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1. 发明申请

US20080001667A1 Circuitry For Adaptively Generating And Using A Reference Voltage 有权
标题翻译：用于自适应生成和使用参考电压的电路
公开(公告)号：US20080001667A1
公开(公告)日：2008-01-03
申请号：US11383943
申请日：2006-05-17
申请人： Ta-wei Yang , Larry Farnsley , Jyn-Bang Shyu , Thomas Ching , Robert Olah
发明人： Ta-wei Yang , Larry Farnsley , Jyn-Bang Shyu , Thomas Ching , Robert Olah
IPC分类号： H03F3/45 , H04Q5/22 , H03F3/191 , G08B13/14
CPC分类号： G06K19/0723
摘要： a circuit for an RFID device in one embodiment includes an operational amplifier having a first input, a second input, and an output where the first input receives an incoming signal, arid the second input is coupled to the output via a feedback loop. An operational amplifier for an RFID device according to another embodiment compares an output of the operational amplifier to an incoming baseband signal, A circuit according to another embodiment includes an operational amplifier having a first input, a second input, and an output, wherein the first input receives an incoming signal, and wherein the second input is coupled to the output via a feedback loop. A comparator having one input is coupled to the output of the operational amplifier, another input receiving the incoming signal, and an output for outputting an outgoing signal. Methods for adjusting a filtering characteristic of an operational amplifier are also disclosed.
摘要翻译：在一个实施例中的用于RFID设备的电路包括具有第一输入，第二输入和输出的运算放大器，其中第一输入接收输入信号，并且第二输入经由反馈回路耦合到输出。根据另一实施例的用于RFID设备的运算放大器将运算放大器的输出与输入的基带信号进行比较。根据另一实施例的电路包括具有第一输入，第二输入和输出的运算放大器，其中第一输入接收输入信号，并且其中第二输入经由反馈回路耦合到输出。具有一个输入的比较器耦合到运算放大器的输出端，接收输入信号的另一输入端和用于输出输出信号的输出端。还公开了用于调整运算放大器的滤波特性的方法。

2. 发明授权

US07385448B2 Circuitry for adaptively generating and using a reference voltage 有权
标题翻译：用于自适应地产生和使用参考电压的电路
公开(公告)号：US07385448B2
公开(公告)日：2008-06-10
申请号：US11383943
申请日：2006-05-17
申请人： Ta-wei Yang , Larry Farnsley , Jyn-Bang Shyu , Thomas Ching , Robert Olah
发明人： Ta-wei Yang , Larry Farnsley , Jyn-Bang Shyu , Thomas Ching , Robert Olah
IPC分类号： H03F3/04
CPC分类号： G06K19/0723
摘要： a circuit for an RFID device in one embodiment includes an operational amplifier having a first input, a second input, and an output where the first input receives an incoming signal, arid the second input is coupled to the output via a feedback loop. An operational amplifier for an RFID device according to another embodiment compares an output of the operational amplifier to an incoming baseband signal, A circuit according to another embodiment includes an operational amplifier having a first input, a second input, and an output, wherein the first input receives an incoming signal, and wherein the second input is coupled to the output via a feedback loop. A comparator having one input is coupled to the output of the operational amplifier, another input receiving the incoming signal, and an output for outputting an outgoing signal. Methods for adjusting a filtering characteristic of an operational amplifier are also disclosed.
摘要翻译：在一个实施例中的用于RFID设备的电路包括具有第一输入，第二输入和输出的运算放大器，其中第一输入接收输入信号，并且第二输入经由反馈回路耦合到输出。根据另一实施例的用于RFID设备的运算放大器将运算放大器的输出与输入的基带信号进行比较。根据另一实施例的电路包括具有第一输入，第二输入和输出的运算放大器，其中第一输入接收输入信号，并且其中第二输入经由反馈回路耦合到输出。具有一个输入的比较器耦合到运算放大器的输出端，接收输入信号的另一输入端和用于输出输出信号的输出端。还公开了用于调整运算放大器的滤波特性的方法。

3. 发明授权

US07683717B2 Fully differential amplifier with continuous-time offset reduction 有权
标题翻译：具有连续时间偏移量的全差分放大器
公开(公告)号：US07683717B2
公开(公告)日：2010-03-23
申请号：US11303897
申请日：2005-12-15
申请人： Ta-wei Yang , Jyn-Bang Shyu , Robert Olah
发明人： Ta-wei Yang , Jyn-Bang Shyu , Robert Olah
IPC分类号： H03F3/45
CPC分类号： H03F3/45183 , H03F3/45744 , H03F2203/45101 , H03F2203/45134 , H03F2203/45642 , H03F2203/45652 , H03F2203/45681
摘要： Fully differential amplifier circuits are described herein that set the common mode voltage as well as reduce the output offset voltage (offset cancellation). A circuit according to one embodiment includes a first section for generating first and second output signals on first and second outputs from first and second input signals, a first negative feedback loop coupled to the first section, and a second negative feedback loop coupled to the first section. A second section controls the first negative feedback loop for adjusting the first output signal towards a common mode voltage level, and for reducing an offset voltage of the first output signal in different loop bandwidths. A third section controls the second negative feedback loop for adjusting the second output signal towards the common mode voltage level, and for reducing an offset voltage of the second output signal in different loop bandwidths.
摘要翻译：这里描述的全差分放大器电路设置共模电压以及降低输出偏移电压（偏移消除）。根据一个实施例的电路包括用于在第一和第二输入信号的第一和第二输出上产生第一和第二输出信号的第一部分，耦合到第一部分的第一负反馈环路和耦合到第一部分的第二负反馈回路部分。第二部分控制第一负反馈回路，用于将第一输出信号调整到共模电压电平，并用于减小不同环路带宽中的第一输出信号的偏移电压。第三部分控制用于将第二输出信号调整到共模电压电平的第二负反馈回路，并且用于在不同的环路带宽中减小第二输出信号的偏移电压。

4. 发明申请

US20070139116A1 Fully differential amplifier with continuous-time offset reduction 有权
标题翻译：具有连续时间偏移量的全差分放大器
公开(公告)号：US20070139116A1
公开(公告)日：2007-06-21
申请号：US11303897
申请日：2005-12-15
申请人： Ta-wei Yang , Jyn-Bang Shyu , Robert Olah
发明人： Ta-wei Yang , Jyn-Bang Shyu , Robert Olah
IPC分类号： H03F3/45
CPC分类号： H03F3/45183 , H03F3/45744 , H03F2203/45101 , H03F2203/45134 , H03F2203/45642 , H03F2203/45652 , H03F2203/45681
摘要： Fully differential amplifier circuits are described herein that set the common mode voltage as well as reduce the output offset voltage (offset cancellation). A circuit according to one embodiment includes a first section for generating first and second output signals on first and second outputs from first and second input signals, a first negative feedback loop coupled to the first section, and a second negative feedback loop coupled to the first section. A second section controls the first negative feedback loop for adjusting the first output signal towards a common mode voltage level, and for reducing an offset voltage of the first output signal in different loop bandwidths. A third section controls the second negative feedback loop for adjusting the second output signal towards the common mode voltage level, and for reducing an offset voltage of the second output signal in different loop bandwidths.
摘要翻译：这里描述的全差分放大器电路设置共模电压以及降低输出偏移电压（偏移消除）。根据一个实施例的电路包括用于在第一和第二输入信号的第一和第二输出上产生第一和第二输出信号的第一部分，耦合到第一部分的第一负反馈环路和耦合到第一部分的第二负反馈回路部分。第二部分控制第一负反馈回路，用于将第一输出信号调整到共模电压电平，并用于减小不同环路带宽中的第一输出信号的偏移电压。第三部分控制用于将第二输出信号调整到共模电压电平的第二负反馈回路，并且用于在不同的环路带宽中减小第二输出信号的偏移电压。

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