Fairchild Korea Semiconductor Ltd.

Semiconductor Components Industries, LLC

Moon Sik Song

Youngjong Kim

Kuo-Hsien Huang

Hyunchul Eum

Chih-Chun Chuang

Moon Ho Choi

Young Mo Yang

Young Je Lee

A phase-cut dimming control system according to the embodiment includes a phase angle detector configured to detect a phase angle of an input voltage generated by phase-cut dimming, a feedback signal generator configured to generate a first reference signal corresponding to the detected phase angle, and generate an initial feedback signal based on a detection signal corresponding to power supplied to a load and the first reference signal, a feedback signal modulator configured to modulate the initial feedback signal and generate a feedback signal, a power transmission controller configured to generate a control signal which controls power transmission according to the feedback signal, and a power transmission circuit configured to transmit power to the load according to the control signal.

Control system for phase-cut dimming

Provided is a standby current supplier including a bleeding circuit electrically connected to a dimmer and through which a first current flowing to the dimmer flows when the dimmer is in an off state, and a first controller configured to detect a first voltage corresponding to an input voltage generated by the dimmer and control the bleeding circuit based on the first voltage when the first voltage is lower than a predetermined first level.

Standby current supplier

Growing community of inventors

Bucheon, South Korea

Moon Sik Song