US 11,811,316 B2
Adaptive control of a switched voltage converter
Benjamin L. Schwabe, Munich (DE); Christian Rainer, Klagenfurt (AT); and Darryl Galipeau, Warwick, RI (US)
Assigned to Infineon Technologies Austria AG, Villach (AT)
Filed by INFINEON TECHNOLOGIES AUSTRIA AG, Villach (AT)
Filed on Dec. 20, 2018, as Appl. No. 16/228,444.
Prior Publication US 2020/0204070 A1, Jun. 25, 2020
Int. Cl. H02M 3/156 (2006.01); H02M 3/06 (2006.01); H02M 3/07 (2006.01); H02M 3/158 (2006.01)
CPC H02M 3/156 (2013.01) [H02M 3/06 (2013.01); H02M 3/07 (2013.01); H02M 3/158 (2013.01)] 41 Claims
OG exemplary drawing
 
1. A system comprising:
a switched-capacitor converter to generate an output voltage to power a load;
a monitor operable to monitor operation of the switched-capacitor converter and determine an output impedance of the switched-capacitor converter based on the monitored operation; and
a controller operable to: i) produce control signals, the control signals controlling switching operation of the switched-capacitor converter to generate the output voltage, and ii) adjust a frequency of the control signals as a function of the determined output impedance;
wherein a first setting of the frequency of the adjusted control signals corresponds to a first output impedance of the switched-capacitor converter, the first output impedance being a minimum output impedance; and
wherein a second frequency of the adjusted control signals corresponds to a second output impedance of the switched-capacitor converter, the second frequency being greater than the first frequency, the second output impedance being greater than the first output impedance.