3571697 is referenced by 37 patents and cites 6 patents.

A DC step-up voltage regulator with a series arrangement of a raw DC source and an energy storing inductor which are alternately connected to a low impedance circuit to build up the inductor current and to an output circuit which includes a capacitor which is charged by the current flow from the inductor. A control circuit varies the amount of inductor current buildup needed to hold the output voltage constant and also provides periodic and constant time intervals of sufficient duration to discharge the inductor current into the capacitor.

Variable impedance switching regulator
Application Number
Publication Number
Application Date
December 16, 1968
Publication Date
March 23, 1971
Phillips Donald E
Collins Radio Company
G05f 01/56
H02M 03/04
H02M 03/156
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