Power supply operable with wide input range
CA 2280382 A1 · Owner: Mears, Gregory C. · Inventors: Mears, Gregory C.; Klippel, Todd W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An arrangement provides a power supply for low voltage circuits that is connected to, receive and store energy from a power electronics switch that is connected to an alternating, current supply. The power supply is operative over a wide range of input and regardless of the, operating status of the power electronics switch. For each half cycle of the alternating current, which the power electronic switch is to be rendered conductive the , arrangement delays for a, predetermined time duration the control of the power electronic switch at the zero crossing of the, half cycle. During the predetermined time duration the power supply charges , an energy storage device with sufficient energy …
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
- Filed August 16, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 16, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 16, 2021.
- 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.