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Issue on charging current while switching two power sources
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Sourav123:
The circuit is to switch the voltage for battery charging circuit and not allow the solar power to 'other load' circuitry.

The charge current is set to 1A where in this configuration it draws only 125mA. The diodes D1, D2, D3 are SS34A.
When removed D2 and applied supply voltage to solar source it works fine.
When I replace all the diodes to 1N4004, the circuit draw sufficient charge current.
As I have tried this simulation using SS34A and 1N4004, I get no issues but practically for which property of SS34A I'm getting the problem.
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