发明名称 |
DIRECTION INDICATION LAMP CONTROL DEVICE, DIRECTION INDICATION DEVICE AND WIRE DISCONNECTION DETECTION METHOD OF THE DIRECTION INDICATION DEVICE |
摘要 |
A direction indication lamp control device includes: a current control element including an end which outputs a drive current having a magnitude corresponding to amplitude of a pulse signal; a current clamp unit which limits the drive current to a current upper limit value; a voltage clamp unit which limits a reference voltage to a voltage upper limit value; and a wire disconnection detection unit which outputs a wire disconnection detection signal in a case where the drive current corresponding to the pulse wave of the pulse signal is equal to or less than a wire disconnection detection value, or in a case where the reference voltage is equal to the voltage upper limit value. The current upper limit value is smaller than the drive current flowing through a direction indication lamp when the reference voltage is the voltage upper limit value.
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申请公布号 |
US2013140991(A1) |
申请公布日期 |
2013.06.06 |
申请号 |
US201113812098 |
申请日期 |
2011.10.31 |
申请人 |
KUBOTA KENICHI;ONO HIDEYUKI;SHINDENGEN ELECTRIC MANUFACTURING CO., LTD. |
发明人 |
KUBOTA KENICHI;ONO HIDEYUKI |
分类号 |
H05B37/03 |
主分类号 |
H05B37/03 |
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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