Super capacitor sound box device and control method

Abstract

The invention provides a super capacitor sound box device and a control method. The device comprises a super capacitor module, a charging management module, a DC voltage stabilization module, a power amplification module, an audio decoding module and a loudspeaker. When the charging management module detects connection of an external DC power supply, the super capacitor module is controlled to stop providing power for the DC voltage stabilization module, and the external DC power supply is controlled to charge the super capacitor module. When connection of no external DC power supply is detected, the super capacitor module is controlled to provide power for the DC voltage stabilization module. The DC voltage stabilization module converts the external DC power supply into first voltage and second voltage, the first voltage provides power for the power amplification module, and the second voltage provides power for the audio decoding module. The audio decoding module decodes inputted audio and sends the audio to the power amplification module. The power amplification module drives the loudspeaker to play a sound. Compared with a lithium battery, the super capacitor has the advantages of being fast in charging and environmental friendly. In the case of full charging, use can be lasted for several hours, and the sound box can be truly portable.

Description

technical field

[0001] The invention relates to the technical field of audio power supply, in particular to a super capacitor audio device and a control method. Background technique

[0002] With the rise of portable audio, portability is becoming a trend in the development of electronic audio, and batteries have become a key technology restricting the development of portable audio.

[0003] At present, the power supply of portable audio devices basically adopts lithium batteries. The advantages of lightness and high energy density of lithium batteries have promoted the rise of portable audio.

[0004] However, it is well known that the safety of lithium batteries is poor, there is a risk of explosion, and the charging time is long, at least 3 hours for a full charge. In addition, the life of lithium batteries is also short. In theory, the number of times of deep charge and discharge is less than 1,000 times, but in practical applications, it is about 200 to 500 times. Acc...

Examples

Embodiment 1

[0063] see figure 1 , which is a schematic diagram of Embodiment 1 of the supercapacitor audio device provided by the present invention.

[0064] The supercapacitor audio device provided in this embodiment includes: a supercapacitor module 100, a charge management module 200, a DC voltage regulator module 300, a power amplifier module 400, an audio decoding module 500, and a speaker 600;

[0065] The charging management module 200 is configured to control the supercapacitor module 100 to stop supplying power to the DC voltage stabilizing module 300 when an external DC power supply is detected, and at the same time control the external DC power supply to the supercapacitor module 100 charging; it is also used to control the supercapacitor module 100 to supply power to the DC voltage stabilizing module 300 when it is detected that no external DC power supply is connected;

[0066] It should be noted that the voltage level of the external DC power supply can be selected accordin...

Embodiment 2

[0081] see figure 2 , which is a schematic diagram of Embodiment 2 of the super capacitor audio device provided by the present invention.

[0082] The supercapacitor audio device provided in this embodiment further includes: a first voltage detection module 700 and a first charge-discharge equalization control module 800;

[0083] The first voltage detection module 700 is configured to detect the voltage at both ends of each supercapacitor, and send the detected voltage to the first charge-discharge balance control module 800;

[0084] The first charge-discharge balance control module 800 is configured to stop charging the supercapacitor when the voltage across the supercapacitor exceeds a first reference voltage value; the first reference voltage value is obtained by sampling the supercapacitor in advance .

[0085] It should be noted that the first reference voltage value is obtained by performing voltage sampling on the supercapacitor.

[0086] To sample the reference v...

Embodiment 3

[0090] see image 3 , which is a schematic diagram of Embodiment 3 of the supercapacitor audio device provided by the present invention.

[0091] The supercapacitor audio device provided in this embodiment further includes: a second voltage detection module and a second charge-discharge equalization control module;

[0092] The second voltage detection module is used to detect the sum of the voltages of all supercapacitors in the supercapacitor module, and send the detected voltage sum to the second charge-discharge equalization control module;

[0093] The second charge-discharge balance control module is configured to cut off the charging path between the charge management module and the supercapacitor module when judging that the sum of the voltages exceeds a first predetermined voltage value Vref1.

[0094] The following example introduces a specific implementation method, such as image 3 shown.

[0095] The second charge-discharge balance control module includes: a fi...

technical field

[0001] The invention relates to the technical field of audio power supply, in particular to a super capacitor audio device and a control method. Background technique

[0002] With the rise of portable audio, portability is becoming a trend in the development of electronic audio, and batteries have become a key technology restricting the development of portable audio.

[0003] At present, the power supply of portable audio devices basically adopts lithium batteries. The advantages of lightness and high energy density of lithium batteries have promoted the rise of portable audio.

[0004] However, it is well known that the safety of lithium batteries is poor, there is a risk of explosion, and the charging time is long, at least 3 hours for a full charge. In addition, the life of lithium batteries is also short. In theory, the number of times of deep charge and discharge is less than 1,000 times, but in practical applications, it is about 200 to 500 times. Acc...

Examples

Embodiment 1

[0063] see figure 1 , which is a schematic diagram of Embodiment 1 of the supercapacitor audio device provided by the present invention.

[0064] The supercapacitor audio device provided in this embodiment includes: a supercapacitor module 100, a charge management module 200, a DC voltage regulator module 300, a power amplifier module 400, an audio decoding module 500, and a speaker 600;

[0065] The charging management module 200 is configured to control the supercapacitor module 100 to stop supplying power to the DC voltage stabilizing module 300 when an external DC power supply is detected, and at the same time control the external DC power supply to the supercapacitor module 100 charging; it is also used to control the supercapacitor module 100 to supply power to the DC voltage stabilizing module 300 when it is detected that no external DC power supply is connected;

[0066] It should be noted that the voltage level of the external DC power supply can be selected accordin...

Embodiment 2

[0081] see figure 2 , which is a schematic diagram of Embodiment 2 of the super capacitor audio device provided by the present invention.

[0082] The supercapacitor audio device provided in this embodiment further includes: a first voltage detection module 700 and a first charge-discharge equalization control module 800;

[0083] The first voltage detection module 700 is configured to detect the voltage at both ends of each supercapacitor, and send the detected voltage to the first charge-discharge balance control module 800;

[0084] The first charge-discharge balance control module 800 is configured to stop charging the supercapacitor when the voltage across the supercapacitor exceeds a first reference voltage value; the first reference voltage value is obtained by sampling the supercapacitor in advance .

[0085] It should be noted that the first reference voltage value is obtained by performing voltage sampling on the supercapacitor.

[0086] To sample the reference v...

Embodiment 3

[0090] see image 3 , which is a schematic diagram of Embodiment 3 of the supercapacitor audio device provided by the present invention.

[0091] The supercapacitor audio device provided in this embodiment further includes: a second voltage detection module and a second charge-discharge equalization control module;

[0092] The second voltage detection module is used to detect the sum of the voltages of all supercapacitors in the supercapacitor module, and send the detected voltage sum to the second charge-discharge equalization control module;

[0093] The second charge-discharge balance control module is configured to cut off the charging path between the charge management module and the supercapacitor module when judging that the sum of the voltages exceeds a first predetermined voltage value Vref1.

[0094] The following example introduces a specific implementation method, such as image 3 shown.

[0095] The second charge-discharge balance control module includes: a fi...

Images