Three-channel colored lamp staggered edge modulation circuit

The embodiment of the invention discloses a three-channel colored lamp wrong edge modulation circuit. The modulation circuit comprises a PWM clock counter and a PWM wrong edge modulation time sequence control circuit, wherein the PWM clock counter is used for carrying out counting on a PWM clock; the PWM wrong edge modulation time sequence control circuit comprises a first time sequence control circuit, a second time sequence control circuit and a third time sequence control circuit, and is used for respectively carrying out time sequence logic combination operation according to input signals so as to respectively output PWM signals of a first channel, PWM signals of a second channel and PWM signals of a third channel. 本发明的一个实施例公开了一种三通道彩灯错沿调制电路，所述调制电路包括：PWM时钟计数器和PWM错沿调制时序控制电路；其中，所述PWM时钟计数器，用于对PWM时钟进行计数；所述PWM错沿调制时序控制电路，包括第一时序控制电路、第二时序控制电路和第三时序控制电路，用于根据输入信号分别进行时序逻辑组合运算，进而分别输出第一通道的PWM信号、第二通道的PWM信号和第三通道的PWM信号。