复合管OTL功放实用电路.ppt

LOGO 复合管OTL功放实用电路 第六章第三节 复 合 管 复合管的定义 ： 将两只或两只以上的三极管的等效成一 只三极管叫复合管，又称达林顿管 复合管产生的前提 ： 输出功率较大的功放管要使用大功率管， 但大功率管的电流放大系数一般较小且不易 配对，所以功放管通常采用复合管 复 合 管 2、复合管等效三极管的类型与前一只三极 管的类型一致（位置上）。 复合管的复合原则 ： 1、复合管内每只三极管的各极电流方向 正确且互不抵触 复 合 管 复合管的复合方法 ： 1、同种管型：前一只三极管的e极与后一 只三极管的b极相连，c极直接相连 2、不同管型：前一只三极管的e极与后一 只三极管的c极相连，前一只三极管的c极 与后一只三极管的b极相连 复 合 管 复合管的电流放大倍数约为两只三极 管放大倍数的乘积 减小穿透电流的方法：在后一只三极管 的基极并联一只合适的电阻。（如下图 ） =12 Hot Tip vHow do I incorporate my logo to a slide that will apply to all the other slides? On the View menu, point to Master, and then click Slide Master or Notes Master. Change images to the one you like, then it will apply to all the other slides. Diagram ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc. Title Add your text ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc. Cycle Diagram Text Text Text Text Text Cycle name Add Your Text Diagram Text Text Text Add Your Title Text Text 1 Text 2 Text 3 Text 4 Text 5 Add Your Title Text Text 1 Text 2 Text 3 Text 4 Text 5 Text Text Diagram Concept Add Your Text Text Text Text Text Text Text Diagram Add Your Text Add Your Text Add Your Text Add Your Text Add Your Text Add Your Text Add Your Text Add Your Text Diagram Add Your Title Add Your Title Add Your Title ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc. ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc. ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc. ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc. ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc. ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc. Diagram TextTextText Diagram Add Your TitleAdd Your Title Text Text Text Text Cycle Diagram ConceptConcept BB E E C C DD AAAdd Your Text Add Your Text Add Your Text Add Your TextAdd Your Text Diagram 1 ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc. 2 ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc. 3 ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc. Diagram Your Text Your Text Your Text Your Text Your Text Your Text Your Text Your Text 2001200220032004 Progress Diagram Phase 1Phase 2Phase 3 Block Diagram TEXTTEXTTEXTTEXT TEXTTEXTTEXTTEXT Table TitleTitleTitleTitleTitle TitleOOOOO TitleOOOOO TitleOOOOO TitleOOOOO TitleOOOOO TitleOXOXO Text1 Text2 Text3 Text4 Text5 3-D Pie Chart Block Diagram Add Your TextAdd Y