Inventor

WAN HO MING KAREN

HK17 patents

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

WAN HO MING KAREN

HK APPLIED SCIENCE & TECH RES

Dual-use comparator/op amp for use as both a successive-approximation ADC and DAC

Multi-stage comparator with offset canceling capacitor across secondary differential inputs for high-speed low-gain compare and high-gain auto-zeroing

Low-voltage oscillator with capacitor-ratio selectable duty cycle

Zero-delay buffer with common-mode equalizer for input and feedback differential clocks into a phase-locked loop (PLL)

Digitally-programmable gain amplifier with direct-charge transfer and offset cancellation

Fuse cell and method for programming the same

Single-power-transistor battery-charging circuit using voltage-boosted clock

Slew-rate-enhanced error amp with adaptive transconductance and single dominant pole shared by main and auxiliary amps

HONG KONG APPLIED SCIENCE & TECH RES INST COMPANY LTD

Asynchronous successive-approximation-register analog-to-digital converter (SAR ADC) in synchronized system

Self-powered and battery-assisted CMOS wireless bio-sensing IC platform

Low-headroom constant current source for high-current applications

WAN HO MING KAREN

Configurable cascading sigma delta analog-to digital converter (ADC) for adjusting power and performance

Reduced residual offset sigma delta analog-to-digital converter (ADC) with chopper timing at end of integrating phase before trailing edge

KWONG KWOK KUEN DAVID

Diode-less full-wave rectifier for low-power on-chip AC-DC conversion

Single-power-transistor battery-charging circuit using voltage-boosted clock

WAN KAM CHUEN

Charge compensation calibration for high resolution data converter

CHAN KWAI CHI

Ultra low voltage multi-stage high-speed CMOS comparator with autozeroing