Kingston
Canada
76
2026-07-02
The entities that hold a legal rights for patent applications filed by inventor Liu Yan-Fei:
Yan-Fei Liu from Kingston, CA has applied for patents for these inventions. The list has both pending applications and granted patents:
Controller for Twelve-Switch Zero Inductor Voltage Converter
#2 | 2026-03-12SYSTEM AND METHODS FOR USING A MEMS SWITCH AS AN IDEAL DIODE
#3 | 2026-01-29MULTI-PHASE POWER CONVERTER CIRCUIT LAYOUT TO MINIMIZE DRIVE LOOP AND POWER LOOP INDUCTANCES
#4 | 2025-11-27Power Factor Correction with Power Balancing Control for Three-Phase Single-Stage AC-DC Converters
#5 | 2025-08-14SYSTEM AND METHODS FOR USING A MEMS SWITCH AS AN IDEAL DIODE
#6 | 2024-04-18Self-Powered Smart Switch
#7 | 2024-03-21Methods and circuits for sensing isolated power converter output voltage across the isolation barrier
#8 | 2024-01-11BATTERY CAPACITY CONTROLLER FOR MULTIPLE PORTABLE POWER STATIONS
#9 | 2024-01-04Three-Phase Rectifier with Reconfigurable Modules for Wide Output Voltage Range
#10 | 2023-12-28Control methods and apparatus for parallel operation of multiple portable power stations
#11 | 2023-04-27Variable gain modulation methods and controllers for AC-DC converter with power factor correction
#12 | 2022-11-17Methods and circuits for sensing isolated power converter output voltage across the isolation barrier
#13 | 2022-10-27Power Converter Controlled Capacitor Circuits and Methods
#14 | 2022-04-07High Voltage Gallium Nitride Field Effect Transistor
#15 | 2022-03-31METHOD AND SYSTEM USING A NOISE FILTER TO DRIVE SYNCHRONOUS RECTIFIERS OF AN LLC DC-DC CONVERTER
#16 | 2022-03-31Method and system for balancing multi-phase LLC power converter with switch-controlled capacitors
#17 | 2022-03-24DESIGN AND OPTIMIZATION OF A HIGH POWER DENSITY LOW VOLTAGE DC-DC CONVERTER FOR ELECTRIC VEHICLES
#18 | 2022-03-17Power converter with integrated multi-layer cooling
#19 | 2022-02-03Power cycle modulation control for power converters
#20 | 2021-03-11Power converter controlled capacitor circuits and methods
#21 | 2021-02-25Circuits and methods using power supply output voltage to power a primary side auxiliary circuit
#22 | 2021-02-25High voltage start-up circuit for switching power supplies
#23 | 2020-11-19Resonant power converters and control methods for wide input and output voltage ranges
#24 | 2020-11-12Packaging for lateral high voltage GaN power devices
#25 | 2020-07-23Three-phase single-stage soft-switching AC-DC converter with power factor correction
#26 | 2020-03-26Zero inductor voltage converter topology with improved switch utilization
#27 | 2020-01-02Gate drivers and voltage regulators for gallium nitride devices and integrated circuits
#28 | 2020-01-02Gate drivers and voltage regulators for gallium nitride devices and integrated circuits
#29 | 2020-01-02High efficiency power regulator and method
#30 | 2019-12-12High-side gate driver for gallium nitride integrated circuits
#31 | 2019-12-12Defect-tolerant layout and packaging for GaN power devices
#32 | 2019-08-22Line power extension for capacitor size reduction in AC-DC converters
#33 | 2019-08-08Vertical-side solder method and package for power GaN devices
#34 | 2019-07-18Power converter topologies and control methods for wide input and output voltage ranges
#35 | 2019-02-21Single-phase five-level active clamping converter unit and converter
#36 | 2018-10-25Single-phase four-level inverter circuit topology and three-phase four-level inverter circuit topology
#37 | 2018-10-25Five-level inverter topology with high voltage utilization ratio
#38 | 2018-08-30Current ripple sensing controller for a single-stage LED driver
#39 | 2018-08-30High power gallium nitride devices and structures
#40 | 2018-08-23Five-level half bridge inverter topology with high voltage utilization ratio
#41 | 2018-08-23Hybrid full bridge-voltage doubler rectifier and single stage LLC converter thereof
#42 | 2018-08-16Hybrid full bridge-voltage doubler rectifier and single stage LLC converter thereof
#43 | 2018-08-02High power gallium nitride devices and structures
#44 | 2018-04-19Power electronic and optoelectronic devices with interdigitated electrodes
#45 | 2018-03-01Hybrid modulation strategy for multilevel inverters
#46 | 2018-03-01Interleaved resonant converter
#47 | 2018-01-25Multi-stage multilevel DC-DC step-down converter
#48 | 2018-01-18Half bridge inverter units and inverter thereof
#49 | 2017-11-09Two-phase three-level converter and controller therefor
#50 | 2017-10-05Energy channelling single stage power converter
#51 | 2017-09-28High-power single-stage LED driver with bipolar ripple cancellation
#52 | 2017-08-31AVERAGE CURRENT MODULATOR FOR AN LED DRIVER
#53 | 2017-04-06Ripple cancellation converter with high power factor
#54 | 2017-03-16Primary side controlled LED driver with ripple cancellation
#55 | 2016-09-01High efficiency power regulator and method
#56 | 2015-09-03Interleaved resonant converter
#57 | 2015-01-01Biomechanical electrical power generation apparatus
#58 | 2014-09-11Ripple cancellation converter with high power factor
#59 | 2014-08-14High efficiency power regulator and method
#60 | 2013-04-18Methods and Circuits for Improving the Dynamic Response of a DC-DC Converter
#61 | 2013-02-07High efficiency power regulator and method
#62 | 2012-03-22Current Source Gate Driver with Negative Gate Voltage
#63 | 2012-03-15COMPENSATION CIRCUIT AND METHOD FOR A SYNCHRONOUS RECTIFIER DRIVER
#64 | 2011-05-05Zero-Voltage-Switching Self-Driven Full-Bridge Voltage Regulator
#65 | 2010-02-18Distributed power supply arrangement
#66 | 2010-01-28Current-source gate driver
#67 | 2008-10-23DC-DC converter with improved dynamic response
#68 | 2008-05-29Parallel current mode control using a direct duty cycle algorithm with low computational requirements to perform power factor correction
#69 | 2007-05-17Resonant gate drive circuit with centre-tapped transformer
#70 | 2007-05-10Non-isolated DC-DC converters with direct primary to load current
#71 | 2006-09-19Non-isolated DC-DC converters with direct primary to load current
#72 | 2006-08-03Resonant gate drive circuits
#73 | 2006-08-03Resonant gate drive circuits
#74 | 2005-12-27Apparatus and method of controlling low frequency load currents drawn from a DC source in a telecommunications system
#75 | 2005-12-08Parallel current mode control using a direct duty cycle algorithm with low computational requirements to perform power factor correction
#76 | 2005-02-03Isolated DC-DC converters
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