100W Mosfet Power Amplifier Circuit

Published:2011/7/1 3:12:00 Author:Joyce | Keyword: Mosfet, power amplifier | From:SeekIC

MOSFET power amplifier circuit is mainly used in high-power AV circuits. As shown in the figure is the 100 W MOSFET power amplifier circuit. The input stage of the circuit uses JEFT input op-amp TL071, which has a high input impedance and conversion rate. VT1 and VT3 are complementary constant current source loads of op-amp TL071. VT4 and VT5 compose a typical driver stage, and it has a good linearity and fast response. The output stage VT6 and VT7 use MOSFET tube. They have beautiful timbre and the amplification factor is 5. C1 uses metallized polypropylene capacitor to avoid distortion.



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