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DLPC7540EVM: RGB三色灯的电流调整以及占空比调整

Part Number: DLPC7540EVM


根据TIDM564的参考原理图,REB_EN使能开关激光,PWM_RGB调节输出电流的幅值大小,SDIM_IN_RGB是调节方波占空比大小。

DLPC7540EVM只输出了REB_EN和PWM_RGB,那么DLPC7540EVM是怎么控制RGB驱动板调整电流幅值、频率周期和占空比的?