CN2517170Y - Electronic machine controller given signal control device - Google Patents
Electronic machine controller given signal control device Download PDFInfo
- Publication number
- CN2517170Y CN2517170Y CN01274680U CN01274680U CN2517170Y CN 2517170 Y CN2517170 Y CN 2517170Y CN 01274680 U CN01274680 U CN 01274680U CN 01274680 U CN01274680 U CN 01274680U CN 2517170 Y CN2517170 Y CN 2517170Y
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- operational amplifier
- circuit
- resistance
- input
- signal
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Abstract
The utility model relates to a set signal control device for motor controllers, which suitable for the regulation and control of the speed set signals of the driving system of electrically driven vehicles, the set signals of the motor speed and the torque control of production machineries and other situations; the device comprises a differential transformer B and a signal regulator; the signal regulator comprises: (1) a input signal rectifier and filter circuit comprising a diode D and a filtering capacitor C; (2) a pre input signal amplification circuit comprising an operational amplifier F1, two resistances R1 and R2, and two trimming potentiometers RP1 and RP2; (3) an inverse following snubber circuit comprising an operational amplifier F2 and three resistances R3, R4 and R5. The device solves the problem that, the stroke, the starting point and the end point of the differential transformer can be determined randomly; only certain parameters of the circuit need to be adjusted, then linear regulation and control can be made from zero the maximum set signal to the corresponding starting point and end point of the set signals. The utility model has the advantages of flexibility, simplicity, convenience, economy and practicality.
Description
One, technical field
The utility model relates to a kind of given signalling of input of electric machine controller, is applicable to the velocity setting Signal Regulation control of motor vehicle drive system, and occasions such as given signal are controlled in motor speed, the torque of manufacturing machine.
Two, background technology
Usually, the motor controller controls signal is undertaken given by potentiometer or keyboard.But in some occasion, with the given inconvenience of keyboard, as driver for vehicle.And wear and tear with the given existence of potentiometer, the life-span is low, the shortcoming of poor reliability.When adopting differential transformer, because the output signal of differential transformer is not necessarily since zero point, its stroke is fixing in actual installation is used, and gives to install and use and brought certain restriction and inconvenience.
Three, Fa Ming content
The utility model designs a kind of circuit for signal conditioning, forms the given signal control device of electric machine controller with differential transformer.Stroke, starting point, the terminal point of differential transformer can arbitrarily be determined, only need some parameter of regulating circuit, just can reach and make corresponding starting point of given signal and terminal point, carry out linear regulation from zero to the given signal of maximum and control.
The given signal control device of electric machine controller described in the utility model comprises: differential transformer and signal conditioner is characterized in that: signal conditioner comprises: the input signal current rectifying and wave filtering circuit that (1) is made up of diode and filter capacitor; (2) form preposition input signal amplifying circuit by operational amplifier and two resistance and two trimmer potentiometers; (3) oppositely follow buffer circuit by what operational amplifier and three resistance were formed.
As long as within maximum travel limit, this circuit no matter the stroke of differential transformer in what scope, from what starting point, only need to regulate trimmer potentiometer, just can realize given signal from zero to peaked linear regulation and control, reduce the requirement that differential transformer machinery is installed, made things convenient for control.Simultaneously, this circuit uses flexibly, and is simple and convenient, economical and practical.
Four, description of drawings
The given signal control device circuit theory diagrams of Fig. 1 electric machine controller
Five, embodiment
The given signal control device of this electric machine controller (Fig. 1) is made up of differential transformer B and signal conditioner, and its signal conditioner comprises: the input signal current rectifying and wave filtering circuit that (1) is made up of diode D and filter capacitor C.(2) form preposition input signal amplifying circuit by operational amplifier F1 and resistance R 1, R2 and trimmer potentiometer RP1, RP2.(3) oppositely follow buffer circuit by what operational amplifier F2 and resistance R 3, R4, R5 formed.Constitute the connection between the given signal control device components and parts of electric machine controller:
Differential transformer B has two end points to connect signal source in the signal feeding device, and one in other two end points is just meeting diode D, and one meets filtering capacitor C and bears.
In the input signal current rectifying and wave filtering circuit, the positive ends of diode D links to each other with the secondary of differential transformer B, the negative terminal of diode D links to each other with the input resistance R1 of preposition input signal amplifying circuit, simultaneously, the positive pole of filter capacitor C links to each other with the negative terminal of diode D, the negative pole of filter capacitor C connects another secondary of differential transformer B, parallelled circuit ground;
In the preposition input signal amplifying circuit, the negative terminal of the termination D of input resistance R1, the other end links to each other with the inverting input (-) of operational amplifier F1; The in-phase input end (+) of one termination operational amplifier of resistance R 2, the moving contact terminals of another termination trimmer potentiometer RP1, the other two ends one termination positive supply of trimmer potentiometer RP1 (+E), a termination circuit is on the ground; The moving contact of trimmer potentiometer RP2 is connected with the output of operational amplifier F1 with after the end of self is connected, and the other end of PR2 is connected with the inverting input of operational amplifier F1; The output of operational amplifier F1 is connected on the end of operational amplifier F2 input resistance R3.
Oppositely follow in the buffer circuit, the output of a termination F2 of resistance R 3, the other end links to each other with the inverting input (-) of operational amplifier F2; Resistance R 5 links to each other with the in-phase input end (+) of operational amplifier F2, other termination circuit ground, and resistance R 4 one ends link to each other with inverting input (-) and the input resistance R3 of operational amplifier F2; An other end is connected with the output of operational amplifier F2, and output signal is drawn by the output of operational amplifier F2.
The utility model is to be used for electric automobile as an embodiment.The power-driven system of electric automobile is a switched reluctance motor.The velocity setting control signal is 0～5V.The selection of components and parts and parameter are in its circuit: operational amplifier adopts a slice LM324L to realize that the amplifier of other models also can; Supply voltage ± the 15V of operational amplifier.Resistance R 1～R5 is 1/4 watt of 2K Ω, and trimmer potentiometer is 1/4, and resistance is: PR1=10K Ω, RP2=47K Ω.The model of diode D is F1007, and other models also can; The capacity of filter capacitor C is 4.7 μ f/20V, and the capacity of filtering capacitor C is chosen by the frequency of input signal and the sensitivity requirement of given signal.
After connecting circuit by figure, when throttle position is in starting point, regulate RP1, making the output valve of output is 0V, then throttle position is in maximum position, regulates RP2, and the output valve that makes output is 5V.After initial adjustment finishes, when again throttle position being in starting point, regulate RP1, making the output valve of output is 0V, then throttle position is in maximum position, regulates RP2, and the output valve that makes output is 5V.Regulate several times so repeatedly, can obtain satisfied effect.
During concrete the application, replace throttle, install on request, regulate the stroke and the spring dynamics of differential transformer with differential transformer.The former limit input signal source of differential transformer is taken from the Switching Power Supply AC side of control circuit, and the rate frequency is 4KHZ, and signal amplitude is 5V.
Claims (1)
1. given signal control device of electric machine controller, this device is made up of differential transformer B and signal conditioner, and it is characterized in that: signal conditioner comprises: the input signal current rectifying and wave filtering circuit that (1) is made up of diode D and filter capacitor C; (2) form preposition input signal amplifying circuit by operational amplifier F1 and resistance R 1, R2 and trimmer potentiometer RP1, RP2; (3) oppositely follow buffer circuit by what operational amplifier F2 and resistance R 3, R4, R5 formed; Connection in the above circuit between each components and parts:
In the input signal current rectifying and wave filtering circuit, the positive ends of diode D links to each other with the secondary of differential transformer B, the negative terminal of diode D links to each other with the input resistance R1 of preposition input signal amplifying circuit, simultaneously, the positive pole of filter capacitor C links to each other with the negative terminal of diode D, the negative pole of filter capacitor C connects another secondary of differential transformer B, parallelled circuit ground;
In the preposition input signal amplifying circuit, the negative terminal of the termination D of input resistance R1, the other end links to each other with the inverting input (-) of operational amplifier F1, the in-phase input end (+) of one termination operational amplifier of resistance R 2, the moving contact terminals of another termination trimmer potentiometer RP1, the other two ends one termination positive supply of trimmer potentiometer RP1 (+E), one termination circuit on the ground, the moving contact of trimmer potentiometer RP2 is with after the end of self is connected, be connected with the output of operational amplifier F1, the other end of PR2 is connected with the inverting input of operational amplifier F1, and the output of operational amplifier F1 is connected on the end of operational amplifier F2 input resistance R3;
Oppositely follow in the buffer circuit, the output of one termination F2 of resistance R 3, the other end links to each other with the inverting input (-) of operational amplifier F2, resistance R 5 links to each other with the in-phase input end (+) of operational amplifier F2, other termination circuit ground, resistance R 4 one ends link to each other with inverting input (-) and the input resistance R3 of operational amplifier F2, and an other end is connected with the output of operational amplifier F2, and output signal is drawn by the output of operational amplifier F2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01274680U CN2517170Y (en) | 2001-12-27 | 2001-12-27 | Electronic machine controller given signal control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01274680U CN2517170Y (en) | 2001-12-27 | 2001-12-27 | Electronic machine controller given signal control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2517170Y true CN2517170Y (en) | 2002-10-16 |
Family
ID=33679259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01274680U Expired - Fee Related CN2517170Y (en) | 2001-12-27 | 2001-12-27 | Electronic machine controller given signal control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2517170Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101273684B (en) * | 2007-03-29 | 2012-05-30 | 富士重工业株式会社 | Electric bush cutter |
| CN118074696A (en) * | 2024-04-18 | 2024-05-24 | 四川新先达测控技术有限公司 | Method and device for eliminating polar zero of nuclear signal |
-
2001
- 2001-12-27 CN CN01274680U patent/CN2517170Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101273684B (en) * | 2007-03-29 | 2012-05-30 | 富士重工业株式会社 | Electric bush cutter |
| CN118074696A (en) * | 2024-04-18 | 2024-05-24 | 四川新先达测控技术有限公司 | Method and device for eliminating polar zero of nuclear signal |
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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 |