2023年7月9日发(作者：)

专利内容由知识产权出版社提供专利名称：METHOD FOR CONTROLLING ANELECTRICAL LIGHT SOURCE BY PULSEWIDTH MODULATION发明人：JOOS, ULI,VOSS, CHRISTIAN,SCHNELL,JOSEF,ZWICK, JOCHEN申请号：EP05771464.4申请日：20050714公开号：EP1787496A1公开日：20070523摘要：The invention relates to a method for control of an electrical light source bypulse width modulation of a supply voltage, whereby the supply voltage or a parameterdependent thereon is measured and the pulse width controlled as a function supply voltage or the parameter dependent thereon is thus measured as least twiceduring the pulse, preferably cyclically measured and the pulse width of the current or asubsequent pulse matched to the recorded value of the supply violate or the parameterdependent thereon. A total value is preferably generated from all the measured valuesfor said pulse and compared with a given value and the pulse width of subsequent pulsesmatched as a function of the difference between the given value and recorded totalvalue. The above can preferably be achieved, whereby a characteristic curve is provided,from which a 100% characteristic value for a pulse with permanently switched on supplyvoltage can be created from the supply voltage or the parameter dependant thereon,the supply voltage or parameter dependent thereon is determined for each pulse eitherdirectly or on the beginning thereof and the corresponding 100% characteristic valuedetermined from the characteristic curve, a corrected given value for the following pulseis determined from the given value (Asoll) and the difference for the previous pulse (A(n)-Asoll) and the pulse width for the current pulse determined from the quotient ofcorrected given value and the 100% characteristic value.申请人：CONTI TEMIC MICROELECTRONIC GMBH地址：Sieboldstrasse 19 90411 Nürnberg DE国籍：DE更多信息请下载全文后查看