发明名称 |
Current sensing method and current sensing device, power conversion device using this current sensing device, and vehicle using this power conversions device |
摘要 |
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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申请公布号 |
US2006103409(A1) |
申请公布日期 |
2006.05.18 |
申请号 |
US20050206861 |
申请日期 |
2005.08.19 |
申请人 |
HITACHI, LTD. |
发明人 |
SHIGETA SATORU;FUJINO SHINICHI;HASHIMOTO KEITA;SETO SADASHI |
分类号 |
G01R31/26;H02M1/00;H02M7/48;H02P23/00;H02P27/06 |
主分类号 |
G01R31/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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