Simple split power supply


Posted on Feb 7, 2013

This circuit utilizes the quasi-complementary output stage of the popular LM380 audio power IC. The device is internally biased so that with no input the output is held midway between the supply rails Rl, which should be initially set to mid-travel, is used to nullify any inbalance in the output. Regulation of Vout depends upon the circuit feeding the LM380, but positive and negative outputs will track accurately irrespective of input regulation and unbalanced loads


Simple split power supply
Click here to download the full size of the above Circuit.

The free-air dissipation is a little over 1 watt, and so extra cooling: may be required. The device is fully protected and will go into thermal shutdown if its rated dissipation is exceeded. Current limiting occurs if the output current exceeds 1 A. The input voltage should not exceed 20 V.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Temperature-controlling circuit
Digital-fiber-optic-receiver
Pure Sine-Wave Generator
water level sensor circuit
EL7513 led driver circuit design
Home Automation Using GSM WithCircuit
The Aurora Alarm
32kHz clock oscillator circuit
A flat tire warning circuit



Top