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公开(公告)号：JP2014027722A
公开(公告)日：2014-02-06
申请号：JP2012164212
申请日：2012-07-24
Applicant: Toshiba Corp , 株式会社東芝
Inventor： NAOI SHINYA , MARUYAMA RYOJI
Abstract: PROBLEM TO BE SOLVED: To provide a power supply system capable of reducing amplitude of a ripple of output voltage even when using a small-sized filter.SOLUTION: A power supply system comprises a plurality of power conversion devices. A power conversion device on the transmission side transmits preliminary announcement time at which a synchronization signal is to be transmitted, by a telegram message; and transmits the synchronization signal at timing corresponding to the preliminary announcement time. A power conversion device on the reception side receives the telegram message, receives the synchronization signal at timing corresponding to the preliminary announcement time in the telegram message, and outputs pulse-width modulated voltage in a square wave shape at time shifted by predetermined time from the time of receiving the synchronization signal. An occurrence frequency of the voltage in the square wave shape is increased in the whole power supply system using the plurality of power conversion devices to apparently increase a frequency of the output voltage in a square wave shape.
Abstract translation: 要解决的问题：提供即使在使用小型滤波器时也能够减小输出电压纹波的幅度的电源系统。解决方案：电源系统包括多个功率转换装置。 发送侧的电力变换装置通过电报消息发送同步信号要发送的初步通知时间; 并且在与初步通知时间对应的定时发送同步信号。 接收侧的电力变换装置接收电报消息，在与电报信息中的初步通知时间相对应的定时接收同步信号，并将时间偏移预定时间的脉冲宽度调制电压从 接收同步信号的时间。 在使用多个电力转换装置的整个电力供给系统中，以波方形状显着增加输出电压的频率，使得方波电压的发生频率增加。
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公开(公告)号：JPH08213669A
公开(公告)日：1996-08-20
申请号：JP1484795
申请日：1995-02-01
Applicant: TOSHIBA CORP
Inventor： MARUYAMA RYOJI
Abstract: PURPOSE: To provide a Hall element wherein a depletion layer is not formed and the variation of characteristics is little, and an electric amount measuring equipment of small measurement error. CONSTITUTION: The Hall element is provided with the following; a pair of current input electrodes PV1 , PV2 formed on a semiconductor substrate of low impurity concentration, a pair of voltage output electrodes PV1 , PV2 formed at positions orthogonally intersecting the current flowing between a pair of the current input electrodes PI1 , PI2 , and a pair of substrate electrodes PS1 , PS2 which are formed in the vicinity of a pair of the current input electrodes PI1 , PI2 and in contact with the semiconductor substrate. Thereby a Hall element wherein the nonlinearity and variation of characteristics caused by the formation of a depletion layer are little can be obtained. By using the Hall element, an electric amount measuring equipment of high precision can be constituted.
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公开(公告)号：JPH07244083A
公开(公告)日：1995-09-19
申请号：JP3354294
申请日：1994-03-03
Applicant: TOSHIBA CORP
Inventor： MARUYAMA RYOJI
Abstract: PURPOSE:To achieve highly accurate measurement with improved temperature characteristic by keeping an input resistance at a fixed value regardless of an offset compensation made to suppress changes in sensitivity. CONSTITUTION:This apparatus has a Hall element 1 to which a magnetic field is applied in direct proportion to a current value in a system to be measured, a current supply means 2, R1 and OP1 to run a DC current of a fixed value between current input terminals T1 and T2 in the Hall element 1 and offset compensation means 4 and G4 which detect offset developing at voltage output terminals T3 and T4 to compensate the offset by varying one equivalence resistance among four equivalence resistances in the Hall element 1. Moreover, input resistance control means OP2, R3, R3 and G1-G3 are provided to vary retaining three equivalence resistances so that a voltage generated between the current input terminals T1 and T2 by the DC current of the fixed value is kept at a fixed value.
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公开(公告)号：JPH06289061A
公开(公告)日：1994-10-18
申请号：JP7350593
申请日：1993-03-31
Applicant: TOSHIBA CORP
Inventor： MARUYAMA RYOJI
Abstract: PURPOSE:To provide an electric amount measuring instrument in which connecting operability is improved and which has space conservation and a low cost. CONSTITUTION:A piezo element 4 is brought fixedly into contact with a power supply wire 1 connected to a load 2. When the wire 1 is vibrated by magnetostriction generated due to an AC current, the element 4 converts the displacement due to the vibration to an electric signal. This signal is converted to a digital value by an A/D converter 5 and displayed on a display unit 6.
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公开(公告)号：JPH06265586A
公开(公告)日：1994-09-22
申请号：JP5361793
申请日：1993-03-15
Applicant: TOSHIBA CORP
Inventor： MARUYAMA RYOJI
IPC: G01R21/08
Abstract: PURPOSE:To provide a power multiplying circuit in which fluctuation of offset voltage due to temperature variation, drift, etc., can be corrected automatically. CONSTITUTION:The power multiplying circuit comprises a first Hall element 3, a second Hall element 4, means 9 for detecting the offset of the differential voltage between the output terminal of the first or second Hall element 3, 4 and an output terminal having positional symmetry with the output terminal of the first Hall element 3, a first circuit 5 for sustaining the control current for the first Hall element 3 at a constant level, and a second circuit 6 for modifying the control current value for the second Hall element 4 depending on the output value from an output voltage offset detecting means 9. Since initial regulation of offset voltage is not required, work process is simplified. Furthermore, since regulation mechanism is eliminated, large scale integration is facilitated and high reliability is achieved.
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Patent Agency Ranking
公开(公告)号：JPH0365812A
公开(公告)日：1991-03-20
申请号：JP20136789
申请日：1989-08-04
Applicant: TOSHIBA CORP
Inventor： MARUYAMA RYOJI
Abstract: PURPOSE:To set a harmonic components ratio to an input signal optionally by revising a transfer function in response to the frequency of an input signal. CONSTITUTION:A comparator 1 detects passing of zero volt (zero cross) of an input terminal from an input terminal 3. Moreover, a counter 5 receives the result of detection of the comparator 1 and counts the number of pulses with a prescribed frequency supplied from an oscillator 7 from the rise of the pulse till the rise of the succeeding pulse. That is, since the rise interval of the pulses corresponds to the frequency of the input signal through the zero cross detection by the comparator 1, the frequency of the input signal is detected as the number of pulse with a sufficiently high frequency. Then a coder 9 outputs a 4-bit control signal for on/off of switches SW1-SW8 in response to the result of the detection of the frequency of the input signal from the counter 5. Thus, the transfer function is changed in response to the frequency of the input signal to adjust the parameter such as a cut-off frequency is optionally adjusted.
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公开(公告)号：JPH02271717A
公开(公告)日：1990-11-06
申请号：JP9261989
申请日：1989-04-12
Applicant: TOSHIBA CORP
Inventor： MATSUKI KOJI , MARUYAMA RYOJI
Abstract: PURPOSE:To form a non-integer frequency division ratio with combination of M and N by constitution comprising a device of a basic frequency divider circuit which is operated at a frequency division ratio of 2M-1 or 2M (M>=2) and an N-notation counter (N is an odd number >=3). CONSTITUTION:A D FFs Q9-Q12, a NAND gate 3 and an OR gate 4 constitute a frequency divider circuit. An outputs of a FF Q11 of the 3rd bit and a FF Q12 of the 4th bit are connected to gates 4, 3. The operation of 1/8 frequency division is attained when a control signal applied to other input C of the gate 4 in the circuit above goes to H and the operation of 1/7 frequency division is attained when the control signal goes to L. A 11-adic counter B connects to a frequency divider circuit A. The operation of the 11-adic counter is circulated while being started from 1/7 frequency division and finished to 1/7 frequency division during 82 sets of input clock periods and the 1/8 frequency division is repeated to an input clock signal IN, a clear signal CLB, node waveforms A-G shown in figure and an output OUT. Thus, a prescribed frequency division ratio, that is, a non-integer frequency division ratio is taken.
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公开(公告)号：JP2009128321A
公开(公告)日：2009-06-11
申请号：JP2007306530
申请日：2007-11-27
Applicant: Toshiba Corp , 株式会社東芝
Inventor： KUROKAWA FUYUKI , MARUYAMA RYOJI , SAKOYAMA MITSUHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a watt-hour meter having a current detection section which does not consume much labor in its manufacturing. SOLUTION: The watt-hour meter is constituted of a current wire 206, having a coil section 301 that serves as the primary side of a current transformer, and a current sensor made of a secondary coil section, having coil patterns 402, 405 that serves as the secondary side of the current transformer supported by a flexible material, such as, a flexible printed circuit board. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提供一种具有在其制造中不消耗大量劳动的电流检测部的电度表。 解决方案：电度表由具有作为电流互感器的初级侧的线圈部301的电流线206和由次级线圈部构成的电流传感器构成，线圈图案402， 405，其用作由柔性材料（例如柔性印刷电路板）支撑的电流互感器的次级侧。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2005071099A
公开(公告)日：2005-03-17
申请号：JP2003300310
申请日：2003-08-25
Applicant: Toshiba Corp , Toshiba Meter Techno Kk , 東芝メーターテクノ株式会社 , 株式会社東芝
Inventor： MARUYAMA RYOJI , SHINDOU TAKAHIKO , TOMONAGA MINORU
IPC: G08B21/02
Abstract: PROBLEM TO BE SOLVED: To eliminate the need to replace batteries for an abnormality reporting terminal carried by a care receiver by preventing the terminal from becoming unable to report any abnormality due to the dissipation of power stored in the batteries.
SOLUTION: In one embodiment, the abnormality reporting terminal 1 comprises an abnormality detection means 5 for detecting the occurrence of any abnormality; a sending means 6 for sending an abnormality signal when the abnormality detection means 5 detects an abnormality; and a thermoeletric conversion part 2 including a thermoelectric conversion element which provides electric electric power produced by the Seebeck effect to the abnormality detection means 5 and the sending means 6.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：为了消除由于保存在电池中的电力消耗而导致终端不能报告任何异常的情况，不需要更换由保养接收器携带的异常报告终端的电池。 解决方案：在一个实施例中，异常报告终端1包括用于检测任何异常的发生的异常检测装置5; 发送装置6，用于当异常检测装置5检测到异常时发送异常信号; 以及热电转换部件2，其包括将由塞贝克效应产生的电力提供给异常检测装置5和发送装置6的热电转换元件。（C）2005，JPO＆NCIPI
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公开(公告)号：JP2000258473A
公开(公告)日：2000-09-22
申请号：JP5781599
申请日：1999-03-05
Applicant: TOSHIBA CORP
Inventor： MARUYAMA RYOJI
IPC: G01R22/00 , G01R11/48 , G01R21/00 , G01R21/133
Abstract: PROBLEM TO BE SOLVED: To provide a reactive power computing device and a reactive energy measuring device reducing the number of analogue parts and the size in spite of formation of LSI for lowering costs. SOLUTION: A voltage V1 and a current A1 inputted from input terminals T1, T2 are A/D converted by delta modulators 101, 102 individually so as to be turned into 1-bit output data. The 1-bit output data of the delta modulator 101 is delayed by a 90 deg. equivalent of the input voltage V1 by means of a phase shifting circuit 115 using an RAM (semiconductor memory) or a shift register, and then, reactive power is computed by a circuit in the subsequent stage. In this constitution, the number of analogue parts can be lowered, while the size of the device can be reduced even if formation into an LSI is carried out, so that the costs can be lowered.
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