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Title: Converter power supply apparatus

Abstract: A converter power supply apparatus includes a direct current power supply and an oscillator circuit comprising a feedback transformer and two semiconductor switching devices arranged to be turned on alternately to produce alternating currents in primary winding means of the feedback transformer and in a load circuit. Circuit means couple the load circuit to secondary winding means of the feedback transformer so as to augment control currents fed to the switching devices. Circuit means may be provided to generate a starting pulse and to feed this pulse to the oscillator circuit to cause oscillation to recommence after disconnection of the load circuit. The direct-current source may be provided by rectification of an A.C. input and this input may be controlled in accordance with output voltage of the converter to stabilize the output voltage.


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Inventors: Crowe, John E. (Bishop's Stortford, GB)
Shanley, John J. (Bishop's Stortford, GB)

Application Number: 914897
Filing Date: 1978-06-12
Publication_date: 1979-08-07
Assignee: Gould Advance Limited (Essex, GB2)
Primary Class(es): 363/49 363/97, 363/132, 363/133
Other Classes:
US Patent Ref:
2997664Aug, 1961Jensen331/113.
3411108Nov, 1968Phillips363/49.
3691450Sep, 1972Cox363/131.
4039921Aug, 1977Yoshida et al.363/22.
4047089Sep, 1977Suzuki et al.363/49.

Other Refs: 2453
Mar, 1967JP

Primary Examiner: Shoop, William M.
Assistant Examiner:
Attorney: Laubscher; Lawrence E.