Switching power source means
CA 1325658 C · Owner: Kyushu University · Inventors: Harada, Kosuke; Sakamoto, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A switching power source means comprises a DC voltage source, a first switch element a low-pass, filter connectable to the DC voltage source through the first switch element, and a second switch element connected to input end of the low-pass filter the, switch elements being coupled to the DC voltage source either directly or through a transformer and being operable in such a manner that an output of DC or AC of a desired frequency can be derived across output end of the low-pass filter. With the invention a reactor is, connected in parallel across the input end of the lowpass filter, which reactor being adapted to charge and discharge parasitic capacitors 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 December 28, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 28, 2010.
- 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.