Step Variable Dc Supply


Posted on Jul 21, 2012

Intended as a replacement for generally poorly regulated `wall-type` ac/dc adapters, this circuit offers superior p


Step Variable Dc Supply
Click here to download the full size of the above Circuit.

erformance to simple, unregulated adapters. Voltages of 3, 6, 9, and 12 V are available. The DPDT switch serves as a polarity-reversal switch. R2 through R6 can be replaced with a 2.5-kfl pot for a variable voltage of 1 to 12 V. R7 through RIO can be replaced by a fixed resistor of about 1 kfi if the LED1 brightness variation with output voltage is not a problem.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Sound-Activated Switch
Responsive Wearable Technology
12V to 220V converter circuit
Low Power FM Transmitter
Parallel Port Relay Interface Circuit
magnet charger
Active Shortwave Antenna PCB
Active Filter Design with OpAmps
Laser Alarm
A simple way of phase locking microwave local oscillators
5 Minute Digital Clock
Triangle Wave Generator
RF VOLTMETER
Bipolar stepper motor driver circuit diagram
Two-wire RTD connection circuit diagram XTR108



Top