| 摘要 |
The circuit for adjusting RGB signal selectively by controlling voltage of emitters of a number of drive Tr. includes a key input circuit(30) inputting R,G,and B signal selectively to control respective drive state, a RGB controller(40) generating PWM control signal for adjusting respective drive state of RGB, and an integration circuit(50) providing integrated PWM signal to control respective drive intensity of RGB signal driven by a number of Trs.(Q1-3).
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