Switching device
CA 1106004 A · Owner: Furman, Anatoly V. · Inventors: Podboronov, Boris P.; Furman, Anatoly V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
According to the invention a switching device based, on an active switching element is built around an operational amplifier featuring two switching components connected in series in the negative feedback circuit. The positive feedback circuit of the operational amplifier comprises a voltage divider having two resistors and an operational amplifier whose non-inverting input is coupled to the centre tap of the power sources of both operational amplifiers and the output busbar. The inverting input of the operational amplifier of the voltage divider is connected to the non-inventing input of the operational amplifier of the active switching element whose output is coupled to the output of the …
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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 July 28, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 28, 1998.
- 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.