DC-DC Converter

[Sulaiman]

I am working on a project which uses solar panel to charge a couple of AA batteries. The panel is 5V, and the max voltage I am getting out of it is 4.2V. My project scope involves using a DC converter to convert the voltage from the panel to a constant 3V to charge the batteries. The problem is that all the converters available need a minimum input of 4.5V or 4.75V.

I need help finding a converter that accepts about 4.2V and gives out 3V. Or if someone can help me with creating a DC buck converter that converts 3.5V-4.2V to a constant 3V. 

Thank you.

[AJISH ALFRED]

Hi,

You already getting more (4.2) than required voltage(3V) to charge the battery, is it not possible to use a potential divider which can divide 4.2 V to 3V and 1.2 V ?

[Author]

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