Load-dependent current limit for the power supply of a multi-module electronic system
CA 1293532 C · Owner: Tektronix, Inc. · Inventors: Winslow, Jeffrey K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A load-dependent current limiter for the power supply of a multi-module electronic system has a programming resistor in each module connected between the power supply voltage and a reference bus. The current through each programming resistor is proportional to the current requirements of the module. The voltage of the reference bus which is, proportional to the total current through all the programming resistors, is compared to the voltage developed across a sensing resistor by the total power supply current. When the sense voltage exceeds the reference voltage, indicative of tapping excess power a signal is sent from the comparator to shutdown the power supply.
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 December 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 24, 2008.
- 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.