Signal process method, signal process circuit and LED dimming circuit thereof
In one embodiment, method of signal processing can include: (i) determining a high level sampling pulse amount by counting a number of pulses of a first clock signal during a high level portion of a period of a first PWM; (ii) generating a first pulse signal based on a second clock signal and the high level sampling pulse amount; (iii) determining a low level sampling pulse amount by counting a number of pulses of the first clock signal during a low level portion of the period of the first PWM signal; (iv) generating a second pulse signal based on the second clock signal and the low level sampling pulse amount; and (v) generating a second PWM signal based on the first and second pulse signals.
Silergy Semiconductor Technology (Hangzhou) Ltd.
Y H Y
Y02B H05B Y02B
additional inventional additional
Huiqiang Yunlong
Chen Han