Other Parts Discussed in Thread: LM258A
使用 lm258A 作为差分放大器进行电流检测。 运算放大器增益大于计算值。
对于24A、2 m Ω、
Vd = 0.048、增益= 20
VOUT = 0.048*20=0.96V。
但在实际情况下、输出电压为3V @ 24A。
所有电阻器均为1%容差。请查找所连接的电路
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