djnik1362
Full Member level 2
hi everyone
I have a problem with my audio power amplifier circuit :
![out_amp.PNG out_amp.PNG](https://www.edaboard.com/data/attachments/61/61304-01dca6901c69940c03831fa20b6f5f79.jpg)
As you see in this schematic there is 470u capacitor and 100k resistor in output stage.
When i power this circuit for the first time the capacitor is fully discharged and the circuit works fine.
But if i reset the power it takes about 2 minutes to work again and i think it's all about output stage.
It is possible that input signal is not enough to reject charged DC in capacitor.
Load speakers are 3W and 4 ohm.
Can you help me to fix this problem ?
Thanks.
I have a problem with my audio power amplifier circuit :
![out_amp.PNG out_amp.PNG](https://www.edaboard.com/data/attachments/61/61304-01dca6901c69940c03831fa20b6f5f79.jpg)
As you see in this schematic there is 470u capacitor and 100k resistor in output stage.
When i power this circuit for the first time the capacitor is fully discharged and the circuit works fine.
But if i reset the power it takes about 2 minutes to work again and i think it's all about output stage.
It is possible that input signal is not enough to reject charged DC in capacitor.
Load speakers are 3W and 4 ohm.
Can you help me to fix this problem ?
Thanks.