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Author Topic: Battery monitor with ability to complete device cut-off  (Read 1337 times)
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movf_jmpz
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« on: July 16, 2013, 09:27:41 21:27 »

I need to design battery monitor piece of hw that would be able to cut-off the whole device from the power source (LiPo / LiIon battery pack). It will be nice if cut-off current is real 0 or near 0 (few pA/nA).
Have you seen such design?
Thanks in advance...
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robotai
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« Reply #1 on: July 17, 2013, 06:22:39 06:22 »

Normal Lipo/LiIon protector circuit do the protection for over current, over voltage and under voltage protection. Isn't it what you want? Googling it you should found many reference.
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TrimmedProbes
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« Reply #2 on: July 17, 2013, 10:27:47 10:27 »

You'll find a vast amount of information on batteries and battery management here.  Have a look at the Battery Testing and Monitoring section.

http://batteryuniversity.com/learn/
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movf_jmpz
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« Reply #3 on: July 17, 2013, 09:47:45 21:47 »

Thanks TrimmedProbes, but I don't want to learn about batteries and more of this pseudoscientific/not-very-specific blablabla like on batteryuniversity.com. I was asking for specific design, maybe some clues about specific IC's or rather cheap & simple solution based on few passive/active components or MCU with ADC & maybe some xxxFET as a switch.
The maximum current requested from battery would be about 1A peak.
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pickit2
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« Reply #4 on: July 17, 2013, 10:47:13 22:47 »

Quote
I need to design battery monitor
Answer is easy, if you don't want to learn, pay for the work You want doing.
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