US 12,261,547 B2
Method of operating a power converter, control circuit, and power converter with switch input circuit
Gerald Deboy, Klagenfurt (AT); and Matthias J. Kasper, Villach (AT)
Assigned to Infineon Technologies Austria AG, Villach (AT)
Filed by Infineon Technologies Austria AG, Villach (AT)
Filed on Aug. 31, 2022, as Appl. No. 17/900,162.
Claims priority of application No. 21196407 (EP), filed on Sep. 13, 2021.
Prior Publication US 2023/0081602 A1, Mar. 16, 2023
Int. Cl. H02M 7/217 (2006.01); H02M 1/42 (2007.01)
CPC H02M 7/217 (2013.01) [H02M 1/4225 (2013.01)] 25 Claims
OG exemplary drawing
 
1. In a power converter comprising a first power converter input node, a second power converter input node, a converter stage, a first electronic switch connected between the first power converter input node and a first converter stage input node of the converter stage, a second electronic switch connected between the first converter stage input node and a second converter stage input node of the converter stage, and an output capacitor connected between a first output node and a second output node of the converter stage, a method comprising:
via a controller, in response to detecting operation of the power converter in a first operational state, implementing a first mode of regulating an input current supplied through the first electronic switch to the first converter stage input node via a switched-mode operation of the first electronic switch and the second electronic switch;
wherein the switched-mode operation of the first electronic switch and the second electronic switch comprises alternatingly switching ON and switching OFF the first electronic switch and the second electronic switch;
the method further comprising: via the controller, implementing a second mode of regulating the input current supplied through the first switch via activation of the converter stage, the first switch activated to an ON-state and the second switch deactivated to an OFF-state during the second mode.