• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    SHAFT ANGLE CONVERTER OF A CODE, containing a sine-sinus rotary transformer, the output of which is connected via a serially connected filter and amplifier to one input of a synchronous detector, the other input is connected to a reference voltage source, a voltage conversion unit, pulse frequency, a counter, a display unit , reversible counter, the first and second drivers of PWM signaling, the outputs of which are connected to the matching unit, characterized in that, in order to improve the accuracy, it includes a high-frequency filter, a voltage module formatter, a voltage sign formatter, first and second switches, a switch control unit, a control unit and a voltage control unit, the signal inputs of which are connected to the outputs of the matching unit, and the outputs are connected to the sinus-cosine inputs rotary transformer, the output of the synchronous detector is connected via a high-frequency filter to a voltage source driver and to a voltage module and a unit connected in series converting the voltage to the pulse frequency, the output of which and the output of the voltage symbol generator CO are connected via the first switch to the signal and control inputs of the reversible counter, the output of which is connected to one signal input of the second switch; the output of the second switch is connected to the inputs of the first and second PWM drivers -signals, the output of counter 4 is connected to the control unit input, cx the control unit outputs are connected to the SP by another signal input of the second switch, indication unit and the counter, I.1. INPUTS of the control unit of the switches are connected to the control inputs of the first and second switches.
    公开号:SU1148574A3
    申请号:SU813308431
    申请日:1981-07-14
    公开日:1985-03-30
    发明作者:Сакано Тетсуроу
    申请人:Фудзицу Фанук Лимитед (Фирма)；
    IPC主号:
    专利说明:

    1 The invention relates to the field of automation and computer technology and can be used to connect analog information sources with a digital computing device. Converters of shaft rotation angle into a code are known, containing successively connected impulse generator, frequency divider and power amplifier, the output of which is connected to the primary winding of a sine-cosine rotating transformer (SCWT), the secondary windings of SCWT are connected to a block of phase-shifting elements through the switch-torus, the output of which through a series-connected filter and comparator is connected to the first inputs of the first and second elements I, the first trigger whose outputs are connected to the second inputs of the first and second And, and the outputs of the first n of the second elements are connected to the setup inputs of the second trigger, the outputs of which are connected to the control inputs of the switch, the output of the pulse recharger is connected to one input of the third element I, the other input is connected to one output of the second trigger, and the output is connected to the counter, one output of the counter is connected to the setup input of the first trigger, and the other to one input of the third trigger, the output of which is connected to the third input of the second element And, and the output of the first element And connected yuchen to other inputs of the third trigger and counter 1j. A disadvantage of the known converter is the low accuracy caused by the errors of the SCRT. The shaft angle converter is converted into a code containing a sine-cosine angle sensor (SKDU), the outputs of which are connected to the first inputs of multipliers, the outputs of multipliers are connected to an adder, the outputs of which are connected to the reverse inputs via a voltage modulator driver and a voltage sign driver the counter, the outputs of the reversible counter bits through the functional code conversion unit are connected to the second inputs of the multiplication units 2. The disadvantage of such converters is low accuracy caused by SKDU errors. 74. 1 The closest technical solution to the present invention is a shaft rotation angle converter into a code containing a sine-cosine rotary transformer, the output of which is connected to the source of the reference voltage through the last positively connected filter and amplifier. voltage conversion unit to pulse frequency, counter, display unit, reversible counter, first and second drivers of HMM signals whose outputs are connected to an agreement The output unit of the matching unit is connected to the inputs of the SCRT, the outputs of the synchronous detector are connected to the counter and reversible counter, the outputs of which are connected to the first and second PWM signals, and the outputs of the counter are connected to the outputs of the synchronous detector. display unit H. A disadvantage of the known converter is its low accuracy. The purpose of the invention is to increase the accuracy of the converter. The goal is achieved by the fact that in the converter of the angle of rotation of the shaft into a code containing a SCWT, the code of which is connected through a series-connected filter and amplifier. To one input of a synchronous detector, the other input of which is connected to a source of reference voltage, the block is converted to a voltage following pulse frequency, a counter, a display unit, a reversible counter, the first and second drivers of PWM signals whose outputs are connected to a matching unit, are entered filter, shaper module, voltage sign shaper, first and second switches, switch control unit, control unit and voltage control unit, the signal inputs of which are Ina with the outputs of the matching unit, and the outputs are connected to the inputs of the SSCT, the output of the synchronous detector is connected via a high-frequency filter to a voltage sign shaper and to series-connected shaper voltage module and voltage conversion unit, which output and output The voltage sign former is connected via the first switch to the signal and control inputs of a reversible counter, during which the output is connected to one signal input of the second switch. The second switch is connected to the inputs of the first and second drivers of PWM signals, the output of the counter is connected to the input of the control unit, the outputs of the control unit are connected to another signal input of the second mutator, the display unit and the counter, the outputs of the control unit of the switches are connected to the control inputs of the first and second switches. The drawing shows the block diagram of the Converter. The converter contains a sinus-sinus rotary transformer 1, the output of which through serially connected filter 2 and amplifier 3 is connected to one input of the synchronous detector 4, the other input of which is connected to the source 5 of the reference voltage. The output of the synchronous detector 4 through a high-pass filter 6 is connected to a voltage sign shaper 7 and to a voltage module 8 connected in series 8 and a voltage conversion unit 9 to a pulse frequency, the output of which and the output of the voltage sign generator 7 are connected to the control input of the reversible counter 11, the output of which is connected to one signal input of the second switch 12, the output of switch 12 is connected to the inputs of the formers 13 and 14 of the PWM signal The outputs of which are connected to the matching unit 15, the outputs of the unit 15 through the voltage regulating unit 16 are connected to the inputs of the SSCT 1, the output of the unit 9 is connected to the input of the counter 17, the output of which is connected to the input of the control unit 18, the outputs of the unit 18 are connected to another signal the input of the switch 12, the display unit 19 and the counter 17, the outputs of the switch control unit 20 are connected to control inputs of the switches 10 and 12. The converter operates as follows. In the reversible counter 11, a code N is formed, equivalent to the angle c "i of rotation of the rotor with the ACS 1 associated with the object. In the driver 13 and 14, PWM signals are formed, the decomposition of which in the Fourier series can be represented as t d-, d 2 2 - co5 (2k.i) (lKM) wt, And k si {Z It T I C. where UQ is the amplitude of the signals; CO is the circular frequency of the signals; fc --- -aN- PWM pulse widths from signals; a - coefficient of proportionality. In SCRT 1, the signals U, and Ug are modulated as a function of the sine and cosine of the angle of rotation OG and summed on its rotor winding. .At the output of SCPT 1, a voltage is generated and, and, "51PY - ISCOBL. If the transmission coefficients of the sine and cosine windings of SCPT 1 are equal, the output voltage of the filter 2 separating the first harmonic () is equal to V A sin (c) t (i) 5tn (OS-Wcj), de A, (f - permanent transmissions of filter 2. At the output of filter 6 there is a flux component of the signal U with the appropriate sign. Block 9 generates pulses with a frequency proportional to the constant voltage Ux , selected by my shaper 8. These pulses appear through the switch 10 to the counting input of the reversible counter 11, the counting of which is determined by the output signal of the formative sign 7. After compensation, the modal voltages U and U are equal, there are no pulses at the output of block 9. To eliminate the effect of inequality in the transmission coefficients of the SCE of the coil, the conversion accuracy results in the input scaling ACS voltages 1.
    权利要求:
    Claims (1)
    [1]
    A SHAFT TURN ANGLE CONVERTER TO A CODE containing a sinus cosine rotating transformer, the output of which is connected through a series-connected filter and amplifier to one input of a synchronous detector, the other input of which is connected to a reference voltage source, a voltage-to-pulse conversion unit, a counter, an indication unit, a reversible counter, first and second PWM signal generators, the outputs of which are connected to the matching unit, characterized in that, in order to increase accuracy, High-frequency filter, voltage module driver, for! a voltage sign terminator, first 'and second switches, a switch control unit, a control unit and a voltage control unit, the signal inputs of which are connected to the outputs of the matching unit, and the outputs are connected to the inputs of a sinusosync rotary transformer, the output of the synchronous detector through a high-pass filter is connected to the voltage sign generator and to the voltage modulator shaper and the voltage conversion to pulse repetition unit, the output of which g and the output are connected in series d of the voltage sign driver through the first switch are connected to the signal and control inputs of the reverse counter, the output of which is connected to one signal input of the second switch, the output of the second switch is connected to the inputs of the first and second PWM signal drivers, the output of the meter is connected to the input of the control unit, block outputs control are connected to another signal input of the second switch, the display unit and the counter, the outputs of the control unit of the switches are connected to the control inputs of the first and second on switches.
    SU ", 1148574
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    同族专利:
    公开号 | 公开日
    JPS5720814A|1982-02-03|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3646547A|1969-07-02|1972-02-29|Albert J Beni|Analog-to-digital converter for positional coordinates|
    US3990062A|1975-02-03|1976-11-02|Fmc Corporation|Resolver to digital converter|
    US4134106A|1976-12-16|1979-01-09|The Bendix Corporation|Absolute resolver angle to digital converter circuit|
    FR2440574B1|1978-10-05|1983-03-04|Artus|
    DE2847779C3|1978-11-03|1982-01-14|Siemens AG, 1000 Berlin und 8000 München|Device for position detection in numerically controlled machine tools|
    US4282468A|1979-04-16|1981-08-04|Hyper-Loop, Inc.|High speed position feedback and comparator system|DE3201850C2|1982-01-22|1984-05-17|Vereinigte Glaswerke Gmbh, 5100 Aachen|Numerically controlled model cutting machine for glass panes and their application|
    US4472669A|1982-12-23|1984-09-18|General Electric Company|Compensated resolver feedback|
    US4518905A|1983-05-16|1985-05-21|Rockwell International Corporation|Current control of synchro power amplifiers|
    US4698486A|1984-02-28|1987-10-06|Tamarack Scientific Co., Inc.|Method of heating semiconductor wafers in order to achieve annealing, silicide formation, reflow of glass passivation layers, etc.|
    US4890047A|1986-06-25|1989-12-26|Harris Corporation|Digital pulse width modulation control of brushless DC motors|
    US4864284A|1987-12-08|1989-09-05|Caterpillar Inc.|Apparatus for sensing a failed position and velocity sensor|
    US4978900A|1989-02-27|1990-12-18|Louis Skawinski|DC sine cosine servo system|
    US5034743A|1989-08-07|1991-07-23|Flight Visions Incorporated|AC encoded signal to digital converter|
    US5455498A|1990-05-09|1995-10-03|Omron Corporation|Angle of rotation detector|
    US5134404A|1991-04-01|1992-07-28|Aerotech, Inc.|Quadrature error correction|
    US5332955A|1991-07-24|1994-07-26|Carco Electronics|Position sensing apparatus with continuous update|
    US5198739A|1992-01-30|1993-03-30|Siemens Industrial Automation, Inc.|Software controllable circuit for resolver excitation switching in a motion control system|
    US5204603A|1992-01-30|1993-04-20|Siemens Industrial Automation, Inc.|Open circuit detection for a pulsed resolver position sensing system|
    US5200683A|1992-01-30|1993-04-06|Siemens Industrial Automation, Inc.|Method for optimizing sampling rates for position tracking for motion control systems|
    US5319294A|1992-05-28|1994-06-07|Matsushita Electric Industrial Co., Ltd.|Apparatus for automatically adjusting offset correction values for current detectors|
    JP3414893B2|1995-07-12|2003-06-09|
    US6082212A|1997-07-25|2000-07-04|Crown Equipment Corporation|Multi-function control handle|
    JP3758563B2|2001-12-04|2006-03-22|豊田工機株式会社|Position detector correction method and electric power steering apparatus|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP9597680A|JPS5720814A|1980-07-14|1980-07-14|Method and device for error correcting method of position detecting circuit|
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