High power solid state relay with input presence and polarity in

Details High power solid state relay with input presence and polarity in High power solid state relay with input presence and polarity in

1992-12-28

1994-08-16

Callahan, Timothy P.

Electrical transmission or interconnection systems

With nonswitching means responsive to external nonelectrical...

Temperature responsive

307236, 307311, H03K 1770, H03K 1778

Patent

active

053389913

ABSTRACT:
A solid state relay having an input circuit and a triac Darlington circuit coupled by a phototriac circuit. The input circuit having a bipolar indicator lamp for identifying the polarity and presence of an input voltage. The phototriac circuit and the triac Darlington circuit each having bipolar indicator lamps to indicate ON/OFF operation of respective triacs therein.

REFERENCES:
patent: 4443712 (1984-04-01), Gokitg
patent: 4594515 (1986-06-01), Hummel
patent: 4658145 (1987-04-01), Awaji
patent: 4745311 (1988-05-01), Iwasaki
patent: 4751401 (1988-06-01), Beigel et al.
patent: 5053907 (1991-10-01), Nishi et al.
patent: 5079457 (1992-01-01), Lu
patent: 5162682 (1992-11-01), Lu
patent: 5216203 (1993-06-01), Lu

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