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1.发明申请公开(公告)号：US20050060109A1
公开(公告)日：2005-03-17
申请号：US10664349
申请日：2003-09-17
申请人： James Caffrey , Colm Slattery , Albert O'Grady
发明人： James Caffrey , Colm Slattery , Albert O'Grady
CPC分类号： G01R27/02
摘要： A single chip integrated circuit measuring circuit (1) for determining a characteristic of the impedance of an external complex impedance circuit (2) for facilitating characterization of the impedance of the complex impedance circuit (2) comprises a signal generating circuit (7) for generating a variable frequency stimulus signal for applying to the complex impedance circuit (2). A first receiving circuit (10) receives a response signal from the complex impedance circuit (2) in response to the stimulus signal and conditions the response signal. A first analog-to-digital converter (68) converts the conditioned response signal to a first digital output signal, which is read from the first analog-to-digital converter (68) through a first digital output port (14). The response signal from the complex impedance circuit (2) is a current signal, and a current to voltage converter circuit (64) converts the response signal to a voltage signal. A first RMS to DC level converting circuit (70) converts the AC voltage of the response signal to a DC voltage level, and a fourth multiplexer (67) selectively applies the voltage response signal or the DC voltage level signal to the first analog-to-digital converter (68), depending on whether it is desired that the first digital output signal should be indicative of the phase shift or amplitude change in the response signal relative to the stimulus signal. A second receiving circuit (20) receives the stimulus signal, and similarly converts the stimulus signal to a second digital output signal for facilitating comparison of the response signal with the stimulus signal.
摘要翻译： 一种单芯片集成电路测量电路（1），用于确定外部复阻抗电路（2）的阻抗特性，以便于表征复阻抗电路（2）的阻抗，其特征在于包括一个信号发生电路（7） 用于施加到复阻抗电路（2）的可变频率刺激信号。 第一接收电路（10）响应于激励信号接收来自复阻抗电路（2）的响应信号并且对响应信号进行调节。 第一模数转换器（68）将经调节的响应信号转换成通过第一数字输出端口（14）从第一模数转换器（68）读取的第一数字输出信号。 来自复阻抗电路（2）的响应信号是电流信号，并且电流 - 电压转换器电路（64）将响应信号转换为电压信号。 第一RMS至DC电平转换电路（70）将响应信号的AC电压转换为DC电压电平，第四多路复用器（67）选择性地将电压响应信号或DC电压电平信号施加到第一模数转换器 数字转换器（68），这取决于第一数字输出信号是否应当指示响应信号相对于激励信号的相移或幅度变化。 第二接收电路（20）接收刺激信号，并且类似地将激励信号转换为第二数字输出信号，以便于响应信号与刺激信号的比较。
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2.发明申请公开(公告)号：US20060276982A1
公开(公告)日：2006-12-07
申请号：US11492606
申请日：2006-07-24
申请人： James Caffrey , Colm Slattery , Albert O'Grady
发明人： James Caffrey , Colm Slattery , Albert O'Grady
CPC分类号： G01R27/02
摘要： A single chip integrated circuit measuring circuit (1) for determining a characteristic of the impedance of an external complex impedance circuit (2) for facilitating characterization of the impedance of the complex impedance circuit (2) comprises a signal generating circuit (7) for generating a variable frequency stimulus signal for applying to the complex impedance circuit (2). A first receiving circuit (10) receives a response signal from the complex impedance circuit (2) in response to the stimulus signal and conditions the response signal. A first analog-to-digital converter (68) converts the conditioned response signal to a first digital output signal, which is read from the first analog-to-digital converter (68) through a first digital output port (14). The response signal from the complex impedance circuit (2) is a current signal, and a current to voltage converter circuit (64) converts the response signal to a voltage signal. A first RMS to DC level converting circuit (70) converts the AC voltage of the response signal to a DC voltage level, and a fourth multiplexer (67) selectively applies the voltage response signal or the DC voltage level signal to the first analog-to-digital converter (68), depending on whether it is desired that the first digital output signal should be indicative of the phase shift or amplitude change in the response signal relative to the stimulus signal. A second receiving circuit (20) receives the stimulus signal, and similarly converts the stimulus signal to a second digital output signal for facilitating comparison of the response signal with the stimulus signal.
摘要翻译： 一种单芯片集成电路测量电路（1），用于确定外部复阻抗电路（2）的阻抗特性，以便于表征复阻抗电路（2）的阻抗，其特征在于包括一个信号发生电路（7） 用于施加到复阻抗电路（2）的可变频率刺激信号。 第一接收电路（10）响应于激励信号接收来自复阻抗电路（2）的响应信号并且对响应信号进行调节。 第一模数转换器（68）将经调节的响应信号转换成通过第一数字输出端口（14）从第一模数转换器（68）读取的第一数字输出信号。 来自复阻抗电路（2）的响应信号是电流信号，并且电流 - 电压转换器电路（64）将响应信号转换为电压信号。 第一RMS至DC电平转换电路（70）将响应信号的AC电压转换为DC电压电平，第四多路复用器（67）选择性地将电压响应信号或DC电压电平信号施加到第一模数转换器 数字转换器（68），这取决于第一数字输出信号是否应当指示响应信号相对于激励信号的相移或幅度变化。 第二接收电路（20）接收刺激信号，并且类似地将激励信号转换为第二数字输出信号，以便于响应信号与刺激信号的比较。
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公开(公告)号：US20170264295A1
公开(公告)日：2017-09-14
申请号：US15456160
申请日：2017-03-10
申请人： Colm Slattery , Patrick C. Kirby , Albert O'Grady , Denis O'Connor , Michael Collins , Valerie Hamilton , Aidan J. Cahalane , Michal Brychta
发明人： Colm Slattery , Patrick C. Kirby , Albert O'Grady , Denis O'Connor , Michael Collins , Valerie Hamilton , Aidan J. Cahalane , Michal Brychta
IPC分类号： H03K19/0175 , H01L27/02 , H03K19/177
CPC分类号： H03K19/017581 , G01R31/31712 , H01L27/0255 , H03K19/17764
摘要： Systems for monitoring or control can include reconfigurable input and output channels. Such reconfigurable channels can include as few as a single terminal and a ground pin, or such channels can include three or four terminal configuration such as for use in four-terminal resistance measurements. Channel reconfiguration can be accomplished such as using software-enabled or firmware-enabled control of channel hardware. Such channel hardware can include analog-to-digital and digital-to-analog conversion capability, including use of a digital-to-analog converter to provide field power or biasing. In an example, the interface circuit can provide a selectable impedance.
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公开(公告)号：US20160357203A1
公开(公告)日：2016-12-08
申请号：US15174553
申请日：2016-06-06
IPC分类号： G05F1/46
摘要： Embodiments of the present invention may provide an integrated circuit with reduced power loss. The integrated circuit may comprise a processing system and a feedback circuit. The processing system may generate a load signal from a variable power supply, which is external to the integrated circuit. The feedback circuit may compare the load signal and a voltage input from the variable power supply, and based on the comparison, generate a feedback signal for adjusting the variable power supply, thereby reducing power loss.
摘要翻译： 本发明的实施例可以提供具有降低的功率损耗的集成电路。 集成电路可以包括处理系统和反馈电路。 处理系统可以从集成电路外部的可变电源产生负载信号。 反馈电路可以比较负载信号和来自可变电源的电压输入，并且基于比较，产生用于调整可变电源的反馈信号，从而减少功率损耗。
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