Electric power conversion systems – Current conversion – With condition responsive means to control the output...
Patent
1993-08-04
1995-12-26
Sterrett, Jeffrey L.
Electric power conversion systems
Current conversion
With condition responsive means to control the output...
363 44, 363126, 323210, H02M 768
Patent
active
054793360
ABSTRACT:
A DC power-supply unit convening AC into DC power is provided to, when AC voltage and/or AC current of an AC power supply passes through a zero point, close a switch after a preset first delay time from a passing through time, and open the switch after a preset second delay time from a passing through time. The unit includes a rectifier switch for convening AC power output from the AC power supply into DC power, an inductive element connected to the rectifying element, a switching element connected to the inductive element, and the rectifying element, a smoothing unit connected in parallel with the switching element, and a switch control unit for controlling the switch according to the predetermined delay times.
REFERENCES:
patent: 4238710 (1980-12-01), Nelson
patent: 4251752 (1981-02-01), Stolz
patent: 4683529 (1987-07-01), Bucher
patent: 4688162 (1987-08-01), Mutch et al.
patent: 4719552 (1988-01-01), Albach et al.
patent: 4761725 (1988-08-01), Henze
patent: 4831508 (1989-05-01), Hunter
patent: 5006975 (1991-04-01), Neufeld
patent: 5038267 (1991-08-01), DeDoncker et al.
patent: 5134355 (1992-07-01), Hastings
patent: 5146398 (1992-09-01), Vila-Masot et al.
patent: 5181159 (1993-01-01), Peterson et al.
patent: 5367247 (1994-11-01), Blocher et al.
Ikuro Suga et al., "New Switching Method for Single-Phase AC to DC Converter", published by Mitsubishi Electric Corporation, Aug. 1993.
Shoji Iida, "On the Improvement of Power Factor and the Reduction of Harmonics in Thyristor Power Converters", Report of the Center for Research, vol. 3, No. 2, Dec. 1985, pp. 1-95.
"Electric Cooperative Research Paper", vol. 46, No. 2, p. 78 with partial English translation.
Iio Koji
Kato Yoshiro
Motoki Takahiro
Ohnishi Yoshitaka
Suga Ikura
Mitsubishi Denki & Kabushiki Kaisha
Sterrett Jeffrey L.
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