Circuit configuration with error detection for the actuation...

Details Circuit configuration with error detection for the actuation... Circuit configuration with error detection for the actuation...

2006-05-23

2008-08-26

Han, Jessica (Department: 2838)

Electric power conversion systems

Current conversion

Using semiconductor-type converter

C363S056070

Reexamination Certificate

active

07417880

ABSTRACT:
An integrated circuit configuration is provided comprising a primary side and a secondary side, for actuating power switches disposed in bridge circuit topology as well as an associated method. The primary side comprises a signal processing means and a level shifter for the potential-free actuation of the secondary side. The secondary side, in turn, comprises a signal processing means as well as a driver stage for the TOP switch. For the detection of the switched state of the TOP switch on the primary side, this side comprises a circuit section for the detection and interpretation of a current flow through a level shifter. A first lower threshold value of this current through the level shifter detected on the primary side is assigned to the not-switched-on TOP switch of the bridge circuit, and a second upper threshold value of this current through the level shifter detected on the primary side is assigned to the switched-on TOP switch of the bridge circuit.

REFERENCES:
patent: 6847174 (2005-01-01), Franck
patent: 7233510 (2007-06-01), Pawel et al.
patent: 2003/0112040 (2003-06-01), Yoshimura
patent: 2006/0087260 (2006-04-01), Herzer et al.

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