Car battery charging circuit diagram

Circuit principle: The circuit charges the battery after voltage transformation, bridge rectification and conditioning. The transformer can easily adjust the charging current and can charge a 12v 100AH ​​battery. A charging current of 10A is required based on a 10-hour charging rate. A 150VA transformer is required, the secondary AC voltage is 15V, and the current limit is 10A. Use a corresponding transformer to convert the power to AC 10V, and use a full-bridge rectifier and a large capacitor to convert the power to a stable 14.14V.