Low power mode and feedback arrangement for a switching power converter
CA 2398504 A1 · Owner: Hwang, Jeffrey · Inventors: Hwang, Jeffrey
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A low power mode and feedback arrangement for a switching power converter. Two or more main power switches (M1, M2), such as transistors transfer energy , from a supply to load (104) by their opening and closing. When the load (104) requires a relatively low power level, this condition is detected. In response, one or more of the transistor switches (M1 M2) is disabled from , switching and the reduced power requirements of the load (104) are handled by the remaining one or more transistor switches (M1 M2). As a result, switching , losses are reduced. This is because parasitic gate capacitance and onresistance associated with the disabled switches no longer consume power from the power …
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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
- Filed January 31, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 31, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 31, 2023.
- 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.