Silicon Works Co., Ltd.

Sun Geon Yoo

Sung Hwan Kim

Ju Pyo Hong

Ju Hyun Lee

Hai Feng Jin

Wanyuan Qu

Se Won Lee

Byeong Ho Jeong

Joo Wan Ha

A lamp control device includes a converter configured to provide an output voltage and an internal voltage; a lamp including an LED module which has a plurality of LED channels, and configured to emit light in correspondence to the output voltage of the converter; and a controller configured to operate by using the internal voltage of the converter, control the output voltage of the converter to be retained at a level equal to or higher than a predetermined level, by using feedback voltages of the plurality of LED channels, and control channel currents of the plurality of LED channels to be regulated in correspondence to memory values which are set in advance.

Lamp control device

A lamp control device includes a lamp including an LED module which has a plurality of LED channels; and a controller configured to detect respective feedback voltages of the plurality of LED channels, and determine, when at least any one feedback voltage among the feedback voltages is retained to be lower than a predetermined reference voltage and a generation count of an over voltage protection signal reaches a predetermined reference count, an LED channel corresponding to the feedback voltage, as an open.

Growing community of inventors

Cheongju-si, South Korea

Sun Geon Yoo