The single terminal forward switch power supply circuit

Published:2011/6/23 1:51:00 Author:qqtang | Keyword: single terminal, forward, switch power supply | From:SeekIC

The single terminal forward switch power supply circuit is shown in the figure. This circuit is like the backward switch power supply circuit in terms, but the working condition is different. When the switch VT1 is conducting, VD2 is also conducting, at the moment, the grid is sending energy to the loading, the filter inductor L is storing energy; when the switch VT1 is blocked, the inductor L is releasing power to the loading by the freewheel diode VD3. In the circuit, there is also a clamper coil and diode VD2, which can keep the maximum voltage of the VT1 within the twice of the power supply voltage.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Power_Supply_Circuit/The_single_terminal_forward_switch_power_supply_circuit.html

Print this Page | Comments | Reading(3)