发明名称 |
Device for limiting alternating electric currents, in particular in the event of a short circuit |
摘要 |
A device for limiting an alternating electric current includes a least one passive semiconductor configuration and a protection circuit. The semiconductor configuration is configured such that when a forward voltage is applied thereto, a forward current flows through the semiconductor configuration. The forward current increases monotonously with the forward voltage up to a saturation current at an associated saturation voltage. At a forward voltage above the saturation voltage, the forward current is limited to a limiting current that is smaller than the saturation current. The semiconductor configuration is further configured such that when a reverse voltage is applied, a reverse current flows through the passive semiconductor configuration. The reverse current increases at a first rate monotonously with the reverse voltage up to a given reverse breakdown voltage and, when exceeding the reverse breakdown voltage, the reverse current rises at a second rate greater than the first rate due to a charge carrier breakdown. The protection circuit includes diodes for preventing the passive semiconductor configuration from being driven to the reverse breakdown voltage by a half wave of an alternating current in the reverse direction.
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申请公布号 |
US6188555(B1) |
申请公布日期 |
2001.02.13 |
申请号 |
US19990426417 |
申请日期 |
1999.10.25 |
申请人 |
SICED ELECTRONICS DEVELOPMENT GMBH & CO. KG |
发明人 |
MITLEHNER HEINZ;STEPHANI DIETRICH;BARTSCH WOLFGANG |
分类号 |
H01L27/04;H01L21/822;H01L29/24;H01L29/808;H01L29/86;H02H9/02;(IPC1-7):H02H3/18 |
主分类号 |
H01L27/04 |
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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