Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2007-01-16
2007-01-16
Vu, Bao Q. (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
C363S021100, C363S021080
Reexamination Certificate
active
11474712
ABSTRACT:
A circuit is provided for converting power from an AC power source to DC power. The circuit including bi-directional switches capable of conducting and blocking a current flow in both directions. One or more control switches are coupled to a bi-directional switch to enable and disable the current flow through the bi-directional switch, the control switches are controlled by a signal voltage to turn a bi-directional switch ON by discharging a threshold voltage on one of the bi-directional switch gates and turning a bi-directional switch OFF when the threshold voltage is not discharged by the control switches. Additionally, the circuit includes a transformer having one or more primary windings and a secondary winding, each primary winding being coupled to one of the bi-directional switch sources. The current flow through the primary winding is disabled when the current flow through the corresponding bi-directional switch source is disabled.
REFERENCES:
patent: 6577511 (2003-06-01), Yamaguchi et al.
patent: 6781853 (2004-08-01), Xu et al.
patent: 6788553 (2004-09-01), Jin et al.
patent: 6912141 (2005-06-01), Konno
Salato Maurizio
Soldano Marco
International Rectifier Corporation
Ostrolenk Faber Gerb & Soffen, LLP
Vu Bao Q.
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