US 11,901,830 B2
Method for controlling the input voltage frequency of a DC-DC converter
Miassa Taleb, Yvry sur seine (FR); and Abdelmalek Maloum, Chevilly Larue (FR)
Assigned to Renault s.a.s., Boulogne-Billancourt (FR)
Appl. No. 17/259,374
Filed by Renault s.a.s., Boulogne-Billancourt (FR)
PCT Filed Jun. 24, 2019, PCT No. PCT/EP2019/066607
§ 371(c)(1), (2) Date Jan. 11, 2021,
PCT Pub. No. WO2020/015953, PCT Pub. Date Jan. 23, 2020.
Claims priority of application No. 18 56534 (FR), filed on Jul. 16, 2018.
Prior Publication US 2021/0296999 A1, Sep. 23, 2021
Int. Cl. H02M 3/337 (2006.01); B60L 53/20 (2019.01); H02M 3/335 (2006.01); H02J 7/00 (2006.01); H02M 1/42 (2007.01); H02M 3/00 (2006.01)
CPC H02M 3/3376 (2013.01) [B60L 53/20 (2019.02); H02J 7/00 (2013.01); H02M 1/4208 (2013.01); H02M 3/01 (2021.05); H02M 3/33573 (2021.05); B60L 2210/10 (2013.01); B60L 2240/527 (2013.01); H02J 2207/20 (2020.01)] 7 Claims
OG exemplary drawing
 
1. A method of controlling a frequency of an input voltage of an LLC DC-to-DC converter which operates with a duty cycle of 50% and is frequency-controlled, comprising:
defining a setpoint voltage value;
calculating a control frequency value for said DC-to-DC converter, which is obtained by mathematical inversion of an expression of a gain of said DC-to-DC converter, based on an output battery voltage, an input power setpoint, and said setpoint input voltage; and
applying the control frequency calculated by the calculating to said converter.