Richtek Technology Corporation

Chih-Tai Cheng

Pei-Yuan Chen

Chi-Hsiu Lin

The present invention discloses a light emitting device power supply circuit, a light emitting device control circuit and an identifiable light emitting device circuit therefor, and an identification method thereof. The light emitting device control circuit includes an operation signal generation circuit and an identification circuit. The operation signal generation circuit determines whether the light emitting device control circuit operates in an identified mode or amiss mode according to an enable signal. In the identified mode, the light emitting device control circuit operates a power stage circuit to supply an output current to an identifiable light emitting device circuit. In the miss mode, an output voltage is maintained at a predetermined level. The identification circuit determines whether the light emitting device control circuit switches from the miss mode to the identified mode according to whether the output voltage meets a condition.

Light emitting device power supply circuit, light emitting device control circuit and identifiable light emitting device circuit therefor and identification method thereof

Growing community of inventors

Taipei, Taiwan

Chih-Tai Cheng