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81. 发明授权

US10585122B2 Current detection circuit not affected by noise 有权
公开(公告)号：US10585122B2
公开(公告)日：2020-03-10
申请号：US15692325
申请日：2017-08-31
申请人： FANUC CORPORATION
发明人： Kunio Tsuchida , Taku Sasaki , Kiichi Inaba
IPC分类号： G01R19/00 , G01R19/165 , G01R19/18
摘要： A current detection circuit includes: a resistor in a current path; first and second signal transmission units that transmit signals of first and second terminal sides of the resistor; a first difference operation unit that executes a difference operation on the signals transmitted by the first and second signal transmission units; a noise-capturing transmission unit starting point; third and fourth signal transmission units connected with the noise-capturing transmission unit starting point; a second difference operation unit that executes a difference operation on the signals transmitted by the third and fourth signal transmission units; and a summing operation unit that executes a summing operation on the first and second difference signals, wherein the first signal transmission unit and the fourth signal transmission unit are disposed close to each other and the second signal transmission unit and the third signal transmission unit are disposed close to each other.

82. 发明申请

US20180067148A1 CURRENT DETECTION CIRCUIT NOT AFFECTED BY NOISE 审中-公开
公开(公告)号：US20180067148A1
公开(公告)日：2018-03-08
申请号：US15692325
申请日：2017-08-31
申请人： FANUC CORPORATION
发明人： Kunio TSUCHIDA , Taku SASAKI , Kiichi INABA
IPC分类号： G01R19/00 , G01R19/18 , G01R19/165
CPC分类号： G01R19/0053 , G01R1/203 , G01R1/30 , G01R19/0092 , G01R19/16538 , G01R19/18
摘要： A current detection circuit includes: a resistor in a current path; first and second signal transmission units that transmit signals of first and second terminal sides of the resistor; a first difference operation unit that executes a difference operation on the signals transmitted by the first and second signal transmission units; a noise-capturing transmission unit starting point; third and fourth signal transmission units connected with the noise-capturing transmission unit starting point; a second difference operation unit that executes a difference operation on the signals transmitted by the third and fourth signal transmission units; and a summing operation unit that executes a summing operation on the first and second difference signals, wherein the first signal transmission unit and the fourth signal transmission unit are disposed close to each other and the second signal transmission unit and the third signal transmission unit are disposed close to each other.

83. 发明授权

US09167023B2 Power measurement circuit 有权
标题翻译：功率测量电路
公开(公告)号：US09167023B2
公开(公告)日：2015-10-20
申请号：US14078118
申请日：2013-11-12
申请人： STMicroelectronics International N.V.
发明人： Surinder Pal Singh , Kaushik Saha
IPC分类号： G01R19/18 , H04L29/08 , G01R21/133 , G01R19/22 , H04L12/24
CPC分类号： H04L67/025 , G01R19/22 , G01R21/133 , H04L41/32
摘要： A system for power measurement in an electronic device includes a sensing unit, an analog-to-digital converter (ADC) and a controller. The sensing unit senses voltage across a power source and modulates a carrier signal based on the sensed voltage. The ADC converts a combination of the modulated carrier signal and audio signals received by the electronic device to generate a digitized combined signal and provides the digitized combined signal to the controller. The controller separates digitized modulated carrier signal and digitized audio signals. The digitized modulated carrier signal is demodulated to generate an output signal that provides a measure of the power consumed by the electronic device.
摘要翻译：电子设备中的功率测量系统包括感测单元，模数转换器（ADC）和控制器。感测单元感测电源两端的电压，并根据检测到的电压调制载波信号。 ADC转换由电子设备接收的调制载波信号和音频信号的组合，以产生数字化的组合信号，并将数字化的组合信号提供给控制器。控制器分离数字化调制载波信号和数字化音频信号。数字化调制载波信号被解调以产生提供电子设备消耗的功率的量度的输出信号。

84. 发明授权

US09151784B2 AC voltage detecting circuit and image forming apparatus having the same 有权
标题翻译：交流电压检测电路及其成像装置
公开(公告)号：US09151784B2
公开(公告)日：2015-10-06
申请号：US13569768
申请日：2012-08-08
申请人： Katsumi Inukai
发明人： Katsumi Inukai
IPC分类号： G01R19/18
CPC分类号： G01R19/18 , H02M2001/0006
摘要： An AC voltage detecting circuit comprises: a first capacitor including a first electrode configured to connect to one end of an AC power supply, and a second electrode; a second capacitor including a first electrode configured to connect to the other end of the AC power supply, and a second electrode; a current-to-voltage converting circuit, which is connected in series between the second electrode of the first capacitor and the second electrode of the second capacitor, and which is connected to a reference potential, wherein the current-to-voltage converting circuit causes the AC current to pass through the current-to-voltage converting circuit when the AC current returns to the AC power supply, and converts an AC current output from the AC power supply into an detection AC voltage; and a voltage detecting unit, which detects an AC input voltage of the AC power supply, based on the detection AC voltage.
摘要翻译： AC电压检测电路包括：第一电容器，包括被配置为连接到AC电源的一端的第一电极和第二电极; 第二电容器，包括被配置为连接到所述AC电源的另一端的第一电极和第二电极; 串联连接在第一电容器的第二电极和第二电容器的第二电极之间并连接到参考电位的电流 - 电压转换电路，其中电流 - 电压转换电路导致当交流电流返回到交流电源时，交流电流通过电流 - 电压转换电路，并将从交流电源输出的交流电转换为检测交流电压; 以及电压检测单元，其基于所述检测AC电压检测所述AC电源的AC输入电压。

85. 发明授权

US09063178B2 System for measuring current and method of making same 有权
标题翻译：电流测量系统及其制作方法
公开(公告)号：US09063178B2
公开(公告)日：2015-06-23
申请号：US13192262
申请日：2011-07-27
申请人： James H. Woelfel , Kaijam M. Woodley
发明人： James H. Woelfel , Kaijam M. Woodley
IPC分类号： G01R15/18 , G01R3/00 , G01R1/38 , G01R19/18 , G01R1/30 , G01R31/08 , G01R15/00 , G01R22/06 , G01R15/08 , G01R21/06 , G01R13/02 , G01R19/22 , G01R15/09 , G01R31/34 , G01R19/00
CPC分类号： G01R15/18 , G01R13/0218 , G01R15/002 , G01R15/005 , G01R15/08 , G01R15/09 , G01R19/0092 , G01R19/22 , G01R21/06 , G01R22/06 , G01R31/343 , H03M2201/2216 , Y10T29/49117
摘要： A system for measuring current includes a current monitoring system comprises a current sensor configured to sense a first current passing through a conductor and a voltage conversion device coupled to the current sensor and configured to receive a second current from the current sensor and convert the second current into a first voltage. A first scaling circuit is coupled to the voltage conversion device and configured to convert the first voltage to a second voltage proportional to the first current based on a first scaling factor, and a second scaling is circuit coupled to the voltage conversion device and configured to convert the first voltage to a third voltage proportional to the first current based on a second scaling factor, wherein the second scaling factor is different from the first scaling factor.
摘要翻译：一种用于测量电流的系统包括电流监测系统，其包括被配置为感测通过导体的第一电流的电流传感器和耦合到电流传感器的电压转换装置，并被配置为从电流传感器接收第二电流并将第二电流成为第一电压。第一缩放电路耦合到电压转换装置并且被配置为基于第一缩放因子将第一电压转换成与第一电流成比例的第二电压，并且第二缩放电路耦合到电压转换装置并且被配置为转换基于第二缩放因子将第一电压转换成与第一电流成比例的第三电压，其中第二比例因子不同于第一缩放因子。

86. 发明授权

US08373407B2 Intelligent electronic device having improved analog output resolution 有权
标题翻译：具有改进的模拟输出分辨率的智能电子设备
公开(公告)号：US08373407B2
公开(公告)日：2013-02-12
申请号：US12055493
申请日：2008-03-26
申请人： Tibor Banhegyesi
发明人： Tibor Banhegyesi
IPC分类号： G01R19/18
CPC分类号： G01D4/004 , G01R19/2513 , G01R21/1331 , G01R22/10 , Y02B90/242 , Y04S20/322 , Y04S20/46
摘要： A method and apparatus provides improved resolution in an analog signal, relative to the resolution of a digital-to-analog converter producing the signal. In one embodiment, a digital electrical power and energy meter varies a digital input to a digital-to-analog converter such that an average of the output of the digital-to-analog converter indicates a value with greater resolution than the instantaneous resolution of the digital-to-analog converter.
摘要翻译：相对于产生该信号的数模转换器的分辨率，方法和装置在模拟信号中提供改进的分辨率。在一个实施例中，数字电能和能量计改变数字到模拟转换器的数字输入，使得数模转换器的输出的平均值指示具有比分辨率的瞬时分辨率更高的分辨率的值数模转换器。

87. 发明授权

US07982452B2 Detection of a load state of a half-bridge 有权
公开(公告)号：US07982452B2
公开(公告)日：2011-07-19
申请号：US12512058
申请日：2009-07-30
申请人： Martin Feldtkeller
发明人： Martin Feldtkeller
IPC分类号： G01R19/18
CPC分类号： G01R31/42 , H05B41/2828 , H05B41/2856
摘要： Disclosed is a method for diagnosing a half-bridge having a first and a second switching element. The method includes providing a half-bridge that has a first and a second switching element connected in series with each other. The first and the second switching element are driven on and off cyclically, with the switching elements during one drive cycle being alternatingly driven on and off such that they are alternatingly subject to a load current flowing therethrough. A current measuring signal is provided, representing a current flow through one of the switching elements. A first reference signal is provided. A first diagnostic signal is generated that is dependent on an integral of the measuring signal over a first integration period, and on an integral of a first reference signal over a second integration period.

88. 发明申请

US20100259246A1 SPLIT SHAPE CLOSED LOOP CURRENT TRANSDUCER 审中-公开
标题翻译：分离形状闭合环路电流传感器
公开(公告)号：US20100259246A1
公开(公告)日：2010-10-14
申请号：US12682372
申请日：2007-12-03
申请人： Jang-Soo Kim
发明人： Jang-Soo Kim
IPC分类号： G01R19/18
CPC分类号： G01R15/202 , G01R15/207 , H01F27/402 , H01F38/28
摘要： A current transducer having an open/closed structure of a penetration piece through which a measurement target line passes, includes: one pair of Hall devices, formed on both end gaps of an upper side portion, for sensing a current amount of the line to be measured; a feedback coil, arranged on an upper portion of the Hall devices, for canceling out a magnetic flux density of a magnet by inducing a current of a reverse direction to a current conducted in the measurement target line; a closed loop current sensing circuit for measuring a current flowing into the feedback coil; and a signal conversion circuit section for converting a current form of the measurement target line measured from the closed loop current sensing circuit into a direct current conversion signal relative to an effective value required from equipment connected to the current transducer, and outputting the direct current conversion signal.
摘要翻译：具有测量目标线通过的穿透件的打开/闭合结构的电流传感器包括：形成在上侧部分的两个端部间隙上的一对霍尔器件，用于感测线的当前量测量; 布置在所述霍尔器件的上部的反馈线圈，用于通过产生与测量目标线中传导的电流相反的方向的电流来消除磁体的磁通密度; 闭环电流检测电路，用于测量流入反馈线圈的电流; 以及信号转换电路部分，用于将从闭环电流检测电路测量的测量目标线的当前形式相对于连接到电流传感器的设备所需的有效值转换成直流转换信号，并输出直流转换信号。

89. 发明申请

US20100102796A1 STATE DETECTION DEVICE FOR DETECTING OPERATION STATE OF HIGH-FREQUENCY HEATING APPARATUS 有权
标题翻译：用于检测高频加热装置操作状态的状态检测装置
公开(公告)号：US20100102796A1
公开(公告)日：2010-04-29
申请号：US12651229
申请日：2009-12-31
申请人： Hideaki Moriya , Nobuo Shirokawa , Haruo Suenaga , Shinichi Sakai , Manabu Kinoshita
发明人： Hideaki Moriya , Nobuo Shirokawa , Haruo Suenaga , Shinichi Sakai , Manabu Kinoshita
IPC分类号： G01R19/18
CPC分类号： H05B6/666 , H05B2206/043
摘要： An operating state detection technique is provided which makes it possible to accurately detect an abnormality of a high-frequency heating apparatus. An anode current detected by the anode current detection resistor 40 of a magnetron is inputted into the A/D converter terminal of a microcomputer 27 on a control panel circuit board side. The current is subjected to an analog-to-digital conversion to thereby obtain an anode voltage IaDC value. The microcomputer 27 determines an operating state based on a plurality of the anode voltage IaDC values thus read. Further, the microcomputer 27 obtains a summed value of the IaDC values corresponding to one period of the revolution of rotary antennas 68, 69 to thereby determines the operating state of the high-frequency heating apparatus 100 based on the summed value. According to the aforesaid IaDC value reading method, it makes it possible to accurately detect an abnormality without an erroneous operation also in correspondence to the change of the feeding distribution. Further, the microcomputer 27 changes, in accordance with the set output of the high-frequency heating apparatus, a threshold value used for determining the abnormality and a changing value (increasing amount) from the start of the operation with respect to the change of the output of the apparatus and the operating state of a heated subject etc., whereby it makes it possible to accurately detect an abnormality without an erroneous operation.
摘要翻译：提供了一种操作状态检测技术，其可以精确地检测高频加热装置的异常。由磁控管的阳极电流检测电阻器40检测的阳极电流被输入到控制面板电路板侧的微计算机27的A / D转换器端子中。对电流进行模数转换，得到阳极电压IaDC值。微计算机27基于这样读取的多个阳极电压IaDC值来确定操作状态。此外，微型计算机27获得与旋转天线68,69的一圈旋转相对应的IaDC值的相加值，从而基于求和值来确定高频加热装置100的运行状态。根据上述IaDC值读取方法，能够根据馈送分配的变化，精确地检测异常而不发生错误的操作。此外，微型计算机27根据高频加热装置的设定输出，根据操作开始时的变化来改变用于确定异常的阈值和变化值（增加量）输出装置和加热对象的操作状态等，从而可以在没有错误操作的情况下精确地检测异常。

90. 发明申请

US20100066350A1 CURRENT SENSOR 有权
标题翻译：电流传感器
公开(公告)号：US20100066350A1
公开(公告)日：2010-03-18
申请号：US12545918
申请日：2009-08-24
申请人： Norio MATSUMURA , Tatsuya AOKI
发明人： Norio MATSUMURA , Tatsuya AOKI
IPC分类号： G01R19/18
CPC分类号： G01R15/207 , G01R31/3696
摘要： A current sensor includes a housing having a pair of first slits, a bus bar supported by the housing and electrically connected to a battery post provided on a battery, an annular shield member arranged so as to surround an axis extending in a direction in which a current is flowed in the bus bar, and a magnetic-electric conversion element provided on the housing to detect a magnetic flux density of a magnetic field generated when the current is flowed in the bus bar and produce an electric signal. The magnetic-electric conversion element is arranged between the first slits. The shield member is inserted into the first slits so that the shield member is mounted on the housing.
摘要翻译：电流传感器包括具有一对第一狭缝的壳体，由壳体支撑并且电连接到设置在电池上的电池柱的母线;环形屏蔽构件，被布置成围绕沿着电流在母线中流动，并且设置在壳体上的磁电转换元件，以检测当电流在母线中流动时产生的磁场的磁通密度并产生电信号。磁电转换元件布置在第一狭缝之间。屏蔽部件被插入到第一狭缝中，使得屏蔽部件安装在壳体上。

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