Boosting circuit
CA 1060543 A · Owner: Kabushiki Kaisha Daini Seikosha · Inventors: Asano, Kazuhiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides an inexpensive voltage boosting circuit for electronic watches calculators, etc. which, may readily be miniaturized by integrated circuit techniques. The circuit comprises a plurality of boosting units connected in series each of such units comprising a capacitor having first and second terminals and a first field-effect transistor. The field-effect transistor of a first unit is connected between a terminal of the capacitor and a terminal adapted for connection to one side of a power source so as to connect the capacitor terminal with the power source when the transistor is conductive. The first field-effect transistor of a succeeding unit is connected between …
Read the whole patent
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 August 14, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 14, 1996.
- 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.