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EP0167929A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Semiconductor power switch with a thyristor

Assignee: Siemens AG
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Filing: 1985-06-26
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Granted: —
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Expires: 2005-06-26
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Abstract

Abstract Translated from German Der Leistungsschalter besteht aus einem asymmetrisch sperrenden Thyristor (1) (ASCR), dem eine Diode (2) in Reihe geschaltet ist. Sowohl ASCR als auch Diode benötigen gegenüber einem für gleiche Sperrspannung in Rückwärtsrichtung (URRM) ausgelegten symmetrisch sperrenden Thyristor jeweils etwa nur die halbe Mittelzonendicke. Damit ergibt sich für die Reihenschaltung eine wesentlich geringere Sperrverzögerungsladung (Qrr). The circuit breaker consists of an asymmetrically blocking thyristor (1) (ASCR), to which a diode (2) is connected in series. Both the ASCR and the diode require only half the central zone thickness compared to a symmetrically blocking thyristor designed for the same reverse reverse voltage (URRM). This results in a significantly lower blocking delay charge (Qrr) for the series connection.

Inventors

  • 👤 Erhard Dipl.-Ing. Lehmann

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 10:25
CPC Classifications
H; H10; H10W; H10W90/00; H10D; H10D84/00; H10D84/60; H10W90/701; H10W90/731; H10W90/732

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

DE2447621A1 Cited
FR2412169A1 Cited
US4236169A Cited

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