AC power supply circuit


Posted on Mar 28, 2007

AC power supply circuit as shown in FIG. It mainly consists of power supply, the reference voltage, the comparator voltage sampling circuit, and several other units. Mains tran


AC power supply circuit
Click here to download the full size of the above Circuit.

sformer from O, feet input,, feet autotransformer tap,, feet for the control power supply circuit and sampling taps. Mains voltage is normal, because the voltage at point C is always 3V (ie Ri vs buck regulator income). A, B point voltage greater than 3V, it J1, AJ2 output low level When the mains voltage drops,, pin voltage can be decreased, A point voltage drop also followed when the A point voltage drop low at 3V when, AJ1 output high, the transistor VT1 saturated conduction, the relay Kl warm together, the regulator output adjusted to 1,3 feet; when the mains voltage continues to drop while, empathy voltage at point B below 3V (UA




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Digital-fiber-optic-receiver
(N + 1) Wires Connect N Hall-Effect Switches
12V to 220V converter circuit Schematic Diagram
led lighting for 6v vehicles
laser sup circuit
AV Switch circuit
Um232r Usb- Serial Uart Development Module
A Cmos Based Single Zone Alarm circuit
Buck Converter LED Driver for Automotive
AM base circuit



Top