The adjustable, stable large current power supply

Published:2011/6/15 23:45:00 Author:Borg | Keyword: large current, power supply | From:SeekIC

The voltage of the stable power supply can be regulated from 3.5V to 25V, whose output current is large, and it is an adjustable voltage steady pipe circuit, so a stable enough output vo
tage can be got.Working principle: after being filtered and rectified, the DC voltage is offered to the basic pole of the adjusting pipe by R1, which makes the pipe conducting. When V1 is conducting, the voltage crosses RP and V2, which makes V2 conducting, and V3 is also conducting subsequently, at this moment, the voltages on the emitters and collecting electrodes of V1, V2 and V3 are no longer changing(the functions are the same with the voltage steady pipe). By adjusting RP, we can get a stable output voltage.



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