发明名称 |
CIRCUIT ARRANGEMENT OF GAS DISCHARGE LAMP |
摘要 |
<p>A circuit arrangement for A.C. operation of gas discharge lamps comprises a full-wave rectifier (1) connected to an alternating voltage source. The direct voltage is supplied to a combinatorial circuit part (3 to 8) in the form of a direct voltage converter, to which is connected a bridge circuit (9) which comprises four thyristors. The transverse branch of the bridge circuit includes the lamp (5). The full-wave rectifier (1) is followed by a smoothing capacitor (2) and an electronic switching element (14) is connected parallel to the bridge circuit (9). The switching element is switched to the conducting state in the vicinity of the zero passages of the input alternating voltage. As a result shortcircuits in the bridge circuit are avoided.</p> |
申请公布号 |
JPS62131498(A) |
申请公布日期 |
1987.06.13 |
申请号 |
JP19860276398 |
申请日期 |
1986.11.19 |
申请人 |
PHILIPS GLOEILAMPENFAB:NV |
发明人 |
HANSU GIYUNTAA GANSAA;RARUFU SHIEEFUAA;HANSU PEETAA SUTOOMUBERUGU |
分类号 |
H05B41/24;H05B41/292 |
主分类号 |
H05B41/24 |
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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