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Monolithic Power Systems Inc patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "M" | Monolithic Power Systems Inc-related inventors


Signal amplifying system in a hall detecting and amplifying system

A signal amplifying system having an oscillator and an amplifying circuit. The oscillator has a first resistor with a first resistance r1 and a first capacitor with a first capacitance c1, and generates an oscillating signal having a frequency f which equals to k1/(r1*c1), k1 is a first proportional parameter. ... Monolithic Power Systems Inc

Battery charging circuit, control circuit and associated control method

A battery charging circuit receives an input current, and provides a system voltage and a charging current to charge a battery. A control circuit used to control the battery charging circuit has a charging current control loop providing a compensation signal, an inductor current control loop providing a first loop control signal, and a system voltage control loop providing a second loop control signal. ... Monolithic Power Systems Inc

Power supply circuit for computing platform

A system has a processor, a battery charging circuit, a voltage regulating circuit and a control circuit. The control circuit provides digitalized feedback signals representative of circuit parameters of the battery charging circuit and circuit parameters of the voltage regulating circuit to the processor and receives a first information and a second information from the processor. ... Monolithic Power Systems Inc

Multi-phase power supply with dc-dc converter integrated circuits having current sharing function

An interleaved multi-phase power supply with a plurality of dc-dc converter ics. Each dc-dc converter ic has a current sharing pin, and the current sharing pins of the plurality of dc-dc converter ics are connected together. ... Monolithic Power Systems Inc

Vid-controlled voltage regulator with audible noise correction

A method for correcting audible noise from a voltage regulator due to a change of a vid indicated by a series of vid commands. A vid difference between a current value and a target value of the vid is compared with a vid threshold when a vid command for changing the vid from the current value to the target value is received. ... Monolithic Power Systems Inc

Multi-channel switching mode power supply and control method thereof

A method for controlling a multi-channel smps having n switching circuits. The method is generating a fast system clock and n load indication signals indicative of load statuses of the n switching circuits, then generating n clock control signals based on the preset pulses of the fast system clock and the n load indication signals. ... Monolithic Power Systems Inc

Semiconductor device with copper migration stopping of a redistribution layer

A semiconductor device having a redistribution layer and a first coating layer. The redistribution layer is formed on a passivation layer of the semiconductor device and has sidewalls and a top surface. ... Monolithic Power Systems Inc

Autonomous power system and associated control method

An autonomous power system has a voltage regulator which converts an input voltage to an output voltage according to a reference voltage. A control method for the power system: receiving a voltage identification code sent by a processor; providing an autonomous voltage identification code when the voltage identification sent by the processor keeps constant during a first preset duration, wherein the autonomous voltage identification code can be updated self-adaptively; providing a reference voltage according to a sum of the voltage identification code and the autonomous identification code; and adjusting the output voltage according to the reference voltage.. ... Monolithic Power Systems Inc

Method for adjusting circuit characteristics with trimming technology in integrated circuits

An integrated circuit includes: a fuse; a reference resistance generator configured to receive a mode signal indicating whether the integrated circuit is working in a test mode or a normal operation mode, wherein based on the mode signal, the reference resistance generator provides a reference resistance, and wherein the reference resistance provided in the test mode is larger than the reference resistance provided in the normal operation mode; a resistance comparator coupled to the fuse and the reference resistance generator, wherein the resistance comparator compares the resistance of the fuse with the reference resistance, and generates a trimming status signal indicating whether the fuse has been trimmed; and a adjusting circuit coupled to resistance comparator and configured to adjust a circuit characteristic of the integrated circuit based on the trimming status signal.. . ... Monolithic Power Systems Inc

Two-channel led driver with short circuit protection and short circuit protection method for two-channel led driver

A two-channel led driver with short circuit protection is discussed. A short process circuit monitors a short condition of the led driver, and locks the short status if short circuit occurs at either one of or both of the channels.. ... Monolithic Power Systems Inc

Cot control circuit and associated dc-dc converter

A cot control circuit for dc-dc converter. The cot control circuit has a synchronizing signal generator, an on time generator and a frequency locking circuit. ... Monolithic Power Systems Inc

Charging mode auto-detection module for charging circuit and associated method

A charging mode auto-detection module for a charging circuit and associated charging mode auto-detection method. The charging mode auto-detection module compatibly includes a voltage dividing charging mode, a bc1.2 mode, a samsung 1.2v/1.2v charging mode and a qc3.0 mode and can detect which of the charging modes is an adaptable charging mode to a needing to be charged device and generate an indication signal indicative of a required charging voltage by the needing to be charged device so that the charging circuit can regulate its bus voltage to the required charging voltage based on the indication signal.. ... Monolithic Power Systems Inc

Method for fabricating ldmos with self-aligned body

A method for fabricating a ldmos device, including: forming a semiconductor substrate; forming a dielectric layer atop the semiconductor substrate and an electric conducting layer on the dielectric layer; forming a first photoresist layer on the electric conducting layer; patterning the first photoresist layer through a first mask to form a first opening; etching the electric conducting layer through the first opening; implanting dopants of a first doping type into the semiconductor substrate through the first opening to form a first body region adjacent to the surface of the semiconductor substrate, and a second body region located beneath the first body region; removing the first photoresist layer; etching the electric conducting layer using a second photoresist layer and a second mask.. . ... Monolithic Power Systems Inc

Power-limit protection circuit with an efuse element

A power-limit protection circuit with an efuse element. The power-limit protection circuit has an efuse element coupled between a first terminal and a second terminal. ... Monolithic Power Systems Inc

02/08/18 / #20180041126

Control circuit for buck-boost power converter with stable bootstrap voltage refresh

A buck-boost power converter and a control circuit for the buck-boost converter. The buck-boost power converter includes a first power switch and a second power switch coupled in series between an input port and a reference ground, and a third power switch and a fourth power switch coupled in series between an output port and the reference ground. ... Monolithic Power Systems Inc

02/08/18 / #20180041117

Control circuit and control method for multi-output dc-dc converter

A multi-output dc-dc converter with constant on time control. The multi-output dc-dc converter has n clock signals, and n switching circuits converting an input voltage signal to n output voltage signals respectively. ... Monolithic Power Systems Inc

02/01/18 / #20180034380

Integrated circuit for switching converter and method for providing power supply voltage to the same

An integrated circuit used for a switching converter has a power supply circuit for providing a power supply voltage, and a control circuit. The switching converter has a switching circuit converting a dc input voltage into an output signal. ... Monolithic Power Systems Inc

01/18/18 / #20180019671

Noise-free control circuit for switching converter and associated control method

Noise-free control circuit and control method for a switching converter. The noise-free control circuit has a timer used to set a noise-free frequency threshed. ... Monolithic Power Systems Inc

01/18/18 / #20180019199

Semiconductor device having redistribution layer with copper migration stopping

A semiconductor device having a first dielectric layer and a redistribution layer. The redistribution layer has sidewalls and is formed on a passivation layer of the semiconductor device. ... Monolithic Power Systems Inc

01/04/18 / #20180007754

Smart led driver and led drive method

A led driver adopts one power stage to provide a constant drive current to drive a load, and to provide different power supply voltages to power a smart module according to a dimming signal input by users through the smart module. The led driver provides high performance with simple circuit structure.. ... Monolithic Power Systems Inc

01/04/18 / #20180007753

Two-channel led driver and the control method thereof

A two-channel led driver adopts one power stage to provide a constant drive current to drive a first channel led and a second channel led, and to provide a power supply voltages to power a smart module. The two-channel led driver controls the total current flowing through the first channel led and the second channel led according to a first dimming signal input by users through the smart module, and controls the dimming ratio between the two channels according to a second dimming signal. ... Monolithic Power Systems Inc

01/04/18 / #20180006564

Auto calibration method used in constant on-time switching converter

An auto calibration method used in switching converters with constant on-time control. The auto calibration method includes: generating a periodical clock signal with a predetermined duty cycle; providing a first voltage and a second voltage to an on-time control circuit to generate an on-time control signal based on the first and second voltage; providing the clock signal and on-time control signal to a logic circuit to generate a switch control signal based on the clock signal and on-time control signal; comparing the duty cycle of the switch control signal with the duty cycle of the clock signal to adjust a calibration code signal; and adjusting circuit parameters of the on-time control circuit in accordance with the calibration code signal.. ... Monolithic Power Systems Inc

12/28/17 / #20170374713

Led driving system and associated control method

A led driving system has an energy storage component receiving an input voltage, a power switch coupled between the energy storage component and a reference ground, a first output switch coupled between the energy storage component and a first output terminal, a second output switch coupled between the energy storage component and a second output terminal, and a control circuit, wherein the first output terminal produces a first output voltage to supply power for a first led array, the second output terminal produces a second output voltage to supply power for a second led array, the control circuit controls a duty cycle of the first output switch according to voltages at cathode terminals of multiple led strings in the led array and controls a duty cycle of the second output switch according to voltages at cathode terminals of multiple led strings in the second led array.. . ... Monolithic Power Systems Inc

12/28/17 / #20170373602

Current limit peak regulation circuit for power converter with low standby power dissipation

A current limit peak regulation circuit, a current limit circuit and a power converter including the current limit peak regulation circuit. The current limit peak regulation circuit provides a current limit threshold to limit a maximum allowable peak current value of a current flowing through a main switch of the power converter and adjusts the current limit threshold to decrease with decrease in a switching frequency of the power converter when the power converter is in a constant voltage mode so as to reduce power dissipation of the power converter in standby mode.. ... Monolithic Power Systems Inc

12/28/17 / #20170370971

Bidirectional current sensing circuit

A bidirectional current sensing circuit includes: a sensing resistor coupled between a load and a reference ground, a first and second auto-zero amplifiers coupled to the sensing resistor to sense the voltage across the sensing resistor, and an output transistor. One of the first and second auto-zero amplifiers operates in an output mode and the other of the first and second auto-zero amplifiers operates in a zeroing mode according to a polarity of a voltage across the sensing resistor. ... Monolithic Power Systems Inc

11/30/17 / #20170346400

Buck-boost converters with ramp compensation

A control method used in a four-switch buck-boost converter includes: filtering the voltage at the first switching node and generating a first ramp signal; filtering the first ramp signal and generating a first average signal; filtering the voltage at the second switching node and generating a second ramp signal; filtering the second ramp signal and generating a second average signal; generating a set signal based on the first ramp signal, the first average signal, the second ramp signal, the second average signal, a reference signal, and a feedback signal indicative of the output voltage, so as to turn on the first and third transistors, and turn off the second and fourth transistors; turning off the first transistor and turning on the second transistor when the on-time of the first transistor reaches a first time threshold; and turning off the third transistor and turning on the fourth transistor when the on-time of the third transistor reaches a second time threshold.. . ... Monolithic Power Systems Inc

11/23/17 / #20170338739

Current detection and averaging circuit for switching power supplies with a half-bridge switch circuit topology

A power supply includes a half-bridge circuit. The power supply further includes an output inductor connected to a switch node that is common to a high side switch and a low side switch of the half-bridge. ... Monolithic Power Systems Inc

11/16/17 / #20170330853

Copper structures with intermetallic coating for integrated circuit chips

An integrated circuit (ic) chip includes a copper structure with an intermetallic coating on the surface. The ic chip includes a substrate with an integrated circuit. ... Monolithic Power Systems Inc

11/09/17 / #20170324411

Voltage converter integrated circuit with an integrated bootstrap capacitor

A bootstrap circuit integrated to a voltage converter integrated circuit (ic) and a voltage converter ic for a switch mode voltage regulator. The bootstrap circuit is used to provide a bootstrap voltage signal for driving a high side switch of the voltage converter ic. ... Monolithic Power Systems Inc

11/09/17 / #20170324323

Single inductor dual output voltage converter and the method thereof

A voltage converter provides a positive voltage and a negative voltage with a single inductor. The voltage converter has a first switch, a second switch, a third switch and a fourth switch switched periodically, wherein each switching period comprise a first time period, a second time period and a third time period, and wherein: during the first time period, the first switch and the fourth switch are turned on, whereas the second switch and the third switch are turned off; during the second time period, the first switch and the third switch are turned on, whereas the second switch and the fourth switch are turned off; and during the third time period, the second switch and the fourth switch are turned on, whereas the first switch and the third switch are turned off.. ... Monolithic Power Systems Inc

10/12/17 / #20170294902

Electronic device with substrate current management

An electronic device with substrate current management. The electronic device has a semiconductor substrate in which a schottky diode is formed. ... Monolithic Power Systems Inc

10/05/17 / #20170288539

Dc-dc converter with transient control and the method thereof

A dc-dc converter with transient control. The dc-dc converter includes a power switching circuit, a current to voltage converter, a pi circuit 403, a voltage to current converter 404 and a logic and control circuit 405. ... Monolithic Power Systems Inc

10/05/17 / #20170287559

Multi-time programmable non-volatile memory cell and associated circuits

A multi-time programmable memory cell has a differential multi-time programmable memory cell and a second-level latch cell. The differential multi-time programmable memory cell provides a first balance signal and a second balance signal, and the second-level latch cell receives the first balance signal and the second balance signal and provides an output signal according to the first balance signal and the second balance signal based on a first latch control signal and a second latch control signal.. ... Monolithic Power Systems Inc

09/28/17 / #20170279454

Clock circuit and control method thereof

A clock circuit and control method thereof to avoid missing the clock signal generated by the clock circuit when the generated clock signal is synced with an external clock signal, wherein the clock circuit comprises a current compensation circuit and a current control circuit. The clock signal is generated by alternately charging and discharging a capacitor with a charging current based on a sync current and a compensating current when an external clock signal is detected. ... Monolithic Power Systems Inc

09/28/17 / #20170277251

Adaptive power supply circuit and system

A power supply system compatible with both usb 2.0 protocol and usb type-c specification. The power supply system monitors the die temperature. ... Monolithic Power Systems Inc

09/14/17 / #20170264195

Soft start switching power supply system

A switching power supply system includes a switching converter, to convert an input voltage into an output voltage and to generate a switching signal; a feedback circuit, to generate a feedback signal; an error amplifier to generate an error signal; a triangle signal generator to generate a triangle signal; a constant on time control circuit to receive error signal and the triangle signal, and to generate a constant on time control signal to control power switch; in the system. The triangle signal has a dc bias based on either a soft start signal or a second reference signal. ... Monolithic Power Systems Inc

09/07/17 / #20170257032

Synchronous switching converter and associated integrated semiconductor device

A synchronous switching converter has an integrated semiconductor device. The integrated semiconductor device has a first semiconductor component and a second semiconductor component coupled in parallel. ... Monolithic Power Systems Inc

09/07/17 / #20170256940

Bi-directional snapback esd protection circuit

An esd protection circuit having a discharging transistor and a body snatching circuit. The discharging transistor is electrically coupled between a first node and a second node. ... Monolithic Power Systems Inc

07/27/17 / #20170214319

Semiconductor device reducing parasitic loop inductance of system

A semiconductor device reducing parasitic loop inductance of system for the switching converter. The semiconductor device has an input voltage pin, a ground reference pin, a switching pin, and a semiconductor die, wherein the semiconductor die comprises a high-side power switch and a low-side power switch and a metal connection. ... Monolithic Power Systems Inc

07/13/17 / #20170201174

Power converter with improved load transient response and associated control method

A power converter including a load transient response control module and associated method for controller the power converter. The load transient response control module detects a deviation of an output voltage of the power converter from a desired value of the output voltage and compares the deviation with a first threshold to provide a load response control signal indicating whether load transient change occurs. ... Monolithic Power Systems Inc

07/13/17 / #20170200793

Method for forming stepped oxide on a substrate

A method for forming a steeped oxide on a substrate is described: successively forming a first pad oxide layer, a nitride layer, a second pad oxide layer and a poly layer on the substrate; etching the poly layer to have an opening for the stepped oxide region; isotropically etching the second pad oxide layer to the nitride layer through the opening to form a stepped trench; isotropically etching the nitride layer to the first pad oxide layer through the opening to expand the stepped trench; filling the stepped trench with dielectric material to form a dielectric layer; planarizing the dielectric layer; removing the poly layer; removing the second pad oxide layer; removing the nitride layer; removing the portion of the first pad oxide layer uncovered by the dielectric layer such that the remaining first pad oxide layer together the remaining dielectric layer forms the stepped oxide.. . ... Monolithic Power Systems Inc

07/06/17 / #20170194952

Oscillator with inherent comparator delay influence eliminated

An oscillator includes: a current source; a capacitor coupled between the current source and a reference ground; a first switch coupled to the capacitor in parallel; an error amplifier coupled to the capacitor and configured to generate a regulation voltage based on a reference voltage and the voltage across the capacitor; a comparator configured to compare the voltage across the capacitor with the regulation voltage and generate a comparison signal; and a one-shot circuit coupled to the comparator, wherein based on the comparison signal, the one-shot circuit generates a trigger signal to control the first switch.. . ... Monolithic Power Systems Inc

06/29/17 / #20170187298

Isolated switching converter with optocoupler and secondary control circuit thereof

An isolated switching converter includes a transformer, a primary circuit, a rectifying circuit and an optocoupler with a photo-sensitive device and a light emitting device, wherein the light emitting device has a first terminal coupled to an output voltage of the switching converter. A method for controlling the switching converter includes: sensing the output voltage and generating a voltage feedback signal; generating an error amplifying signal based on a reference signal and the voltage feedback signal, and providing the error amplifying signal to a second terminal of the light emitting device; disconnecting the error amplifying signal from the second terminal of the light emitting device if the error amplifying signal becomes lower than a first threshold voltage; and reconnecting the error amplifying signal to the second terminal of the light emitting device when the voltage reference signal becomes lower than a second threshold voltage.. ... Monolithic Power Systems Inc

06/29/17 / #20170187290

Constant on-time control method used in buck-boost converters

A control method used in a four-switch buck-boost converter includes: sensing the output voltage and generating a feedback signal; generating a compensation signal based on a reference signal and the feedback signal; sensing the current flowing through the inductor and generating a current sensing signal; comparing the current sensing signal with the compensation signal; turning on the first and third transistors and turning off the second and fourth transistors when the current sensing signal reduces to be lower than the compensation signal; turning off the first transistor and turning on the second transistor when the on-time of the first transistor in one switching period reaches a first time threshold; and turning off the third transistor and turning on the fourth transistor when the on-time of the third transistor reaches a second time threshold.. . ... Monolithic Power Systems Inc

06/29/17 / #20170187282

Constant on-time switching converters with ultrasonic mode and control methods thereof

A constant on-time switching converter includes a switching circuit, a comparing circuit, a mode determination circuit, an on-time control circuit and a logic circuit. The switching circuit has a first switch and converts an input voltage into an output voltage. ... Monolithic Power Systems Inc

06/29/17 / #20170187214

Buck-boost battery charging circuit, control circuit and associated control method

A battery charging circuit has a first switching circuit and a second switching circuit coupled in parallel between an input port and a node, a first switch coupled between the node and a system ground, a second switch coupled between the node and an output port, and a control circuit. When an input voltage is higher than a system voltage, the control circuit controls the first switching circuit and the second switching circuit turned on and off with interleaving, the first switch maintains off and the second switch maintains on. ... Monolithic Power Systems Inc

06/29/17 / #20170187213

Battery charging circuit with high capacity, control circuit and associated control method

A battery charging circuit has a first switching circuit and a second switching circuit which are coupled in parallel. A control circuit has a plurality of feedback control loops, a logic integrated circuit, a first logic circuit and a second logic circuit, wherein the plurality of feedback control loops provides a plurality of feedback control signals, the logic integrated circuit provides a logic integrated signal based on the plurality of feedback control signals, the frequency dividing circuit provides a first frequency dividing signal and a second frequency dividing signal based on the logic integrated signal, the first logic circuit controls the first switching circuit based on the first frequency dividing signal and a first duration signal, the second logic circuit controls the second switching circuit based on the second frequency dividing signal and a second duration signal.. ... Monolithic Power Systems Inc

06/29/17 / #20170186648

Bipolar junction semiconductor device and method for manufacturing thereof

A bipolar junction semiconductor device and associated method of manufacturing, the bipolar junction semiconductor device has a p type substrate, a n type buried layer formed in the substrate, a p− type first epitaxial layer formed on the buried layer, a p− type second epitaxial layer formed on the first epitaxial layer, a pnp bjt unit formed in the first and second epitaxial layers at a first active area, a npn bjt unit formed in the first and second epitaxial layers at a second active area and a first isolation structure of n type formed in the first and second epitaxial layers at an isolation area. The isolation area is located between the first active area and the second active area, the first isolation structure connected with the buried layer forms an isolation barrier.. ... Monolithic Power Systems Inc

06/22/17 / #20170179714

Esd protection circuit with false triggering prevention

An esd protection circuit used to protect a protected circuit coupled between a first node and a second node against an esd event. The esd protection circuit has a discharging circuit and a control circuit. ... Monolithic Power Systems Inc

06/22/17 / #20170179059

Semiconductor device having conductive bump with improved reliability

The present disclosure discloses a semiconductor device having conductive bumps formed on a conductive redistribution layer and associated method for manufacturing. The semiconductor device may further include a first type shallow trench formed on a passivation layer overlying a semiconductor substrate. ... Monolithic Power Systems Inc

06/15/17 / #20170170714

Multi-phase voltage converter with fault instruction circuit

A switching circuit with a fault instruction circuit used in a voltage converter or a multi-phase voltage converter. The switching circuit has a pin, the pin is configured to receive a control signal during a normal operation, and the pin is also configured to output a fault instruction signal when one or more faults occur in the switching circuit. ... Monolithic Power Systems Inc

06/15/17 / #20170170655

Monolithic integrated circuit switch device with output current balancing for parallel-connection

An electrical circuit includes a monolithic integrated circuit (ic) switch device that includes a first pin, a second pin, and a power switch that connects the first pin to the second pin through the power switch when the electrical circuit is turned on. The monolithic ic switch device includes an adaptive safe operating area (soa) circuit that limits allowable current through the power switch based on temperature, such as the temperature of the power switch.. ... Monolithic Power Systems Inc

06/15/17 / #20170170312

High voltage dmos and the method for forming thereof

A high voltage dmos device using conventional silicon bcd (bipolar cmos dmos) technology has a p-type buried layer and an n-type buried layer, a first epitaxial layer and a second epitaxial layer. The high voltage dmos device is characterized in high breakdown voltage, good robustness and low ron through controlling the thickness of the epitaxial layers, the dose and forming energy of the buried layers. ... Monolithic Power Systems Inc

06/01/17 / #20170154684

Voltage control circuit for memory cell and the method thereof

A voltage control circuit for a memory cell having a floating gate transistor and a capacitive device, comprising a first input terminal, a second input terminal, a first output terminal and a second input terminal, wherein the first input terminal is configured to receive a power supply voltage, the second input terminal is configured to receive a ground reference, and wherein based on the power supply voltage and the ground reference, the first output terminal and the second output terminal respectively provides a first voltage signal and a second voltage signal, and wherein a voltage value of the first voltage signal is twice the power supply voltage, and a maximum of a voltage difference between the first voltage signal and the second voltage signal is three times the power supply voltage.. . ... Monolithic Power Systems Inc

05/18/17 / #20170141680

Dc-dc converter with transient control and the method thereof

The present invention discloses a dc-dc converter with constant on time control. The dc-dc converter includes a transient unit to obtain the transient information of a current flowing through a power switching circuit, to slow down the variation of the output voltage, so as to eliminate the overshot issue.. ... Monolithic Power Systems Inc

05/11/17 / #20170133919

Dual-phase dc-dc converter with phase lock-up and the method thereof

The present invention discloses a dual-phase dc-dc converter with phase lock. The dual-phase dc-dc converter effectively controls the phase difference between the two power switching circuits by generating a square wave signal in response to logical control signals which are used to control the power switching circuits, so as to bring the phase difference between the two power switching circuits back to 180 degrees if there is derivation.. ... Monolithic Power Systems Inc

05/04/17 / #20170126129

Boost converter and the method thereof

A boost converter having an inductor having a first terminal coupled to an input port to receive the input voltage; a high side switch coupled between the inductor and an output port; a low side switch coupled between the inductor and a ground reference; and a control circuit configured to receive a feedback signal indicative of the output voltage and a reference signal, and to provide a high side control signal and a low side control signal based on the feedback signal and the reference signal; wherein the low side switch on time period is controlled to be constant by the low side control signal when the input voltage and the output voltage are fixed.. . ... Monolithic Power Systems Inc

05/04/17 / #20170126128

Boost converter and the method thereof

A boost converter having an inductor having a first terminal coupled to an input port to receive the input voltage; a high side switch coupled between the inductor and an output port; a low side switch coupled between the inductor and a ground reference; and a control circuit configured to receive a feedback signal indicative of the output voltage and a reference signal, and to provide a high side control signal and a low side control signal based on the feedback signal and the reference signal; wherein the low side switch on time period is controlled to be constant by the low side control signal.. . ... Monolithic Power Systems Inc

04/20/17 / #20170110973

Control method and circuit for resonant converters with capacitive protection

Control method and circuit for resonant converters with capacitive protection. When a resonant converter enters into a capacitive mode, a high-side switch and a low-side switch of the resonant converter are turned off. ... Monolithic Power Systems Inc

03/30/17 / #20170093296

Resonant converter with capacitive mode control and associated control method

A control circuit used for controlling a resonant converter. The control circuit has a setting capacitor, n up thresholds and n low thresholds. ... Monolithic Power Systems Inc

03/23/17 / #20170085185

Frequency jittering control circuit and the method thereof

A control method of frequency jittering with a switching mode power supply, comprising: turning on and off a power switch of the switching mode power supply alternatively; updating a peak current signal of the switching mode power supply at a beginning of an on time of the power switch according to a length of a switching period before the beginning of the on time of the power switch, wherein the peak current signal varies as the length of the switching period changes.. . ... Monolithic Power Systems Inc

03/23/17 / #20170084404

Ac switch circuit and associated control method

An ac switch circuit coupled between an ac input signal and an ac load has a first switch, a second switch, a driving circuit, and a power generation circuit. The first switch blocks a first half-cycle of the ac input signal when turned off, and the second switch blocks a second half-cycle of the ac input signal when turned off. ... Monolithic Power Systems Inc

03/23/17 / #20170083649

Digitally calibrated voltage regulators for power management

A computer provides a graphical user interface for displaying a virtual representation of a voltage regulator and for accepting a user requirement for the voltage regulator. The computer automatically determines an internal calibration setting of the voltage regulator that meets the user requirement. ... Monolithic Power Systems Inc

03/16/17 / #20170074680

Magnetic angular sensing system with side-shaft mounted sensor and the method thereof

A magnetic angular sensing system has a magnet magnetized radially and a magnetic angular sensor for sensing the angular position of the magnet. The magnetic angular sensor is mounted in parallel to the axis of the magnet and is non-coplanar with the magnet. ... Monolithic Power Systems Inc

03/09/17 / #20170070148

Constant on-time switching converter with reference voltage adjusting circuit and controller thereof

A cot switching converter includes a switching circuit having a main switch, an on-time control circuit configured to generate an on-time control signal, a comparing circuit, a logic circuit and a reference voltage adjusting circuit. The comparing circuit compares a reference voltage with a feedback signal indicative of output voltage of the switching circuit to generate a comparison signal. ... Monolithic Power Systems Inc

01/05/17 / #20170005571

Current balance circuit and the method thereof

A current balance circuit for a power management device having a first current channel and a second current channel, having: a first current sense circuit configured to detect a current flowing through the first current channel, and to provide a first current sense signal indicative of the current flowing through the first current channel; wherein the current balance circuit draws current from the second current channel to the first current channel based on the first current sense signal.. . ... Monolithic Power Systems Inc








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