Patent · US Active

Method and device for reducing voltage loads of semiconductor components of an inverter

US12027901B2 · kind B2 · utility

0Cited by

4References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Karl Oberdieck · Neckartenzlingen, DE
Hadiuzzaman Syed · Stuttgart, DE
Manuel Horvath · Reutlingen, DE
Marco Graf · Tamm, DE
Sebastian Strache · Wannweil, DE
Stephan Schwaiger · Bodelshausen, DE

Key dates

Filing date	Jan 17, 2023
Grant date	Jul 2, 2024
Priority date	—
Expiry date	Jan 29, 2043

Classification

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

Abstract

A method and device for reducing voltage loads of semiconductor components of an inverter. The method includes: ascertaining a request to charge a battery of an electric system including the battery, the inverter, and an electric machine. The inverter including a series connection including a first and a second semiconductor component, and being configured to convert a direct voltage provided by the battery into an alternating voltage for the electric machine, and adapt a gate voltage of the first semiconductor component and/or of the second semiconductor component to interrupt a current flow between the battery and the electric machine during the charging. A voltage load of a gate oxide layer of the semiconductor components is reduced by decreasing the gate voltages of the first semiconductor component and of the second semiconductor component and/or a voltage load of a drain-source path of the semiconductor components being matched to one another.

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