工具与软件:
您好!
这是我根据 LM4950设计的原理图和 PCB 布局。
左:
右侧:
SE 模式输入、输入电压 VPP 约为10V、反馈增益为1、但我左右通道的输出电阻温升不同。左侧输出反馈电阻器(R48、R49)的温升约为50度、而右侧输出反馈电阻器(R122、R123)的温升接近80度。 为什么会这样呢?
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