1 Reply Latest reply on Feb 21, 2011 5:13 AM by udayan.umapathi

    Boost converter with variable input voltage.

    salomo.murtonen

       I want to use boost converter to boost 5V out of Li-Ion battery and to let 4.2V battery voltage to drain down to 3V before recharge. What voltage level I set booster input voltage?  Or do I need to regulate first battery voltage down to 3 volt and then boost it up to 5 volt?

        • 1. Re: Boost converter with variable input voltage.
          udayan.umapathi

           Hello Swami,

             
                
          • The Boost Converter input(Battery Voltage) can be any voltage above 0.5 Volts for PSoC3.
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          • In your case the Boost component has to be configured to have a minimum input voltage of 3 Volts and give output of 5 Volts.
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          • The Boost circuit will work for any voltage above 3 Volts. You need not regulate the battery voltage and then connect it to Boost.
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          -Udayan