Solid state relay having a thyristor discharge circuit
CA 1285033 C · Owner: Yoshino, Tetsuo · Inventors: Ogawa, Kenji; Kobayashi, Shigeki; Yoshino, Tetsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Solid State Relay Having a Thyristor Discharge Circuit" ABSTRACT OF THE DISCLOSURE, A solid state relay comprises a light-emitting diode (2) for generating radiation in response to forward current supplied thereto and an array (5) of photodiodes optically coupled to the light-emitting diode for generating a voltage in response to radiation from the light-emitting diode. A thyristor (18) is provided having anode and cathode coupled to the gate and substrate electrodes (11a 11b, 14a, 14b) of, a field-effect transistor respectively. A gate electrode, (21) of the thyristor is connected to one end (7) of the photodiode array (5) and the cathode of the thyristor is further connected to the other …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted June 18, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 18, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.