Welder no-load power saver circuit diagarm 5

Published:2011/6/10 4:58:00 Author:Lucas | Keyword: Welder, no-load , power saver | From:SeekIC

The welder no-load power saver circuit is composed of the current detection control circuit and power saving control circuit, and the circuit is shown as the chart. Current detection control circuit is composed of the current transformer TA, bridge rectifier UR, resistor R1, Zener diode VS, capacitor C2 and diode VD. Power control circuit consists of resistor R2, capacitor C1 and thyristor VT. R1 uses 3W wirewound resistor; R2 uses 2W metal film resistor. C1 uses the CBB capacitor or oil capacitor with the voltage being 630V; C2 uses the aluminium electrolytic capacitor with the voltage being 16V. VD selects 1N4007 silicon rectifier diode. VS selects 2CW12 silicon voltage regulator diode. UR selects 1A, 50V bridge rectifier.



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