DC shunt regulator power supply circuit
Posted on Dec 11, 2010 9518
- Power Supply Circuits
DC shunt regulator power supply circuit Shown is a DC power supply circuit in parallel using the radio circuit, after the AC 22V output voltage by the step-down transformer 8V
AC low voltage, 8V AC voltage through a bridge rectifier output of about 1V DC, filtered and then by ct, R, Ds regulator, C2 filtered output of 6V regulated DC. Circuit electrolytic capacitor using two smoothing filter. Use diode voltage regulated power supply circuit is simple, but the biggest drawback is that in case of load power zener diodes are still current consumption, the load current is smaller the current flowing through the regulator is greater, because this two shares equal to the sum of a constant current. So the regulator power supply only for the load current is small, and the change is not the occasion.