Oscillators – Relaxation oscillators
Patent
1975-06-20
1976-06-29
Pellinen, A. D.
Oscillators
Relaxation oscillators
321 45R, 331113A, H02M 3335
Patent
active
039671828
ABSTRACT:
A regulated switched mode power supply comprising a first rectifier adapted to be coupled to a first source of alternating current potential to produce a first source of direct current potential, an oscillator coupled to the first source of direct current potential to produce a second source of alternating current and a second rectifier coupled to the oscillator to produce a second source of direct current potential. The second source of direct current potential being maintained relatively constant with a predetermined range of variations of magnitude of the first alternating current potential by controlling a first pulse width of the second alternating current potential in response to a correction signal. The correction signal is derived by comparing a reference potential and a third direct current potential which is developed across a storage capacitor, the third direct current potential being a function of the first pulse width and the magnitude of the first alternating current potential.
REFERENCES:
patent: 3243727 (1966-03-01), Miller
patent: 3443195 (1969-05-01), Hoffman et al.
patent: 3582754 (1971-06-01), Hoffmann et al.
patent: 3702963 (1972-11-01), Donovan
Pellinen A. D.
Rasmussen Paul J.
RCA Corporation
Whitacre Eugene M.
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