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Power Integrations Inc patents


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

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


Load responsive jitter

A controller for use in a power converter that includes a current limit generator coupled to receive a feedback signal representative of an output of the power converter and generate an initial current limit signal. The controller includes a modulation circuit coupled to output a modulation signal which is a percentage of the initial current limit signal. ... Power Integrations Inc

Magnetically coupled galvanically isolated communication using lead frame

An integrated circuit package includes an encapsulation and a lead frame. A portion of the lead frame is disposed within the encapsulation. ... Power Integrations Inc

Single pin mosfet drive and discharge functionality

A circuit for use with a universal serial bus (usb) socket includes a power converter coupled to receive an input voltage at an input terminal and coupled to provide an output voltage at an output terminal. A transistor is coupled between the output terminal of the power converter and a bus voltage terminal of the usb socket. ... Power Integrations Inc

Communicating across galvanic isolation, for example, in a power converter

A signal transmission system for communicating across galvanic isolation includes a magnetic coupling having a transmitter-side inductor and a receiver-side inductor. The transmitter is coupled to the transmitter-side inductor, is referenced to a first potential, and includes a pulse generator coupled to output to the transmitter-side inductor a first state representation that represents a first logic state with multiple transitions, and a second state representation that represents a second logic state with multiple transitions. ... Power Integrations Inc

Electronic circuit for fast temperature sensing of a power switching device

An electronic circuit for sensing a temperature rise in a power transistor device, the temperature rise caused by a current flow in the power transistor device. The power transistor device and a sense-fet are disposed on a substrate. ... Power Integrations Inc

Controller for multi-output single magnetic component converter with independent regulation of constant current and constant voltage outputs

A power converter includes a primary winding and multiple output windings to provide multiple independently controlled and regulated outputs with a common return line. The outputs are coupled to independently regulate constant current, constant voltage, or both constant current and constant voltage outputs. ... Power Integrations Inc

Method and apparatus for sensing multiple voltage values from a single terminal of a power converter controller

A method for regulating an output of a power converter includes receiving a signal from an auxiliary winding of an energy transfer element of the power converter. The energy transfer element includes an input winding coupled to an input of the power converter, an output winding coupled to the output of the power converter, and the auxiliary winding. ... Power Integrations Inc

Paralleling power switches using a differential mode choke in the gate drive loop

In one aspect, a device includes a first power switch having a first gate, a second power switch paralleled with the first power switch and having a second gate, a gate driver to output a gate drive signal to drive both the first gate and the second gate, a first conduction path to couple the gate drive signal to the first gate, a second conduction path to couple the gate drive signal to the second gate, and a distribution choke to distribute the gate drive signal to the first and second power switches. The distribution choke has a first winding disposed in the first conduction path and a second winding disposed in the second conduction path. ... Power Integrations Inc

Half-bridge inverter modules with advanced protection through high-side to low-side control block communication

A communication system for use in a switching module includes a low-side control block coupled to control switching of a low-side switch of the switching module. The low-side control block is further coupled to be referenced with a low-side reference system ground. ... Power Integrations Inc

Reduction of audible noise in a power converter

A controller includes a drive circuit that generates a drive signal to switch a power switch to control a transfer of energy to of a power converter output in response to a current sense signal, a feedback signal, and a current limit signal. A current limit generator generates the current limit signal in response to a load coupled to the output. ... Power Integrations Inc

Hybrid boost-bypass function in two-stage converter

A controller for use in a two-stage power supply is coupled to control switching of a switching element to regulate a transfer of energy from an input to an output of a flyback converter. The controller activates a boost switching element during a first interval in each line half cycle of an input voltage to boost an output voltage at an output of a boost-bypass converter. ... Power Integrations Inc

Switched mode power converter controller with ramp time modulation with jitter frequency

A controller for use in a power converter includes a drive circuit coupled to generate a drive signal to control switching of a power switch to control a transfer of energy from a power converter input to a power converter output. An input is also included to receive an enable signal including enable events responsive to the power converter output. ... Power Integrations Inc

Modulating jitter frequency as switching frequency approaches jitter frequency

A controller for use in a power converter includes a jitter generator circuit coupled to receive a drive signal from a switch controller and generate a jitter signal. The switch controller is coupled to a power switch coupled to an energy transfer element. ... Power Integrations Inc

Vertical transistor device structure with cylindrically-shaped field plates

A vertical power transistor device includes a semiconductor layer of a first conductivity type, with a plurality of dielectric regions disposed in the semiconductor layer. The dielectric regions extend in a vertical direction from a top surface of the semiconductor layer downward. ... Power Integrations Inc

03/01/18 / #20180061947

High voltage vertical semiconductor device with multiple silicon pillars in a racetrack arrangement

A semiconductor device including a dummy pillar and a plurality of racetrack pillars. The dummy pillar of semiconductor material extends in a first lateral direction. ... Power Integrations Inc

02/15/18 / #20180048238

Switched mode power converter controller with ramp time modulation

A power converter includes an energy transfer element that includes a primary winding and a secondary winding, and is coupled to transfer energy between the primary winding and the secondary winding. An enable circuit is coupled to generate an enable signal in response to a feedback signal falling below a threshold. ... Power Integrations Inc

02/08/18 / #20180040570

Noise cancellation for a magnetically coupled communication link utilizing a lead frame

An integrated circuit package includes a portion of a lead frame disposed within an encapsulation. The lead frame includes a first conductor including a first conductive loop and a third conductive loop disposed substantially within the encapsulation. ... Power Integrations Inc

01/25/18 / #20180026542

Method and apparatus for a control circuit with multiple operating modes

A method for controlling a power converter switch includes operating the power converter switch in first, second, and third duty cycle control modes in response to a feedback signal representative of an output of the power converter. The first duty cycle control mode includes modulating a peak switch current of the power converter switch in response to the feedback signal, and switching the power converter switch at a substantially fixed first switching frequency value. ... Power Integrations Inc

01/25/18 / #20180026126

Heterostructure power transistor with alsin passivation layer

A heterostructure semiconductor device includes a first active layer and a second active layer disposed on the first active layer. A two-dimensional electron gas layer is formed between the first and second active layers. ... Power Integrations Inc

12/28/17 / #20170373722

Receiver circuit

An analog receiver frontend includes a first amplification circuit coupled to receive an input signal. The first amplification stage is coupled to amplify a difference between the input signal and a threshold to generate the first signal. ... Power Integrations Inc

12/28/17 / #20170373683

Control circuit and control method for turning on a power semiconductor switch

A control circuit for turning on a power semiconductor switch includes an input that receives a signal characterizing a switch-on behavior of the power semiconductor switch. A phase detection circuit detects two or more phases of the switch-on behavior of the power semiconductor switch in response to the signal that characterizes the switch-on behavior of the power semiconductor switch. ... Power Integrations Inc

12/28/17 / #20170373589

Introducing jitter to a switching frequency by way of modulating current limit

A controller includes a switch controller coupled to a power switch coupled to an energy transfer element. The switch controller is coupled to receive a current sense signal representative of a drain current through the power switch. ... Power Integrations Inc

12/14/17 / #20170358992

Method and apparatus for implementing an unregulated dormant mode with an event counter in a power converter

A method for controlling an output of a power converter with a control circuit includes generating a drive signal to control switching of a switch to regulate the output of the power converter. It is detected if a switching period of one switching cycle of the drive signal exceeds a threshold switching period. ... Power Integrations Inc

12/14/17 / #20170358989

Power supply with power factor correction and output-referenced energy reservoir

An ac-dc power supply includes a dc-dc converter coupled to an input of the ac-dc power supply. The input of the ac-dc power supply is coupled to receive an ac input voltage and an ac input current. ... Power Integrations Inc

11/23/17 / #20170338745

Techniques for controlling a power converter using multiple controllers

A power converter controller includes a primary controller configured to operate in a first mode to control a power switch with a primary switching pattern. A communication link is coupled to the primary controller. ... Power Integrations Inc

11/16/17 / #20170328934

Integrated linear current sense circuitry for semiconductor transistor devices

An integrated circuit (ic) for sensing a current flowing through a transistor device includes a substrate and a current scaling circuit that includes first and second mosfet devices. The first mosfet device has a drain coupled to the switched fet at a first node and a source coupled to the substrate. ... Power Integrations Inc

10/26/17 / #20170310225

Output-side controller with switching request at relaxation ring extremum

A method for regulating a power converter includes initiating a transition of a switch coupled to an input side of the power converter from an off to an on state to regulate a transfer of energy from the input to an output side of the power converter after a switch control signal generator receives an enable signal and if a feedback signal representative of an output of the power converter indicates a change in an output of the power converter. The enable signal is generated to communicate a control signal from the output to the input side in response to a first signal representative of a voltage on an output terminal that oscillates in response to an ending of the transfer of energy. ... Power Integrations Inc

10/12/17 / #20170294907

Soft shutdown modular circuitry for power semiconductor switches

Circuitry for soft shutdown of a power switch and a power converters that includes circuitry for soft shutdown are described. In one aspect, circuitry for soft shutdown of a power switch includes a sense input to be coupled to a power switch receive a signal representative of current passing through the power switch, a comparator to compare the signal with an overcurrent threshold indicative of an overcurrent condition of the power switch and to output a triggering signal in response to the comparison indicating the overcurrent condition, and a gating transistor to be coupled to a control terminal of the power switch, the gating transistor configured to divert a portion of a drive signal away from the control terminal of the power switch in response to the triggering signal.. ... Power Integrations Inc

10/12/17 / #20170294532

Protective insulator for hfet devices

A high-voltage field effect transistor a heterojunction is disposed between the first and second semiconductor material. A first composite passivation layer includes a first insulation layer and a first passivation layer, and a second composite passivation layer includes a second insulation layer and a second passivation layer. ... Power Integrations Inc

08/31/17 / #20170250614

Reduction of audible noise in a power converter

A controller for use in a power converter includes a drive circuit coupled to generate a drive signal to control switching of a power switch of the power converter in response to a feedback signal to control a transfer of energy from an input to an output of the power converter. An audible noise window circuit is coupled to generate a frequency skip signal in response to the feedback signal. ... Power Integrations Inc

08/31/17 / #20170250613

Reduction of audible noise in a power converter

A power converter controller includes a drive circuit that generates a drive signal to switch a power switch to control a transfer of energy to an output of the power converter in response to a current sense signal, a feedback signal, and a current limit signal. A current limit generator generates the current limit signal in response to a load coupled to the output. ... Power Integrations Inc

08/31/17 / #20170250144

Static discharge system

A semiconductor circuit includes a three-terminal high voltage semiconductor device, a charge distribution structure and a static discharge system. The charge distribution structure has a plurality of conductors with a floating potential. ... Power Integrations Inc

07/20/17 / #20170207711

Power converter controller utilizing external resistor for programming operating paramater during startup

A controller for use in a power converter includes an initialization circuit coupled to a sense terminal coupled to an external resistor to receive a sense voltage from external resistor during a startup mode of the power converter. The sense terminal is coupled to sense an output current of the power converter after the startup mode of the power converter is complete. ... Power Integrations Inc

07/06/17 / #20170194870

Transformer communication system

A power converter includes a transformer coupled to transfer power from a primary side of the power converter to a secondary side of the power converter. The transformer includes a primary side winding coupled to receive power from a primary side input of the power converter and a secondary side winding coupled to provide power to a secondary side output of the power converter. ... Power Integrations Inc

06/29/17 / #20170187367

Device and method for producing a dynamic reference signal for a driver circuit for a semiconductor power switch

A device (442) for producing a dynamic reference signal (uref) for a control circuit for a power semiconductor switch comprises a reference signal generator (442) for providing a dynamic reference signal (uref), which has a stationary signal level after elapse of a predefined time following a switching process of the power semiconductor switch, a passive charging circuit (450) which is configured to increase a signal level of the dynamic reference signal in reaction to a switching of a control signal of the power semiconductor switch from an off state to on state for at least one part of the predefined time above the stationary signal level, in order to produce the dynamic reference signal and an output (a) for tapping the dynamic reference signal (uref).. . ... Power Integrations Inc

06/22/17 / #20170179810

Storage time control

A controller for use in a power converter includes a first terminal to provide a turn on signal to initiate turning on of a power switch and a second terminal to provide a turn off signal to initiate turning off the power switch. A detection circuit is coupled to detect a turn off time delay. ... Power Integrations Inc

06/22/17 / #20170179273

Switching device with charge distribution structure

A semiconductor device includes a substrate and a first active layer disposed over the substrate. The semiconductor device also includes a second active layer disposed on the first active layer such that a lateral conductive channel arises between the first active layer and the second active layer a source, gate and drain contact are disposed over the second active layer. ... Power Integrations Inc

06/08/17 / #20170163164

Energy transfer element with capacitor compensated cancellation and balance shield windings

Energy transfer element circuitry for use in a power converter includes a cancellation shield winding wound around an energy transfer element core. A first trimming capacitor is coupled to a first end of the cancellation shield winding to adjust a shield response of the cancellation shield winding. ... Power Integrations Inc

04/27/17 / #20170117811

Programming controller parameters through external terminals of a power converter

A method of operating a power converter includes applying a first signal sequence to one or more terminals of the power converter to unlock a controller of the power converter and cause the controller to enter a programming mode, applying a second signal sequence to the one or more terminals of the power converter to program a controller parameter of the power converter, and applying a third signal sequence to the one or more terminals to lock the controller of the power converter and cause the power converter to enter a locked mode. The one or more terminals of the power converter includes one or more input terminals of the power converter that converter are adapted to be coupled to a programmable ac or dc supply, or one or more output terminals of the power converter that are adapted to be coupled to a programmable electronic load.. ... Power Integrations Inc

04/27/17 / #20170117091

Power converter transformer with reduced leakage inductance

A transformer for use in a power converter includes a first winding including a plurality of layers wound around a magnetic core. A first exclusionary winding is wound around the magnetic core forming a first exclusionary winding layer. ... Power Integrations Inc

04/13/17 / #20170104482

Cascode switches including normally-off and normally-on devices and circuits comprising the switches

Switches comprising a normally-off semiconductor device and a normally-on semiconductor device in cascode arrangement are described. The switches include a capacitor connected between the gate of the normally-on device and the source of the normally-off device. ... Power Integrations Inc

04/13/17 / #20170104077

Switching device with charge distribution structure

A semiconductor device includes a substrate and a first active layer disposed over the substrate. The semiconductor device also includes a second active layer disposed on the first active layer such that a lateral conductive channel arises between the first active layer and the second active layer. ... Power Integrations Inc

04/06/17 / #20170098704

Shield wrap for a heterostructure field effect transistor

Devices are disclosed for providing heterojunction field effect transistor (hfets) having improved performance and/or reduced noise generation. A gate electrode is over a portion of the active region and is configured to modulate a conduction channel in the active region of an hfet. ... Power Integrations Inc

03/30/17 / #20170093387

Field-effect transistor device with partial finger current sensing fets

A lateral semiconductor field-effect transistor (fet) device fabricated on a substrate includes a high-voltage main fet having interdigitated, elongated source and drain electrode fingers each of which is electrically connected to a respective interdigitated, elongated source and drain region disposed in the substrate. The fet device further includes first and second sense fets each having a drain region in common with the high-voltage main fet. ... Power Integrations Inc

03/23/17 / #20170085191

Limit-to-valley ratio circuitry in power converters

A controller for a switched mode power converter includes limit-to-valley ratio circuitry, an on-time generator, and a drive circuit. The limit-to-valley ratio circuitry is coupled to generate a ratio signal in response to sensing a switch current of a switch that regulates an output of the switched mode power converter. ... Power Integrations Inc

03/23/17 / #20170085182

Demand-controlled, low standby power linear shunt regulator

A shunt regulator for use in a power converter having an energy transfer element for regulating a transfer energy of the output signal delivered to the load. An auxiliary winding of the energy transfer element being utilized to produce an internal bypass voltage, vbp, at a bypass pin coupled to an external capacitive load, the shunt regulator including a two-mode operational amplifier that produces an output signal that controls a shunt current through the shunt switch. ... Power Integrations Inc

03/16/17 / #20170077826

Bjt driver with dynamic adjustment of storage time versus input line voltage variations

A controller for a power converter includes a driver circuit that generates a control signal to switch a power switch in response to an output, and a control circuit that controls the switching of the power switch. The control circuit includes a storage time reference circuit generates a storage time reference signal responsive to an input. ... Power Integrations Inc

03/16/17 / #20170077824

Method and apparatus for sensing multiple voltage values from a single terminal of a power converter controller

A method for regulating an output of a power converter includes receiving a signal at a single terminal of an integrated circuit controller. The signal at the single terminal represents a line input voltage of the power converter during at least a portion of an on time of a power switch. ... Power Integrations Inc

03/16/17 / #20170077818

Hybrid boost-bypass function in two-stage converter

A boost-bypass converter includes a boost inductor coupled between an input and an output of the boost-bypass converter. A bypass diode is coupled between the input the output of the boost-bypass converter. ... Power Integrations Inc

03/09/17 / #20170070142

Input and output overvoltage protection in a power converter

A controller for use in a power converter includes a gate drive circuit coupled to generate a control signal to switch a power switch of the power converter. A zero current detection circuit is coupled to a multifunction pin coupled to receive a multifunction signal that is representative of an input voltage of the power converter when the power switch is on, and representative of an output voltage of the power converter when the power switch is off. ... Power Integrations Inc

03/02/17 / #20170063214

Auxiliary recharge

A charging circuit supplies charge to a charge store to provide power to a controller of a power converter. The power converter includes an inductive component having a winding coupled to receive power from an input to the power converter. ... Power Integrations Inc

02/09/17 / #20170040900

Input frequency measurement

A frequency determination circuit includes a positive crossing sense circuit coupled to receive an input voltage to sense a positive crossing of an input voltage. A validation circuit is coupled to the positive crossing sense circuit to validate a previous zero crossing and the positive crossing of the input voltage after the positive crossing of the of the input voltage has occurred. ... Power Integrations Inc

02/09/17 / #20170040883

Reverse current blockage through buck controller block

A switching circuit with reverse current prevention for use in a buck converter includes a power switch coupled to a coupling node, which is an interconnection point of a power switch, an inductor and a freewheeling diode of the buck converter. The inductor is coupled between the coupling node and an output of the buck converter, and the freewheeling diode is coupled between coupling node and an output return of the buck converter. ... Power Integrations Inc

02/02/17 / #20170034882

Line voltage compensation ac led driving device

Disclosed is a line voltage compensation ac led driving device. The line voltage compensation ac led driving device comprises a line voltage compensation module and an ac led driving module. ... Power Integrations Inc

02/02/17 / #20170033603

Communicating across galvanic isolation

Signal transmission circuitry comprises a conductive transmitting coil, a first power supply, a semiconductor switch to reversibly couple the transmitting coil to the first power supply, control circuitry to control the coupling of the transmitting coil to the first power supply by the semiconductor switch, a second power supply coupled to supply power to the control circuitry.. . ... Power Integrations Inc

01/26/17 / #20170025959

Method and apparatus for digital control of a switching regulator

A circuit for regulating an output level of a power converter includes an adjustment circuit to be coupled to a receive a feedback signal representative of an output level of the power converter. The adjustment circuit is coupled to generate a comparison result signal. ... Power Integrations Inc

01/12/17 / #20170012672

Receiver circuit

A data communications receiver including a receiver coil, a first amplification stage coupled to the receiver coil, the first amplification circuitry to differentially amplify at least part of signal received by the receiver coil relative to a threshold, a second amplification stage coupled to receive the differentially amplified signal from the first amplification stage, the second amplification stage comprising a current mirror, and hysteretic level shifting circuitry to shift a level of part of the signal received by the receiver coil, the threshold or part of the signal received by the receiver coil and the threshold such that, in response to the at least part of the signal received by the receiver coil having crossed the threshold, a threshold crossing in the other direction is delayed.. . ... Power Integrations Inc

01/12/17 / #20170012622

Communicating across galvanic isolation, for example, in a power converter

A signal transmission system for communicating across galvanic isolation. The signal transmission system includes first circuitry referenced to a first potential, the first circuitry comprising signal transmission circuitry, second circuitry referenced to a second potential and galvanically isolated from the first circuitry, the second circuitry comprising signal reception circuitry, and a magnetic coupling between the first circuitry to the second circuitry across the galvanic isolation, the magnetic coupling comprising a transmitter-side inductor and a receiver-side inductor. ... Power Integrations Inc

01/12/17 / #20170012543

Controller ic with zero-crossing detector and capacitor discharge switching element

An integrated circuit (ic) for controlling the discharge of a capacitor coupled across first and second input terminals of a power converter circuit, wherein the first and second terminals for receiving an ac line voltage. The ic includes a switching element coupled across the first and second input terminals and a detector circuit. ... Power Integrations Inc








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