发明授权
US08625247B2 Protective circuit for the input-side protection of an electronic device operating in the maximum frequency range
有权
用于在最大频率范围内工作的电子设备的输入侧保护的保护电路
- 专利标题： Protective circuit for the input-side protection of an electronic device operating in the maximum frequency range
- 专利标题（中）： 用于在最大频率范围内工作的电子设备的输入侧保护的保护电路
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申请号： US12681705申请日： 2007-10-03
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公开(公告)号： US08625247B2公开(公告)日： 2014-01-07
- 发明人: Uhland Goebel , Mischa Graeni , Gregor Kuehne , Beat Herrmann , Holger Karstensen , Frank Felbier
- 申请人： Uhland Goebel , Mischa Graeni , Gregor Kuehne , Beat Herrmann , Holger Karstensen , Frank Felbier
- 申请人地址： CH
- 专利权人： Huber + Suhner AG
- 当前专利权人： Huber + Suhner AG
- 当前专利权人地址： CH
- 代理机构： Ostrolenk Faber LLP
- 国际申请： PCT/EP2007/008583 WO 20071003
- 国际公布： WO2009/043364 WO 20090409
- 主分类号： H02H3/22
- IPC分类号： H02H3/22
摘要：
The invention relates to a protective circuit (10) for the input-side protection of an electronic device (30) operating in the maximum frequency range from high-power interfering impulses in the working frequency range of the device (30), said protective circuit (10) between an input (11) and an output (18) comprising a first limiting circuit (12) having at least one gas discharge tube (GDT1, GDT2) for limiting high interference powers and a second limiting circuit (14, 16) disposed behind the first limiting circuit (12), said second limiting circuit having semi-conductor components (D1, . . . , D4) for limiting smaller interference powers. Protection from particularly high interference powers is achieved in that the first limiting circuit (12) comprises two gas discharge tubes (GDT1, GDT2) connected in parallel and preferably identical.
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