Power consumption comparison between different running mode in STM32L476

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shaoziyang
Posts: 319
Joined: Sun Apr 17, 2016 1:55 pm

Power consumption comparison between different running mode in STM32L476

Post by shaoziyang » Fri Aug 02, 2019 1:48 am

I have made a demo board of STM32L476, to test power consumption in different mode. I have add a 10ohm resistor in vcc, calculating power consumption by measuring voltage in resistance.


demo board
0.jpg
0.jpg (58.67 KiB) Viewed 766 times

running mode
2.jpg
2.jpg (58.76 KiB) Viewed 766 times

lightsleep mode
3.jpg
3.jpg (59.13 KiB) Viewed 766 times

deepsleep mode (below 1uA)
5.jpg
5.jpg (59.52 KiB) Viewed 766 times

Above data are for reference only.

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abenragel
Posts: 6
Joined: Wed May 17, 2017 1:11 pm

Re: Power consumption comparison between different running mode in STM32L476

Post by abenragel » Fri Apr 24, 2020 11:00 am

Cool, that would be:

9.54 mA in normal running mode
1.32 mA in lightsleep mode ?

What was the system clock setting ?
Which Micropython FW did you use for testing ?

Jan

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