CN204794785U - Step motor high pressure is adjusted and protection circuit - Google Patents
Step motor high pressure is adjusted and protection circuit Download PDFInfo
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- CN204794785U CN204794785U CN201520500865.4U CN201520500865U CN204794785U CN 204794785 U CN204794785 U CN 204794785U CN 201520500865 U CN201520500865 U CN 201520500865U CN 204794785 U CN204794785 U CN 204794785U
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Abstract
The utility model provides a step motor high pressure is adjusted and protection circuit, include: step motor, step motor driver, high -pressure primary input voltage regulator, voltage sampling circuit, PLC controller, PLC controller control signal output is connected to step motor driver control signal input, step motor driver control output is connected to the step motor control end, the high -pressure primary input voltage regulator signal transmission terminal of voltage sampling circuit signal reception end connection, PLC controller sampled signal receiving terminal is connected to voltage sampling circuit signal transmission end, and step motor holds the direct drive by step motor driver output, high pressure primary input voltage regulator is used for regulated output voltage's size, stepper motor drives voltage regulator contact carries out output voltage's regulation. The utility model discloses step motor just can open the high pressure after can getting back to earlier the lower limit when going up the electricity again in improper operation or after cutting off the power supply suddenly, so also is the protection to equipment and ray pass.
Description
Technical field
The utility model relates to industrial X-ray control circuit field, particularly relates to a kind of stepping motor high voltage adjusting and protective circuit.
Background technology
The high-voltage power supply regulating circuit of industrial X-ray diagnostic machine plays vital regulating action for the condition of work of X-ray tube.All by more traditional conventional general driven by motor method at the voltage adjusting method of the primary input terminal of the high-voltage power supply of traditional industrial X-ray, although this method is simple and be easy to realize, also exist precision when regulation voltage with fluctuate all larger.Now conventional power frequency high voltage generator is all realize high pressure by transformer boost method, if the fluctuation of input is comparatively large and unstable so output just has larger fluctuation, this all can have a certain impact to the effect of the target of X-ray tube and X imaging.But can not well regulate stepping motor and protect in prior art, this just needs those skilled in the art badly and solves corresponding technical problem.
Utility model content
The utility model is intended at least solve the technical problem existed in prior art, especially innovatively proposes the elementary input voltage that a kind of stepping motor and driver coordinate to come regulating and controlling high-tension transformer.
In order to realize above-mentioned purpose of the present utility model, the utility model provides a kind of stepping motor high voltage adjusting and protective circuit, and it comprises: the input of stepping motor, stepper motor driver, primary of high voltage voltage regulator, voltage sampling circuit, PLC;
Stepper motor driver control signal input connects PLC control signal output, described step motor control end connects stepper motor driver control output end, voltage sampling circuit signal receiving end connects primary of high voltage input voltage regulator Signal transmissions end, described voltage sampling circuit signal sending end connects PLC sampled signal receiving terminal, stepping motor is by stepper motor driver output Direct driver, described primary of high voltage input voltage regulator is used for the size of regulation output voltage, and described stepping motor drives voltage regulator contact to carry out the adjustment of output voltage.
Described stepping motor high voltage adjusting and protective circuit, preferably, also comprise sampling transformer;
Described sampling transformer inputs connects primary of high voltage input output voltage regulator, and described sampling transformer is used for sampling primary of high voltage input voltage regulator being carried out to output voltage.
Described stepping motor high voltage adjusting and protective circuit, preferably, also comprise current rectifying and wave filtering circuit;
Described current rectifying and wave filtering circuit is connected between PLC and sampling transformer, for rectifying and wave-filtering.
Described stepping motor high voltage adjusting and protective circuit, preferably, described PLC is ST-200.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
The utility model has the control circuit be easily understood, more accurate, stable when the voltage-regulation of primary of high voltage input, useful to the useful life of ray tube, convenient when making, simple.Also having stepping motor when powering on again after improper operation or power-off suddenly exactly could open high pressure after first getting back to lower limit, is so also the protection of closing equipment and ray.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the utility model stepping motor high voltage adjusting and protective circuit schematic diagram;
Fig. 2 is the utility model stepping motor high voltage adjusting and protective circuit figure.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
As shown in Figure 1, 2, stepping motor high voltage adjusting controls as figure.
The utility model provides a kind of stepping motor high voltage adjusting and protective circuit, and it comprises: the input of stepping motor, stepper motor driver, primary of high voltage voltage regulator, voltage sampling circuit, PLC;
Stepper motor driver control signal input connects PLC control signal output, described step motor control end connects stepper motor driver control output end, voltage sampling circuit signal receiving end connects primary of high voltage input voltage regulator Signal transmissions end, described voltage sampling circuit signal sending end connects PLC sampled signal receiving terminal, stepping motor is by stepper motor driver output Direct driver, described primary of high voltage input voltage regulator is used for the size of regulation output voltage, and described stepping motor drives voltage regulator contact to carry out the adjustment of output voltage.
Described stepping motor high voltage adjusting and protective circuit, preferably, also comprise sampling transformer;
Described sampling transformer inputs connects primary of high voltage input output voltage regulator, and described sampling transformer is used for sampling primary of high voltage input voltage regulator being carried out to output voltage.
Described stepping motor high voltage adjusting and protective circuit, preferably, also comprise current rectifying and wave filtering circuit;
Described current rectifying and wave filtering circuit is connected between PLC and sampling transformer, for rectifying and wave-filtering.
Described stepping motor high voltage adjusting and protective circuit, preferably, described PLC is ST-200.
(1) be stepper motor driver, its effect is by the function of pulse signal also rotation of Driving Stepping Motor after conversion, can also arrange some parameters.
(2) be stepping motor, its effect is the size adjustment directly driving voltage regulator contact to carry out output voltage.
(3) primary of high voltage input voltage regulator, its effect is can the size of regulation output voltage, thinks that primary of high voltage input provides voltage.
(4) voltage regulator exports.
(5) sampling transformer, its effect is gathered by the output voltage of voltage regulator.
(6) be PLC, for sending out pulse and control action to stepper motor driver.
When opening high pressure, PLC sends pulse signal to stepper motor driver, rotate with regard to Driving Stepping Motor after driver receives signal, if when the value that sampling transformer collects arrives predetermined value, voltage regulator makes stepping motor stop after will arriving corresponding voltage location.The fluctuation of primary voltage will be reduced in the process, make primary voltage more stable.When closing high pressure, PLC can send out again pulse to driver, and driver will control motor reversal and stop at lower position.If when open high pressure because the external cause of burst makes grid power blackout, so when again powering on, stepping motor could open high pressure after first getting back to lower limit.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.
Claims (4)
1. stepping motor high voltage adjusting and a protective circuit, is characterized in that, comprising: the input of stepping motor, stepper motor driver, primary of high voltage voltage regulator, voltage sampling circuit, PLC;
Stepper motor driver control signal input connects PLC control signal output, described step motor control end connects stepper motor driver control output end, voltage sampling circuit signal receiving end connects primary of high voltage input voltage regulator Signal transmissions end, described voltage sampling circuit signal sending end connects PLC sampled signal receiving terminal, stepping motor is by stepper motor driver output Direct driver, described primary of high voltage input voltage regulator is used for the size of regulation output voltage, and described stepping motor drives voltage regulator contact to carry out the adjustment of output voltage.
2. stepping motor high voltage adjusting according to claim 1 and protective circuit, is characterized in that, also comprises sampling transformer;
Described sampling transformer inputs connects primary of high voltage input output voltage regulator, and described sampling transformer is used for sampling primary of high voltage input voltage regulator being carried out to output voltage.
3. stepping motor high voltage adjusting according to claim 1 and protective circuit, is characterized in that, also comprise current rectifying and wave filtering circuit;
Described current rectifying and wave filtering circuit is connected between PLC and sampling transformer, for rectifying and wave-filtering.
4. stepping motor high voltage adjusting according to claim 1 and protective circuit, is characterized in that, described PLC is ST-200.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500865.4U CN204794785U (en) | 2015-07-10 | 2015-07-10 | Step motor high pressure is adjusted and protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500865.4U CN204794785U (en) | 2015-07-10 | 2015-07-10 | Step motor high pressure is adjusted and protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204794785U true CN204794785U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520500865.4U Active CN204794785U (en) | 2015-07-10 | 2015-07-10 | Step motor high pressure is adjusted and protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204794785U (en) |
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2015
- 2015-07-10 CN CN201520500865.4U patent/CN204794785U/en active Active
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