LM380 split power supply circuit diagram electronic project

Posted on Feb 6, 2014

A very simple split power supply circuit project can be designed using this schematic diagram which is based on a LM380 audio power IC. The regulation of the output voltage depends of the upon circuit feeding the LM380. The power dissipation is around 1 watt so an small heatsink may be required. If the power dissipation is exceeded, the device

LM380 split power supply circuit diagram electronic project
Click here to download the full size of the above Circuit.

will go into thermal shut-down protection. Current limiting occurs if the output current exceeds 1. 3 A. The R1 linear potentiometer is, should be initially set to mid level, is used nullify any imbalance in the output. This split power supply circuit should not be used for input voltages which exceed 20 volts. Use this circuit after a regulated power supply circuit, but try to keep the specifications for the maximum rating of this split voltage circuit.

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