Inventor

CHENG WING LING

HK24 patents

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

CHENG WING LING

ASTEC INT LTD

Adaptive pulse width modulated resonant Class-D converter

Adapter with retractable cable assembly and electrical plug assembly

Topology-independent synchronous rectifier commutation circuit

Low inductance high current connector for improved power supply system

Power converter with degraded component alarm

Adapter with manually retractable cable assembly and electrical plug assembly

Method of operating a resonant push-pull converter in an above resonant frequency mode

Health monitoring for power converter capacitors

Health monitoring for power converter components

Power supplies and methods for reducing common mode noise

Power supply with reliable voltage feedback control independent of any ground voltage difference

Fast transition power supply

Air ventilation cooling systems for a portable power device

EDGE ELECTRONS LTD

High frequency series AC voltage regulator

System and method for high efficiency power quality correction

Energy saving high frequency series buck AC voltage regulator system

Method and apparatus to solve PFC capacitor reduction of line AFLC ripple without passive filters

Fast response active reactive power (KVAR) compensator

HU ZONG BO

Control circuits and methods for controlling switching devices

Control circuits and methods for controlling switching devices

LEE TAI KEUNG

Multiple resonant converter apparatus and control method

(unassigned)

Power supply system for high density printed circuit boards

POWER QUALITY ENGINEERING LTD

High frequency series AC voltage regulator

CHENG WING LING

Power supplies responsive to multiple control signal formats