发明公开
- 专利标题: SCHALTUNGSANORDNUNG ZUM ÜBERSPANNUNGSSCHUTZ IN GLEICHSTROM-VERSORGUNGSKREISEN
- 专利标题(英): Circuit arrangement for surge protection in dc supply circuits
- 专利标题(中): 电路,用于直流电源电路浪涌保护
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申请号: EP14713824.2申请日: 2014-03-27
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公开(公告)号: EP2989700A1公开(公告)日: 2016-03-02
- 发明人: IGL, Peter , BROCKE, Ralph
- 申请人: Dehn + Söhne GmbH + Co. KG
- 申请人地址: Hans-Dehn-Strasse 1 92318 Neumarkt/Opf. DE
- 专利权人: Dehn + Söhne GmbH + Co. KG
- 当前专利权人: Dehn + Söhne GmbH + Co. KG
- 当前专利权人地址: Hans-Dehn-Strasse 1 92318 Neumarkt/Opf. DE
- 代理机构: Kruspig, Volkmar
- 优先权: DE202013101705U 20130422
- 国际公布: WO2014173613 20141030
- 主分类号: H01T4/20
- IPC分类号: H01T4/20 ; H01C7/12 ; H01T4/16
摘要:
The invention relates to a circuit arrangement for surge protection in DC supply circuits of electronic components or devices, in particular telecommunication devices such as transmitting and receiving antennas and/or mobile radio systems. The circuit consists of a coarse protection series circuit comprising spark gaps or gas discharge tubes between the input terminals and of capacitors connected in parallel to the spark gaps or gas discharge tubes. Furthermore, at least one fine protection element is provided between the output terminals, and a decoupling impedance is mounted between the coarse protection series circuit and the fine protection element. According to the invention, the capacitance values of the capacitors are multiple times greater than the capacitance values of the gas discharge tubes or spark gaps, the inductance of the decoupling impedance being chosen such that, in the event of a current rise, a sufficient voltage drop is produced to switch through the spark gaps or gas discharge tubes before the load limit of the fine protection element is reached.
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