CN108953732A - The valve driving circuit of launching tube - Google Patents
The valve driving circuit of launching tube Download PDFInfo
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- CN108953732A CN108953732A CN201811124991.9A CN201811124991A CN108953732A CN 108953732 A CN108953732 A CN 108953732A CN 201811124991 A CN201811124991 A CN 201811124991A CN 108953732 A CN108953732 A CN 108953732A
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- driving
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- 239000003990 capacitor Substances 0.000 claims description 46
- 239000013078 crystal Substances 0.000 claims description 17
- 230000005611 electricity Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 4
- 101100489713 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GND1 gene Proteins 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 101100434411 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ADH1 gene Proteins 0.000 description 1
- 101150102866 adc1 gene Proteins 0.000 description 1
- 101150042711 adc2 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
Abstract
The invention belongs to valve actuation techniques fields, more particularly to a kind of valve driving circuit of launching tube.The circuit includes: signal acquisition module, acquires the air pressure signal in launching tube；The air pressure signal is converted to pressure information, and the size of the pressure information and standard pressure information by judgment module, sends discharge/charge air valve enabling signal to drive module according to comparison result, is also used to send control signal to drive module；Drive module receives control signal and enters on state, drives charge valve starting according to the charge valve enabling signal, or drive vent valve starting according to the vent valve enabling signal.Circuit structure of the present invention is simple, and driving signal stability is good.
Description
Technical field
The invention belongs to valve actuation techniques fields, are to be related to a kind of valve driving circuit of launching tube more specifically.
Background technique
Currently, the valve of launching tube internal controller air pressure automatically shuts down and opens oneself and become mainstream, such as emit
Cylinder is internally provided with valve driving circuit, once air pressure is too high or too low, then gas pressure regulator control valve driving circuit is to filling
Gas or deflation valve are driven, and control inflation or deflation valve are opened, so as to adjust the atmospheric pressure value in launching tube, to reach
The air pressure of standard.But since the air pressure of launching tube needs accurate monitoring, and the big polyphyly of current valve driving circuit uses and divides
Vertical element is built, so that whole driving circuit is complicated and driving signal can be unstable, poor reliability.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of valve driving circuit of launching tube, to solve in the prior art
The problem that driving circuit complexity keeps driving signal unstable.
The embodiment of the invention provides a kind of valve driving circuits of launching tube, comprising: signal acquisition module, judgment module
And drive module；
The signal acquisition module is connect with the judgment module, is acquired the air pressure signal in launching tube and is sent to institute
State judgment module；
The judgment module is suitable for connecting with external power supply, also connect with the drive module, the air pressure signal is turned
It is changed to pressure information, and the size of the pressure information and standard pressure information, according to comparison result to the driving mould
Block sends charge valve enabling signal or vent valve enabling signal, while also sending control signal to the drive module；
The drive module receives control signal and enters on state, driven according to the charge valve enabling signal internal
Charge valve starting, or internal vent valve starting is driven according to the vent valve enabling signal.
Optionally, the judgment module includes: signal input part, voltage end, the first signal output end, second signal output
End and control terminal；
The signal input part of the judgment module is connect with the signal acquisition module, and the voltage end of the judgment module is suitable
Connect in external power supply, the first signal output end, second signal output end and the control terminal of the judgment module with it is described
Drive module connection；
The signal input part of the judgment module receives the air pressure signal, and the voltage end of the judgment module receives external
First signal output end of the voltage that power supply provides, the judgment module sends charge valve enabling signal to the drive module,
The second signal output end of the judgment module sends vent valve enabling signal, the control of the judgment module to the drive module
End processed sends control signal to the drive module.
Optionally, the Air filling and discharging valves gate drive circuit further include: provide the crystal of clock signal for the judgment module
Oscillator, first capacitor and the second capacitor；
The first end of the crystal oscillator and the input end of clock of judgment module connect, and the second of the crystal oscillator
End is connect with the output terminal of clock of judgment module；
The first end of the first capacitor is connect with the first end of the crystal oscillator, the second end of the first capacitor
Ground connection；
The first end of second capacitor is connect with the second end of the crystal oscillator, the second end of second capacitor
It is connect with the second end of the first capacitor.
Optionally, the drive module includes: the first signal input part, second signal input terminal, third signal input part
And voltage end；
The first signal input part, second signal input terminal and the third signal input part of the drive module are sentenced with described
Disconnected module connection, the voltage end of the drive module are suitable for connecting with external power supply；
First signal input part of the drive module receives the charge valve enabling signal；
The second signal input terminal of the drive module receives the vent valve enabling signal；
The third signal input part of the drive module receives the control signal；
The voltage end of the drive module receives the voltage that external non-transformer provides.
Optionally, the drive module further include: control unit, signal processing unit, the first driving unit and second drive
Moving cell；
Described control unit, input terminal are connect with the third signal input part of the drive module, at output end and signal
The third input terminal connection for managing unit, for receiving control signal and entering on state；
The signal processing unit, first input end are connect with the first signal input part of the drive module, and second is defeated
Enter end to connect with the second signal input terminal of the drive module, the signal of the first output end and first driving unit inputs
End connection, second output terminal are connect with the signal input part of second driving unit, for receiving the charge valve starting letter
Number and send inflation pulse signal to first driving unit, or receive the vent valve enabling signal and driven to described second
Moving cell sends deflation pulse signal；
First driving unit drives the starting of inner inflatable valve according to the inflation pulse signal；Or
Second driving unit drives internal vent valve starting according to the deflation pulse signal.
Optionally, described control unit includes: logic gate, first resistor, second resistance, third capacitor and transistor；
The first input end of the logic gate and the second input terminal are connect with the input terminal of described control unit, described to patrol
The output end for collecting door is connect with the first end of the first resistor；
The second end of the first resistor is connect with the base stage of the transistor；
The emitter of the transistor is grounded, and the collector of the transistor is connect with the first end of the second resistance；
The first end of the third capacitor is connect with the base stage of the transistor, second end and the transistor of the third capacitor
Emitter connection；
The second end of the second resistance and the output end of described control unit connect.
Optionally, the signal processing unit includes: driving chip and the 4th capacitor；
The first input end of the driving chip is connect with the first input end of the signal processing unit, the driving core
Second input terminal of piece is connect with the second input terminal of the signal processing unit, the third input terminal of the driving chip and institute
State the third input terminal connection of signal processing unit, the of the first output end of the driving chip and the signal processing unit
The connection of one output end, the second output terminal of the driving chip is connect with the second output terminal of the signal processing unit, described
The first ground terminal and the second ground terminal of driving chip are grounded, and the third input terminal of the driving chip passes through the 4th electricity
Appearance is connect with the second ground terminal, and the first voltage end of the driving chip is connect with external power supply.
Optionally, the signal processing unit further include: 3rd resistor and first diode；
The first input end of the driving chip is connected by the second voltage end of the 3rd resistor and driving chip, institute
The second input terminal for stating driving chip is connect by the first diode with the second voltage end of the driving chip.
Optionally, first driving unit includes the: the second diode, the first relay, third diode and inflation
Valve；
The anode of second diode is connect with the signal input part of first driving unit, second diode
Cathode connect with external power supply；
The first end of first relay is connect with the anode of second diode, and the second of first relay
End is connect with the cathode of second diode, and the cathode of the third end of first relay and the third diode connects
It connects, the 4th end of first relay is connect with external power supply；
The plus earth of the third diode；The cathode of the first end of the charge valve and the third diode connects
It connects, the second end of the charge valve is connect with the anode of the third diode.
Optionally, second driving unit includes: the 4th diode, the second relay, the 5th diode and vent valve；
The anode of 4th diode is connect with the signal input part of second driving unit, the 4th diode
Cathode connect with external power supply；
The first end of second relay is connect with the anode of the 4th diode, and the second of second relay
End is connect with the cathode of the 4th diode, and the cathode of the third end of second relay and the 5th diode connects
It connects, the 4th end of second relay is connect with external power supply；
The plus earth of 5th diode；The cathode of the first end of the vent valve and the 5th diode connects
It connects, the second end of the vent valve is connect with the anode of the 5th diode.
The beneficial effect of the valve driving circuit of launching tube compared with prior art is in the embodiment of the present invention: judging mould
The air pressure signal is converted to pressure information, and the size of the pressure information and standard pressure information by block, according to than
Discharge/charge air valve enabling signal is sent to drive module compared with result, avoids complicated decision circuitry, circuit structure is simple；Driving
Module enters on state by controlling signal, further according to charge valve enabling signal driving charge valve starting, or according to institute
The driving vent valve starting of vent valve enabling signal is stated, makes to drive the signal of valve more stable.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the structural schematic diagram of the valve driving circuit of launching tube provided in an embodiment of the present invention；
Fig. 2 is the circuit diagram of the valve driving circuit of launching tube provided in an embodiment of the present invention.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, in case unnecessary details interferes description of the invention.
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
Referring to Fig. 1 and Fig. 2, the valve driving circuit of a kind of launching tube provided in an embodiment of the present invention, including signal acquisition
Module 100, judgment module 200 and driving circuit 300.
Wherein, signal acquisition module 100 is connect with judgment module 200；Judgment module 200 is suitable for connecting with external power supply,
Also it is connect with drive module 300.
Signal acquisition module 100 acquires the air pressure signal in launching tube and is sent to judgment module 200.
The air pressure signal is converted to pressure information, and the pressure information and standard pressure by judgment module 200
The size of information sends charge valve enabling signal or vent valve enabling signal to drive module 300 according to comparison result, simultaneously also
Control signal is sent to drive module 300.
Drive module 300 receives control signal and enters on state, fills according to charge valve enabling signal driving is internal
Air valve starting, or internal vent valve starting is driven according to the vent valve enabling signal.
Illustratively, after external power supply provides power supply for the valve driving circuit of launching tube, signal acquisition module 100 is acquired
Air pressure signal in launching tube, then the air pressure signal is converted to air pressure described in pressure information and comparison by judgment module 200
The size of information and standard pressure information, when the pressure information is less than the standard pressure information, judgment module 200 is to drive
Dynamic model block 300 sends charge valve enabling signal, when the pressure information is greater than the standard pressure information, judgment module 200
Vent valve enabling signal is sent to drive module 300, the air pressure conditions of standard are always maintained at the air pressure guaranteed in launching tube, no
Complicated decision circuitry is needed, simplifies circuit structure, accurate driving signal guarantees the stability of driving signal；Then it drives
Dynamic model block 300 enters on state according to control signal, based on the received the starting of charge valve enabling signal driving inner inflatable valve,
Or vent valve enabling signal drives internal vent valve starting based on the received, stabilized driving valve signal protects circuit.
Optionally, signal acquisition module 100 can be baroceptor, be also possible to that detection air pressure function may be implemented
Other sensors part, the present embodiment to 100 specific structure of signal acquisition module without limitation.
The valve driving circuit of above-mentioned launching tube, the air pressure signal is converted to pressure information by judgment module 200, and is compared
The size of the pressure information and standard pressure information sends the starting of discharge/charge air valve to drive module 300 according to comparison result
Signal avoids complicated decision circuitry, it is simple to realize circuit structure, and driving signal stability is good；Drive module 300 is logical
It crosses control signal and enters on state, and charge valve starting is driven according to the charge valve enabling signal, or according to the deflation
Valve enabling signal drives vent valve starting, makes to drive the signal of valve more stable.
Further, referring to fig. 2, as a specific embodiment, judgment module 200 includes: signal input part, voltage
End, the first signal output end, second signal output end and control terminal.
Wherein, the signal input part of judgment module 200 is connect with signal acquisition module 100, the voltage end of judgment module 200
Suitable for being connect with external power supply, the first signal output end, second signal output end and the control terminal of judgment module 200 with driving
Module 300 connects.
The signal input part of judgment module 200 receives the air pressure signal, and the voltage end of judgment module 200 receives external electrical
First signal output end of the voltage that source provides, judgment module 200 sends charge valve enabling signal, judgement to drive module 300
The second signal output end of module 200 sends vent valve enabling signal to drive module 300, the control terminal of judgment module 200 to
Drive module 300 sends control signal.
Illustratively, judgment module 200 can be EM78P148 chip, and such as the U1 in Fig. 2, EM78P148 chip has height
The characteristics of degree, low-voltage and low-power consumption, and the signal stabilization handled is good, interferes small.The P70/CIN+ of EM78P148 chip draws
Signal input part of the foot as judgment module 200, voltage end of the VDD pin of EM78P148 chip as judgment module 200,
First signal output end of the P61/ADC1 pin of EM78P148 chip as judgment module 200, the P62/ of EM78P148 chip
Second signal output end of the ADC2 pin as judgment module 200, the P51/PWM1 pin of EM78P148 chip, which is used as, judges mould
The control terminal of block 200.
Optionally, the valve driving circuit of the launching tube further include: crystal oscillator X1, first capacitor C1 and the second electricity
Hold C2.
The first end of crystal oscillator X1 is connect with the input end of clock of judgment module 200, and the second of crystal oscillator X1
End is connect with the output terminal of clock of judgment module 200.The first end of first capacitor C1 is connect with the first end of crystal oscillator X1,
The second end of first capacitor C1 is grounded；The first end of second capacitor C2 is connect with the second end of crystal oscillator X1, the second capacitor
The second end of C2 is connect with the second end of first capacitor C1.Crystal oscillator X1 is that judgment module 200 provides clock signal, first
The parallel connection of capacitor C1 and the second capacitor C2 can be filtered the crystal oscillator X1 clock signal inputted, reduce interference.
Illustratively, input end of clock of the P55/OSCI pin of EM78P148 chip as judgment module 200,
Output terminal of clock of the P54/OSCO pin of EM78P148 chip as judgment module 200.Wherein the Vss of EM78P148 chip draws
Foot ground connection.
Optionally, the valve driving circuit of the launching tube further include: filter capacitor C5 and filter resistance R5.
The first end of filter capacitor C5 is connect with the reset terminal of judgment module 200, i.e., the first end of filter capacitor C5 with
The RESET pin of EM78P148 chip connects, and the second end of filter capacitor C5 is connect with external power supply, and the first of filter resistance R5
End is connect with the first end of filter capacitor C5, the second end ground connection of filter resistance R5.
Filter capacitor C5 can be filtered the reset signal of external power input to judgment module 200, reduce interference,
Guarantee the stable operation of judgment module, while reset setting can also be carried out to judgment module 200 by reset terminal.Filter resistance
R5 is filtered the reset signal of judgment module 200.
Above-mentioned judgment module 200, structure is simple, small in size, and the driving signal of output is stablized.
Further, referring to Fig. 1 and Fig. 2, as a specific embodiment, drive module 300 includes: the input of the first signal
End, second signal input terminal, third signal input part and voltage end.
Wherein, the first signal input part, second signal input terminal and third signal input part of drive module 300 with sentence
Disconnected module 200 connects, and the voltage end of drive module 300 is suitable for connecting with external power supply.
Specifically, the first signal input part of drive module 300 is connect with the first signal output end of judgment module 200,
The second signal input terminal of drive module 300 is connect with the second signal output end of judgment module 200, and the of drive module 300
Three signal input parts are connect with the control terminal of judgment module 200.
First signal input part of drive module 300 receives the charge valve enabling signal；Second letter of drive module 300
Number input terminal receives the vent valve enabling signal；The third signal input part of drive module 300 receives the control signal；It drives
The voltage end of dynamic model block 300 receives the voltage that external non-transformer provides.
Optionally, drive module 300 further include: control unit 310, signal processing unit 320, the first driving unit 330
With the second driving unit 340.
Wherein, the input terminal of control unit 310 is connect with the third signal input part of drive module 300, control unit 310
Output end connect with the third input terminal of signal processing unit 320；Control unit 310 is led for receiving control signal and entering
Logical state.
The first input end of signal processing unit 320 is connect with the first signal input part of drive module 300, signal processing
Second input terminal of unit 320 is connect with the second signal input terminal of drive module 300, and the first of signal processing unit 320 is defeated
Outlet is connect with the signal input part of the first driving unit 330, and the second output terminal of signal processing unit 320 and the second driving are single
The signal input part connection of member 340；Signal processing unit 320 is for receiving the charge valve enabling signal and driving to first single
Member 330 sends inflation pulse signal, or receives the vent valve enabling signal and send deflation pulse to the second driving unit 340
Signal.
First driving unit 330 drives the starting of inner inflatable valve according to the inflation pulse signal；Or
Second driving unit 340 drives internal vent valve starting according to the deflation pulse signal.
Optionally, referring to fig. 2, control unit 310 includes: logic gate U3, first resistor R1, second resistance R2, third electricity
Hold C3 and transistor Q1.
Wherein, the first input end of logic gate U3 and the second input terminal are connect with the input terminal of control unit 310, logic
The output end of door U3 is connect with the first end of first resistor R1.The second end of first resistor R1 is connect with the base stage of transistor Q1.
The emitter of transistor Q1 is grounded, and the collector of transistor Q1 is connect with the first end of second resistance R2；The of third capacitor C3
One end is connect with the base stage of transistor Q1, and the second end of third capacitor C3 is connect with the emitter of transistor Q1；Second resistance R2
Second end connect with the output end of control unit 310.Third capacitor C3 can be with the base current of stable transistor Q1.
Optionally, logic gate U3 can be nor gate.When logic gate U3 is nor gate, the control of the output of judgment module 200
Signal is low level signal, and logic gate U3 is also possible to or door, then the control signal that judgment module 200 exports is high level letter
Number.The control signal that logic gate U3 exports judgment module 200 is filtered stabilization.
Optionally, transistor Q1 can be triode, be also possible to field-effect tube.The present embodiment is specific to transistor Q1's
Structure is without limitation.
Optionally, control unit 310 further includes resistance R4.
The first end of resistance R4 is connect with external power supply, and the second end of resistance R4 is connect with the first end of first resistor R1.
External power supply provides conducting voltage by resistance R4 for transistor Q1.Resistance R4 is as divider resistance, by the voltage of external power supply
It carries out being divided to transistor Q1, transistor Q1 is connected, the more accurate control signal driving first according to judgment module output
Driving unit 330 and the second driving unit 340.
Optionally, signal processing unit 320 includes: driving chip U2 and the 4th capacitor C4.
The first input end of driving chip U2 is connect with the first input end of signal processing unit 320, driving chip U2's
Second input terminal is connect with the second input terminal of signal processing unit 320, the third input terminal and signal processing of driving chip U2
The third input terminal of unit 320 connects, and the first output end of driving chip U2 and the first output end of signal processing unit 320 connect
It connects, the second output terminal of driving chip U2 is connect with the second output terminal of signal processing unit 320, and the first of driving chip U2 connects
Ground terminal and the second ground terminal are grounded, and the third input terminal of driving chip U2 is connect by the 4th capacitor C4 with the second ground terminal,
The first voltage end of driving chip U2 is connect with external power supply.
4th capacitor C4 can reduce the interference to external signal to driving chip U2 internal signal.
Optionally, filter capacitor C4 can also compose in parallel filter module with other capacitors, to the operating voltage of output and
Working frequency further filters and stablizes.
Optionally, driving chip U2 can be DRV8837 chip.
Illustratively, such as Fig. 2, the IN1 pin of DRV8837 chip is connect with the first input end of signal processing unit 320,
The IN2 pin of DRV8837 chip is connect with the second input terminal of signal processing unit 320, the SLEEP pin of DRV8837 chip
It is connect with the third input terminal of signal processing unit 320, the of the OUT1 pin of DRV8837 chip and signal processing unit 320
The connection of one output end, the OUT2 pin of DRV8837 chip are connect with the second output terminal of signal processing unit 320, DRV8837 core
The GND pin and GND1 pin of piece are grounded, and the SLEEP pin of DRV8837 chip passes through the 4th capacitor C4 and DRV8837 chip
The connection of GND1 pin, the VCC pin of DRV8837 chip connect with external power supply.
Optionally, driving chip U2 can be MS8837 chip.MS8837 chip has the side of low-power consumption and high integration
Case, small in size, quiet on state resistance is small, and sleep current is small.MS8837 chip is powered using twin voltage double track, and logical drive part is
1.8V to 7V, motor control part are divided into 1.8V to 11V, support pulse signal control.
Optionally, signal processing unit 320 further include: 3rd resistor R3 and first diode D1.
The first input end of driving chip U1 is connect by 3rd resistor R3 with the second voltage end of driving chip U1, is driven
The second input terminal of chip U1 is connect by first diode D1 with the second voltage end of driving chip U1.Illustratively,
The IN1 pin of DRV8837 chip is connect by 3rd resistor R3 with the VM pin of DRV8837 chip, the IN2 of DRV8837 chip
Pin is connect by first diode D1 with the VM pin of DRV8837 chip.
Optionally, the first driving unit 330 include the: the second diode D2, the first relay Z1, third diode D3 and
Charge valve M1.
Wherein, the anode of the second diode D2 is connect with the signal input part of the first driving unit 330, the second diode D2
Cathode connect with external power supply；The anode of the first end of first relay Z1 and the second diode D2 are connect, first after
The second end of electric appliance Z1 is connect with the cathode of the second diode D2, the third end of the first relay Z1 and bearing for third diode D3
Pole connection, the 4th end of the first relay Z1 is connect with external power supply；The plus earth of third diode D3；The of charge valve M1
One end is connect with the cathode of third diode D3, and the second end of charge valve M1 is connect with the anode of third diode D3.
Second diode D2 can eliminate the counter electromotive force when starting the first relay Z1；Third diode D3 can disappear
Except the counter electromotive force when starting charge valve M1, circuit is protected.
Optionally, the second driving unit 340 includes: the 4th diode D4, the second relay Z2, the 5th diode D5 and puts
Air valve M2.
Wherein, the anode of the 4th diode D4 is connect with the signal input part of second driving unit, and the described 4th 2
The cathode of pole pipe D4 is connect with external power supply；The first end of second relay Z2 is connect with the anode of the 4th diode D4, and second
The second end of relay Z2 is connect with the cathode of the 4th diode D4, and the third end of the second relay Z2 is with the 5th diode D5's
Cathode connection, the 4th end of the second relay Z2 is connect with external power supply；The plus earth of 5th diode D5；Vent valve M2's
First end is connect with the cathode of the 5th diode D5, and the second end of vent valve M2 is connect with the anode of the 5th diode D5.
4th diode D4 can eliminate the counter electromotive force when starting the second relay Z2；5th diode D5 can disappear
Except the counter electromotive force when starting vent valve M2, circuit is protected.
Above-mentioned drive module 300, control unit 310 receives control signal and enters on state, and control signal is issued
Signal processing unit 320, signal processing unit 320, which exports starting valve to driving unit according to control signal and driving signal, to be believed
Number, and the counter electromotive force by being generated when diode D2 and D3 elimination valve opening, circuit devcie is protected, driving signal is stablized.
Specifically, in conjunction with above-mentioned signal acquisition module 100, judgment module 200 and drive module 300 to the worked of circuit
Journey is illustrated:
Signal acquisition module 100 obtains the air pressure signal in launching tube and is sent to judgment module 200；Judgment module 200
Charge valve enabling signal is sent to drive module 300 when judging that pressure information is less than the size of standard pressure information, is sentenced simultaneously
Disconnected module 200 also sends control signal, i.e., when sending low level (or high level) to logic gate U3, logic to drive module 300
Door U3 exports high level (or low level) to transistor Q1 by logical operation, while external voltage exports electricity to transistor Q1
Pressure, make it is in the conductive state between the collector and emitter of transistor Q1, and then to the third input terminal of driving chip U2 send out
Continuity signal is sent, driving chip U2 enters working condition according to Continuity signal, and charge valve M1 enabling signal driving first is driven
Moving cell 330, the relay Z1 movement of the first driving unit 330, adds to DC voltage on charge valve M1, keeps charge valve M1 dynamic
Make, while the cooperation of diode D2 and diode D3 reduces the counter electromotive force generated when charge valve M1 movement, protects circuit devcie.
When judgment module 200 sends high level (or low level) to drive module 300, switching diode collector and emitter are cut
Only, driving chip U2 does not work, and relay Z1 is failure to actuate, and no-voltage adds on charge valve M1, and charge valve M1 is failure to actuate.
Vent valve starting letter is sent to drive module 300 when judging that pressure information is greater than the size of standard pressure information
Number, while judgment module 200 also sends control signal to drive module 300, i.e., sends low level (or high electricity to logic gate U3
It is flat) when, logic gate U3 exports high level (or low level) to transistor Q1 by logical operation, while external voltage is to transistor
Q1 output voltage, make it is in the conductive state between the collector and emitter of transistor Q1, and then to the third of driving chip U2
Input terminal sends Continuity signal, and driving chip U2 enters working condition according to Continuity signal, and according to vent valve M2 enabling signal
The second driving unit 340 is driven, the relay Z2 movement of the second driving unit 340 adds to DC voltage on vent valve M2, makes
Vent valve M2 movement, while the cooperation of diode D4 and diode D5 reduces the counter electromotive force generated when vent valve M2 movement, protects
Protection circuit device.When judgment module 200 sends high level (or low level) to drive module 300, switching diode collector
End with emitter, driving chip U2 does not work, and relay Z2 is failure to actuate, and no-voltage adds on vent valve M2, and vent valve M2 is not
Movement.
In above-described embodiment, the air pressure signal is converted to pressure information by judgment module 200, and the air pressure is believed
The size of breath and standard pressure information sends discharge/charge air valve enabling signal to drive module 300 according to comparison result, avoids
Complicated decision circuitry, it is simple to realize circuit structure, and driving signal stability is good；Drive module 300 passes through control signal
Charge valve starting is driven on state, and according to the charge valve enabling signal, or according to the vent valve enabling signal
Vent valve starting is driven, valve opening operation can eliminate counter electromotive force, make to drive the signal of valve more stable.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of valve driving circuit of launching tube characterized by comprising signal acquisition module, judgment module and driving mould
Block；
The signal acquisition module is connect with the judgment module, is acquired the air pressure signal in launching tube and is sent to and described sentences
Disconnected module；
The judgment module is suitable for connecting with external power supply, also connect with the drive module, the air pressure signal is converted to
Pressure information, and the size of the pressure information and standard pressure information are sent out according to comparison result to the drive module
Charge valve enabling signal or vent valve enabling signal are sent, while also sending control signal to the drive module；
The drive module receives control signal and enters on state, drives inner inflatable according to the charge valve enabling signal
Valve starting, or internal vent valve starting is driven according to the vent valve enabling signal.
2. the valve driving circuit of launching tube as described in claim 1, which is characterized in that the judgment module includes: signal
Input terminal, voltage end, the first signal output end, second signal output end and control terminal；
The signal input part of the judgment module is connect with the signal acquisition module, the voltage end of the judgment module be suitable for
External power supply connection, the first signal output end, second signal output end and the control terminal of the judgment module with the driving
Module connection；
The signal input part of the judgment module receives the air pressure signal, and the voltage end of the judgment module receives external power supply
First signal output end of the voltage of offer, the judgment module sends charge valve enabling signal to the drive module, described
The second signal output end of judgment module sends vent valve enabling signal, the control terminal of the judgment module to the drive module
Control signal is sent to the drive module.
3. the valve driving circuit of launching tube as claimed in claim 2, which is characterized in that the valve of the launching tube drives electricity
Road further include: provide crystal oscillator, first capacitor and the second capacitor of clock signal for the judgment module；
The input end of clock of the first end of the crystal oscillator and judgment module connects, the second end of the crystal oscillator with
The output terminal of clock of judgment module connects；
The first end of the first capacitor is connect with the first end of the crystal oscillator, the second termination of the first capacitor
Ground；
The first end of second capacitor is connect with the second end of the crystal oscillator, the second end of second capacitor and institute
State the second end connection of first capacitor.
4. the valve driving circuit of launching tube as described in any one of claims 1 to 3, which is characterized in that the drive module
It include: the first signal input part, second signal input terminal, third signal input part and voltage end；
The first signal input part, second signal input terminal and the third signal input part of the drive module with the judgement mould
Block connection, the voltage end of the drive module are suitable for connecting with external power supply；
First signal input part of the drive module receives the charge valve enabling signal；
The second signal input terminal of the drive module receives the vent valve enabling signal；
The third signal input part of the drive module receives the control signal；
The voltage end of the drive module receives the voltage that external non-transformer provides.
5. the valve driving circuit of launching tube as claimed in claim 4, which is characterized in that the drive module further include: control
Unit, signal processing unit, the first driving unit and the second driving unit processed；
Described control unit, input terminal are connect with the third signal input part of the drive module, output end and signal processing list
The third input terminal connection of member, for receiving control signal and entering on state；
The signal processing unit, first input end are connect with the first signal input part of the drive module, the second input terminal
It is connect with the second signal input terminal of the drive module, the signal input part of the first output end and first driving unit connects
It connects, second output terminal is connect with the signal input part of second driving unit, for receiving the charge valve enabling signal simultaneously
Inflation pulse signal is sent to first driving unit, or receives the vent valve enabling signal and is driven to described second single
Member sends deflation pulse signal；
First driving unit drives the starting of inner inflatable valve according to the inflation pulse signal；Or
Second driving unit drives internal vent valve starting according to the deflation pulse signal.
6. the valve driving circuit of launching tube as claimed in claim 5, which is characterized in that described control unit includes: logic
Door, first resistor, second resistance, third capacitor and transistor；
The first input end of the logic gate and the second input terminal are connect with the input terminal of described control unit, the logic gate
Output end connect with the first end of the first resistor；
The second end of the first resistor is connect with the base stage of the transistor；
The emitter of the transistor is grounded, and the collector of the transistor is connect with the first end of the second resistance；It is described
The first end of third capacitor is connect with the base stage of the transistor, the second end of the third capacitor and the transmitting of the transistor
Pole connection；
The second end of the second resistance and the output end of described control unit connect.
7. the valve driving circuit of launching tube as claimed in claim 5, which is characterized in that the signal processing unit includes:
Driving chip and the 4th capacitor；
The first input end of the driving chip is connect with the first input end of the signal processing unit, the driving chip
Second input terminal is connect with the second input terminal of the signal processing unit, the third input terminal and the letter of the driving chip
The third input terminal connection of number processing unit, the first of the first output end of the driving chip and the signal processing unit are defeated
Outlet connection, the second output terminal of the driving chip are connect with the second output terminal of the signal processing unit, the driving
The first ground terminal and the second ground terminal of chip are grounded, the third input terminal of the driving chip by the 4th capacitor with
The connection of second ground terminal, the first voltage end of the driving chip is connect with external power supply.
8. the valve driving circuit of launching tube as claimed in claim 7, which is characterized in that the signal processing unit also wraps
It includes: 3rd resistor and first diode；
The first input end of the driving chip is connected by the second voltage end of the 3rd resistor and driving chip, the drive
Second input terminal of dynamic chip is connect by the first diode with the second voltage end of the driving chip.
9. the valve driving circuit of launching tube as claimed in claim 5, which is characterized in that first driving unit includes
The: the second diode, the first relay, third diode and charge valve；
The anode of second diode is connect with the signal input part of first driving unit, and second diode is born
Pole is connect with external power supply；
The anode of the first end of first relay and second diode connect, the second end of first relay and
The cathode of second diode connects, and the third end of first relay is connect with the cathode of the third diode, institute
The 4th end for stating the first relay is connect with external power supply；
The plus earth of the third diode；The first end of the charge valve is connect with the cathode of the third diode, institute
The second end for stating charge valve is connect with the anode of the third diode.
10. the valve driving circuit of launching tube as claimed in claim 5, which is characterized in that second driving unit includes:
4th diode, the second relay, the 5th diode and vent valve；
The anode of 4th diode is connect with the signal input part of second driving unit, and the 4th diode is born
Pole is connect with external power supply；
The anode of the first end of second relay and the 4th diode connect, the second end of second relay and
The cathode of 4th diode connects, and the third end of second relay is connect with the cathode of the 5th diode, institute
The 4th end for stating the second relay is connect with external power supply；
The plus earth of 5th diode；The first end of the vent valve is connect with the cathode of the 5th diode, institute
The second end for stating vent valve is connect with the anode of the 5th diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811124991.9A CN108953732A (en) | 2018-09-26 | 2018-09-26 | The valve driving circuit of launching tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811124991.9A CN108953732A (en) | 2018-09-26 | 2018-09-26 | The valve driving circuit of launching tube |
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| Publication Number | Publication Date |
|---|---|
| CN108953732A true CN108953732A (en) | 2018-12-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811124991.9A Pending CN108953732A (en) | 2018-09-26 | 2018-09-26 | The valve driving circuit of launching tube |
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| CN (1) | CN108953732A (en) |
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