Primary switched-mode power supply unit
CA 1234210 A · Owner: Siemens Aktiengesellschaft · Inventors: Segger, Bernd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A primary switched-mode power supply unit having an auxiliary power supply for a control unit controlling a primary power circuit breaker connected in series with a first primary winding and a primary voltage regulator connected to the control unit. The auxiliary power supply has a secondary primary winding across which a series circuit of a diode and a capacitor is connected. A current limiting circuit breaker is connected between the auxiliary voltage input of the control unit and a ground, the actuating input of said current limiting circuit breaker being connected to an output of an over current controller.
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 March 15, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 15, 2005.
- 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.