Simple charger circuit that stops when fully charged
Source: InternetPublisher:兰博 Keywords: Charger circuit charger transistor Updated: 2020/08/17
Circuit working principle: When the 12 V battery is fully charged, its terminal voltage rises to
13.5 V. At this time, the transistor VT is turned on, the relay is closed, and K-1 is disconnected, thereby cutting
off the charger power and the charger stops working.
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