218 patents
Page 3 of 11
Utility
Asymmetrical Plug Technique for Gan Devices
22 Dec 22
A method of forming one or more contact regions in a high-voltage field effect transistor (HFET) includes providing a semiconductor material, including a first active layer and a second active layer, with a gate dielectric disposed on a surface of the semiconductor material.
Alexey Kudymov, LinLin Liu, Jamal Ramdani
Filed: 25 May 22
Utility
Discharge Prevention of the Power Switch In a Power Converter
15 Dec 22
A power converter including a controller to control a synchronous rectifier (SR) switch.
MUNADIR A. AHMED, ADITYA J. KULKARNI
Filed: 12 Dec 19
Utility
Protecting Semiconductor Switches In Switched Mode Power Converters
8 Dec 22
Driver circuitry for driving a power semiconductor switch having a control input and main terminals is described.
Jan THALHEIM
Filed: 18 May 22
Utility
Apparatus and methods for sensing resonant circuit signals to enhance control in a resonant converter
6 Dec 22
Apparatus and methods for sensing resonant circuit signals to enhance control in a resonant converter are described herein.
Robert J. Mayell, Hartley Fred Horwitz, Frank Joseph Schulz, Roger Colbeck
Filed: 7 Jul 20
Utility
Reservoir capacitor for boost converters
22 Nov 22
A power supply comprising a first-stage capacitor configured to provide energy to a second stage power converter.
David Michael Hugh Matthews, Balu Balakrishnan
Filed: 27 Mar 20
Utility
Core Assemblies for Magnetic Saturation Detector without Requirement for DC Bias
10 Nov 22
Magnetic core assemblies include a skewing feature that introduces transverse components into the power flux density vector are disclosed herein.
WILLIAM M. POLIVKA, FATEMEH-SOHILA HAMDAD
Filed: 17 Aug 20
Utility
Pulse sharing control for enhancing performance in a multiple output power converter system
8 Nov 22
Pulse sharing control to enhance performance in multiple output power converters is described herein.
Yi Li, Antonius Jacobus Johannes Werner, David Michael Hugh Matthews
Filed: 18 Nov 20
Utility
Modulating jitter frequency as switching frequency approaches jitter frequency
1 Nov 22
A method for providing a jitter signal for modulating a switching frequency of a power switch for a power converter.
Giao Minh Pham, Lance M. Wong
Filed: 2 Jul 21
Utility
Multi zone secondary burst modulation for resonant converters
18 Oct 22
A power converter controller includes a control loop clock generator to generate a switching frequency signal responsive to a burst load threshold, a power signal, and a load signal.
Robert J. Mayell, Yueming Wang, Roger Colbeck
Filed: 30 Jun 21
Utility
Multi-stage gate turn-off with dynamic timing
11 Oct 22
A turn-off circuit for a semiconductor switch includes an element having a variable resistance coupled to a control input of the semiconductor switch, a circuit for generating a control-input reference signal, and a control circuit coupled to adjust a resistance of the element having a variable resistance in response to the control-input reference signal in a closed control loop in order to turn off the semiconductor switch.
Jan Thalheim
Filed: 30 Apr 20
Utility
Magnetic Saturation Detector with Single and Multiple Transverse Windings
29 Sep 22
Magnetic saturation detectors for power converters are presented herein.
WILLIAM M. POLIVKA
Filed: 17 Aug 20
Utility
Energy Transfer Element Including a Communication Element
29 Sep 22
An energy transfer element that provides galvanic isolation in a power controller is disclosed herein.
WILLIAM M. POLIVKA
Filed: 17 Aug 20
Utility
Active clamp circuit with steering network
20 Sep 22
A power converter, comprising an energy transfer element, an output of the power converter, a power switch, an active clamp circuit, and a first controller.
Arthur B. Odell
Filed: 22 Feb 21
Utility
Multiple stage gate drive for cascode current sensing
13 Sep 22
A power converter comprising an energy transfer element is coupled between an input of the power converter and an output of the power converter.
Rajko Duvnjak
Filed: 12 Jan 21
Utility
Power converter with current matching
13 Sep 22
A current matching circuit includes a plurality of LED driver circuits.
John David Greenwood
Filed: 5 Nov 20
Utility
Variable drive strength in response to a power converter operating condition
6 Sep 22
A controller for a power converter comprising a drive signal generator and drive strength control and a variable strength multi-stage gate driver.
Rajko Duvnjak
Filed: 22 Dec 20
Utility
Capacitance Networks for Enhancing High Voltage Operation of a High Electron Mobility Transistor and Method Therein
18 Aug 22
Capacitance networks for enhancing high voltage operation of high electron mobility transistors (HEMTs) are presented herein.
KUO-CHANG YANG, SORIN GEORGESCU, ALEXEY KUDYMOV, KAMAL VARADARAJAN
Filed: 24 Jun 20
Utility
Active Discharge of an Electric Drive System
18 Aug 22
An electric drive system for a vehicle includes an inverter having at least one phase leg, wherein a first of the phase legs includes a first power switch; an internal voltage supply configured to generate an internal supply voltage regulated with respect to a voltage on a rail and a second voltage, wherein the internal voltage supply is configured to reduce a voltage difference between the internal supply voltage and the second voltage in response to a signal indicating a shut-down or a fault; and a gate drive channel configured to drive the first power switch into conductance by applying the voltage difference between the internal supply voltage and the second voltage between a control terminal and a main terminal of the power switch, gate drive channel configured to continue the driving of the first power switch for a time duration after the signal indicating the shut-down or the fault.
ANDREAS VOLKE, CHRISTOPH DUSTERT
Filed: 21 Jan 22
Utility
Active Discharge of an Electric Drive System
18 Aug 22
Systems, devices, and methods for active discharge of an electric drive system for a vehicle includes an inverter having at least one phase leg, wherein a first of the phase legs includes a first power switch, a dc/dc converter configured to generate an internal supply voltage that is regulated with respect to a voltage on a rail , and a gate drive channel configured to drive the first power switch into conductance by applying a relatively high voltage difference during operation of the vehicle and to continue the driving of the first power switch with a relatively lower voltage difference after a signal indicating shut-down or fault.
ANDREAS VOLKE, VINZENZ MAURER, SALEM ABID, DOUGLAS ARNOLD ERIK ANDERSSON HAGGLUND, MICHAEL HORNKAMP, MATTHIAS PETER
Filed: 4 Feb 22
Utility
Auxiliary converter to provide operating power for a controller
16 Aug 22
An auxiliary converter coupled to an output of a main power converter comprising an auxiliary switch, a timing circuit, and an energy transfer element.
Arthur B. Odell, Munadir Aziz Ahmed
Filed: 14 Feb 20