Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2007-07-09
2011-10-18
Laxton, Gary L (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
C363S021070, C363S056110, C361S018000, C361S090000
Reexamination Certificate
active
08040699
ABSTRACT:
A low-cost integrated circuit is used as a secondary side constant voltage and constant current controller. The integrated circuit has four terminals and two amplifier circuits. A first amplifier circuit is used to sense a voltage on a FB terminal and in response to cause a first current to flow through an OPTO terminal. A second amplifier circuit is used to sense a voltage between a SENSE terminal and a SOURCE terminal and in response to cause a second current to flow through the same OPTO terminal. The FB terminal is used for output voltage feedback and is also used to supply power onto the integrated circuit. The SOURCE terminal is used for output current feedback and is also used as power supply return for the integrated circuit. The cost of the integrated circuit is reduced by having only four terminals.
REFERENCES:
patent: 5291386 (1994-03-01), Wu
patent: 5313381 (1994-05-01), Balakrishnan
patent: 5729443 (1998-03-01), Pavlin
patent: 6229366 (2001-05-01), Balakirshnan et al.
patent: 6429709 (2002-08-01), Hall et al.
patent: 6775164 (2004-08-01), Wong et al.
AP4300 Data Sheet, “Dual Op Amp and Voltage Reference,” Advanced Analog Circuits, BCD Semiconductor Manufacturing Limited, Apr. 2005 Rev. 1.2; 12.
“TSM1052: CC/CV controller for chargers and adapters” application note, STMicroelectronics, Feb. 2007, from www.st.com/powermanagement; 2 pages.
TSM1011 Data Sheet, “Constant Voltage and Constant Current Controller for Battery Chargers and Adaptors,” Advance Data, STMicroelectronics, Feb. 2003, from www.datasheetcatalog.com; 9 pages.
TSM1051 Data Sheet, “Constant Voltage and Constant Current Controller for Battery Chargers and Adaptors,” STMicroelectronics, Jan. 2002, from www.datasheetcatalog.com; 10 pages.
Grant Matthew
Huynh Steven
Kunst David J.
Tao Zhibo
Active-Semi, Inc.
Imperium Patent Works
Laxton Gary L
Quddus Nusrat
Wallace Darien K.
LandOfFree
Secondary side constant voltage and constant current controller does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Secondary side constant voltage and constant current controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Secondary side constant voltage and constant current controller will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4266670