Accession Number : ADD014881

Title :   Solid State Power Failure Squib Ignition Control.

Descriptive Note : Patent, Filed 27 Jun 88, patented 26 Sep 89,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Coleman, Jeffrey L

Report Date : 26 Sep 1989

Pagination or Media Count : 5

Abstract : A torpedo ejects lead weight at the conclusion of a practice run and is buoyed to the surface for recovery and reuse. A squib is initiated to release the weight by a control circuit which is actuated when the torpedo engine stops. An appropriately interconnected transistor and field effect transistor respond to built-up charges on three charge storage circuits to assure the proper initiation of the squib when the torpedo stops running. The stored energy thus is brought into effect to assure reliable separation and avoids the problems otherwise associated with conventional electromechanical relays.

Descriptors :   CIRCUITS, CONTROL, ELECTRIC CHARGE, ELECTRIC IGNITERS, ELECTRIC PRIMERS, ELECTROMECHANICAL WAVES, ENERGY STORAGE, ENGINES, FIELD EFFECT TRANSISTORS, RELIABILITY, SEPARATION, TORPEDOES, TRANSISTORS, WEIGHT

Subject Categories : Underwater Ordnance

Distribution Statement : APPROVED FOR PUBLIC RELEASE