CN109185537A - A kind of high-speed electromagnetic valve driving protection system - Google Patents
A kind of high-speed electromagnetic valve driving protection system Download PDFInfo
- Publication number
- CN109185537A CN109185537A CN201811245523.7A CN201811245523A CN109185537A CN 109185537 A CN109185537 A CN 109185537A CN 201811245523 A CN201811245523 A CN 201811245523A CN 109185537 A CN109185537 A CN 109185537A
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- current
- module
- controller
- pwm pulse
- pulse width
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention discloses a kind of high-speed electromagnetic valve driving protection system, including current detection module, A/D conversion module, controller and pwm pulse width modulation module；Current detection module is connect with A/D conversion module, and controller is connect with A/D conversion module and pwm pulse width modulation module respectively；Current detection module flows through electric current on solenoid valve major loop and the electric current of acquisition is sent to A/D conversion module for acquiring；Received electric current is converted into digital quantity signal for A/D converter by A/D conversion module, and is sent to controller；Controller is analyzed received digital quantity signal, is handled, and sends control instruction to pwm pulse width modulation module；Pwm pulse width modulation module is used to receive the control instruction of controller transmission, adjusts the size of driving current.The present invention reduces driving current by the duty ratio to adjust driving current, guarantees that driving current is less than safe current, realizes the effective protection to circuit, and improve the service life and safety of solenoid valve.
Description
Technical field
The invention belongs to the technical fields of solenoid-driven component, are related to a kind of high-speed electromagnetic valve driving protection system.
Background technique
Solenoid valve (Electromagnetic valve) is electromagnetically controlled industrial equipment, is for controlling fluid
Automatic foundamental element belongs to actuator, however it is not limited to hydraulic, pneumatic.Solenoid valve is divided into three categories from above, respectively Direct Action Type
Solenoid valve, step direct-acting type electromagnetic valve and guide electromagnetic valve are realized by carrying out control system of switching on or off electricity to the coil in solenoid valve
To the switch control of solenoid valve.
Conventional solenoid valve driving circuit is controlled using analog circuit, and driving current is difficult to control during driving, sometimes
Driving current can damage electric current plate or component even solenoid valve more than the amount electric current of circuit board and component.
Summary of the invention
The purpose of the present invention is to provide a kind of high-speed electromagnetic valves to drive protection system, passes through controller and electric current is combined to examine
Module and pwm pulse width modulation module are surveyed, when the electric current where solenoid valve on circuit is more than safe current, controller hair
It send control instruction to reduce driving current to pwm pulse width modulation module to adjust the duty ratio of driving current, guarantees driving
Electric current is less than safe current, solves existing solenoid valve because driving current is excessive, causes circuit where solenoid valve that can not be had
The protection of effect ground and the low problem low with safety of solenoid valve service life.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of high-speed electromagnetic valve driving protection system, including current detection module, A/D conversion module, controller and PWM arteries and veins
Rush width modulation module；
Current detection module is connect with A/D conversion module, controller respectively with A/D conversion module and pwm pulse width tune
The connection of molding block；
Current detection module is for acquiring the analog signals for flowing through electric current on solenoid valve major loop, and by the electric current of acquisition
Analog signals are sent to A/D conversion module；
A/D conversion module is A/D converter, for receiving the current-mode analog quantity signal of current detection module transmission, and will
The analog signals of electric current are converted into the digital quantity signal of electric current, and the digital quantity signal of the electric current after conversion is sent to controller；
Controller is used to receive the digital quantity signal of the electric current of A/D conversion module transmission, digital quantity signal is analyzed,
Processing, judge electric current digital quantity signal whether be more than setting safe current digital quantity signal, if being more than, controller hair
Send control instruction to pwm pulse width modulation module；
Pwm pulse width modulation module is used to receive the control instruction of controller transmission, is more than safety electricity to driving current
The electric current of stream carries out the duty cycle adjustment of drive waveforms, to control the size of driving current.
Further, the current detection module is current sensor, and the current sensor is mounted on the master of solenoid valve
On circuit.
Further, the controller uses fpga chip.
Further, the pwm pulse width modulation module is pwm pulse width modulator, the pwm pulse width tune
Device processed is mounted on the main major loop of solenoid valve.
Beneficial effects of the present invention:
High-speed electromagnetic valve provided by the invention drives protection system, passes through controller and combines current detection module and PWM
Pulse width modulation module, when the electric current where solenoid valve on circuit is more than safe current, controller sends control instruction
Driving current is reduced to adjust the duty ratio of driving current to pwm pulse width modulation module, guarantees that driving current is less than peace
Total current realizes the effective protection to circuit, and improves the service life and safety of solenoid valve.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of schematic diagram of high-speed electromagnetic valve driving protection system in the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Refering to Figure 1, a kind of high-speed electromagnetic valve drives protection system, including current detection module, A/D modulus of conversion
Block, controller and pwm pulse width modulation module；
Current detection module is connect with A/D conversion module, controller respectively with A/D conversion module and pwm pulse width tune
The connection of molding block；
Current detection module uses current sensor, is mounted on the major loop of solenoid valve, flows through solenoid valve for acquiring
The analog signals of electric current on major loop, and the current-mode analog quantity signal of acquisition is sent to A/D conversion module；
A/D conversion module is A/D converter, for receiving the current-mode analog quantity signal of current detection module transmission, and will
The analog signals of electric current are converted into the digital quantity signal of electric current, and the digital quantity signal of the electric current after conversion is sent to controller；
Controller uses fpga chip, the digital quantity signal of the electric current for receiving the transmission of A/D conversion module, to digital quantity
Signal is analyzed, is handled, judge electric current digital quantity signal whether be more than setting safe current digital quantity signal, if super
It crosses, then controller sends control instruction to pwm pulse width modulation module；
Pwm pulse width modulation module is pwm pulse width modulator, is mounted on the main major loop of solenoid valve, for connecing
The control instruction that admission controller is sent is more than that the electric current of safe current carries out the duty cycle adjustment of drive waveforms to driving current,
To control the size of driving current, the circuit where solenoid valve is protected, the service life of solenoid valve is improved.
High-speed electromagnetic valve provided by the invention drives protection system, passes through controller and combines current detection module and PWM
Pulse width modulation module, when the electric current where solenoid valve on circuit is more than safe current, controller sends control instruction
Driving current is reduced to adjust the duty ratio of driving current to pwm pulse width modulation module, guarantees that driving current is less than peace
Total current realizes the effective protection to circuit, and improves the service life and safety of solenoid valve.
The above content is just an example and description of the concept of the present invention, affiliated those skilled in the art
It makes various modifications or additions to the described embodiments or is substituted in a similar manner, without departing from invention
Design or beyond the scope defined by this claim, be within the scope of protection of the invention.
Claims (4)
1. a kind of high-speed electromagnetic valve drives protection system, it is characterised in that: including current detection module, A/D conversion module, control
Device and pwm pulse width modulation module；
Current detection module is connect with A/D conversion module, controller respectively with A/D conversion module and pwm pulse width modulated mould
Block connection；
Current detection module is for acquiring the analog signals for flowing through electric current on solenoid valve major loop, and by the current analog of acquisition
Amount signal is sent to A/D conversion module；
A/D conversion module is A/D converter, for receiving the current-mode analog quantity signal of current detection module transmission, and by electric current
Analog signals be converted into the digital quantity signal of electric current, the digital quantity signal of the electric current after conversion is sent to controller；
Controller is used to receive the digital quantity signal of the electric current of A/D conversion module transmission, is analyzed digital quantity signal, is located
Reason, judge electric current digital quantity signal whether be more than setting safe current digital quantity signal, if being more than, controller send
Control instruction is to pwm pulse width modulation module；
Pwm pulse width modulation module is used to receive the control instruction of controller transmission, is more than safe current to driving current
Electric current carries out the duty cycle adjustment of drive waveforms, to control the size of driving current.
2. a kind of high-speed electromagnetic valve according to claim 1 drives protection system, it is characterised in that: the current detecting mould
Block is current sensor, and the current sensor is mounted on the major loop of solenoid valve.
3. a kind of high-speed electromagnetic valve according to claim 1 drives protection system, it is characterised in that: the controller uses
Fpga chip.
4. a kind of high-speed electromagnetic valve according to claim 1 drives protection system, it is characterised in that: the pwm pulse is wide
Degree modulation module is pwm pulse width modulator, and the pwm pulse width modulator is mounted on the main major loop of solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245523.7A CN109185537A (en) | 2018-10-24 | 2018-10-24 | A kind of high-speed electromagnetic valve driving protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245523.7A CN109185537A (en) | 2018-10-24 | 2018-10-24 | A kind of high-speed electromagnetic valve driving protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109185537A true CN109185537A (en) | 2019-01-11 |
Family
ID=64943251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811245523.7A Pending CN109185537A (en) | 2018-10-24 | 2018-10-24 | A kind of high-speed electromagnetic valve driving protection system |
Country Status (1)
| Country | Link |
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| CN (1) | CN109185537A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270868A (en) * | 2018-10-24 | 2019-01-25 | 安徽锐视光电技术有限公司 | A kind of height driving system for electromagnetic valve |
| CN111399368A (en) * | 2020-03-26 | 2020-07-10 | 电子科技大学 | Redundancy technology of multi-path electromagnetic valve driving system |
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| CN102719828A (en) * | 2012-07-02 | 2012-10-10 | 中交四航工程研究院有限公司 | Constant-current intermittent cathodic protection and corrosion acceleration system and implementation method thereof |
| CN203368016U (en) * | 2013-07-23 | 2013-12-25 | 深圳市晶福源电子技术有限公司 | Overload current-limiting protection circuit |
| CN105783612A (en) * | 2016-03-28 | 2016-07-20 | 北京航天控制仪器研究所 | General miniaturization digital electric steering engine controller and control method thereof |
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2018
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| CN102223743A (en) * | 2010-04-16 | 2011-10-19 | 北京京东方光电科技有限公司 | Light emitting diode (LED) driving control circuit and method thereof |
| CN101867296A (en) * | 2010-06-01 | 2010-10-20 | 国电南瑞科技股份有限公司 | Series-resonant direct-current/direct-current converter |
| CN101893123A (en) * | 2010-06-08 | 2010-11-24 | 陆国祥 | High-speed solenoid valve drive circuit and implementing method thereof |
| CN102719828A (en) * | 2012-07-02 | 2012-10-10 | 中交四航工程研究院有限公司 | Constant-current intermittent cathodic protection and corrosion acceleration system and implementation method thereof |
| CN203368016U (en) * | 2013-07-23 | 2013-12-25 | 深圳市晶福源电子技术有限公司 | Overload current-limiting protection circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270868A (en) * | 2018-10-24 | 2019-01-25 | 安徽锐视光电技术有限公司 | A kind of height driving system for electromagnetic valve |
| CN111399368A (en) * | 2020-03-26 | 2020-07-10 | 电子科技大学 | Redundancy technology of multi-path electromagnetic valve driving system |
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Application publication date: 20190111 |