US 12,445,037 B2
DCDC converters
Bartosz Gajda, Trondheim (NO); Frode Pedersen, Trondheim (NO); and Samuli Hallikainen, Oulu (FI)
Assigned to Nordic Semiconductor ASA, Trondheim (NO)
Appl. No. 18/031,862
Filed by Nordic Semiconductor ASA, Trondheim (NO)
PCT Filed Oct. 13, 2021, PCT No. PCT/EP2021/078348
§ 371(c)(1), (2) Date Apr. 13, 2023,
PCT Pub. No. WO2022/079117, PCT Pub. Date Apr. 21, 2022.
Claims priority of application No. 2016292 (GB), filed on Oct. 14, 2020.
Prior Publication US 2023/0402919 A1, Dec. 14, 2023
Int. Cl. H02M 1/00 (2007.01); H02M 3/158 (2006.01); G05F 1/577 (2006.01); H02M 3/156 (2006.01)
CPC H02M 1/009 (2021.05) [H02M 1/0045 (2021.05); G05F 1/577 (2013.01); H02M 3/1566 (2021.05); H02M 3/158 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A circuit portion comprising:
a DCDC converter arranged to provide current from an output of the converter to one of a plurality of loads at a time;
a controller configured to detect when a voltage across an under-supplied load of the plurality of loads from the DCDC converter is below a first threshold;
channel logic circuitry configured to provide current from the output of the converter to the under-supplied load in response to the controller detecting that the voltage is below the first threshold; and
a voltage regulator configured to provide current to the under-supplied load when the voltage is below a second threshold;
wherein the controller is configured to detect a plurality of under-supplied loads and to determine which of the under-supplied loads is to be provided with the output current from the DCDC converter, wherein the channel logic circuitry is configured to determine how recently each of the plurality of under-supplied loads was provided with output current from the DCDC converter and use said determination to provide the output current from the DCDC converter to the plurality of under-supplied loads in an order that limits an amount of time that any particular load is undersupplied.