US 12,034,361 B2
Controller for a DC-DC converter
Wouter van der Heijden, Nijmegen (NL); Edwin Schapendonk, Brabant (NL); Henricus Cornelis Johannes Buthker, Mierlo (NL); Henri Verhoeven, Someren (NL); Oswald Moonen, Eindhoven (NL); and Ton van Deursen, Best (NL)
Assigned to NXP B.V., Eindhoven (NL)
Filed by NXP B.V., Eindhoven (NL)
Filed on Apr. 7, 2022, as Appl. No. 17/658,342.
Claims priority of application No. 21167743 (EP), filed on Apr. 9, 2021.
Prior Publication US 2022/0329150 A1, Oct. 13, 2022
Int. Cl. H02M 1/00 (2007.01); H02M 3/155 (2006.01)
CPC H02M 1/0032 (2021.05) [H02M 3/155 (2013.01)] 16 Claims
OG exemplary drawing
 
15. A method of operating a DC-DC converter that includes an inductor, wherein the DC-DC converter has three phases of operation:
a first phase, in which an input voltage charges the inductor;
a second phase, in which the inductor discharges to a load; and
a third phase, in which the inductor is disconnected from the load, and in which the input voltage does not charge the inductor;
the method comprising;
setting a control-factor based on the input voltage of the DC-DC converter; and
setting the duration of the third phase, t3, based on

OG Complex Work Unit Math
 where p is the control-factor, t1 is the duration of the first phase, and t2 is the duration of the second phase.