Low Power PWM Consumption

RE: Low Power PWM Consumption

Sigurd — Thu, 14 Dec 2017 16:30:29 GMT

With the low power PWM running at 1 kHz, I don't think you can get it much lower than your 112 µA. I think the CPU goes from IDLE mode to RUN mode every pwm period to switch the GPIO level, so with increasing frequency the current consumption goes up. If you reduce the frequency, the current consumption should go down.

RE: Low Power PWM Consumption

LukeC — Thu, 07 Dec 2017 00:21:35 GMT

Thanks, but in my application I need to have the LED on while running, I am trying to get the lowest sleep current possible while PWMing the LED.

RE: Low Power PWM Consumption

Sigurd — Wed, 06 Dec 2017 14:30:43 GMT

Hi,

Try to turn off the PWM before you go to to sleep, using the function low_power_pwm_stop(&pwm_instance)