公开(公告)号：US08222925B2

公开(公告)日：2012-07-17

申请号：US12569115

申请日：2009-09-29

申请人： Hsin-Hsien Li ,  Chin-Chun Lin ,  Tsung-Hsien Hsieh ,  Zi-Long Huang

发明人： Hsin-Hsien Li ,  Chin-Chun Lin ,  Tsung-Hsien Hsieh ,  Zi-Long Huang

IPC分类号： H03K19/094 ,  H03K19/0175

CPC分类号： H04L12/40032 ,  H04L25/0266 ,  H04L25/0272

摘要： A multimode line driver circuit is provided. The multimode line driver circuit has a first driver circuit for receiving a first differential input signal and transmitting a first differential output signal, and a second driver circuit for receiving a second driver circuit for receiving a second differential input signal and transmitting a second differential output signal. The multimode line driver circuit also has a first switch coupling the first driver circuit to a first power supply and a second switch coupling the second driver circuit to a second power supply. The multimode line driver circuit also has a transformer coupled to the output interface for transforming the first differential output and the second differential output and a mode controller configured to close the first switch in the first mode and to close the second switch in the second mode.

摘要翻译： 提供多模线路驱动电路。 多模式线路驱动器电路具有用于接收第一差分输入信号并发送第一差分输出信号的第一驱动器电路和用于接收第二驱动器电路的第二驱动器电路，用于接收第二差分输入信号并发送第二差分输出信号 。 多模式线路驱动器电路还具有将第一驱动器电路耦合到第一电源的第一开关和将第二驱动器电路耦合到第二电源的第二开关。 多模线驱动电路还具有耦合到输出接口的变压器，用于变换第一差分输出和第二差分输出;模式控制器被配置为在第一模式中闭合第一开关并且以第二模式闭合第二开关。

公开(公告)号：US20110075741A1

公开(公告)日：2011-03-31

申请号：US12569115

申请日：2009-09-29

申请人： Hsin-Hsien LI ,  Chin-Chun Lin ,  Tsung-Hsien Hsieh ,  Zi-Long Huang

发明人： Hsin-Hsien LI ,  Chin-Chun Lin ,  Tsung-Hsien Hsieh ,  Zi-Long Huang

IPC分类号： H04B3/00

CPC分类号： H04L12/40032 ,  H04L25/0266 ,  H04L25/0272

摘要： A multimode line driver circuit is provided. The multimode line driver circuit has a first driver circuit for receiving a first differential input signal and transmitting a first differential output signal, and a second driver circuit for receiving a second driver circuit for receiving a second differential input signal and transmitting a second differential output signal. The multimode line driver circuit also has a first switch coupling the first driver circuit to a first power supply and a second switch coupling the second driver circuit to a second power supply. The multimode line driver circuit also has a transformer coupled to the output interface for transforming the first differential output and the second differential output and a mode controller configured to close the first switch in the first mode and to close the second switch in the second mode.

摘要翻译： 提供多模线路驱动电路。 多模式线路驱动器电路具有用于接收第一差分输入信号并发送第一差分输出信号的第一驱动器电路和用于接收第二驱动器电路的第二驱动器电路，用于接收第二差分输入信号并发送第二差分输出信号 。 多模式线路驱动器电路还具有将第一驱动器电路耦合到第一电源的第一开关和将第二驱动器电路耦合到第二电源的第二开关。 多模线驱动电路还具有耦合到输出接口的变压器，用于变换第一差分输出和第二差分输出;以及模式控制器，被配置为在第一模式中闭合第一开关并且以第二模式闭合第二开关。

公开(公告)号：US20090212829A1

公开(公告)日：2009-08-27

申请号：US12035031

申请日：2008-02-21

申请人： MENG-PING KAN ,  Chin-Chun Lin ,  Hsin-Hsien Li

发明人： MENG-PING KAN ,  Chin-Chun Lin ,  Hsin-Hsien Li

IPC分类号： H03K3/00

CPC分类号： H04L25/028

摘要： A multimode line driver circuit is provided having improved performance. The multimode line driver comprises at least first and second driver circuits that, when “active,” respectively transmit data using first and second modes. The multimode line driver further comprises a circuit arrangement including a voltage regulator and an associated set of switches. In operation, at least some of the switches are coupled to the second driver circuit and are turned on when the first driver circuit is active. The voltage regulator supplies a direct current to at least some of the turned-on switches in order to decrease a common mode voltage at the second driver circuit while the first driver circuit transmits data using the first mode. As such, components of the second driver circuit can be powered off while the first driver circuit is active, thus reducing power consumption in the first mode.

摘要翻译： 提供了具有改进的性能的多模式线路驱动器电路。 多模行驱动器至少包括第一和第二驱动器电路，当“活动”分别使用第一和第二模式传输数据时。 多模式线路驱动器还包括电路装置，其包括电压调节器和相关的一组开关。 在操作中，至少一些开关耦合到第二驱动器电路，并且当第一驱动器电路有效时被接通。 电压调节器向至少一些导通开关提供直流电流，以便在第一驱动电路使用第一模式传输数据时降低第二驱动电路处的共模电压。 因此，第二驱动电路的部件可以在第一驱动电路有效时被断电，从而降低第一模式的功耗。

公开(公告)号：US08022758B2

公开(公告)日：2011-09-20

申请号：US12683386

申请日：2010-01-06

申请人： Hsin-Hsien Li ,  Chin-Chun Lin ,  Tsung-Hsien Hsieh ,  Zi-Long Huang

发明人： Hsin-Hsien Li ,  Chin-Chun Lin ,  Tsung-Hsien Hsieh ,  Zi-Long Huang

IPC分类号： H03F1/36

CPC分类号： H03F1/56 ,  H03F3/45475 ,  H03F2200/387 ,  H03F2203/45048 ,  H03F2203/45138

摘要： A circuit comprises an amplifier circuit and a trimming circuit. The amplifier circuit includes an operational amplifier. The operational amplifier has a first input configured to receive input signals, and the operational amplifier also has a second input and an amplifier output. One of the first input or the second input is a negative input. The trimming circuit is coupled to the amplifier output. The trimming circuit includes a termination resistor coupled in parallel with at least one trimming resistor. The termination resistor is coupled to a first switch in series, and the trimming resistor is coupled to a second switch in series. The amplifier output is connected back to the negative input through the first switch.

摘要翻译： 电路包括放大器电路和微调电路。 放大器电路包括运算放大器。 运算放大器具有被配置为接收输入信号的第一输入，并且运算放大器还具有第二输入和放大器输出。 第一个输入或第二个输入之一是负输入。 微调电路耦合到放大器输出端。 修整电路包括与至少一个微调电阻器并联耦合的终端电阻器。 终端电阻器串联耦合到第一开关，并且微调电阻器串联耦合到第二开关。 放大器输出端通过第一个开关连接到负输入端。

公开(公告)号：US20110163807A1

公开(公告)日：2011-07-07

申请号：US12683386

申请日：2010-01-06

申请人： Hsin-Hsien LI ,  Chin-Chun LIN ,  Tsung-Hsien HSIEH ,  Zi-Long HUANG

发明人： Hsin-Hsien LI ,  Chin-Chun LIN ,  Tsung-Hsien HSIEH ,  Zi-Long HUANG

IPC分类号： H03F3/45

CPC分类号： H03F1/56 ,  H03F3/45475 ,  H03F2200/387 ,  H03F2203/45048 ,  H03F2203/45138

摘要： A circuit comprises an amplifier circuit and a trimming circuit. The amplifier circuit includes an operational amplifier. The operational amplifier has a first input configured to receive input signals, and the operational amplifier also has a second input and an amplifier output. One of the first input or the second input is a negative input. The trimming circuit is coupled to the amplifier output. The trimming circuit includes a termination resistor coupled in parallel with at least one trimming resistor. The termination resistor is coupled to a first switch in series, and the trimming resistor is coupled to a second switch in series. The amplifier output is connected back to the negative input through the first switch.

摘要翻译： 电路包括放大器电路和微调电路。 放大器电路包括运算放大器。 运算放大器具有被配置为接收输入信号的第一输入，并且运算放大器还具有第二输入和放大器输出。 第一个输入或第二个输入之一是负输入。 微调电路耦合到放大器输出端。 修整电路包括与至少一个微调电阻器并联耦合的终端电阻器。 终端电阻器串联耦合到第一开关，并且微调电阻器串联耦合到第二开关。 放大器输出端通过第一个开关连接到负输入端。

公开(公告)号：US07990176B2

公开(公告)日：2011-08-02

申请号：US12565339

申请日：2009-09-23

申请人： Hsin-Hsien Li ,  Chin-Chun Lin ,  Tsung-Hsien Hsieh ,  Zi-Long Huang

发明人： Hsin-Hsien Li ,  Chin-Chun Lin ,  Tsung-Hsien Hsieh ,  Zi-Long Huang

IPC分类号： H03K17/16

CPC分类号： H04L25/028 ,  H04L25/0282

摘要： A line driver for a communications system requiring multiple power sources for different modes of operation comprises a current source and a voltage source coupled in parallel with the current source. The current source has a first terminal and a second terminal. The line driver further comprises a first source resistor coupled to the first terminal of the current source and a second source resistor coupled to the second terminal of the current source. The current source provides a driving current and the voltage source provides a driving voltage at the same time during operations of the communications system.

摘要翻译： 用于需要用于不同操作模式的多个电源的通信系统的线路驱动器包括与电流源并联耦合的电流源和电压源。 电流源具有第一端子和第二端子。 线路驱动器还包括耦合到电流源的第一端子的第一源电阻器和耦合到电流源的第二端子的第二源极电阻器。 电流源提供驱动电流，并且电压源在通信系统的操作期间同时提供驱动电压。

公开(公告)号：US20110068831A1

公开(公告)日：2011-03-24

申请号：US12565339

申请日：2009-09-23

申请人： Hsin-Hsien LI ,  Chin-Chun LIN ,  Tsung-Hsien HSIEH ,  Zi-Long HUANG

发明人： Hsin-Hsien LI ,  Chin-Chun LIN ,  Tsung-Hsien HSIEH ,  Zi-Long HUANG

IPC分类号： H03K3/00

CPC分类号： H04L25/028 ,  H04L25/0282

摘要： A line driver for a communications system requiring multiple power sources for different modes of operation comprises a current source and a voltage source coupled in parallel with the current source. The current source has a first terminal and a second terminal. The line driver further comprises a first source resistor coupled to the first terminal of the current source and a second source resistor coupled to the second terminal of the current source. The current source provides a driving current and the voltage source provides a driving voltage at the same time during operations of the communications system.

摘要翻译： 用于需要用于不同操作模式的多个电源的通信系统的线路驱动器包括与电流源并联耦合的电流源和电压源。 电流源具有第一端子和第二端子。 线路驱动器还包括耦合到电流源的第一端子的第一源电阻器和耦合到电流源的第二端子的第二源极电阻器。 电流源提供驱动电流，并且电压源在通信系统的操作期间同时提供驱动电压。

公开(公告)号：US07863935B2

公开(公告)日：2011-01-04

申请号：US12035031

申请日：2008-02-21

申请人： Meng-Ping Kan ,  Chin-Chun Lin ,  Hsin-Hsien Li

发明人： Meng-Ping Kan ,  Chin-Chun Lin ,  Hsin-Hsien Li

IPC分类号： H03K19/094 ,  H03K19/0175

CPC分类号： H04L25/028

摘要： A multimode line driver circuit is provided having improved performance. The multimode line driver comprises at least first and second driver circuits that, when “active,” respectively transmit data using first and second modes. The multimode line driver further comprises a circuit arrangement including a voltage regulator and an associated set of switches. In operation, at least some of the switches are coupled to the second driver circuit and are turned on when the first driver circuit is active. The voltage regulator supplies a direct current to at least some of the turned-on switches in order to decrease a common mode voltage at the second driver circuit while the first driver circuit transmits data using the first mode. As such, components of the second driver circuit can be powered off while the first driver circuit is active, thus reducing power consumption in the first mode.

摘要翻译： 提供了具有改进的性能的多模式线路驱动器电路。 多模行驱动器至少包括第一和第二驱动器电路，当“活动”分别使用第一和第二模式传输数据时。 多模式线路驱动器还包括电路装置，其包括电压调节器和相关的一组开关。 在操作中，至少一些开关耦合到第二驱动器电路，并且当第一驱动器电路有效时被接通。 电压调节器向至少一些导通开关提供直流电流，以便在第一驱动电路使用第一模式传输数据时降低第二驱动电路处的共模电压。 因此，第二驱动电路的部件可以在第一驱动电路有效时被断电，从而降低第一模式的功耗。