Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Patent
1996-09-17
1997-11-25
Berhane, Adolf
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
323282, 323906, G05F 110
Patent
active
056916272
ABSTRACT:
A full shunting BVL with current sense capability includes a pair of parallel connected switches that switch with the same duty cycle D/2 but 180 degrees out of phase to provide current from a power source through a coupled power inductor to a bus. A current transformer is provided with first and second windings connected in series with the pair of switches, respectively, and a third winding. The alternating conduction of current through the first and second windings produces a bidirectional voltage across the third sensor winding that automatically resets the current transformer's ferrite core during each cycle. As a result, the bidirectional voltage can be rectified to produce a current sense signal. The current sense signal is used to provide current-mode control to regulate the bus voltage and supply the demanded load current. The current sense signal can also be used to provide current limiting and current sharing, which allows multiple BVLs to be connected to the same solar array. This smooths the transitions in the load current supplied to the bus.
REFERENCES:
patent: 4357524 (1982-11-01), Apfelbeck et al.
patent: 4691159 (1987-09-01), Ahrens et al.
patent: 4713742 (1987-12-01), Parsley
patent: 4899269 (1990-02-01), Rouzies
patent: 5383109 (1995-01-01), Maksimovic et al.
patent: 5394075 (1995-02-01), Ahrens et al.
patent: 5489837 (1996-02-01), Arakawa
patent: 5504418 (1996-04-01), Ashley
patent: 5583412 (1996-12-01), Nielsen
Raymond B. Ridley, "A New, Continuous-Time Model For Current-Mode Control", IEEE Transactions on Power Electronics, vol. 6, No. 2, Apr. 1991, pp. 271-280.
"Unitrode Integrated Circuits", Product and Applications Handbook, 1995, pp. B173-B179.
Berhane Adolf
Denson-Low Wanda K.
Gudmestad Terje
Hughes Electronics
Leitereg Elizabeth E.
LandOfFree
Push-pull full shunt switching bus voltage limiter with current does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Push-pull full shunt switching bus voltage limiter with current , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Push-pull full shunt switching bus voltage limiter with current will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2109723