Electrical transmission or interconnection systems – Plural supply circuits or sources
Patent
1988-06-21
1989-10-31
Shoop, Jr., William M.
Electrical transmission or interconnection systems
Plural supply circuits or sources
307 34, 307 64, 307 66, 307 82, 307 87, 361 93, 323906, H02M 3335, H02J 100
Patent
active
048779725
ABSTRACT:
A modular power supply system in which a plurality of power supply modules connected in parallel to a load contribute equal currents, even if one or more of the power supply modules fails. A first order fault tolerant modular power supply system includes three power supply modules (38, 40 and 42) connected in parallel to a load (32). The output current from each of the power supply modules is separately compared to the output current from one of the other power supply modules in a loop arrangement, using three control circuits (64, 66 and 68). A signal indicative of the current contributed by each pair of the power supply modules is input to the control circuit, producing a differential output signal used as a reference to control the output current from each of the power supply modules. Failure of any one of the modules does not affect the ability of the system to continue to supply substantially equal currents from the remaining two operating modules, so long as the total rated capacity of the power supply modules continuing to operate is not exceeded. Second and third order fault tolerant modular power supply systems (400 and 500) are also disclosed.
REFERENCES:
patent: 3156855 (1964-11-01), Righton et al.
patent: 3219913 (1965-11-01), Brown
patent: 3353092 (1967-11-01), Rubin
patent: 3480789 (1969-11-01), Binckley et al.
patent: 3600599 (1971-08-01), Wright et al.
patent: 3652798 (1972-03-01), McNeilly et al.
patent: 3696286 (1972-10-01), Ule
patent: 3986101 (1976-10-01), Koetsch et al.
patent: 4048446 (1977-09-01), Hafner et al.
patent: 4074146 (1978-02-01), Buonavita
patent: 4075440 (1978-02-01), Laubengayer
patent: 4136286 (1979-01-01), O'Halloran et al.
patent: 4186336 (1980-01-01), Weinberg et al.
patent: 4270165 (1981-05-01), Carpenter et al.
patent: 4359679 (1982-11-01), Regan
patent: 4392199 (1983-07-01), Schmitter et al.
patent: 4461690 (1984-07-01), Rolff et al.
patent: 4476399 (1984-10-01), Yoshida et al.
patent: 4539486 (1985-09-01), Saito et al.
patent: 4539487 (1985-09-01), Ishii
patent: 4645940 (1987-02-01), Wertheim
patent: 4659942 (1987-04-01), Volp
patent: 4672226 (1987-06-01), Sutherland
patent: 4761705 (1988-08-01), Larry et al.
patent: 4766364 (1988-08-01), Biamonte et al.
Smith Raldon M.
Sobhani Seyd M.
Ip Paul
Shoop Jr. William M.
The Boeing Company
LandOfFree
Fault tolerant modular power supply system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fault tolerant modular power supply system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fault tolerant modular power supply system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-627585