设计了具体的LED光源的驱动电路，以及前置放大器、减法器等的具体电路。
Have designed the concrete drive circuit of LED light sources and the concrete circuits of preamplifier and subtracter, etc.
设计了具体的LED光源的驱动电路，以及前置放大器、减法器等的具体电路。
Have designed the concrete drive circuit of LED light sources and the concrete circuits of preamplifier and subtracter, etc.
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