CN105119579A - Servo valve amplifier - Google Patents
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- CN105119579A CN105119579A CN201510569770.2A CN201510569770A CN105119579A CN 105119579 A CN105119579 A CN 105119579A CN 201510569770 A CN201510569770 A CN 201510569770A CN 105119579 A CN105119579 A CN 105119579A
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Abstract
This invention discloses a servo valve amplifier. The servo valve amplifier firstly receives control analog voltage signals of a real-time controller; with the support of a voltage regulator module, the errors of the control analog voltage signals are firstly reduced in the manner of differential input; after being superposed, differential signals and vibration signals generated by a vibration signal generating circuit are input into a current pump module after being inverted by an inverter module; at last, according to the value of input signals, the voltage signals are transformed into current signals with constant output in a preset enlarging scale by the current pump module; the current signals are not affected by the load; thus, the current signals are output to control an electro-hydraulic servo valve. The amplifier of the invention has the characteristics of reliability, high sensitivity and capability of reducing slow response of the servo valve when controlling the electro-hydraulic servo valve.
Description
Technical field
The present invention relates to technical field of electrohydraulic servo valve control, particularly relate to a kind of servo valve amplifier be applied in wearable assistance exoskeleton lower limb electrohydraulic servo-controlling system.
Background technology
Servo valve amplifier is driving, the control nonshared control unit of electrohydraulic servo valve.Servo amplifier effect is compared by input instruction signal (voltage) homologous ray feedback signal (voltage), to amplify and after computing, export one with the proportional control electric current of deviation voltage signal to Servo-Valve Torque Motor control coil, control valve core of servo valve aperture size.And by adopting various hydraulic test and measuring transducer to form the electrohydraulic servo system controlled physical quantitys such as position, speed, acceleration, power, as: valve control oil cylinder, valve-controlled motor, valve controlled pump etc.
It is conventional that servo valve amplifier has instruction and signal input circuit, return to zero the modules such as biasing circuit, pre-amplification circuit, current-limiting circuit, power amplification circuit, generally there is following shortcoming:
1) because the Coulomb friction power of valve affects, easily there is the phenomenon of spool clamping stagnation in conventional servo valve amplifier.
2) error interference is large, causes the resolution of Controlled valve lower.
3) drift phenomenon is obvious, and poor stability is high to environmental requirement, is not suitable for outwork.
4) fast response time but overshoot is generally bigger than normal, is difficult to meet real-time demand.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, provide a kind of servo valve amplifier, this amplifier circuit, in the control of electrohydraulic servo valve, has the features such as reliable, high sensitivity, minimizing servo valve card pause.
In order to achieve the above object, the technical solution adopted in the present invention is as follows: a kind of servo valve amplifier, described servo valve amplifier is for connecting real-time controller and electrohydraulic servo valve, and it comprises Voltage stabilizing module, driver module, vibrating signal generation module and input/output module; Wherein,
Described Voltage stabilizing module comprises nonpolar electric capacity C1, C2, C3, C4, C5, C6, C7, C8, C12, C16, polar capacitor C11, C15, C17, Zener diode regulator D3, D4, D5, light-emitting diode D6, D7, resistance R24, R25; Wherein, one end of nonpolar electric capacity C1, C2, C3, C4 all inputs+15V with outside with the negative pole of Zener diode regulator D3 and is connected, one end of the other end of nonpolar electric capacity C1, C2, C3, C4, the positive pole of Zener diode regulator D3, nonpolar electric capacity C5, C6, C7, C8 and the equal ground connection of negative pole of Zener diode regulator D4; The other end of nonpolar electric capacity C5, C6, C7, C8 all inputs-15V with outside with the positive pole of Zener diode regulator D4 and is connected; The positive pole of the positive pole of polar capacitor C11, one end of nonpolar electric capacity C12, polar capacitor C17, the negative pole of Zener diode regulator D5 input+15V with outside after being connected and are connected; The negative pole of polar capacitor C15, C17, one end of nonpolar electric capacity C16, Zener diode regulator D5 negative pole inputs-15V with outside after being connected and is connected; The equal ground connection of the other end of the negative pole of polar capacitor C11, the positive pole of polar capacitor C15, nonpolar electric capacity C12, C16; One end and the outside of resistance R24 input+15V and are connected, and the other end is connected with the positive pole of light-emitting diode D7; One end and the outside of resistance R25 input-15V and are connected, and the other end is connected with the negative pole of light-emitting diode D6; The negative pole of light-emitting diode D7 and the equal ground connection of positive pole of light-emitting diode D6;
Described driver module circuit comprises Differential Input module, biased and flutter input module, inverter modules, current pump module and TVS transient state voltage-stabiliser tube module; Wherein, described Differential Input module comprises resistance R14, R17, R21, R11, operational amplifier A R3; Wherein, one end of resistance R14 is connected with the negative input of operational amplifier A R3 after being connected with one end of resistance R11; The other end of resistance R11 is connected with the output of operational amplifier A R3; Be connected with the electrode input end of operational amplifier A R3 after one end of resistance R17 is connected with one end of resistance R21; The other end ground connection of resistance R21; First power input of operational amplifier A R3 and second source input meet outside input+15V and-15V respectively; Described being biased comprises resistance R1, R3, R8, R9, slide rheostat R2, R10 with flutter input module; Wherein, one end of resistance R8 is connected with one end of slide rheostat R10; Outside input-the 15V of one termination of resistance R1, the other end is connected with one end of the resistance wire of slide rheostat R2; The other end of the resistance wire of slide rheostat R2 is connected with one end of resistance R3; The other end and the outside of resistance R3 input+15V and are connected; The sliding end of slide rheostat R2 is connected with one end of resistance R9; Described inverter modules comprises resistance R16, R13, operational amplifier A R5; Wherein, one end of resistance R13 is connected with the negative input of operational amplifier A R5, the electrode input end ground connection of operational amplifier A R5; The other end of resistance R13 is connected with the output of operational amplifier A R5; First power input of operational amplifier A R5 and second source input connect outside input+15V and-15V terminal respectively; The output of operational amplifier A R3 is connected with one end of resistance R16; The negative input of operational amplifier A R5, the other end of resistance R16, the other end of slide rheostat R10 and the other end of resistance R9 are connected in a bit; Described current pump module comprises resistance R12, R6, R18, R19, R15, slide rheostat R7, R20, diode D1, D2 and operational amplifier A R2; Wherein, one end ground connection of resistance R12, the other end accesses the negative input of operational amplifier A R2 after being connected with one end of resistance R6; The other end of resistance R6 is connected with one end of slide rheostat R7; One end of resistance R18 is connected with the output of operational amplifier A R5, and the other end accesses the electrode input end of operational amplifier A R2 after being connected with one end of resistance R19; The other end of resistance R19 is connected with one end of the resistance wire of slide rheostat R20, and the other end of the resistance wire of slide rheostat R20 is connected with one end of resistance R15; The output of operational amplifier A R2 is accessed after the other end of resistance R15 is connected with the other end of slide rheostat R7; First power input of operational amplifier A R2 and second source input meet outside input+15V and-15V respectively; The sliding end of slide rheostat R20 is connected with the positive pole of diode D1; The negative pole of diode D1 is connected with the negative pole of diode D2; The plus earth of diode D2; Described TVS transient state voltage-stabiliser tube module comprises voltage-stabiliser tube TVS2, TVS4, TVS5; Wherein, a pole of voltage-stabiliser tube TVS2 is connected with the other end of resistance R8, and a pole of voltage-stabiliser tube TVS4 is connected with the other end of resistance R14, and a pole of voltage-stabiliser tube TVS5 is connected with the other end of resistance R17, another extremely equal ground connection of voltage-stabiliser tube TVS2, TVS4, TVS5;
Described vibrating signal generation modular circuit comprises power filtering module, generator module; Described power filtering module comprises electric capacity C10 and C14; Wherein, electric capacity C10 one end and outside input+15V and are connected, ground connection after the other end is connected with one end of electric capacity C14; The other end and the outside of electric capacity C14 input-15V and are connected; Described generator module comprises resistance R22, R28, R29, R26, slide rheostat R23, R27, electric capacity C9, C13, operational amplifier A R6, AR7; Wherein, one end ground connection of electric capacity C9, the other end connects the negative input of operational amplifier A R7 after being connected with one end of resistance R22; The other end of resistance R22 is connected with one end of slide rheostat R23; One end ground connection of resistance R28, the other end accesses the electrode input end of operational amplifier A R7 after being connected with one end of resistance R29; First power input of operational amplifier A R7 and second source input meet outside input+15V and-15V respectively; The other end of the other end of slide rheostat R23, one end of resistance R26, resistance R29 is all connected with the output of operational amplifier A R7; The other end of resistance R26, one end of the resistance wire of slide rheostat R27 and one end of electric capacity C13 are connected in a bit; The equal ground connection of the other end of the other end of electric capacity C13 and the resistance wire of slide rheostat R27; The sliding end of slide rheostat R27 is connected with the electrode input end mouth of operational amplifier A R6; The negative input mouth of operational amplifier A R6 and output port short circuit; The output port of operational amplifier A R6 is connected with the other end of resistance R8;
Described input/output module comprises signal input wires terminal P1, output current binding post P2, power supply input wires terminal P3; Wherein, the other end of the electrode input end mouth connecting resistance R17 of signal input wires terminal P1, the other end of negative input mouth connecting resistance R14, grounding ports ground connection; The output port of output current binding post P2 connects the common port of the sliding end of the slide rheostat R20 of current pump module and the positive pole of diode D1, grounding ports ground connection; The positive pole port of power supply input wires terminal P3 meets outside input+15V, grounding ports ground connection, and negative pole port meets outside input-15V;
Real-time controller two control simulation voltage signal output end mouths be connected with negative input mouth with the electrode input end mouth of signal input wires terminal P1; The current input terminal mouth of electrohydraulic servo valve is connected with the output port of output current binding post P2.
Compared with prior art, the invention has the beneficial effects as follows:
1) resolution of servo valve is improve by high frequency vibrating signal.
2) the spool catching phenomenon because Coulomb friction power causes effectively is prevented.
3) modes such as low drift precision operational-amplifier chip are utilized effectively to reduce zero drift phenomenon
4) the comparatively adverse circumstances such as outwork, thunderstorm weather are adapted to.
5) the servo amplifier linearity is good, fast response time, overshoot are moderate, substantially meets real-time demand for control.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of servo valve amplifier Voltage stabilizing module of the present invention;
Fig. 2 is the circuit diagram of servo valve amplifier driver module of the present invention;
Fig. 3 is the circuit diagram of servo valve amplifier vibrating signal generation module of the present invention;
Fig. 4 is the circuit diagram of servo valve amplifier input/output module of the present invention;
Embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated.
A kind of servo valve amplifier of the present invention, this servo valve amplifier is for connecting real-time controller and electrohydraulic servo valve, and it comprises: Voltage stabilizing module, driver module, vibrating signal generation module and input/output module;
As described in Figure 1, Voltage stabilizing module comprises nonpolar electric capacity C1, C2, C3, C4, C5, C6, C7, C8, C12, C16, polar capacitor C11, C15, C17, Zener diode regulator D3, D4, D5, light-emitting diode D6, D7, resistance R24, R25; Wherein, one end of nonpolar electric capacity C1, C2, C3, C4 all inputs+15V with outside with the negative pole of Zener diode regulator D3 and is connected, one end of the other end of nonpolar electric capacity C1, C2, C3, C4, the positive pole of Zener diode regulator D3, nonpolar electric capacity C5, C6, C7, C8 and the equal ground connection of negative pole of Zener diode regulator D4; The other end of nonpolar electric capacity C5, C6, C7, C8 all inputs-15V with outside with the positive pole of Zener diode regulator D4 and is connected; The positive pole of the positive pole of polar capacitor C11, one end of nonpolar electric capacity C12, polar capacitor C17, the negative pole of Zener diode regulator D5 input+15V with outside after being connected and are connected; The negative pole of polar capacitor C15, C17, one end of nonpolar electric capacity C16, Zener diode regulator D5 negative pole inputs-15V with outside after being connected and is connected; The equal ground connection of the other end of the negative pole of polar capacitor C11, the positive pole of polar capacitor C15, nonpolar electric capacity C12, C16; One end and the outside of resistance R24 input+15V and are connected, and the other end is connected with the positive pole of light-emitting diode D7; One end and the outside of resistance R25 input-15V and are connected, and the other end is connected with the negative pole of light-emitting diode D6; The negative pole of light-emitting diode D7 and the equal ground connection of positive pole of light-emitting diode D6;
As shown in Figure 2, driver module circuit comprises Differential Input module, biased and flutter input module, inverter modules, current pump module and TVS transient state voltage-stabiliser tube module; Wherein, Differential Input module output signal and biased and flutter input module output signals in parallelly connects with inverter modules afterwards, inverter modules again with current pump block coupled in series, obtain output current IO, output current IO outputs to electrohydraulic servo valve as control signal as current analog signal;
Described Differential Input module comprises resistance R14, R17, R21, R11, operational amplifier A R3; Wherein, one end of resistance R14 is connected with the negative input (port 2) of operational amplifier A R3 after being connected with one end of resistance R11; The other end of resistance R11 is connected with the output (port 6) of operational amplifier A R3; Be connected with the electrode input end (port 3) of operational amplifier A R3 after one end of resistance R17 is connected with one end of resistance R21; The other end ground connection of resistance R21; First power input (port 7) of operational amplifier A R3 and second source input (port 4) meet outside input+15V and-15V respectively;
Described being biased comprises resistance R1, R3, R8, R9, slide rheostat R2, R10 with flutter input module; Wherein, one end of resistance R8 is connected with one end of slide rheostat R10; Outside input-the 15V of one termination of resistance R1, the other end is connected with one end of the resistance wire of slide rheostat R2; The other end of the resistance wire of slide rheostat R2 is connected with one end of resistance R3; The other end and the outside of resistance R3 input+15V and are connected; The sliding end of slide rheostat R2 is connected with one end of resistance R9;
Described inverter modules comprises resistance R16, R13, operational amplifier A R5; Wherein, one end of resistance R13 is connected with the negative input (port 2) of operational amplifier A R5, electrode input end (port 3) ground connection of operational amplifier A R5; The other end of resistance R13 is connected with the output (port 6) of operational amplifier A R5; First power input (port 7) of operational amplifier A R5 and second source input (port 4) connect outside input+15V and-15V terminal respectively; The output (port 6) of operational amplifier A R3 is connected with one end of resistance R16; The other end of the negative input (port 2) of operational amplifier A R5, the other end of resistance R16, the other end of slide rheostat R10 and resistance R9 is connected in a bit;
Described current pump module comprises resistance R12, R6, R18, R19, R15, slide rheostat R7, R20, diode D1, D2 and operational amplifier A R2; Wherein, one end ground connection of resistance R12, the other end accesses the negative input (port 2) of operational amplifier A R2 after being connected with one end of resistance R6; The other end of resistance R6 is connected with one end of slide rheostat R7; One end of resistance R18 is connected with the output (port 6) of operational amplifier A R5, and the other end accesses the electrode input end (port 3) of operational amplifier A R2 after being connected with one end of resistance R19; The other end of resistance R19 is connected with one end of the resistance wire of slide rheostat R20, and the other end of the resistance wire of slide rheostat R20 is connected with one end of resistance R15; The output (port 6) of operational amplifier A R2 is accessed after the other end of resistance R15 is connected with the other end of slide rheostat R7; First power input (port 7) of operational amplifier A R2 and second source input (port 4) meet outside input+15V and-15V respectively; The sliding end of slide rheostat R20 is connected with the positive pole of diode D1, their common port output signal output IO; The negative pole of diode D1 is connected with the negative pole of diode D2; The plus earth of diode D2;
Described TVS transient state voltage-stabiliser tube module comprises voltage-stabiliser tube TVS2, TVS4, TVS5; Wherein, a pole of voltage-stabiliser tube TVS2 is connected with the other end of resistance R8, and a pole of voltage-stabiliser tube TVS4 is connected with the other end of resistance R14, and a pole of voltage-stabiliser tube TVS5 is connected with the other end of resistance R17, another extremely equal ground connection of voltage-stabiliser tube TVS2, TVS4, TVS5;
As shown in Figure 3, vibrating signal generation modular circuit comprises power filtering module, generator module; Two intermodules are in parallel;
Described power filtering module comprises electric capacity C10 and C14; Wherein, electric capacity C10 one end and outside input+15V and are connected, ground connection after the other end is connected with one end of electric capacity C14; The other end and the outside of electric capacity C14 input-15V and are connected;
Described generator module comprises resistance R22, R28, R29, R26, slide rheostat R23, R27, electric capacity C9, C13, operational amplifier A R6, AR7; Wherein, one end ground connection of electric capacity C9, the other end connects the negative input (port 2) of operational amplifier A R7 after being connected with one end of resistance R22; The other end of resistance R22 is connected with one end of slide rheostat R23; One end ground connection of resistance R28, the other end accesses the electrode input end (port 3) of operational amplifier A R7 after being connected with one end of resistance R29; First power input (port 7) of operational amplifier A R7 and second source input (port 4) meet outside input+15V and-15V respectively; The other end of the other end of slide rheostat R23, one end of resistance R26, resistance R29 is all connected with the output (port 6) of operational amplifier A R7; The other end of resistance R26, one end of the resistance wire of slide rheostat R27 and one end of electric capacity C13 are connected in a bit; The equal ground connection of the other end of the other end of electric capacity C13 and the resistance wire of slide rheostat R27; The sliding end of slide rheostat R27 is connected with the electrode input end mouth (port 3) of operational amplifier A R6; Negative input mouth (port 2) and output port (port 6) short circuit of operational amplifier A R6; The output port (port 6) of operational amplifier A R6 exports vibrating signal DitherOutput; The output port (port 6) of operational amplifier A R6 is connected with the other end of resistance R8;
As shown in Figure 4, input/output module comprises signal input wires terminal P1, output current binding post P2, power supply input wires terminal P3; Wherein, the other end of the electrode input end mouth connecting resistance R17 of signal input wires terminal P1, the other end of negative input mouth connecting resistance R14, grounding ports ground connection; The output port of output current binding post P2 connects the common port of the sliding end of the slide rheostat R20 of current pump module and the positive pole of diode D1, grounding ports ground connection; The positive pole port of power supply input wires terminal P3 meets outside input+15V, grounding ports ground connection, and negative pole port meets outside input-15V;
Real-time controller two control simulation voltage signal output end mouths be connected with negative input mouth with the electrode input end mouth of signal input wires terminal P1; The current input terminal mouth of electrohydraulic servo valve is connected with the output port of output current binding post P2.
The operation principle of servo amplifier circuit: servo amplifier is in actual condition, and the generator module self-excitation of vibrating signal generation module produces and exports vibrating signal DirtherOutput; Two analog voltage signals of real-time controller respectively with the electrode input end mouth of signal input wires terminal P1 with negative input mouth be connected, real-time controller sends analog voltage signal IN+ and IN-to driver module, and analog voltage signal IN+ and IN-suppresses common-mode signal by Differential Input module thus reduce error; Current pump module is input to after anti-phase by inverter modules after differential signal after improvement superposes with vibrating signal; Current pump module is according to the size of input signal, by the magnification ratio that slide rheostat R7 and R20 controls, voltage signal is converted into export constant and not by the current signal IO of load effect, the constant current signal IO exported controls electrohydraulic servo valve, finally realize high sensitivity, low error, reliable servo amplifies driving effect.
Claims (1)
1. a servo valve amplifier, described servo valve amplifier, for connecting real-time controller and electrohydraulic servo valve, is characterized in that, comprises Voltage stabilizing module, driver module, vibrating signal generation module and input/output module; Wherein,
Described Voltage stabilizing module comprises nonpolar electric capacity C1, C2, C3, C4, C5, C6, C7, C8, C12, C16, polar capacitor C11, C15, C17, Zener diode regulator D3, D4, D5, light-emitting diode D6, D7, resistance R24, R25; Wherein, one end of nonpolar electric capacity C1, C2, C3, C4 all inputs+15V with outside with the negative pole of Zener diode regulator D3 and is connected, one end of the other end of nonpolar electric capacity C1, C2, C3, C4, the positive pole of Zener diode regulator D3, nonpolar electric capacity C5, C6, C7, C8 and the equal ground connection of negative pole of Zener diode regulator D4; The other end of nonpolar electric capacity C5, C6, C7, C8 all inputs-15V with outside with the positive pole of Zener diode regulator D4 and is connected; The positive pole of the positive pole of polar capacitor C11, one end of nonpolar electric capacity C12, polar capacitor C17, the negative pole of Zener diode regulator D5 input+15V with outside after being connected and are connected; The negative pole of polar capacitor C15, C17, one end of nonpolar electric capacity C16, Zener diode regulator D5 negative pole inputs-15V with outside after being connected and is connected; The equal ground connection of the other end of the negative pole of polar capacitor C11, the positive pole of polar capacitor C15, nonpolar electric capacity C12, C16; One end and the outside of resistance R24 input+15V and are connected, and the other end is connected with the positive pole of light-emitting diode D7; One end and the outside of resistance R25 input-15V and are connected, and the other end is connected with the negative pole of light-emitting diode D6; The negative pole of light-emitting diode D7 and the equal ground connection of positive pole of light-emitting diode D6;
Described driver module circuit comprises Differential Input module, biased and flutter input module, inverter modules, current pump module and TVS transient state voltage-stabiliser tube module; Wherein, described Differential Input module comprises resistance R14, R17, R21, R11, operational amplifier A R3; Wherein, one end of resistance R14 is connected with the negative input of operational amplifier A R3 after being connected with one end of resistance R11; The other end of resistance R11 is connected with the output of operational amplifier A R3; Be connected with the electrode input end of operational amplifier A R3 after one end of resistance R17 is connected with one end of resistance R21; The other end ground connection of resistance R21; First power input of operational amplifier A R3 and second source input meet outside input+15V and-15V respectively; Described being biased comprises resistance R1, R3, R8, R9, slide rheostat R2, R10 with flutter input module; Wherein, one end of resistance R8 is connected with one end of slide rheostat R10; Outside input-the 15V of one termination of resistance R1, the other end is connected with one end of the resistance wire of slide rheostat R2; The other end of the resistance wire of slide rheostat R2 is connected with one end of resistance R3; The other end and the outside of resistance R3 input+15V and are connected; The sliding end of slide rheostat R2 is connected with one end of resistance R9; Described inverter modules comprises resistance R16, R13, operational amplifier A R5; Wherein, one end of resistance R13 is connected with the negative input of operational amplifier A R5, the electrode input end ground connection of operational amplifier A R5; The other end of resistance R13 is connected with the output of operational amplifier A R5; First power input of operational amplifier A R5 and second source input connect outside input+15V and-15V terminal respectively; The output of operational amplifier A R3 is connected with one end of resistance R16; The negative input of operational amplifier A R5, the other end of resistance R16, the other end of slide rheostat R10 and the other end of resistance R9 are connected in a bit; Described current pump module comprises resistance R12, R6, R18, R19, R15, slide rheostat R7, R20, diode D1, D2 and operational amplifier A R2; Wherein, one end ground connection of resistance R12, the other end accesses the negative input of operational amplifier A R2 after being connected with one end of resistance R6; The other end of resistance R6 is connected with one end of slide rheostat R7; One end of resistance R18 is connected with the output of operational amplifier A R5, and the other end accesses the electrode input end of operational amplifier A R2 after being connected with one end of resistance R19; The other end of resistance R19 is connected with one end of the resistance wire of slide rheostat R20, and the other end of the resistance wire of slide rheostat R20 is connected with one end of resistance R15; The output of operational amplifier A R2 is accessed after the other end of resistance R15 is connected with the other end of slide rheostat R7; First power input of operational amplifier A R2 and second source input meet outside input+15V and-15V respectively; The sliding end of slide rheostat R20 is connected with the positive pole of diode D1; The negative pole of diode D1 is connected with the negative pole of diode D2; The plus earth of diode D2; Described TVS transient state voltage-stabiliser tube module comprises voltage-stabiliser tube TVS2, TVS4, TVS5; Wherein, a pole of voltage-stabiliser tube TVS2 is connected with the other end of resistance R8, and a pole of voltage-stabiliser tube TVS4 is connected with the other end of resistance R14, and a pole of voltage-stabiliser tube TVS5 is connected with the other end of resistance R17, another extremely equal ground connection of voltage-stabiliser tube TVS2, TVS4, TVS5;
Described vibrating signal generation modular circuit comprises power filtering module, generator module; Described power filtering module comprises electric capacity C10 and C14; Wherein, electric capacity C10 one end and outside input+15V and are connected, ground connection after the other end is connected with one end of electric capacity C14; The other end and the outside of electric capacity C14 input-15V and are connected; Described generator module comprises resistance R22, R28, R29, R26, slide rheostat R23, R27, electric capacity C9, C13, operational amplifier A R6, AR7; Wherein, one end ground connection of electric capacity C9, the other end connects the negative input of operational amplifier A R7 after being connected with one end of resistance R22; The other end of resistance R22 is connected with one end of slide rheostat R23; One end ground connection of resistance R28, the other end accesses the electrode input end of operational amplifier A R7 after being connected with one end of resistance R29; First power input of operational amplifier A R7 and second source input meet outside input+15V and-15V respectively; The other end of the other end of slide rheostat R23, one end of resistance R26, resistance R29 is all connected with the output of operational amplifier A R7; The other end of resistance R26, one end of the resistance wire of slide rheostat R27 and one end of electric capacity C13 are connected in a bit; The equal ground connection of the other end of the other end of electric capacity C13 and the resistance wire of slide rheostat R27; The sliding end of slide rheostat R27 is connected with the electrode input end mouth of operational amplifier A R6; The negative input mouth of operational amplifier A R6 and output port short circuit; The output port of operational amplifier A R6 is connected with the other end of resistance R8;
Described input/output module comprises signal input wires terminal P1, output current binding post P2, power supply input wires terminal P3; Wherein, the other end of the electrode input end mouth connecting resistance R17 of signal input wires terminal P1, the other end of negative input mouth connecting resistance R14, grounding ports ground connection; The output port of output current binding post P2 connects the common port of the sliding end of the slide rheostat R20 of current pump module and the positive pole of diode D1, grounding ports ground connection; The positive pole port of power supply input wires terminal P3 meets outside input+15V, grounding ports ground connection, and negative pole port meets outside input-15V;
Real-time controller two control simulation voltage signal output end mouths be connected with negative input mouth with the electrode input end mouth of signal input wires terminal P1; The current input terminal mouth of electrohydraulic servo valve is connected with the output port of output current binding post P2.
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| CN201510569770.2A CN105119579B (en) | 2015-09-09 | 2015-09-09 | Servo valve amplifier |
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| CN201510569770.2A CN105119579B (en) | 2015-09-09 | 2015-09-09 | Servo valve amplifier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807677A (en) * | 2017-11-01 | 2018-03-16 | 中色科技股份有限公司 | Uncoiling or coiling machine centering control system |
| CN113960942A (en) * | 2021-09-18 | 2022-01-21 | 中国航发南方工业有限公司 | Servo valve control circuit, method and device based on feedforward compensation and flutter compensation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020020166A1 (en) * | 2000-05-31 | 2002-02-21 | Hitachi, Ltd. | Control system for servo valve and control method therefor, and combined-cycle electric-power generating plant and gas turbine plant |
| US20020178825A1 (en) * | 2001-05-29 | 2002-12-05 | Honeywell. Inc. | Apparatus and method for verifying the dynamic stiffness capability of hydraulic servo actuators |
| CN101245796A (en) * | 2008-03-26 | 2008-08-20 | 中色科技股份有限公司 | Driving circuit of servo valve |
| CN204465468U (en) * | 2014-08-18 | 2015-07-08 | 上海科鑫液压股份有限公司 | Servo amplifier |
-
2015
- 2015-09-09 CN CN201510569770.2A patent/CN105119579B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020020166A1 (en) * | 2000-05-31 | 2002-02-21 | Hitachi, Ltd. | Control system for servo valve and control method therefor, and combined-cycle electric-power generating plant and gas turbine plant |
| US20020178825A1 (en) * | 2001-05-29 | 2002-12-05 | Honeywell. Inc. | Apparatus and method for verifying the dynamic stiffness capability of hydraulic servo actuators |
| CN101245796A (en) * | 2008-03-26 | 2008-08-20 | 中色科技股份有限公司 | Driving circuit of servo valve |
| CN204465468U (en) * | 2014-08-18 | 2015-07-08 | 上海科鑫液压股份有限公司 | Servo amplifier |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807677A (en) * | 2017-11-01 | 2018-03-16 | 中色科技股份有限公司 | Uncoiling or coiling machine centering control system |
| CN107807677B (en) * | 2017-11-01 | 2024-03-19 | 中色科技股份有限公司 | Centering control system for uncoiling or coiling machine |
| CN113960942A (en) * | 2021-09-18 | 2022-01-21 | 中国航发南方工业有限公司 | Servo valve control circuit, method and device based on feedforward compensation and flutter compensation |
| CN113960942B (en) * | 2021-09-18 | 2024-03-12 | 中国航发南方工业有限公司 | Servo valve control circuit, method and device based on feedforward compensation and flutter compensation |
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| CN105119579B (en) | 2018-06-22 |
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