公开(公告)号：US07102556B2

公开(公告)日：2006-09-05

申请号：US11084713

申请日：2005-03-18

申请人： Bert White

发明人： Bert White

IPC分类号： H03M1/00

CPC分类号： G01R21/133

摘要： A method and apparatus for obtaining power computation parameters is presented. Accurate computation of power requires multiplying voltage and current at the same instant of time and integrating the results over time. The present invention provides a method of using a single Analog to Digital Converter to convert both voltage and current for all the phases of any electrical system and then digitally compensating for the phase error caused by the non-simultaneous sampling of the current and voltage signals. The compensating filter could be implemented as a simple interpolator, an all-pass filter, or a combination of both. A single multiplexer is used to select which signal is processed by the Analog to Digital Converter. By scheduling and converting the voltage and analog signals one at a time, potential for crosstalk is significantly reduced, power requirement is reduced, and die size requirement is reduced.

摘要翻译： 提出了一种获取功率计算参数的方法和装置。 功率的精确计算需要在相同的时刻乘以电压和电流，并且随着时间的推移积分结果。 本发明提供了使用单个模数转换器来转换任何电气系统的所有相位的电压和电流的方法，然后对由电流和电压信号的非同时采样引起的相位误差进行数字补偿。 补偿滤波器可以被实现为简单的内插器，全通滤波器或两者的组合。 单个多路复用器用于选择哪个信号由模数转换器处理。 通过一次一个地调整和转换电压和模拟信号，显着降低了串扰的可能性，降低了功率需求，降低了芯片尺寸要求。

公开(公告)号：US5214641A

公开(公告)日：1993-05-25

申请号：US758347

申请日：1991-09-09

申请人： Ching-Siang Chen ,  Bert White

发明人： Ching-Siang Chen ,  Bert White

IPC分类号： H04J1/05 ,  H04L5/06

CPC分类号： H04J1/05 ,  H04L5/06

摘要： A secondary channel FSK modem for use with primary channel QAM modems is described. The present invention is a fully integrated 75 bps narrowband secondary channel FSK modem which may be utilized with a primary channel QAM modem at data rates up to 19.2 kbps. The present invention applies switched capacitor circuits to implement band split filters and FSK transmitters. A micro-digital signal processor is implemented to realize the FSK receiver to achieve higher performance, long-term stability and versatility. The present invention provides 40 Hz separation of two carrier frequencies to improve bandwidth efficiency. In operation, an FSK modulator is combined with a highpass filter and delay equalizer to separate a section of the main channel bandwidth for use with the secondary channel. The FSK signal and QAM signal are then summed and provided to a smoothing filter for transmission line output. For receiving, an anti-alias filter recovers the received line signal and couples the signal to a highpass filter and bandpass filter. The highpass filter signal is delay equalized and coupled to a smoothing filter to obtain the main channel output. The bandpass filter is coupled through an A/D converter and to a micro-digital signal processor to recover the FSK data.

摘要翻译： 描述了与主信道QAM调制解调器一起使用的辅助信道FSK调制解调器。 本发明是一种完全集成的75bps的窄带二级信道FSK调制解调器，其可以以高达19.2kbps的数据速率与主信道QAM调制解调器一起使用。 本发明应用开关电容电路来实现频带分离滤波器和FSK发射机。 实现微数字信号处理器实现FSK接收机，实现更高的性能，长期的稳定性和多功能性。 本发明提供了两个载波频率的40Hz间隔以提高带宽效率。 在操作中，FSK调制器与高通滤波器和延迟均衡器组合以分离主信道带宽的一部分以用于辅助信道。 然后将FSK信号和QAM信号相加并提供给用于传输线输出的平滑滤波器。 为了接收，抗混叠滤波器恢复接收到的线路信号，并将信号耦合到高通滤波器和带通滤波器。 高通滤波器信号被延迟均衡并耦合到平滑滤波器以获得主通道输出。 带通滤波器通过A / D转换器耦合到微数字信号处理器以恢复FSK数据。

公开(公告)号：US08144446B2

公开(公告)日：2012-03-27

申请号：US12178547

申请日：2008-07-23

申请人： Kourosh Boutorabi ,  Bert White

发明人： Kourosh Boutorabi ,  Bert White

IPC分类号： H02H7/00

CPC分类号： G01R19/2513 ,  G01R15/146 ,  G01R21/06

摘要： The present disclosure includes a power measurement, circuit breaker or integrated protection system including isolated analog-to-digital modulators for measuring current using current sensors, such as, for example, current shunts, in a single or multiphase power system. In one embodiment, the modulators are divided into a line-side device with an analog-to-digital modulator and a host-side device including a decimation filter and a processor. In one embodiment, an isolation barrier, such as, for example, a pulse transformer, divides the line-side device from the host-side device.

摘要翻译： 本公开包括功率测量，断路器或集成保护系统，其包括用于在单相或多相电力系统中使用电流传感器（例如，电流分流）测量电流的隔离的模拟 - 数字调制器。 在一个实施例中，调制器被划分为具有模拟 - 数字调制器的线路侧设备和包括抽取滤波器和处理器的主机侧设备。 在一个实施例中，隔离屏障，例如脉冲变压器，将线路侧设备与主机侧设备分开。

公开(公告)号：US5142238A

公开(公告)日：1992-08-25

申请号：US732474

申请日：1991-07-18

申请人： Bert White

发明人： Bert White

IPC分类号： H03F3/00 ,  H03F3/45 ,  H03H19/00

CPC分类号： H03F3/45479 ,  H03F3/005

摘要： The switched-capacitor differential amplifier circuit of the present invention employs a more efficient switched-capacitor network to provide a common mode range which is not limited by the amplifier power supply, and to achieve a high common mode rejection ratio at high frequencies with decreased sensitivity to component tolerances. The circuit employs a two-phase system, during the first phase of which, the circuit is auto-zeroed, the differential inputs are sampled and the capacitors are pre-charged. During the second phase, the differential inputs are disconnected and the bottom plates of the input capacitors are coupled together. The charge redistribution within the circuit forms an output potential that is proportional to the difference between the input signals, and that is offset by a user specified voltage. The present invention substantially eliminates the effects of parasitic capacitance.

摘要翻译： 本发明的开关电容差分放大器电路采用更高效的开关电容器网络来提供不受放大器电源限制的共模范围，并且在灵敏度降低的高频下实现高共模抑制比 到元件公差。 该电路采用两相系统，在其第一阶段，电路自动归零，对差分输入进行采样，并对电容器进行预充电。 在第二阶段期间，差分输入断开，输入电容器的底板耦合在一起。 电路内的电荷再分配形成与输入信号之间的差成比例的输出电位，并由用户指定的电压抵消。 本发明基本上消除了寄生电容的影响。

公开(公告)号：US5828232A

公开(公告)日：1998-10-27

申请号：US966594

申请日：1997-11-10

申请人： Bert White

发明人： Bert White

IPC分类号： H03K17/16

CPC分类号： H03K17/164

摘要： The present invention discloses a circuit to reduce current and voltage spikes when switching inductive loads. The circuit of the present invention achieves this reduction in voltage and current spikes without requiring the prior art's large sizes for the transistors driving the inductive load. The invention results in reduced cost and power consumption. Moreover, the invention's circuit maintains a fast switching time for the transistors driving the inductive load. The invention's circuit comprises a current steering mechanism which directs current to one of the two drivers driving an inductive load. According to the invention, current is directed to the driver coupled to the supply voltage, the driver coupled to ground, or both in different amounts. The current is directed to the drivers such that the effect of flyback voltage caused by switching the inductive load is reduced. When current flows from the inductive load into the driver circuitry, a temporary discharge path is provided such that the body diode between the inductive load and the supply voltage is not forward biased. Conversely, when current flows from the driver circuitry into the inductive load, a temporary discharge path is provided such that the body diode between the inductive load and ground in not forward biased. The prevention of the forward biasing of the body diodes results in a reduction of the stored charge in the body diodes. This in turn results in a reduction of current and voltage spikes in the supply voltage and ground.

摘要翻译： 本发明公开了一种在切换感性负载时减小电流和电压尖峰的电路。 本发明的电路实现了电压和电流尖峰的这种降低，而不需要用于驱动感性负载的晶体管的现有技术的大尺寸。 本发明导致成本和功耗的降低。 此外，本发明的电路为驱动感性负载的晶体管保持快速的开关时间。 本发明的电路包括电流转向机构，其将电流引导到驱动感性负载的两个驱动器之一。 根据本发明，电流被引导到耦合到电源电压的驱动器，耦合到地的驱动器或者以不同的量耦合两者。 电流被引导到驱动器，使得通过转换感性负载引起的反激电压的影响减小。 当电流从感性负载流向驱动器电路时，提供临时放电路径，使得感性负载和电源电压之间的体二极管不被正向偏置。 相反，当电流从驱动器电路流入感性负载时，提供临时放电路径，使得感性负载和接地之间的体二极管未被正向偏置。 防止体二极管的正向偏压导致体二极管中存储的电荷的减少。 这又导致电源电压和接地电流和电压尖峰的减小。

公开(公告)号：US5258664A

公开(公告)日：1993-11-02

申请号：US725966

申请日：1991-07-05

申请人： Bert White

发明人： Bert White

IPC分类号： G11C27/02 ,  H03F1/08 ,  H03F1/30 ,  H03F3/45 ,  H03M1/10 ,  H03M1/12 ,  H03F1/02

CPC分类号： H03F1/303 ,  G11C27/026 ,  H03F3/45479

摘要： The switched capacitor amplifier circuit of the present invention employs a single amplifier with a built-in sample and hold and input auto zero. The built-in sample and hold of the present invention provides a continuously valid output in a multi-phase system. The present invention comprises a new auto zero configuration and a new amplifier. The new amplifier is referred to as the AZAMP. The circuit configuration of the AZAMP of the present invention comprises a two stage amplifier with switches added to the circuitry to provide the sample and hold function. By disconnecting the second stage during the hold mode, the output voltage will remain unchanged due to the voltage stored on a capacitor within the AZAMP. Charge cancelling circuitry is coupled to the sample and hold circuitry to cancel the charge injected onto said capacitor when the switch is turned off. The AZAMP of the present invention also has a self-contained auto zero function. The resulting benefits are reduced area consumption and low input equivalent offset.

摘要翻译： 本发明的开关电容放大器电路采用具有内置采样保持和自动归零输入的单个放大器。 本发明的内置采样和保持在多相系统中提供连续有效的输出。 本发明包括新的自动调零配置和新的放大器。 新的放大器被称为AZAMP。 本发明的AZAMP的电路结构包括一个两级放大器，其具有添加到电路中的开关以提供采样和保持功能。 通过在保持模式期间断开第二级，由于存储在AZAMP内的电容器上的电压，输出电压将保持不变。 电荷消除电路耦合到采样和保持电路以消除当开关断开时注入到所述电容器上的电荷。 本发明的AZAMP还具有独立的自动调零功能。 所产生的益处是减少面积消耗和低投入等值抵消。

公开(公告)号：US08271216B2

公开(公告)日：2012-09-18

申请号：US12720607

申请日：2010-03-09

申请人： Bert White ,  Kourosh Boutorabi

发明人： Bert White ,  Kourosh Boutorabi

IPC分类号： G06F19/00 ,  H02H7/00

CPC分类号： G01R15/146 ,  G01R19/2513

摘要： The present disclosure includes a power measurement, circuit breaker or integrated protection system including isolated analog-to-digital modulators for measuring current using current sensors, such as, for example, current shunts, in a single or multiphase power system. In one embodiment, the modulators are divided into a line-side device with an analog-to-digital modulator and a host-side device including a decimation filter and a processor. In one embodiment, an isolation barrier, such as, for example, a pulse transformer, divides the lineside device from the host-side device.

摘要翻译： 本公开包括功率测量，断路器或集成保护系统，其包括用于在单相或多相电力系统中使用电流传感器（例如，电流分流）测量电流的隔离的模拟 - 数字调制器。 在一个实施例中，调制器被划分为具有模拟 - 数字调制器的线路侧设备和包括抽取滤波器和处理器的主机侧设备。 在一个实施例中，隔离屏障（例如脉冲变压器）将线路设备与主机侧设备分开。

公开(公告)号：US20110320157A1

公开(公告)日：2011-12-29

申请号：US12826272

申请日：2010-06-29

申请人： Bert White

发明人： Bert White

IPC分类号： G06F19/00

CPC分类号： G01D3/0365 ,  G01K7/42

摘要： A temperature sensing circuit is described providing a low power temperature sensing system. The temperature sensing circuit provides a digital method for determining the temperature by analyzing the change in electrical response characteristics of a circuit device.

摘要翻译： 描述了提供低功率温度感测系统的温度感测电路。 温度检测电路通过分析电路装置的电响应特性的变化来提供用于确定温度的数字方法。

公开(公告)号：US20110184675A1

公开(公告)日：2011-07-28

申请号：US12720607

申请日：2010-03-09

申请人： Bert White ,  Kourosh Boutorabi

发明人： Bert White ,  Kourosh Boutorabi

IPC分类号： G01R21/06 ,  G01R19/145

CPC分类号： G01R15/146 ,  G01R19/2513

摘要： The present disclosure includes a power measurement, circuit breaker or integrated protection system including isolated analog-to-digital modulators for measuring current using current sensors, such as, for example, current shunts, in a single or multiphase power system. In one embodiment, the modulators are divided into a line-side device with an analog-to-digital modulator and a host-side device including a decimation filter and a processor. In one embodiment, an isolation barrier, such as, for example, a pulse transformer, divides the line-side device from the host-side device.

摘要翻译： 本公开包括功率测量，断路器或集成保护系统，其包括用于在单相或多相电力系统中使用电流传感器（例如，电流分流）测量电流的隔离的模拟 - 数字调制器。 在一个实施例中，调制器被划分为具有模拟 - 数字调制器的线路侧设备和包括抽取滤波器和处理器的主机侧设备。 在一个实施例中，隔离屏障，例如脉冲变压器，将线路侧设备与主机侧设备分开。

公开(公告)号：US20050225469A1

公开(公告)日：2005-10-13

申请号：US11084713

申请日：2005-03-18

申请人： Bert White

发明人： Bert White

IPC分类号： G01R11/00 ,  G01R21/133 ,  H03M1/12

CPC分类号： G01R21/133

摘要： A method and apparatus for obtaining power computation parameters is presented. Accurate computation of power requires multiplying voltage and current at the same instant of time and integrating the results over time. The present invention provides a method of using a single Analog to Digital Converter to convert both voltage and current for all the phases of any electrical system and then digitally compensating for the phase error caused by the non-simultaneous sampling of the current and voltage signals. The compensating filter could be implemented as a simple interpolator, an all-pass filter, or a combination of both. A single multiplexer is used to select which signal is processed by the Analog to Digital Converter. By scheduling and converting the voltage and analog signals one at a time, potential for crosstalk is significantly reduced, power requirement is reduced, and die size requirement is reduced.

摘要翻译： 提出了一种获取功率计算参数的方法和装置。 功率的精确计算需要在相同的时刻乘以电压和电流，并且随着时间的推移积分结果。 本发明提供了使用单个模数转换器来转换任何电气系统的所有相位的电压和电流的方法，然后对由电流和电压信号的非同时采样引起的相位误差进行数字补偿。 补偿滤波器可以被实现为简单的内插器，全通滤波器或两者的组合。 单个多路复用器用于选择哪个信号由模数转换器处理。 通过一次一个地调整和转换电压和模拟信号，显着降低了串扰的可能性，降低了功率需求，降低了芯片尺寸要求。