Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Reexamination Certificate
2007-12-18
2007-12-18
Nguyen, Ha Tran (Department: 2829)
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
Reexamination Certificate
active
11206861
ABSTRACT:
A current sensing device for sensing current flowing through a MOSFET has a voltage divider circuit composed of a series circuit of a first resistor and a second resistor having different resistance temperature coefficients, with a voltage division ratio designed to change depending on temperature. The sensing device is connected between a source and a drain of said MOSFET. A sensing circuit takes out the source-to-drain voltage divided with the voltage divider to sense the current flowing through the MOSFET.
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European Search Report for EP 05 01 7864.9 dated Mar. 2, 2006.
Fujino Shin-ichi
Hashimoto Keita
Seto Sadashi
Shigeta Satoru
Crowell & Moring LLP
Hitachi , Ltd.
Nguyen Ha Tran
Vazquez Arleen M.
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