Monday, September 26, 2016

Dual Symmetrical Power Supply for Audio Amp

This Dual Symmetrical Power Supply is Perfect for powering up an audio amplifier or crossover filter etc. Power supply circuit just need four rectifier diodes and four electrolytic capacitors. There is also provision for six optional capacitors for reducing RF emissions. All these items are very easy and cheap. Power supply circuit schematic:
Dual Symmetrical Power Supply for Audio Amp
Recommended components:
C5,C6,C7,C8 = 2200uF 50V electrolytic capacitors.
C1,C2,C3,C4, = 100nF 50V ceramic capacitors.
C9,C10 =  10nF 50V capacitors.
D1.D2.D3.D4 = 1N5401 rectifier diodes.

PCB Layout Design Dual Symmetrical Power Supply for Audio Amp
pcb power supply amplifier

kit pcb power supply amplifier
You will need a dual-output transformer, maximum 2 x 25V to power the board. Because mains electricity is involved, we recommend this pcb and components is assembled by qualified DIYers only. Also for your safety, we recommend the PCB and transformer are installed in a secure enclosure. You can use this Power Supply circuit for power amplifier listing here :

Electronic Circuit is a good site for hobbyist also who would like to try DIY because it shared good circuits. If you have a personalized circuit requirement you may feel free to request it through the comment box or contact me.


EmoticonEmoticon