《AN-116 Use the LM158/LM258/LM358 Dual, Single Supply Op Amp》

The output load to negative supply forces the amplifier to source some minimum current at all times, thus eliminating crossover distortion. Crossover distortion without this load would be more severe than that expected with the normal op amp. Since the single supply design took notice of this normal load connection to ground, a class AB output stage was not included.

R could also be returned to the positive supply with the advantage that V max would never exceed (V + – LoS
1.5V). Then with ±15V supplies RL MIN would be 0.12 RF.



【 在 zhycircle 的大作中提到: 】
: 请教大家，这个Rb  6.2k电阻的作用，不加可以吗，谢谢。
--
FROM 114.254.10.*