Inventor

CHANG TSUNG-HAU

TW22 patents

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

CHANG TSUNG-HAU

NOVATEK MICROELECTRONICS CORP

LED device with simultaneous open and short detection function and method thereof

Rail-to-rail operational amplifier capable of reducing current consumption

Driving circuit of display apparatus and driving method thereof

Driving circuit and method for driving current-driven devices

Driving apparatus of light emitting diode and driving method thereof

Digital to analog converter with high driving capability

LED device, LED driving circuit and method

Capacitance decreasing scheme for operational amplifier

Oscillator circuit

HSU KUO-CHING

Driving apparatus of light emitting diode and driving method thereof

Driving apparatus of light emitting diode and driving method thereof

Driving apparatus of light emitting diode and driving method thereof

Light source driving device capable of dynamically keeping constant current sink and related method

Control method capable of preventing flicker effect and light emitting device thereof

LED device and method for preventing soft-start flicker

Frequency generator

CHANG TSUNG-HAU

Circuit and method for generating reference voltage and reference current

Light emitting diode driving apparatus and method for holding driving voltage thereof

Current driver, electronic device and current driving method

Light source apparatus and driving circuit thereof

YANG HSING-CHIEN

LED device, LED driving circuit and method

CHIEN FENG-WEI

Driving circuit and method for driving current-driven devices and electronic device applying the same