发明名称 |
Circuit arrangement for starting and operating gas discharge lamps |
摘要 |
A circuit arrangement for starting and operating gas discharge lamps with current of higher frequency comprises an electronic ballast unit connected to a direct voltage input source (2). An electronic switching element (3), which is controlled by a control device (8), is connected in series with an inductive element (4), and the discharge lamp (5). The lamp current flows through the inductive element from which a voltage is derived which is supplied to the control device as a supply direct voltage supply via a rectifier (14) and a smoothing capacitor (16). A first connection terminal of the smoothing capacitor is connected through a first ohmic resistor (18) to a first terminal of the direct voltage input source and a second connection of the capacitor is connected through the lamp (5) to a second terminal of the direct voltage input source.
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申请公布号 |
US4994716(A) |
申请公布日期 |
1991.02.19 |
申请号 |
US19860900191 |
申请日期 |
1986.08.25 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
GANSER, HANS-GUENTHER;SCHAEFER, RALF;STORMBERG, HANS-PETER |
分类号 |
H05B41/24;H05B41/19;H05B41/38 |
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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