Beacon: how to reduce power consumption

RE: Beacon: how to reduce power consumption

Krob64 — Fri, 03 Nov 2023 09:18:42 GMT

Ok, thank you for your quick answer.

RE: Beacon: how to reduce power consumption

Jared — Fri, 03 Nov 2023 09:16:11 GMT

4.74µA is within expected current consumption in IDLE sleep. In IDLE sleep the regulator will be in ULP mode so it DC/DC will not have a big effect, but you'll save power as it's much more efficient when the load is higher for example when the radio is on.

regards

Jared

RE: Beacon: how to reduce power consumption

Krob64 — Thu, 02 Nov 2023 15:52:33 GMT

I try to add : sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE );

I didn't find much difference, without 4.74µA and with 4.69µA.

Is ther another way to further reduce consumption ?

Regards,

Krob.

RE: Beacon: how to reduce power consumption

Jared — Thu, 02 Nov 2023 13:11:51 GMT

Hi,

Good, ok that looks like advertising event.

Did you enable the DC/DC, did the current decrease?

regards

Jared

RE: Beacon: how to reduce power consumption

Krob64 — Thu, 02 Nov 2023 12:57:20 GMT

[quote userid="73165" url="~/f/nordic-q-a/105304/beacon-how-to-reduce-power-consumption/453699"]Can you zoom into 1 peak so that it's expanded?[/quote]

This the zoom into 1 peak

RE: Beacon: how to reduce power consumption

Jared — Thu, 02 Nov 2023 12:07:38 GMT

Hi,

You can call sd_power_dcdc_mode_set() to enable the DC/DC regulator for REG1.

[quote user="Krob64"]this is the zoom into one peak:[/quote]

Can you zoom into 1 peak so that it's expanded?

regards

Jared

RE: Beacon: how to reduce power consumption

Krob64 — Thu, 02 Nov 2023 10:31:09 GMT

Hi Jared,

Thank you for your quick reply !

1. I measure 17µA between two peaks

2. this is the zoom into one peak:

3. I don't know how to check if I use DCDC regulator.

But I just disable the log into sdk_config (NRF_LOG_ENABLED 0), and know I have a better consumption around 5µA:

Can you tell me how to check if the DCDC regulator is enable ?

Do you think I can reduce more the consumption ?

Best Regards,

Krob.

RE: Beacon: how to reduce power consumption

Jared — Thu, 02 Nov 2023 10:12:34 GMT

Hi,

What avg current do you measure if you don't include the peaks?
Can you zoom into one of the peaks and share a screenshot of it?
Have you enabled DC DC regulator?

regards

Jared