CN104658592A - Large-power audio playing circuit and audio playing device - Google Patents
Large-power audio playing circuit and audio playing device Download PDFInfo
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- CN104658592A CN104658592A CN201510067160.2A CN201510067160A CN104658592A CN 104658592 A CN104658592 A CN 104658592A CN 201510067160 A CN201510067160 A CN 201510067160A CN 104658592 A CN104658592 A CN 104658592A
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Abstract
The invention provides a large-power audio playing circuit and an audio playing device, relating to the technical field of electric charging. The audio playing device comprises a power supply input interface module, a switching type boosting module, a switching type charging module, a power accumulation module and a power amplifier module, wherein the power supply input interface module is used for switching in first direct current input by an external power supply; the switching type boosting module is used for receiving the first direct current, and boosting the first direct current to output second direct current; the switching type charging module is used for receiving the second direct current and outputting charging current according to the second direct current; the power accumulation module is used for receiving the charging current, charging by using the charging current, and outputting power supply current when a power accumulation amount reaches a threshold value; and the power amplifier module is used for receiving the power supply current and carrying out audio playing by using the power supply current. By virtue of the large-power audio playing circuit, the charging requirements of large-power sound equipment can be met very well by small current provided by the external power supply; and the large-power sound equipment can be used for carrying out audio playing when being charged by using small current.
Description
Technical field
The invention belongs to electric charging technique field, particularly relate to a kind of high-power audio playing circuit and audio playing apparatus.
Background technology
Along with the development of science and technology, audio-frequence player device becomes the necessity of the cultural life of people gradually.At present, in some audio-frequence player devices, power amplifier module, audio decoder module and power module is all integrated with.These audio-frequence player devices are generally all provided with power input interface, can be charge in batteries in power module by this power input interface, and be that audio decoder module and power amplifier module are powered by accumulator, form an independently audio-frequence player device.
At present, the electric current that some audio-frequence player devices on market mainly adopt the USB interface on computer to export is charge in batteries, and USB interface can only provide the direct current of 5V voltage, the charge requirement of the audio-frequence player device being built-in with single-unit accumulator can only be met, the charge requirement of the high-power audio playback equipment being built-in with more piece accumulator cannot be met, charging limit, high-power audio playing device limit more can not be made to carry out audio frequency broadcasting.
Summary of the invention
The object of the present invention is to provide a kind of high-power audio playing circuit and audio playing apparatus, the direct current being intended to solve 5V voltage in prior art cannot meet the charge requirement of high-power audio playback equipment, and charging limit, high-power audio playing device limit more can not be made to carry out the problem of audio frequency broadcasting.
The technical solution adopted for the present invention to solve the technical problems is, constructs a kind of high-power audio playing circuit, comprising:
Power input interface module, for accessing the first direct current of external power source input;
Switching mode boost module, for receiving described first direct current, and exports the second direct current after boosting to described first direct current;
Switching mode charging module, for receiving described second direct current, and exports charging current according to described second direct current;
Power storage module, for receiving described charging current, utilizes described charging current to charge, and exports supply current when charge capacity reaches threshold value;
Power amplifier module, for receiving described supply current, and utilizes described supply current to carry out audio frequency broadcasting.
In high-power audio playing circuit of the present invention, described power storage module is the battery pack be made up of two to three joint lithium batteries, the positive pole of described battery pack is connected to the output terminal of described switching mode charging module and the input end of described power amplifier module, the minus earth of described battery pack.
In high-power audio playing circuit of the present invention, also comprise the charging current adjustment module be connected with described switching mode charging module, the charging current of described charging current adjustment module for regulating described switching mode charging module to export according to the charge capacity of described second direct current and described power storage module.
In high-power audio playing circuit of the present invention, described charging current adjustment module comprises a software interface, store the software program for the charging current regulating described switching mode charging module to export according to the charge capacity in described second direct current and described power storage module in described software interface, the software interface of described charging current adjustment module is connected with described switching mode charging module.
In high-power audio playing circuit of the present invention, also comprise the charging current adjustment module be connected between described switching mode charging module and described power storage module, the charging current of described charging current adjustment module for regulating described switching mode charging module to export according to the charge capacity of described second direct current and described power storage module.
In high-power audio playing circuit of the present invention, described charging current adjustment module comprises current sense resistor, the first end of described current sense resistor is connected to one end of described switching mode charging module, and the second end of described current sense resistor is connected to the positive pole of battery pack in the output terminal of described switching mode charging module and described power storage module.
In high-power audio playing circuit of the present invention, described switching mode charging module is made up of charging chip, state-of-charge indicator, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the 6th resistance, thermistor, the 4th inductance and voltage stabilizing diode;
Described charging chip comprises voltage input end, voltage output end, compensation end, Thermal feedback end, current sense resistor sampling end, charging end, charged state indication end and earth terminal; the voltage input end of described charging chip and the first end of described 5th electric capacity connect the output terminal that the input end forming described switching mode charging module is connected to described switching mode boost module altogether, second end ground connection of described 5th electric capacity, the compensation end of described charging chip is by the 6th electric capacity and the 6th resistance eutral grounding, the voltage output end of described charging chip is connected to the current sense resistor sampling end of described charging chip by the 4th inductance, and the common contact of the current sense resistor sampling end of described 4th inductance and described charging chip is connected to the first end of described current sense resistor, the voltage output end of described switching mode charging module is also connected to the negative electrode of described voltage stabilizing diode, the plus earth of described voltage stabilizing diode, the charging end of described switching mode charging module is by described 7th capacity earth, and the output terminal that the common contact of the charging end of described switching mode charging module and described 7th electric capacity forms described switching mode charging module is connected to the second end of described current sense resistor, the positive pole of battery pack and the input end of described power amplifier module in described power storage module, the charged state indication end of described charging chip is connected to described state-of-charge indicator, the Thermal feedback end of described switching mode charging module is connected to described thermistor, the earth terminal ground connection of described charging chip.
In high-power audio playing circuit of the present invention, described power input interface module is made up of USB interface, the first inductance, the second inductance and the first electric capacity; The power supply terminal of described USB interface is connected to one end of described first inductance, the other end of described first inductance is by described first capacity earth, and the output terminal that the common contact of described first inductance and described first electric capacity forms described power input interface module is connected to the input end of described switching mode boost module, the ground terminal of described USB interface is by the second inductance ground connection.
In high-power audio playing circuit of the present invention, described switching mode boost module is made up of voltage conversion chip, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 3rd inductance, the second electric capacity, the 3rd electric capacity, the 4th electric capacity and the first diode;
Described voltage conversion chip comprises voltage input end, voltage output end, frequency of operation selecting side, Enable Pin, feedback end, electric capacity terminals, compensates end and earth terminal, the voltage input end of described voltage conversion chip, frequency of operation selecting side, the first end of described first resistance and the first end of described 3rd inductance connect the output terminal that the input end forming described switching mode boost module is connected to described power input interface module jointly altogether, second end of described first resistance is connected to the Enable Pin of described voltage conversion chip, and also by the second resistance eutral grounding, second end of described 3rd inductance is connected to the voltage output end of described voltage conversion chip and the anode of described first diode, the negative electrode of described first diode is respectively by described 4th capacity earth, by described 4th resistance and described 5th resistance eutral grounding, and the output terminal that the common contact of described first diode and described 4th resistance and described 4th electric capacity forms described switching mode boost module is connected to the input end of described switching mode charging module, the feedback end of described voltage conversion chip is connected to the common contact of described 4th resistance and described 5th resistance, the compensation end of described voltage conversion chip is by the 3rd electric capacity and the 3rd resistance eutral grounding, the electric capacity terminals of described voltage conversion chip are by described second capacity earth, the earth terminal ground connection of described voltage conversion chip.
The present invention also provides a kind of audio playing apparatus, comprises housing, and the inside of the housing of described audio playing apparatus comprises above-mentioned high-power audio playing circuit.
Implement high-power audio playing circuit provided by the invention and audio playing apparatus has following beneficial effect:
The high power acoustics control circuit of the present invention's design, first direct current inputted by external power source by switching mode boost module of employing carries out boost conversion and exports the second direct current, exports charging current by switching mode charging module according to the second direct current; Utilize charging current to charge by battery module, and export supply current when charge capacity reaches threshold value; This supply current is utilized to carry out audio frequency broadcasting by power amplifier module, thus the small area analysis making external power source provide also is well positioned to meet the charge requirement of high-power audio equipment, and make high-power audio equipment that small area analysis also can be utilized to charge to carry out audio frequency broadcasting.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the high-power audio playing circuit that the embodiment of the present invention 1 provides;
Fig. 2 is the structured flowchart of the high-power audio playing circuit that the embodiment of the present invention 2 provides;
Fig. 3 is the structured flowchart of the high-power audio playing circuit that the embodiment of the present invention 3 provides;
Fig. 4 is power storage module and the schematic diagram of annexation between switching mode charging module, charging current adjustment module and power amplifier module in embodiment 3;
Fig. 5 is the specific implementation circuit diagram of the high-power audio playing circuit that the embodiment of the present invention 3 provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 is the structured flowchart of the high-power audio playing circuit that the embodiment of the present invention provides.Shown in Figure 1, the high-power audio playing circuit that the embodiment of the present invention provides comprises: power input interface module 1, for accessing the first direct current of external power source input; Switching mode boost module 2, for receiving the first direct current, and exports the second direct current after boosting to the first direct current; Switching mode charging module 3, for receiving the second direct current, and exports charging current according to the second direct current; Power storage module 4, for receiving charging current, utilizes charging current to charge, and exports supply current when charge capacity reaches threshold value; Power amplifier module 5, for receiving supply current, and utilizes supply current to carry out audio frequency broadcasting.
The direct current of the first direct current can be voltage be 5V in the present embodiment, it can be accessed by the power supply interface of data line from external unit by power input interface module, such as: can access the first direct current by USB data line from the USB interface of computing machine; The direct current of the second direct current can be voltage be 9V or 14V; Charging current is after the drainage process of switching mode charging module 3, and voltage is slightly smaller than the second direct current, and certainly, switching mode charging module 3 also can not do any process to the second direct current, directly exports the second direct current as charging current.
In the present embodiment, power storage module 4 is the battery pack BATT1 be made up of two to three joint lithium batteries, and the positive pole of battery pack BATT1 is connected to the output terminal of switching mode charging module 3 and the input end of power amplifier module 5, the minus earth of battery pack BATT1.
The high-power audio playing circuit designed in the present embodiment, power storage module 4 can be made to carry out electric power storage in the mode of cistern, and automatically outwards export supply current when charge capacity reaches threshold value, thus the small area analysis making external power source provide also is well positioned to meet the charge requirement of high-power audio equipment, and make high-power audio equipment that small area analysis also can be utilized to charge to carry out audio frequency broadcasting.
Fig. 2 is the structured flowchart of the high-power audio playing circuit that the embodiment of the present invention 2 provides.Shown in Figure 2, the charging current adjustment module 6 be connected with switching mode charging module 3 is also comprised, the charging current that charging current adjustment module 6 exports for the charge capacity by-pass cock type charging module 3 in the second direct current of exporting according to switching mode boost module 2 and power storage module 4 relative to the high-power audio playing circuit in embodiment 1 the present embodiment.
In the present embodiment, charging current adjustment module 6 comprises a software interface, and the software program stored in software interface for the charging current exported according to the charge capacity by-pass cock type charging module 3 in the second direct current and power storage module 4, the software interface of charging current adjustment module 6 is connected with the controlled end of switching mode charging module 3.
Here it should be noted that, switching mode charging module 3 in the present embodiment charging process in can automatically detector switch type boost module 2 input the second galvanic size and power storage module 4 in charge capacity, and utilize the software program that stores in software interface in charging current adjustment module 6 automatically to regulate the size of charging current according to above-mentioned the second direct current of detecting and charge capacity, make this charging current improve charge efficiency further while the charge requirement meeting power storage module 4 and power amplifier module 5.
Fig. 3 is the structured flowchart of the high-power audio playing circuit that the embodiment of the present invention 3 provides.Shown in Figure 3, the charging current adjustment module 6 be connected between switching mode charging module 3 and power storage module 4 is also comprised, the charging current of charging current adjustment module 6 for exporting according to the charge capacity by-pass cock type charging module 3 of the second direct current and power storage module 4 relative to the high-power audio playing circuit in embodiment 1 the present embodiment.
In the present embodiment, this charging current adjustment module 6 comprises current sense resistor Rsense, the first end of current sense resistor Rsense is connected to one end of switching mode charging module 3, and second end of current sense resistor Rsense is connected to the positive pole of battery pack in the output terminal of switching mode charging module 3 and power storage module 4.
The current sense resistor Rsense adopted in the present embodiment is as charging current adjustment module 6, the charging current that can export according to the charge capacity by-pass cock type charging module 3 in the second direct current and power storage module 4 equally, makes this charging current further increase charge efficiency while the charge requirement meeting power storage module 4 and power amplifier module 5.
Fig. 4 is power storage module and the schematic diagram of annexation between switching mode charging module, charging current adjustment module and power amplifier module in embodiment 3.
Shown in Figure 4, switching mode charging module 3 is made up of charging chip U2, state-of-charge indicator CHRG1, the 5th electric capacity C5, the 6th electric capacity C6, the 7th electric capacity C7, the 6th resistance R6, thermistor R9, the 4th inductance L 4 and voltage stabilizing diode D2 in the present embodiment; Charging chip U2 comprises voltage input end Vcc, voltage output end SW2, compensates end COMP2, Thermal feedback end NTC, current sense resistor sampling end SENSE, charging end BAT, charged state indication end CHRG and earth terminal GND2; the voltage input end of charging chip U2 and the first end of the 5th electric capacity C5 connect the output terminal that the input end forming switching mode charging module 3 is connected to switching mode boost module 2 altogether, the second end ground connection of the 5th electric capacity C5, the compensation end COMP2 of charging chip U2 is by the 6th electric capacity C6 and the 6th resistance R6 ground connection, the voltage output end Vcc of charging chip U2 is connected to the current sense resistor sampling end SENSE of charging chip U2 by the 4th inductance L 4, and the 4th inductance L 4 and the common contact of the current sense resistor sampling end SENSE of charging chip U2 are connected to the first end of current sense resistor Rsense, the voltage output end SW2 of switching mode charging module 3 is also connected to the negative electrode of voltage stabilizing diode D2, the plus earth of voltage stabilizing diode D2, the charging end BAT of switching mode charging module 3 is by the 7th electric capacity C7 ground connection, and the output terminal that the common contact of the charging end BAT of switching mode charging module 3 and the 7th electric capacity C7 forms switching mode charging module 3 is connected to second end of current sense resistor Rsense, the positive pole of battery pack BATT1 and the input end of power amplifier module 5 in power storage module 4, the charged state indication end CHRG of charging chip U2 is connected to state-of-charge indicator CHRG1, the Thermal feedback end NTC of switching mode charging module 3 is connected to thermistor R9, the earth terminal GND2 ground connection of charging chip U2.When specific implementation, charging chip U2 can be but be not limited to EUP8209 chip.
Fig. 5 is the specific implementation circuit diagram of the high-power audio playing circuit that the embodiment of the present invention 3 provides.
Shown in Figure 5, when specific implementation, current sense resistor also can be made up of the 7th resistance R7 and the 8th resistance R8, now, the positive pole of battery pack BATT1 in the output terminal of switching mode charging module 3 and power storage module 4 is connected to after second end of the second end and the 8th resistance R8 that are connected to switching mode charging module the 3, seven resistance R7 after the first end of the 7th resistance R7 and the first end of the 8th resistance R8 connect altogether connects altogether.
Further, shown in Figure 5, when specific implementation, the power input interface module 1 in the present embodiment can be made up of USB interface, the first inductance L 1, second inductance L 2 and the first electric capacity C1; The power supply terminal of USB interface is connected to one end of the first inductance L 1, the other end of the first inductance L 1 is by the first electric capacity C1 ground connection, and the output terminal that the common contact of the first inductance L 1 and the first electric capacity C1 forms power input interface module 1 is connected to the input end of switching mode boost module 2, the ground terminal of USB interface is by the second inductance L 2 ground connection.When needs charge, we can adopt USB line to be coupled together by the power supply interface of the USB interface in power input interface module 1 and external unit, to access the first direct current that external unit provides, and the filtering circuit be made up of the first inductance, the second inductance and the first electric capacity exports switching mode boost module 2 to after its filtering.
Further, shown in Figure 5, when specific implementation, the switching mode boost module 2 in the present embodiment can be made up of voltage conversion chip U1, the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 3rd inductance L 3, second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4 and the first diode D1, voltage conversion chip U1 comprises voltage input end IN, voltage output end SW2, frequency of operation selecting side FSEL, Enable Pin EN, feedback end FB, electric capacity terminals SS, compensates end COMP1 and earth terminal GND, the voltage input end IN of voltage conversion chip U1, frequency of operation selecting side FSEL, the first end of the first resistance R1 and the first end of the 3rd inductance L 3 connect the output terminal that the input end forming switching mode boost module 2 is connected to power input interface module jointly altogether, second end of the first resistance R1 is connected to the Enable Pin EN of voltage conversion chip U1, and also by the second resistance R2 ground connection, second end of the 3rd inductance L 3 is connected to the voltage output end SW1 of voltage conversion chip U1 and the anode of the first diode D1, the negative electrode of the first diode D1 is respectively by the 4th electric capacity C4 ground connection, by the 4th resistance R4 and the 5th resistance R5 ground connection, and the output terminal that the common contact of the first diode D1 and the 4th resistance R4 and the 4th electric capacity C4 forms switching mode boost module 2 is connected to the input end of switching mode charging module 3, the feedback end FB of voltage conversion chip U1 is connected to the common contact of the 4th resistance R4 and the 5th resistance R5, the compensation end COMP1 of voltage conversion chip U1 is by the 3rd electric capacity C3 and the 3rd resistance R3 ground connection, the electric capacity terminals SS of voltage conversion chip U1 is by the second electric capacity C2 ground connection, the earth terminal GND1 ground connection of voltage conversion chip U1.When specific implementation, this voltage conversion chip exports the second direct current to switching mode charging module 3 after can carrying out boosting process to the first direct current, and the charging current that further guarantee switching mode charging module exports can meet the charge requirement of more piece accumulator.In the present embodiment, this voltage conversion chip U1 can be but be not limited to MP1542 chip.
To sum up, high-power audio playing circuit provided by the invention, power storage module 4 can be made to carry out electric power storage in the mode of cistern, and automatically outwards export supply current when charge capacity reaches threshold value, thus the small area analysis making external power source provide also is well positioned to meet the charge requirement of high-power audio equipment, and make high-power audio equipment that small area analysis can be utilized to charge to carry out audio frequency broadcasting.
Another object of the embodiment of the present invention is also to provide a kind of audio playing apparatus.
The audio playing apparatus that the embodiment of the present invention provides comprises housing, and the inside of housing comprises any one audio playing circuit in above-described embodiment 1-3.The audio playing apparatus that the present embodiment provides is high-power audio playing device, and its small area analysis that external power source can be utilized to provide by above-mentioned audio playing circuit charges and carries out audio frequency broadcasting.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a high-power audio playing circuit, is characterized in that, comprising:
Power input interface module, for accessing the first direct current of external power source input;
Switching mode boost module, for receiving described first direct current, and exports the second direct current after boosting to described first direct current;
Switching mode charging module, for receiving described second direct current, and exports charging current according to described second direct current;
Power storage module, for receiving described charging current, utilizes described charging current to charge, and exports supply current when charge capacity reaches threshold value;
Power amplifier module, for receiving described supply current, and utilizes described supply current to carry out audio frequency broadcasting.
2. high-power audio playing circuit as claimed in claim 1, it is characterized in that, described power storage module is the battery pack be made up of two to three joint lithium batteries, the positive pole of described battery pack is connected to the output terminal of described switching mode charging module and the input end of described power amplifier module, the minus earth of described battery pack.
3. high-power audio playing circuit as claimed in claim 2, it is characterized in that, also comprise the charging current adjustment module be connected with described switching mode charging module, the charging current of described charging current adjustment module for regulating described switching mode charging module to export according to the charge capacity of described second direct current and described power storage module.
4. high-power audio playing circuit as claimed in claim 3, it is characterized in that, described charging current adjustment module comprises a software interface, store the software program for the charging current regulating described switching mode charging module to export according to the charge capacity in described second direct current and described power storage module in described software interface, the software interface of described charging current adjustment module is connected with described switching mode charging module.
5. high-power audio playing circuit as claimed in claim 2, it is characterized in that, also comprise the charging current adjustment module be connected between described switching mode charging module and described power storage module, the charging current of described charging current adjustment module for regulating described switching mode charging module to export according to the charge capacity of described second direct current and described power storage module.
6. high-power audio playing circuit as claimed in claim 5, it is characterized in that, described charging current adjustment module comprises current sense resistor, the first end of described current sense resistor is connected to one end of described switching mode charging module, and the second end of described current sense resistor is connected to the positive pole of battery pack in the output terminal of described switching mode charging module and described power storage module.
7. high-power audio playing circuit as claimed in claim 6, it is characterized in that, described switching mode charging module is made up of charging chip, state-of-charge indicator, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the 6th resistance, thermistor, the 4th inductance and voltage stabilizing diode;
Described charging chip comprises voltage input end, voltage output end, compensation end, Thermal feedback end, current sense resistor sampling end, charging end, charged state indication end and earth terminal; the voltage input end of described charging chip and the first end of described 5th electric capacity connect the output terminal that the input end forming described switching mode charging module is connected to described switching mode boost module altogether, second end ground connection of described 5th electric capacity, the compensation end of described charging chip is by the 6th electric capacity and the 6th resistance eutral grounding, the voltage output end of described charging chip is connected to the current sense resistor sampling end of described charging chip by the 4th inductance, and the common contact of the current sense resistor sampling end of described 4th inductance and described charging chip is connected to the first end of described current sense resistor, the voltage output end of described switching mode charging module is also connected to the negative electrode of described voltage stabilizing diode, the plus earth of described voltage stabilizing diode, the charging end of described switching mode charging module is by described 7th capacity earth, and the output terminal that the common contact of the charging end of described switching mode charging module and described 7th electric capacity forms described switching mode charging module is connected to the second end of described current sense resistor, the positive pole of battery pack and the input end of described power amplifier module in described power storage module, the charged state indication end of described charging chip is connected to described state-of-charge indicator, the Thermal feedback end of described switching mode charging module is connected to described thermistor, the earth terminal ground connection of described charging chip.
8. the high-power audio playing circuit as described in claim 4 or 7, is characterized in that, described power input interface module is made up of USB interface, the first inductance, the second inductance and the first electric capacity; The power supply terminal of described USB interface is connected to one end of described first inductance, the other end of described first inductance is by described first capacity earth, and the output terminal that the common contact of described first inductance and described first electric capacity forms described power input interface module is connected to the input end of described switching mode boost module, the ground terminal of described USB interface is by the second inductance ground connection.
9. high-power audio playing circuit as claimed in claim 8, it is characterized in that, described switching mode boost module is made up of voltage conversion chip, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 3rd inductance, the second electric capacity, the 3rd electric capacity, the 4th electric capacity and the first diode;
Described voltage conversion chip comprises voltage input end, voltage output end, frequency of operation selecting side, Enable Pin, feedback end, electric capacity terminals, compensates end and earth terminal, the voltage input end of described voltage conversion chip, frequency of operation selecting side, the first end of described first resistance and the first end of described 3rd inductance connect the output terminal that the input end forming described switching mode boost module is connected to described power input interface module jointly altogether, second end of described first resistance is connected to the Enable Pin of described voltage conversion chip, and also by the second resistance eutral grounding, second end of described 3rd inductance is connected to the voltage output end of described voltage conversion chip and the anode of described first diode, the negative electrode of described first diode is respectively by described 4th capacity earth, by described 4th resistance and described 5th resistance eutral grounding, and the output terminal that the common contact of described first diode and described 4th resistance and described 4th electric capacity forms described switching mode boost module is connected to the input end of described switching mode charging module, the feedback end of described voltage conversion chip is connected to the common contact of described 4th resistance and described 5th resistance, the compensation end of described voltage conversion chip is by the 3rd electric capacity and the 3rd resistance eutral grounding, the electric capacity terminals of described voltage conversion chip are by described second capacity earth, the earth terminal ground connection of described voltage conversion chip.
10. an audio playing apparatus, comprises housing, it is characterized in that, the inside of described housing comprises the high-power audio playing circuit as described in any one of claim 1-9.
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| CN201510067160.2A CN104658592A (en) | 2015-02-09 | 2015-02-09 | Large-power audio playing circuit and audio playing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107666159A (en) * | 2016-07-28 | 2018-02-06 | 深圳市赛音电子有限公司 | A kind of supply unit |
| CN110649311A (en) * | 2019-09-04 | 2020-01-03 | 上海智汇电器有限公司 | Battery pack |
| WO2021044081A1 (en) * | 2019-09-04 | 2021-03-11 | Genelec Oy | Audio amplifier for use with a limited power source |
| CN116345621A (en) * | 2023-03-23 | 2023-06-27 | 深圳唯乐高科技有限公司 | Electric energy conversion device and electric two-wheeled vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694506A (en) * | 2012-06-06 | 2012-09-26 | 国光电器股份有限公司 | Audio-frequency amplifier system powered based on power supply of computer USB (Universal Serial Bus) power source and integration of USB audio card |
| US20130238819A1 (en) * | 2012-03-06 | 2013-09-12 | Miroslav Oljaca | USB Host Determination of whether a USB Device Provides Power via a USB Coupling |
| CN203407010U (en) * | 2013-08-19 | 2014-01-22 | 深圳市魅动音响有限公司 | Audio playing circuit and audio playing device |
-
2015
- 2015-02-09 CN CN201510067160.2A patent/CN104658592A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130238819A1 (en) * | 2012-03-06 | 2013-09-12 | Miroslav Oljaca | USB Host Determination of whether a USB Device Provides Power via a USB Coupling |
| CN102694506A (en) * | 2012-06-06 | 2012-09-26 | 国光电器股份有限公司 | Audio-frequency amplifier system powered based on power supply of computer USB (Universal Serial Bus) power source and integration of USB audio card |
| CN203407010U (en) * | 2013-08-19 | 2014-01-22 | 深圳市魅动音响有限公司 | Audio playing circuit and audio playing device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107666159A (en) * | 2016-07-28 | 2018-02-06 | 深圳市赛音电子有限公司 | A kind of supply unit |
| CN107666159B (en) * | 2016-07-28 | 2023-12-26 | 深圳市赛音电子有限公司 | Power supply device |
| CN110649311A (en) * | 2019-09-04 | 2020-01-03 | 上海智汇电器有限公司 | Battery pack |
| WO2021044081A1 (en) * | 2019-09-04 | 2021-03-11 | Genelec Oy | Audio amplifier for use with a limited power source |
| US11923810B2 (en) | 2019-09-04 | 2024-03-05 | Genelec Oy | Audio amplifier for use with a limited power source |
| CN116345621A (en) * | 2023-03-23 | 2023-06-27 | 深圳唯乐高科技有限公司 | Electric energy conversion device and electric two-wheeled vehicle |
| CN116345621B (en) * | 2023-03-23 | 2024-01-26 | 深圳唯乐高科技有限公司 | Electric energy conversion device and electric two-wheeled vehicle |
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