Samsung Electro-mechanics Co., Ltd.

Sungkyunkwan University

University of Seoul Industry Cooperation Foundation

Silicon Mitus, Inc.

Jung Yeon Kim

Kang Yoon Lee

Young Jun Park

Seong Jin Oh

Hyung Gu Park

Jong Woo Lee

Je Hyuk Ryu

Hong Jin Kim

Byung Joo Hong

Joong Ho Choi

Keum Cheol Hwang

Youngoo Yang

Ju Hyun Park

Byeong Gi Jang

Sang Yun Kim

Han Suk Seo

Ho Jun Shin

Ii Kwon Jang

Kwang Muk Choi

A method of charging a battery by a charging system comprising a master charging circuit and N (N is a natural number) slave charging circuits. The method includes: sourcing a first current to a single-wired bus by the master charging circuit; absorbing (sinking) a second current from the single-wired bus by the N slave charging circuits connected to the single-wired bus; identifying a single-wired bus voltage formed on the single-wired bus at a particular time point by the master charging circuit; and identifying the number of slave charging circuits based on the single-wired bus voltage by the master charging circuit.

Multi-configurable switch mode charging system, charging circuit, and charging method

Disclosed herein is an active rectifier. The rectifier includes a rectifier unit, a driver unit, and a switching device control circuit unit. The rectifier unit includes first and fourth transistors configured to become conductive when the voltage of an alternating current (AC) input is negative and apply the current of the AC input to a rectifier capacitor, and second and third transistors configured to become conductive when the voltage of the AC input is positive and apply the current of the AC input to the rectifier capacitor. The driver unit outputs first to fourth drive control signals, and drives the first to fourth transistors. The switching device control circuit unit compares the first drive control signal and the second drive control signal with the AC input, and outputs switching device control signals to delay the first to fourth drive control signals based on the extents to delay.

Active rectifier capable of preventing reverse leakage current

A rectifier includes: a rectifying circuit configured to rectify alternating current (AC) power into direct current (DC) power through a switching operation; a driver configured to apply a switching signal to the rectifying circuit; and a signal modulator configured to select a parameter from among parameters of the switching signal based on a frequency of the switching signal, and adjust the selected parameter.

Rectifier and method of controlling the same

Growing community of inventors

Suwon-si, South Korea

Jung Yeon Kim