Patent ID: 11884171
Assignee: HYUNDAI MOBIS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H | IPC B  H

Claim 7:
8. An apparatus for minimizing the parasitic resistance of an output capacitor of a low-voltage DC-DC converter (LDC), comprising:
an interleaving controller for interleaving control of an N-phase power circuit of the LDC including the N-phase power circuit configured by connecting N DC-DC converters in parallel and one output capacitor commonly connected to an output of each phase DC-DC converter with a phase delay of 360°/N, in which N is a natural number greater than 1; and
a switching controller configured to derive a frequency f_im leading to the lowest impedance of the output capacitor commonly connected to the output of each phase converter, calculate f_im/N to calculate a shared frequency f_sh of each phase by dividing the derived frequency by N, and control each phase DC-DC converter of by switching at the calculated shared frequency f_sh of each phase.