Thyristor switching matrix

Details Thyristor switching matrix Thyristor switching matrix

1978-06-20

1980-02-26

Brown, Thomas W.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340166R, H04Q 352

Patent

active

041907434

ABSTRACT:
In a thyristor switching matrix, each horizontal line (Hl to Hm) is connected via a protective device (e.g. A1, A2) to a DC source--U. The protective device (A1, A2) normally isolates the horizontal line. When a connection point (e.g. Pll) closes a signal is applied to the protective device (A1, A2) and the horizontal line (Hl) is brought to a potential sufficient for the trigger current through any of the thyristors connected to the horizontal line (Hl) to be lower than the minimum trigger current required for firing them; thus, the connecting in parallel of several vertical lines (e.g. V1, V2) is avoided.

REFERENCES:
patent: 3141067 (1964-07-01), Spandorfer
patent: 3801749 (1974-04-01), Jovic
patent: 3828314 (1974-08-01), Bradbery et al.
patent: 3976845 (1976-08-01), Ashley
patent: 3993978 (1976-11-01), Hollis
patent: 4025726 (1977-05-01), Matsuyama et al.
patent: 4113989 (1978-09-01), Schneider

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