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Boost converter with variable input voltage. | Cypress Semiconductor

Boost converter with variable input voltage.

Summary: 1 Reply, Latest post by U2 on 21 Feb 2011 05:13 AM PST
Verified Answers: 0
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swami's picture
User
2 posts

 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?

 

U2
uday's picture
Cypress Employee
569 posts

 Hello Swami,

  • The Boost Converter input(Battery Voltage) can be any voltage above 0.5 Volts for PSoC3.
  • 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.
  • The Boost circuit will work for any voltage above 3 Volts. You need not regulate the battery voltage and then connect it to Boost.

-Udayan

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