| Electronics > Projects, Designs, and Technical Stuff |
| Avg. Power consumption calculation |
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| ArCoN:
Hi All 8) Can any one help me with this. I have a circuit that use: 30uA static wake up 2 times/sec and uses 3.3mA for 10mS at idle and it do some work 10 times/day and it uses 5mA for 5sec i cant get it right, for some reason i have a 1100mAh battery I get around 100h in my calc and it is not right :-\ Thanks |
| Psi:
I got average total current draw of 98.894 uA so 11123 hours |
| ArCoN:
Thanks Psi Can you write how you did it? ;D |
| sleemanj:
5mA for 5s is 0.0069 mAh, 10 times a day, divide by 24 hours 0.00289 mAh in an hour 3.3mA for 10mS is 9.1666666666667e-09 mAh, twice a second for an hour is 0.066 mAh in an hour 30uA for an hour is 0.03 mAh Total 0.0988 mAh in an hour I come up then with 11,000 hours (rounded :-)) I am probably wrong, I'm really bad at maths. |
| Psi:
Here's the workings, excel file attached. But i wouldn't trust this as correct unless someone else gets the same number. (Edit, looks like sleemanj also got 0.0988 mAh and round 11,000 hours ) |
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