CN206363185U - Signals of rotating transformer process circuit - Google Patents
Signals of rotating transformer process circuit Download PDFInfo
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- CN206363185U CN206363185U CN201621355007.6U CN201621355007U CN206363185U CN 206363185 U CN206363185 U CN 206363185U CN 201621355007 U CN201621355007 U CN 201621355007U CN 206363185 U CN206363185 U CN 206363185U
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Abstract
The utility model proposes a kind of signals of rotating transformer process circuit, it is to be used to realize magnetoresistance transformer excitation and angular speed, Angle Position Data Detection and the access of optional photoelectric encoder angular velocity signal, the problem of mainly solving, first is the undistorted excitation of rotary transformer excitation signal, and second is angular speed and the conversion of Angle Position authentic data under harsh operating mode；3rd is to use high-speed data isolation transmission to adapt to the anti-interference transmission of real time data, and this modular circuit is easy to use in automobile driving system, industry and the EM equipment module application of domestic mains system using automotive grade embedded design.
Description
Technical field
The utility model is related to transformer control circuit technical field, more particularly to a kind of signals of rotating transformer processing electricity
Road.
Background technology
As angular position sensing element, conventional having is so several：Optical encoder, magnetic encoder and rotation transformation
Device.Due to making the reason with precision, magnetic encoder is without other two kinds popularizations.The output signal of optical encoder is arteries and veins
Punching, due to being natural digital quantity, data processing is more convenient, thus has obtained good application.The rotary transformer of early stage,
Because signal processing circuit is more complicated, the reason for price is somewhat expensive, using being restricted.Because rotary transformer has nothing
Analogous reliability, and with sufficiently high precision, have not replaceable status in many occasions, particularly in military affairs
And in terms of space flight, aviation, navigation.
With the development of electronics industry, the raising of electronic component integration degree, the price of component is greatly reduced；Separately
Outside, the progress of signal processing technology, the signal processing circuit of rotary transformer becomes simple, reliable, and price is also greatly reduced.And
And, the signal transacting of software decoding is occurred in that again so that signal processing problems become more flexibly, conveniently.So, transformation is rotated
The application of device has obtained bigger development, and its advantage has obtained bigger embodiment.Compared with optical encoder, rotary transformer has
Such some clear advantage：1. unrivaled reliability, the ability of extraordinary anti-adverse environment condition；2. it can run
At higher rotational speeds.(under output 12bit signal, it is allowed to which the rotating speed of motor is up to 60,000rpm.And optical encoding
Device, because the frequency response of photoelectric device is general in below 200kHz, in 12bit, speed can only achieve 3,000rpm)；3. facilitate
Absolute value signal data output.
The application of rotary transformer, have developed rapidly in the recent period.Except it is traditional, require reliability high military, Aero-Space
Outside field, also it is widely used in industry, traffic and civil area.Especially it is to be mentioned that, in these years,
With the raising of industrial automation level, with the requirement more and more higher of energy-saving and emission-reduction, efficiency high, the permanent magnet AC of obvious energy conservation
The application of motor, more and more extensively.And the position sensor of permanent magnet AC motor, it is originally in the majority with optical encoder,
But in these years, but promptly replaced by rotary transformer.Can for several obvious examples, in household electrical appliances, whether refrigerator,
Air-conditioning or washing machine, are developed to variable-frequency and variable-speed at present, use the permanent magnet AC motor of sine wave control.Mesh
Qian Ge states are all in the electric automobile paid much attention to, and position used, velocity sensor are all rotary transformers in electric automobile.
For example, the position and speed sensing of the position sensing of drive motor and generator, electric boosted direction coil motor, gas valve angle
Degree measurement, vacuum chamber conveyer angle position measurement etc., are all to use rotary transformer.Applied to plastic compression system, weaving
It is also with rotation in the servo-drive system applied on critical component servomotor in system, metallurgical system and other field
Transformer is used as speed sensor.The application of rotary transformer has become a kind of trend.
However, can make in electromagnetism, temperature, the harsh drive environment of vibrations long-term, reliable, the stable operation of circuit for
System designer is not an easy to reach thing, conventional double operational excitation driving work different in actual application
Run wave distortion under condition to happen occasionally, the drift of cos, sin signal level window declines detection data precision, causes when serious
System malfunction and occur accident, particularly with the application of new-energy automobile power drive system, it is even more not allow to neglect that it, which shows consequence,
Revolve depending on, this modular circuit to become digital quantizer, double operational bonus point and stand excitation signal driving, demarcation using AD2S1210BSTE and encourage
The magnetoelectricity pressure individually measure modularized design such as conversion, insulating power supply supply, isolation signals transmission, through actual long-time complex working condition
Under stable operation be shown to be a kind of successful circuit design.
Utility model content
The purpose of this utility model is intended at least solve one of described technological deficiency.
Therefore, a purpose of the present utility model is to propose a kind of signals of rotating transformer process circuit, its pair is utilized
Amplifier adds the excitation signal of discrete device to drive to solve excitation signal distortion；Excitation driving power supply is used individually to convert with optimal
Adapt to the rotary transformer level detection window of different no-load voltage ratios；The integrated rotations of AD2S1210BSTE are used to become digital quantizer to solve
The performance drift such as the uniformity and temperature of batch products, aging；Magnetic isolation high speed real-Time Signal Transfer integrated device is used to solve
Certainly interfered with each other between element circuit and data high speed transmitting.
To achieve these goals, the embodiment of the utility model one side provides a kind of signals of rotating transformer processing electricity
Road, including carrier wave excitation power supply module, carrier wave coil excited modes block, rotation change digital converter module, isolation signals interface circuit
Module, rotary transformer module；The rotation becomes digital converter module and connects carrier wave coil excited modes block, rotary transformer respectively
Module, isolation signals interface module；The carrier wave coil excited modes block connects carrier wave excitation power supply module；
The carrier wave coil excited modes block includes one-level amplifying unit, complementary push-pull unit；The one-level amplifying unit bag
Include the first amplifier, the second amplifier；The normal phase input end of first amplifier and the second amplifier is all connected with reference voltage；
Negative-phase input connects the sinusoidal rotation change excitation signal of positive and the negative sine rotation change revolved and become that digital converter module is sent respectively
Excitation signal；The complementary push-pull unit connects the output end of the first amplifier and the output end of the second amplifier respectively；It is described
Complementary push-pull unit includes two opposite polarity triodes.
It is preferred that, the complementary push-pull unit includes NPN type triode and PNP type triode；Also include and the NPN type
The second diode that transistor base is connected and the first diode being connected with the base stage of PNP type triode；Described first
The negative electrode of diode and the second diode anode connect the output end of the first amplifier jointly.
It is preferred that, the carrier wave excitation power supply module connects DC/DC insulating power supplies.
It is preferred that, the isolation signals circuit module connects photoelectric encoder by pulse passage.
It is preferred that, the rotation, which becomes digital converter module, includes main control chip, clock circuit, communication interface circuit；It is described
Main control chip is AD2S1210BSTE from chip model；First clock pins of the main control chip connect one end of crystal oscillator；
The other end connection second clock pin of the crystal oscillator；The crystal oscillator two ends are also respectively connected with one end of the first electric capacity, the second electricity
One end of appearance；The other end, the other end of the second electric capacity of first electric capacity are grounded respectively.
It is preferred that, described crystal oscillator is integrated active crystal oscillator.
According to the signals of rotating transformer process circuit of the offer of the utility model embodiment compared to prior art at least
With advantages below：
1st, complementary push-pull discrete transistor electric current is added to drive by double operational complementation predrive in carrier wave coil excited modes block
To realize good inductive load sinusoidal signal fidelity, the excitation signal for adding discrete device using its double operational is driven to solve to encourage
Magnetic signal distortion；
2nd, using excitation driving power supply, individually conversion detects window with the rotary transformer level of the different no-load voltage ratios of optimal adaptation；
3rd, the integrated rotations of AD2S1210BSTE are used to become digital quantizer to solve uniformity and temperature, the aging of batch products
Deng performance drift；Magnetic isolation high speed real-Time Signal Transfer integrated device is used to solve to interfere with each other between element circuit and data
High speed transmitting.
The additional aspect of the utility model and advantage will be set forth in part in the description, partly by from following description
In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will from description of the accompanying drawings below to embodiment is combined
Become substantially and be readily appreciated that, wherein：
The attachment structure block diagram for the signals of rotating transformer process circuit that Fig. 1 provides for the utility model embodiment；
The circuit theory diagrams for the carrier wave coil excited modes block that Fig. 2 provides for the utility model embodiment；
Fig. 3 becomes digital converter module for the rotation that the utility model embodiment is provided and obtains circuit theory diagrams；
The isolation signals interface module circuit theory diagrams that Fig. 4 provides for the utility model embodiment；
The carrier wave excitation power supply modular circuit schematic diagram that Fig. 5 provides for the utility model embodiment.
The workflow diagram for the signals of rotating transformer process circuit that Fig. 6 provides for the utility model embodiment.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
As shown in figure 1, a kind of signals of rotating transformer process circuit of the offer of the utility model embodiment, including carrier wave
Excitation power supply module 1, carrier wave coil excited modes block 2, rotation become digital converter module 3, isolation signals interface module 4, rotation
Turn transformer module 5；Rotation become digital converter module 3 connect respectively carrier wave coil excited modes block 2, rotary transformer module 5, every
From signal interface circuit module 4；The connection carrier wave excitation power supply of carrier wave coil excited modes block 2 module 1.
As shown in Fig. 2 carrier wave coil excited modes block 2 includes one-level amplifying unit, complementary push-pull unit；One-level amplifying unit
Including the first amplifier, the second amplifier；The normal phase input end of first amplifier and the second amplifier is all connected with reference voltage；It is negative
Phase input connect respectively rotation become digital converter module send positive sine rotation become excitation signal and negative sine rotation change encourage
Magnetic signal；Complementary push-pull unit connects the output end of the first amplifier and the output end of the second amplifier respectively；Complementary push-pull list
Member includes two opposite polarity triodes.
Complementary push-pull unit includes NPN type triode Q2 and PNP type triode Q1；Also include and NPN type triode Q2 bases
The second diode D2 that pole is connected and the first diode D1 being connected with PNP type triode Q1 base stage；First diode
D1 negative electrode and the second diode D2 anodes connect the output end of the first amplifier jointly.
As shown in figure 3, rotation, which becomes digital converter module 3, includes main control chip U5, clock circuit, communication interface circuit；It is main
Control chip U5 and connect clock circuit by clock pins, main control chip U5 is AD2S1210BSTE from chip model；Provided with when
Clock pin XTAL and communication pin SCLK/SDI/SDO etc., pass through the pin connection communication interface circuit that communicates；Main control chip U5's
First clock pins XTAL1 connection crystal oscillators Y1 one end；Crystal oscillator Y1 other end connection second clock pin XTAL2；Crystal oscillator Y1
Two ends are also respectively connected with the first electric capacity C1 one end, the second electric capacity C2 one end；The first electric capacity C1 other end, the second electric capacity C2
The other end be grounded respectively.Further, crystal oscillator is integrated active crystal oscillator.
As shown in figure 4, isolation signals interface module circuit theory diagrams；Isolation signals circuit module 4 is logical by pulse
Road connects photoelectric encoder 6.Choose isolation signals interface chip ADUM1410 integrated using Magnetic isolation high speed real-Time Signal Transfer
Device with solve to interfere with each other between element circuit and data high speed transmitting.
As shown in figure 5, carrier wave excitation power supply modular circuit；The connection DC/DC of carrier wave excitation power supply module 1 insulating power supplies 7.Adopt
With excitation driving power supply, individually conversion detects window with the rotary transformer level of the different no-load voltage ratios of optimal adaptation.
As shown in fig. 6, during the utility model offer, by signals of rotating transformer process circuit, passing through PCB and various electronics
Box body is fabricated to after period welding；Carrier wave excitation power supply module extracting power supply cord；Rotation becomes digital converter module 3 and draws netting twine
Binding post, when being set using, can be installed back box with the position of mounting receptacle, netting twine and power line are worn in metope first
Cross back box to be connected on the binding post of primary control box, if must also install door sensor etc control circuit, then by master control
System it is box-packed enter back box, the good screw of button, it is possible to use.
In use, it is electric in carrier wave excitation power supply module, revolve the change progress rotation of digital converter module 3 and become and encoder modes
Selection；Now AD2S1210BSTE chips and photoelectric encoder are initialized respectively in internal main control chip U5 this example；Master control
Chip is operated model selection；According to setting selection general mode or configuration mode；According to the mode of operation of selection, update
Register data；Data interaction and conversion are carried out by A/B data channel and encoder simultaneously；Main control chip is compiled according to encoder
Code and register data read the angular speed and Angle Position of rotary transformer；YS52XFW9753 rotations are chosen in the present embodiment to become
Depressor is used as sensor；Main control chip judges whether correctly, if correct to terminate；If incorrect, register data is adjusted
Again read off.
Main control chip U5 uses flush bonding module circuit design, can so effectively reduce total system circuit
The complexity of global design, enables system design engineer more effectively to focus on the design of system overall flow, and due to this
The low association of new middle unit module is highly reliable to design the robustness for effectively improving total system circuit.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term
State and be not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be
Combined in an appropriate manner in any one or more embodiments or example.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is not departing from the utility model
Principle and objective in the case of above-described embodiment can be changed in the range of the utility model, change, replace and
Modification.Scope of the present utility model is by appended claims and its equivalent limits.
Claims (6)
1. a kind of signals of rotating transformer process circuit, it is characterised in that including carrier wave excitation power supply module, carrier wave coil stimulating
Module, rotation become digital converter module, isolation signals interface module, rotary transformer module；The rotation becomes numeral conversion
Device module connects carrier wave coil excited modes block, rotary transformer module, isolation signals interface module respectively；The carrier wire
Circle excitation module connection carrier wave excitation power supply module；
The carrier wave coil excited modes block includes one-level amplifying unit, complementary push-pull unit；The one-level amplifying unit includes the
One amplifier, the second amplifier；The normal phase input end of first amplifier and the second amplifier is all connected with reference voltage；Negative
Input connects the sinusoidal rotation change excitation signal of positive and the negative sine rotation change excitation revolved and become that digital converter module is sent respectively
Signal；The complementary push-pull unit connects the output end of the first amplifier and the output end of the second amplifier respectively；The complementation
Recommending unit includes two opposite polarity triodes.
2. signals of rotating transformer process circuit according to claim 1, it is characterised in that the complementary push-pull unit bag
Include NPN type triode and PNP type triode；Also include the second diode for being connected with the NPN type triode base stage and with
The first diode that the base stage of PNP type triode is connected；The negative electrode and the second diode anode of first diode are common
Connect the output end of the first amplifier.
3. signals of rotating transformer process circuit according to claim 1, it is characterised in that the carrier wave excitation power supply mould
Block connects DC/DC insulating power supplies.
4. signals of rotating transformer process circuit according to claim 1, it is characterised in that the isolation signals circuit mould
Block connects photoelectric encoder by pulse passage.
5. signals of rotating transformer process circuit according to claim 1, it is characterised in that the rotation becomes digital quantizer
Module includes main control chip, clock circuit, communication interface circuit；The main control chip is from chip model
AD2S1210BSTE；First clock pins of the main control chip connect one end of crystal oscillator；The other end connection the of the crystal oscillator
Two clock pins；The crystal oscillator two ends are also respectively connected with one end of the first electric capacity, one end of the second electric capacity；First electric capacity
The other end, the other end of the second electric capacity are grounded respectively.
6. signals of rotating transformer process circuit according to claim 5, it is characterised in that described crystal oscillator is integrated
Active crystal oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621355007.6U CN206363185U (en) | 2016-12-12 | 2016-12-12 | Signals of rotating transformer process circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621355007.6U CN206363185U (en) | 2016-12-12 | 2016-12-12 | Signals of rotating transformer process circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206363185U true CN206363185U (en) | 2017-07-28 |
Family
ID=59374319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621355007.6U Expired - Fee Related CN206363185U (en) | 2016-12-12 | 2016-12-12 | Signals of rotating transformer process circuit |
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| Country | Link |
|---|---|
| CN (1) | CN206363185U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107689780A (en) * | 2017-09-08 | 2018-02-13 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of pumping signal amplifying circuit |
| CN109870589A (en) * | 2019-04-04 | 2019-06-11 | 哈尔滨恒达交通设备技术开发有限公司 | A kind of velocity sensor |
| CN114244224A (en) * | 2021-11-22 | 2022-03-25 | 杭州阔博科技有限公司 | Control method and system for solving abnormity of position sensor |
| CN114584143A (en) * | 2022-05-06 | 2022-06-03 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Dynamic life test board and test method for analog-to-digital converter |
-
2016
- 2016-12-12 CN CN201621355007.6U patent/CN206363185U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107689780A (en) * | 2017-09-08 | 2018-02-13 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of pumping signal amplifying circuit |
| CN109870589A (en) * | 2019-04-04 | 2019-06-11 | 哈尔滨恒达交通设备技术开发有限公司 | A kind of velocity sensor |
| CN114244224A (en) * | 2021-11-22 | 2022-03-25 | 杭州阔博科技有限公司 | Control method and system for solving abnormity of position sensor |
| CN114244224B (en) * | 2021-11-22 | 2023-09-22 | 杭州阔博科技有限公司 | Control method and system for solving position sensor abnormality |
| CN114584143A (en) * | 2022-05-06 | 2022-06-03 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Dynamic life test board and test method for analog-to-digital converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170728 Termination date: 20191212 |