Control device for piezoelectric vibrator, piezoelectric vibrator and vibratory plate

Abstract

This utility model belongs to the field of electronic circuit technology, specifically relating to a control device for a piezoelectric vibrator, a piezoelectric vibrator, and a vibrating plate. The control device for the piezoelectric vibrator includes: a microprocessor, a multi-channel signal input circuit, an output signal conditioning circuit, and an output signal parameter adjustment circuit. The microprocessor receives input signals sent by the multi-channel signal input circuit; the output signal conditioning circuit filters the output signals until the piezoelectric vibrator is driven to work; the output signal parameter adjustment circuit is adapted to output corresponding parameter adjustment signals to the microprocessor. This utility model, by setting up a multi-channel signal input circuit, can send multiple input signals to the microprocessor. In conventional mode, the first input signal must be given first, followed by the second input signal, to enable the microprocessor to drive the piezoelectric vibrator. Alternatively, in special mode, the microprocessor can drive the piezoelectric vibrator by directly giving a third input signal, thus meeting production needs under different working conditions.

Description

Technical Field

[0001] This utility model belongs to the field of electronic circuit technology, specifically relating to signal modulation equipment, and more particularly to a control device for a piezoelectric vibrator, a piezoelectric vibrator, and a vibrating plate. Background Technology

[0002] Traditional piezoelectric vibrators are controlled directly by a single switch. However, piezoelectric vibrators have a large working stroke, high movement speed, and high load-bearing capacity. In actual operation, they are prone to false triggering, which affects the entire production process and results in poor safety.

[0003] Therefore, there is an urgent need to develop a new control device for piezoelectric oscillators, as well as a piezoelectric oscillator and a vibrating plate, to solve the technical problem of false triggering caused by the single-channel control of traditional piezoelectric oscillators.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0005] This disclosure provides at least one control device for a piezoelectric vibrator, a piezoelectric vibrator, and a vibratory plate.

[0006] In a first aspect, embodiments of this disclosure provide a control device for a piezoelectric vibrator, comprising: a microprocessor, a multiplexed signal input circuit, an output signal conditioning circuit, and an output signal parameter adjustment circuit; wherein the multiplexed signal input circuit, the output signal conditioning circuit, and the output signal parameter adjustment circuit are electrically connected to the microprocessor; the microprocessor is configured to receive a first input signal, a second input signal, or a third input signal sent by the multiplexed signal input circuit, to output a corresponding output signal to the output signal conditioning circuit; the output signal conditioning circuit is adapted to filter the output signal until it drives the piezoelectric vibrator to operate; and the output signal parameter adjustment circuit is adapted to output a corresponding parameter adjustment signal to the microprocessor so that the microprocessor adjusts the parameters of the output signal.

[0007] In one optional embodiment, the multi-channel signal input circuit includes: a first signal input sub-circuit, a second signal input sub-circuit, and a third signal input sub-circuit; the first signal input sub-circuit, the second signal input sub-circuit, and the third signal input sub-circuit are electrically connected to corresponding external signal sources, and the first signal input sub-circuit, the second signal input sub-circuit, and the third signal input sub-circuit are electrically connected to a microprocessor; the first signal input sub-circuit is adapted to send a first input signal to the microprocessor when acquiring an external signal; the second signal input sub-circuit is adapted to send a second input signal to the microprocessor when acquiring an external signal; and the third signal input sub-circuit is adapted to send a third input signal to the microprocessor when acquiring an external signal.

[0008] In one optional implementation, the first signal input sub-circuit, the second signal input sub-circuit, and the third signal input sub-circuit have the same circuit structure and each includes: a diode, a current-limiting resistor, an RC filter, and an optocoupler connected in sequence; the diode is electrically connected to an external signal source, and the optocoupler is electrically connected to a microprocessor; when the external signal source provides a driving signal, the diode conducts to form a corresponding input signal, which is then sent to the microprocessor via the current-limiting resistor, the RC filter, and the optocoupler.

[0009] In one optional embodiment, the output signal conditioning circuit includes: a first filter, a second filter, a third filter, and a fourth filter; wherein the first filter and the second filter are electrically connected to a microprocessor, the first filter and the second filter are electrically connected, the third filter and the fourth filter are electrically connected to a piezoelectric vibrator, the third filter is electrically connected to the first filter, the fourth filter is electrically connected to the second filter, and the fourth filter is electrically connected to the third filter; the first filter, the second filter, the third filter, and the fourth filter are adapted to filter the output signal until the piezoelectric vibrator is driven to operate.

[0010] In one optional embodiment, the output signal parameter adjustment circuit includes: at least three button sub-circuits and several display sub-circuits; each of the button sub-circuits is electrically connected to each display sub-circuit, and each display sub-circuit is electrically connected to a microprocessor; one of the button sub-circuits is adapted to send a parameter type selection signal to the microprocessor, one of the button sub-circuits is adapted to send a parameter increase signal to the microprocessor, and one of the button sub-circuits is adapted to send a parameter decrease signal to the microprocessor; each of the display sub-circuits is adapted to display the parameter adjustment value.

[0011] In one optional implementation, the circuit structures of each of the button sub-circuits are identical, and each includes a button.

[0012] In one optional implementation, the circuit structures of each of the display sub-circuits are identical, and each includes a digital tube.

[0013] In one alternative implementation, the parameters of the output signal include: output voltage and output frequency.

[0014] Secondly, embodiments of this disclosure also provide a piezoelectric vibrator, which includes: a control device for a piezoelectric vibrator as described above.

[0015] Thirdly, embodiments of this disclosure also provide a vibratory feeder, which includes: a vibratory feeder body and a piezoelectric vibrator as described above; wherein the piezoelectric vibrator is mounted on the vibratory feeder body.

[0016] The beneficial effects of this utility model are that, by setting up a multi-channel signal input circuit, it can send multiple input signals to the microprocessor. In the conventional mode, the first input signal needs to be given first, followed by the second input signal, in order for the microprocessor to drive the piezoelectric vibrator to work. Alternatively, in a special mode, the microprocessor can drive the piezoelectric vibrator by directly giving the third input signal. This can meet the production needs under different working conditions. At the same time, the output signal conditioning circuit conditions the output signal, enabling precise control of the piezoelectric vibrator. Furthermore, the output signal parameter adjustment circuit can flexibly adjust the parameters of the output signal, achieving wide-range and high-precision operation of the piezoelectric vibrator.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A schematic block diagram of a control device for a piezoelectric vibrator provided in an embodiment of this disclosure; Figure 2 A circuit diagram of a microprocessor provided for an embodiment of this disclosure; Figure 3A circuit diagram of a multi-channel signal input circuit provided in an embodiment of this disclosure; Figure 4 A circuit diagram of an output signal conditioning circuit provided in an embodiment of this disclosure; Figure 5 A circuit diagram of an output signal parameter adjustment circuit provided in an embodiment of this disclosure; In the picture: U9, microprocessor. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0023] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] like Figures 1 to 5 As shown, at least one embodiment provides a control device for a piezoelectric vibrator, comprising: a microprocessor U9, a multiplexed signal input circuit, an output signal conditioning circuit, and an output signal parameter adjustment circuit; wherein the multiplexed signal input circuit, the output signal conditioning circuit, and the output signal parameter adjustment circuit are electrically connected to the microprocessor U9; the microprocessor U9 is configured to receive a first input signal, a second input signal, or a third input signal sent by the multiplexed signal input circuit, to output a corresponding output signal to the output signal conditioning circuit; the output signal conditioning circuit is adapted to filter the output signal until it drives the piezoelectric vibrator to operate; and the output signal parameter adjustment circuit is adapted to output a corresponding parameter adjustment signal to the microprocessor U9, so that the microprocessor U9 adjusts the parameters of the output signal.

[0027] Specifically, the microprocessor U9 can be, but is not limited to, an STC12C5A08S2 series microcontroller.

[0028] In at least one embodiment, a multi-channel signal input circuit can send multiple input signals to the microprocessor U9. In the conventional mode, the first input signal must be given first, followed by the second input signal, to enable the microprocessor U9 to drive the piezoelectric vibrator. Alternatively, in a special mode, the microprocessor U9 can drive the piezoelectric vibrator by directly giving the third input signal. This can meet the production needs under different working conditions. At the same time, the output signal conditioning circuit conditions the output signal, enabling precise control of the piezoelectric vibrator. Furthermore, the output signal parameter adjustment circuit can flexibly adjust the parameters of the output signal, achieving wide-range and high-precision operation of the piezoelectric vibrator.

[0029] Specifically, the regular mode refers to day shift work or periods when fatigue is not easily experienced, while the special mode refers to night shift work or periods when fatigue is easily experienced.

[0030] In at least one embodiment, please refer to Figure 3The multi-channel signal input circuit includes: a first signal input sub-circuit, a second signal input sub-circuit, and a third signal input sub-circuit; the first signal input sub-circuit, the second signal input sub-circuit, and the third signal input sub-circuit are electrically connected to corresponding external signal sources, and are electrically connected to the microprocessor U9; the first signal input sub-circuit is adapted to send a first input signal to the microprocessor U9 when acquiring an external signal; the second signal input sub-circuit is adapted to send a second input signal to the microprocessor U9 when acquiring an external signal; and the third signal input sub-circuit is adapted to send a third input signal to the microprocessor U9 when acquiring an external signal.

[0031] Specifically, please refer to Figure 3 The first signal input sub-circuit first provides the first input signal to the microprocessor U9, and the second signal input sub-circuit then provides the second input signal to the microprocessor U9. At this time, the microprocessor U9 outputs the signal.

[0032] Specifically, the first signal input sub-circuit, in conjunction with the second signal input sub-circuit, controls the operation of the piezoelectric vibrator in the normal mode.

[0033] Specifically, please refer to Figure 3 The third signal input sub-circuit directly provides the third input signal to the microprocessor U9, at which point the microprocessor U9 outputs the signal.

[0034] Specifically, the third input signal, in a special mode, controls the operation of the piezoelectric vibrator.

[0035] In at least one embodiment, please refer to Figure 3 The first signal input sub-circuit, the second signal input sub-circuit, and the third signal input sub-circuit have the same circuit structure and each includes: a diode, a current-limiting resistor, an RC filter, and an optocoupler connected in sequence; the diode is electrically connected to an external signal source, and the optocoupler is electrically connected to the microprocessor U9; when the external signal source provides a drive signal, the diode conducts to form a corresponding input signal, which is sent to the microprocessor U9 via the current-limiting resistor, the RC filter, and the optocoupler.

[0036] Specifically, the diode forms a path when a low-level signal is input from an external signal source, and then sends the corresponding input signal to the microprocessor U9 through the optocoupler.

[0037] Specifically, the function of the current-limiting resistor is to protect the circuit.

[0038] Specifically, the function of an RC filter is to filter out high-frequency signal interference.

[0039] Specifically, please refer to Figure 3 The first signal input sub-circuit consists of diode D3, current-limiting resistor R3, capacitor C5, resistor R2, optocoupler U2 and resistor R1. Capacitor C5 and resistor R2 form an RC filter. P3 is connected to an external signal source, and P4.0 is connected to microprocessor U9, which can send a low-level signal (first input signal) to microprocessor U9.

[0040] Specifically, please refer to Figure 3 The second signal input sub-circuit consists of diode D4, current-limiting resistor R6, capacitor C6, resistor R5, optocoupler U3, and resistor R4. Capacitor C6 and resistor R5 form an RC filter. P0 is connected to an external signal source, and P1.0 is connected to microprocessor U9, enabling the sending of a low-level signal (second input signal) to microprocessor U9.

[0041] Specifically, please refer to Figure 3 The third signal input sub-circuit consists of diode D5, current-limiting resistor R9, capacitor C7, resistor R8, optocoupler U4, and resistor R7. Capacitor C7 and resistor R8 form an RC filter. P1 is connected to an external signal source, and P4.1 is connected to microprocessor U9, enabling the sending of a low-level signal (third input signal) to microprocessor U9.

[0042] In at least one embodiment, please refer to Figure 4 The output signal conditioning circuit includes a first filter, a second filter, a third filter, and a fourth filter; wherein the first filter and the second filter are electrically connected to the microprocessor U9, the first filter and the second filter are electrically connected, the third filter and the fourth filter are electrically connected to the piezoelectric vibrator, the third filter is electrically connected to the first filter, the fourth filter is electrically connected to the second filter, and the fourth filter is electrically connected to the third filter; the first filter, the second filter, the third filter, and the fourth filter are adapted to filter the output signal until the piezoelectric vibrator is driven to work.

[0043] Specifically, please refer to Figure 4 The P1.2 and P1.3 terminals are connected to the microprocessor U9, and the IN+ and IN- terminals are connected to the piezoelectric vibrator, which can realize multi-level filtering and ensure the accuracy of the PWM signal duty cycle.

[0044] Specifically, please refer to Figure 4 The first filter consists of resistor R16 and capacitor C11, and serves as a filter.

[0045] Specifically, please refer to Figure 4 The second filter consists of resistor R17 and capacitor C12, and serves as a filter.

[0046] Specifically, please refer to Figure 4 The third filter consists of resistor R18 and capacitor C13, and serves as a filter.

[0047] Specifically, please refer to Figure 4 The fourth filter consists of resistor R19 and capacitor C14, and serves as a filter.

[0048] In at least one embodiment, please refer to Figure 5 The output signal parameter adjustment circuit includes: at least three button sub-circuits and several display sub-circuits; each of the button sub-circuits is electrically connected to each display sub-circuit, and each display sub-circuit is electrically connected to the microprocessor U9; one of the button sub-circuits is adapted to send a parameter type selection signal to the microprocessor U9, one of the button sub-circuits is adapted to send a parameter increase signal to the microprocessor U9, and one of the button sub-circuits is adapted to send a parameter decrease signal to the microprocessor U9; each of the display sub-circuits is adapted to display the parameter adjustment value.

[0049] Specifically, please refer to Figure 5 There is also a key circuit suitable for sending a power switch signal to the microprocessor U9.

[0050] In at least one embodiment, please refer to Figure 5 The circuit structure of each of the button sub-circuits is the same, and each includes a button.

[0051] Specifically, please refer to Figure 5 Button S1 is adapted to send a power switch signal to the microprocessor U9.

[0052] Specifically, please refer to Figure 5 Button S2 is suitable for sending a parameter adjustment signal to the microprocessor U9.

[0053] Specifically, please refer to Figure 5 Button S3 is suitable for sending a parameter downgrade signal to the microprocessor U9.

[0054] Specifically, please refer to Figure 5 Button S4 is suitable for sending a parameter type selection signal to microprocessor U9.

[0055] In at least one embodiment, please refer to Figure 5 The circuit structures of each of the aforementioned display sub-circuits are the same, and all of them include: digital tubes.

[0056] Specifically, please refer to Figure 5 Digital tubes PL1, PL2, PL3, and PL4 together display the parameter adjustment value.

[0057] In at least one embodiment, the parameters of the output signal include: output voltage and output frequency.

[0058] Based on the same technical concept, at least one embodiment also provides a piezoelectric vibrator, which includes: a control device for a piezoelectric vibrator as described above.

[0059] Based on the same technical concept, at least one embodiment also provides a vibratory feeder, which includes: a vibratory feeder body and a piezoelectric vibrator as described above; wherein the piezoelectric vibrator is mounted on the vibratory feeder body.

[0060] In summary, this invention, by setting up a multi-channel signal input circuit, can send multiple input signals to the microprocessor. In the conventional mode, the first input signal must be supplied first, followed by the second input signal, to enable the microprocessor to drive the piezoelectric vibrator. Alternatively, in a special mode, the microprocessor can drive the piezoelectric vibrator by directly supplying the third input signal. This can meet the production needs under different working conditions. At the same time, the output signal conditioning circuit conditions the output signal, enabling precise control of the piezoelectric vibrator. Furthermore, the output signal parameter adjustment circuit can flexibly adjust the parameters of the output signal, achieving wide-range and high-precision operation of the piezoelectric vibrator.

[0061] The disclosures and other solutions, examples, embodiments, modules, and functional operations described in this document can be implemented in digital electronic circuits, or computer software, firmware, or hardware, including the structures disclosed in this document and their structural equivalents, or combinations thereof. The disclosures and other embodiments can be implemented as one or more computer program products, i.e., one or more modules of computer program instructions encoded on a tangible and non-volatile computer-readable medium for execution by a data processing apparatus or for controlling the operation of the data processing apparatus. The computer-readable medium can be a machine-readable storage device, a machine-readable storage substrate, a storage device, a material composition that influences machine-readable propagated signals, or one or more of these. The terms "data processing unit" or "data processing apparatus" include all means, devices, and machines for processing data, including, for example, programmable processors, computers, or multiprocessors or computer groups. In addition to hardware, the apparatus may also include code that creates an execution environment for a computer program, such as code constituting processor firmware, a protocol stack, a database management system, an operating system, or combinations thereof. The propagated signals are artificially generated signals, such as machine-generated electrical, optical, or electromagnetic signals, which are generated to encode information for transmission to a suitable receiver device.

[0062] Computer programs (also known as programs, software, software applications, scripts, or code) can be written in any programming language (including compiled or interpreted languages) and can be deployed in any form, including as standalone programs or as modules, components, subroutines, or other units suitable for use in a computing environment. A computer program does not necessarily correspond to a file in a file system. A program can be stored in a portion of a file that holds other programs or data (e.g., one or more scripts stored in a markup language document), in a single file dedicated to that program, or in multiple coordinating files (e.g., a file storing one or more modules, subroutines, or portions of code). Computer programs can be deployed and executed on one or more computers located at a single site or distributed across multiple sites interconnected by a communication network.

[0063] The processing and logic flows described in this document can be executed by one or more programmable processors that execute one or more computer programs to perform functions by manipulating input data and generating outputs. The processing and logic flows can also be executed by special-purpose logic circuitry, and the devices can be implemented as special-purpose logic circuitry, such as FPGAs (Field-Programmable Gate Arrays) or ASICs (Application-Specific Integrated Circuits).

[0064] For example, processors suitable for executing computer programs include general-purpose and special-purpose microprocessors, as well as any one or more of any type of digital computer. Typically, the processor receives instructions and data from read-only memory or random access memory, or both. The basic components of a computer are a processor that executes instructions and one or more storage devices that store the instructions and data. Typically, a computer will also include one or more mass storage devices for storing data, such as magnetic disks, magneto-optical disks, or optical disks, or operatively coupled to receive data from or transfer data to mass storage devices, or both. However, a computer does not necessarily have such devices. Computer-readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media, and memory devices, including, for example, semiconductor memory devices such as erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), and flash memory devices; magnetic disks, such as internal hard disks or removable disks; magneto-optical disks; and optical disc read-only memory (CD ROM) and digital versatile optical disc read-only memory (DVD-ROM). The processor and memory may be supplemented by dedicated logic circuitry or incorporated into dedicated logic circuitry.

[0065] While this patent document contains numerous details, it should not be construed as limiting any utility model or the scope of the claims, but rather as a description of features of a particular embodiment of a particular utility model. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various functions described in the context of a single embodiment may also be implemented individually in multiple embodiments, or in any suitable sub-combination. Furthermore, although the foregoing features may be described as functioning in certain combinations, or even initially claimed to be so, in some cases one or more features from a combination of claims may be removed from the combination, and a combination of claims may refer to a sub-combination or a variation of a sub-combination.

[0066] Similarly, although the operations are described in a specific order in the accompanying drawings, this should not be construed as requiring the specific order or sequence shown to perform such operations, or all the described operations, in order to obtain the desired result. Furthermore, the separation of various system components in the embodiments of this patent document should not be construed as requiring such separation in all embodiments.

[0067] Only some implementations and examples are described; other implementations, enhancements, and variations can be made based on the content described and illustrated in this patent document.

[0068] When no intermediate component exists other than a line, trace, or other medium between the first and second components, the first component is directly coupled to the second component. When an intermediate component other than a line, trace, or other medium exists between the first and second components, the first component is indirectly coupled to the second component. The term "coupling" and its variations include direct coupling and indirect coupling. Unless otherwise stated, the term "about" is used to mean a range including upper and lower 10% of the value.

[0069] While several embodiments are provided in this disclosure, it should be understood that the disclosed systems and methods may be embodied in many other specific forms without departing from the spirit or scope of this disclosure. The present examples are intended to be illustrative rather than restrictive and are not limited to the details given. For example, various elements or components may be combined or integrated into another system, or certain features may be omitted or not implemented.

[0070] In the several embodiments provided herein, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative; for example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0071] Furthermore, without departing from the scope of this disclosure, the discrete or individual technologies, systems, subsystems, and methods described and illustrated in the various embodiments may be combined or integrated with other systems, modules, technologies, or methods. Other items shown or discussed as coupled may be directly connected or indirectly coupled or communicated via some interface, device, or intermediate component in an electrical, mechanical, or other manner. Those skilled in the art can identify other examples of changes, substitutions, and modifications without departing from the spirit and scope of this disclosure.

Claims

1. A control device for a piezoelectric vibrator, characterized in that, include: Microprocessor, multiple signal input circuit, output signal conditioning circuit, and output signal parameter adjustment circuit; in The multi-channel signal input circuit, output signal conditioning circuit, and output signal parameter adjustment circuit are electrically connected to the microprocessor, respectively. The microprocessor is configured to receive a first input signal, a second input signal, or a third input signal from the multiple signal input circuit, so as to output a corresponding output signal to the output signal conditioning circuit. The output signal conditioning circuit is adapted to filter the output signal until it drives the piezoelectric resonator to operate; and The output signal parameter adjustment circuit is adapted to output a corresponding parameter adjustment signal to the microprocessor so that the microprocessor adjusts the parameters of the output signal.

2. The control device for a piezoelectric vibrator as described in claim 1, characterized in that, The multi-channel signal input circuit includes: a first signal input sub-circuit, a second signal input sub-circuit, and a third signal input sub-circuit; The first signal input sub-circuit, the second signal input sub-circuit, and the third signal input sub-circuit are electrically connected to their respective external signal sources, and are also electrically connected to the microprocessor. The first signal input sub-circuit is adapted to send a first input signal to the microprocessor when acquiring an external signal; The second signal input sub-circuit is adapted to send a second input signal to the microprocessor when acquiring an external signal; The third signal input sub-circuit is adapted to send a third input signal to the microprocessor when acquiring an external signal.

3. The control device for a piezoelectric vibrator as described in claim 2, characterized in that, The circuit structures of the first signal input sub-circuit, the second signal input sub-circuit, and the third signal input sub-circuit are the same, and each includes: A diode, a current-limiting resistor, an RC filter, and an optocoupler are connected in sequence. The diode is electrically connected to an external signal source, and the optocoupler is electrically connected to the microprocessor; When an external signal source provides a driving signal, the diode turns on to form a corresponding input signal, which is then sent to the microprocessor via a current-limiting resistor, an RC filter, and an optocoupler.

4. The control device for a piezoelectric vibrator as described in claim 1, characterized in that, The output signal conditioning circuit includes: a first filter, a second filter, a third filter, and a fourth filter; wherein... The first filter and the second filter are electrically connected to the microprocessor. The first filter and the second filter are electrically connected. The third filter and the fourth filter are electrically connected to the piezoelectric vibrator. The third filter is electrically connected to the first filter. The fourth filter is electrically connected to the second filter. The fourth filter is electrically connected to the third filter. The first filter, the second filter, the third filter, and the fourth filter are adapted to filter the output signal until the piezoelectric vibrator is driven to work.

5. The control device for a piezoelectric vibrator as described in claim 1, characterized in that, The output signal parameter adjustment circuit includes: at least three key sub-circuits and several display sub-circuits; Each of the aforementioned button sub-circuits is electrically connected to each of the display sub-circuits, and each of the aforementioned display sub-circuits is electrically connected to the microprocessor; One of the button sub-circuits is adapted to send a parameter type selection signal to the microprocessor, one of the button sub-circuits is adapted to send a parameter up signal to the microprocessor, and one of the button sub-circuits is adapted to send a parameter down signal to the microprocessor; Each of the aforementioned display sub-circuits is adapted to display parameter adjustment values.

6. The control device for a piezoelectric vibrator as described in claim 5, characterized in that, The circuit structures of the button sub-circuits described in each circuit are the same, and each includes a button.

7. The control device for a piezoelectric vibrator as described in claim 5, characterized in that, The circuit structures of all the display sub-circuits are the same, and each includes a digital tube.

8. The control device for a piezoelectric vibrator as described in claim 1, characterized in that, The parameters of the output signal include: output voltage and output frequency.

9. A piezoelectric vibrator characterized by comprising: include: The control device for a piezoelectric vibrator as described in any one of claims 1-8.

10. A vibrating tray characterized by, include: The vibratory plate body and the piezoelectric vibrator as described in claim 9; in The piezoelectric vibrator is mounted on the vibratory plate body.

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