CN216285431U - Program control power function signal circuit board - Google Patents
Program control power function signal circuit board Download PDFInfo
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- CN216285431U CN216285431U CN202121317482.5U CN202121317482U CN216285431U CN 216285431 U CN216285431 U CN 216285431U CN 202121317482 U CN202121317482 U CN 202121317482U CN 216285431 U CN216285431 U CN 216285431U
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Abstract
The utility model discloses a program control power function signal circuit board, which is provided with a waveform signal generating module and a power amplifying circuit; a signal receiving end of the waveform signal generating module receives an input signal, and the waveform signal generating module performs waveform processing on the input signal to generate a waveform signal which is output through a signal output end of the waveform signal generating module; the receiving end of the power amplifying circuit receives the waveform signal, the power amplifying circuit amplifies the power of the waveform signal and outputs the amplified signal through the amplified signal output end of the power amplifying circuit, so that the technical problem that the power and voltage amplitude of the existing function generator are limited is solved, the program control function signal board with strong load capacity is provided, and the program control function signal board not only can be used as a frequency signal source, but also can be used as a power single-phase variable frequency power source and can be rapidly transplanted to a technical effect in engineering projects.
Description
Technical Field
The application relates to the technical field of function generators, in particular to a program-controlled power function signal circuit board.
Background
The function generator can generate sine waves, triangular waves and square waves with various frequencies and amplitudes, even arbitrary waveforms, has a wide frequency range, is often used as a universal signal source, and is widely applied to the fields of production testing, instrument maintenance, laboratories, medicine, education, chemistry, communication, geophysics, industrial control, aerospace and the like.
Although the existing function generator has the advantage of wider frequency range, the power and voltage amplitude of the function generator are limited, the function generator is generally used for a signal source without load requirement, and the application range of the function generator is limited by the size of the function generator.
In summary, the conventional function generator has the technical problem of limited power and voltage amplitude.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a program-controlled power function signal circuit board, which is used to solve the technical problem of the function generator in the prior art that the power and voltage amplitudes are limited.
A programmable power function signal circuit board, comprising:
a waveform signal generation module; a signal receiving end of the waveform signal generating module receives an input signal, and the waveform signal generating module performs waveform processing on the input signal to generate a waveform signal which is output through a signal output end of the waveform signal generating module;
a power amplification circuit; and the receiving end of the power amplifying circuit receives the waveform signal, and the power amplifying circuit amplifies the power of the waveform signal and outputs the amplified signal through the amplified signal output end of the power amplifying circuit.
Specifically, the waveform signal generation module includes: the input display circuit, the interface circuit, the microcontroller and the DDS signal generating circuit are electrically connected; the input display circuit receives the input signal and then transmits the input signal to the microcontroller for control processing through the interface circuit, and the input signal after control processing is input into the DDS signal generating circuit for processing to generate the waveform signal.
In an improvement, the waveform signal generation module further comprises an interface control circuit; the interface control circuit is electrically connected with the microcontroller and the DDS signal generating circuit; and the input signal after control processing is input into the interface control circuit for cache isolation and then input into the DDS signal generating circuit for processing to generate the waveform signal.
In an improvement, the circuit board for programming the power function signal further comprises: the filter is electrically connected with the DDS signal generating circuit; and the filter filters the waveform signal and inputs the waveform signal to the power amplifying circuit.
The program-controlled power function signal circuit board further comprises: the signal amplifying circuit is electrically connected with the filter; and the signal amplification circuit amplifies the filtered waveform signal and inputs the amplified waveform signal into the power amplification circuit.
In an improved mode, the program-controlled power function signal circuit board further comprises a feedback correction circuit; the feedback correction circuit comprises an AGC circuit and a peak value detection circuit; the AGC circuit is electrically connected with the signal amplification circuit, and the peak detection circuit is electrically connected with the interface control circuit; the peak detection circuit detects the voltage of the waveform signal after signal amplification and transmits the voltage to the interface control circuit, the interface control circuit and the AGC circuit correct the voltage, and the corrected waveform signal is input into the power amplification circuit through the AGC circuit.
Furthermore, the program-controlled power function signal circuit board also comprises a keyboard electrically connected with the input display circuit; the keyboard is used for inputting the input signal.
Furthermore, the program-controlled power function signal circuit board also comprises an RS232/RS485 serial communication module which is electrically connected with the input display circuit; and the RS232/RS485 serial communication module is used for inputting the input signal.
Furthermore, the program-controlled power function signal circuit board also comprises an encoder electrically connected with the input display circuit; the encoder is used for inputting the input signal.
In particular, the microcontroller is an STM32 microcontroller.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model sets waveform signal generation module and power amplification circuit; a signal receiving end of the waveform signal generating module receives an input signal, and the waveform signal generating module performs waveform processing on the input signal to generate a waveform signal which is output through a signal output end of the waveform signal generating module; the receiving end of the power amplifying circuit receives the waveform signal, and the waveform signal is output by the power amplifying circuit through the amplifying signal output end of the power amplifying circuit after being subjected to power amplification by the power amplifying circuit, so that the technical problem that the power and voltage amplitude of the conventional function generator are limited is solved, the program control function signal board with strong load capacity is provided, and the technical effect that the board can be used as a frequency signal source, can also be used as a power single-phase variable frequency power source and can be rapidly transplanted to an engineering project is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a circuit board for programming power function signals;
FIG. 2 is a schematic diagram of a DDS signal generating circuit;
FIG. 3 is a schematic structural diagram of a waveform signal generating module;
FIG. 4 is another schematic diagram of the structure of the circuit board for programming the power function signal;
FIG. 5 is a schematic diagram of a higher order elliptic filter;
FIG. 6 is another schematic diagram of the structure of the circuit board for programming the power function signal;
FIG. 7 is a schematic diagram of an AGC circuit;
FIG. 8 is a schematic diagram of a peak detection circuit;
FIG. 9 is a schematic diagram of a power amplifier circuit;
FIG. 10 is another schematic diagram of the waveform signal generating module;
fig. 11 is another schematic structural diagram of the circuit board for programming the power function signal.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example one
A programmable power function signal circuit board, comprising:
a waveform signal generation module; a signal receiving end of the waveform signal generating module receives an input signal, and the waveform signal generating module performs waveform processing on the input signal to generate a waveform signal which is output through a signal output end of the waveform signal generating module;
a power amplification circuit; the receiving end of the power amplifying circuit receives the waveform signal, and the power amplifying circuit amplifies the power of the waveform signal and outputs the amplified signal through the amplified signal output end of the power amplifying circuit.
It should be noted that the purpose of the waveform signal generation module is to generate a waveform signal, and those skilled in the art can implement the waveform signal generation module in the prior art.
Illustratively, referring to fig. 10, the waveform signal generation module may include: the input display circuit, the interface circuit, the microcontroller and the DDS signal generating circuit are electrically connected; the input display circuit receives the input signal and transmits the input signal to the microcontroller for control processing through the interface circuit, and the input signal after control processing is input into the DDS signal generating circuit for processing to generate a waveform signal.
The input display circuit can display the type, frequency, amplitude and the like of an input signal input by the input module, and the input module can be a keyboard electrically connected with the input display circuit, or an RS232/RS485 serial communication module electrically connected with the input display circuit, or an encoder electrically connected with the input display circuit.
It should be further noted that the input display circuit communicates with the interface circuit to perform display control; the interface circuit is communicated with the microcontroller to transmit control signals; the microcontroller is connected and communicated with the DDS signal generating circuit to transmit and control signals. The input display circuit, the interface circuit, the microcontroller and the DDS signal generating circuit can be used as common unit modules, and those skilled in the art know the internal structure of the input display circuit, the interface circuit, the microcontroller and the DDS signal generating circuit.
For example, the microcontroller may be an STM32 microcontroller. The STM32 microcontroller controls DDS signal generating circuit to generate waveform signal according to RS232/RS485 serial communication or signal type, frequency, amplitude and logic from keyboard/encoder.
For another example, referring to fig. 2, the DDS signal generating circuit may be a conventional circuit with an AD9834 chip as a core.
Example two
Because microcontroller and DDS signal generation circuit direct connection when communicating, the signal can not carry out temporary isolation, leads to the wave form signal stability that DDS signal generation circuit generated not enough, for solving the poor this technical problem of wave form signal stability, this embodiment provides a wave form signal generation module on the basis of embodiment one.
Referring to fig. 3, the waveform signal generation module further includes an interface control circuit; the interface control circuit is electrically connected with the microcontroller and the DDS signal generating circuit; the input signal after control processing is input into the interface control circuit for buffer isolation and then input into the DDS signal generating circuit for processing to generate a waveform signal.
It should be noted that the interface control circuit is interposed between the microcontroller and the DDS signal generating circuit, and can perform isolation and buffering on the input signal, thereby improving the stability of the waveform signal generated by the DDS signal generating circuit.
It should be noted that the interface control circuit is a common unit module, and the inherent structure of the interface control circuit is known to those skilled in the art. The embodiment will not be described herein.
EXAMPLE III
Because the waveform signal generated by the DDS signal generating circuit has noise and the signal amplitude has low stability, this embodiment provides a program-controlled power function signal circuit board based on the second embodiment in order to solve this technical problem.
Referring to fig. 4, the circuit board for programmable power function signals further comprises: the filter is electrically connected with the DDS signal generating circuit; the wave form signal is input to the power amplifying circuit after being filtered by the filter.
It should be noted that the filter may filter the waveform signal generated by the DDS signal generating circuit, so as to purify the waveform signal.
It should be noted that the filter may be a higher order elliptic filter, wherein the higher order elliptic filter is a common unit module, and the inherent structure of the higher order elliptic filter is known to those skilled in the art.
Referring to fig. 5, for example, the higher order elliptic filter may be a6 th order elliptic filter formed by connecting a plurality of capacitors and inductors.
Example four
In order to further enhance the waveform signal, the present embodiment provides a circuit board for programming the power function signal based on the third embodiment.
Referring to fig. 11, the circuit board for programmable power function signals further comprises: the signal amplifying circuit is electrically connected with the filter; the signal amplifying circuit amplifies the waveform signal after filtering processing and then inputs the waveform signal into the power amplifying circuit.
It should be noted that the signal amplifying circuit is a common unit module, and the internal structure of the signal amplifying circuit is known to those skilled in the art. The present embodiment will not be described in detail.
EXAMPLE five
In order to improve the state that the actual output is consistent with the preset value, on the basis of the fourth embodiment, the present embodiment provides a program-controlled power function signal circuit board.
Referring to fig. 6, the programmable power function signal circuit board further includes a feedback correction circuit; the feedback correction circuit comprises an AGC circuit and a peak value detection circuit; the AGC circuit is electrically connected with the signal amplification circuit, and the peak value detection circuit is electrically connected with the interface control circuit; the peak detection circuit detects the voltage of the waveform signal after signal amplification and transmits the voltage to the interface control circuit, the interface control circuit and the AGC circuit correct the voltage, and the corrected waveform signal is input into the power amplification circuit through the AGC circuit.
It should be noted that the feedback correction circuit performs amplitude correction and adjustment, the peak detection circuit detects a signal through voltage negative feedback, a data result is sent back to the interface control circuit, the interface control circuit compares the data result with a preset amplitude, amplitude correction control is performed on the AGC circuit, and then the AGC circuit adjusts the output amplitude again, and finally the state that the actual output is consistent with the preset value is achieved.
It should be noted that the AGC circuit and the peak detection circuit are conventional circuit units, and the internal structure thereof is known to those skilled in the art.
For example, referring to fig. 7, the AGC circuit may be a conventional circuit including electrically connected electronic components such as an AD603AR type chip, a transistor Q1, and a transistor Q2.
For another example, referring to fig. 8, the peak detection circuit may be a conventional circuit including electrically connected electronic components such as an operational amplifier OPA606, OPA128, and the like.
It should be generally noted that, in the circuit board for programmable power function signals provided in the above embodiments, the power amplifying circuit is used as a conventional circuit unit, and the inherent structure thereof is known to those skilled in the art.
For example, referring to fig. 9, the power amplification circuit may be a conventional circuit including an NE5532 chip and other peripheral electronic components.
It should also be generally said that, the program-controlled power function signal circuit board provided in the above embodiment is provided with a waveform signal generating module and a power amplifying circuit; a signal receiving end of the waveform signal generating module receives an input signal, and the waveform signal generating module performs waveform processing on the input signal to generate a waveform signal which is output through a signal output end of the waveform signal generating module; the receiving end of the power amplifying circuit receives the waveform signal, the power amplifying circuit amplifies the power of the waveform signal and outputs the amplified signal through the amplified signal output end of the power amplifying circuit, so that the technical problem that the power and voltage amplitude of the existing function generator are limited is solved, the program control function signal board with strong load capacity is provided, and the program control function signal board not only can be used as a frequency signal source, but also can be used as a power single-phase variable frequency power source and can be rapidly transplanted to a technical effect in engineering projects.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present application and is not to be construed as limiting the scope of the present application, so that the present application is not limited thereto, and all equivalent variations and modifications can be made to the present application.
Claims (10)
1. A programmable power function signal circuit board, comprising:
a waveform signal generation module; a signal receiving end of the waveform signal generating module receives an input signal, and the waveform signal generating module performs waveform processing on the input signal to generate a waveform signal which is output through a signal output end of the waveform signal generating module;
a power amplification circuit; and the receiving end of the power amplifying circuit receives the waveform signal, and the power amplifying circuit amplifies the power of the waveform signal and outputs the amplified signal through the amplified signal output end of the power amplifying circuit.
2. The programmable power function signal circuit board of claim 1, wherein the waveform signal generation module comprises: the input display circuit, the interface circuit, the microcontroller and the DDS signal generating circuit are electrically connected; the input display circuit receives the input signal and then transmits the input signal to the microcontroller for control processing through the interface circuit, and the input signal after control processing is input into the DDS signal generating circuit for processing to generate the waveform signal.
3. The programmable power function signal circuit board of claim 2, wherein the waveform signal generation module further comprises an interface control circuit; the interface control circuit is electrically connected with the microcontroller and the DDS signal generating circuit; and the input signal after control processing is input into the interface control circuit for cache isolation and then input into the DDS signal generating circuit for processing to generate the waveform signal.
4. The circuit board for programming power function signals of claim 3, further comprising: the filter is electrically connected with the DDS signal generating circuit; and the filter filters the waveform signal and inputs the waveform signal to the power amplifying circuit.
5. The circuit board for programming power function signals of claim 4, further comprising: the signal amplifying circuit is electrically connected with the filter; and the signal amplification circuit amplifies the filtered waveform signal and inputs the amplified waveform signal into the power amplification circuit.
6. The circuit board for programming power function signals of claim 5, further comprising a feedback correction circuit; the feedback correction circuit comprises an AGC circuit and a peak value detection circuit; the AGC circuit is electrically connected with the signal amplification circuit, and the peak detection circuit is electrically connected with the interface control circuit; the peak detection circuit detects the voltage of the waveform signal after signal amplification and transmits the voltage to the interface control circuit, the interface control circuit and the AGC circuit correct the voltage, and the corrected waveform signal is input into the power amplification circuit through the AGC circuit.
7. The circuit board for program-controlled power function signals according to any one of claims 2-6, further comprising a keyboard electrically connected to the input display circuit; the keyboard is used for inputting the input signal.
8. The program-controlled power function signal circuit board of any one of claims 2-6, further comprising an RS232/RS485 serial communication module electrically connected to the input display circuit; and the RS232/RS485 serial communication module is used for inputting the input signal.
9. The programmable power function signal circuit board of any one of claims 2-6, further comprising an encoder electrically connected to the input display circuit; the encoder is used for inputting the input signal.
10. The board for program-controlled power function signals of any one of claims 2-6, wherein the microcontroller is an STM32 microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121317482.5U CN216285431U (en) | 2021-06-11 | 2021-06-11 | Program control power function signal circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121317482.5U CN216285431U (en) | 2021-06-11 | 2021-06-11 | Program control power function signal circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216285431U true CN216285431U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121317482.5U Active CN216285431U (en) | 2021-06-11 | 2021-06-11 | Program control power function signal circuit board |
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| Country | Link |
|---|---|
| CN (1) | CN216285431U (en) |
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- 2021-06-11 CN CN202121317482.5U patent/CN216285431U/en active Active
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