WO2009088101A1 - 被駆動体としての制御用アクチュエータの信号状態診断装置 - Google Patents
被駆動体としての制御用アクチュエータの信号状態診断装置 Download PDFInfo
- Publication number
- WO2009088101A1 WO2009088101A1 PCT/JP2009/050599 JP2009050599W WO2009088101A1 WO 2009088101 A1 WO2009088101 A1 WO 2009088101A1 JP 2009050599 W JP2009050599 W JP 2009050599W WO 2009088101 A1 WO2009088101 A1 WO 2009088101A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- voltage
- current
- circuit
- driven body
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
- G01R31/2829—Testing of circuits in sensor or actuator systems
Definitions
- the present invention relates to a signal condition diagnosis apparatus for a control actuator as a driven body, and in particular, for control of a plant or equipment, fully open, fully closed, and fully open to fully closed in response to an input voltage signal. Check whether the voltage signal applied to the driven body, which is a control actuator such as a servo valve that is controlled by the opening, is correctly transmitted to the driven body, and the circuit wiring is disconnected or short-circuited.
- the present invention relates to a signal condition diagnosis apparatus for a control actuator as a driven body, which can perform a soundness diagnosis of a circuit such as a key that has not occurred. Background art
- Control means used to control plants and equipment include control actuators such as servo valves that are fully open, fully closed, and controlled between fully open and fully closed according to the input mj £ signal. .
- Such a control actuator is used to give instructions to the plant or equipment (hereinafter referred to as the instruction side) in order to prevent the influence of the 3 ⁇ 4i signal on the human body or avoid the influence of noise, etc., depending on the application.
- the transformer that supplies power is an insulation transformer, or the signal sent from the indicating side to the blunt side, the plant side
- the control result signal sent from the transmitter to the instruction side is insulated using an insulation transformer, insulation amplifier, etc.
- Fig. 6 and Fig. 7 show examples of control actuator drive circuits that respond to these demands, and circuits that add soundness diagnosis to those circuits.
- the power supply circuit includes a power supply 10 0 2, a pulse generation circuit 1 0 3, an insulating transformer 1 0 4, a rectification circuit 1 0 5, a constant circuit 1 0 6, and the like.
- 10 07 is an insulation barrier that insulates the indicator side from the plant side.
- the actuator 13 0 is driven, for example, a 1.5 V drive voltage signal 1 3 1 is modulated into an AC signal by the modulation circuit 1 3 2, and the plant side After being amplified by the isolation transformer 1 3 3 which is a signal isolation means provided to insulate the indicator from the indicator side, it is demodulated by the demodulator circuit 1 3 4 supplied with power from the power circuit 1 0 1, Similarly, the signal conversion circuit 1 3 5 to which power is supplied from the power supply circuit 1 3 0 (hereinafter simply referred to as “actuator” or the like to be driven) is driven by 25 to 4 mA at 4 to 20 mA. May be referred to as “subject”).
- the circuit shown in FIG. 7 which can perform the health diagnosis of the control actuator 1 30 shown in FIG. 6 is a drive voltage signal for driving the actuator 1 3 0 to be driven.
- 1 3 1 is modulated into an AC signal by the modulation circuit 1 3 2, amplified by the isolation transformer 1 3 3, demodulated by the demodulation circuit 1 3 4, and driven by the signal conversion circuit 1 3 5
- the voltage signal and current signal corresponding to the signal 1 3 1 are used to drive the actuator 1 3 0 to be driven.
- the insulating transformer 10 4 the constant 1 £ circuit 1 0 6 is used to drive the actuator (driven body) 1 3 0 and to drive the signal conversion circuit, the modulation circuit, the demodulation circuit, and the like.
- insulation means such as an insulation amplifier that includes an insulation transformer 1 3 3 that insulates the signal between the plant side and the indicator side. Insulated interface was realized. Therefore, the conventional circuit requires an isolated power supply and an isolated amplifier, which greatly increases the cost.
- A. Signal transmission and power supply are realized by separate circuits.
- Patent Document 1 Japanese Patent Laid-Open No. 2 0 06-0 2 3 1 0 5
- Japanese Patent Application Laid-Open No. 2 0 0 4-1 9 8 3 0 2 a check pulse signal is connected to a signal line for detecting a disconnection via an impedance element.
- a disconnection detection circuit is illustrated in which a signal line disconnection is determined by comparing a signal obtained from the signal line and a check pulse signal.
- Patent Document 3 Japanese Patent Application Laid-Open No. Hei 8_0 5 7 08 discloses that the management of measurement records is facilitated to improve the work efficiency when performing circuit diagnosis.
- the measurement results of the characteristics of the electrical equipment written and stored in the non-volatile memory built into the electrical equipment to be diagnosed and the information related to the measurement or the electrical equipment Electrical circuit diagnosis method and method for diagnosing the state of electrical equipment by reading out measurement results of characteristics or information related to measurements and comparing them with the latest measurement results and information related to measurements obtained for electrical equipment An electrical circuit diagnostic device used in the method is shown.
- Patent Document 1 and Patent Document 2 are related to wire disconnection detection, a means for applying a pulse signal and a storage device for a reference current waveform are required.
- the electrical circuit diagnostic device requires a memory that stores the measurement results of electrical equipment characteristics and information related to the measurements, and requires a comparison means for circuit characteristics measurement and status diagnosis.
- this is not a solution for the problems as shown in A to C above. Disclosure of the invention
- a signal state diagnosis device for a driven body that can accurately transmit measurement results and perform circuit health diagnosis The issue is to provide.
- a signal state diagnosis apparatus for a driven body is configured such that a driven body driving voltage signal is input via an insulating means, and the driven body is driven by driving power corresponding to the input voltage.
- Driving and diagnosing the signal state of the driven body A signal state diagnostic device for a driven body,
- a rectangular wave pulse voltage switching voltage swinging from 0 V to positive or negative side
- alternating current waveform voltage swinging positive or negative
- alternating current waveform voltage swinging positive or negative
- alternating voltage generating means connected to a primary side
- the driven body connected to an insulating transformer as the insulating means connected to a secondary side
- an intermediate tap provided on the insulating transformer primary side
- Current measuring means for measuring a primary side current that flows when a current flows through a driven body connected to the secondary side
- an SJB circuit that corresponds to a driving state of the driven body with a current flowing through the intermediate tap.
- the input drive of the driven body is converted to a feedback signal to the i signal, and the measured voltage is measured after the feedback.
- the driven by the measurement result of the current measurement means and the voltage measurement means. body And performing signal condition diagnosis.
- the change in the primary current caused by the power sent from the primary side via the transformer being consumed by the driven body connected to the secondary side is measured and the current is received.
- a means for converting to a voltage corresponding to the driving state of the driving body and feeding back to the input driving voltage signal of the driven body is provided, and the voltage after the feedback is measured, and the measured current and voltage are used to measure the voltage.
- the signal condition diagnosis apparatus for a driven body has a power supply having a constant voltage circuit as in the conventional apparatus, or an insulating means such as an insulation transformer on both the power supply side and the signal transmission side.
- a control actuator such as a servo valve whose opening is controlled between fully open, fully closed and fully open to fully closed in accordance with 3 ⁇ 4 signal according to the present invention.
- FIG. 1 is a block diagram of a circuit for driving a control actuator such as a servo valve whose opening is controlled between fully open, fully closed and fully open to fully closed in accordance with 3 ⁇ 4 signal according to the present invention.
- FIG. 2 shows a specific circuit configuration for driving a control actuator such as the servo valve according to the present invention.
- FIG. 3 is a graph showing the core loss characteristics (power Z temperature) with temperature in the core material of the transformer used in the present invention.
- FIG. 4 is a diagram schematically showing a winding method of the primary coil and the secondary coil to the core of the transformer used in the present invention.
- Fig. 5 shows the signal at each temperature by using the coil winding method to the core of the transformer used in the present invention (using the transfer characteristic coefficient at 25 ° C, and the temperature from _40 to 85 ° C) (Linear error of transfer characteristics at each temperature when changing)
- Graph (A) showing experimental results of differences in transfer characteristics
- table (B) showing specifications of transformer used in the experiment .
- Fig. 6 shows the actuating actuator such as a solenoid valve that is fully open or fully closed when supplied with the 3 ⁇ 4J3E signal, or a servo valve that is controlled to open between fully open and fully closed in response to a given value. It is a block diagram of the conventional circuit for doing this.
- FIG. 7 shows an actuator such as a solenoid valve that is fully open or fully closed when a 3 ⁇ 4J £ signal is supplied, or a servo valve that is controlled to open between fully open and fully closed in response to a given voltage. It is a block diagram of a conventional circuit for driving the. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 and FIG. 2 show a signal state diagnosis apparatus for a control actuator as a driven body according to the present invention from fully open to fully corresponding to the input drive voltage signal described in FIG. 6 and FIG.
- Actuator for control such as a servo valve whose opening is controlled during closing
- Fig. 1 A block diagram (Fig. 1) applied to Fig. 2 and a detailed circuit example (Fig. 2).
- 2 is a pulse generating circuit
- 3 is an insulating transformer
- 4 is a rectifier circuit
- 6 is a signal of a current flowing through the primary side of the insulating transformer 3
- a broken line 7 is an insulating barrier.
- 25 and 26 are current measuring resistors and capacitors
- 40 is the control actuator as the driven body described above
- 41 is the drive voltage signal for driving the control actuator 40
- 4 2 Is the calorimeter
- 4 3 is the current signal of the measurement result
- 4 4 is the current signal 6, for example
- an amplifier that converts the primary current 6 corresponding to the secondary current of the isolation transformer 3 to a voltage corresponding to overcurrent, disconnection or short-circuit, 45 is a signal for diagnosing whether mffi corresponding to the drive voltage signal 41 is a force applied to the control actuator 40 or not.
- 4 6 is a control microcomputer that performs the functions of the adder 4 2 and amplifier 4 4 in the block diagram of FIG. 1, 4 7, 4 8 and 4 9 are FET transistors, 5 0 is an inductor, and 5 1 is a diode. is there.
- the pulse generation circuit 2 includes a drive voltage signal that serves as a command of a current to be applied to a control actuator 40 (hereinafter, simply referred to as “target”) that is a drive target. 41 is applied, and the pulse generation circuit 2 generates a pulse having an amplitude corresponding to the drive voltage signal 41.
- the pulse generated by this pulse generation circuit 2 is preferably a rectangular wave, but may be an alternating current consisting of a sine curve. Therefore, from the secondary side of the insulating transformer 3, the boosted voltage corresponding to the drive SJ signal 41 is output, rectified by the rectifier circuit 4, and the control actuator 40 is driven.
- the current corresponding to the power consumed by the control actuator 40 flows to the primary side of the isolation transformer 3, it is used as the current signal 6 by the amplifier 4 4 (see FIG. 2).
- the voltage is converted into the voltage as described in b, fed back to the drive voltage signal 41 by the adder 42, and the voltage of the feedback result is output as the applied voltage signal 45 of the isolation transformer 3.
- the signal condition diagnosis apparatus for the control actuator (target 40) consumes electric power when current flows through the control actuator 40, and the corresponding current is supplied to the primary side of the isolation transformer 3. Measure the flow and control The current flowing through or consumed by the motor 40 and the current value are estimated, and thereby the voltage generated in the control actuator 40 to be driven is measured. Also, from this current signal 6 and the voltage signal, if the circuit is short-circuited, the J £ signal is measured as a small value, and if it is disconnected, the signal is measured as a large value. It is possible to know whether or not the connection to the device is normal, and it is possible to recognize the state including the soundness diagnosis of the connected actuator without using other insulation means.
- FIG. 2 in which the block diagram of FIG. 1 is used as a specific circuit will be described.
- the control actuator 40 described above is connected to the full-wave rectifier circuit 4.
- the drive voltage signal 4 1 is input to the control microcomputer 4 6 that performs the functions of the adder 4 2 and the amplifier 4 4 in the block diagram of FIG. FET transistor 47, diode 51 and inductor 50 that output J £ corresponding to the signal £ 1 and the drive voltage signal 41 output from the FET transistor 47
- FET transistors 4 8 and 4 9 are applied to the both ends of the primary side of the insulation transformer 3 to alternately apply the voltage from the FET transistor 4 7. It is
- an intermediate tap is provided on the primary side of the insulation transformer 3, and the voltage is alternately printed on both ends of the wire on the primary side of the insulation transformer 3 by the FET transistors 48 and 49. Therefore, the current flowing through the circuit composed of the resistor 25 and the capacitor 26 without using the rectifier circuit is sent to the control microcomputer 46 as the current signal 6 and is output as the current signal 43.
- the control microcomputer 46 is provided on the primary side of the insulation transformer 3, and the voltage is alternately printed on both ends of the wire on the primary side of the insulation transformer 3 by the FET transistors 48 and 49. Therefore, the current flowing through the circuit composed of the resistor 25 and the capacitor 26 without using the rectifier circuit is sent to the control microcomputer 46 as the current signal 6 and is output as the current signal 43.
- the control microcomputer 46 receiving the drive voltage signal 41 receives a drive signal of the actuator 40 having a value corresponding to the drive voltage signal 41.
- the PWM signal is applied to the FET transistor 47 so that For this reason, the voltage corresponding to the drive voltage signal 41 is supplied from the FET transistor 47 to the FET transistors 48 and 49 to which the pulse from the pulse generation circuit 2 is supplied. For this reason, a voltage boosted corresponding to the drive voltage signal 41 is output to the secondary side of the isolation transformer 3, and a control actuator 40 not shown in FIG. Driven.
- the primary side current 6 flowing from the intermediate tap of the isolation transformer 3 via the resistor 25 and the capacitor 26 Is input to the control microcomputer 46, and the primary side current 6 is converted into the above-mentioned aJ and b, and added to the voltage measured via the inductor 50, and the voltage signal 45 and To do.
- the current signal 6 on the primary side of the isolation transformer 3 becomes a current corresponding to the power consumed by the control actuator 40 when the control actuator 40 is operating normally.
- the flffi signal 45 is the same as the drive voltage signal 41.
- the resistance value of the control actuator 40 can be found from the current signal 6 and the SJ £ signal 45, the voltage corresponding to the failure of the circuit can be set according to b. If the signal is measured as a small value and is disconnected, the signal is measured as a large value, and overcurrent to the control actuator 40, circuit disconnection, short circuit, etc. are detected as current signal 6 and voltage signal 4 5 Can be estimated by looking at
- the circuit health diagnosis device detects the current flowing from the signal conversion circuit 1 3 5 to the actuator 1 3 0 and the corresponding isolation transformer 1 3 8 a, 1 3 8 b Can be input to voltage Signal conversion circuit (current detection) 136a, which converts the signal (voltage detection) 136b, Modulation circuit 137a, 137b, insulation that modulates the voltage converted to current and voltage in the signal conversion circuit 136a, 136b Demodulator circuit that demodulates ⁇ transformed by transformers 138a and 138b into a current signal. Simple circuit without providing an isolation amplifier consisting of 139a, 139b, etc., and more than the conventional circuit shown in FIG. Can also be configured at low cost.
- the signal condition diagnosis of the control actuator which is the driven body
- the transformer that is, the power consumption caused by the operation of the driven body is generated on the primary side of the transformer.
- the core loss characteristics (power / temperature) at temperature for example, TD K Co., Ltd .: t3 ⁇ 4 PC 44, PC47, etc.
- the transformer was constructed using a core material called PC95 made by TDK Co., which has relatively little fluctuation in core loss over a wide temperature range.
- the horizontal axis represents temperature (° C)
- the vertical axis represents power (P cv unit: kW / cm 3 ).
- the inventor of the present application provides an intermediate tap at a substantially middle portion of the primary side of the transformer, connects the current measuring means to the intermediate tap, and the power supplied to the secondary side is Changes in the primary current caused by consumption were measured, but the primary coil and the secondary coil were measured with the primary coil in the middle as shown in the schematic diagram shown in Fig. 4.
- the first half 1 1 and the second half 1 3 are centered on the inter-tap, and the secondary coil 1 2 is sandwiched between the first half 1 1 and the second half 1 3 coils in the core 10 formed of the PC 95 described above. It was found that good signal transfer characteristics can be obtained by winding.
- the graph in Fig. 5 (A) shows the experimental results.
- This graph uses a core material called PC 95 of TDK Co., Ltd. as described above.
- the primary coil is centered on the middle tap and the first half 1 1 and the second half 1 3 Dividing into two, using an isolation transformer wound around the secondary coil 1 2 with the coils of the first half 1 1 and the second half 1 3 to form a distributor isolation amplifier, the linearity and temperature drift state It is measured.
- FIG. 5 (B) The specifications of the insulation transformer used for this measurement are shown in the table shown in Fig. 5 (B), and the measurement is 10 ppm /. This was carried out using C precision resistors.
- the horizontal axis is the output current value of the distributor isolation amplifier, the unit is mA, and the vertical axis is the full-scale error 0 / o (4 to 2 O mA is 100%. This is a plot of the linear error of the transfer characteristic at each temperature when the temperature is changed from 40 to 85 ° C.
- TDK Corporation For example, fc PC 4 4 and PC 4 7 core materials are used, and the primary coil is wound continuously in the first half 1 1 and the second half 1 3.
- the linearity of soil is 0.5% or less, and it is about ⁇ 0.25% in an environment of 0 to 60 ° C.
- linearity is within ⁇ 0.01% or less, 0.1% in an environment of 0 to 85 ° C, and 1400 to 85 ° C. In the C environment, +0.15% /-0.1%, it can be seen that both linearity and temperature drift are good.
- the temperature characteristics can be improved and further accuracy can be improved. In this way, the signal condition diagnosis of the control actuator can be performed with high accuracy with a simple circuit configuration.
- the signal condition diagnosis of the control actuator which has been conventionally delayed due to the increase in cost, can be performed with a simple configuration without causing an increase in the manufacturing cost due to an increase in the number of parts or a complicated circuit configuration. It can be implemented and can be easily applied to circuits where reliability is desired.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Testing And Monitoring For Control Systems (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09700715T ES2713101T3 (es) | 2008-01-11 | 2009-01-09 | Dispositivo de diagnóstico de estado de señal para controlar accionador como miembro accionado |
US12/674,301 US8253366B2 (en) | 2008-01-11 | 2009-01-09 | Signal status diagnosing device for control actuator as driven object |
EP09700715.7A EP2241900B1 (en) | 2008-01-11 | 2009-01-09 | Signal status diagnosing device for controlling actuator as driven member |
CN2009801000311A CN101765780B (zh) | 2008-01-11 | 2009-01-09 | 作为被驱动体的控制用促动器的信号状态诊断装置 |
PL09700715T PL2241900T3 (pl) | 2008-01-11 | 2009-01-09 | Urządzenie do diagnostyki statusu sygnału przesyłanego do urządzenia uruchamiającego sterującego jako napędzanego członu |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-005075 | 2008-01-11 | ||
JP2008005075A JP2009168530A (ja) | 2008-01-11 | 2008-01-11 | 出力対象の信号状態診断装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009088101A1 true WO2009088101A1 (ja) | 2009-07-16 |
Family
ID=40853209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/050599 WO2009088101A1 (ja) | 2008-01-11 | 2009-01-09 | 被駆動体としての制御用アクチュエータの信号状態診断装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8253366B2 (ja) |
EP (1) | EP2241900B1 (ja) |
JP (1) | JP2009168530A (ja) |
CN (1) | CN101765780B (ja) |
ES (1) | ES2713101T3 (ja) |
PL (1) | PL2241900T3 (ja) |
WO (1) | WO2009088101A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009168529A (ja) * | 2008-01-11 | 2009-07-30 | Mitsubishi Heavy Ind Ltd | 計測、駆動、制御の手段における信号状態診断方法と装置及び該装置に用いられるトランス |
DE102011089996B4 (de) * | 2011-12-27 | 2018-02-01 | Continental Automotive Gmbh | Bordnetzsystem und Verfahren zum Betreiben eines Bordnetzsystems |
JP5851832B2 (ja) | 2011-12-28 | 2016-02-03 | 三菱日立パワーシステムズ株式会社 | 電力供給装置及び電力供給切替方法 |
JP5800427B2 (ja) | 2011-12-28 | 2015-10-28 | 三菱日立パワーシステムズ株式会社 | 電力供給装置及び電力供給切替方法 |
US11050378B2 (en) * | 2018-07-12 | 2021-06-29 | Parker-Hannifin Corporation | Induction motor health monitoring method |
KR102184669B1 (ko) * | 2018-11-05 | 2020-12-01 | 한국로봇융합연구원 | 신호 배선의 다중화 및 단선감지에 의한 다중 배선 간 전환 제어방법 및 시스템 |
DE102020207234A1 (de) | 2020-06-09 | 2021-12-09 | Volkswagen Aktiengesellschaft | Überwachungsanordnung und ein Verfahren zur Überwachung eines Aktors |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH085708A (ja) | 1994-06-21 | 1996-01-12 | Mitsubishi Electric Corp | 電気回路診断方法およびその方法に使用する電気回路診断装置 |
JP3083460U (ja) * | 2000-07-25 | 2002-01-31 | 台達電子工業股▲分▼有限公司 | 回線異常稼働の検出装置 |
JP2002176788A (ja) * | 2000-09-28 | 2002-06-21 | Canon Inc | 4相駆動振動型アクチュエータの駆動回路 |
JP2003259545A (ja) * | 2002-03-04 | 2003-09-12 | Aisan Ind Co Ltd | アクチュエータの断線検出装置 |
JP2004198302A (ja) | 2002-12-19 | 2004-07-15 | Sysmex Corp | 断線検知回路 |
JP2006023105A (ja) | 2004-07-06 | 2006-01-26 | Hitachi Cable Ltd | 電線の断線検出方法 |
JP2007209082A (ja) * | 2006-01-31 | 2007-08-16 | Murata Mfg Co Ltd | 双方向パルス信号伝送回路および絶縁型スイッチング電源装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3422352A (en) * | 1965-09-14 | 1969-01-14 | Nasa | Apparatus for measuring current flow |
US5307006A (en) * | 1992-09-09 | 1994-04-26 | The United States Of America As Represented By The United States Department Of Energy | Optical voltage reference |
CN2150672Y (zh) * | 1993-02-01 | 1993-12-22 | 王刚 | 逆变式集成一体化电源器件 |
US5519300A (en) * | 1993-06-29 | 1996-05-21 | Liberty Technologies, Inc. | Method and apparatus for analysis of polyphase electrical motor systems |
JP3083460B2 (ja) * | 1994-12-01 | 2000-09-04 | 松下電器産業株式会社 | 複合型チューナ |
US5705989A (en) * | 1996-07-19 | 1998-01-06 | Veris Industries, Inc. | Current status circuit for a variable frequency motor |
US6064172A (en) * | 1997-02-11 | 2000-05-16 | Power Superconductor Applications Corporation | Method and apparatus for detection, classification and reduction of internal electrical faults in alternating current propulsion machinery using synchronous detection scheme |
DE69838595T2 (de) * | 1997-12-12 | 2008-07-24 | Canon K.K. | Antriebsvorrichtung für einen Vibrationsaktor |
CN2399759Y (zh) * | 1999-09-06 | 2000-10-04 | 北京汇众实业总公司 | 无触点型交流稳压器 |
US6724607B2 (en) * | 2000-09-28 | 2004-04-20 | Canon Kabushiki Kaisha | Driving apparatus of vibration type actuator |
CN2520609Y (zh) * | 2001-12-31 | 2002-11-13 | 樊印海 | 高频高压逆变脉冲电源 |
US7265499B2 (en) * | 2003-12-16 | 2007-09-04 | Microsemi Corporation | Current-mode direct-drive inverter |
DE502005004633D1 (en) * | 2004-02-24 | 2008-08-21 | Lenze Drive Systems Gmbh | Nmaschine |
JP2006345633A (ja) * | 2005-06-08 | 2006-12-21 | Sony Corp | スイッチング電源回路 |
-
2008
- 2008-01-11 JP JP2008005075A patent/JP2009168530A/ja not_active Withdrawn
-
2009
- 2009-01-09 PL PL09700715T patent/PL2241900T3/pl unknown
- 2009-01-09 EP EP09700715.7A patent/EP2241900B1/en active Active
- 2009-01-09 US US12/674,301 patent/US8253366B2/en active Active
- 2009-01-09 CN CN2009801000311A patent/CN101765780B/zh active Active
- 2009-01-09 WO PCT/JP2009/050599 patent/WO2009088101A1/ja active Application Filing
- 2009-01-09 ES ES09700715T patent/ES2713101T3/es active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH085708A (ja) | 1994-06-21 | 1996-01-12 | Mitsubishi Electric Corp | 電気回路診断方法およびその方法に使用する電気回路診断装置 |
JP3083460U (ja) * | 2000-07-25 | 2002-01-31 | 台達電子工業股▲分▼有限公司 | 回線異常稼働の検出装置 |
JP2002176788A (ja) * | 2000-09-28 | 2002-06-21 | Canon Inc | 4相駆動振動型アクチュエータの駆動回路 |
JP2003259545A (ja) * | 2002-03-04 | 2003-09-12 | Aisan Ind Co Ltd | アクチュエータの断線検出装置 |
JP2004198302A (ja) | 2002-12-19 | 2004-07-15 | Sysmex Corp | 断線検知回路 |
JP2006023105A (ja) | 2004-07-06 | 2006-01-26 | Hitachi Cable Ltd | 電線の断線検出方法 |
JP2007209082A (ja) * | 2006-01-31 | 2007-08-16 | Murata Mfg Co Ltd | 双方向パルス信号伝送回路および絶縁型スイッチング電源装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2241900A4 |
Also Published As
Publication number | Publication date |
---|---|
EP2241900A1 (en) | 2010-10-20 |
PL2241900T3 (pl) | 2019-04-30 |
CN101765780B (zh) | 2012-10-03 |
EP2241900A4 (en) | 2014-03-05 |
US20110121771A1 (en) | 2011-05-26 |
ES2713101T3 (es) | 2019-05-17 |
EP2241900B1 (en) | 2018-12-05 |
JP2009168530A (ja) | 2009-07-30 |
CN101765780A (zh) | 2010-06-30 |
US8253366B2 (en) | 2012-08-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2009088101A1 (ja) | 被駆動体としての制御用アクチュエータの信号状態診断装置 | |
US8405401B2 (en) | Operation status diagnosing device for external control means | |
WO2009088098A1 (ja) | 計測手段または制御手段による計測、制御における信号状態の診断装置 | |
US8803504B2 (en) | Method and device for diagnosing signal status in measurement, drive, or control, and transformer used in the device | |
JP6410805B2 (ja) | 駆動信号診断装置を備えた磁気フローメータ | |
WO2009088097A1 (ja) | 絶縁手段を介して伝達されるon/off信号により駆動電力を供給されて動作する外部制御手段の信号状態診断装置 | |
KR101750644B1 (ko) | 계측 장치 및 계측 방법 | |
CN104488183A (zh) | 用于测量软启动器电流的系统及其方法 | |
US20140346882A1 (en) | Power supply device and power supply switching method | |
CN100403035C (zh) | 电路系统和一种电路的检验方法 | |
US9475099B2 (en) | Ultrasonic cleaning system with transducer failure indicator | |
CN214100968U (zh) | 一种罩式馈线终端和高压开关 | |
JP4993601B2 (ja) | トランスの異常検出方法及びこれに用いる充電器 | |
JP5423984B2 (ja) | 信号伝送装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980100031.1 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09700715 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1147/DELNP/2010 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009700715 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12674301 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |