CN216700291U

CN216700291U - Magnetic fluid drive circuit and magnetic fluid drive terminal equipment

Info

Publication number: CN216700291U
Application number: CN202123008550.2U
Authority: CN
Inventors: 郁夏峰; 李中平; 高洪华
Original assignee: Guangdong Shouyu Industrial Group Co ltd
Current assignee: Guangdong Shouyu Industrial Group Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-06-07
Anticipated expiration: 2031-12-01

Abstract

The utility model discloses a magnetic fluid drive circuit and a magnetic fluid drive terminal device, wherein the magnetic fluid drive circuit is respectively connected with a sound and a magnetic fluid, and comprises: the device comprises a waveform processing module, a power supply module and a magnetic fluid driving module; the waveform processing module is used for processing audio signals provided by the sound equipment and transmitting the processed audio signals to the magnetic fluid driving module, the power supply module is used for providing corresponding voltage for the waveform processing module and the magnetic fluid driving module, and the magnetic fluid driving module is used for driving the magnetic fluid to flow after generating driving signals according to the processed audio signals. The audio signals are processed by the waveform processing module and then output to the magnetic fluid driving module, so that the magnetic fluid driving module drives the magnetic fluid to flow, the magnetic fluid is driven to flow along with the audio signals, the functions and the expression forms of the magnetic fluid driving module (electromagnet) are increased, and the user experience is improved.

Description

Magnetic fluid drive circuit and magnetic fluid drive terminal equipment

Technical Field

The utility model relates to the technical field of electronic circuits, in particular to a magnetic fluid driving circuit and magnetic fluid driving terminal equipment.

Background

The ferrofluid is also called magnetic liquid or magnetic liquid, is a novel functional material, and has the liquidity of the liquid and the magnetism of the solid magnetic material. The ferrofluid can show different changes by changing the magnetic field around the electromagnet, the electromagnet is usually used for changing the magnetic field, and the magnetic force change of the electromagnet is fixed under the normal condition and only has the on-off function, so that the function and the product performance of the electromagnet are single, and the application range is narrow.

Thus, the prior art has yet to be improved and enhanced.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a magnetic fluid driving circuit and magnetic fluid driving terminal equipment, and aims to solve the problems that in the prior art, the magnetic force change of an electromagnet is fixed, and only on and off functions are realized, so that the functions and product performances of the electromagnet are single, and the application range is narrow.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a magnetic fluid drive circuit is respectively connected with a sound device and a magnetic fluid, and comprises: the device comprises a waveform processing module, a power supply module and a magnetic fluid driving module; the waveform processing module is respectively connected with the power supply module and the magnetic fluid driving module, and the power supply module is also connected with the magnetic fluid driving module; the waveform processing module is used for processing the audio signals provided by the sound equipment and transmitting the processed audio signals to the magnetic fluid driving module, the power supply module is used for providing corresponding voltage for the waveform processing module and the magnetic fluid driving module, and the magnetic fluid driving module is used for driving the magnetic fluid to flow after generating driving signals according to the processed audio signals.

In the magnetic fluid driving circuit, the waveform processing module includes: the device comprises a filtering unit, a waveform conversion unit and a signal amplification unit; the filtering unit, the waveform conversion unit and the signal amplification unit are sequentially connected; the filtering unit is used for filtering the audio signal to generate a filtering signal and transmitting the filtering signal to the waveform conversion unit, the waveform conversion unit is used for performing waveform conversion processing on the filtering signal to obtain a waveform conversion signal and transmitting the waveform conversion signal to the signal amplification unit, and the signal amplification unit is used for amplifying the waveform conversion signal to obtain an amplification signal and transmitting the amplification signal to the magnetic fluid driving module.

In the magnetic fluid drive circuit, the power supply module includes: a first power supply unit, a second power supply unit and a third power supply unit; the first power supply unit is respectively connected with the waveform processing module and the second power supply unit, the second power supply unit is also respectively connected with the waveform processing module, the third power supply unit and the magnetic fluid driving module, and the third power supply unit is also respectively connected with the waveform processing module and the magnetic fluid driving module; the first power supply unit is used for providing a first voltage to the waveform processing module, the second power supply unit is used for providing a second voltage to the waveform processing module, and the third power supply unit is used for providing a third voltage to the magnetic fluid driving module.

In the magnetic fluid drive circuit, the filter unit includes: a first resistor and a first capacitor; one end of the first resistor is connected with the sound box, the other end of the first resistor is respectively connected with one end of the first capacitor and the waveform conversion unit, and the other end of the first capacitor is grounded.

In the magnetic fluid driving circuit, the waveform conversion unit includes: a second resistor and a photoelectric coupler; the 1 st pin of the photoelectric coupler is connected with the other end of the first resistor, the 2 nd pin of the photoelectric coupler is connected with one end of the second resistor, the other end of the second resistor is grounded, the 3 rd pin of the photoelectric coupler is connected with the signal amplification unit, and the 4 th pin of the photoelectric coupler is connected with the power supply module.

In the magnetic fluid drive circuit, the signal amplification unit includes: the third resistor, the first triode and the second triode; one end of the third resistor is connected with a pin 3 of the photoelectric coupler, the other end of the third resistor is connected with a base electrode of the first triode, an emitting electrode of the first triode is connected with a base electrode of the second triode, a collecting electrode of the first triode is respectively connected with a collecting electrode of the second triode, the power supply module and the magnetic fluid driving module, an emitting electrode of the second triode is grounded, and a collecting electrode of the second triode is respectively connected with the power supply module and the magnetic fluid driving module.

In the magnetic fluid drive circuit, the first power supply unit includes: the second capacitor, the fourth resistor and the first power supply port; one end of the second capacitor is connected with one end of the fourth resistor, the first power supply port and the second power supply unit respectively, the other end of the second capacitor is grounded, and the other end of the fourth resistor is connected with the waveform processing module.

In the magnetic fluid drive circuit, the second power supply unit includes: a first diode and a fifth resistor; the positive electrode of the first diode is connected with one end of the second capacitor, one end of the fourth resistor and the first power supply port respectively, the negative electrode of the first diode is connected with one end of the fifth resistor, and the other end of the fifth resistor is connected with the waveform processing module, the third power supply unit and the magnetic fluid driving module respectively.

In the magnetic fluid drive circuit, the third power supply unit includes: a third capacitor, a second diode and a second power supply port; one end of the third capacitor is connected with the cathode of the second diode, the second power supply port and the magnetic fluid driving module respectively, the other end of the third capacitor is grounded, and the anode of the second diode is connected with the other end of the fifth resistor, the waveform processing module and the magnetic fluid driving module respectively.

A magnetic fluid driving terminal device comprises a PCB, wherein the PCB is provided with the magnetic fluid driving circuit.

Compared with the prior art, the magnetic fluid driving circuit and the magnetic fluid driving terminal device provided by the utility model have the advantages that the magnetic fluid driving circuit is respectively connected with the sound equipment and the magnetic fluid, and comprises: the device comprises a waveform processing module, a power supply module and a magnetic fluid driving module; the waveform processing module is respectively connected with the power supply module and the magnetic fluid driving module, and the power supply module is also connected with the magnetic fluid driving module; the waveform processing module is used for processing the audio signals provided by the sound equipment and transmitting the processed audio signals to the magnetic fluid driving module, the power supply module is used for providing corresponding voltage for the waveform processing module and the magnetic fluid driving module, and the magnetic fluid driving module is used for driving the magnetic fluid to flow after generating driving signals according to the processed audio signals. The audio signal is processed by the waveform processing module and then output to the magnetic fluid driving module, so that the magnetic fluid driving module drives the magnetic fluid to flow, the magnetic fluid is driven to flow along with the audio signal, the functions and the expression forms of the magnetic fluid driving module (electromagnet) are increased, and the user experience is improved.

Drawings

FIG. 1 is a block diagram of the magnetic fluid driving circuit provided by the present invention;

fig. 2 is a circuit diagram of a magnetic fluid driving circuit provided by the present invention.

Reference numerals: 10: a magnetic fluid drive circuit; 20: sounding; 30: a magnetic fluid; 100: a waveform processing module; 110: a filtering unit; 120: a waveform conversion unit; 130: a signal amplification unit; 200: a power supply module; 210: a first power supply unit; 220: a second power supply unit; 230: a third power supply unit; 300: a magnetic fluid drive module; r1: a first resistor; r2: a second resistor; r3: a third resistor; r4: a fourth resistor; r5: a fifth resistor; q1: a first triode; q2: a second triode; v1: a first power supply port; v2: a second power supply port; u1: a photoelectric coupler; d1: a first diode; d2: a second diode; c1: a first capacitor; c2: a second capacitor; c3: a third capacitor; l1: an electromagnet; j1: an interface.

Detailed Description

In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

According to the magnetic fluid driving circuit and the magnetic fluid driving terminal device, the audio signals are processed by the waveform processing module and then output to the magnetic fluid driving module, and then the magnetic fluid driving module drives the magnetic fluid to flow according to the processed audio signals, so that the magnetic fluid is driven to flow along with the audio signals, the functions and the expression forms of the magnetic fluid driving module (electromagnet) are increased, and the user experience is improved.

The following describes a design scheme of a magnetic fluid driving circuit by specific exemplary embodiments, and it should be noted that the following embodiments are only used to explain technical schemes of the utility model, and are not specifically limited:

referring to fig. 1, a magnetic fluid driving circuit 10 according to the present invention is respectively connected to a speaker 20 and a magnetic fluid 30, and the magnetic fluid driving circuit 10 includes: the device comprises a waveform processing module 100, a power supply module 200 and a magnetic fluid driving module 300; the waveform processing module 100 is respectively connected with the power supply module 200 and the magnetic fluid driving module 300, and the power supply module 200 is further connected with the magnetic fluid driving module 300; the waveform processing module 100 is configured to process an audio signal provided by the sound 20 and transmit the processed audio signal to the magnetic fluid driving module 300, the power supply module 200 is configured to provide corresponding voltages for the waveform processing module 100 and the magnetic fluid driving module 300, and the magnetic fluid driving module 300 is configured to generate a driving signal according to the processed audio signal and then drive the magnetic fluid 30 to flow. In the embodiment, the sound 20 is connected with the magnetic fluid driving circuit 10 through an interface J1; the magnetofluid drive module 300 is an electromagnet L1; the magnetic fluid 30 is placed on the electromagnet L1.

Specifically, firstly, the power supply module 200 provides corresponding voltages (a first voltage, a second voltage, and a third voltage) for the waveform processing module 100 and the magnetic fluid driving module 300, so that the waveform processing module 100 and the magnetic fluid driving module 300 can work normally, then, the power amplifier circuit in the audio 20 provides the periodic audio signal to the waveform processing module 100, the waveform processing module 100 performs filtering, conversion, amplification, and other processing on the audio signal, and transmits the processed audio signal (a half-periodic signal) to the magnetic fluid driving module 300, and finally, the magnetic fluid driving module 300 generates a driving signal according to the processed audio signal, and then drives the magnetic fluid 30 to flow.

In the utility model, the magnetic fluid processing module is used for filtering, converting, amplifying and the like the audio signal transmitted by the sound equipment 20, then the magnetic fluid driving module 300 is used for driving the magnetic fluid 30 to flow according to the processed audio signal, so that the shape change of the magnetic fluid 30 is shown, the display of different shapes is achieved, the magnetic fluid 30 flows according to the frequency of the audio signal, the expression form and the application of the magnetic fluid 30 are increased, a new point of purchase is brought, the product expression is richer, the user experience is effectively improved, and the added value of the product is increased. In addition, the magnetic fluid driving circuit 10 is an independent unit, can stably work, and can not influence the original circuit of the sound equipment to cause interference; a plurality of independent magnetic fluid driving circuits 10 can be duplicated in one product, so that a plurality of magnetic fluids 30 can be controlled to perform different physical changes at the same time.

Further, the waveform processing module 100 includes: a filtering unit 110, a waveform converting unit 120, and a signal amplifying unit 130; the filtering unit 110, the waveform converting unit 120 and the signal amplifying unit 130 are connected in sequence; the filtering unit 110 is configured to perform filtering processing on the audio signal to generate a filtered signal, and transmit the filtered signal to the waveform converting unit 120, the waveform converting unit 120 is configured to perform waveform converting processing on the filtered signal to obtain a waveform converted signal, and transmit the waveform converted signal to the signal amplifying unit 130, and the signal amplifying unit 130 is configured to amplify the waveform converted signal to obtain an amplified signal, and transmit the amplified signal to the magnetic fluid driving module 300.

Specifically, first, the power supply module 200 provides corresponding voltages for the waveform processing module 100 and the magnetic fluid driving module 300, and then the audio 20 provides the audio signal to the filtering unit 110, the filtering unit 110 performs filtering processing on the audio signal to filter frequencies outside a music frequency response range to obtain the filtered signal, the filtering unit 110 further transmits the filtered signal to the waveform converting unit 120, then the waveform converting unit 120 performs waveform converting processing on the filtered signal to convert a periodic audio signal into a half-periodic waveform converted signal, the waveform converting unit 120 transmits the waveform converted signal to the signal amplifying unit 130, and the signal amplifying unit 130 amplifies the waveform converted signal to amplify the current and voltage of the waveform converted signal, therefore, the capability of driving the electromagnet L1 is improved, an amplified signal is obtained after amplification, and the signal amplification unit 130 transmits the amplified signal to the magnetofluid driving module 300, so that the magnetofluid driving module 300 can perform the next operation. Since the audio signal is a periodic signal, the complete signal is a positive and negative alternating current signal, and the magnetic pole of the electromagnet L1 is changed by the current direction, the magnetic pole is turned when the current direction changes, and an eddy current is generated during the turning of the magnetic pole, which causes the electromagnet L1 to generate heat, which is useless for the whole circuit and delays the magnetic force, the periodic signal needs to be converted into a half-period signal to reduce the adverse effect of the periodic signal on the whole circuit.

In the utility model, the filtering unit 110, the waveform conversion unit 120 and the signal amplification unit 130 are used for respectively carrying out filtering, waveform conversion and amplification treatment on the audio signal, so that the frequency outside the music frequency response range is effectively filtered, the adverse effect caused by the heating of the electromagnet L1 is improved, and the driving capability is improved. Moreover, if a plurality of electromagnets L1 are needed in one product, a plurality of electromagnets L1 may be connected in parallel, so as to control a plurality of electromagnets L1 to drive the magnetic fluid 30 to perform the same shape change.

Further, referring to fig. 2, the filtering unit 110 includes: a first resistor R1 and a first capacitor C1; one end of the first resistor R1 is connected to the audio device 20, the other end of the first resistor R1 is connected to one end of the first capacitor C1 and the waveform conversion unit 120, and the other end of the first capacitor C1 is grounded.

The first resistor R1 and the first capacitor C1 form an RC filter circuit, so that frequencies outside a music frequency response range can be effectively filtered, interference of signals except for the frequencies is eliminated, and high-frequency interference signals can be introduced into the ground layer through the first capacitor C1.

Further, the waveform converting unit 120 includes: a second resistor R2 and a photoelectric coupler U1; the 1 st pin of the photocoupler U1 is connected to the other end of the first resistor R1, the 2 nd pin of the photocoupler U1 is connected to one end of the second resistor R2, the other end of the second resistor R2 is grounded, the 3 rd pin of the photocoupler U1 is connected to the signal amplification unit 130, and the 4 th pin of the photocoupler U1 is connected to the power supply module 200.

The photocoupler U1 is a photoelectric output device, and is used not only for waveform conversion to convert the periodic audio signal into a semi-periodic waveform conversion signal, but also for isolation to convert the audio signal of an electrical signal into an optical signal, and then the waveform conversion signal converted into the electrical signal effectively isolates the influence of other input electrical signals on the waveform conversion signal; and the intensity of the waveform conversion signal output by the photocoupler U1 can be controlled by controlling and adjusting the size of the second resistor R2, so as to be matched with a circuit.

Further, the signal amplifying unit 130 includes: the circuit comprises a third resistor R3, a first triode Q1 and a second triode Q2; one end of the third resistor R3 is connected to the 3 rd pin of the photocoupler U1, the other end of the third resistor R3 is connected to the base of the first triode Q1, the emitter of the first triode Q1 is connected to the base of the second triode Q2, the collector of the first triode Q1 is connected to the collector of the second triode Q2, the power supply module 200 and the magnetic fluid driving module 300, the emitter of the second triode Q2 is grounded, and the collector of the second triode Q2 is connected to the power supply module 200 and the magnetic fluid driving module 300.

The first triode Q1 and the second triode Q2 are current amplification devices, and the current and the voltage amplified by the first triode Q1 and the second triode Q2 can drive the electromagnet L1 to generate a variable magnetic force, and can be combined according to the current and the voltage required by the electromagnet L1, so as to achieve the best effect of driving the magnetic fluid 30.

Further, the power supply module 200 includes: a first power supply unit 210, a second power supply unit 220, and a third power supply unit 230; the first power supply unit 210 is respectively connected to the waveform processing module 100 and the second power supply unit 220, the second power supply unit 220 is further respectively connected to the waveform processing module 100, the third power supply unit 230 and the magnetic fluid driving module 300, and the third power supply unit 230 is further respectively connected to the waveform processing module 100 and the magnetic fluid driving module 300; the first power supply unit 210 is configured to provide a first voltage to the waveform processing module 100, the second power supply unit 220 is configured to provide a second voltage to the waveform processing module 100, and the third power supply unit 230 is configured to provide a third voltage to the magnetic fluid driving module 300.

Specifically, in order to ensure that the waveform processing module 100 and the magnetic fluid drive module 300 can normally operate, first, corresponding voltages need to be provided to the waveform processing module 100 and the magnetic fluid drive module 300, then, the first power supply unit 210 provides the first voltage to the photocoupler U1 to allow the photocoupler U1 to normally operate, and simultaneously, the second power supply unit 220 provides the second voltage to the first triode Q1 and the second triode Q2, so that the first triode Q1 and the second triode Q2 can be in a saturation region, and the third power supply unit 230 provides a third voltage to the magnetic fluid drive module 300, so that the magnetic fluid drive module 300 can normally operate. The utility model discloses in pass through first power supply unit 210 second power supply unit 220 with third power supply unit 230 provides respectively first voltage the second voltage with the third voltage extremely optoelectronic coupler U1, first triode Q1 with second triode Q2, and magnetic fluid drive module 300, thereby let optoelectronic coupler U1, first triode Q1 with the work that second triode Q2 homoenergetic is normal, has ensured the power supply safety of components and parts effectively for the work of circuit can normally go on.

Further, the first power supply unit 210 includes: a second capacitor C2, a fourth resistor R4 and a first power port V1; one end of the second capacitor C2 is connected to one end of the fourth resistor R4, the first power port V1 and the second power supply unit 220, the other end of the second capacitor C2 is grounded, and the other end of the fourth resistor R4 is connected to the waveform processing module 100. The voltage input by the first power port V1 is generally the same as the power supply voltage of the power amplifier circuit of the audio 20; the second capacitor C2 filters the voltage input from the first power port V1.

Specifically, the fourth resistor R4 divides the voltage input from the first power port V1 to obtain the first voltage, and transmits the first voltage to the 4 th pin of the photocoupler U1, so as to operate the light receiver in the photocoupler U1.

Further, the second power supply unit 220 includes: a first diode D1 and a fifth resistor R5; the anode of the first diode D1 is connected to one end of the second capacitor C2, one end of the fourth resistor R4 and the first power port V1, the cathode of the first diode D1 is connected to one end of the fifth resistor R5, and the other end of the fifth resistor R5 is connected to the waveform processing module 100, the third power supply unit 230 and the magnetic fluid driving module 300. Wherein the first diode D1 may prevent the third voltage provided by the third power supply unit 230 from crosstalk to the first power port V1.

Specifically, the fifth resistor R5 divides the voltage input from the first power port V1 to obtain the second voltage, and transmits the second voltage to the collector of the first diode D1 and the collector of the second diode D2, so that the first transistor Q1 and the second transistor Q2 can be in a saturation region.

Further, the third power supply unit 230 includes: a third capacitor C3, a second diode D2, and a second power port V2; one end of the third capacitor C3 is connected to the cathode of the second diode D2, the second power port V2 and the magnetic fluid driving module 300, the other end of the third capacitor C3 is grounded, and the anode of the second diode D2 is connected to the other end of the fifth resistor R5, the waveform processing module 100 and the magnetic fluid driving module 300.

The third capacitor C3 filters the voltage input by the second power port V2; the second transistor Q2 is a protection diode to prevent the damage of the driving circuit caused by the reverse voltage (the reverse voltage is one of the parameters of the rectifier tube, for example, when the diode is used for rectification, when the anode potential is negative relative to the cathode potential, the voltage applied to the diode is the reverse voltage in the period of no working current passing. The voltage input from the second power port V2 is the power supply voltage of the mhd drive module 300, and the magnitude of the voltage needs to be determined according to the working requirement of the mhd drive module 300.

Further, the magnetic fluid drive module 300 includes: an electromagnet L1; one end of the electromagnet L1 is connected to one end of the third capacitor C3, the cathode of the second diode D2 and the second power port V2, and the other end of the electromagnet L1 is connected to the collector of the first triode Q1, the collector of the second triode Q2, the other end of the fifth resistor R5 and the anode of the second diode D2.

Specifically, the magnetofluid magnet is placed above a magnetic line of force of an electromagnet L1, the current and the voltage of the waveform conversion signal are amplified by the first triode Q1 and the second triode Q2, and the amplified signal is sent to the electromagnet L1, so that the electromagnet L1 is driven to generate a changing magnetic force, and finally, the electromagnet L1 generates the driving signal (changing magnetic force) according to the amplified signal, so as to drive the shape of the magnetofluid magnet to change correspondingly. By changing the magnetic force of the electromagnet L1 according to the audio signal, thereby changing the shape of the magnetofluid magnet accordingly, it is possible to effectively realize that the shape of the magnetofluid magnet changes with the change in frequency of the audio signal.

For a better understanding of the present invention, the working principle of the magnetic fluid drive circuit 10 of the present invention is explained in detail below with reference to fig. 2:

firstly, the fourth resistor R4 divides the voltage input from the first power port V1 to obtain the first voltage, and transmits the first voltage to the 4 th pin of the photocoupler U1, and the fifth resistor R5 divides the voltage input from the first power port V1 to obtain the second voltage, and transmits the second voltage to the collector of the first diode D1 and the collector of the second diode D2, and the voltage input from the first power port V1 directly provides the third voltage to the electromagnet L1; then, a power amplifier circuit in the audio 20 provides the periodic audio signal to the first resistor R1 and the first capacitor C1, an RC filter circuit composed of the first resistor R1 and the first capacitor C1 filters the audio signal to obtain the filtered signal, and transmits the filtered signal to the 1 st pin of the photocoupler U1; then, the photocoupler U1 converts the filtered signal of the electrical signal into an electrical signal, and then converts the electrical signal into a waveform conversion signal of the electrical signal, that is, a half-periodic waveform conversion signal, the photocoupler U1 sequentially transmits the waveform conversion signal to the first triode Q1 and the second triode Q2, amplifies the waveform conversion signal by the first triode Q1 and the second triode Q2 to obtain the amplified signal, and transmits the amplified signal to the electromagnet L1, and finally, the electromagnet L1 generates the driving signal according to the amplified signal to drive the shape of the magnetofluid to change correspondingly.

Further, the utility model also correspondingly provides a magnetofluid driving terminal device, which comprises a PCB board, wherein the magnetofluid driving circuit 10 is arranged on the PCB board; since the magnetic fluid driving circuit 10 is described in detail above, it is not described herein again.

In summary, according to the magnetic fluid driving circuit and the magnetic fluid driving terminal device provided by the present invention, the magnetic fluid driving circuit is respectively connected to the audio and the magnetic fluid, and the magnetic fluid driving circuit includes: the device comprises a waveform processing module, a power supply module and a magnetic fluid driving module; the waveform processing module is used for processing audio signals provided by the sound equipment and transmitting the processed audio signals to the magnetic fluid driving module, the power supply module is used for providing corresponding voltage for the waveform processing module and the magnetic fluid driving module, and the magnetic fluid driving module is used for driving the magnetic fluid to flow after generating driving signals according to the processed audio signals. The audio signals are processed by the waveform processing module and then output to the magnetic fluid driving module, so that the magnetic fluid driving module drives the magnetic fluid to flow, the magnetic fluid is driven to flow along with the audio signals, the functions and the expression forms of the magnetic fluid driving module (electromagnet) are increased, and the user experience is improved.

It should be understood that the technical solutions and the inventive concepts according to the present invention may be equally replaced or changed by those skilled in the art, and all such changes or substitutions should fall within the protection scope of the appended claims.

Claims

1. A magnetic fluid driving circuit is respectively connected with a sound device and a magnetic fluid, and is characterized by comprising: the device comprises a waveform processing module, a power supply module and a magnetic fluid driving module; the waveform processing module is respectively connected with the power supply module and the magnetic fluid driving module, and the power supply module is also connected with the magnetic fluid driving module; the waveform processing module is used for processing the audio signals provided by the sound equipment and transmitting the processed audio signals to the magnetic fluid driving module, the power supply module is used for providing corresponding voltage for the waveform processing module and the magnetic fluid driving module, and the magnetic fluid driving module is used for driving the magnetic fluid to flow after generating driving signals according to the processed audio signals.

2. The magnetic fluid drive circuit according to claim 1 wherein the waveform processing module comprises: the device comprises a filtering unit, a waveform conversion unit and a signal amplification unit; the filtering unit, the waveform conversion unit and the signal amplification unit are sequentially connected; the filtering unit is used for filtering the audio signal to generate a filtering signal and transmitting the filtering signal to the waveform conversion unit, the waveform conversion unit is used for performing waveform conversion processing on the filtering signal to obtain a waveform conversion signal and transmitting the waveform conversion signal to the signal amplification unit, and the signal amplification unit is used for amplifying the waveform conversion signal to obtain an amplification signal and transmitting the amplification signal to the magnetic fluid driving module.

3. The magnetic fluid drive circuit according to claim 1 wherein the power supply module comprises: the power supply device comprises a first power supply unit, a second power supply unit and a third power supply unit; the first power supply unit is respectively connected with the waveform processing module and the second power supply unit, the second power supply unit is also respectively connected with the waveform processing module, the third power supply unit and the magnetic fluid driving module, and the third power supply unit is also respectively connected with the waveform processing module and the magnetic fluid driving module; the first power supply unit is used for providing a first voltage to the waveform processing module, the second power supply unit is used for providing a second voltage to the waveform processing module, and the third power supply unit is used for providing a third voltage to the magnetic fluid driving module.

4. The magnetic fluid drive circuit according to claim 2, wherein the filter unit comprises: a first resistor and a first capacitor; one end of the first resistor is connected with the sound box, the other end of the first resistor is respectively connected with one end of the first capacitor and the waveform conversion unit, and the other end of the first capacitor is grounded.

5. The magnetic fluid drive circuit according to claim 4, wherein the waveform converting unit comprises: a second resistor and a photoelectric coupler; the 1 st pin of the photoelectric coupler is connected with the other end of the first resistor, the 2 nd pin of the photoelectric coupler is connected with one end of the second resistor, the other end of the second resistor is grounded, the 3 rd pin of the photoelectric coupler is connected with the signal amplification unit, and the 4 th pin of the photoelectric coupler is connected with the power supply module.

6. The magnetic fluid drive circuit according to claim 5, wherein the signal amplification unit comprises: the third resistor, the first triode and the second triode; one end of the third resistor is connected with a pin 3 of the photoelectric coupler, the other end of the third resistor is connected with a base electrode of the first triode, an emitting electrode of the first triode is connected with a base electrode of the second triode, a collecting electrode of the first triode is respectively connected with a collecting electrode of the second triode, the power supply module and the magnetic fluid driving module, an emitting electrode of the second triode is grounded, and a collecting electrode of the second triode is respectively connected with the power supply module and the magnetic fluid driving module.

7. The magnetic fluid drive circuit according to claim 3 wherein the first power supply unit comprises: the second capacitor, the fourth resistor and the first power supply port; one end of the second capacitor is connected with one end of the fourth resistor, the first power supply port and the second power supply unit respectively, the other end of the second capacitor is grounded, and the other end of the fourth resistor is connected with the waveform processing module.

8. The magnetic fluid drive circuit according to claim 7 wherein the second power supply unit comprises: a first diode and a fifth resistor; the anode of the first diode is connected with one end of the second capacitor, one end of the fourth resistor and the first power supply port respectively, the cathode of the first diode is connected with one end of the fifth resistor, and the other end of the fifth resistor is connected with the waveform processing module, the third power supply unit and the magnetic fluid driving module respectively.

9. The magnetic fluid drive circuit according to claim 8 wherein the third power supply unit comprises: a third capacitor, a second diode and a second power supply port; one end of the third capacitor is connected with the cathode of the second diode, the second power supply port and the magnetic fluid driving module respectively, the other end of the third capacitor is grounded, and the anode of the second diode is connected with the other end of the fifth resistor, the waveform processing module and the magnetic fluid driving module respectively.

10. A magnetic fluid driving terminal device, which comprises a PCB board, and is characterized in that the magnetic fluid driving circuit as claimed in any one of claims 1-9 is arranged on the PCB board.