Magnachip Semiconductor, Inc.

Younggi Ryu

Zhi Yuan Cui

Sang Hoon Jung

Taeyoung Park

Inho Hwang

A reference signal generating circuit is provided that generates a reference signal corresponding to an input signal for power factor compensation of a power converter. The reference signal generating circuit includes a detector sampling the input signal according to a reference clock to detect and hold the maximum input signal and a phase measuring unit measuring a phase of the sampled input signal based on the sampled input signal and the detected maximum input signal. The circuit also includes a reference signal generating unit configured to generate a reference signal having a specific value in response to the measured phase.

Reference signal generating circuit and method using a sampled input signal and a reference clock signal, and power factor compensation apparatus having the same

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Seoul, South Korea

Younggi Ryu