Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2011-06-28
2011-06-28
Han, Jessica (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
C363S132000, C323S244000, C323S246000
Reexamination Certificate
active
07969754
ABSTRACT:
A control circuit for a switch unit of a clocked power supply receives an auxiliary signal from a resonant transformer driven by the switch unit and detects reference crossing moments when the auxiliary signal crosses a reference value. A driver is controllable to switch the switch unit, and a synchronization circuit synchronizes a turn-on of the switch unit within a predetermined time interval around a zero crossing of a voltage present across the switch unit, or of a current flowing through the switch unit. The synchronization circuit receives information about the reference crossing moments and provides a turn-on signal to the driver with a fixed phase delay at the reference crossing moments, so as to define turn-on moments at which the driver is to turn on the switch unit.
REFERENCES:
patent: 3880572 (1975-04-01), Haugsjaa et al.
patent: 4631652 (1986-12-01), Wendt
patent: 5065067 (1991-11-01), Todd et al.
patent: 5495136 (1996-02-01), Chiang et al.
patent: 5546294 (1996-08-01), Schutten et al.
patent: 5854543 (1998-12-01), Satoh et al.
patent: 5866968 (1999-02-01), Mech
patent: 6002214 (1999-12-01), Ribarich
patent: 6013969 (2000-01-01), Noma et al.
patent: 6087787 (2000-07-01), Williams
patent: 6144139 (2000-11-01), Noma et al.
patent: 6239558 (2001-05-01), Fujimura et al.
patent: 6281637 (2001-08-01), Asada
patent: 6348755 (2002-02-01), Shimamura et al.
patent: 6433465 (2002-08-01), McKnight et al.
patent: 6591524 (2003-07-01), Lewis et al.
patent: 6747421 (2004-06-01), Kohn
patent: 6853150 (2005-02-01), Clauberg et al.
patent: 6914365 (2005-07-01), Chou et al.
patent: 6930893 (2005-08-01), Vinciarelli
patent: 7019993 (2006-03-01), Vazquez
patent: 7049760 (2006-05-01), Dowe
patent: 7218533 (2007-05-01), Radecker et al.
patent: 7746671 (2010-06-01), Radecker et al.
patent: 2002/0024269 (2002-02-01), Nakatsuka et al.
patent: 2007/0024254 (2007-02-01), Radecker et al.
patent: 69604896 (1996-12-01), None
patent: 10143016 (2001-09-01), None
patent: 0782374 (1996-12-01), None
patent: 1146630 (2001-10-01), None
patent: 09-082479 (1995-09-01), None
Yin, et al.; “Digital Controller Design for Electronic Ballasts with Phase Control”; Sep. 7, 2004; IEEE Transactions on Power Electronics.
Hamamura, et al.; “Piezoelectric transformer AC-DC Converter Over a Worldwide Range of Input Voltage by Combined PWM and PFM Control”; Jun. 17-21, 2001; IEEE Power Electronics Specialists Conference, vol. 1, pp. 416-421.
Bisogno Fabio
Herfurth Michael
Radecker Matthias
Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung
Glenn Michael A.
Glenn Patent Group
Han Jessica
Infineon - Technologies AG
LandOfFree
Control circuit for a switch unit of a clocked power supply... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control circuit for a switch unit of a clocked power supply..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control circuit for a switch unit of a clocked power supply... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2694003