发明名称 |
Two-pole firing cct. for triac - has four-diode bridge with thyristor and Zener diode in one bridge diagonal |
摘要 |
<p>The firing circuit for a triac connects the turn-on capacitor to the triac gate and consists of a four-diode bridge with its second diagonal between the capacitor and the triac gate. The bridge first diagonal contains two transistors, acting as a thyristor, each with its collector coupled to the other one base, and its emitter coupled to one end of the diagonal. The turn-on voltage for the transistors is determined by a zener diode in series with a resistor in the first diagonal. The second transistor base is coupled to the zener-diode and resistor junction. The firing circuit can be easily integrated and has a low firing voltage.</p> |
申请公布号 |
DE2415631(A1) |
申请公布日期 |
1975.10.02 |
申请号 |
DE19742415631 |
申请日期 |
1974.03.30 |
申请人 |
LICENTIA PATENT-VERWALTUNGS-GMBH, 6000 FRANKFURT |
发明人 |
NUTZ, KARL-DIETHER, DIPL.-ING., 7100 HEILBRONN |
分类号 |
H02M5/257;(IPC1-7):02M1/08 |
主分类号 |
H02M5/257 |
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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