Storage battery automatic charger 3

Published:2011/11/10 2:44:00 Author:May | Keyword: Storage battery, automatic charger | From:SeekIC

Familiar storage battery automatic charger can achieve the purpose of automatic control by detecting storage battery voltage when it ischarging. But when it has charging current, justified voltage of storage battery will be too high, so it is hard to decide the degree of charging by storage battery voltage. This text introduces an automatic storage battery charger. The circuit is shown in diagram 4-10. It is theautomatic charger and its core is thethyristor components. When charger is connectedto discharged storage battery, thyristor VS is breaking over at every positive half period, and it will charge to the battery. In the end of positive half period, when charge voltage is lower than storage battery voltage, thyristor VS is cut off. When positive half period sarts, VS is in the cut-off stateat this time, the comparing of charge voltage and reference starts in order to decide whether VS is breaking over or not. When justified voltage of battery reaches to the certain value (about 13.5V), VT will not have current and VS will be cut off.



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