CN109274148A - The power supply system and electronic equipment of voicefrequency circuit - Google Patents
The power supply system and electronic equipment of voicefrequency circuit Download PDFInfo
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- CN109274148A CN109274148A CN201811157097.1A CN201811157097A CN109274148A CN 109274148 A CN109274148 A CN 109274148A CN 201811157097 A CN201811157097 A CN 201811157097A CN 109274148 A CN109274148 A CN 109274148A
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- charging
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- 238000002955 isolation Methods 0.000 claims description 33
- 230000000087 stabilizing effect Effects 0.000 claims description 21
- 230000001681 protective effect Effects 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 9
- 238000003032 molecular docking Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003990 capacitor Substances 0.000 description 28
- 238000010276 construction Methods 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- H02J7/0077—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to a kind of power supply system of voicefrequency circuit and electronic equipments.The power supply system is connect with voicefrequency circuit, including battery module, charging module and control module, directly provides power supply to voicefrequency circuit by battery module, stability is good, and avoids the introducing of electromagnetic noise, can be improved the audio frequency effect of voicefrequency circuit；The connection relationship between charging module and battery module is controlled by control module simultaneously, and then realizes that charging module to the intelligent charge of battery module, so that battery module is constantly in ideal full power state, can be continuously voicefrequency circuit power supply.
Description
Technical field
The present invention relates to Audiotechnica fields, more particularly to the power supply system and electronic equipment of a kind of voicefrequency circuit.
Background technique
Increasingly developed with Audiotechnica, user is also higher and higher to the quality requirement of audio frequency power amplifier.Existing audio
Equipment is usually to connect power grid by power supply system to access power supply power supply to the device, while power supply system accesses power supply,
Huge interference source is introduced to the interior of shell of equipment, close to voicefrequency circuit, so that electromagnetism clutter directly makes voicefrequency circuit
At interference, the sound effect of audio frequency apparatus is influenced.Meanwhile the Voltage stabilizing module of voicefrequency circuit power supply system is as disturbing for power grid
It moves and generates overshoot output, to reduce the stability of system.
Therefore, existing power supply becomes the main interference source of voicefrequency circuit so that voicefrequency circuit there are power supplys not
The problem of stable and noise jamming.
Summary of the invention
Based on this, it is necessary to become the interference source of voicefrequency circuit for existing power supply, so that voicefrequency circuit exists
The problem of power supply is unstable and noise jamming, provides the power supply system and electronic equipment of a kind of voicefrequency circuit.
In order to achieve the object of the present invention, the present invention adopts the following technical scheme:
A kind of power supply system of voicefrequency circuit, connect with voicefrequency circuit, and the power supply system includes:
Battery module, the battery module connect the voicefrequency circuit, for providing power supply to the voicefrequency circuit；
Charging module charges for accessing power supply and when connecting the battery module to the battery module；
Control module, the control module are connected between the battery module and the charging module, for examining
The charging module and the battery pack are disconnected when measuring the output voltage values of the battery module greater than the first preset threshold
The charging module and the battery module are connected in the connection of module when the output voltage values are less than the second preset threshold
Connection.
Above-mentioned power supply system, connect with voicefrequency circuit, directly provides power supply to voicefrequency circuit by battery module, stablizes
Performance is good, and avoids the introducing of electromagnetic noise, can be improved the audio frequency effect of voicefrequency circuit；It is controlled simultaneously by control module
Connection relationship between charging module and battery module, and then realize that charging module to the intelligent charge of battery module, makes
It obtains battery module and is constantly in ideal full power state, voicefrequency circuit power supply can be continuously.
The power supply system in one of the embodiments, further include:
The input terminal of multiple isolation module, the multiple isolation module accesses power supply, the output of the multiple isolation module
End connects the input terminal of the charging module, for carrying out multiple isolation to the power supply and exporting to the charging module.
The power supply system in one of the embodiments, further include:
Protective module, the protective module are connected between the control module and the charging module, for described
When charging module charges to the battery module, the current direction of the charging module is limited.
The power supply system in one of the embodiments, further include:
Shroud module, shielding and the control module for the voicefrequency circuit and the battery module and described fills
The shielding of electric module；Wherein, respectively independent between two shieldings, not connected, the internal circuit between two shieldings is inserted by plug
Pull out connection.
The power supply system in one of the embodiments, further include:
Display module, the display module connects the control module, for showing the charging shape of the battery module
State.
The battery module includes positive battery group and negative battery group, the charging module in one of the embodiments,
Including the first charging module, the second charging module；
The control module includes:
First control module, first control module be connected to the positive battery group and first charging module it
Between, for disconnecting first charging when the first output voltage values for detecting the positive battery group are greater than the first preset threshold
The connection of module and the positive battery group is connected described first when first output voltage values are less than the second preset threshold and is filled
The connection of electric module and the positive battery group；
Second control module, second control module be connected to the negative battery group and second charging module it
Between, for disconnecting second charging when the second output voltage values for detecting the negative battery group are greater than the first preset threshold
The connection of module and the negative battery group is connected described second when second output voltage values are less than the second preset threshold and is filled
The connection of electric module and the negative battery group.
The multiple isolation module includes: in one of the embodiments,
First filter unit, the input terminal of first filter unit are the input terminal of the multiple isolation module, are used for
The power supply of access is filtered；
First isolated location, the input terminal of first isolated location connect the output end of first filter unit, use
It is isolated again in carrying out first to filtered power supply, and exports the first isolated power supply；
Second filter unit, the input terminal of second filter unit connect the output end of first isolated location, use
It is filtered in first isolated power supply；
Second isolated location, the input terminal of second isolated location connect the output end of second filter unit, institute
State the second isolated location output end be the multiple isolation module output end, for filtered first isolated power supply into
Row second is isolated again, and exports the second isolated power supply.
First charging module includes: in one of the embodiments,
First rectification unit, the power supply of the input terminal access of first rectification unit are whole for carrying out to the power supply
Stream obtains the first direct current；
The first end of first charging filter unit, the first charging filter unit connects the defeated of first rectification unit
Outlet, for being filtered to first direct current；
First pressure stabilizing current limiting unit, the input terminal connection of the first pressure stabilizing current limiting unit the first charging filter unit
Second end, for pressure stabilizing current limliting and export to filtered first direct current；
Second charging module includes:
Second rectification unit, the power supply of the input terminal access of second rectification unit, is rectified for the power supply,
Obtain the second direct current；
The first end of second charging filter unit, the second charging filter unit connects the defeated of second rectification unit
Outlet, for being filtered to second direct current；
Second pressure stabilizing current limiting unit, the input terminal connection of the second pressure stabilizing current limiting unit the second charging filter unit
Second end, for pressure stabilizing current limliting and export to the second direct current after filtering processing.
First control module includes: in one of the embodiments,
The input terminal of first comparing unit, first comparing unit accesses first output voltage values, for distinguishing
First output voltage values are compared with first preset threshold, second preset threshold, and described first
Output voltage values export the first cut-off signal when being greater than first preset threshold, are less than in first output voltage values described
Signal is connected in output first when the second preset threshold；
First switch unit, the controlled end of the first switch unit connect the output end of first comparing unit, use
In the connection for disconnecting first charging module Yu the positive battery group according to first cut-off signal, connects and believe according to first
Number connect the connection of first charging module and the positive battery group；
Second control module includes:
The input terminal of second comparing unit, second comparing unit accesses second output voltage values, for distinguishing
Second output voltage values are compared with first preset threshold, second preset threshold, and described second
Output voltage values export the second cut-off signal when being greater than first preset threshold, are less than in second output voltage values described
Signal is connected in output second when the second preset threshold；
Second switch unit, the controlled end of the second switch unit connect the output end of second comparing unit, use
In the connection for disconnecting second charging module Yu the negative battery group according to second cut-off signal, connects and believe according to second
Number connect the connection of second charging module and the negative battery group.
In order to achieve the object of the present invention, the present invention also adopts the following technical scheme that
A kind of electronic equipment, the electronic equipment include voicefrequency circuit, further include power supply system as described above.
Above-mentioned electronic equipment has the power supply system for the power supply for being capable of providing stable precision, efficiently avoids electromagnetic wave
Deng interference, guarantee the audio result of broadcast of electronic equipment；And has and play audio and for a long time progress sound while charging
The function that frequency plays, provides the Experience Degree of user.
Detailed description of the invention
Fig. 1 is the system construction drawing of power supply system in an embodiment；
Fig. 2 is the system construction drawing of power supply system in another embodiment；
Fig. 3 is in an embodiment in conjunction with the physical circuit figure of the power supply system of Fig. 1 and Fig. 2.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
It is the system construction drawing of power supply system in an embodiment referring to Fig. 1, Fig. 1.
In the present embodiment, which connect with voicefrequency circuit 100, including battery module 110, charging module
120 and control module 130.
Battery module 110, battery module 110 connect voicefrequency circuit 100, for providing power supply to voicefrequency circuit 100.
Charging module 120 charges for accessing power supply and when connecting battery module 110 to battery module 110.
Control module 130, control module 130 are connected between battery module 110 and charging module 120, for examining
Charging module 120 and battery module 110 are disconnected when measuring the output voltage values of battery module 110 greater than the first preset threshold
Connection, when output voltage values are less than the second preset threshold connect charging module 120 and battery module 110 connection.
In embodiments of the present invention, battery module 110 refers to the battery pack using pure chemistry energy storage for power supply, can be to sky
Voicefrequency circuit 100 under load or load condition provides power supply.Since the internal resistance of cell of battery pack is low, voltage regulation performance is good, and it is
Pure chemistry energy storage for power supply, thus power supply is provided to voicefrequency circuit 100 by battery module 110, stability is good, will not introduce
Electromagnetic noise can be improved acoustical quality.Wherein, battery module 110 includes that positive battery group and negative battery group, battery pack are positive and negative
Voltage can not wait.In one of the embodiments, battery module 110 can with internal battery super-charge super-discharge protector, such as
Independent over-charging of battery Cross prevention device or positive battery group is arranged in each battery unit and negative battery group is respectively arranged one and overcharges
Cross prevention device, to protect the battery pack of battery module 110.
In embodiments of the present invention, charging module 120 is to refer to and the connection of battery module 110 or isolated mould
Block charges for accessing power supply and when connecting battery module 110 to battery module 110；And with battery pack mould
When block 110 separates, being isolated for battery module 110 and power grid can be realized, to realize the dual of voicefrequency circuit 100 and power grid
Isolation.Specifically, charging module 120 is the charging module of constant current floating charge, only needs the charging current of power supply capacity 1/10th, has
The generation for inhibiting to effect its electromagnetic radiation, avoids the Electromagnetic Interference to voicefrequency circuit 100.
In embodiments of the present invention, control module 130 is to refer to examine the output voltage values of battery module 110
It surveys and compares, and control the module of charging module 120 and battery module 110 connected or disconnected according to comparison result.Tool
Body, control module 130 detects the output voltage values of battery module 110, and pre- by the first of the output voltage values and setting
If threshold value and the second preset threshold are compared, when output voltage values are greater than the first preset threshold, battery pack mould at this time is determined
Block 110 is electric full state, thus disconnects the connection of charging module 120 and battery module 110, such as disconnect charging module
120 with the common ground connection of battery module 110, battery module 110 and power grid is further isolated；And when output voltage values are small
When the second preset threshold, determine that battery module 110 is to need charged state, thus connect charging module 120 and electricity at this time
The connection of pond group module 110, such as connect the common ground connection of charging module 120 and battery module 110.Wherein, first is default
Threshold value and the second preset threshold are set according to the maximum output voltage of battery module 110, and the first preset threshold is
0.99Va, the second preset threshold are 0.75Va, wherein Va is the maximum output voltage of battery module 110.Pass through control module
130 control can disconnect automatically the company of charging module 120 Yu battery module 110 when 110 electricity of battery module is full of
It connects, the connection of turn on automatically charging module 120 and battery module 110 when battery module 110 needs to charge, to realize
To the intelligent charge of battery module 110, so that battery module 110 is constantly in ideal full power state, can be continuously
Voicefrequency circuit 100 is powered.
Power supply system provided in an embodiment of the present invention directly provides electricity to voicefrequency circuit 100 by battery module 110
Source, stability is good, and avoids the introducing of electromagnetic noise, can be improved the audio frequency effect of voicefrequency circuit；Pass through control simultaneously
Module 130 controls the connection relationship between charging module 120 and battery module 110, and then realizes charging module 120 to battery
The intelligent charge of group module 110 can be continuously audio-frequency electric so that battery module 110 is constantly in ideal full power state
Road 100 powers.
Referring to fig. 2, Fig. 2 is the system construction drawing of power supply system in another embodiment.
In the present embodiment, which connect with voicefrequency circuit 100, including battery module 110, charging module
120, control module 130, multiple isolation module 140, protective module 150, shroud module 160 and display module 170.
The associated description of battery module 110, charging module 120 and control module 130 is referring to upper in the present embodiment
One embodiment, details are not described herein.
In embodiments of the present invention, multiple isolation module 140 input terminal access power supply, multiple isolation module 140 it is defeated
Outlet connects the input terminal of charging module 120, for carrying out multiple isolation to power supply and exporting to charging module 120.By more
Weight isolation module 140 carries out multiple isolation between charging module 120 and power grid, and it is huge dry more efficiently to avoid power grid
Interference of the source to charging module 120 is disturbed, guarantees the stability that charging module 120 charges, and the audio for improving voicefrequency circuit 100 is broadcast
Put effect.
In embodiments of the present invention, protective module 150 is connected between charging module 120 and control module 130, is used for
When charging module 120 charges to battery module 110, the current direction of charging module is limited, so that charging module 120 can only be single
To for the charging of battery module 110, the current reflux of charging module 120 is prevented, improve the safety of charging module 120 and reliable
Property.
In embodiments of the present invention, shielding and control mould of the shroud module 160 for voicefrequency circuit and battery module 110
The shielding of block 130 and charging module 120, respectively independent between two shieldings, not connected, the internal circuits of two shieldings pass through plug
Plug connection, further realizes the isolation to interference source.Shroud module 160 includes being arranged in sound in one of the embodiments,
The first screen layer 1601 of 110 outer layer of frequency circuit and battery module and setting are in control module 130, charging module 120, multiple
The secondary shielding layer 1602 of 170 outer layer of isolation module 140, protective module 150 and display module, two shielded layers are respectively independent,
Not connected, the internal circuit of two shielded layers is plugged by plug to be connected.Further, connected by pluggable three-prong plug
It connects.
In embodiments of the present invention, 170 link control module 130 of display module, for by display charging module 120 with
The connection status of battery module 110, to further display the charged state of battery module 110.Pass through display module 170
It has been shown that, is conducive to the charging situation that user understands battery module 110 in real time.
Power supply system provided in an embodiment of the present invention directly provides electricity to voicefrequency circuit 100 by battery module 110
Source, multiple isolation module 140 import ground to interference electric current that may be present to the multiple isolation of power grid and shroud module 160,
It can be effectively prevented from interference of the interference source to voicefrequency circuit 100, guarantee the stability that voicefrequency circuit 100 inputs, and improve sound
The audio result of broadcast of frequency circuit 100；It is controlled between charging module 120 and battery module 110 by control module 130 simultaneously
The protection to charging module 120 of connection relationship and protective module 150, and then realize charging module 120 to battery module
110 intelligent charge can be continuously the confession of voicefrequency circuit 100 so that battery module 110 is constantly in ideal full power state
Electricity；And the charging situation of battery module 110 can also be understood in real time by 170 user of display module.
Battery module 110 includes positive battery group and negative battery group in one of the embodiments, and charging module 120 wraps
Include the first charging module, the second charging module；Control module 130 includes the first control module and the second control module.
First control module, the first control module are connected between positive battery group and the first charging module, for detecting
The connection of the first charging module Yu positive battery group is disconnected when being greater than the first preset threshold to the first output voltage values of positive battery group,
The connection of the first charging module Yu positive battery group is connected when the first output voltage values are less than the second preset threshold.
Second control module, the second control module are connected between negative battery group and the second charging module, for detecting
The connection of the second charging module Yu negative battery group is disconnected when being greater than the first preset threshold to the second output voltage values of negative battery group,
The connection of the second charging module Yu negative battery group is connected when the second output voltage values are less than the second preset threshold.
Specifically, the first charging module includes the first rectification unit, the first charging filter unit and the first pressure stabilizing current limliting
Unit.The power supply of the input terminal access of first rectification unit obtains the first direct current for carrying out rectification processing to power supply；The
The first end of one charging filter unit connects the output end of the first rectification unit, for being filtered to the first direct current；
The second end of input terminal connection the first charging filter unit of first pressure stabilizing current limiting unit, for straight to first after filtering processing
Galvanic electricity carries out the processing of pressure stabilizing current limliting and exports.
Specifically, the second charging module includes the second rectification unit, the second charging filter unit and the second pressure stabilizing current limliting
Unit.The power supply of the input terminal access of second rectification unit, carries out rectification processing for power supply, obtains the second direct current；Second
The first end of charging filter unit connects the output end of the second rectification unit, for being filtered to the second direct current；The
The second end of input terminal connection the second charging filter unit of two pressure stabilizing current limiting units, for the second direct current after filtering processing
Electricity carries out the processing of pressure stabilizing current limliting and exports.
Specifically, the first control module includes the first comparing unit and first switch unit.The input of first comparing unit
It terminates into the first output voltage values, for respectively carrying out the first output voltage values and the first preset threshold, the second preset threshold
Compare, and exports the first cut-off signal when the first output voltage values are greater than the first preset threshold, it is small in the first output voltage values
Signal is connected in output first when the second preset threshold；The controlled end of first switch unit connects the output of the first comparing unit
End is connected signal according to first and is connected for disconnecting the connection of the first charging module and positive battery group according to the first cut-off signal
The connection of first charging module and positive battery group.
Specifically, the second control module includes the second comparing unit and second switch unit.The input of second comparing unit
It terminates into the second output voltage values, for respectively carrying out the second output voltage values and the first preset threshold, the second preset threshold
Compare, and exports the second cut-off signal when the second output voltage values are greater than the first preset threshold, it is small in the second output voltage values
Signal is connected in output second when the second preset threshold；The controlled end of second switch unit connects the output of the second comparing unit
End is connected signal according to second and is connected for disconnecting the connection of the second charging module and negative battery group according to the second cut-off signal
The connection of second charging module and negative battery group.
Multiple isolation module 140 includes the first filter unit, the first isolated location, second in one of the embodiments,
Filter unit and the second isolated location.
First filter unit, the input terminal of the first filter unit is the input terminal of multiple isolation module, for access
Power supply is filtered；First isolated location, the input terminal of the first isolated location connect the output end of the first filter unit, use
It is isolated again in carrying out first to the power supply after filtering processing, and exports the first isolated power supply；Second filter unit, the second filtering are single
The input terminal of member connects the output end of the first isolated location, for being filtered to the first isolated power supply；Second isolation is single
Member, the input terminal of the second isolated location connect the output of the second filter unit, and the second end of the second isolated location is multiple isolation
The output end of module is isolated again for carrying out second to filtered first isolated power supply, and exports the second isolated power supply.
Referring to Fig. 3, the physical circuit figure of power supply system in the corresponding upper embodiment in the position Fig. 3.For ease of description, it only shows
Part related to the embodiment of the present invention, details are as follows:
In embodiments of the present invention, the first filter unit includes capacitor C1, capacitor C2, inductance L1 and inductance L2.Capacitor
The first end of C1 and the first end of inductance L1 connect the first end of the input terminal as the first filter unit, the second end of capacitor C1 altogether
Connect the second end of the input terminal as the first filter unit altogether with the first end of inductance L2, the first end of capacitor C2 and inductance L1's
Second end connects the first end of the output end as the first filter unit altogether, and the second end of capacitor C2 and the second end of inductance L2 connect altogether
The second end of output end as the first filter unit is realized by capacitor C1, capacitor C2, inductance L1 and inductance L2 to access
Power supply filtering processing.
In embodiments of the present invention, the first isolated location is transformer T1, after being realized by transformer T1 to filtering processing
Power supply first be isolated again.
In embodiments of the present invention, the second filter unit includes capacitor C3, capacitor C4, inductance L3 and inductance L4.Capacitor
The first end of C3 and the first end of inductance L3 connect the first end of the input terminal as the first filter unit, the second end of capacitor C3 altogether
Connect the second end of the input terminal as the first filter unit altogether with the first end of inductance L4, the first end of capacitor C4 and inductance L3's
Second end connects the first end of the output end as the first filter unit altogether, and the second end of capacitor C4 and the second end of inductance L4 connect altogether
The second end of output end as the first filter unit is realized by capacitor C3, capacitor C4, inductance L3 and inductance L4 to access
Power supply filtering processing.
In embodiments of the present invention, the second isolated location is transformer T2, after being realized by transformer T2 to filtering processing
The first isolated power supply second be isolated again.
In embodiments of the present invention, the first rectification unit includes rectifier bridge Z1, and the first charging filter unit includes capacitor C5
With capacitor C6, the first pressure stabilizing current limiting unit includes voltage-stablizer W1, resistance R1 and diode D1.The input terminal of rectifier bridge Z1 connects
Multiple isolation module 140, the first output end of rectifier bridge Z1, the first end of capacitor C5, the first end and voltage-stablizer of capacitor C6
The input terminal of W1 connects altogether, the second output terminal of rectifier bridge Z1, the second end of capacitor C5, the second end of capacitor C6 and diode D1
Positive terminal be connected to ground altogether, the first end of the negative pole end of diode D1, the common end of voltage-stablizer W1 and resistance R1 connects altogether, resistance
The second end of R1 is the output end of the first charging module.
In embodiments of the present invention, the second rectification unit includes rectifier bridge Z2, and the second charging filter unit includes capacitor C7
With capacitor C8, the second pressure stabilizing current limiting unit includes voltage-stablizer W2, resistance R2 and diode D2.The input terminal of rectifier bridge Z2 connects
Multiple isolation module 140, the first output end of rectifier bridge Z2, the first end of capacitor C7, the first end and voltage-stablizer of capacitor C8
The input terminal of W2 connects altogether, the second output terminal of rectifier bridge Z2, the second end of capacitor C7, the second end of capacitor C8 and diode D2
Positive terminal be connected to ground altogether, the first end of the negative pole end of diode D2, the common end of voltage-stablizer W2 and resistance R2 connects altogether, resistance
The second end of R2 is the output end of the second charging module.
In embodiments of the present invention, the first comparing unit includes comparator A1, comparator A2 and trigger RS1, and first
Switch unit includes resistance R3, triode Q1, diode D3, relay control coil J1, relay switch K11 and relay
The normally opened dynamic touching of the normal phase input end of switch K12, comparator A1, the normal phase input end of comparator A2 and relay switch K11
Point accesses the output voltage values Vout1 of positive battery group altogether, and the normally opened stationary contact of relay switch K11 connects protective module, after
The normally opened movable contact of electric switch K12 connects the ground terminal of positive battery group, and the normally opened stationary contact of relay switch K12 connects charging module
120.It is pre- that the negative-phase input of comparator A1 and the negative-phase input of comparator A2 are respectively connected to the first preset threshold Va1 and second
If threshold value Va2, the output end of comparator A1 and the output end of comparator A2 are separately connected the input terminal of trigger RS1, trigger
The first end of the output end connection resistance R3 of RS1, the base stage of the second end connecting triode Q1 of resistance R3, the current collection of triode Q1
The first end of pole, the positive terminal of diode D3 and relay control coil J1 connects altogether, the negative pole end and relay of diode D3
The second end of control coil J1 accesses voltage Vs, the emitter ground connection of triode Q1 altogether.When output voltage values Vout1 is greater than the
When one preset threshold Va1, trigger RS1 input signal R=1, trigger RS1 are in reset state, triode Q1 cut-off, relay
Device control coil J1 no power, relay switch K11 and relay switch K12 are in an off state；As output voltage values Vout1
When less than the second preset threshold Va2, trigger RS1 input signal S=1, trigger RS1 are in SM set mode, and triode Q1 is led
Logical, relay control coil J1 is powered, and relay switch K11 and relay switch K12 are attracted.Wherein, relay switch K11
With relay switch K12 other than being controlled by relay control coil J1, can also artificially it manually control.
In embodiments of the present invention, the second comparing unit includes comparator A3, comparator A4 and trigger RS2, and second
Switch unit includes resistance R4, triode Q2, diode D4, relay control coil J2 and relay switch K21 and relay
The normal phase input end of device switch K22, comparator A3, the normal phase input end of comparator A4 and the normally opened of relay switch K21 move
The output voltage values Vout2 of negative battery group is accessed in contact altogether, and the normally opened stationary contact of relay switch K21 connects protective module,
The normally opened movable contact of relay switch K22 connects the ground terminal of negative battery group, and the normally opened stationary contact of relay switch K22 connects charging mould
Block 120.The negative-phase input of comparator A3 and the negative-phase input of comparator A4 are respectively connected to the first preset threshold Va1 and second
The output end of preset threshold Va2, comparator A3 and the output end of comparator A4 are separately connected the input terminal of trigger RS2, triggering
The first end of the output end connection resistance R4 of device RS2, the base stage of the second end connecting triode Q2 of resistance R4, the collection of triode Q2
The first end of electrode, the positive terminal of diode D4 and relay control coil J2 connects altogether, the negative pole end and relay of diode D4
The second end of device control coil J2 accesses voltage Vs, the emitter ground connection of triode Q2 altogether.When output voltage values Vout2 is greater than
When the first preset threshold Va1, trigger RS2 input signal R=1, trigger RS2 are in reset state, and triode Q2 ends, after
Electrical equipment control coil J2 no power, relay switch K21 and relay switch K22 are in an off state；Work as output voltage values
When Vout1 is less than the second preset threshold Va2, trigger RS2 input signal S=1, trigger RS2 are in SM set mode, triode
Q2 conducting, relay control coil J2 are powered, and relay switch K21 and relay switch K22 are attracted.Wherein, relay is opened
K2 is closed other than being controlled by relay control coil J2, can also artificially be manually controlled.
In embodiments of the present invention, protective module 150 includes diode D5 and diode D6, and the positive terminal of diode D5 connects
Meet the output end of the first charging module, the normally opened stationary contact of the negative pole end connection relay switch K1 of diode D5, diode D6
Negative pole end connect the second charging module output end, diode D6 positive terminal connection relay switch K2 normally opened stationary contact
Point.
In embodiments of the present invention, display module 170 includes resistance R5, resistance R6, optocoupler diode D7 and optocoupler two
Pole pipe D8.The first end of resistance R5 and the second end of relay control coil J1 access voltage Vs, the second end of resistance R5 altogether
Connect the negative pole end of optocoupler diode D7, the first end of the positive terminal connection relay control coil J1 of optocoupler diode D7.Electricity
The second end of the first end and relay control coil J2 that hinder R6 accesses voltage Vs altogether, and the second end of resistance R6 connects optocoupler two
The negative pole end of pole pipe D8, the first end of the positive terminal connection relay control coil J2 of optocoupler diode D8.When relay controls
When coil J1 is powered, optocoupler diode D7 is powered, and is in display state；When relay control coil J2 is powered, optocoupler diode
D8 is powered, and is in display state.
Power supply system provided in an embodiment of the present invention can be realized by each device to the multiple isolation of power grid and screen
It covers, interference of the interference source to voicefrequency circuit 100 can be effectively prevented from, guarantee the stability that voicefrequency circuit 100 inputs, and improve
The audio result of broadcast of voicefrequency circuit 100；The intelligent charge to battery module 110 is realized simultaneously, so that battery module 110
It is constantly in ideal full power state, the power supply of voicefrequency circuit 100 can be continuously；And user is made to understand battery module in real time
110 charging situation.
The present invention also provides a kind of electronic equipment, which includes voicefrequency circuit, further includes embodiment institute as above
The power supply system stated.The electronic equipment has the power supply system, can obtain the power supply of stable precision, be effectively prevented from interference,
Guarantee the audio result of broadcast of electronic equipment；And has and play while charging audio and carry out audio broadcasting for a long time
Function provides the Experience Degree of user.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of power supply system of voicefrequency circuit, connect with voicefrequency circuit, which is characterized in that the power supply system includes:
Battery module, the battery module connect the voicefrequency circuit, for providing power supply to the voicefrequency circuit；
Charging module charges for accessing power supply and when connecting the battery module to the battery module；
Control module, the control module are connected between the battery module and the charging module, for detecting
The output voltage values of the battery module disconnect the charging module and the battery module when being greater than the first preset threshold
Connection, the company of the charging module Yu the battery module is connected when the output voltage values are less than the second preset threshold
It connects.
2. power supply system according to claim 1, which is characterized in that the power supply system further include:
Multiple isolation module, the input terminal of the multiple isolation module access power supply, and the output end of the multiple isolation module connects
The input terminal for connecing the charging module, for carrying out multiple isolation to the power supply and exporting to the charging module.
3. power supply system according to claim 2, which is characterized in that the multiple isolation module includes:
First filter unit, the input terminal of first filter unit is the input terminal of the multiple isolation module, for docking
The power supply entered is filtered；
First isolated location, the input terminal of first isolated location connect the output end of first filter unit, for pair
Filtered power supply carries out first is isolated again, and exports the first isolated power supply；
Second filter unit, the input terminal of second filter unit connect the output end of first isolated location, for pair
First isolated power supply is filtered；
Second isolated location, the input terminal of second isolated location connect the output end of second filter unit, and described
The output end of two isolated locations is the output end of the multiple isolation module, for carrying out the to filtered first isolated power supply
Double isolation, and export the second isolated power supply.
4. power supply system according to claim 1, which is characterized in that the power supply system further include:
Protective module, the protective module are connected between the control module and the charging module, in the charging
When module charges to the battery module, the current direction of the charging module is limited.
5. power supply system according to claim 1, which is characterized in that the power supply system further include:
Shroud module, shielding and the control module and the charging mould for the voicefrequency circuit and the battery module
The shielding of block；Wherein, respectively independent between two shieldings, not connected, the internal circuit between two shieldings is plugged by plug to be connected
It connects.
6. power supply system according to claim 1, which is characterized in that the power supply system further include:
Display module, the display module connects the control module, for showing the charged state of the battery module.
7. power supply system according to claim 1, which is characterized in that the battery module includes positive battery group and negative electricity
Pond group, the charging module include the first charging module, the second charging module；
The control module includes:
First control module, first control module are connected between the positive battery group and first charging module, are used
In the first output voltage values for detecting the positive battery group be greater than the first preset threshold when disconnect first charging module
With the connection of the positive battery group, the first charging mould is connected when first output voltage values are less than the second preset threshold
The connection of block and the positive battery group；
Second control module, second control module are connected between the negative battery group and second charging module, are used
In the second output voltage values for detecting the negative battery group be greater than the first preset threshold when disconnect second charging module
With the connection of the negative battery group, the second charging mould is connected when second output voltage values are less than the second preset threshold
The connection of block and the negative battery group.
8. power supply system according to claim 7, which is characterized in that first charging module includes:
The power supply of first rectification unit, the input terminal access of first rectification unit is obtained for rectifying to the power supply
Obtain the first direct current；
The first end of first charging filter unit, the first charging filter unit connects the output of first rectification unit
End, for being filtered to first direct current；
First pressure stabilizing current limiting unit, the input terminal of the first pressure stabilizing current limiting unit connect the of the first charging filter unit
Two ends, for carrying out pressure stabilizing current limliting to filtered first direct current and exporting；
Second charging module includes:
Second rectification unit, the power supply of the input terminal access of second rectification unit, is rectified for the power supply, is obtained
Second direct current；
The first end of second charging filter unit, the second charging filter unit connects the output of second rectification unit
End, for being filtered to second direct current；
Second pressure stabilizing current limiting unit, the input terminal of the second pressure stabilizing current limiting unit connect the of the second charging filter unit
Two ends, for carrying out pressure stabilizing current limliting to the second direct current after filtering processing and exporting.
9. power supply system according to claim 7, which is characterized in that first control module includes:
The input terminal of first comparing unit, first comparing unit accesses first output voltage values, for respectively by institute
It states the first output voltage values to be compared with first preset threshold, second preset threshold, and in first output
Voltage value exports the first cut-off signal when being greater than first preset threshold, is less than described second in first output voltage values
Signal is connected in output first when preset threshold；
First switch unit, the controlled end of the first switch unit connect the output end of first comparing unit, are used for root
The connection that first charging module Yu the positive battery group are disconnected according to first cut-off signal connects according to the first connection signal
Lead to the connection of first charging module Yu the positive battery group；
Second control module includes:
The input terminal of second comparing unit, second comparing unit accesses second output voltage values, for respectively by institute
It states the second output voltage values to be compared with first preset threshold, second preset threshold, and in second output
Voltage value exports the second cut-off signal when being greater than first preset threshold, is less than described second in second output voltage values
Signal is connected in output second when preset threshold；
Second switch unit, the controlled end of the second switch unit connect the output end of second comparing unit, are used for root
The connection that second charging module Yu the negative battery group are disconnected according to second cut-off signal connects according to the second connection signal
Lead to the connection of second charging module Yu the negative battery group.
10. a kind of electronic equipment, which is characterized in that the electronic equipment includes voicefrequency circuit, further includes that claim 1-9 such as appoints
Power supply system described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811157097.1A CN109274148A (en) | 2018-09-30 | 2018-09-30 | The power supply system and electronic equipment of voicefrequency circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811157097.1A CN109274148A (en) | 2018-09-30 | 2018-09-30 | The power supply system and electronic equipment of voicefrequency circuit |
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| CN109274148A true CN109274148A (en) | 2019-01-25 |
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| CN201811157097.1A Pending CN109274148A (en) | 2018-09-30 | 2018-09-30 | The power supply system and electronic equipment of voicefrequency circuit |
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| CN201967099U (en) * | 2011-01-21 | 2011-09-07 | 浙江恒科实业有限公司 | Hi-Fi miniature sound box |
| CN203708455U (en) * | 2013-01-11 | 2014-07-09 | 任界峰 | Full-wireless split-type stereo active sound box |
| CN203980118U (en) * | 2014-07-10 | 2014-12-03 | 佛山职业技术学院 | A kind of photovoltaic fire-fighting emergent identification lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201267016Y (en) * | 2008-10-10 | 2009-07-01 | 吉林市航盛宏宇电子有限公司 | Vehicle-mounted Bluetooth acoustic enclosure |
| CN201967099U (en) * | 2011-01-21 | 2011-09-07 | 浙江恒科实业有限公司 | Hi-Fi miniature sound box |
| CN203708455U (en) * | 2013-01-11 | 2014-07-09 | 任界峰 | Full-wireless split-type stereo active sound box |
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