专利内容由知识产权出版社提供
专利名称：CIRCUIT ARRANGEMENT FOR OPERATING A
HIGH-PRESSURE GAS DISCHARGE LAMP ONALTERNATING CURRENT
发明人：KERN, ROBERT申请号：EP96909049.0申请日：19960416公开号：EP08406A1公开日：19980610
摘要：A circuit arrangement for generating an a.c. voltage, especially the arc dropvoltage of a high-pressure gas discharge lamp in a motor vehicle headlamp, contains aconverter (1) with a primary winding (2) and a secondary winding (3) closely coupledtogether. These two windings form an auto-transformer. One of the terminals of theprimary winding (2) is connected to a d.c. voltage source (4). Its other terminal, theintermediate tapping (5) of the converter, is connected on one side to the secondarywinding and on the other to a controlled switch (6). The controlled switch connects theintermediate tapping to the negative pole of the d.c voltage source. The second terminalof the secondary winding (3) is connected via a capacitor (7) to a high-pressure gasdischarge lamp (8) forming the output load. The output a.c. voltage (UA), i.e. the arc dropvoltage, is across it. The switch is damped by the series connection of a resistor (10) and acapacitor (11).
申请人：ROBERT BOSCH GMBH
地址：Postfach 30 02 20 70442 Stuttgart DE
国籍：DE
更多信息请下载全文后查看
