Author Topic: Batt charging circuit not working. Please help  (Read 134 times)

rclawalan

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Batt charging circuit not working. Please help
« on: March 07, 2017, 10:23:21 AM »
Hello,

I am working on a project with MCP73831 as batt charging module and MIC5219 as 3.3v regulator to power my system. Schematic as attached.

It works in the following situations:

1) when i plugged in usb and power the whole system
2)  3.3v power supply from other arduino board and attached to the V Batt and GND

But, the whole system do not work in the following situation:

1) when the system is solely powered up by li-ion poly battery.

Have anyone encountered this? please help.
Any help is greatly appreciated.

Thanks!

Anthony.phan

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Re: Batt charging circuit not working. Please help
« Reply #1 on: April 01, 2017, 12:21:09 AM »
I don'y see anything wring with your schematic, however you have not included the simblee part of your circuit...
Perhaps I could also have something to do with your routing.

 

anything