CN105116953B

CN105116953B - A kind of source of sound device

Info

Publication number: CN105116953B
Application number: CN201510514108.7A
Authority: CN
Inventors: 杜宗辉; 钟发志
Original assignee: Ningbo Soundking Electronic Co Ltd
Current assignee: Audio Limited by Share Ltd
Priority date: 2015-08-20
Filing date: 2015-08-20
Publication date: 2016-08-24
Anticipated expiration: 2035-08-20
Also published as: CN105116953A

Abstract

The invention discloses a kind of source of sound device, including source of sound device main body circuit, source of sound device also includes power management chip control circuit, power supply input circuit, load supplying circuit, battery charger, voltage output feedback circuit, electric current regulating allocation circuit, lithium battery and battery electric quantity indicating circuit；Power management chip control circuit is connected with power supply input circuit, stream regulating allocation circuit, the positive pole of lithium battery, voltage output feedback circuit, load supplying circuit, battery charger and battery electric quantity indicating circuit respectively；The positive pole of battery charger and lithium battery connects, and load supplying circuit and source of sound device main body circuit connect, and power supply input circuit accesses external power source；Advantage is outdoor or in the case of not having external power source, lithium battery can provide running voltage, source of sound device still can normally work.

Description

A kind of source of sound device

Technical field

The present invention relates to a kind of electronic drum electric power management circuit, especially relate to a kind of source of sound device.

Background technology

Electronic drum generally includes drum, drum, source of sound device, and user beats drum and produces triggering signal, and source of sound device obtains This triggering signal and this triggering signal is identified process after obtain need audio signal output.Existing source of sound device needs External power source to be accessed could normally work.At present, existing source of sound device all uses external power source (civil power) as power supply Power supply, when outdoor or in the case of not having external power source, source of sound device will be unable to normally work, and thus will cause electronics Drum cannot use in the case of not having external power source.

Summary of the invention

The technical problem to be solved is to provide a kind of outdoor or in the case of not having external power source, the most permissible The source of sound device of normal work.

The present invention solves the technical scheme that above-mentioned technical problem used: a kind of source of sound device, including source of sound device main body circuit, Described source of sound device also includes that power management chip control circuit, power supply input circuit, load supplying circuit, battery charge Circuit, voltage output feedback circuit, electric current regulating allocation circuit, lithium battery and battery electric quantity indicating circuit；Described electricity Source control chip control circuit respectively with described power supply input circuit, described electric current regulating allocation circuit, described lithium The positive pole of battery, described voltage output feedback circuit, described load supplying circuit, described battery charger and Described battery electric quantity indicating circuit connects；The positive pole of described battery charger and described lithium battery connects, described Load supplying circuit and described source of sound device main body circuit connect, described power supply input circuit accesses external power source；

When described power supply input circuit accesses external power source, described power management chip control circuit is to outside described The voltage that portion's power supply provides is allocated management, the voltage that described external power source provides is distributed into two-way, a road voltage Running voltage, another road is provided by described load supplying circuit for described source of sound device main body circuit as supply voltage Voltage is described lithium cell charging as charging voltage by described battery charger, in power supply and charging process In, described power management chip control circuit is according to described voltage output feedback circuit and described electric current regulating allocation The signal of circuit adjusts the size of supply voltage and charging voltage in real time, to ensure normal power supply and charging；When outdoor or When person does not has external power source, the voltage that the lithium battery after charging provides is passed through institute by described power management chip control circuit The load supplying circuit stated provides running voltage, in power supply process, described power supply to described source of sound device main body circuit Managing chip control circuit is real according to the signal of described voltage output feedback circuit and described electric current regulating allocation circuit Time adjust described in load supplying circuit provide running voltage.

Described power supply input circuit has first input end, the second input, the first outfan and the second outfan；Institute The load supplying circuit stated has first input end, the second input and outfan；Described battery electric quantity indicating circuit tool There are first input end, the second input, the 3rd input, four-input terminal and the 5th input；Described electric current regulation Configuration circuit has first input end, the second input, the 3rd input, four-input terminal and the 5th input；Described The first input end of power supply input circuit be used for accessing external power source；

Described power management chip control circuit includes the power management chip that model is ETA6082, described power supply 1st foot, the 12nd foot, the 19th foot, the 32nd foot and the 33rd foot ground connection of managing chip；Described power management chip The 3rd foot and described lithium battery positive pole connect, the 29th foot of described power management chip, the 30th foot and the 31st Foot is all connected with the first outfan of described power supply input circuit, the 27th foot of described power management chip and described Power supply input circuit second outfan connect, the 15th foot of described power management chip and described power supply input Second input of circuit connects；4th foot of described power management chip and the 5th foot connect and its connect end respectively with The described input of voltage output feedback circuit and the first input end of described load supplying circuit connect, described electricity Second input of the 8th foot, the 9th foot and the described load supplying circuit of source control chip connects；Described power supply pipe 14th foot of reason chip and the outfan of described voltage output feedback circuit connect；The 6th of described power management chip The input of foot, the 7th foot and described battery charger connects；26th foot of described power management chip and institute The first input end of the battery electric quantity indicating circuit stated connects, the 22nd foot of described power management chip and described electricity Second input of pond battery capacity indication circuit connects, the 23rd foot of described power management chip and described battery electric quantity 3rd input of indicating circuit connects, the 24th foot of described power management chip and described battery electric quantity instruction electricity The four-input terminal on road connects, the of the 25th foot of described power management chip and described battery electric quantity indicating circuit Five inputs connect；11st foot of described power management chip and the first input of described electric current regulating allocation circuit End connects, and the 13rd foot of described power management chip and the second input of described electric current regulating allocation circuit connect, 16th foot of described power management chip and the 3rd input of described electric current regulating allocation circuit connect, described 17th foot of power management chip and the four-input terminal of described electric current regulating allocation circuit connect, described power supply pipe 20th foot of reason chip and the 5th input of described electric current regulating allocation circuit connect.

Described power supply input circuit include the first resistance, the second resistance, the 3rd resistance, the first electric capacity, the second electric capacity, 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the first inductance, the second inductance, the first PMOS and D/C power socket； The second described inductance is common mode inductance；One end of the first described resistance, one end of the first described electric capacity, described One end of one end of second electric capacity and the first described inductance connects and it connects that end is described power supply input circuit the One outfan, the other end of the first described resistance, the other end of the first described electric capacity and the second described electric capacity another The equal ground connection in one end, the other end of the first described inductance and the drain electrode of the first described PMOS connect, described first The source electrode of PMOS, one end of the second described resistance, one end of the 3rd described resistance, the 4th described electric capacity 2nd foot of one end, one end of the 5th described electric capacity and the second described inductance connects, the first described PMOS The other end of grid and the second described resistance connects and it connects the second input that end is described power supply input circuit； The other end of the 3rd described resistance and one end of the 3rd described electric capacity connect and its connection end is described power supply input Second outfan of circuit, the other end of the 3rd described electric capacity, the other end and the described the 5th of the 4th described electric capacity The equal ground connection of the other end of electric capacity；1st foot of the second described inductance and the 1st foot of described D/C power socket connect, 3rd foot ground connection of the second described inductance, the 4th foot of the second described inductance and the 2nd of described D/C power socket the Foot connects, the described first input end that D/C power socket is described power supply input circuit.

Described load supplying circuit include the 4th resistance, the 5th resistance, the 6th resistance, the 6th electric capacity, the 7th electric capacity, 8th electric capacity, the 9th electric capacity, the 3rd inductance, the 4th inductance, audion and the second PMOS；The 6th described electric capacity One end, one end of the 7th described electric capacity and the 4th described inductance one end connect and its connect end be described load The first input end of power supply circuits, the other end of the 6th described electric capacity, the other end of the 7th described electric capacity and described One end of 3rd inductance connects and it connects the second input that end is described load supplying circuit, the 4th described inductance The other end and one end of the 8th described electric capacity connect, described one end of the 4th resistance, the transmitting of described audion The source electrode of pole and the second described PMOS connects, the other end of the 4th described inductance and the one of the 8th described electric capacity End connect end and described one end of the 4th resistance, the emitter stage of described audion and the second described PMOS The connection end of source electrode connects, and the other end of the 8th described electric capacity and the equal ground connection of the other end of the 3rd described inductance are described The other end of the 4th resistance, one end of the 6th described resistance and described audion base stage connect, three described poles The grid of the colelctor electrode of pipe, one end of the 5th described resistance and the second described PMOS connects, the 5th described electricity The other end, the other end of the 6th described resistance and the equal ground connection in one end of the 9th described electric capacity of resistance, the 9th described electricity The other end held and the drain electrode of the second described PMOS connect and its connection end is the defeated of described load supplying circuit Go out end, the outfan of described load supplying circuit and described source of sound device main body circuit to connect.

Described load supplying circuit also includes double-point double-throw switch and USB interface；The other end of the 4th described inductance With one end of the 8th described electric capacity connect end by one end of described double-point double-throw switch and the 4th described resistance, The connection end of the emitter stage of described audion and the source electrode of the second described PMOS connects, the 4th described inductance Connection end, the 3rd foot of described double-point double-throw switch and the described double-pole of one end of the other end and the 8th described electric capacity 6th foot of commutator connects, the 2nd foot of described double-point double-throw switch, the 5th foot of described double-point double-throw switch Connection with the source electrode of described one end of the 4th resistance, the emitter stage of described audion and the second described PMOS End connects, the 1st foot of described double-point double-throw switch, the 4th foot of described double-point double-throw switch and described USB 1st foot of interface connects, and the 4th foot, the 5th foot, the 6th foot and the described D/C power of described USB interface is inserted 2nd foot of seat connects.

Described voltage output feedback circuit includes the 7th resistance, the 8th resistance and the tenth electric capacity；The 7th described resistance One end of one end and the tenth described electric capacity connects and it connects the input that end is described voltage output feedback circuit, institute The other end of the other end of the 7th resistance stated, one end of the 8th described resistance and the tenth described electric capacity connects and it connects Connect the end outfan for described voltage output feedback circuit, the other end ground connection of the 8th described resistance；Described battery Charging circuit includes the 11st electric capacity, the 12nd electric capacity and the 5th inductance, one end of the 11st described electric capacity and described One end of 5th inductance connects and it connects the outfan that end is described battery charger, the 5th described inductance another One end of one end and the 12nd described electric capacity connects and it connects the input that end is described battery charger, described The other end of the 11st electric capacity and the equal ground connection of the other end of the 12nd described electric capacity, described battery charger defeated The positive pole going out end and described lithium battery connects.

Described battery electric quantity indicating circuit include the 9th resistance, the tenth resistance, the 11st resistance, the 12nd resistance, 13 resistance, the 14th resistance, the 15th resistance, the 16th resistance, the 17th resistance, the 13rd electric capacity, first Optical diode, the second light emitting diode, the 3rd light emitting diode and the 4th light emitting diode；The 13rd described electric capacity One end of one end and the 9th described resistance connects and it connects the first input that end is described battery electric quantity indicating circuit End, one end of the other end of the 9th described resistance, one end of the tenth described resistance and the 13rd described resistance connects And its to connect end be the second input of described battery electric quantity indicating circuit, the other end of the tenth described resistance, described One end of the 11st resistance and one end of the 14th described resistance connects and it connects the battery electric quantity that end is described and refers to Show the 3rd input of circuit, the other end of the 11st described resistance, one end of the 12nd described resistance and described One end of 15th resistance connects and it connects the four-input terminal that end is described battery electric quantity indicating circuit, and described the One end of the other end of 12 resistance, one end of the 16th described resistance and the 17th described resistance connects and it connects End is the 5th input of described battery electric quantity indicating circuit；The other end and described first of the 13rd described resistance The positive pole of light emitting diode connects, and the other end of the 14th described resistance and the positive pole of the second described light emitting diode are even Connecing, the other end of the 15th described resistance and the positive pole of the 3rd described light emitting diode connect, the 16th described electricity The other end of resistance and the positive pole of the 4th described light emitting diode connect, the other end of the 13rd described electric capacity, described The negative pole of the first light emitting diode, the negative pole of the second described light emitting diode, the negative pole of the 3rd described light emitting diode, The negative pole of the 4th described light emitting diode and the equal ground connection of the other end of the 17th described resistance.

Described electric current regulating allocation circuit include the 14th electric capacity, the 18th resistance, the 19th resistance, the 20th resistance, 21st resistance and the 22nd resistance；One end of the 18th described resistance is described electric current regulating allocation circuit First input end, one end of the 14th described electric capacity and one end of the 19th described resistance connect and its connection end is institute Second input of the electric current regulating allocation circuit stated, one end of the 20th described resistance is described electric current regulating allocation 3rd input of circuit, one end of the 21st described resistance is the 4th input of described electric current regulating allocation circuit End, one end of the 22nd described resistance is the 5th input of described electric current regulating allocation circuit, described the tenth The other end of eight resistance, the other end of the 19th described resistance, the other end of the 20th described resistance, described The other end of the other end of 21 resistance, the other end of the 22nd described resistance and the 14th described electric capacity all connects Ground.

Described source of sound device also includes battery thermal-shutdown circuit；Described battery thermal-shutdown circuit has the first outfan With the second outfan, the first outfan of described battery thermal-shutdown circuit and the 28th of described power management chip the Foot connects, and the second outfan of described battery thermal-shutdown circuit and the 21st foot of described power management chip connect； Described battery thermal-shutdown circuit includes the 15th electric capacity, the 23rd resistance, the 24th resistance and critesistor； One end of the 23rd described resistance and one end of the 15th described electric capacity connect and its connection end is described battery First outfan of thermal-shutdown circuit, the other end ground connection of the 15th described electric capacity, the 23rd described resistance One end of the other end, one end of the 24th described resistance and described critesistor connects and its connection end is described Second outfan of battery thermal-shutdown circuit, the other end of the 24th described resistance and described critesistor another The equal ground connection in one end.

Described source of sound device also includes that battery overcurrent-overvoltage protecting circuit, described battery overcurrent-overvoltage protecting circuit include 25 resistance, the 26th resistance, the 27th resistance, the 16th electric capacity, model are the battery protection core of DW01 Sheet, model are first chip of 8205A and the second chip that model is 8205A；The one of the 25th described resistance The positive pole of end and described lithium battery connects, the other end of the 25th described resistance, the one of the 16th described electric capacity 5th foot of end and described battery protection chip connects, the described other end of the 16th electric capacity, described battery protection 6th foot of chip, the 2nd foot of the first described chip, the 3rd foot of the first described chip, the second described chip The 2nd foot, the 3rd foot of the second described chip, one end of the 26th described resistance and described lithium battery negative Pole connects, the 3rd foot of described battery protection chip, the 5th foot of the first described chip and the second described chip 5th foot connects, the 1st foot of described battery protection chip, the 4th foot of the first described chip and the second described core 4th foot of sheet connects, the 1st foot of the first described chip, the 8th foot of the first described chip, the second described core 8th foot of the 1st foot of sheet and the second described chip connects, the 2nd foot of described battery protection chip and described the One end of 27 resistance connects, the other end of the 26th described resistance, the other end of the 27th described resistance, 6th foot of the first described chip, the 7th foot of the first described chip, the 6th foot of the second described chip and described The 7th equal ground connection of foot of the second chip.

Compared with prior art, it is an advantage of the current invention that by arranging power management chip control circuit, power supply input electricity Road, load supplying circuit, battery charger, voltage output feedback circuit, electric current regulating allocation circuit, lithium battery and Battery electric quantity indicating circuit, when power supply input circuit accesses external power source, power management chip control circuit is to external electrical The voltage that source provides is allocated management, and the voltage that external power source provides is distributed into two-way, and a road voltage is as power supply electricity Pressing and provide running voltage by load supplying circuit for source of sound device main body circuit, another road voltage passes through electricity as charging voltage Pond charging circuit is lithium cell charging, and in power supply and charging process, power management chip control circuit exports according to voltage The signal of feedback circuit and electric current regulating allocation circuit adjusts the size of supply voltage and charging voltage in real time, normal to ensure Power supply and charging；When outdoor or when not having external power source, power management chip control circuit is by the lithium battery after charging The voltage provided provides running voltage, in power supply process, power supply pipe by load supplying circuit to source of sound device main body circuit Reason chip control circuit adjusts load supplying in real time according to the signal of voltage output feedback circuit and electric current regulating allocation circuit The running voltage that circuit provides, thereby guarantees that source of sound device, still can be normal outdoor or in the case of not having external power source Work.

Accompanying drawing explanation

Fig. 1 is the theory diagram of the present invention；

Fig. 2 is the circuit diagram of the power management chip control circuit of the present invention；

Fig. 3 is the circuit diagram of the power supply input circuit of the present invention；

Fig. 4 is the circuit diagram of the load supplying circuit of the embodiment of the present invention one；

Fig. 5 is the circuit diagram of the load supplying circuit of the embodiment of the present invention two；

Fig. 6 is the circuit diagram of the voltage output feedback circuit of the present invention；

Fig. 7 is the circuit diagram of the battery charger of the present invention；

Fig. 8 is the circuit diagram of the battery electric quantity indicating circuit of the present invention；

Fig. 9 is the circuit diagram of the electric current regulating allocation circuit of the present invention；

Figure 10 is the circuit diagram of the battery thermal-shutdown circuit of the present invention；

Figure 11 is the circuit diagram of the battery overcurrent-overvoltage protecting circuit of the present invention.

Detailed description of the invention

Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.

Embodiment one: as it is shown in figure 1, a kind of source of sound device, including source of sound device main body circuit, source of sound device also includes power supply pipe Reason chip control circuit, power supply input circuit, load supplying circuit, battery charger, voltage output feedback circuit, Electric current regulating allocation circuit, lithium battery and battery electric quantity indicating circuit；Power management chip control circuit is defeated with power supply respectively Enter circuit, electric current regulating allocation circuit, the positive pole of lithium battery, voltage output feedback circuit, load supplying circuit, battery Charging circuit and battery electric quantity indicating circuit connect；The positive pole of battery charger and lithium battery connects, load supplying circuit Connecting with source of sound device main body circuit, power supply input circuit accesses external power source；When power supply input circuit accesses external power source, Power management chip control circuit is allocated management to the voltage that external power source provides, and is divided by the voltage that external power source provides Being made into two-way, a road voltage provides running voltage by load supplying circuit for source of sound device main body circuit as supply voltage, Another road voltage is lithium cell charging as charging voltage by battery charger, in power supply and charging process, and power supply Managing chip control circuit adjusts power supply electricity in real time according to the signal of voltage output feedback circuit and electric current regulating allocation circuit Pressure and the size of charging voltage, to ensure normal power supply and charging；When outdoor or when there is no external power source, power supply pipe The voltage that lithium battery after charging provides is carried to source of sound device main body circuit by reason chip control circuit by load supplying circuit For running voltage, in power supply process, power management chip control circuit is according to voltage output feedback circuit and electric current regulation The signal of configuration circuit adjusts the running voltage that load supplying circuit provides in real time.

As in figure 2 it is shown, in the present embodiment, power supply input circuit has first input end, the second input, the first output End and the second outfan；Load supplying circuit has first input end, the second input and outfan；Battery electric quantity indicates Circuit has first input end, the second input, the 3rd input, four-input terminal and the 5th input；Electric current regulates Configuration circuit has first input end, the second input, the 3rd input, four-input terminal and the 5th input；Power supply The first input end of input circuit is used for accessing external power source；Power management chip control circuit includes that model is ETA6082 Power management chip U1, the 1st foot of power management chip U1, the 12nd foot, the 19th foot, the 32nd foot and the 33rd Foot ground connection；The positive pole of the 3rd foot of power management chip U1 and lithium battery connects, the 29th foot of power management chip U1, 30th foot and the 31st foot are all connected with the first outfan of power supply input circuit, the 27th foot of power management chip U1 and Second outfan of power supply input circuit connects, the 15th foot of power management chip U1 and the second of power supply input circuit defeated Enter end to connect；4th foot of power management chip U1 and the 5th foot connect and it connects end and feeds back electricity with voltage output respectively The first input end of the input on road and load supplying circuit connects, the 8th foot of power management chip U1, the 9th foot and Second input of load supplying circuit connects；14th foot of power management chip U1 and voltage export the defeated of feedback circuit Go out end to connect；The input of the 6th foot, the 7th foot and the battery charger of power management chip U1 connects；Power supply pipe 26th foot of reason chip U1 and the first input end of battery electric quantity indicating circuit connect, the 22nd of power management chip U1 Second input of foot and battery electric quantity indicating circuit connects, the 23rd foot of power management chip U1 and battery electric quantity instruction 3rd input of circuit connects, the 24th foot of power management chip U1 and the four-input terminal of battery electric quantity indicating circuit Connecting, the 25th foot of power management chip U1 and the 5th input of battery electric quantity indicating circuit connect；Power management core 11st foot of sheet U1 and the first input end of electric current regulating allocation circuit connect, the 13rd foot of power management chip U1 Connect with the second input of electric current regulating allocation circuit, the 16th foot of power management chip U1 and electric current regulating allocation electricity 3rd input on road connects, and the 17th foot of power management chip U1 and the four-input terminal of electric current regulating allocation circuit are even Connecing, the 20th foot of power management chip U1 and the 5th input of electric current regulating allocation circuit connect.

As it is shown on figure 3, in the present embodiment, power supply input circuit includes the first resistance R1, the second resistance R2, the 3rd electricity Resistance R3, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th electric capacity C5, first Inductance L1, the second inductance L2, the first PMOS M1 and D/C power socket J1；Second inductance L2 is common mode electricity Sense；One end of first resistance R1, one end of the first electric capacity C1, one end of the second electric capacity C2 and the first inductance L1's One end connects and it connects the first outfan that end is power supply input circuit, the other end of the first resistance R1, the first electric capacity The other end of C1 and the equal ground connection of the other end of the second electric capacity C2, the other end of the first inductance L1 and the first PMOS The drain electrode of M1 connects, the source electrode of the first PMOS M1, one end of the second resistance R2, one end of the 3rd resistance R3, 2nd foot of one end of the 4th electric capacity C4, one end of the 5th electric capacity C5 and the second inductance L2 connects, the first PMOS The grid of M1 and the other end of the second resistance R2 connect and it connects the second input that end is power supply input circuit；The The other end of three resistance R3 and one end of the 3rd electric capacity C3 connect and it connects the second output that end is power supply input circuit End, the other end of the 3rd electric capacity C3, the other end of the 4th electric capacity C4 and the equal ground connection of the other end of the 5th electric capacity C5；The 1st foot of two inductance L2 and the 1st foot of D/C power socket J1 connect, the 3rd foot ground connection of the second inductance L2, the 4th foot of two inductance L2 and the 3rd foot of D/C power socket J1 connect, and D/C power socket J1 is power supply input circuit First input end.

As shown in Figure 4, in the present embodiment, load supplying circuit includes the 4th resistance R4, the 5th resistance R5, the 6th electricity Resistance R6, the 6th electric capacity C6, the 7th electric capacity C7, the 8th electric capacity C8, the 9th electric capacity C9, the 3rd inductance L3, the 4th Inductance L4, audion Q1 and the second PMOS M2；One end of 6th electric capacity C6, one end of the 7th electric capacity C7 and One end of 4th inductance L4 connects and it connects the first input end that end is load supplying circuit, another of the 6th electric capacity C6 One end of end, the other end of the 7th electric capacity C7 and the 3rd inductance L3 connects and its connection end is the second of load supplying circuit Input, the other end of the 4th inductance L4 and one end of the 8th electric capacity C8 connect, one end of the 4th resistance R4, three poles The emitter stage of pipe Q1 and the source electrode of the second PMOS M2 connect, the other end of the 4th inductance L4 and the 8th electric capacity C8 One end connect end and one end of the 4th resistance R4, the emitter stage of audion Q1 and the source of the second PMOS M2 The connection end of pole connects, the other end of the 8th electric capacity C8 and the equal ground connection of the other end of the 3rd inductance L3, the 4th resistance R4 The other end, one end of the 6th resistance R6 and audion Q1 base stage connect, the colelctor electrode of audion Q1, the 5th electricity The grid of resistance one end of R5 and the second PMOS M2 connects, the other end of the 5th resistance R5, the 6th resistance R6 The equal ground connection in one end of the other end and the 9th electric capacity C9, the other end of the 9th electric capacity C9 and the leakage of the second PMOS M2 Pole connects and it connects the outfan that end is load supplying circuit, the outfan of load supplying circuit and source of sound device main body circuit Connect.

As shown in Figure 6, in the present embodiment, voltage output feedback circuit includes the 7th resistance R7, the 8th resistance R8 and the Ten electric capacity C10；One end of 7th resistance R7 and one end of the tenth electric capacity C10 connect and its connection end is that voltage output is anti- The input of current feed circuit, another of the other end of the 7th resistance R7, one end of the 8th resistance R8 and the tenth electric capacity C10 End connects and it connects the outfan that end is voltage output feedback circuit, the other end ground connection of the 8th resistance R8；Such as Fig. 7 Shown in, battery charger includes the 11st electric capacity C11, the 12nd electric capacity C12 and the 5th inductance L5, the 11st electricity One end of one end and the 5th inductance L5 of holding C11 connects and its connection end is the outfan of battery charger, the 5th electricity The other end of sense L5 and one end connection of the 12nd electric capacity C12 and its connection end are the input of battery charger, the The other end of 11 electric capacity C11 and the equal ground connection of the other end of the 12nd electric capacity C12, the outfan of battery charger and The positive pole of lithium battery connects.

As shown in Figure 8, in the present embodiment, battery electric quantity indicating circuit include the 9th resistance R9, the tenth resistance R10, 11st resistance R11, the 12nd resistance R12, the 13rd resistance R13, the 14th resistance R14, the 15th resistance R15, 16th resistance R16, the 17th resistance R17, the 13rd electric capacity C13, the first light emitting diode D1, the second luminescence two Pole pipe D2, the 3rd light emitting diode D3 and the 4th light emitting diode D4；One end of 13rd electric capacity C13 and the 9th electricity One end of resistance R9 connect and its to connect end be the first input end of battery electric quantity indicating circuit, another of the 9th resistance R9 One end of end, one end of the tenth resistance R10 and the 13rd resistance R13 connects and its connection end is battery electric quantity instruction electricity Second input on road, the other end of the tenth resistance R10, one end of the 11st resistance R11 and the 14th resistance R14 One end connect and its to connect end be the 3rd input of battery electric quantity indicating circuit, the other end of the 11st resistance R11, One end of 12nd resistance R12 and one end of the 15th resistance R15 connect and its connection end is battery electric quantity indicating circuit Four-input terminal, the other end of the 12nd resistance R12, one end of the 16th resistance R16 and the 17th resistance R17 One end connect and its to connect end be the 5th input of battery electric quantity indicating circuit；The other end of the 13rd resistance R13 and The positive pole of the first light emitting diode D1 connects, and the other end of the 14th resistance R14 and the second light emitting diode D2 are just Pole connects, and the other end of the 15th resistance R15 and the positive pole of the 3rd light emitting diode D3 connect, the 16th resistance R16 The other end and the 4th light emitting diode D4 positive pole connect, the other end of the 13rd electric capacity C13, the first light-emitting diodes The negative pole of pipe D1, the negative pole of the second light emitting diode D2, the negative pole of the 3rd light emitting diode D3, the 4th light-emitting diodes The negative pole of pipe D4 and the equal ground connection of the other end of the 17th resistance R17.

As it is shown in figure 9, in the present embodiment, electric current regulating allocation circuit includes the 14th electric capacity C14, the 18th resistance R18, the 19th resistance R19, the 20th resistance R20, the 21st resistance R21 and the 22nd resistance R22；The The first input end that one end is electric current regulating allocation circuit of 18 resistance R18, one end of the 14th electric capacity C14 and One end of 19 resistance R19 connects and it connects the second input that end is electric current regulating allocation circuit, the 20th resistance One end of R20 is the 3rd input of electric current regulating allocation circuit, and one end of the 21st resistance R21 is that electric current regulation is joined The four-input terminal of circuits, one end of the 22nd resistance R22 is the 5th input of electric current regulating allocation circuit, the The other end of 18 resistance R18, the other end of the 19th resistance R19, the other end of the 20th resistance R20, second The other end of the other end of 11 resistance R21, the other end of the 22nd resistance R22 and the 14th electric capacity C14 all connects Ground.

As shown in Figure 10, in the present embodiment, source of sound device also includes battery thermal-shutdown circuit；Battery thermal-shutdown circuit There is the first outfan and the second outfan, the first outfan of battery thermal-shutdown circuit and power management chip U1's 28th foot connects, and the second outfan of battery thermal-shutdown circuit and the 21st foot of power management chip U1 connect；Electricity Pond thermal-shutdown circuit includes the 15th electric capacity C15, the 23rd resistance R23, the 24th resistance R24 and temperature-sensitive electricity Resistance RT1；One end of 23rd resistance R23 and one end of the 15th electric capacity C15 connect and its connection end is battery mistake First outfan of temperature protection circuit, the other end ground connection of the 15th electric capacity C15, another of the 23rd resistance R23 One end of end, one end of the 24th resistance R24 and critesistor RT1 connects and its connection end is battery overheat protector Second outfan of circuit, the other end of the 24th resistance R24 and the equal ground connection of the other end of critesistor RT1.

As shown in figure 11, in the present embodiment, source of sound device also includes battery overcurrent-overvoltage protecting circuit, battery overcurrent-overvoltage Protection circuit includes the 25th resistance R25, the 26th resistance R26, the 27th resistance R27, the 16th electric capacity C16, model are the battery protection chip U2 of DW01, model is the first chip U3 of 8205A and model is 8205A The second chip U4；One end of 25th resistance R25 and the positive pole of lithium battery connect, the 25th resistance R25's 5th foot of the other end, one end of the 16th electric capacity C16 and battery protection chip U2 connects, the 16th electric capacity C16's The other end, the 6th foot of battery protection chip U2, the 2nd foot of the first chip U3, the 3rd foot of the first chip U3, 2nd foot of the second chip U4, the 3rd foot, one end of the 26th resistance R26 and the lithium battery of the second chip U4 Negative pole connects, the 3rd foot of battery protection chip U2, the 5th foot of the first chip U3 and the 5th foot of the second chip U4 Connecting, the 4th foot of the 1st foot of battery protection chip U2, the 4th foot of the first chip U3 and the second chip U4 connects, 1st foot of the first chip U3, the 8th foot of the first chip U3, the 1st foot of the second chip U4 and the second chip U4 The 8th foot connect, one end of the 2nd foot of battery protection chip U2 and the 27th resistance R27 connects, the 26th The other end of resistance R26, the other end of the 27th resistance R27, the 6th foot of the first chip U3, the first chip 7th foot of U3, the 6th foot of the second chip U4 and the 7th equal ground connection of foot of the second chip U4.

Embodiment two: as it is shown in figure 1, a kind of source of sound device, including source of sound device main body circuit, source of sound device also includes power supply pipe Reason chip control circuit, power supply input circuit, load supplying circuit, battery charger, voltage output feedback circuit, Electric current regulating allocation circuit, lithium battery and battery electric quantity indicating circuit；Power management chip control circuit is defeated with power supply respectively Enter circuit, electric current regulating allocation circuit, the positive pole of lithium battery, voltage output feedback circuit, load supplying circuit, battery Charging circuit and battery electric quantity indicating circuit connect；The positive pole of battery charger and lithium battery connects, load supplying circuit Connecting with source of sound device main body circuit, power supply input circuit accesses external power source；When power supply input circuit accesses external power source, Power management chip control circuit is allocated management to the voltage that external power source provides, and is divided by the voltage that external power source provides Being made into two-way, a road voltage provides running voltage by load supplying circuit for source of sound device main body circuit as supply voltage, Another road voltage is lithium cell charging as charging voltage by battery charger, in power supply and charging process, and power supply Managing chip control circuit adjusts power supply electricity in real time according to the signal of voltage output feedback circuit and electric current regulating allocation circuit Pressure and the size of charging voltage, to ensure normal power supply and charging；When outdoor or when there is no external power source, power supply pipe The voltage that lithium battery after charging provides is carried to source of sound device main body circuit by reason chip control circuit by load supplying circuit For running voltage, in power supply process, power management chip control circuit is according to voltage output feedback circuit and electric current regulation The signal of configuration circuit adjusts the running voltage that load supplying circuit provides in real time.

As it is shown in figure 5, in the present embodiment, load supplying circuit also includes double-point double-throw switch SW1 and USB interface J2； The connection end of the other end of the 4th inductance L4 and one end of the 8th electric capacity C8 is by double-point double-throw switch SW1 and the 4th electricity The connection end of the source electrode of resistance one end of R4, the emitter stage of audion Q1 and the second PMOS M2 connects, the 4th electricity Connection end, the 3rd foot of double-point double-throw switch SW1 and the double-pole of the other end of sense L4 and one end of the 8th electric capacity C8 are double 6th foot of throw switch SW1 connects, the 2nd foot of double-point double-throw switch SW1, the 5th of double-point double-throw switch SW1 the The connection end of the source electrode of foot and one end of the 4th resistance R4, the emitter stage of audion Q1 and the second PMOS M2 is even Connect, the 1st foot of double-point double-throw switch SW1, the 4th foot and the 1st of USB interface J2 the of double-point double-throw switch SW1 Foot connects, and the 2nd foot of the 4th foot, the 5th foot, the 6th foot and the D/C power socket J1 of USB interface J2 connects.Negative Carry power supply circuits by the accessible portable power source powered by USB port of USB interface J2.

Claims

1. a source of sound device, including source of sound device main body circuit, it is characterised in that described source of sound device also includes power management core Sheet control circuit, power supply input circuit, load supplying circuit, battery charger, voltage output feedback circuit, electric current Regulating allocation circuit, lithium battery and battery electric quantity indicating circuit；Described power management chip control circuit is respectively with described Power supply input circuit, described electric current regulating allocation circuit, the positive pole of described lithium battery, the output of described voltage anti- Current feed circuit, described load supplying circuit, described battery charger and described battery electric quantity indicating circuit connect； The positive pole of described battery charger and described lithium battery connects, described load supplying circuit and described source of sound device Main body circuit connects, and described power supply input circuit accesses external power source；

A kind of source of sound device the most according to claim 1, it is characterised in that it is defeated that described power supply input circuit has first Enter end, the second input, the first outfan and the second outfan；Described load supplying circuit have first input end, Second input and outfan；Described battery electric quantity indicating circuit has first input end, the second input, the 3rd defeated Enter end, four-input terminal and the 5th input；Described electric current regulating allocation circuit has first input end, the second input End, the 3rd input, four-input terminal and the 5th input；The first input end of described power supply input circuit is used for connecing Enter external power source；

A kind of source of sound device the most according to claim 2, it is characterised in that described power supply input circuit includes the first electricity Resistance, the second resistance, the 3rd resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, One inductance, the second inductance, the first PMOS and D/C power socket；The second described inductance is common mode inductance；Described One end of the first resistance, one end of the first described electric capacity, one end of the second described electric capacity and the first described inductance One end connect and its to connect end be the first outfan of described power supply input circuit, another of the first described resistance End, the other end of described first electric capacity and the equal ground connection of the other end of the second described electric capacity, the first described inductance another The drain electrode of one end and the first described PMOS connects, the source electrode of the first described PMOS, the described second electricity Resistance one end, one end of the 3rd described resistance, one end of the 4th described electric capacity, one end of the 5th described electric capacity and 2nd foot of the second described inductance connects, the grid of the first described PMOS and the other end of the second described resistance Connect and it connects the second input that end is described power supply input circuit；The other end of the 3rd described resistance and described One end of the 3rd electric capacity connect and its to connect end be the second outfan of described power supply input circuit, the 3rd described electricity The other end, the other end of the 4th described electric capacity and the equal ground connection of the other end of the 5th described electric capacity held；Described second 1st foot of inductance and the 1st foot of described D/C power socket connect, the 3rd foot ground connection of the second described inductance, institute 4th foot of the second inductance stated and the 3rd foot of described D/C power socket connect, and described D/C power socket is institute The first input end of the power supply input circuit stated.

A kind of source of sound device the most according to claim 3, it is characterised in that described load supplying circuit includes the 4th electricity Resistance, the 5th resistance, the 6th resistance, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity, the 3rd inductance, Four inductance, audion and the second PMOS；One end of the 6th described electric capacity, one end of the 7th described electric capacity and institute The one end of the 4th inductance stated connects and it connects the first input end that end is described load supplying circuit, described the 6th One end of the other end of electric capacity, the other end of the 7th described electric capacity and the 3rd described inductance connects and its connection end is institute Second input of the load supplying circuit stated, the other end of the 4th described inductance and one end of the 8th described electric capacity are even Connecing, the source electrode of described one end of the 4th resistance, the emitter stage of described audion and the second described PMOS connects, The other end of the 4th described inductance and one end of the 8th described electric capacity connect end and one end of the 4th described resistance, The connection end of the emitter stage of described audion and the source electrode of the second described PMOS connects, the 8th described electric capacity The other end and the equal ground connection of the other end of the 3rd described inductance, the other end of the 4th described resistance, the 6th described resistance One end and described audion base stage connect, the colelctor electrode of described audion, one end of the 5th described resistance and The grid of the second described PMOS connects, the other end of the 5th described resistance, the other end of the 6th described resistance With the equal ground connection in one end of the 9th described electric capacity, the other end of the 9th described electric capacity and the leakage of the second described PMOS Pole connects and it connects the outfan that end is described load supplying circuit, the outfan of described load supplying circuit and institute The source of sound device main body circuit stated connects.

A kind of source of sound device the most according to claim 4, it is characterised in that described load supplying circuit also includes double-pole Commutator and USB interface；The connection end of the other end of the 4th described inductance and one end of the 8th described electric capacity leads to Cross described double-point double-throw switch and described one end of the 4th resistance, the emitter stage of described audion and described second The connection end of the source electrode of PMOS connects, the other end of the 4th described inductance and the company of one end of the 8th described electric capacity The 6th foot connecing end, the 3rd foot of described double-point double-throw switch and described double-point double-throw switch connects, described double-pole 2nd foot of commutator, the 5th foot and described one end of the 4th resistance of described double-point double-throw switch, described three The connection end of the emitter stage of pole pipe and the source electrode of the second described PMOS connects, the 1st of described double-point double-throw switch 1st foot of foot, the 4th foot of described double-point double-throw switch and described USB interface connects, described USB interface The 4th foot, the 5th foot, the 6th foot and described D/C power socket the 2nd foot connect.

A kind of source of sound device the most according to claim 2, it is characterised in that described voltage output feedback circuit includes the Seven resistance, the 8th resistance and the tenth electric capacity；One end of one end of the 7th described resistance and the tenth described electric capacity connect and It connects the input that end is described voltage output feedback circuit, the described other end of the 7th resistance, the described the 8th One end of resistance and the other end of the tenth described electric capacity connect and its connection end is described voltage output feedback circuit Outfan, the other end ground connection of the 8th described resistance；Described battery charger include the 11st electric capacity, the 12nd Electric capacity and the 5th inductance, one end of the 11st described electric capacity and one end of the 5th described inductance connect and its connection end is The outfan of described battery charger, the other end of the 5th described inductance and one end of the 12nd described electric capacity are even Connect and its to connect end be the input of described battery charger, the other end of the 11st described electric capacity and described the The equal ground connection of the other end of 12 electric capacity, the outfan of described battery charger and the positive pole of described lithium battery connect.

A kind of source of sound device the most according to claim 2, it is characterised in that described battery electric quantity indicating circuit includes the Nine resistance, the tenth resistance, the 11st resistance, the 12nd resistance, the 13rd resistance, the 14th resistance, the 15th resistance, 16th resistance, the 17th resistance, the 13rd electric capacity, the first light emitting diode, the second light emitting diode, the 3rd luminescence Diode and the 4th light emitting diode；One end of the 13rd described electric capacity and one end of the 9th described resistance connect and it Connecting end is the first input end of described battery electric quantity indicating circuit, the other end of the 9th described resistance, described the One end of ten resistance and one end of the 13rd described resistance connect and its connection end is described battery electric quantity indicating circuit The second input, the other end of the tenth described resistance, one end of the 11st described resistance and the described the 14th electricity One end of resistance connects and it connects the 3rd input that end is described battery electric quantity indicating circuit, the 11st described resistance The other end, one end of the 12nd described resistance and the 15th described resistance one end connect and its connect end be described The four-input terminal of battery electric quantity indicating circuit, the other end of the 12nd described resistance, the 16th described resistance It is the 5th defeated that one end of one end and the 17th described resistance connects and it connects that end is described battery electric quantity indicating circuit Enter end；The other end of the 13rd described resistance and the positive pole of the first described light emitting diode connect, described the 14th The positive pole of the other end of resistance and the second described light emitting diode connects, the other end of the 15th described resistance and described The positive pole of the 3rd light emitting diode connect, the other end of the 16th described resistance and the 4th described light emitting diode Positive pole connect, the other end of the 13rd described electric capacity, the negative pole of the first described light emitting diode, described second The negative pole of optical diode, the negative pole of the 3rd described light emitting diode, the negative pole of the 4th described light emitting diode and described The equal ground connection of the other end of the 17th resistance.

A kind of source of sound device the most according to claim 2, it is characterised in that described electric current regulating allocation circuit includes the 14 electric capacity, the 18th resistance, the 19th resistance, the 20th resistance, the 21st resistance and the 22nd resistance；Institute The one end of the 18th resistance stated is the first input end of described electric current regulating allocation circuit, the 14th described electric capacity It is second defeated that one end of one end and the 19th described resistance connects and it connects that end is described electric current regulating allocation circuit Entering end, one end of the 20th described resistance is the 3rd input of described electric current regulating allocation circuit, described second One end of 11 resistance is the four-input terminal of described electric current regulating allocation circuit, one end of the 22nd described resistance For the 5th input of described electric current regulating allocation circuit, the described other end of the 18th resistance, the described the 19th The other end of resistance, the other end of the 20th described resistance, the other end of the 21st described resistance, described The other end of 22 resistance and the equal ground connection of the other end of the 14th described electric capacity.

A kind of source of sound device the most according to claim 2, it is characterised in that described source of sound device also includes that battery excess temperature is protected Protection circuit；Described battery thermal-shutdown circuit has the first outfan and the second outfan, described battery overheat protector First outfan of circuit and the 28th foot of described power management chip connect, described battery thermal-shutdown circuit 21st foot of the second outfan and described power management chip connects；Described battery thermal-shutdown circuit includes the tenth Five electric capacity, the 23rd resistance, the 24th resistance and critesistor；One end of the 23rd described resistance and described One end of the 15th electric capacity connect and its to connect end be the first outfan of described battery thermal-shutdown circuit, described The other end ground connection of the 15th electric capacity, the other end of the 23rd described resistance, one end of the 24th described resistance Connect with one end of described critesistor and it connects the second outfan that end is described battery thermal-shutdown circuit, institute The other end of the 24th resistance stated and the equal ground connection of the other end of described critesistor.

A kind of source of sound device the most according to claim 2, it is characterised in that described source of sound device also includes that battery is crossed and flows through Voltage protection circuit, described battery overcurrent-overvoltage protecting circuit include the 25th resistance, the 26th resistance, the 20th Seven resistance, the 16th electric capacity, model be the battery protection chip of DW01, model be the first chip and the type of 8205A It number it is second chip of 8205A；One end of the 25th described resistance and the positive pole of described lithium battery connect, described The other end of the 25th resistance, one end of the 16th described electric capacity and described battery protection chip the 5th foot even Connect, the described other end of the 16th electric capacity, the 6th foot of described battery protection chip, the of the first described chip 2 feet, the 3rd foot of the first described chip, the 2nd foot of the second described chip, the 3rd foot of the second described chip, The negative pole of one end of the 26th described resistance and described lithium battery connects, the 3rd foot of described battery protection chip, 5th foot of the first described chip and the 5th foot of the second described chip connect, the 1st of described battery protection chip 4th foot of foot, the 4th foot of the first described chip and the second described chip connects, the 1st of the first described chip 8th foot of foot, the 8th foot of the first described chip, the 1st foot of the second described chip and the second described chip is even Connecing, the 2nd foot of described battery protection chip and one end of the 27th described resistance connect, described the 26th The other end of resistance, the other end of the 27th described resistance, the 6th foot of the first described chip, described first 7th foot of chip, the 6th foot of the second described chip and the 7th equal ground connection of foot of the second described chip.