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线性可调光

Other Parts Discussed in Thread: LM3643

求大神能不能推荐一款程控电压源芯片,输出电压0-6V ,电流可达1.2A    不能用PWM来调节,我用在摄像机补光灯上用的,我用PWM调节的时候人眼是不闪烁的,但是在相机里面会显示闪烁。能发电路图更好