使用UC3525做电压可调的PWM 控制器, 同相端(2脚)输入参考电压(0-3.3V)输入。
在测试时发现输入0.65V以下的电压时, UC3525只带的误差放大器不工作。是否跟UC3525内部误差放大器的原理, 还是其他没有注意到;
麻烦各位!
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