Patent · US Active

Method and device for charging an intermediate circuit capacitor in a high-voltage network

US12337708B2 · kind B2 · utility

0Cited by

1References

17Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Gholamabas Esteghlal · Ditzingen, DE
Markus Michels · Stuttgart, DE
Michael Ruffer · Ludwigsburg, DE
Thomas Daub · Lambach, DE

Key dates

Filing date	May 25, 2021
Grant date	Jun 24, 2025
Priority date	—
Expiry date	Feb 20, 2042

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/7072
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a method (100) for charging an intermediate circuit capacitor (210) in a high-voltage network (205). The high-voltage network can be connected to a power source (220) by means of at least one switch (230) and is coupled to a low-voltage network (295) by means of a DC voltage converter (250). The method comprises the steps: determining (110) a first voltage (U1) across the power source (220); determining (120) a second voltage (U2) across the intermediate circuit capacitor (210); determining (130) a first difference (D1) between the first voltage (U1) and the second voltage (U2); switching (140) the DC voltage converter (250) to the boost converter operating mode to charge the intermediate circuit capacitor (210) according to the determined first difference (D1).

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