发明名称 |
Load driving device and electrical device using the same |
摘要 |
A load driving device according to the present invention includes: a first current generation section generating a first current in accordance with a driving current of a load; a second current generation section generating a predetermined second current; an integration section charging and discharging a capacitor in accordance with magnitude relation between the first current and the second current; a comparison section comparing a terminal voltage of the capacitor and a predetermined threshold voltage; and an output section generating a protection signal based on output logic of the comparison section. Such configuration permits appropriately preventing load burnout.
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申请公布号 |
US7839610(B2) |
申请公布日期 |
2010.11.23 |
申请号 |
US20070865892 |
申请日期 |
2007.10.02 |
申请人 |
ROHM CO., LTD. |
发明人 |
YAMAMOTO SEIICHI;OTA TAKAHIRO |
分类号 |
H02H7/08;H02H3/08;H02H7/04 |
主分类号 |
H02H7/08 |
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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