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LED驱动
- LED是2~3伏的低电压驱动,必须要设计复杂变换电路,不同用途的LED灯,要配备不同的电源适配器。(The relationship between the forward voltage drop (VF) and the positive current (IF) curve shows that when the forward voltage exceeds a certain threshold (about 2V), that is, the usual conduction vol