CN208364903U - The twin voltage driving circuit of high-speed switch valve - Google Patents
The twin voltage driving circuit of high-speed switch valve Download PDFInfo
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- CN208364903U CN208364903U CN201820851364.4U CN201820851364U CN208364903U CN 208364903 U CN208364903 U CN 208364903U CN 201820851364 U CN201820851364 U CN 201820851364U CN 208364903 U CN208364903 U CN 208364903U
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Abstract
The utility model discloses a kind of twin voltage driving circuit of high-speed switch valve, and high voltage control signal PWM1 is connected in the control terminal of dual pressure control switch V1；Wherein one end of the output end connection dual pressure control switch V1 of high-voltage electricity potential source U1；The output end of low tension potential source U2 connects the other end of dual pressure control switch V1 and the cathode terminal of diode D2 through diode D1；Driving control signal PWM2 is connected in the control terminal of drive control switch V2；One end of drive control switch V2 is grounded, wherein one end of another terminating resistor RZ of drive control switch V2；The cathode of another termination voltage-stabiliser tube DWZ of resistance RZ, the anode of voltage-stabiliser tube DWZ connect the anode of diode D2.The utility model circuit structure is simple, low in cost, not only can effectively reduce the lag time that spool is attracted, discharges, but also being used alternatingly for high and low pressure power supply substantially reduces coil heating, improves the service life of high-speed switch valve.
Description
Technical field
The utility model relates to high-speed switch valve technical fields, and in particular to a kind of twin voltage driving electricity of high-speed switch valve
Road.
Background technique
High-speed switch valve is a critical component of gasoline passenger car turbo charge system, due to the electromagnetism of high-speed switch valve
Iron can always be lagged behind pwm signal by electromagnetic attraction, effect of the spool by spring force, the response process of high-speed switch valve
It opens, break.Driving voltage is improved in the driving circuit of high-speed switch valve can fast implement the actuation response of high-speed switch valve, but
It is that voltage increases, the temperature rise of coil is accelerated, and spool service life can be reduced.
The high-speed switch valve-driving circuit that China develops at this stage mainly uses univoltage to drive, and univoltage actuation techniques are
Only single driving power, driving voltage undertakes simultaneously provides the function of firing current and release current, shows themselves in that when driving
When brownout, electric current can not rise to spool and open the current value needed, the retard motion of high-speed switch valve；Work as driving voltage
When raising, the spool opening time shortens, but big voltage will provide high current, and electric current can not be quick during spool release
Zero is fallen to, the release time of high-speed switch valve is caused to increase.
How quick unlatching, the release request that one kind can either meet high-speed switch valve are provided, while energy can be reduced again
Amount loss, the driving circuit for improving high-speed switch valve service life become this field urgent problem.
Utility model content
The utility model is unable to satisfy high-speed switch valve for the high-speed switch valve-driving circuit of existing univoltage driving
The problem of quick unlatching and release request, provide a kind of twin voltage driving circuit of high-speed switch valve.
To solve the above problems, the utility model is achieved through the following technical solutions:
The twin voltage driving circuit of high-speed switch valve, by high-voltage electricity potential source U1, low tension potential source U2, dual pressure control switch
V1, drive control switch V2, diode D1, D2, voltage-stabiliser tube DWZ and resistance RZ are formed；High voltage control signal PWM1 is connected to
In the control terminal of dual pressure control switch V1；Wherein one end of the output end connection dual pressure control switch V1 of high-voltage electricity potential source U1；It is low
The input terminal of the output terminating diode D1 of piezoelectricity potential source U2, the other end of the output termination dual pressure control switch V1 of diode D1
With the cathode terminal of diode D2, and one of output end of this twin voltage driving circuit is formed；Driving control signal PWM2 connects
It connects in the control terminal of drive control switch V2；One end of drive control switch V2 is grounded, the other end of drive control switch V2
Wherein one end of connecting resistance RZ, and form the another output of this twin voltage driving circuit；Another termination pressure stabilizing of resistance RZ
The cathode of pipe DWZ, the anode of voltage-stabiliser tube DWZ connect the anode of diode D2.
In above scheme, the dual pressure control switch V1 and drive control switch V2 are transistor, wherein transistor gate
Control terminal of the pole as switch, the both ends of the source electrode and drain electrode of transistor respectively as switch.
Compared with prior art, the utility model circuit structure is simple, low in cost, not only can effectively reduce spool suction
It closes, the lag time of release, and being used alternatingly for high and low pressure power supply substantially reduces coil heating, improves high-speed switch
The service life of valve.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the twin voltage driving circuit of high-speed switch valve.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with specific example, and join
According to attached drawing, the utility model is further described.
Referring to Fig. 1, a kind of twin voltage driving circuit of high-speed switch valve is high by high-voltage electricity potential source U1, low tension potential source U2
Control switch V1 is pressed, drive control switch V2, diode D1, D2, voltage-stabiliser tube DWZ and resistance RZ are formed.High voltage control signal
PWM1 is connected in the control terminal of dual pressure control switch V1；The output end of high-voltage electricity potential source U1 connects its of dual pressure control switch V1
Middle one end；The input terminal of the output terminating diode D1 of low tension potential source U2, the output of diode D1 terminate dual pressure control switch
The other end of V1 and the cathode terminal of diode D2, and form one of output end of this twin voltage driving circuit.Drive control
Signal PWM2 is connected in the control terminal of drive control switch V2；One end of drive control switch V2 is grounded, drive control switch
Wherein one end of another terminating resistor RZ of V2, and form the another output of this twin voltage driving circuit.Resistance RZ's is another
The cathode of one termination voltage-stabiliser tube DWZ, the anode of voltage-stabiliser tube DWZ connect the anode of diode D2.
Dual pressure control switch V1 and drive control switch V2 is transistor IRFP150, and wherein transistor gate is used as and opens
The control terminal of pass, the both ends of the source electrode and drain electrode of transistor respectively as switch.The on-off of dual pressure control switch V1 directly affects
Whether high voltage power supply accesses the driving circuit of switch valve, is mainly controlled by PWM1.Drive control switch V2 on-off is direct
It influences to be formed by close loop control circuit between power supply (U1 or U2) and high-speed switch valve, mainly be controlled by PWM2.
Since the effect of driving control signal PWM2 is the actuation and release of control switch valve, driving control signal
The duty ratio of PWM2 is the duty ratio of high-speed switch valve.
The twin voltage driving circuit of high-speed switch valve is connect with high-speed switch valve, and works in the open stage, complete of spool
Full open stage and release stage.High voltage control signal PWM1 and driving control signal PWM2 control dual pressure control switch V1 respectively
With the switch of drive control switch V2, it is achieved in the accurate control of number of twin voltage driving.
When high voltage control signal PWM1 and high-voltage electricity potential source U1 are high level, dual pressure control switch V1 is connected, this is double
Voltag driving circuit is the high drive stage.Specific in circuit shown in FIG. 1, when high voltage control signal PWM1 signal is high electricity
Flat, when driving control signal PWM2 signal is low level, dual pressure control switch V1 closure, drive control switch V2 is disconnected, at this time
The driving voltage for acting on high-speed switch valve is high voltage U1, the voltage that U2 is then obtained after R1, R2, driving voltage at this time
For high pressure.
When driving control signal PWM2 and low tension potential source U2 is high level, drive control switch V2 is connected, this double electricity
Pressure driving circuit is the low pressure maintenance stage.Specific in circuit shown in FIG. 1, when high voltage control signal PWM1 signal is low electricity
Flat, when driving control signal PWM2 signal is high level, dual pressure control switch V1 is disconnected, drive control switch V2 closure, at this time
Only low pressure source works, and the driving voltage for acting on high-speed switch valve is low pressure U2.
When high voltage control signal PWM1 and driving control signal PWM2 are low level, driving power is disconnected, and passes through two
Pole pipe D2, voltage-stabiliser tube DWZ and resistance RZ three constitute releasing for high-speed switch valve can circuit.
In use, by DCPS digitally controlled power source transformation, so that U1=25V, U2=5V, if working frequency is 30HZ, high voltage control
The duty ratio of signal PWM1 is 0.1, and the duty ratio of driving control signal PWM2 is 0.5.When beginning, driving circuit is U1 driving,
High-speed switch valve coil current moment rises to maximum value, and high-speed switch valve starts to be attracted movement；When PWM1 is 0, PWM2 is just
Often work, driving circuit are that U2 drives, and smaller value of coil current rapid decrease when voltage is 5V, spool is normally attracted；
When PWM1, PWM2 are simultaneously 0, high-speed switch valve coil losing electricity, due to the low pressure maintenance effect of early period, electric current can be in the short time
0 is inside fallen to, high-speed switch valve starts released movement.
The utility model provides the control circuit of high-speed switch valve for different phase locating for valve core movement different
Operating voltage can effectively improve the control characteristic of high-speed switch valve and play the purpose for reducing energy loss.
It should be noted that although the above embodiment described in the utility model be it is illustrative, this is not to this
The limitation of utility model, therefore the utility model is not limited in above-mentioned specific embodiment.The utility model is not being departed from
In the case where principle, the other embodiment that all those skilled in the art obtain under the enlightenment of the utility model is accordingly to be regarded as
Within the protection of the utility model.
Claims (2)
1. the twin voltage driving circuit of high-speed switch valve, it is characterized in that: low tension potential source U2 is high voltage-controlled by high-voltage electricity potential source U1
Switch V1 is made, drive control switch V2, diode D1, D2, voltage-stabiliser tube DWZ and resistance RZ are formed；
High voltage control signal PWM1 is connected in the control terminal of dual pressure control switch V1；The output end of high-voltage electricity potential source U1 connects high
Press wherein one end of control switch V1；The input terminal of the output terminating diode D1 of low tension potential source U2, the output of diode D1
The other end of terminated high voltage control switch V1 and the cathode terminal of diode D2, and form one of them of this twin voltage driving circuit
Output end；
Driving control signal PWM2 is connected in the control terminal of drive control switch V2；One end of drive control switch V2 is grounded,
Wherein one end of another terminating resistor RZ of drive control switch V2, and form another output of this twin voltage driving circuit
End；
The cathode of another termination voltage-stabiliser tube DWZ of resistance RZ, the anode of voltage-stabiliser tube DWZ connect the anode of diode D2.
2. the twin voltage driving circuit of high-speed switch valve according to claim 1, characterized in that the dual pressure control switch
V1 and drive control switch V2 is transistor, wherein control terminal of the transistor gate as switch, the source electrode of transistor and leakage
Both ends of the pole respectively as switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820851364.4U CN208364903U (en) | 2018-06-01 | 2018-06-01 | The twin voltage driving circuit of high-speed switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820851364.4U CN208364903U (en) | 2018-06-01 | 2018-06-01 | The twin voltage driving circuit of high-speed switch valve |
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| Publication Number | Publication Date |
|---|---|
| CN208364903U true CN208364903U (en) | 2019-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820851364.4U Expired - Fee Related CN208364903U (en) | 2018-06-01 | 2018-06-01 | The twin voltage driving circuit of high-speed switch valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN208364903U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518520A (en) * | 2018-06-01 | 2018-09-11 | 钦州学院 | The twin voltage driving circuit of high-speed switch valve |
| CN111664288A (en) * | 2020-06-01 | 2020-09-15 | 浙江工业大学 | Method for considering both opening and closing dynamic characteristics and opening and closing buffer characteristics of high-speed switch valve |
| CN111810701A (en) * | 2020-04-24 | 2020-10-23 | 浙江工业大学 | Method for realizing variable dynamic characteristics of electromagnetic valve at each stage by switching multiple voltage sources |
-
2018
- 2018-06-01 CN CN201820851364.4U patent/CN208364903U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518520A (en) * | 2018-06-01 | 2018-09-11 | 钦州学院 | The twin voltage driving circuit of high-speed switch valve |
| CN111810701A (en) * | 2020-04-24 | 2020-10-23 | 浙江工业大学 | Method for realizing variable dynamic characteristics of electromagnetic valve at each stage by switching multiple voltage sources |
| CN111664288A (en) * | 2020-06-01 | 2020-09-15 | 浙江工业大学 | Method for considering both opening and closing dynamic characteristics and opening and closing buffer characteristics of high-speed switch valve |
| CN111664288B (en) * | 2020-06-01 | 2021-11-30 | 浙江工业大学 | Method for considering both opening and closing dynamic characteristics and opening and closing buffer characteristics of high-speed switch valve |
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| 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: 20190111 Termination date: 20190601 |