公开(公告)号：US20070001735A1

公开(公告)日：2007-01-04

申请号：US11477576

申请日：2006-06-29

申请人： Benno Muhlbacher ,  Achim Gratz ,  Evelyne Krickl ,  Thomas Potscher ,  Mayk Roehrich ,  David San Segundo Bello ,  Andreas Weisbauer

发明人： Benno Muhlbacher ,  Achim Gratz ,  Evelyne Krickl ,  Thomas Potscher ,  Mayk Roehrich ,  David San Segundo Bello ,  Andreas Weisbauer

IPC分类号： H03K3/00

CPC分类号： H03F3/217

摘要： A class D power output stage for switching a supply voltage comprises a limiting transistor with a controllable path and a control terminal, a complementary limiting transistor with a controllable path and a control terminal, a switching transistor with a controllable path and a control terminal, and a complementary switching transistor with a controllable path and a control terminal. A switched output signal between the controllable paths of the limiting and complementary limiting transistors can be taped off, the controllable paths of the limiting and the complementary limiting transistors are connected together and are connected to a first and a second supply terminal via the controllable paths of the switching and complementary switching transistors, and the switching and the complementary switching transistors have a lower electrical strength than the limiting and complementary limiting transistors. The output stage further comprises a level matching device for generating control signals in response to an input switching signal. The matching device is connected to the supply voltage and the control signals are fed to the control terminals.

摘要翻译： 用于切换电源电压的D类功率输出级包括具有可控路径的限制晶体管和控制端子，具有可控路径的互补限制晶体管和控制端子，具有可控路径的开关晶体管和控制端子，以及 具有可控路径和控制端的互补开关晶体管。 限流和互补限制晶体管的可控路径之间的切换输出信号可以被分离，限制和互补限制晶体管的可控路径连接在一起，并经由可控路径的可控路径连接到第一和第二供电端子 开关和互补开关晶体管，以及开关和互补开关晶体管具有比限制和互补限制晶体管更低的电气强度。 输出级还包括用于响应于输入切换信号产生控制信号的电平匹配装置。 匹配装置连接到电源电压，控制信号馈送到控制端。