Patent · US Active

Circuit device having a power converter and a capacitor discharge device

US11323020B2 · kind B2 · utility

0Cited by

2References

6Claims

0Family size

Assignee

SEMIKRON ELEKTRONIK GMBH & CO. KG · DE

Inventors

Roland Bittner · Ansbach, DE
Jochen Kraus · Singen (Hohentwiel), DE
Robin Koschinski · Nuremberg, DE
Sebastian Hettrich · Schwabach, DE

Key dates

Filing date	Jan 23, 2020
Grant date	May 3, 2022
Priority date	—
Expiry date	Dec 29, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH02M1/322
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A circuit device has a power converter, which includes power semiconductor switches and a capacitor which is connected to a first and a second intermediate circuit conductor in an electrically conductive manner, and having a capacitor discharge device for the electrical discharging of the capacitor. The capacitor discharge device includes an actuation device, an electrical discharge resistor and a first semiconductor switch having a first and a second load current terminal, and having a control terminal. The first load current terminal of the first semiconductor switch is connected to the first intermediate circuit conductor via the discharge resistor, and the second load current terminal of the first semiconductor switch connects to the second intermediate circuit conductor. The actuation device on the control terminal of the first semiconductor switch generates an actuating voltage, in accordance with a control signal, for the closing and opening of the first semiconductor switch, and having a capacitor discharge monitoring device, which is designed to monitor an electric monitoring voltage which is present between the first load current terminal of the first semiconductor switch…

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