Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2008-01-22
2008-01-22
Patel, Rajnikant B. (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
C363S021040
Reexamination Certificate
active
07321498
ABSTRACT:
An apparatus (54) is provided for preventing cross conduction in a synchronous rectifier of a DC-DC converter (10). The DC-DC converter has an input MOSFET switch (26) coupled to primary windings (22) of an isolation transformer (20), an output MOSFET switch (30) coupled to secondary windings (24) of the isolation transformer, and a complementary output MOSFET switch (34) coupled to an output terminal (14). A synchronous rectifier timing circuit (54) comprises a first timing output signal circuit (62) responsive to a pulse width modulated signal for providing first and second timing output signals (55, 56) that switches low at time t1and high at time t4to control the input MOSFET switch and output MOSFET switch, respectively, and a second timing output signal circuit (64) responsive to the pulse width modulated signal for providing a third timing output signal (58) that switches high at time t2and low at time t3to control the complementary output MOSFET switch.
REFERENCES:
patent: 5724235 (1998-03-01), Shimamori et al.
patent: 6351396 (2002-02-01), Jacobs
Honeywell International , Inc.
Ingrassia Fisher & Lorenz
Patel Rajnikant B.
LandOfFree
DC-DC converter having synchronous rectification without... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with DC-DC converter having synchronous rectification without..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DC-DC converter having synchronous rectification without... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2797535