Full wave rectifier having an operational amplifier
CA 1196953 A · Owner: Nippon Electric Co. Ltd. · Inventors: Makabe, Takayoshi; Kimura, Tadakatsu; Kuraishi, Yoshiaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A full wave rectifier includes an operational amplifier having a non-inverting grounded input, an inverting input and an output. A first resistor is connected between the inverting input and the input terminal of the rectifier and a second resistor having the same resistance as the first resistor is connected between the inverting input and the output terminal of the rectifier. These two resistors serve as a gain setter for the rectifier. A depletion type MOS FET is connected between the output of the operational amplifier and the output terminal of the rectifier. The invention increases the rectification range achieved by conventional rectifiers which use a diode at 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 November 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 19, 2002.
- 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.