Electronics > Projects, Designs, and Technical Stuff
Boost converter + lipo charger/battery protection circuit
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janoc:

--- Quote from: kjr18 on March 21, 2019, 10:47:40 am ---Yeah, but if you need other voltages, then you might be out of luck. I made this mainly for powering DSO150 (which gets powered by around 9V). Works ok for this purpose. I added battery protection just in case if I ever wanted to use bare cell.

--- End quote ---

Yes, true, most are designed for 5V (aka powerbank). However, it shouldn't be too hard to change the resistors in the feedback divider, if needed.

A much worse issue is that some of these modules are poorly designed and don't regulate properly - I have one that is supposed to be a buck-boost converter for 3.3V and it was completely happy to send me 4V+ into a radio module that cannot handle more than 3.6V, destroying it. Or don't want to start properly under load.
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