OCL power amplifier with integrated op amp driver
Source: InternetPublisher:狂妄火龙果 Keywords: Power amplifier integrated operational amplifier OCL WIDTH Updated: 2020/10/30
If the power supply of this circuit is ±15V, 10W power can be obtained from the load.
The main differences between this circuit and Example 2 are:
(a) An integrated operational amplifier is used to replace the drive circuit composed of discrete components.
(b) Use D1~D3 to set the static operating point for the quasi-complementary circuit to overcome crossover distortion.
(c) Introduce voltage series negative feedback (via R3) to stabilize the operating point and amplification factor and reduce distortion.
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