Invention Grant
- Patent Title: Method for regulating temperature
- Patent Title (中): 调节温度的方法
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Application No.: US12397444Application Date: 2009-03-04
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Publication No.: US08217706B2Publication Date: 2012-07-10
- Inventor: Alan R. Ball , Stephen P. Robb
- Applicant: Alan R. Ball , Stephen P. Robb
- Applicant Address: US AZ Phoenix
- Assignee: Semiconductor Components Industries, LLC
- Current Assignee: Semiconductor Components Industries, LLC
- Current Assignee Address: US AZ Phoenix
- Agent Rennie William Dover
- Main IPC: H01L35/00
- IPC: H01L35/00

Abstract:
A method and circuit for managing thermal performance of an integrated circuit. Temperature sensing circuits and a plurality of power FETs that are coupled together in parallel are manufactured from a semiconductor substrate. Each temperature sensing circuit monitors the temperature of the portion of the semiconductor substrate near or including a corresponding power FET. When the temperature of the semiconductor substrate near one or more of the power FETs reaches a predetermined value, the corresponding temperature sensing circuit reduces a voltage appearing on the gate of the power FET. The reduced voltage increases the on-resistance of the power FET and channels a portion of its current to others of the plurality of power FETs. The power FET continues operating but with a reduced current flow. When the temperature of the semiconductor substrate falls below the predetermined value, the gate voltage of the power FET is increased to its nominal value.
Public/Granted literature
- US20090160528A1 METHOD FOR REGULATING TEMPERATURE Public/Granted day:2009-06-25
Information query
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