Solid state high energy electrical switch for under-sea-water el

Details Solid state high energy electrical switch for under-sea-water el Solid state high energy electrical switch for under-sea-water el

1976-08-23

1977-08-02

Birmiel, Howard A.

Communications: electrical

Selective

Pulse responsive actuation

315238, 315240, 315241R, 315244, G01V 106, G01V 138

Patent

active

040400000

ABSTRACT:
An under-sea-water electric discharge generator includes a source of stored electrical energy connectable through solid state switch means to a cable extending to a number of pairs of electrodes to be towed under sea-water. The switch means comprises an inductor in series with five main branch circuits: a capacitor discharge branch includes a plurality of SCRs connected in series and a sub-branch of RC elements for gate control with one RC element across each but an end one of the SCRs; a reverse discharge branch includes a plurality of diode means, one across each SCR. Diodes across the gate-cathode circuit of each but said one SCR protect against reverse negative voltage during reverse discharge. Static, dynamic, and over voltage branches parallel the SCR branch with one element of each (resistor, RC element, thyrector) across each SCR.

REFERENCES:
patent: 3245032 (1966-04-01), Knott et al.

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