static power during advertising with nRF52832

[Reza papi]

Hi everyone,

I am using nRF52832 DK to transmit data to another development kit. During advertising, I measure the current with PPK II and see that the DK draws a static current of nearly 8mA. I expect to current goes down to a few micro amp between each advertisement but it did not happen. After transmitting data the DK goes to idle mode and draws only 7 uA which I believe is reasonable. Could you please help me with this issue?

This is the measured current during advertising.

 

The second photo shows the measured current during idle mode.

Thank you, guys.

[Simonr]

Hi

The current consumption seems much more reasonable now indeed. Glad to seee that. The spikes you're seeing are caused by the PPK when it switches to a smaller measurement resistor because of the sudden current increase. Unfortunately, the firmware doesn't filter these out as well as we would like. These won't affect the average current consumption, so it's not anything to worry about, but it will make measuring the max. current consumption harder to determine.

Best regards,

Simon

[Reza papi]

Hi,

Thank you again for your reply.

Could you please give me some information about my other question, Dc to Dc regulator.

I wanted to minimize the current as much as possible.