Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1995-04-14
1996-08-06
Nguyen, Matthew V.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 21, H02M 3335
Patent
active
055440320
ABSTRACT:
Disclosed is a switching power supply which can realize the saving of space and low-cost manufacturing. On-off control of FET (3), intermittently applies D.C. input voltage V-IN to the primary windings (1A, 2A), of transformers (1,2). Current detection circuit (15) detects the voltage drop caused by the resistance of the secondary windings (1B,2B) to produce output current detection signals in proportion to the load current (1D). The resistance of the secondary windings (1B,2B) of transformers (1,2) can be employed as a current detector, whereby saving of space and low-cost manufacturing of power supplies can be realized.
REFERENCES:
patent: 4056693 (1977-11-01), Bosik et al.
patent: 4612610 (1986-09-01), Farnsworth et al.
patent: 4754385 (1988-06-01), McDade et al.
patent: 4939633 (1990-07-01), Rhodes et al.
patent: 4952819 (1990-08-01), Herrmann
patent: 4956761 (1990-09-01), Higashi
patent: 5036452 (1991-07-01), Loftus
patent: 5172308 (1992-12-01), Tohya
patent: 5233287 (1993-08-01), Lenk
Patent Abstracts of Japan JP-A-03 178 555 (Matsushita Electric Ind. Co.) 2 Aug. 1991, vol. 15, No. 428 (E-1128) 30 Oct. 1991.
Patent Abstracts of Japan JP-A-01 194 862 (TDK Corp.) 4 Aug. 1989, vol. 13, No. 490 (E-841) 7 Nov. 1989.
Database WPI Section EI, Week 8431, Derwent Publications Ltd., London, GB; Class S, AN 84-194104 Y. U. Kashitsin et al. "Current Sensor" & SU-A-1 057 788 (Relay Eng. Res. Des. C.) 30 Nov. 1983.
Nemic-Lambda Kabushiki Kaisha
Nguyen Matthew V.
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