A pulse-width modulated, linear audio-power amplif
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
专利名称：A pulse-width modulated, linear audio-
power amplifier
发明人：Andersson, Kenneth,Bävholm, Dan
申请号：EP91850266.7
申请日：19911025
公开号：EP0483094A3
公开日：
19921209
专利内容由知识产权出版社提供
专利附图：
摘要：In a push-pull-connected final stage (111) of an audio amplifier, its two supply poles (117, 118) are supplied by low-impedance current sources, the voltages of which comprise, in principle, of a constant positive voltage and a constant negative voltage
superimposed by the input signal to the final stage. Each of these voltages is obtained by a respective pulse-width modulated amplifier (103, 104) coacting with lowpass filter circuits (109, 110) and recovery diodes (107, 108). Distortion factors which are thirty times better than the distortion factors obtained with conventional class D-amplifiers with pulse-width modulation can be achieved.
申请人：AB LAB. GRUPPEN ANDERSSON & BÄVHOLM
地址：Lilla Verkstadsgatan 7 S-434 42 Kungsbacka SE
国籍：SE
代理机构：Grennberg, Erik Bertil
更多信息请下载全文后查看