Inventor

CHOI HANGSEOK

KR52 patents

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

CHOI HANGSEOK

SAMSUNG ELECTRONICS CO LTD

Electronic device for charging multiple batteries

3-level-inverting buck-boost converter and control method thereof

Electronic device comprising display, and operation method thereor

Electronic device for charging battery based on voltage of interface and method for controlling same

Electronic device and method for controlling recharge of battery

Electronic device including power supply circuit

Electronic device including power supply circuit

Method and apparatus for diagnosing electronic apparatus

Wireless power receiving apparatus for carrying out in-band communication with wireless power transmitting apparatus and method for carrying out in-band communication in wireless power receiving apparatus

PWM method for wireless charging system

Electronic device including resonant charging circuit

Electronic device including resonant charging circuit

Wireless communication device and method of operating the same

Wireless communication device and method of operating the same

Electronic device and method of operating the same

Electronic device comprising boost circuit, and method for controlling same electronic device

Overcurrent protection device of power supply and operating method thereof

Electronic device having voltage divider adaptively changing voltage division ratio

Method and electronic device for controlling voltage output to external electronic device according to size of voltage detected at signal terminal connected to external electronic device

FAIRCHILD SEMICONDUCTOR

Power factor correction circuit and method

Self-tuning adaptive dead time control for continuous conduction mode and discontinuous conduction mode operation of a flyback converter

Gate pre-positioning for fast turn-off of synchronous rectifier

Control of a startup circuit using a feedback pin of a PWM controller integrated circuit chip

Power supply with near valley switching

Adaptive overvoltage protection for adaptive power adapters

Power supply with near valley switching in near valley window time period

Power factor correction circuit and method

Adaptive turn-off trigger blanking for synchronous rectification

Adaptive turn-off trigger blanking for synchronous rectification

CHOI HANGSEOK

Phase management for interleaved power factor correction

Method and apparatus for bridgeless power factor correction

Cable voltage drop compensation for battery chargers

Current mode control for resonant converter circuits

Hybrid control techniques for series resonant converter

Sampled charge control for resonant converter

Synchronous rectifier control techniques for a resonant converter

Continuous conduction mode power factor correction circuit with reduced sensing requirements

Soft-start control techniques for a switched-mode power supply

SEMICONDUCTOR COMPONENTS IND LLC

Automatic control of synchronous rectifier turn-off threshold

System and method for controlling power converter with adaptive turn-on delay

Automatic control of synchronous rectifier turn-off threshold

System and method for controlling voltage control loop in power converter

Power factor correction circuit with calculated duty compensation and driving method thereof

Power limit protection for resonant power converter

FAIRCHILD KOREA SEMICONDUCTOR LTD

Short-circuit protection using pulse width modulation (PWM) for resonant converters

Burst mode control in resonant converters

Non zero-voltage switching (ZVS) detection in resonant converters

System and method for controlling voltage control loop in power converter

Resonant capacitor stabilizer in resonant converters

Power factor correction circuit with calculated duty compensation and driving method thereof