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12V/5A storage battery automatic charging device

2016-05-10 01:21  
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12V/5A storage battery automatic charging device
This device uses the 220V power grid as hte power supply. The output voltage is adjusted to the set value by potentiometer R1. The main technical data: Operating voltage:-23+/-15%V;Output voltage:-(14-15)V;Output voltage changing rate (when the operating voltage changing rate is +/-15%):<+/-0.5%;Output resistance (I=4.5A):<0.05Ω;Maximum output current:5A;Transistor T3 radiator thermal resistance:<100K/W;Each power transistor radiator thermal resistance:<5.5K/W.