Automatic control of mode (LDO and DCDC)

[NY]

Hello, I used translation software.

I used the function to enable DCDC mode I used sd_power_dcdc_mode_set ().

I want to use the optimal mode for power supply voltage. I want to automatically control the mode with the value of the power supply voltage.

Is the function sd_power_dcdc_mode_set () the best way?

I am using nrf 52832 and sdk 14.0.0. I am using "ble_app_uart".

I could not find the answer I wanted. Thank you in advanced.

[bjorn-spockeli]

Hi NY,

The nRF52832 will automatically turn on and off its internal regulators and DCDC Buck converter(if enabled with sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE) ) depending on which peripherals that are active to optimize the current consumption.

So calling the sd_power_dcdc_mode_set() function with NRF_POWER_DCDC_ENABLE as input will simply enable the DCDC and then the nRF52832 will handle everything from there.

Thus, you only need to call sd_power_dcdc_mode_set() once in main().

Note: Make sure that you have the L2 and L3 inductors that are needed by the DCDC if you're using a custom board, see the nRF52832 reference schematic.

Best regards

Bjørn

[NY]

Thank you for your reply. I understood. It's thanks to you. regards.

[bjorn-spockeli]

Happy to help :) I would appreciate if you could mark the answer as accepted/correct by clicking the check mark in the grey circle to the left of the answer.