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Regulated dc-to-dc converter for voltage step-up or step-down with input-output isolationA closed loop regulated dc-to-dc converter employing an unregulated two winding inductive energy storage converter is provided by using a magnetically coupled multivibrator acting as duty cycle generator to drive the converter. The multivibrator is comprised of two transistor switches and a saturable transformer. The output of the converter is compared with a reference in a comparator which transmits a binary zero until the output exceeds the reference. When the output exceeds the reference, the binary output of the comparator drives transistor switches to turn the multivibrator off. The multivibrator is unbalanced so that a predetermined transistor will always turn on first when the binary feedback signal becomes zero.
Document ID
19740002936
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Feng, S. Y.
(Duke Univ. Durham, NC, United States)
Wilson, T. G.
(Duke Univ. Durham, NC, United States)
Date Acquired
September 3, 2013
Publication Date
November 6, 1973
Subject Category
Thermodynamics And Combustion
Accession Number
74N11049
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-HQN-10792-1|US-PATENT-3,771,040
Patent Application
US-PATENT-APPL-SN-245063
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