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Peregrine Semiconductor Corporation patents


Recent patent applications related to Peregrine Semiconductor Corporation. Peregrine Semiconductor Corporation is listed as an Agent/Assignee. Note: Peregrine Semiconductor Corporation may have other listings under different names/spellings. We're not affiliated with Peregrine Semiconductor Corporation, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "P" | Peregrine Semiconductor Corporation-related inventors


Charge pump stability control

An apparatus for power conversion includes a switching network that controls interconnections between pump capacitors in a capacitor network that has a terminal coupled to a current source, and a charge-management subsystem. In operation, the switching network causes the capacitor network to execute charge-pump operating cycles during each of which the capacitor network adopts different configurations in response to different configurations of the switching network. ... Peregrine Semiconductor Corporation

Mismatch detection using replica circuit

An apparatus for detecting difference in operating characteristics of a main circuit by using a replica circuit is presented. In one exemplary case, a sensed difference in operating characteristics of the two circuits is used to drive a tuning control loop to minimize the sensed difference. ... Peregrine Semiconductor Corporation

Tuning capacitance to enhance fet stack voltage withstand

An rf switch to controllably withstand an applied rf voltage vsw, or a method of fabricating such a switch, which includes a string of series-connected constituent fets with a node of the string between each pair of adjacent fets. The method includes controlling capacitances between different nodes of the string to effectively tune the string capacitively, which will reduce the variance in the rf switch voltage distributed across each constituent fet, thereby enhancing switch breakdown voltage. ... Peregrine Semiconductor Corporation

Positive logic digitally tunable capacitor

Methods and devices providing positive logic biasing schemes for use in a digitally tuning capacitor in an integrated circuit device are described. The described methods can be used in integrated circuits with stringent requirements in terms of switching time, power handling, noise sensitivity and power consumption. ... Peregrine Semiconductor Corporation

Body tie optimization for stacked transistor amplifier

A transistor stack can include a combination of floating and body tied devices. Improved performance of the rf amplifier can be obtained by using a single body tied device as the input transistor of the stack, or as the output transistor of the stack, while other transistors of the stack are floating transistors. ... Peregrine Semiconductor Corporation

Switched-capacitor converters with low voltage gate drivers

An apparatus for converting voltage includes terminals coupled to external circuits at corresponding voltages and a switching network having driving circuits and semiconductor switches that interconnect capacitors in successive states to one another and to the terminals. The switches interconnect some capacitors to one another through a series of switches when an activation pattern causes them to be activated. ... Peregrine Semiconductor Corporation

S-contact for soi

Systems, methods, and apparatus for an improved protection from charge injection into layers of a device using resistive structures are described. Such resistive structures, named s-contacts, can be made using simpler fabrication methods and less fabrication steps. ... Peregrine Semiconductor Corporation

Dc-dc converter with modular stages

An apparatus for processing electric power includes a power-converter having a path for power flow between first and second power-converter terminals. During operation the first and second power-converter terminals are maintained at respective first and second voltages. ... Peregrine Semiconductor Corporation

Scalable periphery tunable matching power amplifier

A scalable periphery tunable matching power amplifier is presented. Varying power levels can be accommodated by selectively activating or deactivating unit cells of which the scalable periphery tunable matching power amplifier is comprised. ... Peregrine Semiconductor Corporation

Integrated circuit calibration architecture

A calibration architecture that enables accurate calibration of radio frequency (rf) integrated circuits (ics) chips used in transceiver rf systems in a relatively simple testing environment. Embodiments of the invention include one or more on-chip switchable internal calibration paths that enable direct coupling of a portion of the on-chip circuit to an rf test system while isolating other circuitry on the chip. ... Peregrine Semiconductor Corporation

Integrated circuit calibration architecture

A calibration architecture that enables accurate calibration of radio frequency (rf) integrated circuits (ics) chips used in transceiver rf systems in a relatively simple testing environment. Embodiments of the invention include one or more on-chip switchable internal calibration paths that enable direct coupling of a portion of the on-chip circuit to an rf test system while isolating other circuitry on the chip. ... Peregrine Semiconductor Corporation

Radio frequency switching circuit with distributed switches

An rf switching device having distributed shunt switches distributed along transmission lines to improve rf bandwidth as well as the signal isolation of the device. The shunt switches may be physically positioned on both sides of the transmission lines to keep an integrated circuit (ic) design essentially symmetrical so as to provide predictable and reliable operational characteristics. ... Peregrine Semiconductor Corporation

Rf switch with bypass topology

An rf signal switch circuit that allows connection of any of n radio frequency (rf) input terminals to a switch output port, either in an in-circuit mode or in a bypass mode. Embodiments of the invention allow for both a single switch in the series input path while still having the ability to isolate the bypass path from an input matching network. ... Peregrine Semiconductor Corporation

Gate drivers for stacked transistor amplifiers

Various methods and circuital arrangements for biasing one or more gates of stacked transistors of an amplifier are possible where the amplifier is configured to operate in at least an active mode and a standby mode. Circuital arrangements can reduce bias circuit and stacked transistors standby current during operation in the standby mode and to reduce impedance presented to the gates of the stacked transistors during operation in the active mode while maintaining voltage compliance of the stacked transistors during both modes of operation.. ... Peregrine Semiconductor Corporation

05/10/18 / #20180131326

Universal rf amplifier controller

Various methods and circuital arrangements for controlling an rf amplifier while reducing size, cost and power consumption are presented. Included is an amplifier controller unit that provides different current amplification stages, via corresponding calibration and control blocks, that can be used for calibrating an output power of the rf amplifier based on a reference current. ... Peregrine Semiconductor Corporation

05/03/18 / #20180123566

Low phase shift, high frequency attenuator

A wideband rf attenuator circuit that has a reduced impact on the phase of an applied signal when switched between an attenuation state and a non-attenuating reference or bypass state. A low phase shift attenuation at high rf frequencies can be achieved by utilizing a switched signal path attenuator topology with multiple distributed transmission line elements per signal path to provide broadband operation, distribute parasitic influences, and improve isolation to achieve higher attenuation at higher frequencies while still maintaining low phase shift operational characteristics. ... Peregrine Semiconductor Corporation

05/03/18 / #20180123563

Method, system, and apparatus for resonator circuits and modulating resonators

Embodiments of resonator circuits and modulating resonators and are described generally herein. One or more acoustic wave resonators may be coupled in series or parallel to generate tunable filters. ... Peregrine Semiconductor Corporation

05/03/18 / #20180121384

Serial-bus interface for mutli-die module

Circuits and methods for efficient interconnect layout of multiple circuit elements, including integrated circuits (ics), within a circuit module, while enabling only a single control/status (c/s) connection per module. In a first embodiment, the c/s interfaces of multiple ics are configured in parallel within a multi-ic module, and coupled through a single module serial bus to a system c/s serial bus. ... Peregrine Semiconductor Corporation

05/03/18 / #20180121381

Serial-bus interface for mutli-die module

Circuits and methods for efficient interconnect layout of multiple circuit elements, including integrated circuits (ics), within a circuit module, while enabling only a single control/status (c/s) connection per module. In a first embodiment, the c/s interfaces of multiple ics are configured in parallel within a multi-ic module, and coupled through a single module serial bus to a system c/s serial bus. ... Peregrine Semiconductor Corporation

04/12/18 / #20180102764

Programmable voltage variable attenuator

A programmable voltage variable attenuator (vva) that enables selection among multiple analog, continuous attenuation ranges. Some embodiments include a dual-mode interface to enable digitally programming a dac and provide the analog output to control the attenuation level of the vva, or alternatively apply an externally provided analog voltage to directly control the vva attenuation level. ... Peregrine Semiconductor Corporation

04/12/18 / #20180102763

Temperature compensated digital step attenuator

Circuits and methods for eliminating or mitigating the amount of temperature-dependent variation in the relative attenuation of a multi-valued digital step attenuator (dsa) by using resistive components having temperature-dependent resistance values that compensate for or offset changes in the temperature-dependent on resistance (ron) of the switches within the dsa. In some embodiments, dsa attenuator cell switches are fabricated to have positive first-order resistance temperature (fort) coefficients, while temperature-compensating series attenuation resistances are fabricated as a positive fort coefficient resistor and temperature-compensating shunt resistances are fabricated as either a negative fort coefficient resistor or a combination of a negative fort coefficient resistor in parallel with a positive fort coefficient resistor.. ... Peregrine Semiconductor Corporation

04/05/18 / #20180097539

Broadband power limiter

A broadband power limiter having a distributed architecture of multiple segments of self-actuating, adjustable power limiters, where the limiter segments are separated from each other along a signal path by intermediate matching inductors. The intermediate matching inductors are chosen to form, in combination with the capacitances of the limiter segments, an impedance matched, low-loss, broadband transmission line. ... Peregrine Semiconductor Corporation

04/05/18 / #20180097509

Methods and apparatuses for use in tuning reactance in a circuit device

Methods and apparatuses for use in tuning reactance are described. Open loop and closed loop control for tuning of reactances are also described. ... Peregrine Semiconductor Corporation

04/05/18 / #20180097444

Fault control for switched capacitor power converter

Transient or fault conditions for a switched capacitor power converter are detected by measuring one or more of internal voltages and/or currents associated with switching elements (e.g., transistors) or phase nodes, or voltages or currents at terminals of the converter, and based on these measurements detect that a condition has occurred when the measurements deviate from a predetermined range. Upon detection of the condition fault control circuitry alters operation of the converter, for example, by using a high voltage switch to electrically disconnect at least some of the switching elements from one or more terminals of the converter, or by altering timing characteristics of the phase signals.. ... Peregrine Semiconductor Corporation

04/05/18 / #20180097356

Adjustable power limiter with integrated power detector

A limiter having a more ideal limiting function, a short response time, and an adjustable limiting threshold. In one embodiment, a self-activating limiter stack is coupled between circuit ground and a signal line between a source and a receiver. ... Peregrine Semiconductor Corporation

03/29/18 / #20180091045

Differential charge pump

A dc-to-dc voltage converter comprising a differential charge pump that utilizes a differential clocking scheme to reduce output electrical noise by partial cancellation of charge pump glitches (voltage transients), and a corresponding method of operating a differential charge pump. The differential charge pump can be characterized as having at least two charge pump sections that initiate charge pumping in opposite phases of a clock signal to transfer (pump) charge to storage capacitors. ... Peregrine Semiconductor Corporation

03/22/18 / #20180083614

Method and apparatus for use in improving linearity of mosfets using an accumulated charge sink

A method and apparatus for use in improving the linearity characteristics of mosfet devices using an accumulated charge sink (acs) are disclosed. The method and apparatus are adapted to remove, reduce, or otherwise control accumulated charge in soi mosfets, thereby yielding improvements in fet performance characteristics. ... Peregrine Semiconductor Corporation

03/22/18 / #20180083579

Lna with programmable linearity

A receiver front end capable of receiving and processing intraband non-contiguous carrier aggregate (ca) signals using multiple low noise amplifiers (lnas) is disclosed herein. A cascode having a “common source” input stage and a “common gate” output stage can be turned on or off using the gate of the output stage. ... Peregrine Semiconductor Corporation

03/22/18 / #20180083578

Cascode amplifier bias circuits

Bias circuits and methods for silicon-based amplifier architectures that are tolerant of supply and bias voltage variations, bias current variations, and transistor stack height, and compensate for poor output resistance characteristics. Embodiments include power amplifiers and low-noise amplifiers that utilize a cascode reference circuit to bias the final stages of a cascode amplifier under the control of a closed loop bias control circuit. ... Peregrine Semiconductor Corporation

03/22/18 / #20180083577

Standby voltage condition for fast rf amplifier bias recovery

Various methods and circuital arrangements for biasing one or more gates of stacked transistors of an amplifier are possible where the amplifier is configured to operate in at least an active mode and a standby mode. Circuital arrangements can reduce bias circuit standby current during operation in the standby mode while allowing a quick recovery to normal operating conditions of the amplifier. ... Peregrine Semiconductor Corporation

03/15/18 / #20180076812

High speed and high voltage driver

Systems, methods, and apparatus for biasing a high speed and high voltage driver using only low voltage transistors are described. The apparatus and method are adapted to control biasing voltages to the low voltage transistors such as not to exceed operating voltages of the low voltage transistors while allowing for dc to high speed operation of the driver at high voltage. ... Peregrine Semiconductor Corporation

03/15/18 / #20180076715

Current protected integrated transformer driver for isolating a dc-dc convertor

An improved electronic oscillator circuit suitable for use in an isolating dc-to-dc converter circuit, and an improved isolating dc-to-dc converter circuit. In one embodiment, an integrated circuit coupled to a transformer includes an oscillator and an output driver. ... Peregrine Semiconductor Corporation

03/08/18 / #20180069530

Positive logic digitally tunable capacitor

Methods and devices providing positive logic biasing schemes for use in a digitally tuning capacitor in an integrated circuit device are described. The described methods can be used in integrated circuits with stringent requirements in terms of switching time, power handling, noise sensitivity and power consumption. ... Peregrine Semiconductor Corporation

03/08/18 / #20180069509

Universal rf amplifier controller

Various methods and circuital arrangements for controlling an rf amplifier while reducing size, cost and power consumption are presented. Included is an amplifier controller unit that provides different current amplification stages that can be used for calibrating an output power of the rf amplifier based on a reference current. ... Peregrine Semiconductor Corporation

03/01/18 / #20180062645

Switch circuit and method of switching radio frequency signals

An rf switch circuit and method for switching rf signals that may be fabricated using common integrated circuit materials such as silicon, particularly using insulating substrate technologies. The rf switch includes switching and shunting transistor groupings to alternatively couple rf input signals to a common rf node, each controlled by a switching control voltage (sw) or its inverse (sw_), which are approximately symmetrical about ground. ... Peregrine Semiconductor Corporation

03/01/18 / #20180062576

Double balanced mixer

A fet based double balanced mixer (dbm) that exhibits good conversion gain and iip3 values and provides improved linearity and wide bandwidth. In one embodiment, a first balun is configured to receive a local oscillator (lo) signal and generate two balanced lo signals that are coupled to two corresponding opposing nodes of a four-node fet ring. ... Peregrine Semiconductor Corporation

03/01/18 / #20180062507

Dc-dc transformer with inductor for the facilitation of adiabatic inter-capacitor charge transport

An apparatus for power transformation includes a power converter having a charge pump, a first regulator that regulates the power provided by the power converter, and a magnetic filter connected to a terminal of the charge pump. The particular terminal to which the magnetic filter is connected is selected to facilitate adiabatic inter-capacitor charge transport within the charge pump.. ... Peregrine Semiconductor Corporation

03/01/18 / #20180061985

Method and apparatus for use in improving linearity of mosfets using an accumulated charge sink - harmonic wrinkle reduction

A method and apparatus for use in improving linearity sensitivity of mosfet devices having an accumulated charge sink (acs) are disclosed. The method and apparatus are adapted to address degradation in second- and third-order intermodulation harmonic distortion at a desired range of operating voltage in devices employing an accumulated charge sink.. ... Peregrine Semiconductor Corporation

02/15/18 / #20180046210

Low-noise high efficiency bias generation circuits and method

Embodiments of signal bias generators and regulators are described generally herein. Other embodiments may be described and claimed.. ... Peregrine Semiconductor Corporation

02/01/18 / #20180034363

Power converter with modular stages connected by floating terminals

An apparatus for electric power conversion includes a converter having a regulating circuit and switching network. The regulating circuit has magnetic storage elements, and switches connected to the magnetic storage elements and controllable to switch between switching configurations. ... Peregrine Semiconductor Corporation

01/18/18 / #20180019722

Hybrid coupler with phase and attenuation control

An rf hybrid coupler with phase and attenuation control that efficiently combines the functions of phase shifting and attenuation within a circuit. Embodiments include a hybrid coupler connected to parallel resistance-reactance (rx) circuits, where the reactance x may be a capacitor c or an inductor l; a hybrid coupler connected to parallel rx circuits (which may be variable), each of which is in turn series coupled to an inductive element l which corrects for attenuation range collapse while providing for fairly flat phase shift and attenuation performance as a function of frequency; and two hybrid couplers in a combined phase shifter and attenuator configuration, each with opposite frequency-dependent slopes and cascaded in series such that the slopes substantially cancel each other out, resulting in flat responses versus frequency.. ... Peregrine Semiconductor Corporation

01/18/18 / #20180019721

Attenuator de-qing loss improvement and phase balance

The de-qing loss and phase imbalance caused by the inherent capacitance of a switched resistance, such as a mosfet with a resistor, can be reduced by using a shunting switch across the resistor that is in series with the resistor's switch. The shunting switch shorts across the resistor when the resistor's switch is open and in reference mode, thereby significantly reducing the resistance in series with the inherent capacitance of the open resistor's switch.. ... Peregrine Semiconductor Corporation

01/18/18 / #20180019710

Source switched split lna

A receiver front end capable of receiving and processing intraband non-contiguous carrier aggregate (ca) signals using multiple low noise amplifiers (lnas) is disclosed herein. A cascode having a “common source” configured input fet and a “common gate” configured output fet can be turned on or off using the gate of the output fet. ... Peregrine Semiconductor Corporation

01/04/18 / #20180006628

Method, system, and apparatus for resonator circuits and modulating resonators

Embodiments of resonator circuits and modulating resonators and are described generally herein. One or more acoustic wave resonators may be coupled in series or parallel to generate tunable filters. ... Peregrine Semiconductor Corporation

01/04/18 / #20180006610

Low-noise high efficiency bias generation circuits and method

A bias generation method or apparatus defined by any one or any practical combination of numerous features that contribute to low noise and/or high efficiency biasing, including: having a charge pump control clock output with a waveform having limited harmonic content or distortion compared to a sine wave; having a ring oscillator to generating a charge pump clock that includes inverters current limited by cascode devices and achieves substantially rail-to-rail output amplitude; having a differential ring oscillator with optional startup and/or phase locking features to produce two phase outputs suitably matched and in adequate phase opposition; having a ring oscillator of less than five stages generating a charge pump clock; capacitively coupling the clock output(s) to some or all of the charge transfer capacitor switches; biasing an fet, which is capacitively coupled to a drive signal, to a bias voltage via an “active bias resistor” circuit that conducts between output terminals only during portions of a waveform appearing between the terminals, and/or wherein the bias voltage is generated by switching a small capacitance at cycles of said waveform. A threshold voltage bias voltage generation circuit may a charge pump for the bias generation may include a regulating feedback loop including an ota that is also suitable for other uses, the ota having a ratio-control input that controls a current mirror ratio in a differential amplifier over a continuous range, and optionally has differential outputs including an inverting output produced by a second differential amplifier that optionally includes a variable ratio current mirror controlled by the same ratio-control input. ... Peregrine Semiconductor Corporation

01/04/18 / #20180006554

Charge pump timing control

Cycle timing of a charge pump is adapted according to monitoring of operating characteristics of a charge pump and/or peripheral elements coupled to the charge pump. In some examples, this adaptation provides maximum or near maximum cycle times while avoiding violation of predefine constraints (e.g., operating limits) in the charge pump and/or peripheral elements.. ... Peregrine Semiconductor Corporation

01/04/18 / #20180005966

Integrated tunable filter architecture

An apparatus and method for a frequency based integrated circuit that selectively filters out unwanted bands or regions of interfering frequencies utilizing one or more tunable notch or bandpass filters or tunable low or high pass filters capable of operating across multiple frequencies and multiple bands in noisy rf environments. The tunable filters are fabricated within the same integrated circuit package as the associated frequency based circuitry, thus minimizing r, l, and c parasitic values, and also allowing residual and other parasitic impedance in the associated circuitry and ic package to be absorbed and compensated.. ... Peregrine Semiconductor Corporation

12/28/17 / #20170372984

Systems and methods for thermal conduction using s-contacts

An integrated circuit architecture that provides a path having relatively low thermal resistance between one or more electronic devices and one or more thermal structures formed on an insulator layer on a substrate. Independent parallel thermal conduction paths are provided through the insulator layer, such as a buried oxide (“box”) layer, to allow heat to flow from the substrate layer to a thermal structure disposed upon the box layer. ... Peregrine Semiconductor Corporation

12/21/17 / #20170363676

Design for test of stacked transistors

A stack of series coupled transistors comprising, at least two sub-portions of the stack of series coupled transistors, and at least one logic decoder coupled to the at least two sub-portions to turn on at least one sub-portion.. . ... Peregrine Semiconductor Corporation

12/14/17 / #20170359058

Apparatus for reducing rf crossover coupling

Apparatus and arrangements for reducing crossover coupling of two or more rf signals are described. In one case, a crossover structure is described where rf signals are routed through coplanar waveguides having a specific characteristic impedance and crossing at a central point of the crossover structure by way of a bridge. ... Peregrine Semiconductor Corporation

12/14/17 / #20170359056

Methods and apparatus for reducing rf crossover coupling

Systems, methods, and apparatus for reducing crossover coupling of two or more rf signals are described. In one case, a crossover structure is described where rf signals are routed through coplanar waveguides having a specific characteristic impedance and crossing at a central point of the crossover structure by way of a bridge. ... Peregrine Semiconductor Corporation

12/14/17 / #20170359029

Amplifiers operating in envelope tracking mode or non-envelope tracking mode

Various envelope tracking amplifiers are presented that can be switched between an et (envelope tracking) mode and a non-et mode. Switches and/or tunable components are utilized in constructing the envelope tracking amplifiers that can be switched between the et mode and the non-et mode.. ... Peregrine Semiconductor Corporation

11/30/17 / #20170346486

Independent control of branch fets for rf performance improvement

A fet-based rf switch architecture and method that provides for independent control of fets within component branches of a switching circuit. With independent control of branch fets, every rf fet in an inactive branch that is in an “open” (capacitive) state can be shunted to rf ground and thus mitigate impedance mismatch effects. ... Peregrine Semiconductor Corporation

11/30/17 / #20170346474

Reconfigurable direct mapping for rf switch control

A circuit architecture and process that provides for a dual-mode methodology for an rf integrated circuit (ic) switch circuit that allows switching between a direct mapping configuration and a fully decoded mapping configuration, and further provides for changing either mapping configuration after fabrication. A control word is selectively compared to a programmed map register value so that, in a first mode, only one bit position of a control word matches a decoded programmed map bit pattern, and in a second mode, all bits of a control word match a corresponding programmed map bit pattern. ... Peregrine Semiconductor Corporation

11/23/17 / #20170338779

Systems and methods for optimizing amplifier operations

Methods and systems for optimizing amplifier operations are described. The described methods and systems particularly describe a feed-forward control circuit that may also be used as a feed-back control circuit in certain applications. ... Peregrine Semiconductor Corporation

11/23/17 / #20170338298

Floating body contact circuit method for improving esd performance and switching speed

Embodiments of systems, methods, and apparatus for improving esd performance and switching time for semiconductor devices including metal-oxide-semiconductor (mos) field effect transistors (fets), and particularly to mosfets fabricated on semiconductor-on-insulator (“soi”) and silicon-on-sapphire (“sos”) substrates.. . ... Peregrine Semiconductor Corporation

11/23/17 / #20170338251

Butted body contact for soi transistor

Systems, methods, and apparatus for an improved body tie construction that produces all the benefits of conventional body tie (h-gate, t-gate), without the limitations and degradations associated with those constructions are described. The improved body tie construction is configured to have a lower resistance body tie when the transistor is “off” (vg approximately 0 volts). ... Peregrine Semiconductor Corporation

11/23/17 / #20170338230

S-contact for soi

Systems, methods, and apparatus for an improved protection from charge injection into layers of a device using resistive structures are described. Such resistive structures, named s-contacts, can be made using simpler fabrication methods and less fabrication steps. ... Peregrine Semiconductor Corporation

11/09/17 / #20170324407

Radio frequency switching circuit with distributed switches

An rf switching device having distributed shunt switches distributed along transmission lines to improve rf bandwidth as well as the signal isolation of the device. The shunt switches may be physically positioned on both sides of the transmission lines to keep an integrated circuit (ic) design essentially symmetrical so as to provide predictable and reliable operational characteristics. ... Peregrine Semiconductor Corporation

10/26/17 / #20170309581

Switchable die seal connection

An integrated circuit (ic) structure for radio frequency (rf) circuits having a multi-point selectably grounded die seal and multi-point selectably grounded signal paths. Embodiments include switch-coupled grounding pads that can selectively electrically couple an internal grounding pad within the die seal of an ic die to a connection point on the die seal and/or on a signal path. ... Peregrine Semiconductor Corporation

10/05/17 / #20170288608

Double balanced mixer

A fet based double balanced mixer (dbm) that exhibits good conversion gain and iip3 values and provides improved linearity and wide bandwidth. In one embodiment, a first balun is configured to receive a local oscillator (lo) signal and generate two balanced lo signals that are coupled to two corresponding opposing nodes of a four-node fet ring. ... Peregrine Semiconductor Corporation

09/14/17 / #20170264288

High speed and high voltage driver

Systems, methods, and apparatus for biasing a high speed and high voltage driver using only low voltage transistors are described. The apparatus and method are adapted to control biasing voltages to the low voltage transistors such as not to exceed operating voltages of the low voltage transistors while allowing for dc to high speed operation of the driver at high voltage. ... Peregrine Semiconductor Corporation

08/24/17 / #20170244432

Adaptive tuning network for combinable filters

A flexible multi-path rf adaptive tuning network switch architecture that counteracts impedance mismatch conditions arising from various combinations of coupled rf band filters, particularly in a carrier aggregation-based radio system. In one version, a digitally-controlled tunable matching network is coupled to a multi-path rf switch in order to provide adaptive impedance matching for various combinations of rf band filters. ... Peregrine Semiconductor Corporation

08/17/17 / #20170237462

Integrated rf front end with stacked transistor switch

A monolithic integrated circuit (ic), and method of manufacturing same, that includes all rf front end or transceiver elements for a portable communication device, including a power amplifier (pa), a matching, coupling and filtering network, and an antenna switch to couple the conditioned pa signal to an antenna. An output signal sensor senses at least a voltage amplitude of the signal switched by the antenna switch, and signals a pa control circuit to limit pa output power in response to excessive values of sensed output. ... Peregrine Semiconductor Corporation

08/17/17 / #20170237423

High frequency absorptive switch architecture

An absorptive switch architecture suitable for use in high frequency rf applications. A switching circuit includes a common terminal and one or more ports, any of which may be selectively coupled to the common terminal by closing an associated path switch; non-selected, unused ports are isolated from the common terminal by opening an associated path switch. ... Peregrine Semiconductor Corporation

08/17/17 / #20170237418

Self-activating adjustable power limiter

A fast response time, self-activating, adjustable threshold limiter including a limiting element le, a first coupling element ce1 electrically connected from a signal node of le to a control input of le, and a second coupling element ce2 electrically connected from the control input of le to a nominal node of le. An initial bias (control) voltage is also supplied to the control input of le to dynamically control the limiting threshold for the limiter. ... Peregrine Semiconductor Corporation

08/17/17 / #20170237417

Integrated switch and self-activating adjustable power limiter

A fast response time, self-activating, adjustable threshold limiter including a limiting element le, a first coupling element ce1 electrically connected from a signal node of le to a control input of le, and a second coupling element ce2 electrically connected from the control input of le to a nominal node of le. An initial bias (control) voltage is also supplied to the control input of le to dynamically control the limiting threshold for the limiter. ... Peregrine Semiconductor Corporation

08/17/17 / #20170237412

Low phase shift, high frequency attenuator

A wideband rf attenuator circuit that has a reduced impact on the phase of an applied signal when switched between an attenuation state and a non-attenuating reference or bypass state. A low phase shift attenuation at high rf frequencies can be achieved by utilizing a switched signal path attenuator topology with multiple distributed transmission line elements per signal path to provide broadband operation, distribute parasitic influences, and improve isolation to achieve higher attenuation at higher frequencies while still maintaining low phase shift operational characteristics. ... Peregrine Semiconductor Corporation

08/17/17 / #20170236946

Method and apparatus improving gate oxide reliability by controlling accumulated charge

A method and apparatus are disclosed for use in improving the gate oxide reliability of semiconductor-on-insulator (soi) metal-oxide-silicon field effect transistor (mosfet) devices using accumulated charge control (acc) techniques. The method and apparatus are adapted to remove, reduce, or otherwise control accumulated charge in soi mosfets, thereby yielding improvements in fet performance characteristics. ... Peregrine Semiconductor Corporation

08/10/17 / #20170230049

High throw-count rf switch

A high throw-count multiple-pole fet-based rf switch architecture that provides good rf performance in terms of insertion loss, return loss, isolation, linearity, and power handling. A common port rfc is coupled along a common path to multiple ports rfn. ... Peregrine Semiconductor Corporation

08/10/17 / #20170230033

Integrated and combined phase shifter and isolation switch

A phase shifter unit cell or a connected set of such cells that can be well isolated from external circuitry and which do not introduce insertion loss into an rf signal path, exhibit good return loss, and further provides additional advantages when combined with bracketing attenuator circuits. More particularly, embodiments integrate a high-isolation function within a phase shifter circuit by breaking the complimentary nature of the control signals to a phase shifter cell to provide greater control of switch states internal to the phase shifter cell and thus enable a distinct high-isolation state, and by including a switchable shunt termination resistor for use in the high-isolation state. ... Peregrine Semiconductor Corporation

08/10/17 / #20170230028

Low loss multi-state phase shifter

A multi-state phase shifter circuit having both low insertion loss (il) and good return loss. Two or more phase shift elements are combined into a single cell architecture to reduce the number of series-connected fet switches and reduce the total il. ... Peregrine Semiconductor Corporation

07/27/17 / #20170214402

Dual voltage supply

A system, comprising a dual voltage supply configured to receive a logic state input voltage and configured to output an output voltage, wherein the dual voltage supply is configured to output a nominal voltage at a high state of the logic state input voltage and the dual voltage supply is configured to output a high voltage at a low state of the logic state input voltage, a pre-charge capacitor is configured to receive the output voltage of the dual voltage supply and an output buffer has an output buffer power input is coupled to the pre-charge capacitor and configured to receive the output voltage of the dual voltage supply, an output buffer signal input is configured to receive the logic state input voltage and an output buffer output is configured to output a digital output signal.. . ... Peregrine Semiconductor Corporation

07/27/17 / #20170214371

Programmable low noise amplifier

A selectable low noise amplifier (lna) system comprising, a plurality of lnas having a plurality of lna characteristics and at least one selection switch network coupled to the plurality of lnas to select at least one of the plurality of lnas.. . ... Peregrine Semiconductor Corporation

07/20/17 / #20170207793

Non-linear converter

A non-linear converter comprising a non-linear voltage divider having a plurality of resistors representing a non-linear transfer function, an analog multiplexer having analog multiplexer inputs coupled to the non-linear voltage divider and configured to output an analog multiplexer output, the analog multiplexer chooses one of the plurality of resistors based on a logic signal and the non-linear transfer function, an analog comparator having an analog comparator first input configured to receive an analog input voltage, an analog comparator second input configured to receive the analog multiplexer output and the analog comparator configured to output a comparator voltage output and a logic loop coupled to the analog comparator and configured to receive the comparator voltage output and configured to output the logic signal, wherein the logic signal represents a linearized digital word.. . ... Peregrine Semiconductor Corporation

07/20/17 / #20170207769

Digital step attenuator

Digital step attenuator (dsa) configurations which are capable of handling high power signals, have low insertion loss and parasitic effects, have few or no glitches between state transitions, have minimal effect on chip area and power dissipation on an integrated circuit (ic) die (or “chip”), and provide flexibility of design for various applications. Embodiments utilize one or more architectural features and/or design techniques to achieve such characteristics, including reduced resistor and fet switch sizes, reduced series stack sizes, unidirectional input power configurations, capacitor compensation to match bandwidth characteristics, activating low-power thermometer-weighted attenuator cells only after activating higher power thermometer-weighted attenuator cells, and reducing signal transients (glitches) using a thermometer-weighted configuration of attenuator cells.. ... Peregrine Semiconductor Corporation

07/06/17 / #20170194688

Reflection-based rf phase shifter

Programmable multi-reflective phase shifters which provide reduced root-mean-square phase error, can be optimized for a desired frequency band, can compensate for process variations arising during manufacture, and can help offset system level performance shortfalls. Embodiments include a hybrid coupler (e.g., a lange hybrid coupler) in combination with a multi-reflective reactance-based terminating circuit with a number of different configurations that permit various modes of operation, including a thermometric mode, a phase overlap mode with interstitial phase shift states, an extended range phase shift mode, and a “tweak bit” mode. ... Peregrine Semiconductor Corporation

06/15/17 / #20170170177

S-contact for soi

Systems, methods, and apparatus for an improved protection from charge injection into layers of a device using resistive structures are described. Such resistive structures, named s-contacts, can be made using simpler fabrication methods and less fabrication steps. ... Peregrine Semiconductor Corporation

06/08/17 / #20170163402

Systems and methods for minimizing insertion loss in a multi-mode communications system

Methods and system for using a multifunctional filter to minimize insertion loss in a multi-mode communications system are described. Specifically described is a multifunctional filter that is configurable to operate in a band-pass mode when a first type of signal is propagated through the multifunctional filter, and to operate in a low-pass mode when a second type of signal is propagated through the multifunctional filter. ... Peregrine Semiconductor Corporation

06/08/17 / #20170163256

Devices and methods for improving voltage handling and/or bi-directionality of stacks of elements when connected between terminals

Devices and methods for improving voltage handling and/or bi-directionality of stacks of elements when connected between terminals are described. Such devices and method include use of symmetrical compensation capacitances, symmetrical series capacitors, or symmetrical sizing of the elements of the stack.. ... Peregrine Semiconductor Corporation

06/08/17 / #20170162692

Method and apparatus for use in improving linearity of mosfets using an accumulated charge sink-harmonic wrinkle reduction

A method and apparatus for use in improving linearity sensitivity of mosfet devices having an accumulated charge sink (acs) are disclosed. The method and apparatus are adapted to address degradation in second- and third-order intermodulation harmonic distortion at a desired range of operating voltage in devices employing an accumulated charge sink.. ... Peregrine Semiconductor Corporation

05/18/17 / #20170141134

Butted body contact for soi transistor

Systems, methods, and apparatus for an improved body tie construction that produces all the benefits of conventional body tie (h-gate, t-gate), without the limitations and degradations associated with those constructions are described. The improved body tie construction is configured to have a lower resistance body tie when the transistor is “off” (vg approximately 0 volts). ... Peregrine Semiconductor Corporation

05/18/17 / #20170141126

Butted body contact for soi transistor

Systems, methods, and apparatus for an improved body tie construction are described. The improved body tie construction is configured to have a lower resistance body tie exists when the transistor is “off” (vg approximately 0 volts). ... Peregrine Semiconductor Corporation

05/11/17 / #20170134016

Reduced dissipation switch fet gate biasing

Systems, methods, and apparatus for biasing transistors of a transistor stack are described. Such biasing can provide reduced rf power dissipation in a corresponding biasing circuit, improved safe low-frequency operation of the transistor stack while maintain a desired switching speed of the transistor stack. ... Peregrine Semiconductor Corporation

05/11/17 / #20170134012

Delay line system and switching apparatus with embedded attenuators

Systems, methods, and apparatus for reducing standing wave reflections between delay line modules are described. The delay line modules include semiconductor switches, particularly mosfet switches fabricated on silicon-on-insulator (“soi”) and silicon-on-sapphire (“sos”) substrates and embedded attenuators.. ... Peregrine Semiconductor Corporation

05/11/17 / #20170133989

Bias control for stacked transistor configuration

Various methods and circuital arrangements for biasing one or more gates of stacked transistors of an amplifier are presented, where the amplifier can have a varying supply voltage that varies according to a control voltage. The control voltage can be related to a desired output power of the amplifier and/or to an envelope signal of an input signal to the amplifier. ... Peregrine Semiconductor Corporation

05/04/17 / #20170126226

Multiple gate voltage generation for fet switches in radio frequency circuits

Circuits and corresponding methods that provide for selection among multiple different positive and/or multiple different negative fet gate drive voltages for fets in which well-tuned gate drive voltages are needed or desirable for optimal results in a radio frequency integrated circuit. Embodiments include fet gate drive variable voltage generator configurations which provide multiple different positive and/or multiple different negative fet gate drive voltages. ... Peregrine Semiconductor Corporation

04/27/17 / #20170117883

Level shifter

Systems, methods, and apparatus for use in biasing and driving high voltage semiconductor devices using only low voltage transistors are described. The apparatus and method are adapted to control multiple high voltage semiconductor devices to enable high voltage power control, such as power amplifiers, power management and conversion and other applications wherein a first voltage is large compared to the maximum voltage handling of the low voltage control transistors. ... Peregrine Semiconductor Corporation

04/13/17 / #20170104471

Multi-state attenuator

Multi-state radio frequency (rf) attenuator configurations that include bridged-t type, pi-type, and t-type structures each having a programmable throughput section and a coupled programmable shunt section. The throughput sections and shunt sections may be configured in various combinations of parallel and serial fixed or selectable resistance elements such that multiple resistance states and impedance matching states can be programmatically selected, and may include stacked switch elements to withstand applied voltages to a specified design level.. ... Peregrine Semiconductor Corporation

04/06/17 / #20170098996

Variable frequency charge pump

A charge pump circuit that utilizes a sensing circuit for determining the current loading or status of the output supply generated by the charge pump circuit to determine a corresponding frequency for a variable rate clock for the charge pump circuit. When a current load is present, the clock frequency automatically ramps up to a relatively high level to increase the output current of the charge pump circuit. ... Peregrine Semiconductor Corporation

03/23/17 / #20170084478

Structure for radiofrequency applications and process for manufacturing such a structure

The invention relates to a structure for radiofrequency applications comprising: a monocrystalline substrate, a polycrystalline silicon layer directly on the monocrystalline substrate, and an active layer on the polycrystalline silicon layer intended to receive radiofrequency components. At least a first portion of the polycrystalline silicon layer extending from the interface of the polycrystalline silicon layer with the monocrystalline layer includes carbon and/or nitrogen atoms located at the grain boundaries of the polycrystalline silicon at a concentration of between 2% and 20%. ... Peregrine Semiconductor Corporation

03/02/17 / #20170063314

Mismatch detection using replica circuit

An apparatus for detecting an operating characteristic mismatch at an output of an amplifier by using a replica circuit is presented. In one exemplary case, a detected voltage difference at the output of the two circuits is used to drive a tuning control loop to minimize an impedance mismatch at the output of the amplifier. ... Peregrine Semiconductor Corporation

02/09/17 / #20170040973

Method and apparatus for use in digitally tuning a capacitor in an integrated circuit device

A method and apparatus for use in a digitally tuning a capacitor in an integrated circuit device is described. A digitally tuned capacitor dtc is described which facilitates digitally controlling capacitance applied between a first and second terminal. ... Peregrine Semiconductor Corporation

02/02/17 / #20170033786

Rf switch with bypass topology

An rf signal switch circuit that allows connection of any of n radio frequency (rf) input terminals to a switch output port, either in an in-circuit mode or in a bypass mode. Embodiments of the invention allow for both a single switch in the series input path while still having the ability to isolate the bypass path from an input matching network. ... Peregrine Semiconductor Corporation

01/26/17 / #20170026035

Tuning capacitance to enhance fet stack voltage withstand

An rf switch to controllably withstand an applied rf voltage vsw, or a method of fabricating such a switch, which includes a string of series-connected constituent fets with a node of the string between each pair of adjacent fets. The method includes controlling capacitances between different nodes of the string to effectively tune the string capacitively, which will reduce the variance in the rf switch voltage distributed across each constituent fet, thereby enhancing switch breakdown voltage. ... Peregrine Semiconductor Corporation

01/26/17 / #20170026021

Tunable and integrated impedance matching and filter circuit

A high performance integrated tunable impedance matching network with coupled merged inductors. Embodiments include a combination of merged multiport constructively coupled spiral inductors and tunable capacitors configured to reduce insertion losses, circuit size, and optimization time while maintaining a high q factor for the coupled spiral inductors. ... Peregrine Semiconductor Corporation








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