CN208433976U - A kind of anti-jamming circuit and electronic equipment - Google Patents
A kind of anti-jamming circuit and electronic equipment Download PDFInfo
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- CN208433976U CN208433976U CN201821213360.XU CN201821213360U CN208433976U CN 208433976 U CN208433976 U CN 208433976U CN 201821213360 U CN201821213360 U CN 201821213360U CN 208433976 U CN208433976 U CN 208433976U
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Abstract
The utility model discloses a kind of anti-jamming circuit and electronic equipment, which includes power amplifier module, bluetooth module, the first power module for powering to power amplifier module and the second power supply module for powering to bluetooth module；Power amplifier module is connect with bluetooth module；The ground terminal of first power module and the ground terminal of power amplifier module connect；The ground terminal of second power supply module and the ground terminal of bluetooth module connect, and the ground terminal of the ground terminal and second power supply module of the first power module is separated.Pass through the embodiments of the present invention, in the case where power amplifier module and bluetooth module, it is respectively power amplifier module and bluetooth module power supply using different power modules, so that it may avoid power amplifier module and bluetooth module from occurring to interfere altogether, user experience can be promoted.
Description
Technical field
The utility model relates to technical field of circuit design, more specifically, the utility model relates to a kind of anti-jamming circuits
And electronic equipment.
Background technique
Bluetooth is a kind of wireless technology standard, it can be achieved that short-range data exchanges.It is also set in the equipment such as existing massage armchair
It is equipped with bluetooth module, media device (such as can be the electronic products such as mobile phone, tablet computer, computer) is received by bluetooth module
The audio signal sent by bluetooth, and massage armchair is vibrated according to the frequency of audio signal.
The working principle of the circuit is the digital audio and video signals that bluetooth module receives that media device is sent by bluetooth, and will
Digital audio and video signals are converted to analog audio signal.Power amplifier module carries out power amplification to analog audio signal and handles to obtain
Amplify audio signal, and is vibrated according to amplification audio-signal-driven motor.In this way, the vibration frequency of motor can be with reception
The frequency of the digital audio arrived is identical.
Fig. 1 is the electrical block diagram of motor drive circuit in existing massage armchair.As shown in Figure 1, existing motor
In driving circuit, including power module 100, power amplifier module U3 and bluetooth module U4, power amplifier module U3 and bluetooth mould
Block connection.The power module 100 is powered to power amplifier module U3 and bluetooth module U4 simultaneously.The ground terminal of power module 100
The ground terminal GND4 of the ground terminal GND3 and bluetooth module U4 of GND1, power amplifier module U3 are connect, this allows for power amplification
The ground terminal GND4 of module U3 and bluetooth module U4 is altogether.Ground wire theoretically should be as public signal return flow path
Do not have resistive, but actual conditions are really not so.The pressure drop that the reflux of unlike signal generates on ground wire can become mutual
Interference.
If the back flow current of power amplifier module produces an error voltage on ground wire, can make bluetooth module by
To interference, that is, has occurred and interfere altogether.When extraneous media device signals, motor still can generate irregular vibration,
Influence user experience.
Utility model content
One purpose of the utility model is to provide a kind of new technical solution for being at least able to solve one of above problem.
One aspect according to the present utility model provides a kind of anti-jamming circuit, including power amplifier module, bluetooth mould
Block, the first power module for powering to the power amplifier module and for powering to the bluetooth module second electricity
Source module；The power amplifier module is connect with the bluetooth module；The ground terminal and the power of first power module
The ground terminal of amplification module connects；The ground terminal of the second power supply module is connect with the ground terminal of the bluetooth module, and institute
State the separated of the ground terminal of the first power module and the ground terminal of the second power supply module.
Optionally, the anti-jamming circuit further includes the power interface for connecting alternating current, first power module
It is connect with the power interface.
Optionally, first power module includes the first transformer unit, the first rectification unit, the first filtering list
Member and the first voltage regulator circuit, first transformer unit are connected between the power interface and first rectification unit,
First filter unit is connected between first rectification unit and first voltage regulation unit, first voltage regulation unit
It is connect with the power amplifier module.
Optionally, the anti-jamming circuit further includes the power interface for connecting alternating current, the second power supply module
It is connect with the power interface.
Optionally, the second power supply module includes the second transformer unit, the second rectification unit, the second filtering list
Member and the second voltage regulator circuit, second transformer unit are connected between the power interface and second rectification unit,
Second filter unit is connected between second rectification unit and second voltage regulation unit, second voltage regulation unit
It is connect with the bluetooth module.
Optionally, the anti-jamming circuit further includes decoder module, and the decoder module is connected to the bluetooth module
Between the power amplifier module.
Optionally, the anti-jamming circuit further includes motor, and the power amplifier module is connect with the motor.
Optionally, the anti-jamming circuit further includes loudspeaker, and the power amplifier module also connects with the loudspeaker
It connects.
Second aspect according to the present utility model provides a kind of electronic equipment, including according to the utility model first party
Anti-jamming circuit described in face.
Optionally, the electronic equipment is massage armchair.
One of the utility model has technical effect that, by the embodiments of the present invention, in power amplifier module and
It is respectively that power amplifier module and bluetooth module are powered using different power modules, so that it may keep away in the case where bluetooth module
Exempt from power amplifier module and bluetooth module generation is interfered altogether, user experience can be promoted.
By the detailed description referring to the drawings to the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will become apparent.
Detailed description of the invention
The attached drawing for constituting part of specification describes the embodiments of the present invention, and uses together with the description
In explanation the principles of the present invention.
Fig. 1 is the electrical block diagram of existing motor drive circuit；
Fig. 2 is the frame principle figure according to a kind of implementation structure of the utility model anti-jamming circuit；
Fig. 3 is another frame principle figure for implementing structure according to the utility model anti-jamming circuit；
Fig. 4 is the circuit diagram according to a kind of implementation structure of the first power module of the utility model.
Description of symbols:
The first power module of U1-；U2- second power supply module；
U3- power amplifier module；U4- bluetooth module；
U5- decoder module；The first transformer unit of U11-；
The first rectification unit of U12-；The first filter unit of U13-；
The first voltage regulation unit of U14-；The second transformer unit of U21-；
The second rectification unit of U22-；The second filter unit of U23-；
The second voltage regulation unit of U24-；M- motor；
SPK- loudspeaker；J1- power interface；
L0- firewire connecting pin；N0- zero curve connecting pin；
D1~D4- diode；C1, C2- capacitor；
100- power module.
Specific embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should also be noted that unless another
It illustrates outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.
Technology and equipment known to person of ordinary skill in the relevant may be not discussed in detail, but in appropriate situation
Under, the technology and equipment should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Fig. 2 is the frame principle figure according to a kind of implementation structure of the utility model anti-jamming circuit.
According to Fig.2, the anti-jamming circuit include power amplifier module U3, bluetooth module U4, the first power module U1,
And second power supply module U2.Power amplifier module U3 is connected with bluetooth module U4.
First power module U1 powers to power amplifier module U3, and second power supply module U2 powers to bluetooth module.Therefore,
The power end VCC3 of the power output end VCC1 and power amplifier module U3 of first power module U1 are connect, the first power module U1
Ground terminal GND1 connect with the ground terminal GND3 of power amplifier module U3；The power output end VCC2 of second power supply module U2 with
The power end VCC4 connection of bluetooth module U4, the ground terminal GND4 of the ground terminal GND2 and bluetooth module U4 of second power supply module U2
Connection.
The ground terminal GND2's of the ground terminal GND1 and second power supply module U2 of first power module U1 is separated.
In this way, being respectively that power amplifier module U3 and bluetooth module U4 powers using different power module U1, U2, so that it may
It is interfered altogether to avoid power amplifier module U3 and bluetooth module U4 generation, user experience can be promoted.
In one example, as shown in figure 3, the anti-jamming circuit can also include the power interface for connecting alternating current
J1.It is provided with the firewire connecting pin L0 for connecting alternating current firewire on power interface and the zero curve for connecting alternating current zero curve connects
Meet end N0.
First power module U1 can be connect with power interface J1.As shown in figure 3, first power module U1 can also be wrapped
Include first input end IN11 and the second input terminal IN12.First input end IN11 is connect with firewire connecting pin L0, the second input terminal
IN12 is connect with zero curve connecting pin N0.First power module U1, which is arranged to be converted to alternating current, to be used for as power amplifier module U3
The power supply signal of power supply.
On this basis, first power module U1 may include the first transformer unit U11 as shown in Figure 3, first
Rectification unit U12, the first filter unit U13 and the first voltage regulation unit U14, the first transformer unit U11 are connected to power interface
Between J1 and the first rectification unit U12, the first filter unit U13 is connected to the first rectification unit U12 and the first voltage regulation unit U14
Between, the first voltage regulation unit U14 is connect with power amplifier module U3.
First transformer unit U11 can use the principle of electromagnetic induction to change the voltage of city's electric signal of input, obtain
To transformation city electric signal.The transformation alternating current signal rectification that first rectification unit U12 can be used for exchange is the transformation city of direct current
Electric signal.First filter unit U13 can be used for being filtered the transformation city electric signal of direct current.First voltage regulation unit
U14 can carry out steady pressure treatment to signal is obtained after filtering processing, obtain the power supply electricity for powering to power amplifier module U3
Pressure.
Specifically, as shown in figure 3, the first input end IN111 of the first transformer unit U11 is as the first power module U1
First input end IN11, connect with firewire connecting pin L0.The second input terminal IN112 of first transformer unit U11 is as
The second input terminal IN12 of one power module U1, connect with zero curve connecting pin N0.The first input end of first rectification unit U12
IN121 is connect with the first output end OUT111 of the first transformer unit U11, the second input terminal of the first rectification unit U12
IN122 is connect with the second output terminal OUT112 of the first transformer unit U11.The first output end of first rectification unit U12
OUT121 is connect with the input terminal IN14 of the first voltage regulation unit U14, the second output terminal OUT122 of the first rectification unit U12 and
The ground terminal GND14 connection of one voltage regulation unit.First filter unit U13 is connected to the first output end of the first rectification unit U12
Between OUT121 and second output terminal OUT122, i.e. a connecting pin IN131 of the first filter unit U13 and the first rectification unit
The first output end OUT121 connection of U12, another connecting pin IN132 of the first filter unit U13 and the first rectification unit U12
Second output terminal OUT122 connection.Ground terminal of the ground terminal GND14 of first voltage regulation unit U14 as the first power module U1
GND1 is connect with the ground terminal GND3 of power amplifier module U3.The output end OUT14 of first voltage regulation unit U14 is as the first electricity
The power end VCC1 of source module U1 is connect with the power end VCC3 of power amplifier module U3.
In one example, the first transformer unit U11, the first rectification unit U12, the first filter unit U13 and first
Voltage regulation unit U14 can be by circuit structure offer as shown in Figure 4.
As shown in figure 4, the first rectification unit U12 can be the bridge rectifier being made of diode D1~D4.First
Filter unit U13 can be to be provided by capacitor C1 and C2.First voltage regulation unit U14 can be the pressure stabilizing core by model LM7805
Piece provides.
As shown in figure 3, second power supply module U2 can also be connect with power interface J1.Specifically, the second source mould
Block U2 can also include first input end IN21 and the second input terminal IN22.First input end IN21 and firewire connecting pin L0 connects
It connects, the second input terminal IN22 is connect with zero curve connecting pin N0.Second power supply module U2 be arranged to be converted to alternating current be used for for
The power supply signal of bluetooth module U4 power supply.
On this basis, second power supply module U2 may include the second transformer unit U21 as shown in Figure 3, second
Rectification unit U22, the second filter unit U23 and the second voltage regulation unit U24, the second transformer unit U21 are connected to power interface
Between J1 and the second rectification unit U22, the second filter unit U23 is connected to the second rectification unit U22 and the second voltage regulation unit U24
Between, the second voltage regulation unit U24 is connect with bluetooth module U4.
Second transformer unit U21 can use the principle of electromagnetic induction to change the voltage of city's electric signal of input, obtain
To transformation city electric signal.The transformation alternating current signal rectification that second rectification unit U22 can be used for exchange is the transformation city of direct current
Electric signal.Second filter unit U23 can be used for being filtered the transformation city electric signal of direct current.Second voltage regulation unit
U24 can carry out steady pressure treatment to signal is obtained after filtering processing, obtain the supply voltage for powering to bluetooth module U4.
Specifically, as shown in figure 3, the second input terminal IN211 of the second transformer unit U21 is as second power supply module U2
First input end IN21, connect with firewire connecting pin L0.The second input terminal IN212 of second transformer unit U21 is as
The second input terminal IN22 of two power module U2, connect with zero curve connecting pin N0.The first input end of second rectification unit U22
IN221 is connect with the first output end OUT211 of the second transformer unit U21, the second input terminal of the second rectification unit U22
IN222 is connect with the second output terminal OUT212 of the second transformer unit U21.The first output end of second rectification unit U22
OUT221 is connect with the input terminal IN24 of the second voltage regulation unit U24, the second output terminal OUT222 of the second rectification unit U22 and
The ground terminal GND24 connection of two voltage regulation unit U24.Second filter unit U23 is connected to the first output of the second rectification unit U22
It holds between OUT221 and second output terminal OUT222, i.e. the rectification of a connecting pin IN231 of the second filter unit U23 and second is single
The first output end OUT221 connection of first U22, another connecting pin IN232 and the second rectification unit of the second filter unit U23
The second output terminal OUT222 connection of U22.Ground terminal GND24 the connecing as second power supply module U2 of second voltage regulation unit U24
Ground terminal GND2 is connect with the ground terminal GND4 of bluetooth module U4.The output end OUT14 of second voltage regulation unit U14 is as the second electricity
The power end VCC1 of source module U1 is connect with the power end VCC4 of bluetooth module U4.
In one example, the circuit structure of the first transformer unit U11 and the second transformer unit U21 can be identical,
First rectification unit U12 can be identical with the circuit structure of the second rectification unit U22, the filtering of the first filter unit U13 and second
The circuit structure of unit U23 can be identical, and the first voltage regulation unit U14 can be identical with the circuit structure of the second voltage regulation unit U24,
Specifically as shown in figure 4, details are not described herein.
In one example, as shown in figure 3, the anti-jamming circuit can also include decoder module U5.Decoder module U5
It is connected between power amplifier module U3 and bluetooth module U4.
Bluetooth module U4 can receive the digital audio and video signals that other electronic equipments are sent by bluetooth.The decoder module
The digital audio and video signals can be decoded processing by U5, obtain analog audio signal, and analog audio signal is sent to function
Rate amplification module U3 amplifies processing.
Further, which can also include motor M.Motor M is connect with power amplifier module U3.
Power amplifier module U3 amplifies processing to analog audio signal, and obtained amplification audio signal can be used for driving
Dynamic motor M vibration.And the vibration frequency of motor M is identical as the frequency of the amplification audio signal.So, motor M can be realized
As received audio signal irregularly shakes.
Still further, the anti-jamming circuit can also include loudspeaker SPK, loudspeaker SPK also with power amplification mould
Block connection.
Amplification audio signal can also be sent to loudspeaker SPK by power amplifier module U3, so that loudspeaker SPK can be broadcast
Put the received audio signal of the anti-jamming circuit.
In one example, the digital audio and video signals that bluetooth module U4 is received are stereosonic digital audio and video signals, should
Anti-jamming circuit includes left channel loudspeaker and right channel loudspeaker.Decoder module U5 can believe stereosonic digital audio
Number decoding process, obtains the analog audio signal of L channel and the analog audio signal of right channel.Power amplifier module U3 can be with
Processing is amplified to the analog audio signal of L channel, obtains the amplification audio signal of L channel, and L channel is amplified into sound
Frequency signal is sent to left channel loudspeaker and plays out.Power amplifier module U3 can also analog audio signal to right channel into
Row enhanced processing obtains the amplification audio signal of right channel, and right channel amplification audio signal is sent to right channel loudspeaker
It plays out.In addition, power amplifier module U3 can also amplify the amplification audio signal of L channel or the audio of right channel
Signal is sent to motor M, with drive motor M vibration.
The utility model additionally provides a kind of electronic equipment, which includes anti-jamming circuit above-mentioned.
In one example, which for example can be massage armchair.
The difference of the various embodiments described above primary focus description and other embodiments, but those skilled in the art should be clear
Chu, the various embodiments described above can according to need exclusive use or are combined with each other.
Although being described in detail by some specific embodiments of the example to the utility model, this field
It is to be understood by the skilled artisans that above example merely to be illustrated, rather than in order to limit the scope of the utility model.This
Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case where, to above embodiments
It modifies.The scope of the utility model is defined by the following claims.
Claims (10)
1. a kind of anti-jamming circuit, which is characterized in that including power amplifier module, bluetooth module, be used for the power amplification
First power module of module for power supply and second power supply module for powering to the bluetooth module；The power amplification mould
Block is connect with the bluetooth module；The ground terminal of first power module is connect with the ground terminal of the power amplifier module；
The ground terminal of the second power supply module is connect with the ground terminal of the bluetooth module, and the ground terminal of first power module
It is separated with the ground terminal of the second power supply module.
2. anti-jamming circuit according to claim 1, which is characterized in that the anti-jamming circuit further includes for connecting city
The power interface of electricity, first power module are connect with the power interface.
3. anti-jamming circuit according to claim 2, which is characterized in that first power module includes the first transformer
Unit, the first rectification unit, the first filter unit and the first voltage regulator circuit, first transformer unit are connected to the electricity
Between source interface and first rectification unit, first filter unit is connected to first rectification unit and described first
Between voltage regulation unit, first voltage regulation unit is connect with the power amplifier module.
4. anti-jamming circuit according to claim 1, which is characterized in that the anti-jamming circuit further includes for connecting city
The power interface of electricity, the second power supply module are connect with the power interface.
5. anti-jamming circuit according to claim 4, which is characterized in that the second power supply module includes the second transformer
Unit, the second rectification unit, the second filter unit and the second voltage regulator circuit, second transformer unit are connected to the electricity
Between source interface and second rectification unit, second filter unit is connected to second rectification unit and described second
Between voltage regulation unit, second voltage regulation unit is connect with the bluetooth module.
6. anti-jamming circuit according to any one of claims 1-5, which is characterized in that the anti-jamming circuit further includes
Decoder module, the decoder module are connected between the bluetooth module and the power amplifier module.
7. anti-jamming circuit according to claim 6, which is characterized in that the anti-jamming circuit further includes motor, described
Power amplifier module is connect with the motor.
8. anti-jamming circuit according to claim 6, which is characterized in that the anti-jamming circuit further includes loudspeaker, institute
Power amplifier module is stated also to connect with the loudspeaker.
9. a kind of electronic equipment, which is characterized in that including anti-jamming circuit according to claim 1 to 8.
10. electronic equipment according to claim 9, which is characterized in that the electronic equipment is massage armchair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821213360.XU CN208433976U (en) | 2018-07-27 | 2018-07-27 | A kind of anti-jamming circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821213360.XU CN208433976U (en) | 2018-07-27 | 2018-07-27 | A kind of anti-jamming circuit and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208433976U true CN208433976U (en) | 2019-01-25 |
Family
ID=65097181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821213360.XU Active CN208433976U (en) | 2018-07-27 | 2018-07-27 | A kind of anti-jamming circuit and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208433976U (en) |
-
2018
- 2018-07-27 CN CN201821213360.XU patent/CN208433976U/en active Active
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