CN105116953A

CN105116953A - Sound moduler

Info

Publication number: CN105116953A
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: 2015-12-02
Anticipated expiration: 2035-08-20
Also published as: CN105116953B

Abstract

The invention discloses a sound moduler. The sound moduler comprises a sound moduler body circuit. The sound moduler further comprises a power source management chip control circuit, a power input circuit, a load power supply circuit, a battery charging circuit, a voltage output feedback circuit, a current adjusting and configuring circuit, a lithium battery and a battery electric quantity indicating circuit. The power source management chip control circuit is connected with the power source input circuit, the current adjusting and configuring circuit, the positive electrode of the lithium battery, the voltage output feedback circuit, the load power supply circuit, the battery charging circuit and the battery electric quantity indicating circuit. The battery charging circuit is connected with the positive electrode of the lithium battery. The load power supply circuit is connected with the sound moduler body circuit. The power input circuit is connected into an external power source. The sound moduler has the advantage that the lithium battery can provide work voltage outdoors or no external power source exists so that the sound moduler can still work normally.

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 trigger pip, and source of sound device obtains this trigger pip and the sound signal obtaining after carrying out identifying processing to this trigger pip needing exports.Existing source of sound device needs access external power source normally to work.At present, existing source of sound device all adopts external power source (civil power) as power supply, when when outdoor or when not having an external power source, source of sound device cannot normally work, and will electronic drum be caused cannot to use when not having external power source thus.

Summary of the invention

Technical matters to be solved by this invention be to provide a kind of when outdoor or there is no an external power source, the source of sound device that still can normally work.

The present invention solves the problems of the technologies described above adopted technical scheme: a kind of source of sound device, comprise source of sound device main body circuit, described source of sound device also comprises power management chip control circuit, power supply input circuit, load supplying circuit, battery charger, voltage output feedack circuit, Current adjustment configuration circuit, lithium battery and battery electric quantity indicating circuit; Described power management chip control circuit is connected with the positive pole of described power supply input circuit, described Current adjustment configuration circuit, described lithium battery, described voltage output feedack circuit, described load supplying circuit, described battery charger and described battery electric quantity indicating circuit respectively; Described battery charger is connected with the positive pole of described lithium battery, and described load supplying circuit is connected with described source of sound device main body circuit, described power supply input circuit access external power source;

When described power supply input circuit access external power source, described power management chip control circuit carries out allocation manager to the voltage that described external power source provides, the voltage distribution that described external power source provides is become two-way, one road voltage as supply voltage by described load supplying circuit for described source of sound device main body circuit provides operating voltage, another road voltage is described lithium cell charging as charging voltage by described battery charger, in power supply and charging process, described power management chip control circuit adjusts the size of supply voltage and charging voltage in real time according to the signal of described voltage output feedack circuit and described Current adjustment configuration circuit, to ensure normal power supply and charging, when outdoor or when there is no an external power source, the voltage that lithium battery after charging provides is provided operating voltage by described load supplying circuit to described source of sound device main body circuit by described power management chip control circuit, in power supply process, described power management chip control circuit adjusts according to the signal of described voltage output feedack circuit and described Current adjustment configuration circuit the operating voltage that described load supplying circuit provides in real time.

Described power supply input circuit has first input end, the second input end, the first output terminal and the second output terminal; Described load supplying circuit has first input end, the second input end and output terminal; Described battery electric quantity indicating circuit has first input end, the second input end, the 3rd input end, four-input terminal and the 5th input end; Described Current adjustment configuration circuit has first input end, the second input end, the 3rd input end, four-input terminal and the 5th input end; The first input end of described power supply input circuit is for accessing external power source;

Described power management chip control circuit comprises the power management chip that model is ETA6082, the 1st pin of described power management chip, the 12nd pin, the 19th pin, the 32nd pin and the 33rd pin ground connection; 3rd pin of described power management chip is connected with the positive pole of described lithium battery, 29th pin, the 30th pin of described power management chip are all connected with the first output terminal of described power supply input circuit with the 31st pin, 27th pin of described power management chip is connected with the second output terminal of described power supply input circuit, and the 15th pin of described power management chip is connected with the second input end of described power supply input circuit; 4th pin of described power management chip is connected with the 5th pin and its link is connected with the input end of described voltage output feedack circuit and the first input end of described load supplying circuit respectively, and the 8th pin, the 9th pin of described power management chip are connected with the second input end of described load supplying circuit; 14th pin of described power management chip is connected with the output terminal of described voltage output feedack circuit; 6th pin, the 7th pin of described power management chip are connected with the input end of described battery charger; 26th pin of described power management chip is connected with the first input end of described battery electric quantity indicating circuit, 22nd pin of described power management chip is connected with the second input end of described battery electric quantity indicating circuit, 23rd pin of described power management chip is connected with the 3rd input end of described battery electric quantity indicating circuit, 24th pin of described power management chip is connected with the four-input terminal of described battery electric quantity indicating circuit, and the 25th pin of described power management chip is connected with the 5th input end of described battery electric quantity indicating circuit; 11st pin of described power management chip is connected with the first input end of described Current adjustment configuration circuit, 13rd pin of described power management chip is connected with the second input end of described Current adjustment configuration circuit, 16th pin of described power management chip is connected with the 3rd input end of described Current adjustment configuration circuit, 17th pin of described power management chip is connected with the four-input terminal of described Current adjustment configuration circuit, and the 20th pin of described power management chip is connected with the 5th input end of described Current adjustment configuration circuit.

Described power supply input circuit comprises the first 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, the first inductance, the second inductance, the first PMOS and DC supply socket, the second described inductance is common mode inductance, one end of the first described resistance, one end of the first described electric capacity, one end of the second described electric capacity is connected with one end of the first described inductance and its link is the first output terminal of described power supply input circuit, the other end of the first described resistance, the other end of the first described electric capacity and the equal ground connection of the other end of the second described electric capacity, the other end of the first described inductance is connected with the drain electrode of the first described PMOS, the source electrode of the first described PMOS, one end of the second described resistance, one end of the 3rd described resistance, one end of the 4th described electric capacity, one end of the 5th described electric capacity is connected with the 2nd pin of the second described inductance, the grid of the first described PMOS is connected with the other end of the second described resistance and its link is the second input end of described power supply input circuit, the other end of the 3rd described resistance is connected with one end of the 3rd described electric capacity and its link is the second output terminal of described power supply input circuit, the equal ground connection of the other end of the other end of the 3rd described electric capacity, the other end of the 4th described electric capacity and the 5th described electric capacity, 1st pin of the second described inductance is connected with the 1st pin of described DC supply socket, 3rd pin ground connection of the second described inductance, 4th pin of the second described inductance is connected with the 2nd pin of described DC supply socket, and described DC supply socket is the first input end of described power supply input circuit.

Described load supplying circuit comprises the 4th 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, the 4th inductance, triode and the second PMOS, one end of the 6th described electric capacity, one end of the 7th described electric capacity is connected with one end of the 4th described inductance and its link is the first input end of described load supplying circuit, the other end of the 6th described electric capacity, the other end of the 7th described electric capacity is connected with one end of the 3rd described inductance and its link is the second input end of described load supplying circuit, the other end of the 4th described inductance is connected with one end of the 8th described electric capacity, one end of the 4th described resistance, the emitter of described triode is connected with the source electrode of the second described PMOS, the link of the other end of the 4th described inductance and one end of the 8th described electric capacity and one end of the 4th described resistance, the emitter of described triode is connected with the link of the source electrode of the second described PMOS, the other end of the 8th described electric capacity and the equal ground connection of the other end of the 3rd described inductance, the other end of the 4th described resistance, one end of the 6th described resistance is connected with the base stage of described triode, the collector of described triode, one end of the 5th described resistance is connected with the grid of the second described PMOS, the other end of the 5th described resistance, the other end of the 6th described resistance and the equal ground connection in one end of the 9th described electric capacity, the other end of the 9th described electric capacity is connected with the drain electrode of the second described PMOS and its link is the output terminal of described load supplying circuit, the output terminal of described load supplying circuit is connected with described source of sound device main body circuit.

Described load supplying circuit also comprises double-point double-throw switch and USB interface, the link of the other end of the 4th described inductance and one end of the 8th described electric capacity passes through one end of described double-point double-throw switch and the 4th described resistance, the emitter of described triode is connected with the link of the source electrode of the second described PMOS, the link of the other end of the 4th described inductance and one end of the 8th described electric capacity, 3rd pin of described double-point double-throw switch is connected with the 6th pin of described double-point double-throw switch, 2nd pin of described double-point double-throw switch, 5th pin of described double-point double-throw switch and one end of the 4th described resistance, the emitter of described triode is connected with the link of the source electrode of the second described PMOS, 1st pin of described double-point double-throw switch, 4th pin of described double-point double-throw switch is connected with the 1st pin of described USB interface, 4th pin of described USB interface, 5th pin, 6th pin is connected with the 2nd pin of described DC supply socket.

Described voltage output feedack circuit comprises the 7th resistance, the 8th resistance and the tenth electric capacity; One end of the 7th described resistance is connected with one end of the tenth described electric capacity and its link is the input end of described voltage output feedack circuit, the other end of the 7th described resistance, one end of the 8th described resistance are connected with the other end of the tenth described electric capacity and its link is the output terminal of described voltage output feedack circuit, the other end ground connection of the 8th described resistance; Described battery charger comprises the 11 electric capacity, the 12 electric capacity and the 5th inductance, one end of the 11 described electric capacity is connected with one end of the 5th described inductance and its link is the output terminal of described battery charger, the other end of the 5th described inductance is connected with one end of the 12 described electric capacity and its link is the input end of described battery charger, the other end of the 11 described electric capacity and the equal ground connection of the other end of the 12 described electric capacity, the output terminal of described battery charger is connected with the positive pole of described lithium battery.

Described battery electric quantity indicating circuit comprises the 9th resistance, the tenth resistance, the 11 resistance, the 12 resistance, the 13 resistance, the 14 resistance, the 15 resistance, the 16 resistance, the 17 resistance, the 13 electric capacity, the first light emitting diode, the second light emitting diode, the 3rd light emitting diode and the 4th light emitting diode, one end of the 13 described electric capacity is connected with one end of the 9th described resistance and its link is the first input end of described battery electric quantity indicating circuit, the other end of the 9th described resistance, one end of the tenth described resistance is connected with one end of the 13 described resistance and its link is the second input end of described battery electric quantity indicating circuit, the other end of the tenth described resistance, one end of the 11 described resistance is connected with one end of the 14 described resistance and its link is the 3rd input end of described battery electric quantity indicating circuit, the other end of the 11 described resistance, one end of the 12 described resistance is connected with one end of the 15 described resistance and its link is the four-input terminal of described battery electric quantity indicating circuit, the other end of the 12 described resistance, one end of the 16 described resistance is connected with one end of the 17 described resistance and its link is the 5th input end of described battery electric quantity indicating circuit, the other end of the 13 described resistance is connected with the positive pole of the first described light emitting diode, the other end of the 14 described resistance is connected with the positive pole of the second described light emitting diode, the other end of the 15 described resistance is connected with the positive pole of the 3rd described light emitting diode, the other end of the 16 described resistance is connected with the positive pole of the 4th described light emitting diode, the other end of the 13 described electric capacity, the negative pole of the first described 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 17 described resistance.

Described Current adjustment configuration circuit comprises the 14 electric capacity, the 18 resistance, the 19 resistance, the 20 resistance, the 21 resistance and the 22 resistance, one end of the 18 described resistance is the first input end of described Current adjustment configuration circuit, one end of the 14 described electric capacity is connected with one end of the 19 described resistance and its link is the second input end of described Current adjustment configuration circuit, one end of the 20 described resistance is the 3rd input end of described Current adjustment configuration circuit, one end of the 21 described resistance is the four-input terminal of described Current adjustment configuration circuit, one end of the 22 described resistance is the 5th input end of described Current adjustment configuration circuit, the other end of the 18 described resistance, the other end of the 19 described resistance, the other end of the 20 described resistance, the other end of the 21 described resistance, the other end of the 22 described resistance and the equal ground connection of the other end of the 14 described electric capacity.

Described source of sound device also comprises battery thermal-shutdown circuit; Described battery thermal-shutdown circuit has the first output terminal and the second output terminal, first output terminal of described battery thermal-shutdown circuit is connected with the 28th pin of described power management chip, and the second output terminal of described battery thermal-shutdown circuit is connected with the 21st pin of described power management chip; Described battery thermal-shutdown circuit comprises the 15 electric capacity, the 23 resistance, the 24 resistance and thermistor; One end of the 23 described resistance is connected with one end of the 15 described electric capacity and its link is the first output terminal of described battery thermal-shutdown circuit; the other end ground connection of the 15 described electric capacity; the other end of the 23 described resistance, one end of the 24 described resistance are connected with one end of described thermistor and its link is the second output terminal, the other end of the 24 described resistance and the equal ground connection of the other end of described thermistor of described battery thermal-shutdown circuit.

Described source of sound device also comprises battery overcurrent-overvoltage protecting circuit, second chip of the battery protection chip that described battery overcurrent-overvoltage protecting circuit comprises the 25 resistance, the 26 resistance, the 27 resistance, the 16 electric capacity, model are DW01, model to be first chip of 8205A and model be 8205A, one end of the 25 described resistance is connected with the positive pole of described lithium battery, the other end of the 25 described resistance, one end of the 16 described electric capacity is connected with the 5th pin of described battery protection chip, the other end of the 16 described electric capacity, 6th pin of described battery protection chip, 2nd pin of the first described chip, 3rd pin of the first described chip, 2nd pin of the second described chip, 3rd pin of the second described chip, one end of the 26 described resistance is connected with the negative pole of described lithium battery, the 3rd pin of described battery protection chip, 5th pin of the first described chip is connected with the 5th pin of the second described chip, the 1st pin of described battery protection chip, 4th pin of the first described chip is connected with the 4th pin of the second described chip, the 1st pin of the first described chip, 8th pin of the first described chip, 1st pin of the second described chip is connected with the 8th pin of the second described chip, and the 2nd pin of described battery protection chip is connected with one end of the 27 described resistance, the other end of the 26 described resistance, the other end of the 27 described resistance, 6th pin of the first described chip, 7th pin of the first described chip, 6th pin of the second described chip and the equal ground connection of the 7th pin of the second described chip.

Compared with prior art, the invention has the advantages that by arranging power management chip control circuit, power supply input circuit, load supplying circuit, battery charger, voltage output feedack circuit, Current adjustment configuration circuit, lithium battery and battery electric quantity indicating circuit, when power supply input circuit access external power source, power management chip control circuit carries out allocation manager to the voltage that external power source provides, the voltage distribution provided by external power source becomes two-way, one road voltage as supply voltage by load supplying circuit for source of sound device main body circuit provides operating voltage, another road voltage is lithium cell charging as charging voltage by battery charger, in power supply and charging process, power management chip control circuit adjusts the size of supply voltage and charging voltage in real time according to the signal of voltage output feedack circuit and Current adjustment configuration circuit, to ensure normal power supply and charging, when outdoor or when there is no an external power source, the voltage that lithium battery after charging provides is provided operating voltage by load supplying circuit to source of sound device main body circuit by power management chip control circuit, in power supply process, power management chip control circuit adjusts according to the signal of voltage output feedack circuit and Current adjustment configuration circuit the operating voltage that load supplying circuit provides in real time, guarantee source of sound device is in outdoor or when not having external power source thus, still can normally work.

Accompanying drawing explanation

Fig. 1 is theory diagram of the present invention;

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

Fig. 3 is the circuit diagram of 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 voltage output feedack circuit of the present invention;

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

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

Fig. 9 is the circuit diagram of Current adjustment configuration circuit of the present invention;

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

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

Embodiment

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

Embodiment one: as shown in Figure 1, a kind of source of sound device, comprise source of sound device main body circuit, source of sound device also comprises power management chip control circuit, power supply input circuit, load supplying circuit, battery charger, voltage output feedack circuit, Current adjustment configuration circuit, lithium battery and battery electric quantity indicating circuit, power management chip control circuit is connected with the positive pole of power supply input circuit, Current adjustment configuration circuit, lithium battery, voltage output feedack circuit, load supplying circuit, battery charger and battery electric quantity indicating circuit respectively, battery charger is connected with the positive pole of lithium battery, and load supplying circuit is connected with source of sound device main body circuit, power supply input circuit access external power source, when power supply input circuit access external power source, power management chip control circuit carries out allocation manager to the voltage that external power source provides, the voltage distribution provided by external power source becomes two-way, one road voltage as supply voltage by load supplying circuit for source of sound device main body circuit provides operating voltage, another road voltage is lithium cell charging as charging voltage by battery charger, in power supply and charging process, power management chip control circuit adjusts the size of supply voltage and charging voltage in real time according to the signal of voltage output feedack circuit and Current adjustment configuration circuit, to ensure normal power supply and charging, when outdoor or when there is no an external power source, the voltage that lithium battery after charging provides is provided operating voltage by load supplying circuit to source of sound device main body circuit by power management chip control circuit, in power supply process, power management chip control circuit adjusts according to the signal of voltage output feedack circuit and Current adjustment configuration circuit the operating voltage that load supplying circuit provides in real time.

As shown in Figure 2, in the present embodiment, power supply input circuit has first input end, the second input end, the first output terminal and the second output terminal; Load supplying circuit has first input end, the second input end and output terminal; Battery electric quantity indicating circuit has first input end, the second input end, the 3rd input end, four-input terminal and the 5th input end; Current adjustment configuration circuit has first input end, the second input end, the 3rd input end, four-input terminal and the 5th input end; The first input end of power supply input circuit is for accessing external power source; Power management chip control circuit comprises the power management chip U1 that model is ETA6082, the 1st pin of power management chip U1, the 12nd pin, the 19th pin, the 32nd pin and the 33rd pin ground connection; 3rd pin of power management chip U1 is connected with the positive pole of lithium battery, 29th pin, the 30th pin of power management chip U1 are all connected with the first output terminal of power supply input circuit with the 31st pin, 27th pin of power management chip U1 is connected with the second output terminal of power supply input circuit, and the 15th pin of power management chip U1 is connected with the second input end of power supply input circuit; 4th pin of power management chip U1 is connected with the 5th pin and its link is connected with the input end of voltage output feedack circuit and the first input end of load supplying circuit respectively, and the 8th pin, the 9th pin of power management chip U1 are connected with the second input end of load supplying circuit; 14th pin of power management chip U1 is connected with the output terminal of voltage output feedack circuit; 6th pin, the 7th pin of power management chip U1 are connected with the input end of battery charger; 26th pin of power management chip U1 is connected with the first input end of battery electric quantity indicating circuit, 22nd pin of power management chip U1 is connected with the second input end of battery electric quantity indicating circuit, 23rd pin of power management chip U1 is connected with the 3rd input end of battery electric quantity indicating circuit, 24th pin of power management chip U1 is connected with the four-input terminal of battery electric quantity indicating circuit, and the 25th pin of power management chip U1 is connected with the 5th input end of battery electric quantity indicating circuit; 11st pin of power management chip U1 is connected with the first input end of Current adjustment configuration circuit, 13rd pin of power management chip U1 is connected with the second input end of Current adjustment configuration circuit, 16th pin of power management chip U1 is connected with the 3rd input end of Current adjustment configuration circuit, 17th pin of power management chip U1 is connected with the four-input terminal of Current adjustment configuration circuit, and the 20th pin of power management chip U1 is connected with the 5th input end of Current adjustment configuration circuit.

As shown in Figure 3, in the present embodiment, power supply input circuit comprises the first resistance R1, the second resistance R2, the 3rd 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, the first inductance L 1, second inductance L 2, first PMOS M1 and DC supply socket J1, second inductance L 2 is common mode inductance, one end of first resistance R1, one end of first electric capacity C1, one end of second electric capacity C2 is connected with one end of the first inductance L 1 and its link is the first output terminal of power supply input circuit, the other end of the first resistance R1, the other end of the first electric capacity C1 and the equal ground connection of the other end of the second electric capacity C2, the other end of the first inductance L 1 is connected with the drain electrode of the first PMOS M1, the source electrode of the first PMOS M1, one end of second resistance R2, one end of 3rd resistance R3, one end of 4th electric capacity C4, one end of 5th electric capacity C5 is connected with the 2nd pin of the second inductance L 2, the grid of the first PMOS M1 is connected with the other end of the second resistance R2 and its link is the second input end of power supply input circuit, the other end of the 3rd resistance R3 is connected with one end of the 3rd electric capacity C3 and its link is the second output terminal of power supply input circuit, the equal ground connection of the other end of the other end of the 3rd electric capacity C3, the other end of the 4th electric capacity C4 and the 5th electric capacity C5, 1st pin of the second inductance L 2 is connected with the 1st pin of DC supply socket J1, the 3rd pin ground connection of the second inductance L 2, and the 4th pin of the second inductance L 2 is connected with the 3rd pin of DC supply socket J1, and DC supply socket J1 is the first input end of power supply input circuit.

As shown in Figure 4, in the present embodiment, load supplying circuit comprises the 4th resistance R4, the 5th resistance R5, the 6th 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 L 3, the 4th inductance L 4, triode Q1 and the second PMOS M2, one end of 6th electric capacity C6, one end of 7th electric capacity C7 is connected with one end of the 4th inductance L 4 and its link is the first input end of load supplying circuit, the other end of the 6th electric capacity C6, the other end of the 7th electric capacity C7 is connected with one end of the 3rd inductance L 3 and its link is the second input end of load supplying circuit, the other end of the 4th inductance L 4 is connected with one end of the 8th electric capacity C8, one end of 4th resistance R4, the emitter of triode Q1 is connected with the source electrode of the second PMOS M2, the link of the other end of the 4th inductance L 4 and one end of the 8th electric capacity C8 and one end of the 4th resistance R4, the emitter of triode Q1 is connected with the link of the source electrode of the second PMOS M2, the other end of the 8th electric capacity C8 and the equal ground connection of the other end of the 3rd inductance L 3, the other end of the 4th resistance R4, one end of 6th resistance R6 is connected with the base stage of triode Q1, the collector of triode Q1, one end of 5th resistance R5 is connected with the grid of the second PMOS M2, the other end of the 5th resistance R5, the other end of the 6th resistance R6 and the equal ground connection in one end of the 9th electric capacity C9, the other end of the 9th electric capacity C9 is connected with the drain electrode of the second PMOS M2 and its link is the output terminal of load supplying circuit, the output terminal of load supplying circuit is connected with source of sound device main body circuit.

As shown in Figure 6, in the present embodiment, voltage output feedack circuit comprises the 7th resistance R7, the 8th resistance R8 and the tenth electric capacity C10; One end of 7th resistance R7 is connected with one end of the tenth electric capacity C10 and its link is the input end of voltage output feedack circuit, the other end of the 7th resistance R7, one end of the 8th resistance R8 are connected with the other end of the tenth electric capacity C10 and its link is the output terminal of voltage output feedack circuit, the other end ground connection of the 8th resistance R8; As shown in Figure 7, battery charger comprises the 11 electric capacity C11, the 12 electric capacity C12 and the 5th inductance L 5, one end of 11 electric capacity C11 is connected with one end of the 5th inductance L 5 and its link is the output terminal of battery charger, the other end of the 5th inductance L 5 is connected with one end of the 12 electric capacity C12 and its link is the input end of battery charger, the other end of the 11 electric capacity C11 and the equal ground connection of the other end of the 12 electric capacity C12, the output terminal of battery charger is connected with the positive pole of lithium battery.

As shown in Figure 8, in the present embodiment, battery electric quantity indicating circuit comprises the 9th resistance R9, the tenth resistance R10, the 11 resistance R11, the 12 resistance R12, the 13 resistance R13, the 14 resistance R14, the 15 resistance R15, the 16 resistance R16, the 17 resistance R17, the 13 electric capacity C13, the first light emitting diode D1, the second light emitting diode D2, the 3rd light emitting diode D3 and the 4th light emitting diode D4, one end of 13 electric capacity C13 is connected with one end of the 9th resistance R9 and its link is the first input end of battery electric quantity indicating circuit, the other end of the 9th resistance R9, one end of tenth resistance R10 is connected with one end of the 13 resistance R13 and its link is the second input end of battery electric quantity indicating circuit, the other end of the tenth resistance R10, one end of 11 resistance R11 is connected with one end of the 14 resistance R14 and its link is the 3rd input end of battery electric quantity indicating circuit, the other end of the 11 resistance R11, one end of 12 resistance R12 is connected with one end of the 15 resistance R15 and its link is the four-input terminal of battery electric quantity indicating circuit, the other end of the 12 resistance R12, one end of 16 resistance R16 is connected with one end of the 17 resistance R17 and its link is the 5th input end of battery electric quantity indicating circuit, the other end of the 13 resistance R13 is connected with the positive pole of the first light emitting diode D1, the other end of the 14 resistance R14 is connected with the positive pole of the second light emitting diode D2, the other end of the 15 resistance R15 is connected with the positive pole of the 3rd light emitting diode D3, the other end of the 16 resistance R16 is connected with the positive pole of the 4th light emitting diode D4, the other end of the 13 electric capacity C13, the negative pole of the first light emitting diode D1, the negative pole of the second light emitting diode D2, the negative pole of the 3rd light emitting diode D3, the negative pole of the 4th light emitting diode D4 and the equal ground connection of the other end of the 17 resistance R17.

As shown in Figure 9, in the present embodiment, Current adjustment configuration circuit comprises the 14 electric capacity C14, the 18 resistance R18, the 19 resistance R19, the 20 resistance R20, the 21 resistance R21 and the 22 resistance R22, one end of 18 resistance R18 is the first input end of Current adjustment configuration circuit, one end of 14 electric capacity C14 is connected with one end of the 19 resistance R19 and its link is the second input end of Current adjustment configuration circuit, one end of 20 resistance R20 is the 3rd input end of Current adjustment configuration circuit, one end of 21 resistance R21 is the four-input terminal of Current adjustment configuration circuit, one end of 22 resistance R22 is the 5th input end of Current adjustment configuration circuit, the other end of the 18 resistance R18, the other end of the 19 resistance R19, the other end of the 20 resistance R20, the other end of the 21 resistance R21, the other end of the 22 resistance R22 and the equal ground connection of the other end of the 14 electric capacity C14.

As shown in Figure 10, in the present embodiment, source of sound device also comprises battery thermal-shutdown circuit; Battery thermal-shutdown circuit has the first output terminal and the second output terminal, and the first output terminal of battery thermal-shutdown circuit is connected with the 28th pin of power management chip U1, and the second output terminal of battery thermal-shutdown circuit is connected with the 21st pin of power management chip U1; Battery thermal-shutdown circuit comprises the 15 electric capacity C15, the 23 resistance R23, the 24 resistance R24 and thermistor RT1; One end of 23 resistance R23 is connected with one end of the 15 electric capacity C15 and its link is the first output terminal of battery thermal-shutdown circuit; the other end ground connection of the 15 electric capacity C15; the other end of the 23 resistance R23, one end of the 24 resistance R24 are connected with one end of thermistor RT1 and its link is the second output terminal, the other end of the 24 resistance R24 and the equal ground connection of the other end of thermistor RT1 of battery thermal-shutdown circuit.

As shown in figure 11, in the present embodiment, source of sound device also comprises battery overcurrent-overvoltage protecting circuit, the second chip U4 of the battery protection chip U2 that battery overcurrent-overvoltage protecting circuit comprises the 25 resistance R25, the 26 resistance R26, the 27 resistance R27, the 16 electric capacity C16, model are DW01, model to be the first chip U3 of 8205A and model be 8205A, one end of 25 resistance R25 is connected with the positive pole of lithium battery, the other end of the 25 resistance R25, one end of 16 electric capacity C16 is connected with the 5th pin of battery protection chip U2, the other end of the 16 electric capacity C16, 6th pin of battery protection chip U2, 2nd pin of the first chip U3, 3rd pin of the first chip U3, 2nd pin of the second chip U4, 3rd pin of the second chip U4, one end of 26 resistance R26 is connected with the negative pole of lithium battery, the 3rd pin of battery protection chip U2, 5th pin of the first chip U3 is connected with the 5th pin of the second chip U4, the 1st pin of battery protection chip U2, 4th pin of the first chip U3 is connected with the 4th pin of the second chip U4, the 1st pin of the first chip U3, 8th pin of the first chip U3, 1st pin of the second chip U4 is connected with the 8th pin of the second chip U4, and the 2nd pin of battery protection chip U2 is connected with one end of the 27 resistance R27, the other end of the 26 resistance R26, the other end of the 27 resistance R27, 6th pin of the first chip U3, 7th pin of the first chip U3, 6th pin of the second chip U4 and the equal ground connection of the 7th pin of the second chip U4.

Embodiment two: as shown in Figure 1, a kind of source of sound device, comprise source of sound device main body circuit, source of sound device also comprises power management chip control circuit, power supply input circuit, load supplying circuit, battery charger, voltage output feedack circuit, Current adjustment configuration circuit, lithium battery and battery electric quantity indicating circuit, power management chip control circuit is connected with the positive pole of power supply input circuit, Current adjustment configuration circuit, lithium battery, voltage output feedack circuit, load supplying circuit, battery charger and battery electric quantity indicating circuit respectively, battery charger is connected with the positive pole of lithium battery, and load supplying circuit is connected with source of sound device main body circuit, power supply input circuit access external power source, when power supply input circuit access external power source, power management chip control circuit carries out allocation manager to the voltage that external power source provides, the voltage distribution provided by external power source becomes two-way, one road voltage as supply voltage by load supplying circuit for source of sound device main body circuit provides operating voltage, another road voltage is lithium cell charging as charging voltage by battery charger, in power supply and charging process, power management chip control circuit adjusts the size of supply voltage and charging voltage in real time according to the signal of voltage output feedack circuit and Current adjustment configuration circuit, to ensure normal power supply and charging, when outdoor or when there is no an external power source, the voltage that lithium battery after charging provides is provided operating voltage by load supplying circuit to source of sound device main body circuit by power management chip control circuit, in power supply process, power management chip control circuit adjusts according to the signal of voltage output feedack circuit and Current adjustment configuration circuit the operating voltage that load supplying circuit provides in real time.

As shown in Figure 3, in the present embodiment, power supply input circuit comprises the first resistance R1, the second resistance R2, the 3rd 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, the first inductance L 1, second inductance L 2, first PMOS M1 and DC supply socket J1, second inductance L 2 is common mode inductance, one end of first resistance R1, one end of first electric capacity C1, one end of second electric capacity C2 is connected with one end of the first inductance L 1 and its link is the first output terminal of power supply input circuit, the other end of the first resistance R1, the other end of the first electric capacity C1 and the equal ground connection of the other end of the second electric capacity C2, the other end of the first inductance L 1 is connected with the leakage level of the first PMOS M1, the source electrode of the first PMOS M1, one end of second resistance R2, one end of 3rd resistance R3, one end of 4th electric capacity C4, one end of 5th electric capacity C5 is connected with the 2nd pin of the second inductance L 2, the grid of the first PMOS M1 is connected with the other end of the second resistance R2 and its link is the second input end of power supply input circuit, the other end of the 3rd resistance R3 is connected with one end of the 3rd electric capacity C3 and its link is the second output terminal of power supply input circuit, the equal ground connection of the other end of the other end of the 3rd electric capacity C3, the other end of the 4th electric capacity C4 and the 5th electric capacity C5, 1st pin of the second inductance L 2 is connected with the 1st pin of DC supply socket J1, the 3rd pin ground connection of the second inductance L 2, and the 4th pin of the second inductance L 2 is connected with the 3rd pin of DC supply socket J1, and DC supply socket J1 is the first input end of power supply input circuit.

As shown in Figure 5, in the present embodiment, load supplying circuit also comprises double-point double-throw switch SW1 and USB interface J2, the link of the other end of the 4th inductance L 4 and one end of the 8th electric capacity C8 passes through one end of double-point double-throw switch SW1 and the 4th resistance R4, the emitter of triode Q1 is connected with the link of the source electrode of the second PMOS M2, the link of the other end of the 4th inductance L 4 and one end of the 8th electric capacity C8, 3rd pin of double-point double-throw switch SW1 is connected with the 6th pin of double-point double-throw switch SW1, 2nd pin of double-point double-throw switch SW1, 5th pin of double-point double-throw switch SW1 and one end of the 4th resistance R4, the emitter of triode Q1 is connected with the link of the source electrode of the second PMOS M2, 1st pin of double-point double-throw switch SW1, 4th pin of double-point double-throw switch SW1 is connected with the 1st pin of USB interface J2, 4th pin of USB interface J2, 5th pin, 6th pin is connected with the 2nd pin of DC supply socket J1.Load supplying circuit can be accessed by the portable power source of being powered by USB port by USB interface J2.

Claims

1. a source of sound device, comprise source of sound device main body circuit, it is characterized in that described source of sound device also comprises power management chip control circuit, power supply input circuit, load supplying circuit, battery charger, voltage output feedack circuit, Current adjustment configuration circuit, lithium battery and battery electric quantity indicating circuit; Described power management chip control circuit is connected with the positive pole of described power supply input circuit, described Current adjustment configuration circuit, described lithium battery, described voltage output feedack circuit, described load supplying circuit, described battery charger and described battery electric quantity indicating circuit respectively; Described battery charger is connected with the positive pole of described lithium battery, and described load supplying circuit is connected with described source of sound device main body circuit, described power supply input circuit access external power source;

2. a kind of source of sound device according to claim 1, is characterized in that described power supply input circuit has first input end, the second input end, the first output terminal and the second output terminal; Described load supplying circuit has first input end, the second input end and output terminal; Described battery electric quantity indicating circuit has first input end, the second input end, the 3rd input end, four-input terminal and the 5th input end; Described Current adjustment configuration circuit has first input end, the second input end, the 3rd input end, four-input terminal and the 5th input end; The first input end of described power supply input circuit is for accessing external power source;

3. a kind of source of sound device according to claim 2, is characterized in that described power supply input circuit comprises the first 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, the first inductance, the second inductance, the first PMOS and DC supply socket, the second described inductance is common mode inductance, one end of the first described resistance, one end of the first described electric capacity, one end of the second described electric capacity is connected with one end of the first described inductance and its link is the first output terminal of described power supply input circuit, the other end of the first described resistance, the other end of the first described electric capacity and the equal ground connection of the other end of the second described electric capacity, the other end of the first described inductance is connected with the leakage level of the first described PMOS, the source electrode of the first described PMOS, one end of the second described resistance, one end of the 3rd described resistance, one end of the 4th described electric capacity, one end of the 5th described electric capacity is connected with the 2nd pin of the second described inductance, the grid of the first described PMOS is connected with the other end of the second described resistance and its link is the second input end of described power supply input circuit, the other end of the 3rd described resistance is connected with one end of the 3rd described electric capacity and its link is the second output terminal of described power supply input circuit, the equal ground connection of the other end of the other end of the 3rd described electric capacity, the other end of the 4th described electric capacity and the 5th described electric capacity, 1st pin of the second described inductance is connected with the 1st pin of described DC supply socket, 3rd pin ground connection of the second described inductance, 4th pin of the second described inductance is connected with the 3rd pin of described DC supply socket, and described DC supply socket is the first input end of described power supply input circuit.

4. a kind of source of sound device according to claim 3, is characterized in that described load supplying circuit comprises the 4th 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, the 4th inductance, triode and the second PMOS, one end of the 6th described electric capacity, one end of the 7th described electric capacity is connected with one end of the 4th described inductance and its link is the first input end of described load supplying circuit, the other end of the 6th described electric capacity, the other end of the 7th described electric capacity is connected with one end of the 3rd described inductance and its link is the second input end of described load supplying circuit, the other end of the 4th described inductance is connected with one end of the 8th described electric capacity, one end of the 4th described resistance, the emitter of described triode is connected with the source electrode of the second described PMOS, the link of the other end of the 4th described inductance and one end of the 8th described electric capacity and one end of the 4th described resistance, the emitter of described triode is connected with the link of the source electrode of the second described PMOS, the other end of the 8th described electric capacity and the equal ground connection of the other end of the 3rd described inductance, the other end of the 4th described resistance, one end of the 6th described resistance is connected with the base stage of described triode, the collector of described triode, one end of the 5th described resistance is connected with the grid of the second described PMOS, the other end of the 5th described resistance, the other end of the 6th described resistance and the equal ground connection in one end of the 9th described electric capacity, the other end of the 9th described electric capacity is connected with the drain electrode of the second described PMOS and its link is the output terminal of described load supplying circuit, the output terminal of described load supplying circuit is connected with described source of sound device main body circuit.

5. a kind of source of sound device according to claim 4, is characterized in that described load supplying circuit also comprises double-point double-throw switch and USB interface, the link of the other end of the 4th described inductance and one end of the 8th described electric capacity passes through one end of described double-point double-throw switch and the 4th described resistance, the emitter of described triode is connected with the link of the source electrode of the second described PMOS, the link of the other end of the 4th described inductance and one end of the 8th described electric capacity, 3rd pin of described double-point double-throw switch is connected with the 6th pin of described double-point double-throw switch, 2nd pin of described double-point double-throw switch, 5th pin of described double-point double-throw switch and one end of the 4th described resistance, the emitter of described triode is connected with the link of the source electrode of the second described PMOS, 1st pin of described double-point double-throw switch, 4th pin of described double-point double-throw switch is connected with the 1st pin of described USB interface, 4th pin of described USB interface, 5th pin, 6th pin is connected with the 2nd pin of described DC supply socket.

6. a kind of source of sound device according to claim 2, is characterized in that described voltage output feedack circuit comprises the 7th resistance, the 8th resistance and the tenth electric capacity; One end of the 7th described resistance is connected with one end of the tenth described electric capacity and its link is the input end of described voltage output feedack circuit, the other end of the 7th described resistance, one end of the 8th described resistance are connected with the other end of the tenth described electric capacity and its link is the output terminal of described voltage output feedack circuit, the other end ground connection of the 8th described resistance; Described battery charger comprises the 11 electric capacity, the 12 electric capacity and the 5th inductance, one end of the 11 described electric capacity is connected with one end of the 5th described inductance and its link is the output terminal of described battery charger, the other end of the 5th described inductance is connected with one end of the 12 described electric capacity and its link is the input end of described battery charger, the other end of the 11 described electric capacity and the equal ground connection of the other end of the 12 described electric capacity, the output terminal of described battery charger is connected with the positive pole of described lithium battery.

7. a kind of source of sound device according to claim 2, is characterized in that described battery electric quantity indicating circuit comprises the 9th resistance, the tenth resistance, the 11 resistance, the 12 resistance, the 13 resistance, the 14 resistance, the 15 resistance, the 16 resistance, the 17 resistance, the 13 electric capacity, the first light emitting diode, the second light emitting diode, the 3rd light emitting diode and the 4th light emitting diode, one end of the 13 described electric capacity is connected with one end of the 9th described resistance and its link is the first input end of described battery electric quantity indicating circuit, the other end of the 9th described resistance, one end of the tenth described resistance is connected with one end of the 13 described resistance and its link is the second input end of described battery electric quantity indicating circuit, the other end of the tenth described resistance, one end of the 11 described resistance is connected with one end of the 14 described resistance and its link is the 3rd input end of described battery electric quantity indicating circuit, the other end of the 11 described resistance, one end of the 12 described resistance is connected with one end of the 15 described resistance and its link is the four-input terminal of described battery electric quantity indicating circuit, the other end of the 12 described resistance, one end of the 16 described resistance is connected with one end of the 17 described resistance and its link is the 5th input end of described battery electric quantity indicating circuit, the other end of the 13 described resistance is connected with the positive pole of the first described light emitting diode, the other end of the 14 described resistance is connected with the positive pole of the second described light emitting diode, the other end of the 15 described resistance is connected with the positive pole of the 3rd described light emitting diode, the other end of the 16 described resistance is connected with the positive pole of the 4th described light emitting diode, the other end of the 13 described electric capacity, the negative pole of the first described 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 17 described resistance.

8. a kind of source of sound device according to claim 2, is characterized in that described Current adjustment configuration circuit comprises the 14 electric capacity, the 18 resistance, the 19 resistance, the 20 resistance, the 21 resistance and the 22 resistance, one end of the 18 described resistance is the first input end of described Current adjustment configuration circuit, one end of the 14 described electric capacity is connected with one end of the 19 described resistance and its link is the second input end of described Current adjustment configuration circuit, one end of the 20 described resistance is the 3rd input end of described Current adjustment configuration circuit, one end of the 21 described resistance is the four-input terminal of described Current adjustment configuration circuit, one end of the 22 described resistance is the 5th input end of described Current adjustment configuration circuit, the other end of the 18 described resistance, the other end of the 19 described resistance, the other end of the 20 described resistance, the other end of the 21 described resistance, the other end of the 22 described resistance and the equal ground connection of the other end of the 14 described electric capacity.

9. a kind of source of sound device according to claim 2, is characterized in that described source of sound device also comprises battery thermal-shutdown circuit; Described battery thermal-shutdown circuit has the first output terminal and the second output terminal, first output terminal of described battery thermal-shutdown circuit is connected with the 28th pin of described power management chip, and the second output terminal of described battery thermal-shutdown circuit is connected with the 21st pin of described power management chip; Described battery thermal-shutdown circuit comprises the 15 electric capacity, the 23 resistance, the 24 resistance and thermistor; One end of the 23 described resistance is connected with one end of the 15 described electric capacity and its link is the first output terminal of described battery thermal-shutdown circuit; the other end ground connection of the 15 described electric capacity; the other end of the 23 described resistance, one end of the 24 described resistance are connected with one end of described thermistor and its link is the second output terminal, the other end of the 24 described resistance and the equal ground connection of the other end of described thermistor of described battery thermal-shutdown circuit.

10. a kind of source of sound device according to claim 2, it is characterized in that described source of sound device also comprises battery overcurrent-overvoltage protecting circuit, described battery overcurrent-overvoltage protecting circuit comprise the 25 resistance, the second chip that the first chip that battery protection chip that the 26 resistance, the 27 resistance, the 16 electric capacity, model are DW01, model are 8205A and model are 8205A, one end of the 25 described resistance is connected with the positive pole of described lithium battery, the other end of the 25 described resistance, one end of the 16 described electric capacity is connected with the 5th pin of described battery protection chip, the other end of the 16 described electric capacity, 6th pin of described battery protection chip, 2nd pin of the first described chip, 3rd pin of the first described chip, 2nd pin of the second described chip, 3rd pin of the second described chip, one end of the 26 described resistance is connected with the negative pole of described lithium battery, the 3rd pin of described battery protection chip, 5th pin of the first described chip is connected with the 5th pin of the second described chip, the 1st pin of described battery protection chip, 4th pin of the first described chip is connected with the 4th pin of the second described chip, the 1st pin of the first described chip, 8th pin of the first described chip, 1st pin of the second described chip is connected with the 8th pin of the second described chip, and the 2nd pin of described battery protection chip is connected with one end of the 27 described resistance, the other end of the 26 described resistance, the other end of the 27 described resistance, 6th pin of the first described chip, 7th pin of the first described chip, 6th pin of the second described chip and the equal ground connection of the 7th pin of the second described chip.