Normal battery charger technology uses single-stage battery charging technology i.e. only charge the battery up to the maximum charging voltage preset by the charging circuit. Now here is a 12V, 7Ah smart battery charging circuit which is also referred to as a smart charger uses three-stage of charging i.e. bulk stage, absorption stage, and float stage.
The circuit diagram of the 12V, 7Ah smart battery charger is shown in figure 1. It utilizes a step-down transformer, adjustable voltage regulator IC (LM317), op-amp comparator, zener diode, and a few other active and passive components.
12v 7ah Battery Charger Circuit Diagram Pdf
Download File: https://tinurli.com/2vIoTg
PCB of this smart battery charger circuit is built using the Altium design tool. Solder side and component side PCB diagrams are shown in Figures 3 and 4. Download the actual size solder side and component from the link given below. 2ff7e9595c
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