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

Half-wave rectifier
Basic-track-and-hold-sample-and-hold
series robot circuit
The audio analyzer based on LPC2148 designs
inverter circuit diagram
Sinewave Oscillator
Photoreceiving circuit diagram LM307 amplifier configuration
Improve power supply rejection ratio PSR circuit diagram ISO124
Boost has a frequency characteristic of automatic offset MAX630 power conversion
The Q value of the variable notch filter



Top