Single Phase Automatic Voltage Stabilizer Circuit Diagram

Automatic voltage stabilizer circuit diagram 2.

Single phase automatic voltage stabilizer circuit diagram.

Circuit diagram of static voltage stabilizer. A 5v dc input is used to power the microcontroller. When there is any variation in the input supply the control circuit increases or decreases the voltage on the primary of buck boost. Schematic diagram of automatic voltage stabilizer 3 2 v 0 v 2 4 v 1 2 v 4 7 0 r v c c 1 2 v 3 3 r n o n c 2 2 0 0 u 3 3 u 0.

Of this automatic voltage stabilizer is 7kva single phase and its frequency range is 50hz. The output sensitivity is 1. The output voltage from the stabilizer will stay in the range of 220v or 230v in case of single phase supply and 380v or 400v in case of three phase supply within given fluctuating range of input voltage. Servo voltage stabilizer comprises of a buck boost transformer a motor driven variable transformer and a control circuit.

Referring to the figure we find that the proposed automatic voltage stabilizer circuit is configured with the single opamp ic 741 it becomes the control section of the whole design the opamp is wired as a comparator we all know how well this mode suits the ic 741 and other opamps it s two inputs are suitable rigged for the said operations. For the microcontroller circuit we use an external crystal of 4 mhz. 1 2 2 0 u 1 n 4 0 0 7 1 n 4 0 0 7 r 1 5 r 4 3 z d 3 c 6 c 7 c 8 c 1 7 d 6 d 7 d 8 2 k 7 1. How the circuit functions.

This is required because there is no internal crystal present in pic 16f873a.