US 12,231,049 B2
DC-DC converter and method of controlling the same
Raymond Barnett, Plymouth, MN (US); Brett Smith, Fayette, IA (US); and Thinh Ba Nguyen, Hanoi (VN)
Assigned to Qorvo US, Inc., Greensboro, NC (US)
Filed by Qorvo US, Inc., Greensboro, NC (US)
Filed on Nov. 15, 2022, as Appl. No. 18/055,444.
Claims priority of application No. 1-2022-00101 (VN), filed on Jan. 7, 2022.
Prior Publication US 2023/0223852 A1, Jul. 13, 2023
Int. Cl. H02M 3/158 (2006.01); H02M 1/08 (2006.01)
CPC H02M 3/1586 (2021.05) [H02M 1/083 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A DC-DC converter comprising:
an electronic switch network having a supply node, a ground node, an output node, a first inductor node, a second inductor node, and switch control inputs;
an inductor coupled between the first inductor node and the second inductor node; and
control logic circuitry having switch control outputs coupled to switch control inputs, wherein the control logic circuitry is configured to cause the electronic switch network to couple the inductor between the supply node and the output node to provide current flow through the inductor for a fixed time period, and at the end of the fixed time period to measure a check time period until the current flow through the inductor is equal to a predetermined current value and based upon the measured check time period to determine to switch between buck operation and boost operation or boost operation and buck operation.