Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1977-01-17
1978-10-17
Shoop, William M.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 37, 363 41, 363124, H02M 3335
Patent
active
041212827
ABSTRACT:
In a power supply circuit of the type including a first rectifier to be connected to an AC power source through a power switch, a transformer with primary and secondary windings, a second rectifier connected to the secondary winding of the transformer to provide a desired DC output voltage, a pulse width modulated signal producing circuit, and a transistor connected to the primary winding of the transformer to be supplied with the pulse width modulated signal so as to chop the direct current flowing through the transformer; there is further provided an oscillation circuit connected to the primary winding of the transformer for generating an oscillation signal for a predetermined period following closing of the power switch, and a third rectifier for producing a DC voltage in response to such oscillation signal, with the DC voltage from the third rectifier being supplied to the pulse width modulated signal producing circuit as an operating voltage therefor.
REFERENCES:
patent: 2922958 (1960-01-01), Dean
patent: 3349311 (1967-10-01), Dudley
patent: 3373334 (1968-03-01), Geisz et al.
patent: 3514688 (1970-05-01), Martin
patent: 3816809 (1974-06-01), Kuster
patent: 3909696 (1975-09-01), Katou et al.
patent: 4005351 (1977-01-01), Blum
patent: 4020408 (1977-04-01), Grant
patent: 4031453 (1977-06-01), Teuling
patent: 4037271 (1977-07-01), Keller
Eslinger Lewis H.
Shoop William M.
Sinderbrand Alvin
Sony Corporation
LandOfFree
Power supply circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power supply circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power supply circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-379856