# A symmetrical power supply circuit (multiple output)

A symmetrical power supply circuit (double output). A symmetrical power supply is a power supply capable of providing symmetrical output that is opposite to ground

Where the positive voltage value is higher than ground whereas negative voltage value is lower than ground

A series of symmetrical power supplies is often required on amplifiers, computers, vcd, dvds, and so on

## A symmetrical power supply circuit (multiple output)

Symmetrical power supply can be created using either a CT or Non CT transformer, a bridge diode or a kiprok, and 2 Elco pieces

If the transformer used to build a symmetrical power supply is a Non CT transformer then the circuit that can be made is a half wave power supply circuit

Meanwhile, if the transformer used is a transformer type of CT then the resulting circuit is a full wave symmetrical power supply circuit

The chase is a symmetrical half-wave power supply from a Non CT transformer A full-wave symmetrical power supply circuit from a CT type transformer ## How the symmetrical power supply circuit works

Suppose you build a symmetrical power supply full wave with AC 12V input voltage then with the resulting output is positive voltage (+ 12V), neutral voltage (0V) or ground, and negative voltage (-12V)

• between positive and neutral points there is a potential difference of 12V
• between the neutral point and the negative point there is a potential difference of 12V
• between positive and negative points there is a potential difference of 24V

Generally symmetrical power supply only drains current from positive pole to neutral or from neutral to negative pole and not from positive pole to negative pole

### Power supply is symmetrical on the amplifier

A symmetrical power supply on the amplifier is taken because the loud speaker needs an AC current to emit a sound

At the amplifier end of the amplifier there are 2 pieces of transistors are normally the type 2N3055 and MJ2955