Inventor

LIU YAN-FEI

CA76 patents

⚠️ This page may combine multiple inventors who share the name “LIU YAN-FEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LIU YAN-FEI

UNIV KINGSTON

Resonant gate drive circuits

Non-isolated DC-DC converters with direct primary to load current

Ripple cancellation converter with high power factor

Resonant gate drive circuits

Resonant gate drive circuit with centre-tapped transformer

Non-isolated DC-DC converters with direct primary to load current

Resonant power converters and control methods for wide input and output voltage ranges

Primary side controlled LED driver with ripple cancellation

Energy channelling single stage power converter

Multi-stage multilevel DC-DC step-down converter

Three-phase single-stage soft-switching AC-DC converter with power factor correction

Power converter controlled capacitor circuits and methods

Power converter controlled capacitor circuits and methods

High voltage start-up circuit for switching power supplies

Circuits and methods using power supply output voltage to power a primary side auxiliary circuit

Power converter topologies and control methods for wide input and output voltage ranges

Power cycle modulation control for power converters

MURATA MANUFACTURING CO

Modular parallel technique for resonant converter

Simplified hybrid PWM/PFM control method for SLLC converter

Converters with hold-up operation

120-Hz ripple reduction with PIR controller for LLC converter

POTENTIA SEMICONDUCTOR INC

DC converters

Power supply controller

Signal and power transformer coupling arrangements

WANG HONGLIANG

Half bridge inverter units and inverter thereof

Five-level inverter topology with high voltage utilization ratio

Hybrid modulation strategy for multilevel inverters

ASTEC INT LTD

Topology and control method for power factor correction

Asymmetrical pulse width modulated resonant DC-DC converter with compensating circuitry

IWATT INC

Parallel current mode control using a direct duty cycle algorithm with low computational requirements to perform power factor correction

Parallel current mode control using a direct duty cycle algorithm with low computational requirements to perform power factor correction

QUEEN'S UNIV AT KINGSTON

Ripple cancellation converter with high power factor

Biomechanical electrical power generation apparatus

MAO HENGCHUN

High efficiency power regulator and method

Dual frequency control of buck-boost regulator with a pass through band

CHEN YANG

Hybrid full bridge-voltage doubler rectifier and single stage LLC converter thereof

Hybrid full bridge-voltage doubler rectifier and single stage LLC converter thereof

CIENA CORP

Apparatus and method of controlling low frequency load currents drawn from a DC source in a telecommunications system

QUEEN S UNIVERISTY AT KINGSTON

DC-DC converter with improved dynamic response

NORTEL NETWORKS CORP

Flyback converter with soft switching using auxiliary switch and resonant circuit

GANPOWER INT INC

Interleaved resonant converter

ZHANG ZHILIANG

Current-source gate driver

MING MING

Storage-stable heat-activated tertiary amine catalysts for epoxy resins

ORR RAYMOND K

Distributed power supply arrangement

LI ZHANMING

High-side gate driver for gallium nitride integrated circuits

DOW GLOBAL TECHNOLOGIES LLC

Storage-stable heat-activated tertiary amine catalysts for epoxy resins

MAGNA INT INC

Method and system for balancing multi-phase LLC power converter with switch-controlled capacitors

LIU TIANSHU

Two-phase three-level converter and controller therefor

POWER INTEGRATIONS INC

Distributed power supply arrangement

HUAWEI DIGITAL POWER TECH CO LTD

High efficiency power regulator and method