Invention Grant
- Patent Title: Overcurrent protection circuit and in-vehicle display device
- Patent Title (中): 过流保护电路和车载显示装置
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Application No.: US12892103Application Date: 2010-09-28
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Publication No.: US08379360B2Publication Date: 2013-02-19
- Inventor: Kazuaki Murota
- Applicant: Kazuaki Murota
- Applicant Address: JP Kobe
- Assignee: Fujitsu Ten Limited
- Current Assignee: Fujitsu Ten Limited
- Current Assignee Address: JP Kobe
- Agency: Oliff & Berridge, PLC
- Priority: JP2009-228214 20090930
- Main IPC: H02H9/02
- IPC: H02H9/02
Abstract:
An overcurrent protection circuit is provided. An overcurrent detecting element is connected between a power source and a load and detects an overcurrent flowing through the load. A main switch element is connected between the load and the overcurrent detecting element and controls flow of current to the load according to a voltage applied between a control end and an input end of the main switch element. The main switch element stops the flow of current to the load when a predetermined time is elapsed after the overcurrent detecting element detects the overcurrent flowing through the load. A first switch element has an output end connected to the control end of the main switch element. A current flows to the first switch when the overcurrent detecting element detects the overcurrent flowing through the load.
Public/Granted literature
- US20110075307A1 OVERCURRENT PROTECTION CIRCUIT AND IN-VEHICLE DISPLAY DEVICE Public/Granted day:2011-03-31
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