Patent · US Active

Method and device for matching the voltage of the smoothing capacitor of a DC/DC converter before a high-voltage battery is connected

US11496042B2 · kind B2 · utility

2Cited by

0References

11Claims

0Family size

Assignee

BRUSA HyPower AG · CH

Inventors

Axel Krause · Lechenich, DE
Nicolae Daniel Bolohan · Buchs, CH

Key dates

Filing date	Aug 30, 2019
Grant date	Nov 8, 2022
Priority date	—
Expiry date	Aug 30, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/70
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a method and to a device for operating a bidirectional voltage transformer connectable to a primary battery and having a primary-side smoothing capacitor, an inductive transformer, and a secondary-side clamping capacitor, wherein, before the primary battery is connected, a voltage at the primary-side smoothing capacitor is matched to a voltage of the primary battery by a cyclical transfer of charge from the secondary-side clamping capacitor. The voltage of the primary-side smoothing capacitor is matchable in this way to the voltage of the primary battery before the primary battery is connected, and current spikes thus avoided during connection of the primary battery.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.