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公开(公告)号:US20130188289A1
公开(公告)日:2013-07-25
申请号:US13877423
申请日:2011-08-31
IPC分类号: H02H9/02
CPC分类号: H02H9/02 , H02M1/32 , H03K17/0822
摘要: A protection circuit 2 of a first embodiment comprises a resistance-variable switch 10, an overcurrent detection unit 20, a control voltage application unit 30, a capacity unit 40, a control terminal voltage change unit 50, and an outer terminal 11. The resistance-variable switch 10 has a control terminal 10a, a first terminal 10b, and a second terminal 10c. The control terminal voltage change unit 50 includes a switch 51 and a resistor 52 which are provided in series between the control terminal 10a of the resistance-variable switch 10 and a reference potential terminal.
摘要翻译: 第一实施例的保护电路2包括电阻可变开关10,过电流检测单元20,控制电压施加单元30,电容单元40,控制端电压改变单元50和外端子11.电阻 变量开关10具有控制端子10a,第一端子10b和第二端子10c。 控制端子电压改变单元50包括串联设置在电阻变化开关10的控制端子10a和基准电位端子之间的开关51和电阻器52。