CN208638246U - A kind of stepless-adjustment nodal pattern PWM wave signal driving instrument - Google Patents
A kind of stepless-adjustment nodal pattern PWM wave signal driving instrument Download PDFInfo
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- CN208638246U CN208638246U CN201821152532.7U CN201821152532U CN208638246U CN 208638246 U CN208638246 U CN 208638246U CN 201821152532 U CN201821152532 U CN 201821152532U CN 208638246 U CN208638246 U CN 208638246U
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Abstract
The utility model discloses a kind of stepless-adjustment nodal pattern PWM wave signals, and instrument, including signal setting to be driven to measure feed circuit, 12/24V driving voltage controlling circuit, driving voltage feedback collection circuit, driving frequency output circuit, driving current output circuit with display panel, display and touch screen control circuit, governor circuit, driving signal；The signal setting is connected to display and touch screen control circuit with display panel, and the governor circuit is respectively connected to display and touch screen control circuit, driving signal measurement feed circuit, 12/24V driving voltage controlling circuit, driving voltage feedback collection circuit, driving current output circuit and driving frequency output circuit.The utility model adjustable working frequency is 50~500Hz, and adjustable current range is 0~5A, easy to operate using interactive touch-control screen, can monitor transient current in real time, and use scope covers a variety of solenoid valve brands and model both at home and abroad.
Description
Technical field
The utility model relates to PWM wave signals to drive instrument technical field, and specially a kind of stepless-adjustment nodal pattern PWM wave signal drives
Dynamic instrument.
Background technique
Currently, the test of many solenoid valve components, the PWM wave signal of use is both from vehicle-mounted ECU controller
Signal, working frequency can not be changed by ECU inner setting, lead to not be common to different experimental conditions, using very not
It is convenient.
Summary of the invention
The purpose of this utility model is to provide a kind of stepless-adjustment nodal pattern PWM wave signals to drive instrument, this stepless-adjustment nodal pattern
PWM wave signal drives instrument, and control voltage can switch between 12V or 24V, working frequency and current signal can step-less adjustment,
It solves in the prior art that working frequency can not be changed by ECU inner setting, leads to not be common to different experimental conditions,
Use very inconvenient problem.
To achieve the above object, the utility model provides the following technical solutions: a kind of stepless-adjustment nodal pattern PWM wave signal driving
Instrument, including signal setting with display panel, display and touch screen control circuit, governor circuit, driving signal measurement feed circuit,
12/24V driving voltage controlling circuit, driving voltage feedback collection circuit, driving frequency output circuit, driving current output electricity
Road；The signal setting is connected to display and touch screen control circuit with display panel, and the governor circuit is respectively connected to show
With touch screen control circuit, driving signal measurement feed circuit, 12/24V driving voltage controlling circuit, driving voltage feedback collection electricity
Road, driving current output circuit and driving frequency output circuit, the 12/24V driving voltage controlling circuit are connected to driving electricity
Feedback collection circuit, driving current output circuit are pressed, the driving voltage feedback collection circuit connection to driving current exports electricity
Road, the driving current output circuit and driving frequency output circuit are connected to driving signal measurement feed circuit.
Preferably, the driving voltage feedback collection circuit is equipped with voltage acquisition port and driving voltage output port, leads to
Overvoltage acquires the voltage value of port processing driving current output circuit, by operational amplifier, carries out analog signal processing, leads to
Overdrive voltage output port transmits sampled value to governor circuit.
Preferably, the 12/24V driving voltage controlling circuit by the voltage of DC power supply according to the signal of governor circuit,
It is adjusted to required voltage, is that driving current output circuit and driving voltage feedback collection circuit are powered, the driving current output
The current output signal of governor circuit is filtered output by circuit.
Preferably, the driving signal measurement feed circuit is equipped with driving current measurement port and feedback current data terminal
Mouthful, the measured value from driving current measurement port, by operational amplifier, simulation process passes through feedback current data port
By data feedback to governor circuit.
Preferably, the driving frequency output circuit is equipped with PWM wave frequency signal output port, the governor circuit output
Frequency signal generates the frequency signal of PWM wave to PWM wave frequency signal output port.
Preferably, the signal setting and display panel include rotary switch, electric current display screen, frequency display screen, voltage
Display screen, 12/24V switching push button, control switching push button, number increasing button, numerical value reduce button, real-time current display screen,
Real-time frequency display screen.
Preferably, the display includes that signal transmission pin, control input pin and data are transmitted with touch screen control circuit
Pin；Signal setting and display panel, the data transmission are connected to described in the signal transmission pin and control input pin
Pin is connected to governor circuit.
Preferably, the governor circuit includes display signal output pin, current signal output pin, frequency signal output
Pin, voltage adjust output pin, Voltage Feedback input signal pin, PWM wave signal feedback input pin, display and touch screen control
Circuit input signal pin processed；The display signal output pin and display are connected to touch screen control circuit input signal pin
Display and touch screen control circuit, the current signal output pin are connected to driving current output circuit, and the frequency signal is defeated
Pin is connected to driving frequency output circuit out, and the voltage adjusts output pin and is connected to 12/24V driving voltage control electricity
Road, the Voltage Feedback input signal pin are connected to driving voltage feedback collection circuit, and the PWM wave signal feed back input draws
Foot is connected to driving signal measurement feed circuit.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, the driving voltage feedback collection circuit that the utility model uses acquires the voltage value of driving current output circuit,
By operational amplifier, analog signal processing is carried out, and transmits sampled value to governor circuit, ensure that driving current output circuit
Voltage stabilization, improve signal output precision.
2,12/24V voltage control circuit and driving current output circuit that the utility model uses, by the electricity of DC power supply
At all according to the signal of governor circuit, it is adjusted to required voltage, is powered for driving current output circuit, the electric current of governor circuit is defeated
Signal is filtered output out, increases filtered signal, reduces the interference in circuit.
3, the driving signal measurement feed circuit that the utility model uses puts the measured value of driving signal by operation
Big device after simulation process, feeds back to governor circuit, and the temperature drift that can compensate for generating by environment influences, and ensure that data value just
It is really reliable.
4, the driving frequency output circuit that the utility model uses, the setting signal that governor circuit is received pass through meter
It calculates, frequency data is output in the output signal of PWM wave, the signal transmitted by this voltage value, reduce circuit damage
Consumption, improves the precision of output.
5, display and touch screen control circuit that the utility model uses, the control chip of use, processing capacity is powerful, passes through
Pull down resistor improves the stability of output voltage.
6, the governor circuit that the utility model uses, the balanced distribution of chip pin voltage, effectively controls because of voltage
The temperature drift of unbalanced generation influences.
7, a kind of stepless-adjustment nodal pattern PWM wave signal of the utility model drives instrument, and adjustable working frequency is 50~500Hz,
Adjustable current range is 0~5A, easy to operate using interactive touch-control screen, can monitor transient current in real time, use scope is covered
Cover a variety of solenoid valve brands and model both at home and abroad.
Detailed description of the invention
Fig. 1 is the schematic block circuit diagram of the utility model；
Fig. 2 is the driving voltage feedback collection circuit diagram in Fig. 1；
Fig. 3 is 12/24V driving voltage controlling circuit and driving current output circuit schematic diagram in Fig. 1；
Fig. 4 is the driving signal measurement feed circuit schematic diagram in Fig. 1；
Fig. 5 is the driving frequency output circuit schematic diagram in Fig. 1；
Fig. 6 is signal setting and display panel schematic diagram in Fig. 1；
Fig. 7 is display and touch screen control circuit schematic diagram in Fig. 1；
Fig. 8 is the governor circuit schematic diagram in Fig. 1.
In figure: 21- voltage acquisition port, 22- driving voltage output port, 31-12/24V driving voltage controlling circuit,
32- driving current output circuit, 41- driving current measurement port, 42- feedback current data port, 51-PWM frequency signal
Output port, 60- rotary switch, 61- electric current display screen, 62 frequency display screens, 63- voltage display screen, 64-12/24V switching are pressed
Button, 65- control switching push button, 66- number increasing button, 67- numerical value reduction button, 68- real-time current display screen, 69- are real-time
Frequency display screen, 71- signal transmission pin, 72- control input pin, 73- data transmission pin, 81- show that signal output is drawn
Foot, 82- current signal output pin, 83- frequency signal output pin, 84- voltage adjusting output pin, 85- Voltage Feedback are defeated
Enter signal pins, 86-PWM wave signal feedback input pin, 87- is shown and touch screen control circuit input signal pin.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8, a kind of stepless-adjustment nodal pattern PWM wave signal drives instrument,
Feed circuit, 12/ are measured including signal setting and display panel, display and touch screen control circuit, governor circuit, driving signal
24V driving voltage controlling circuit, driving voltage feedback collection circuit, driving frequency output circuit, driving current output circuit；Institute
It states signal setting and is connected to display and touch screen control circuit with display panel, the governor circuit is respectively connected to display and touch screen
Control circuit, 12/24V driving voltage controlling circuit, driving voltage feedback collection circuit, is driven driving signal measurement feed circuit
Streaming current output circuit and driving frequency output circuit, the 12/24V driving voltage controlling circuit are connected to driving voltage feedback
Acquisition Circuit, driving current output circuit, the driving voltage feedback collection circuit connection are described to driving current output circuit
Driving current output circuit and driving frequency output circuit are connected to driving signal measurement feed circuit.Stepless-adjustment nodal pattern PWM wave
Signal instrument is powered by DC power supply, and voltage is that display is fed back with touch screen control circuit, governor circuit, driving signal measurement all the way
Circuit power supply, another way voltage are the power supply of 12/24V driving voltage controlling circuit, can be switched between 12/24V.
The driving voltage feedback collection circuit is equipped with voltage acquisition port 21 and driving voltage output port 22, passes through electricity
The voltage value that pressure acquisition port 21 acquires driving current output circuit carries out analog signal processing, passes through by operational amplifier
Driving voltage output port 22 transmits sampled value to governor circuit, it is ensured that the voltage stabilization of driving current output circuit improves
The precision of signal output.
The voltage of DC power supply according to the signal of governor circuit, is adjusted to by the 12/24V driving voltage controlling circuit 31
Required voltage is that driving current output circuit 32 and driving voltage feedback collection circuit are powered, the driving current output circuit
The current output signal of governor circuit is filtered output by 32, increases filtered signal, reduces the interference in circuit.
The driving signal measurement feed circuit is equipped with driving current measurement port 41 and feedback current data port 42, comes
From the measured value of driving current measurement port 41, by operational amplifier, simulation process will by feedback current data port 42
To governor circuit, compensate for the temperature drift generated by environment influences data feedback, guarantees that number is correct reliable away from value.
The driving frequency output circuit is equipped with PWM wave frequency signal output port 51, the governor circuit output frequency
Signal generates the frequency signal of PWM wave to PWM wave frequency signal output port 51, transmits signal by voltage value, reduces
Circuit loss improves the precision of output.
Signal setting and display panel include that rotary switch 60, electric current display screen 61, frequency display screen 62, voltage are aobvious
Display screen 63,12/24V switching push button 64, control switching push button 65, number increasing button 66, numerical value reduce button 67, real-time current
Display screen 68, real-time frequency display screen 69；Rotary switch 60 is output and the pause function of control circuit, and electric current display screen 61 is
The data of electric current setting, frequency display screen 62 are the data of frequency values setting, and voltage display screen 63 is driving voltage value setting
Data.12/24V switching push button 64 is control voltage switch key, and control switching push button 65 is the button of control parameter switching setting,
Number increasing button 66 is the setting increased button of parameter, and it is the button that parameter is arranged and reduces that numerical value, which reduces button 67, in real time electricity
The real-time display value that display screen 68 shows PWM wave current data is flowed, real-time frequency display screen 69 shows the reality of PWM wave frequency data
When show value, signal setting and display panel, the space of display area can be saved, and easy to operate.
The display includes signal transmission pin 71, control input pin 72 and data transmission pin with touch screen control circuit
73；It is connected to signal setting and display panel described in the signal transmission pin 71 and control input pin 72, the data pass
Defeated pin 73 is connected to governor circuit, and the chip processing capabilities of use are powerful, improves the steady of output voltage by pull down resistor
It is qualitative.
The governor circuit includes showing that signal output pin 81, current signal output pin 82, frequency signal output are drawn
Foot 83, voltage adjust output pin 84, Voltage Feedback input signal pin 85, PWM wave signal feedback input pin 86, display with
Touch screen control circuit input signal pin 87；The display signal output pin 81 and display and touch screen control circuit input signal
Pin 87 is connected to display and touch screen control circuit, and the current signal output pin 82 is connected to driving current output circuit,
The frequency signal output pin 83 is connected to driving frequency output circuit, and the voltage adjusts output pin 84 and is connected to 12/
24V driving voltage controlling circuit, the Voltage Feedback input signal pin 85 is connected to driving voltage feedback collection circuit, described
PWM wave signal feedback input pin 86 is connected to driving signal measurement feed circuit；The balanced chip pin electricity of the governor circuit
The distribution of pressure effectively controls the temperature drift influence because of the unbalanced generation of voltage.
Working principle: parameter setting is carried out in signal setting and display panel first, presses 12/24V switching push button 64
Voltage switching is carried out, voltage value needed for determining by voltage display screen 63 carries out frequency and electric current by control switching push button 65
The switching of parameter setting, when in electric current setting, electric current display screen 61 can flash, and click control switching push button 65, just locate
In set of frequency mode, frequency display screen 62 can flash, by number increasing button 66 and number decreasing button 67 to electric current and
Frequency is configured, and is carried out data preservation by pressing control switching push button 65 after being provided with, rotary switch 60 is allocated to " defeated
Shelves out ", the signal of setting is transferred to control input pin 72, and transmits the display that pin 73 is transferred to governor circuit by data
With touch screen control circuit input signal pin 87, driving voltage feedback collection circuit passes through the acquisition of voltage acquisition port 21 driving electricity
Pressure, and logical driving voltage output port 22 is transferred to the Voltage Feedback input signal pin 85 of governor circuit, by comparing operation,
Regulated voltage signal is adjusted output pin 84 by voltage to issue to 12/24V driving voltage controlling circuit 31, and electric current is believed
The current signal of number output pin 82 is exported to driving current output circuit 32, and the current signal for generating PWM wave by circuit is defeated
Out；Governor circuit passes through 83 output frequency signal of frequency signal output pin to PWM wave frequency signal output port 51 simultaneously, comes
The frequency signal of PWM wave is generated, while driving signal measurement feed circuit passes through the measurement driving letter of driving current measurement port 41
Number actual measurement parameter, and by data by feedback current data port 42 respectively feed back to governor circuit PWM wave signal feedback
Input pin 86 compares calculating by the parameter with setting, exports the electric current and frequency signal of PWM wave again, and will be real
Measured data transmits pin 71 by signal and shows data by showing that signal output pin 81 is output to control input pin 72
Show that signal setting on the real-time current display screen 68 and real-time frequency display screen 69 of display panel, is exported in driving instrument in this way
The PWM wave signal at end is exactly echo signal data.
To sum up, a kind of stepless-adjustment nodal pattern PWM wave signal that the utility model uses drives instrument, ensure that driving current exports
The voltage stabilization of circuit improves the precision of signal output；Increase filtered signal, reduces the interference in circuit；It can
Compensating the temperature drift generated by environment influences, and ensure that the correct reliable of data value；The signal transmitted by voltage value, reduces
Circuit loss improves the precision of output；The control chip of use, processing capacity is powerful, improves output by pull down resistor
The stability of voltage；The balanced distribution of chip pin voltage of governor circuit, effectively controls the temperature because of the unbalanced generation of voltage
Drift influences；The utility model adjustable working frequency is 50~500Hz, and adjustable current range is 0~5A, using interactive touch-control
Screen, it is easy to operate, transient current can be monitored in real time, use scope covers a variety of solenoid valve brands and model both at home and abroad.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (8)
1. a kind of stepless-adjustment nodal pattern PWM wave signal drives instrument, it is characterised in that: the driving instrument includes signal setting and display surface
Plate, display and touch screen control circuit, driving signal measurement feed circuit, 12/24V driving voltage controlling circuit, are driven governor circuit
Dynamic Voltage Feedback Acquisition Circuit, driving frequency output circuit, driving current output circuit；The signal setting connects with display panel
It is connected to display and touch screen control circuit, the governor circuit is respectively connected to display and measures with touch screen control circuit, driving signal
Feed circuit, 12/24V driving voltage controlling circuit, driving voltage feedback collection circuit, driving current output circuit and driving frequency
Rate output circuit, the 12/24V driving voltage controlling circuit are connected to driving voltage feedback collection circuit, driving current output
Circuit, the driving voltage feedback collection circuit connection to driving current output circuit, the driving current output circuit and drive
Dynamic frequency output circuit is connected to driving signal measurement feed circuit.
2. a kind of stepless-adjustment nodal pattern PWM wave signal according to claim 1 drives instrument, it is characterised in that: the driving electricity
It presses feedback collection circuit to be equipped with voltage acquisition port (21) and driving voltage output port (22), passes through voltage acquisition port (21)
The voltage value for acquiring driving current output circuit carries out analog signal processing, is exported by driving voltage by operational amplifier
Sampled value is transmitted to governor circuit in port (22).
3. a kind of stepless-adjustment nodal pattern PWM wave signal according to claim 1 drives instrument, it is characterised in that: the 12/24V
The voltage of DC power supply according to the signal of governor circuit, is adjusted to required voltage by driving voltage controlling circuit (31), for driving
Current output circuit (32) and the power supply of driving voltage feedback collection circuit, the driving current output circuit (32) is by governor circuit
Current output signal be filtered output.
4. a kind of stepless-adjustment nodal pattern PWM wave signal according to claim 1 drives instrument, it is characterised in that: the driving letter
Number measurement feed circuit be equipped with driving current measurement port (41) and feedback current data port (42), from driving current measurement
The measured value of port (41), by operational amplifier, simulation process is given data feedback by feedback current data port (42)
Governor circuit.
5. a kind of stepless-adjustment nodal pattern PWM wave signal according to claim 1 drives instrument, it is characterised in that: the driving frequency
Rate output circuit is equipped with PWM wave frequency signal output port (51), and the governor circuit output frequency signal to PWM wave frequency is believed
Number output port (51) generates the frequency signal of PWM wave.
6. a kind of stepless-adjustment nodal pattern PWM wave signal according to claim 1 drives instrument, it is characterised in that: the signal is set
Setting with display panel includes rotary switch (60), electric current display screen (61), frequency display screen (62), voltage display screen (63), 12/
24V switching push button (64), control switching push button (65), number increasing button (66), numerical value reduces button (67), real-time current is shown
Display screen (68), real-time frequency display screen (69).
7. a kind of stepless-adjustment nodal pattern PWM wave signal according to claim 1 drives instrument, it is characterised in that: the display with
Touch screen control circuit includes signal transmission pin (71), control input pin (72) and data transmission pin (73)；The signal
Signal setting and display panel are connected to described in transmission pin (71) and control input pin (72), the data transmit pin
(73) it is connected to governor circuit.
8. a kind of stepless-adjustment nodal pattern PWM wave signal according to claim 1 drives instrument, it is characterised in that: the master control electricity
Road includes display signal output pin (81), current signal output pin (82), frequency signal output pin (83), voltage adjusting
Output pin (84), Voltage Feedback input signal pin (85), PWM wave signal feedback input pin (86), display and touch screen control
Circuit input signal pin (87) processed；The display signal output pin (81) and display are drawn with touch screen control circuit input signal
Foot (87) is connected to display and touch screen control circuit, and the current signal output pin (82) is connected to driving current output electricity
Road, the frequency signal output pin (83) are connected to driving frequency output circuit, and the voltage adjusts output pin (84) even
It is connected to 12/24V driving voltage controlling circuit, the Voltage Feedback input signal pin (85) is connected to driving voltage feedback collection
Circuit, the PWM wave signal feedback input pin (86) are connected to driving signal measurement feed circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821152532.7U CN208638246U (en) | 2018-07-20 | 2018-07-20 | A kind of stepless-adjustment nodal pattern PWM wave signal driving instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821152532.7U CN208638246U (en) | 2018-07-20 | 2018-07-20 | A kind of stepless-adjustment nodal pattern PWM wave signal driving instrument |
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| Publication Number | Publication Date |
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| CN208638246U true CN208638246U (en) | 2019-03-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667279A (en) * | 2018-07-20 | 2018-10-16 | 无锡正大轴承机械制造股份有限公司 | A kind of stepless-adjustment nodal pattern PWM wave signal driving instrument |
-
2018
- 2018-07-20 CN CN201821152532.7U patent/CN208638246U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667279A (en) * | 2018-07-20 | 2018-10-16 | 无锡正大轴承机械制造股份有限公司 | A kind of stepless-adjustment nodal pattern PWM wave signal driving instrument |
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