The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 09, 2012
Filed:
Oct. 30, 2007
Laurent Guillot, Seysses, FR;
Philippe Dupuy, Toulouse, FR;
Jeff Reiter, Dearborn, MI (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
An over-current protection circuit, including a current input for receiving a input current and a current output electrically connectable to a load, for outputting an output current proportional to the input current. A switch connects the current input to the current output. The switch has at least two switch states including an open state in which a current flow from the current input to the current output is interrupted and a closed state in which the current flow is enabled. The switch includes a switch control input for controlling the switch state. The circuit has a sensor for sensing a load current applied to the load and a controller connected to the sensor for controlling the switch to be in the open state when the sensed load current has exceeded a current threshold during a predetermined period of time, the predetermined period of time being dependent on an amount with which said sensed load current exceeds the threshold.