Inventor

KWONG KWOK KUEN DAVID

US27 patents

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

KWONG KWOK KUEN DAVID

HK APPLIED SCIENCE & TECH RES

Low dropout voltage regulator with programmable on-chip output voltage for mixed signal embedded applications

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

Hybrid analog-to-digital converter (ADC) with binary-weighted-capacitor sampling array and a sub-sampling charge-redistributing array for sub-voltage generation

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

Low voltage high-output-driving CMOS voltage reference with temperature compensation

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)

Current-mode-controlled current sensor circuit for power switching converter

LED driver with small output ripple without requiring a high-voltage primary-side electrolytic capacitor

Quad-array diode-less RF-to-DC rectifying charge-pump converter for energy harvesting

Serial multi-battery charger with independent simultaneous charge and discharge

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

KWONG KWOK KUEN DAVID

ESD power clamp using a low-voltage transistor to clamp a high-voltage supply in a mixed-voltage chip

ESD protection using a capacitivly-coupled clamp for protecting low-voltage core transistors from high-voltage outputs

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

Self-starting transistor-only full-wave rectifier for on-chip AC-DC conversion

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

Current-switching LED driver using DAC to ramp bypass currents to accelerate switching speed and reduce ripple

LEUNG LAP CHI DAVID

Bootstrapped high-side driver control without static DC current for driving a motor bridge circuit

Optical black-level cancellation for optical sensors using open-loop sample calibration amplifier

CHAN KWAI CHI

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

KUANG XIAO FEI

Bi-directional trimming methods and circuits for a precise band-gap reference

NG CHIK WAI DAVID

Constant-current control module using inverter filter multiplier for off-line current-mode primary-side sense isolated flyback converter

LEUNG CHI TAK GERRY

Programmable electro-magnetic-interference (EMI) reduction with enhanced noise immunity and process tolerance

HONG KONG APPLIED SCIENCE & TECH RES INST COMPANY LTD

Differential temperature sensor with sensitivity set by current-mirror and resistor ratios without limiting DC bias

WONG CHUN FAI

CMOS temperature sensor with sensitivity set by current-mirror and resistor ratios without limiting DC bias