发明名称 |
CONTROL CIRCUIT FOR AT LEAST ONE LIGHT-EMITTING DIODE |
摘要 |
<p>A series connection consisting of a diode and one of two transistors of a transistor push-pull circuit is connected in parallel to the feed current path for a light-emitting diode and a capacitor is interconnected between the junction of the push-pull transistors and the junction between the light-emitting diode and an additional diode which is present in the feed current path. When the transistor in the series connection is in a blocking state, the light-emitting diode receives feed current and is thus switched to a light-emitting state. The capacitor causes a current pulse to be superimposed on the feed current during switchover for rapidly driving the light-emitting diode by decreasing the time span required by the light-emitting diode to reach a condition of maximum light emission.</p> |
申请公布号 |
EP0070032(A3) |
申请公布日期 |
1983.07.20 |
申请号 |
EP19820106268 |
申请日期 |
1982.07.13 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
GOERNE, JAN, DIPL.-ING.;TRAULSEN, WILFRIED, DIPL.-ING. |
分类号 |
G08B5/36;G09G3/14;H03K17/0416;H03K17/60;H03K17/78;H04B10/50;(IPC1-7):03K17/60;03K17/78 |
主分类号 |
G08B5/36 |
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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