modified 6 years ago

Usilitel zvuka

01:22:44

Usilitel

published 6 years ago

avid0g

6 years ago

Base bias resistors of 600 ohms will drive the 8 ohm load. To avoid such high bias current, consider a NPN/PNP and PNP/NPN output stage. Each half acts like a class D amplifier, so there will be some crossover distortion. The op-amp will need to be in the feedback loop.

avid0g

6 years ago

Using current sources of 20 mA for the base bias will also work.

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