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81. 发明授权

US4500973A Electronic devices 失效
标题翻译：电子设备
公开(公告)号：US4500973A
公开(公告)日：1985-02-19
申请号：US425737
申请日：1982-09-28
申请人： Anthony J. Ley
发明人： Anthony J. Ley
IPC分类号： G01R22/00 , G01R21/00 , G01R21/127 , G01R21/133 , G06J1/00 , G06G7/16
CPC分类号： G01R21/00 , G01R21/127
摘要： An electronic watthour meter for connection in a two-wire power distribution circuit comprises a shunt connected in one of the wires and an electronic circuit comprising a transconductance multiplier, a V to F converter and a reversible counter. The DC power supply of the electronic circuit is referred to the wire containing the shunt, which wire is always live, so that the electronic circuit "floats" electrically on this live wire. The first input of the multiplier can therefore be directly connected across the shunt, and the second input is connected via a high value resistance to the other wire so as to receive an input current representative of the voltage between the wires. To eliminate the effects of drift in the multiplier, the polarity of the input current to the multiplier and the direction of counting of the counter are periodically and simultaneously reversed by a square wave signal of 1:1 mark space ratio. The electronic circuit is implemented using LSI techniques.
摘要翻译：一种用于在二线配电电路中连接的电子电度计包括连接在其中一根导线中的分流器和包括跨导乘法器，V至F转换器和可逆计数器的电子电路。电子电路的直流电源被称为包含分流器的导线，该导线始终处于活动状态，使得电子电路在该电线上“浮动”。因此，乘法器的第一输入可以跨越分流器直接连接，并且第二输入端经由高电阻连接到另一条线，以便接收代表电线之间的电压的输入电流。为了消除乘法器中漂移的影响，输入到乘法器的电流的极性和计数器的计数方向通过1：1标记空间比的方波信号周期性地同时反转。电子电路采用LSI技术实现。

82. 发明授权

US4498138A Electronic watt/var transducer 失效
标题翻译：电子瓦/无功传感器
公开(公告)号：US4498138A
公开(公告)日：1985-02-05
申请号：US543742
申请日：1983-10-20
申请人： Prentice G. Moore
发明人： Prentice G. Moore
IPC分类号： G01R21/127 , G01R19/00 , G06G7/16
CPC分类号： G01R21/127
摘要： A watt/var transducer utilizing the pulse width-pulse height modulation type of multiplying scheme wherein a stable squarewave is generated by switching from one reference voltage to another reference voltage, the output thereof is integrated to produce a stable triangular wave output, the gain of which can be simply adjusted by shorting the output of amplifying means to various points in a resistive means contained in feedback means from the output to the input of said amplifying means. The frequency of the triangular wave output is high relative to any alternating signal which may pass upon the power line to be monitored by the transducer such that those portions of said alternating signal sampled by the multiplier portion of the transducer appear to be non-alternating signals thereby rendering the transducer capable of multiplying alternating signals as well as non-alternating signals.
摘要翻译：利用乘法方式的脉冲宽度 - 脉冲高度调制型的瓦特/变换器，其中通过从一个参考电压切换到另一个参考电压产生稳定的方波，其输出被积分以产生稳定的三角波输出，其可以通过将放大装置的输出短路到包含在反馈装置中的电阻装置中从输出到所述放大装置的输入而简单地调节。三角波输出的频率相对于可能通过由换能器监测的电力线的任何交变信号而高，使得由换能器的乘法器部分采样的所述交变信号的那些部分看起来是非交替信号从而使换能器能够交替地交替信号以及非交替信号。

83. 发明授权

US4475081A Electronic watthour meter 失效
标题翻译：电子电度表
公开(公告)号：US4475081A
公开(公告)日：1984-10-02
申请号：US333887
申请日：1981-12-23
申请人： Shunichi Kobayashi
发明人： Shunichi Kobayashi
IPC分类号： G03B7/083 , G01R19/14 , G01R21/00 , G01R21/127 , G01R11/32
CPC分类号： G01R19/14 , G01R21/00 , G01R21/127
摘要： An electronic watthour meter includes a power flow direction detector circuit which detects the power flow direction and a pulse width modulation circuit for converting a voltage signal proportional to the load voltage into a pulse signal. In accordance with the output of the power flow direction circuit, the polarity of the output signal of the pulse width modulation circuit is either inverted or not inverted. A multiplication circuit produces the product of the voltage signal proportional to the load voltage and a voltage signal proportional to the load current under the control of the output of the pulse modulation circuit.
摘要翻译：电子电度表包括检测功率流动方向的功率流向检测器电路和用于将与负载电压成比例的电压信号转换为脉冲信号的脉冲宽度调制电路。根据功率流向电路的输出，脉冲宽度调制电路的输出信号的极性反转或不反转。乘法电路产生与负载电压成比例的电压信号和在脉冲调制电路的输出控制下与负载电流成比例的电压信号。

84. 发明授权

US4434400A Circuit for supervising an electronic electricity meter 失效
标题翻译：电子电表监控电路
公开(公告)号：US4434400A
公开(公告)日：1984-02-28
申请号：US257915
申请日：1981-04-27
申请人： Mathis Halder , Jakob Widmer , Jacob De Vries
发明人： Mathis Halder , Jakob Widmer , Jacob De Vries
IPC分类号： G01R35/00 , G01R21/127 , G01R22/00 , G01R1/36 , G08B23/00
CPC分类号： G01R21/127
摘要： In an electronic energy consumption meter using a mark-space amplitude multiplier, including a current-frequency transducer, a first supervisory circuit is coupled to, and supervises the mark-space modulator multiplier, a second supervisory circuit is coupled to, and supervises the current-frequency transducer, and a fault indicator is coupled to the output of each of the supervisory circuits for indicating a fault in the meter.
摘要翻译：在使用包括电流频率换能器的标记空间幅度倍增器的电子能量消耗计量器中，第一监控电路耦合到监视标记空间调制器乘法器，并且监视标记空间调制器乘法器，第二监控电路耦合到并监视电流频率传感器，并且故障指示器耦合到每个监控电路的输出以指示仪表中的故障。

85. 发明授权

US4315212A Electronic watthour meter 失效
标题翻译：电子电度表
公开(公告)号：US4315212A
公开(公告)日：1982-02-09
申请号：US55480
申请日：1979-07-06
申请人： Ryouji Gamoh
发明人： Ryouji Gamoh
IPC分类号： G01R22/00 , G01R21/127 , G01R21/06 , G01R11/16
CPC分类号： G01R21/127
摘要： An electronic watthour meter comprising: a pulse width modulation circuit for subjecting a voltage signal, proportional to the load voltage of a power supply line, to pulse width modulation to obtain a pulse width duty cycle signal; a multiplication circuit in which a plurality of analog switches are selectively operated, with the aid of the pulse width duty cycle signal, so that positive and negative DC voltages equal in absolute value are obtained from the product of a voltage signal, proportional to the consumption current of the power supply line, and the pulse width duty cycle signal attributing to the voltage signal proportional to the load voltage; and a dual-slope type frequency conversion circuit for converting the positive and negative DC voltages into a frequency signal.
摘要翻译：一种电子电度表，包括：脉冲宽度调制电路，用于对与电源线的负载电压成比例的电压信号进行脉宽调制以获得脉冲宽度占空比信号; 借助于脉冲宽度占空比信号选择性地操作多个模拟开关的乘法电路，从而从与消耗成比例的电压信号的乘积获得绝对值相等的正和负直流电压电源线的电流和归因于与负载电压成比例的电压信号的脉宽占空比信号; 以及用于将正和负直流电压转换成频率信号的双斜率型变频电路。

86. 发明授权

US4217546A Electronic energy consumption meter and system with automatic error correction 失效
标题翻译：电子能量消耗计和系统具有自动纠错功能
公开(公告)号：US4217546A
公开(公告)日：1980-08-12
申请号：US967964
申请日：1978-12-11
申请人： Miran Milkovic
发明人： Miran Milkovic
IPC分类号： G01R22/00 , G01R21/00 , G01R21/127 , G01R21/06
CPC分类号： G01R21/00
摘要： An electronic energy consumption meter and system includes means for automatically correcting for overall system signal and voltage errors and offset errors created by circuits in the system to provide a meter requiring no adjustments for the compensation of the various system and circuit errors.
摘要翻译：电子能量消耗计和系统包括用于自动校正系统中由系统产生的整个系统信号和电压误差以及偏移误差的装置，以提供不需要调整各种系统和电路错误的补偿的仪表。

87. 发明授权

US4058768A Two-way electronic kWh meter 失效
标题翻译：双向电子千分表
公开(公告)号：US4058768A
公开(公告)日：1977-11-15
申请号：US757799
申请日：1977-01-07
申请人： Miran Milkovic
发明人： Miran Milkovic
IPC分类号： G01R22/00 , G01R21/127 , G01R11/32
CPC分类号： G01R21/127
摘要： A two-way electronic kWh meter is disclosed for metering electrial power and energy consumption in a single phase or polyphase electrical system wherein power and energy may be imported to the system or exported from the system to another system. Pairs of analog signals representing current and voltage variables are derived. Each pair of analog signals is multiplied together to derive partial instantaneous power signals. These signals are summed and integrated to thereby provide a signal which is proportional to the total energy being imported or exported with respect to the electrical system. The output of the integrator is converted to a pulse train having each pulse proportional to the energy being imported or exported with respect to the system. The partial instantaneous power signals are also summed and averaged, with the polarity of the resulting signal being detected by a polarity detector. Depending upon the polarity of the signal being detected, an import or export record and display arrangement is connected to receive the pulse train to record the quantity of energy being imported or exported with respect to the system. An error correction system is also provided, wherein the phasing of the voltage variable signals and the phasing of the polarity detector is switched each time an output pulse is generated.
摘要翻译：公开了一种用于在单相或多相电气系统中测量电力功率和能量消耗的双向电子千分表，其中功率和能量可以被导入到系统或从系统导出到另一系统。导出表示电流和电压变量的模拟信号对。每对模拟信号被相乘以得到部分瞬时功率信号。将这些信号相加和积分，从而提供与相对于电气系统进口或输出的总能量成比例的信号。积分器的输出被转换成脉冲序列，每个脉冲与相对于系统导入或导出的能量成比例。部分瞬时功率信号也被相加和平均，由此产生的信号的极性由极性检测器检测。根据检测到的信号的极性，连接导入或导出记录和显示装置以接收脉冲序列以记录相对于系统被导入或导出的能量的量。还提供了一种误差校正系统，其中每当产生输出脉冲时，切换电压可变信号的相位和极性检测器的定相。

88. 发明授权

US4027241A Solid state watt and var transducer 失效
标题翻译：固态瓦特和无功传感器
公开(公告)号：US4027241A
公开(公告)日：1977-05-31
申请号：US687837
申请日：1976-05-19
申请人： Jeremy P. Jauch
发明人： Jeremy P. Jauch
IPC分类号： G01R21/127 , G01R21/06
CPC分类号： G01R21/127
摘要： This application discloses a solid state high output watt transducer which utilizes the pulse width-pulse height multiplication principle and comprises digital integrated circuits for obtaining a direct current output which is proportioned to watts.
摘要翻译：该申请公开了一种利用脉冲宽度 - 脉冲高度乘法原理的固态高输出功率传感器，并且包括用于获得与瓦特成比例的直流输出的数字集成电路。

89. 发明授权

US3995178A Pulse-width and frequency modulator circuit 失效
标题翻译：脉宽调制电路
公开(公告)号：US3995178A
公开(公告)日：1976-11-30
申请号：US627878
申请日：1975-10-31
申请人： Roswell W. Gilbert
发明人： Roswell W. Gilbert
IPC分类号： G01R21/127 , G01R29/027 , G06G7/161 , H03F3/72 , H03K7/02 , H03K7/06 , H03K7/08 , H03K1/16
CPC分类号： G01R29/0273 , G01R21/127 , G06G7/161 , H03F3/72 , H03K7/02 , H03K7/06 , H03K7/08
摘要： A very accurate, low-offset switching circuit is provided. The switching circuit is used in a modulator which permits output pulses to be modulated in width and/or frequency. The reversible output signals of the switching circuit are added to the modulating input signal and the sum is integrated. A level detector changes the polarity of its output voltage whenever the output of the integrator reaches either of two fixed levels. The output of the level detector is used to drive the field-effect transistors to control the switching of the output of the differential amplifier.
摘要翻译：提供非常精确的低失调开关电路。开关电路用于允许在宽度和/或频率上调制输出脉冲的调制器。开关电路的可逆输出信号加到调制输入信号上，并且积分。每当积分器的输出达到两个固定电平时，电平检测器就会改变其输出电压的极性。电平检测器的输出用于驱动场效应晶体管以控制差分放大器的输出的切换。

90. 发明授权

US3961257A Single phase 3-wire electronic electrical energy meter 失效
标题翻译：单相3线电子电能表
公开(公告)号：US3961257A
公开(公告)日：1976-06-01
申请号：US505798
申请日：1974-09-13
申请人： Miran Milkovic
发明人： Miran Milkovic
IPC分类号： G01R21/127 , G01R7/00 , G01R11/32
CPC分类号： G01R21/1273
摘要： Metering kWh in a single phase, 3-wire, F.sub.L Hertz a.c. electrical system is accomplished by detecting the current flow in two lines of the three-wire system by means of a current transformer having two primary windings and a single secondary winding. The voltage in the system is detected by means of a potential transformer having the primary windings thereof connected across the load impedances and having the secondary thereof connected to a pulse width amplitude modulated multiplier. The multiplier derives a signal which is proportional to the current in the system and the detected voltage across the load impedances thereof. The output of the multiplier is converted to a d.c. voltage which is proportional to the total average power consumed by each of the load impedances with the d.c. average power voltage being converted to a pulse train by an analog-to-pulse rate converter. Thus the output of the analog-to-pulse rate converter is a series of output pulse signals having a variable signal repetition rate f proportional to the average power with each pulse signal representing a constant or quantized amount of electrical energy. A counter or register performs conventional accumulation storage and display functions in response to the series of output pulses delivered thereto from the analog to pulse rate converter.
摘要翻译：单相测量kWh，3线，FL赫兹a.c. 通过利用具有两个初级绕组和一个次级绕组的电流互感器来检测三线制系统的两条线路中的电流来实现电气系统。系统中的电压通过其一次绕组连接在负载阻抗上并且其次级连接到脉冲幅度调制乘法器的电压互感器来检测。乘法器导出与系统中的电流成比例的信号和跨过其负载阻抗的检测电压。乘数的输出转换为直流。电压与每个负载阻抗与直流负载消耗的总平均功率成正比。平均功率电压由模拟脉冲速率转换器转换成脉冲串。因此，模拟脉冲速率转换器的输出是具有与平均功率成比例的可变信号重复率f的一系列输出脉冲信号，每个脉冲信号表示恒定或量化的电能量。计数器或寄存器响应于从模拟脉冲速率转换器传递给其的一系列输出脉冲，执行传统的累积存储和显示功能。

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