Power-supply of adjustable DC steady voltage part 8

Published:2011/5/29 23:26:00 Author:Ariel Wang | Keyword: adjustable, DC , steady voltage | From:SeekIC

The 220V AC voltage is dropped down through T，commutated through VD1-VD4，filtered through C1 and C.And it is regalated by lCl-IC3，RPl，Rl，VDg and VDlO.Then it goes through the contactor K1 of electric relay K .It provides load(withelectrical equipment) .Or it may charge up storage battery. It is voltage-regulated to +6V through IC5, being as the working voltage for IC6，1C7，IClO and K . The AC voltage regulated through T should commutate through VD5-VD.It filtered through C3 and voltage-regulated through IC4 and RP2.It generates +20V voltage as the working power-supply for IC5 and IC9. In order not to make the voltage drop too much when the voltage goes through the input end to the output end .You can use voltage option switch S to choose the voltage of 12V，24V and 36V AC secondary side of T.Adjust the resistance of RP1.Then its output end (OUT) can generate DC voltage of 6-40V.



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