发明名称 |
Overcurrent protection circuit, integrated circuit, apparatus and computer program product |
摘要 |
An over-current protection circuit, including a current input for receiving a input current and a current output electrically connectable to a load, for outputting an output current proportional to the input current. A switch connects the current input to the current output. The switch has at least two switch states including an open state in which a current flow from the current input to the current output is interrupted and a closed state in which the current flow is enabled. The switch includes a switch control input for controlling the switch state. The circuit has a sensor for sensing a load current applied to the load and a controller connected to the sensor for controlling the switch to be in the open state when the sensed load current has exceeded a current threshold during a predetermined period of time, the predetermined period of time being dependent on an amount with which said sensed load current exceeds the threshold. |
申请公布号 |
US8284534(B2) |
申请公布日期 |
2012.10.09 |
申请号 |
US20100739084 |
申请日期 |
2010.04.21 |
申请人 |
GUILLOT LAURENT;DUPUY PHILIPPE;REITER JEFF;FREESCALE SEMICONDUCTOR, INC. |
发明人 |
GUILLOT LAURENT;DUPUY PHILIPPE;REITER JEFF |
分类号 |
H02H3/08;H02H9/02 |
主分类号 |
H02H3/08 |
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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