mosfet low dropout charger circuit

This circuit is design circuit for low drop out charger using a MOSFET as the pass element, but this circuit does not include current limiting. This is the figure of the circuit. This circuit is a simple design. This circuit uses Q3 and a Schottky diode to isolate the battery from the charging circuitry when the input voltage is removed, to preven

t the battery from discharging. Q2 should be a high current (0. 2 ©) FET, while Q3 can be a low current (2 ©) device.

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