Inventor

CHOI HANG-SEOK

US51 patents

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

CHOI HANG-SEOK

FAIRCHILD KR SEMICONDUCTOR LTD

Quasi resonant switching mode power supply

Switch mode power supply and driving method thereof

Interleaved switching converter, and switching controller and controlling method thereof

Switching mode power supply

Switching mode power supply and method for generating a bias voltage

Quasi-resonant converter and controlling method thereof

Switching mode power supply and method of operation

Overload and short protected soft-start converter

Conduction detecting circuit, rectifying switch controlling circuit including the conduction detecting circuit and power supply for the rectifying switch controlling circuit to be applied

Resonant converter with variable frequency controlled by phase comparison

Switching mode power supply and driving method thereof

Switching mode power supply and method of operation

Switch control device, switch control method, and converter using the same

Switching mode power supply and driving method thereof

Variable-mode converter control circuit and half-bridge converter having the same

Half-bridge power converter system and method of operation

FAIRCHILD KOREA SEMICONDUCTOR LTD

Switch control circuit including multipin to set dead time information and/or protection mode

Resonant converter and driving method thereof

Resonant converter and driving method thereof

Resonant converter and driving method thereof

Resonant converter and driving method thereof

Switch control circuit and resonant converter including the same

Switch control circuit and resonant converter including the same

Protection mode control circuit, switch control circuit including the protection mode control circuit and power supply device including the switch control circuit

CHOI HANG-SEOK

Synchronous rectifier

Resonant converter

Converter and driving method thereof

Converter and driving method thereof

Device for preparing bio-oil, system for preparing bio-oil and method for preparing bio-oil using the same

SEMICONDUCTOR COMPONENTS IND LLC

Alternating valley switching for power converter

Switch control circuit including multipin to set dead time information and/or protection mode

Resonant converter and driving method thereof

Alternating valley switching for power converter

Dead time compensation for synchronous rectifiers in adaptive output powers

SAMSUNG ELECTRONICS CO LTD

Wireless communication device

Method and apparatus for changing impedance of terminal included in connector

Reader receivers and reader transceivers including the same

Receiver of NFC device and NFC device including the same

MOON SANG-CHEOL

Switch control device and converter including the same

Power converter, switching control device thereof, and driving method thereof

Power converter, and switching controller and driving method thereof

KIM JIN-TAE

Switch controller, switch control method, converter using the same, and driving method thereof

Switch controller of a converter with a soft start signal generator comprising a plurality of current sources

HYUNSUNG CO LTD

Logistics device, logistics control system, and theft prevention method of the same

Logistics smart label, smart box and logistics system including the same

FAIRCHILD SEMICONDUCTOR

Resonant converter control techniques to manage negative SR current

PARK YOUNG-BAE

Switch control device and converter including the same

SONG IL JONG

Voltage adjusting circuit, contactless card and contactless card system having the same, and methods of operating the voltage adjusting circuit and the contactless card

LIN TIEN-CHI

Method and apparatus for controlling resonant power converter

KIM IN HYUK

Auto gain controllers, and communication terminals having the same