Hergy International Corp.

Cheng-Jen Lee

Yen-Lin Chen

Chun-Hung Lu

A circuit protection apparatus () is used to protect an LED drive circuit (), and the circuit protection apparatus () includes a first switch unit () and a snubber circuit (). The first switch unit () provides an electrical connection between an input terminal (A) and the LED drive circuit () according to the normality of an input current (Iin) flowing through the input terminal (A). The snubber circuit () provides a first delay time period (Td) according to an input power (Vin). The snubber circuit () provides a start signal (Ss) to the LED drive circuit () according to the end of the first delay time period (Td), and controls a first ground point (G) of the snubber circuit () to be coupled to a second ground point (G) of the LED drive circuit ().

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Taipei, Taiwan

Cheng-Jen Lee