Patent
1974-06-26
1976-06-15
Shoop, William M.
321 10, 321455, H02M 3335
Patent
active
039639738
ABSTRACT:
A DC converter including a transistor switch and a transformer having first and second windings connected so that the transistor passes asymmetrical current pulses to the first winding. When the switch opens, asymmetrical current pulses again pass through the first winding and through a gating circuit connected thereto. The instantaneous voltage across the second winding is used as the drive voltage for the transistor switch to prevent transformer saturation.
REFERENCES:
patent: 3388309 (1968-06-01), Banks et al.
patent: 3526823 (1970-09-01), Genuit
patent: 3639826 (1972-02-01), Grundberg
patent: 3697852 (1972-10-01), Gerbitz
patent: 3781637 (1973-12-01), Potter
patent: 3816809 (1974-06-01), Kuster
IBM Technical Disclosure Bulletin, vol. 13, No. 9, pp. 2767, 2768, Feb. 1971.
Franzblau Bernard
Shoop William M.
Trifari Frank R.
U.S. Philips Corporation
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