CN2154928Y - Proportional valve electrical liquid controller - Google Patents
Proportional valve electrical liquid controller Download PDFInfo
- Publication number
- CN2154928Y CN2154928Y CN 92221649 CN92221649U CN2154928Y CN 2154928 Y CN2154928 Y CN 2154928Y CN 92221649 CN92221649 CN 92221649 CN 92221649 U CN92221649 U CN 92221649U CN 2154928 Y CN2154928 Y CN 2154928Y
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- China
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- circuit
- pin
- proportional valve
- electrical liquid
- valve electrical
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- Expired - Fee Related
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Abstract
The utility model discloses a proportional valve electrical liquid controller, which relates to the electric signal control device of a proportional electromagnet in a proportional valve. The proportional valve electrical liquid controller comprises an oscillation circuit, a power amplification circuit, a voltage-stabilizing circuit, and a feedback circuit. The oscillation circuit, the power amplification circuit, and the voltage-stabilizing circuit are controlled by an operational amplifier manifold block IC. The voltage-stabilizing circuit comprises two voltage-stabilizing manifold blocks, and is provided with a reasonable feedback circuit. The input interface of the proportional valve electrical liquid controller can be connected with a computer or a program controller. The utility model has the advantages of convenient operation, simple structure, and good load characteristic (constant current characteristic); the proportional valve electrical liquid controller has a load short-circuit protection function; the proportional valve electrical liquid controller is suitable for equipment which needs constant current control.
Description
The utility model relates to the proportional valve control device, relates in particular to the electric signal control gear of proportion electro-magnet in the Proportional valve.
The Proportional valve electrical liquid controller is to come the control ratio electromagnet by electric signal, reaches the pressure of control ratio valve, the electric apparatus control apparatus of flow.General Proportional valve electrical liquid controller is under certain mains voltage fluctuation, as AC supply voltage when 220 volts drop to 185 volts, output current value begins to descend, AC supply voltage is when 220 volts are raised to 240 volts, output current value begins to rise, and its load characteristic (being constant-current characteristics) only maintains in the narrower scope, in case break away from this scope, the current value of controller output will raise or reduce, and causes pressure flow control imbalance in the Proportional valve.The constant-current characteristics of general Proportional valve electrical liquid controller is that load impedance value changes 20%, and output current changes≤1.5%, and does not have short current protection system or short-circuit protection circuit, and it is frequent that controller is damaged.On the other hand, the circuit in the controller adopts six to eight integrated packages, and components and parts are many, complex structure.
The purpose of this utility model is to provide a kind of easy to operate, simple in structure, constant-current characteristics good proportion valve electrical liquid controller, and has short-circuit protection function, and controller can be connected use with computer or programming controller.
The utility model Proportional valve electrical liquid controller is the improvement invention on the basis of the Proportional valve electrical liquid controller that original polylith integrated package is formed, it replaces the polylith integrated package with an amplifier integrated package, and designed a rational feeder loop, through amplifier integrated package computing control load electromagnet load characteristic afterwards, the power supply of amplifier integrated package and load electromagnet power supply are provided by the mu balanced circuit that includes two integrated package of pressure-stabilizing.
The utility model is a kind of proportion electro-magnet that comes the control ratio valve by electric signal, reach pilot pressure, the electrical installations of flow, its input interface can link with computer or programming controller, there is setting device inside, regulate the electric current of proportion electro-magnet and then control ratio valve by setting device.
Fig. 1 is the utility model Proportional valve current controller circuit diagram.
Among the figure: IC is the operational amplifier integrated package, is called for short the amplifier integrated package, and 14 pin are arranged on the integrated package, and being transported into integrated package 1～7 pin top is the flutter circuit; 3DG12,3DD15 forms the composite pipe of power magnification circuit; Feeder loop comprises R16, R7, and R6, R4, D1 and amplifier ic chip, W1 and R2 or input end and R1 form initialization circuit; Mu balanced circuit comprises two integrated package of pressure-stabilizing, and model is 7805,7905, and D2 is a diode, and M is load, i.e. proportion electro-magnet.
Below in conjunction with accompanying drawing the utility model is further described.
The utility model Proportional valve electrical liquid controller comprises the flutter circuit, power magnification circuit, mu balanced circuit and feeder loop.The flutter circuit comprises positive feedback vibrator circuit and the integration circuit of being made up of integrated package; Power magnification circuit is two triode 3DG12, the composite pipe that 3DD15 forms, and the composite pipe collector electrode connects the load electromagnet, emitter-base bandgap grading termination sample resistance R16, mu balanced circuit is made up of bridge rectifier and integrated package of pressure-stabilizing.Flutter circuit, power magnification circuit and feeder loop are controlled by an amplifier ic chip, and mu balanced circuit comprises two integrated package of pressure-stabilizing.The main performance index of controller is that load characteristic is a constant-current characteristics.When connecting load, promptly controller connects proportion electro-magnet, has copper loss and iron loss to produce after the electromagnet energising, makes the electromagnet heating, and then causes the resistance change of electromagnet.The utility model is provided with reasonably feeder loop, and this feeder loop comprises R16, R7, R6, R4, D1 and amplifier ic chip, and initialization circuit.R7 and R6 series connection back are in parallel with R16, and the dividing point (being R7 and R6 intermediate point) of getting R7 and R6 connects the IC12 pin.Along with the load change in resistance, feeder loop work, obtain by R16 and to flow through proportion electro-magnet M and set current signal, by input amplifier integrated package 12 pin after R7, the R6 dividing potential drop, after amplifying, exports IC by 14 pin, and import the IC9 pin again by R4 and D1 series circuit, export by 8 pin after the IC computing with the signal by initialization circuit and flutter circuit of the input IC the other end 10 pin, enter power magnification circuit 3DG12, the composite pipe base stage that 3DD15 forms, export the control ratio electromagnet by composite pipe, controller input current of electromagnet value is remained unchanged substantially.The signal of initialization circuit can comprise connect with R1 input IC10 pin or set potentiometer W1 and R2 connects and imports the IC10 pin of signal input part that extraneous computer or programming controller are set.The signal of flutter circuit is the triangular waveform of certain frequency, and it is by positive-feedback circuit, and integration circuit and regulated signal circuit are formed.Amplifier ic chip 1 pin, resistance R 14, the series connection of IC3 pin, IC3 pin, R13, IC7 pin are composed in series the positive feedback vibrator circuit; IC6,7 pin crosstalks are held C2 and are formed integration circuit; The IC1 pin, potentiometer W5, resistance R 12, the series connection of IC6 pin, IC7 pin, potentiometer W4, R11, IC10 pin are composed in series regulates the vibrating signal circuit.Flutter circuit output frequency can be in harmonious proportion the adjustable signal of triangular waveform and enter amplifier ic chip 10 pin.Power input 4 pin, 11 pin and the load electromagnet power supply of amplifier ic chip are provided by mu balanced circuit.When load short circuits, be that load resistance is 0 o'clock, because it is constant to set the signal of electric current, flow through the composite pipe of power magnification circuit, the electric current of R16 must increase greatly, but handle rapidly through the amplifier ic chip by feeder loop, the electric current that flows through the power amplifier composite pipe still remains on the numerical value of some settings.Therefore the circuit of controller has load short circuit protection function.
Working power stable of amplifier integrated package also depended in the raising of load characteristic (being constant-current characteristics).In the utility model Proportional valve electrical liquid controller, two integrated package of pressure-stabilizing have been adopted in the design of mu balanced circuit, add two integrated package of pressure-stabilizing at the output terminal of original bridge rectifier, and its model is 7805,7905, and filter capacitor, the ripple of amplifier integrated package working power is reduced, precision improves, and set power supply in making and improved precision equally, and stabilized power supply is output as 5 volts, can be complementary with general computer or programming controller interface, is convenient to the binding with them.
The utility model Proportional valve electrical liquid controller has adopted an amplifier integrated package and two integrated package of pressure-stabilizing to replace original the need to simplify circuit greatly with six to eight integrated packages, has reduced components and parts, has improved reliability of products, and easy to operate.This controller power source voltage characteristic is good simultaneously, drops to 110 volts as AC supply voltage from 220 volts, or 220 volts rise to 250 volts, and load characteristic keeps former setting value; Load resistance is when 0 is changed to 60 Europe, and the variation of output current value is less than 0.67%.The Proportional valve electrical liquid controller is applicable to the area of China's voltage ripple of power network like this, and using scope is wider, also has short-circuit protection function; And this controller also needs the equipment of constant current control applicable to other.
Claims (2)
1, a kind of Proportional valve electrical liquid controller, it comprises the flutter circuit, power magnification circuit, mu balanced circuit and feeder loop, the flutter circuit comprises positive feedback vibrator circuit and integration circuit, power magnification circuit is the composite pipe that two triodes are formed, the composite pipe collector electrode connects the load electromagnet, emitter-base bandgap grading termination sample resistance R16, mu balanced circuit is a bridge rectifier, it is characterized in that an operational amplifier ic chip is arranged in the described Proportional valve electrical liquid controller, feeder loop comprises resistance R 16, R7, R6, R4, diode D1, amplifier ic chip, and initialization circuit, R7 and R6 series connection back are in parallel with R16, get the dividing point input IC12 pin of R7 and R6, import the IC9 pin again by the output of 14 pin and by R4 and D1 series connection after IC amplifies, with the signal that comes by initialization circuit and flutter circuit of the input IC the other end 10 pin after the IC computing, the composite pipe base stage that enters power magnification circuit by the output of 8 pin; Initialization circuit is connect with a R1 input IC10 pin or set potentiometer W1 and R2 series connection input IC10 pin of signal input part; The flutter circuit is the IC1 pin, resistance R 14, the series connection of IC3 pin, the IC3 pin, R13, the IC7 pin is composed in series the positive feedback vibrator circuit, IC6,7 pin crosstalks are held C2 and are formed integration circuit, and by the IC1 pin, potentiometer W5, resistance R 12, the series connection of IC6 pin, IC7 pin, potentiometer W4, resistance R 11, IC10 pin are composed in series regulates the vibrating signal circuit; Power supply 4 pin of amplifier ic chip, 11 pin and load electromagnet power supply are provided by mu balanced circuit.
2, Proportional valve electrical liquid controller according to claim 1 is characterized in that mu balanced circuit comprises bridge rectifier and two integrated package of pressure-stabilizing that are connected on rectification circuit output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92221649 CN2154928Y (en) | 1992-11-17 | 1992-11-17 | Proportional valve electrical liquid controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92221649 CN2154928Y (en) | 1992-11-17 | 1992-11-17 | Proportional valve electrical liquid controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2154928Y true CN2154928Y (en) | 1994-02-02 |
Family
ID=33768399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92221649 Expired - Fee Related CN2154928Y (en) | 1992-11-17 | 1992-11-17 | Proportional valve electrical liquid controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2154928Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844682B (en) * | 2005-04-07 | 2010-09-29 | 费斯托股份有限两合公司 | Electrofluidic control device |
| CN101709804B (en) * | 2009-12-18 | 2012-07-04 | 浙江大学 | PWM driving circuit used for nozzle baffle plate of intelligent valve positioner |
| CN109171885A (en) * | 2018-07-20 | 2019-01-11 | 安阳市翔宇医疗设备有限责任公司 | Pistol pneumatic control system and control method in a kind of extracorporeal shock wave device |
-
1992
- 1992-11-17 CN CN 92221649 patent/CN2154928Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844682B (en) * | 2005-04-07 | 2010-09-29 | 费斯托股份有限两合公司 | Electrofluidic control device |
| CN101709804B (en) * | 2009-12-18 | 2012-07-04 | 浙江大学 | PWM driving circuit used for nozzle baffle plate of intelligent valve positioner |
| CN109171885A (en) * | 2018-07-20 | 2019-01-11 | 安阳市翔宇医疗设备有限责任公司 | Pistol pneumatic control system and control method in a kind of extracorporeal shock wave device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |