专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

2. 发明授权

US06801621B1 Circuit and method for active termination of a transmission line interface 有权
标题翻译：传输线接口主动终端的电路和方法
公开(公告)号：US06801621B1
公开(公告)日：2004-10-05
申请号：US09892003
申请日：2001-06-26
申请人： Aner Tennen , Robert A. Brennan, Jr.
发明人： Aner Tennen , Robert A. Brennan, Jr.
IPC分类号： H04M100
CPC分类号： H04L25/0298
摘要： An improved line driver-hybrid and method for increasing the power efficiency, signal accuracy, and stability of a transmit signal on a transmission line are disclosed. The improved line driver-hybrid uses a negative feedback control loop, thereby enhancing operational stability and suppressing both amplifier imperfections and discrete component manufacturing variances. Furthermore, the improved line driver-hybrid provides a power efficient full duplex solution for line driver applications. The present invention can also be viewed as providing a method for actively terminating a transmission line. The method broadly includes: applying a transmit signal to a line driver; amplifying the transmit signal; applying the amplified transmit signal to a transmission line load to generate a load current; sensing the load current; applying the sensed load current in a negative feedback loop to generate a feedback signal responsive to the load current; applying the feedback signal to a hybrid network to emulate the transmission line load; and applying the line driver output voltage to the hybrid network to emulate the transmit signal and a remotely generated receive signal coupled to the transmission line.
摘要翻译：公开了一种用于提高传输线上的发射信号的功率效率，信号精度和稳定性的改进的线路驱动器混合和方法。改进的线路驱动器混合使用负反馈控制回路，从而增强操作稳定性并抑制放大器缺陷和分立元件制造差异。此外，改进的线路驱动器混合为线路驱动器应用提供了功率高效的全双工解决方案。本发明还可以被视为提供一种主动地终止传输线的方法。该方法广泛地包括：将发送信号应用于线路驱动器; 放大发射信号; 将放大的发射信号施加到传输线负载以产生负载电流; 检测负载电流; 将感测到的负载电流施加在负反馈回路中以响应于负载电流产生反馈信号; 将反馈信号应用于混合网络以仿真传输线路负载; 以及将所述线路驱动器输出电压施加到所述混合网络以仿真所述发射信号和耦合到所述传输线路的远程产生的接收信号。

IPRDB

热门服务

关于我们

友情链接

联系方式