projects:blinker:work_logs:6_power_consumption_testing
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| Both sides previous revisionPrevious revision | Next revisionBoth sides next revision | ||
| projects:blinker:work_logs:6_power_consumption_testing [2022/03/07 04:37] – tjhowse | projects:blinker:work_logs:6_power_consumption_testing [2022/03/07 04:38] – tjhowse | ||
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| Line 71: | Line 71: | ||
| def calcEnergy(farads, | def calcEnergy(farads, | ||
| return (farads/ | return (farads/ | ||
| - | {code} | + | {/code} |
| With 25 Farads capacity, and a deltaVolts of 0.75v (started at 2.25v, ended at 1.5v), we get a stored energy of 7 joules. | With 25 Farads capacity, and a deltaVolts of 0.75v (started at 2.25v, ended at 1.5v), we get a stored energy of 7 joules. | ||
| Line 78: | Line 78: | ||
| def calcWatts(joules, | def calcWatts(joules, | ||
| return joules/ | return joules/ | ||
| - | {code} | + | {/code} |
| Over 30000 seconds we get 233µW. At an average of 1.875V that gives us 124µA. The rated leakage current of the Zener is 120µA at 1v, so this seems reasonable. Once the full compliment of six 40-Farad caps are installed we should get a runtime of around 6 days. These numbers are all very rough, and treat a pretty non-linear curve as linear, but they should be approximately close. | Over 30000 seconds we get 233µW. At an average of 1.875V that gives us 124µA. The rated leakage current of the Zener is 120µA at 1v, so this seems reasonable. Once the full compliment of six 40-Farad caps are installed we should get a runtime of around 6 days. These numbers are all very rough, and treat a pretty non-linear curve as linear, but they should be approximately close. | ||
projects/blinker/work_logs/6_power_consumption_testing.txt · Last modified: 2022/03/07 04:47 by tjhowse