Author Topic: Linear power amplifier configuration  (Read 361 times)

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Offline ricko_ukTopic starter

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Linear power amplifier configuration
« on: June 10, 2020, 04:56:36 pm »
Hi,
I have an audio input signal coming in from either a signal generator or a line-level audio source (MP3 player etc). It then needs to be sometimes amplified and sometimes attenuated. The output then needs to be able to drive various transducers: sometimes speakers and sometimes custom linear actuators (inductive types).

I only have single supply on the PCB so I came up with the attached schematic.

The output sometimes needs to be AC coupled and sometimes it needs to ride on top of a DC offset that is half of the supply voltage. That is the reason for the jumper at the output.

Is that a good way to do it?

Thank you :)
« Last Edit: June 11, 2020, 02:44:07 pm by ricko_uk »
 


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