Electric power conversion systems – Current conversion – With voltage multiplication means
Patent
1985-06-10
1986-07-15
Beha, Jr., William H.
Electric power conversion systems
Current conversion
With voltage multiplication means
363 70, 363128, 323272, H02M 717
Patent
active
046009825
ABSTRACT:
A circuit for converting an AC potential to a regulated DC potential which circuit consumes a minimum of power and is relatively inexpensive to build is described. A capacitor is used to couple the AC potential to a rectifier. The duration of current flow through the capacitor is controlled to obtain the regulation. An on or off switching device is used such as an SCR, eliminating the current flow regulation devices often used in regulative power supplies. The invented circuit is particularly useful for providing a regulated DC potential in a switching power supply.
REFERENCES:
patent: 3001120 (1961-09-01), Bereskin
patent: 3412314 (1968-11-01), Crane
patent: 3868562 (1975-02-01), Marshall
patent: 3978388 (1976-08-01), de Vries
patent: 4127895 (1978-11-01), Krueger
patent: 4245294 (1981-01-01), Brolin
patent: 4258309 (1981-03-01), Ohsaka et al.
Singer et al., "Power Regulation by means of a Switched Capacitor", Proc. IEE, vol. 119, No. 2, Feb. 1972, pp. 149-152.
Banthorpe, ". . . A Low Voltage Power Supply", Practical Electronics, Nov. 1975, vol. 11, No. 11, pp. 914-916.
Thom, "Capacitor Drops Voltage with Little Heat for Low Cost, Low Voltage Power Supply", Electronic Design, Nov. 22, 1975, p. 148.
Beha Jr. William H.
Rolm Corporation
Sterrett Jeffrey
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