Electric power conversion systems – Current conversion – Using semiconductor-type converter
Reexamination Certificate
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.
Herzer Reinhard
Pawel Llja
Pawel Sacha
Han Jessica
Lackenbach & Siegel LLP
Semikron Elektronik GmbH & Co. KG
Young, Esq. Andrew
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