CN101893123A - High-speed solenoid valve drive circuit and implementing method thereof - Google Patents
High-speed solenoid valve drive circuit and implementing method thereof Download PDFInfo
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- CN101893123A CN101893123A CN 201010196724 CN201010196724A CN101893123A CN 101893123 A CN101893123 A CN 101893123A CN 201010196724 CN201010196724 CN 201010196724 CN 201010196724 A CN201010196724 A CN 201010196724A CN 101893123 A CN101893123 A CN 101893123A
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Abstract
The invention discloses a high-speed solenoid drive circuit, which comprises an electronic control unit module, a first solenoid valve processing module, a second solenoid valve processing module, a main circuit module, a sampling circuit module, a control operation module, a discharge circuit maintenance module and a discharge circuit cut-off module, wherein the first solenoid valve processing module comprises a first signal amplifying circuit module and a first MOSFET drive circuit module; and the second solenoid valve processing module comprises a second signal amplifying circuit module and a second MOSFET drive circuit module. The invention also discloses a method for implementing the high-speed solenoid drive circuit. The high-speed solenoid drive circuit has the advantages of controlling the opening of the solenoid valves under low voltage and large current, having real-time current feedback function, adopting a low-voltage and small-current single-trigger narrow pulse control mode, having strong adaptability, having function of maintaining and adjusting the current, saving energy and the like.
Description
Technical field
The present invention relates to the solenoid-driven field, be specifically related to a kind of high-speed electromagnetic valve driver circuit and its implementation.
Background technique
Existing high-speed electromagnetic valve driver circuit mainly is to adopt high voltage, big electric current to come the unlatching of solenoid valve is controlled, and adopts low voltage subsequently, and the PWM ripple of little electric current is kept conducting, thereby satisfies the requirement that high-speed electromagnetic valve drives.Therefore, there is following shortcoming in existing high-speed electromagnetic valve driver circuit aspect the application production: on the one hand, it needs the boost DC-DC modular converter that battery tension (12V or 24V) is raised to more than the 110V, the booster power module is the core component of this kind design, occupied many spaces, and high pressure has also brought risk; On the other hand, for the solenoid valve of different parameters, need adjusting hardware circuit or software program just can obtain the onesize electric current of keeping, adaptability is not strong.
Summary of the invention
One of purpose of the present invention is to overcome the shortcoming of prior art with not enough, a kind of high-speed electromagnetic valve driver circuit is provided, the present invention adopts the unlatching of low voltage, big Current Control solenoid valve, adopt low voltage, little electric current subsequently single trigger narrow pulse signal in real time feedback control and keep electric current.Solved low voltage, the quick response of solenoid valve under the big current drives has been saved circuit space and has been strengthened circuit safety, has satisfied the demand of different solenoid valves neatly.
Two of purpose of the present invention is to provide a kind of implementation method of high-speed electromagnetic valve driver circuit.
One of purpose of the present invention is achieved through the following technical solutions: a kind of high-speed electromagnetic valve driver circuit comprises:
The electronic control unit module is used for the cumulative time that output switching signal (J signal) comes control electromagnetic valve to open;
The first solenoid valve puocessing module is used for giving the main circuit module according to switching signal and solenoid-driven signal output current control signal;
The second solenoid valve puocessing module is used for giving the main circuit module according to the switching signal output current control signal of electronic control unit;
The main circuit module is used for the current controling signal according to the first solenoid valve puocessing module, the output of the second solenoid valve puocessing module, supplies with electromagnetic valve driving current, realizes the control that the line solenoid valve loop current is cut-off;
The sample circuit module is used to gather the current signal of main circuit module and feeds back to the control computing module;
The control computing module is used to receive the switching signal of electronic control unit module and the output signal of sample circuit module, analyzes and judges: if just open under the pattern at solenoid valve, then the transmit button signal is given the first solenoid valve puocessing module; If trigger under the burst pulse control mode single, then send the solenoid-driven signal to the first solenoid valve puocessing module;
Keep the discharge loop module, be used for keeping the electric current afterflow under the current-mode keeping;
By the discharge loop module, be used for turn-offing fast the main circuit blocks current.
To better implement the present invention, the described first solenoid valve puocessing module specifically comprises:
The first signal amplification circuit module is used to amplify the input signal of control computing module and send drive signal to a MOSFET drive circuit module;
The one MOSFET (MOSFET, MetalOxide Semicoductor Field Effect Transistor, metal oxide semiconductor field effect tube) drive circuit module, be used for controlling cut-offfing of MOSFET, realize control electromagnetic valve driving current in the main circuit module according to the drive signal of the first signal amplification circuit module.
The described second solenoid valve puocessing module specifically comprises:
Secondary signal amplification circuit module is used for the input signal of amplification electron control unit module and sends drive signal to the 2nd MOSFET drive circuit module;
The 2nd MOSFET drive circuit module is used for controlling cut-offfing of MOSFET according to the drive signal of secondary signal amplification circuit module, realizes the control to electromagnetic valve driving current in the main circuit module.
Preferably, described main circuit module improves power supply, electromagnetic valve coil L1, resistance R 8 by storage battery, and MOSFET Q1 and MOSFET Q2 composition;
A described MOSFET (Q1) drive circuit module is made up of optocoupler A2, resistance R 3 and resistance R 4;
The described first signal amplification circuit module is made up of operational amplifier A 1, resistance R 1, diode D1 and resistance R 2;
Described the 2nd MOSFET (Q2) drive circuit module is made up of resistance R 9, resistance R 10 and capacitor C 1;
Described secondary signal amplification circuit module is made up of operational amplifier A 4, resistance R 11 and diode D4;
Described sample circuit module is made up of resistance R 8, resistance R 7, resistance R 6 and operational amplifier A 3 modules;
Described control computing module is made up of single-chip microcomputer U1;
The described discharge loop module of keeping is made up of MOSFET Q2, resistance R 8, diode D2 and electromagnetic valve coil L1;
The described discharge loop module of ending is made up of electromagnetic valve coil L1, diode D3, diode D2 and battery feed.
Preferably, described single-chip microcomputer U1 employing model is an AT mega169 single-chip microcomputer.
Preferably, described high-speed electromagnetic valve driver circuit also comprises:
Keep current regulating module, be used for keeping under the current-mode, regulate and keep size of current, realize different solenoid valves are opened.
Preferably, the described current regulating module of keeping is made up of slide rheostat R5.
Two of purpose of the present invention is achieved through the following technical solutions: a kind of implementation method of high-speed electromagnetic valve driver circuit may further comprise the steps:
S0, judge whether output switching signal of electronic control unit module: if output switching signal then enters S1; If there is not output switching signal, then jump to S6;
S1, electronic control unit module output switching signal are given the second solenoid valve puocessing module and control computing module, enter step S2;
S2, sample circuit module are gathered the current signal of main circuit module and are fed back to the control computing module, the control computing module is according to the input signal of the switching signal and the sample circuit module of electronic control unit module, analyze and judge: judge that whether time that current solenoid valve opens open cumulative time less than the solenoid valve that switching signal is represented, if not, then jump to S0; If then further judge whether complete opening of solenoid valve:
If solenoid valve does not also have complete opening, then be in solenoid valve and just open pattern, enter step S3; If the solenoid valve complete opening then is in and keeps current-mode, enter step S4;
S3, solenoid valve just open pattern: control computing module transmit button signal is given the first solenoid valve puocessing module, the first solenoid valve puocessing module, the second solenoid valve puocessing module output current control signal are given the main circuit module, the main circuit module is supplied with electromagnetic valve driving current according to current controling signal, the control that realization is cut-off the line solenoid valve loop current, and be back to S2;
S4, keep current-mode: the main circuit module controls is kept the discharge loop module, keeps the electric current afterflow; Simultaneously, the sample circuit module is monitored the current signal of main circuit module in real time and is fed back to the control computing module, the main circuit blocks current signal that the control computing module collects the sample circuit module, compare with the current threshold of user preset, if main circuit blocks current value is lower than threshold values, then enter single burst pulse control mode that triggers, enter S5; If main circuit blocks current value is higher than threshold values, be back to S2;
S5, single burst pulse control mode that triggers: control computing mould sends the solenoid-driven signal to the first solenoid valve puocessing module, the first solenoid valve puocessing module output current control signal is given the main circuit module, and the main circuit module is supplied with electromagnetic valve driving current according to current controling signal; And be back to S2;
S6, by discharge loop module discharge, turn-off the main circuit blocks current fast, end operation.
To better implement the present invention, described step S2 judges whether complete opening of solenoid valve, specifically is meant:
The switching signal time of output is the elapsed time recently to receive the electronic control unit module with the control computing module, the time of carrying out decision operation with the control computing module is the concluding time, then from the outset between in the concluding time, when the size of current of electromagnetic valve coil reaches or once reached default current value in the main circuit module of flowing through that sample circuit monitors, the solenoid valve complete opening;
Otherwise solenoid valve does not have complete opening.
Preferably, main circuit module controls described in the step S4 is kept discharge loop module front and is also comprised the steps:
Keep size of current by keeping the current regulating module adjusting, realize different solenoid valves are opened.
The present invention has following advantage and effect with respect to prior art:
The first, the unlatching of low voltage, big Current Control solenoid valve; Boost DC-DC power module with respect to prior art, effectively saved circuit space, reduced security risk, strengthened safety, simultaneously by increasing by discharge loop and keeping discharge loop and match, realize the quick response shutoff requirement of solenoid valve, thereby satisfied the driving demand of high-speed electromagnetic valve;
The second, the single burst pulse control mode that triggers that has real-time feedback function of electric current and employing low voltage, little electric current; When the electric current of promptly monitoring main current modules is lower than the threshold values of setting, only triggering a burst pulse control field effect transistor Q1 opens, make the electromagnetic valve coil charging, treat that end-of-pulsing turn-offs field effect transistor Q1 and makes the electromagnetic valve coil discharge, when being lower than the threshold values of setting, triggers monitoring current a burst pulse once more, with this reciprocation cycle.Thereby make dutycycle and the frequency of keeping electric current do automatic adjusting according to the solenoid valve parameter, PWM control with respect to prior art, the change of this invention it goes without doing circuit hardware and software just can provide the electric current of keeping of same size to the solenoid valve of different parameters, satisfy the demand of different solenoid valves, adaptive capacity is strong;
Three, have the size of current of keeping can regulate function, regulate and keep size of current, satisfy the demand of different solenoid valves by increasing rheostat, adapts to wide, simultaneously also can be by regulating the size of current saving energy.
Description of drawings
Fig. 1 is the block diagram of a kind of high-speed electromagnetic valve driver circuit of the present invention;
Fig. 2 is the circuit theory diagrams of a kind of high-speed electromagnetic valve driver circuit of the present invention;
Fig. 3 is the flow chart of a kind of high-speed electromagnetic valve driver circuit implementation method of the present invention;
Fig. 4 is the circuit theory diagrams of main circuit module of the present invention;
Fig. 5 is the circuit theory diagrams of sample circuit module of the present invention;
Fig. 6 is the circuit theory diagrams that the present invention controls computing module;
Fig. 7 is the circuit theory diagrams that the present invention keeps the discharge loop module;
Fig. 8 is the circuit theory diagrams that the present invention ends the discharge loop module;
Fig. 9 is the circuit theory diagrams of the present invention's first signal amplification circuit module;
Figure 10 is the circuit theory diagrams of the present invention's the one MOSFET drive circuit module;
Figure 11 is the circuit theory diagrams of secondary signal amplification circuit module of the present invention;
Figure 12 is the circuit theory diagrams of the present invention's the 2nd MOSFET drive circuit module;
Figure 13 is J signal voltage and the electromagnetic valve coil current waveform in the single cycle under the 50Hz frequency;
Figure 14 is the MOSFET Q1 gate drive voltage in the single cycle and the current waveform of electromagnetic valve coil under the 50Hz frequency.
Embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, a kind of high-speed electromagnetic valve driver circuit comprises:
Electronic control unit (Electronic Control Unit, electronic control unit module) module is used for the cumulative time that output switching signal (J signal) comes control electromagnetic valve to open;
The first solenoid valve puocessing module is used for giving the main circuit module according to switching signal and solenoid-driven signal output current control signal;
The second solenoid valve puocessing module is used for giving the main circuit module according to the switching signal output current control signal of electronic control unit;
The main circuit module is used for the current controling signal according to the first solenoid valve puocessing module, the output of the second solenoid valve puocessing module, supplies with electromagnetic valve driving current, realizes the control that the line solenoid valve loop current is cut-off;
The sample circuit module is used to gather the current signal of main circuit module and feeds back to the control computing module;
The control computing module is used to receive the switching signal of electronic control unit module and the output signal of sample circuit module, analyzes and judges: if just open under the pattern at solenoid valve, then the transmit button signal is given the first solenoid valve puocessing module; If trigger under the burst pulse control mode single, then send the solenoid-driven signal to the first solenoid valve puocessing module;
Keep the discharge loop module, be used for keeping the electric current afterflow under the current-mode keeping;
By the discharge loop module, be used for turn-offing fast the line solenoid valve loop current of main circuit module.
The described first solenoid valve puocessing module specifically comprises:
The first signal amplification circuit module is used to amplify the input signal of control computing module and send drive signal to a MOSFET drive circuit module;
The one MOSFET drive circuit module is used for controlling cut-offfing of MOSFET according to the drive signal of the first signal amplification circuit module, realizes the control to electromagnetic valve driving current in the main circuit module.
The described second solenoid valve puocessing module specifically comprises:
Secondary signal amplification circuit module is used for the input signal of amplification electron control unit module and sends drive signal to the 2nd MOSFET drive circuit module;
The 2nd MOSFET drive circuit module is used for controlling cut-offfing of MOSFET according to the drive signal of secondary signal amplification circuit module, realizes the control to electromagnetic valve driving current in the main circuit module.
Fig. 2 is the circuit theory diagrams of a kind of high-speed electromagnetic valve driver circuit of the present invention, and as shown in Figure 4, described main circuit module improves power supply, electromagnetic valve coil L1, resistance R 8 by storage battery, and MOSFET Q1 and MOSFETQ2 composition; As shown in figure 10, a described MOSFET (Q1) drive circuit module is made up of optocoupler A2, resistance R 3 and resistance R 4; As shown in Figure 9, the described first signal amplification circuit module is made up of operational amplifier A 1, resistance R 1, diode D1 and resistance R 2; As shown in figure 12, described the 2nd MOSFET (Q2) drive circuit module is made up of resistance R 9, resistance R 10 and capacitor C 1; As shown in figure 11, described secondary signal amplification circuit module is made up of operational amplifier A 4, resistance R 11 and diode D4; As shown in Figure 5, described sample circuit module is made up of resistance R 8, resistance R 7, resistance R 6 and operational amplifier A 3 modules; As shown in Figure 6, described control computing module is made up of single-chip microcomputer U1 (AT mega169 single-chip microcomputer); As shown in Figure 7, the described discharge loop module of keeping is made up of MOSFET Q2, resistance R 8, diode D2 and electromagnetic valve coil L1; As shown in Figure 8, the described discharge loop module of ending is made up of electromagnetic valve coil L1, diode D3, diode D2 and battery feed.
Described high-speed electromagnetic valve driver circuit also comprises: keep current regulating module, be used for keeping under the current-mode, regulate and keep size of current, realize different solenoid valves are opened.The described current regulating module of keeping is made up of slide rheostat R5.
The implementation method of above-mentioned high-speed electromagnetic valve driver circuit as shown in Figure 3, may further comprise the steps:
S0, judge whether output switching signal of electronic control unit module: if output switching signal then enters S1; If there is not output switching signal, then jump to S6;
S1, electronic control unit module output switching signal (J signal) are given the second solenoid valve puocessing module and control computing module, enter step S2;
S2, sample circuit module are gathered the current signal of main circuit module and are fed back to the control computing module, the control computing module is according to the input signal of the switching signal and the sample circuit module of electronic control unit module, analyze and judge: judge that whether time that current solenoid valve opens open cumulative time less than the solenoid valve that switching signal is represented, if not, then jump to S0; If then further judge whether complete opening of solenoid valve:
If solenoid valve does not also have complete opening, then be in solenoid valve and just open pattern, enter step S3; If the solenoid valve complete opening then is in and keeps current-mode, enter step S4;
S3, solenoid valve just open pattern: control computing module transmit button signal is given the first solenoid valve puocessing module, the first solenoid valve puocessing module, the second solenoid valve puocessing module output current control signal are given the main circuit module, the main circuit module is supplied with electromagnetic valve driving current according to current controling signal, the control that realization is cut-off the line solenoid valve loop current, and be back to S2;
S4, keep current-mode: the main circuit module controls is kept the discharge loop module, keeps the electric current afterflow; Simultaneously, the sample circuit module is monitored the current signal of main circuit module in real time and is fed back to the control computing module, the main circuit blocks current signal that the control computing module collects the sample circuit module, compare with the current threshold of user preset, if main circuit blocks current value is lower than threshold values, then enter single burst pulse control mode that triggers, enter S5; If main circuit blocks current value is higher than threshold values, be back to S2;
S5, single burst pulse control mode that triggers: control computing mould sends the solenoid-driven signal to the first solenoid valve puocessing module, the first solenoid valve puocessing module output current control signal is given the main circuit module, and the main circuit module is supplied with electromagnetic valve driving current according to current controling signal; And be back to S2;
S6, by discharge loop module discharge, turn-off the main circuit blocks current fast, end operation.
Preferably, described step S2 judges whether complete opening of solenoid valve, specifically is meant:
The switching signal time of output is the elapsed time recently to receive the electronic control unit module with the control computing module, the time of carrying out decision operation with the control computing module is the concluding time, then from the outset between in the concluding time, when the size of current of electromagnetic valve coil reaches or once reached default current value in the main circuit module of flowing through that sample circuit monitors, the solenoid valve complete opening;
Otherwise solenoid valve does not have complete opening.
Preferably, main circuit module controls described in the step S4 is kept discharge loop module front and is also comprised the steps:
Keep size of current by keeping the current regulating module adjusting, realize different solenoid valves are opened.
Working principle of the present invention is as follows:
The J signal is the actuating signal that the electronic control unit module is sent, being used for the control electromagnetic valve electric current cut-offs, when the electronic control unit module applies the J signal, signal becomes two-way respectively, and first via signal is successively by control computing module, the first signal amplification circuit module, a MOSFET drive circuit module and main circuit module; The second road signal is successively by secondary signal amplification circuit module, the 2nd MOSFET drive circuit module and main circuit module; Final two paths of signals is opened MOSFET Q1 and the MOSFET Q2 in the main circuit module, electric current flows into electromagnetic valve coil from the 12V battery feed by MOSFET Q1 under the condition that Q1 and Q2 open simultaneously, flow back to power cathode by MOSFET Q2 and resistance R 8 again, drive solenoid valve work.
Enter behind the solenoid valve complete opening and keep current-mode: in fact keeping current-mode only needs a very little electric current just can keep the opening state of solenoid valve.Its mode of execution is by sample circuit module, control computing module, the first signal amplification circuit module, a MOSFET drive circuit module, main circuit module and keep the discharge loop module and realize.Promptly keeping under the current-mode, the main circuit module controls is kept the discharge loop module, keeps the electric current afterflow, and what make circuit keeps size of current at a smaller value, to save the energy; Simultaneously, the sample circuit module is monitored the current signal of main circuit module in real time and is fed back to the control computing module, the main circuit blocks current signal that the control computing module collects the sample circuit module, compare with the current threshold of user preset, if main circuit blocks current value is lower than threshold values, only triggering a burst pulse control MOSFET Q1 opens, make the electromagnetic valve coil charging, treat that end-of-pulsing turn-offs MOSFET Q1 and makes the electromagnetic valve coil discharge, when being lower than the threshold values of setting, electric current triggers a burst pulse when monitoring once more, with this reciprocation cycle.Equal the solenoid valve unlatching cumulative time that switching signal is represented until the time that current solenoid valve is opened.
Because the sample circuit module is to the real-time monitoring feedback function of main circuit module drive electric current, and single burst pulse drive controlling pattern, making control keep the driving signal frequency of electric current can be automatically with the solenoid valve parameter adjustment, keeping current value remains unchanged, in addition can be by regulating slide rheostat R5 resistance, the pressure drop of resistance R 6 is changed into regulate the size of keeping electric current, satisfied the unlatching requirement of different solenoid valves.
After the electronic control unit module stops to send the J signal, the drive signal of the drive signal of the first signal amplification circuit module and secondary signal amplification circuit module all disappears, make MOSFET Q1 and Q2 by, electromagnetic valve coil is by discharging by discharge loop, energy by the current discharge formal transformation for to take as the leading factor with the voltage discharge type, turn-off coil current fast, improve the response time; Promptly arrive power supply 12V by diode D3 repid discharge, residual current discharges along keeping the discharge loop module by drain D and the source S of the MOSFET Q2 of HR high resistance, thereby accelerated discharge time greatly, these are different with the discharge by current forms, and the current forms velocity of discharge can not reach so fast.
In J signal incoming frequency is that 50Hz, amplitude are the pulse of 5v, and access solenoid valve under the 12V constant voltage input power supply utilizes driving circuit for electromagnetic valve shown in Figure 2 to do experiment.
Wherein Figure 13 is the J signal voltage in the single cycle and the current waveform of electromagnetic valve coil under the 50Hz frequency, by the measured J signal voltage of oscillograph and the current waveform of the corresponding electromagnetic valve coil of flowing through, wherein Ch1 represents the J voltage waveform signal, and Ch2 represents the current waveform of the electromagnetic valve coil of flowing through; Reflected the quick response of driving circuit for electromagnetic valve, promptly J signal rising edge immediately trigger current climb, J signal trailing edge triggers immediately and turn-offs the line solenoid valve loop current.
Figure 14 is the MOSFET Q1 gate drive voltage in the single cycle and the current waveform of electromagnetic valve coil under the 50Hz frequency, by the measured MOSFET Q1 gate drive voltage signal of oscillograph and the current waveform of the corresponding electromagnetic valve coil of flowing through, wherein Ch1 represents MOSFET Q1 gate drive voltage signal waveform, and Ch2 represents the current waveform of the electromagnetic valve coil of flowing through; Reflected single burst pulse control mode that triggers of keeping current phase, by real-time monitor current, control current fluctuation amplitude one interval among a small circle, approximate output DC stream, can keep onesize threshold current for different solenoid valves, enlarge adaptability.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. a high-speed electromagnetic valve driver circuit is characterized in that, comprising:
The electronic control unit module is used for the cumulative time that output switching signal comes control electromagnetic valve to open;
The first solenoid valve puocessing module is used for giving the main circuit module according to switching signal and solenoid-driven signal output current control signal;
The second solenoid valve puocessing module is used for giving the main circuit module according to the switching signal output current control signal of electronic control unit;
The main circuit module is used for the current controling signal according to the first solenoid valve puocessing module, the output of the second solenoid valve puocessing module, supplies with electromagnetic valve driving current, realizes the control that the line solenoid valve loop current is cut-off;
The sample circuit module is used to gather the current signal of main circuit module and feeds back to the control computing module;
The control computing module is used to receive the switching signal of electronic control unit module and the output signal of sample circuit module, analyzes and judges: if just open under the pattern at solenoid valve, then the transmit button signal is given the first solenoid valve puocessing module; If trigger under the burst pulse control mode single, then send the solenoid-driven signal to the first solenoid valve puocessing module;
Keep the discharge loop module, be used for keeping the electric current afterflow under the current-mode keeping;
By the discharge loop module, be used for turn-offing fast the main circuit blocks current.
2. according to the described a kind of high-speed electromagnetic valve driver circuit of claim 1, it is characterized in that the described first solenoid valve puocessing module specifically comprises:
The first signal amplification circuit module is used to amplify the input signal of control computing module and send drive signal to a MOSFET drive circuit module;
The one MOSFET drive circuit module is used for controlling cut-offfing of MOSFET according to the drive signal of the first signal amplification circuit module, realizes the control to electromagnetic valve driving current in the main circuit module.
3. according to the described a kind of high-speed electromagnetic valve driver circuit of claim 1, it is characterized in that the described second solenoid valve puocessing module specifically comprises:
Secondary signal amplification circuit module is used for the input signal of amplification electron control unit module and sends drive signal to the 2nd MOSFET drive circuit module;
The 2nd MOSFET drive circuit module is used for controlling cut-offfing of MOSFET according to the drive signal of secondary signal amplification circuit module, realizes the control to electromagnetic valve driving current in the main circuit module.
4. according to the described a kind of high-speed electromagnetic valve driver circuit of claim 3, it is characterized in that,
Described main circuit module improves power supply, electromagnetic valve coil L1, resistance R 8 by storage battery, and MOSFE Q1 and MOSFE Q2 composition;
A described MOSFET drive circuit module is made up of optocoupler A2, resistance R 3 and resistance R 4;
The described first signal amplification circuit module is made up of operational amplifier A 1, resistance R 1, diode D1 and resistance R 2;
Described the 2nd MOSFET drive circuit module is made up of resistance R 9, resistance R 10 and capacitor C 1;
Described secondary signal amplification circuit module is made up of operational amplifier A 4, resistance R 11 and diode D4;
Described sample circuit module is made up of resistance R 8, resistance R 7, resistance R 6 and operational amplifier A 3 modules;
Described control computing module is made up of single-chip microcomputer U1;
The described discharge loop module of keeping is made up of MOSFE Q2, resistance R 8, diode D2 and electromagnetic valve coil L1;
The described discharge loop module of ending is made up of electromagnetic valve coil L1, diode D3, diode D2 and battery feed.
5. according to the described a kind of high-speed electromagnetic valve driver circuit of claim 4, it is AT mega169 single-chip microcomputer that described single-chip microcomputer U1 adopts model.
6. according to the described a kind of high-speed electromagnetic valve driver circuit of claim 1, it is characterized in that described high-speed electromagnetic valve driver circuit also comprises:
Keep current regulating module, be used for keeping under the current-mode, regulate and keep size of current, realize different solenoid valves are opened.
7. according to the described a kind of high-speed electromagnetic valve driver circuit of claim 6, it is characterized in that the described current regulating module of keeping is made up of slide rheostat R5.
8. the implementation method of a high-speed electromagnetic valve driver circuit is characterized in that, may further comprise the steps:
S0, judge whether output switching signal of electronic control unit module: if output switching signal then enters S1; If there is not output switching signal, then jump to S6;
S1, electronic control unit module output switching signal are given the second solenoid valve puocessing module and control computing module, enter step S2;
S2, sample circuit module are gathered the current signal of main circuit module and are fed back to the control computing module, the control computing module is according to the input signal of the switching signal and the sample circuit module of electronic control unit module, analyze and judge: judge that whether time that current solenoid valve opens open cumulative time less than the solenoid valve that switching signal is represented, if not, then jump to S0; If then further judge whether complete opening of solenoid valve:
If solenoid valve does not also have complete opening, then be in solenoid valve and just open pattern, enter step S3; If the solenoid valve complete opening then is in and keeps current-mode, enter step S4;
S3, solenoid valve just open pattern: control computing module transmit button signal is given the first solenoid valve puocessing module, the first solenoid valve puocessing module, the second solenoid valve puocessing module output current control signal are given the main circuit module, the main circuit module is supplied with electromagnetic valve driving current according to current controling signal, the control that realization is cut-off the line solenoid valve loop current, and be back to S2;
S4, keep current-mode: the main circuit module controls is kept the discharge loop module, keeps the electric current afterflow; Simultaneously, the sample circuit module is monitored the current signal of main circuit module in real time and is fed back to the control computing module, the main circuit blocks current signal that the control computing module collects the sample circuit module, compare with the current threshold of user preset, if main circuit blocks current value is lower than threshold values, then enter single burst pulse control mode that triggers, enter S5; If main circuit blocks current value is higher than threshold values, be back to S2;
S5, single burst pulse control mode that triggers: control computing mould sends the solenoid-driven signal to the first solenoid valve puocessing module, the first solenoid valve puocessing module output current control signal is given the main circuit module, the main circuit module is supplied with electromagnetic valve driving current according to current controling signal, and is back to S2;
S6, by discharge loop module discharge, turn-off the main circuit blocks current fast, end operation.
9. the implementation method of described a kind of high-speed electromagnetic valve driver circuit according to Claim 8 is characterized in that, described step S2 judges whether complete opening of solenoid valve, specifically is meant:
The switching signal time of output is the elapsed time recently to receive the electronic control unit module with the control computing module, the time of carrying out decision operation with the control computing module is the concluding time, then from the outset between in the concluding time, when the size of current of electromagnetic valve coil reaches or once reached default current value in the main circuit module of flowing through that sample circuit monitors, the solenoid valve complete opening;
Otherwise solenoid valve does not have complete opening.
10. the implementation method of described a kind of high-speed electromagnetic valve driver circuit according to Claim 8 is characterized in that the module controls of main circuit described in the step S4 is kept discharge loop module front and also comprised the steps:
Keep size of current by keeping the current regulating module adjusting, realize different solenoid valves are opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010196724XA CN101893123B (en) | 2010-06-08 | 2010-06-08 | High-speed solenoid valve drive circuit and implementing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010196724XA CN101893123B (en) | 2010-06-08 | 2010-06-08 | High-speed solenoid valve drive circuit and implementing method thereof |
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| CN101893123A true CN101893123A (en) | 2010-11-24 |
| CN101893123B CN101893123B (en) | 2012-03-28 |
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| CN201010196724XA Expired - Fee Related CN101893123B (en) | 2010-06-08 | 2010-06-08 | High-speed solenoid valve drive circuit and implementing method thereof |
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| CN103277564A (en) * | 2013-06-06 | 2013-09-04 | 贵州师范大学 | High-speed electromagnetic switching valve with fast discharging circuit |
| CN104126090A (en) * | 2012-03-26 | 2014-10-29 | 爱信艾达株式会社 | Solenoid valve control device and control method |
| CN104633225A (en) * | 2014-12-05 | 2015-05-20 | 中国航空工业集团公司第六三一研究所 | Drive and control circuit for fast solenoid valve |
| CN106402458A (en) * | 2016-10-31 | 2017-02-15 | 北京航天动力研究所 | Energy-saving current adjustable chopper drive circuit |
| CN109058574A (en) * | 2018-08-30 | 2018-12-21 | 宁波奕力电磁技术有限公司 | The control method of low-power consumption electromagnetic valve with location status monitoring |
| CN109107795A (en) * | 2018-08-07 | 2019-01-01 | 叶小芽 | A kind of spray gun of the jetting machine convenient for adjusting |
| CN109185537A (en) * | 2018-10-24 | 2019-01-11 | 安徽锐视光电技术有限公司 | A kind of high-speed electromagnetic valve driving protection system |
| CN110375107A (en) * | 2019-07-15 | 2019-10-25 | 东风汽车集团有限公司 | Automobile electromagnetic valve controling circuit and its control method |
| CN112162513A (en) * | 2020-09-28 | 2021-01-01 | 杭州沃镭智能科技股份有限公司 | Multi-channel electromagnetic valve driving device and method |
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| CN104126090A (en) * | 2012-03-26 | 2014-10-29 | 爱信艾达株式会社 | Solenoid valve control device and control method |
| CN103277564A (en) * | 2013-06-06 | 2013-09-04 | 贵州师范大学 | High-speed electromagnetic switching valve with fast discharging circuit |
| CN104633225A (en) * | 2014-12-05 | 2015-05-20 | 中国航空工业集团公司第六三一研究所 | Drive and control circuit for fast solenoid valve |
| CN106402458A (en) * | 2016-10-31 | 2017-02-15 | 北京航天动力研究所 | Energy-saving current adjustable chopper drive circuit |
| CN106402458B (en) * | 2016-10-31 | 2019-07-12 | 北京航天动力研究所 | A kind of adjustable Chopper driving circuit of energy-saving current |
| CN109107795A (en) * | 2018-08-07 | 2019-01-01 | 叶小芽 | A kind of spray gun of the jetting machine convenient for adjusting |
| CN109058574A (en) * | 2018-08-30 | 2018-12-21 | 宁波奕力电磁技术有限公司 | The control method of low-power consumption electromagnetic valve with location status monitoring |
| CN109185537A (en) * | 2018-10-24 | 2019-01-11 | 安徽锐视光电技术有限公司 | A kind of high-speed electromagnetic valve driving protection system |
| CN110375107A (en) * | 2019-07-15 | 2019-10-25 | 东风汽车集团有限公司 | Automobile electromagnetic valve controling circuit and its control method |
| CN110375107B (en) * | 2019-07-15 | 2020-11-24 | 东风汽车集团有限公司 | Automobile electromagnetic valve control circuit and control method thereof |
| CN112162513A (en) * | 2020-09-28 | 2021-01-01 | 杭州沃镭智能科技股份有限公司 | Multi-channel electromagnetic valve driving device and method |
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