Low power audio amplifier


Posted on Aug 9, 2012

The amplifier operates from supplies ranging up to 12 volts, and operates (with reduced volume) from supply voltages as low as 1.8 volts without having distortion rise to unacceptable levels. (Its power requirements make it suitable for solar-cell application.) Components external to the integrated circuit, Ul, consist of four capacitors and a potentiometer for volume control.


Low power audio amplifier
Click here to download the full size of the above Circuit.

Capacitor C3 is for decoupling, low-frequency roll-off, and power-supply ripple rejection. Capacitor C4 is an electrolytic type that couples the audio output to an 8 to 32 ohm speaker that is efficient.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Power supply monitor
Polarity converter
Quiz Circuit
5v regulator circuit using lm105
DQPSK Pi4DemodSync
12v 5a power supply using lm338
Tube tester
Water Meter Monitor
high voltage low current supply circuit diagram
Using an external transistor ten-band equalizer
Energy-saving lamp circuit



Top