Unregulated Split Power Supply for Audio Amplifier






Unregulated Split Power Supply for Audio Amplifier

This is the unregulated Split power supply circuit, intended to supply the hi-fi audio amplifier. This power supply circuit is very simple, and no great skill is needed to assemble this circuit.

There are a few things one should be careful with, such as the routing of high current leads, but these are easily accomplished. The design diagram of this power supply is very simple. A 4 ampere fuse is used to secure the transformer and two LEDs at the end of this circuit are used to indicate power state On and Off. At the output there are 6 capacitors used, you can reduce the quantity of these filter capacitors to 2 or according to your own choice, but do not reduce the value of the capacitors too much because the lower value of capacitor can increase the "hum" sound of the amplifier.

About Power Supply
A power supply is a device that supplies electrical energy to one or more electric loads. The term of "power supply" is most commonly applied to devices that convert one form of electrical energy to another, though it may also refer to devices that convert another form of energy (e.g., mechanical, chemical, solar) to electrical energy.
A power supply may be implemented as a discrete, stand-alone device or as an integral device that is hardwired to its load. In the latter case, for example, low voltage DC power supplies are commonly integrated with their loads in devices such as computers and household electronics. More explanation about power supply can be found at wikipedia.org

This is the tutorial about "How to build an AC to DC power supply ". The video tutorial covers the basics of diodes, bridge rectifiers, and how to build simple unregulated AC to DC power supplies than can handle a few mA up to several Amps.

Watch the video:

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