Redundant DC power supply for analog computers and the like
AssigneeThe Boeing Company
InventorsMarion M. Bishop, Walter Robert Weist
Life of this patent
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Abstract
A power supply system for analog computers and the like where reliability and fail-proof performance are paramount. At least two separate power supplies are connected in parallel to a plurality of operational amplifiers contained in separate channels of an analog control system. Isolation diodes are used to prevent a short-circuit in one power supply from being reflected into the other supply and causing loss of both.
Claims3
A power supply system for operational amplifiers and other circuit components utilized in a control system employing a plurality of signal channels, comprising a first separate direct current power supply, a second separate direct current power supply, both of said power supplies having a terminal which is positive with respect to a point of common potential and a terminal which is negative with respect to the same point of common potential, diodes poled to conduct current in one direction connecting said positive terminals to terminals in all of said channels adapted for connection to a source of positive potential, and the diodes poled to conduct current in the opposite direction connecting said negative terminals to terminals in all of said channels adapted for connection to a source of negative potential whereby said diodes are connected in such a manner so as to prevent a short in one power supply from draining current of both positive and negative potential from another power supply.
Dependencies are inferred from the claim text.