Power supply voltage control method for audio power amplifier

Abstract

The invention belongs to the field of audio power amplifiers, particularly relates to a power supply voltage control method for an audio power amplifier, and aims to solve the problem that the power supply voltage of the audio power amplifier is inconvenient to control in the prior art. The control system comprises a voltage detection module, a voltage extraction module, a voltage identification module, a voltage comparison module, a judgment module, a voltage regulation module, a feedback detection module, an abnormity early warning module, a difference degree calculation module and an abnormity grade division module. S2, the power supply voltage is detected through a voltage detection module, detected data are extracted through a voltage extraction module, and the data are recognized and extracted through a voltage recognition module, the power supply voltage of the audio power amplifier can be conveniently controlled, it is guaranteed that the voltage is stable, early warning can be conducted when abnormity occurs, and the reliability of the audio power amplifier is improved. And the early warning condition can be graded, so that the severity of the abnormity can be known conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of audio power amplifiers, and particularly relates to a method for controlling the supply voltage of an audio power amplifier. Background Art

[0002] The full name of an audio power amplifier is an audio power amplifier, which is a power amplifier device used to drive a speaker to emit sound so as to reproduce sound. It is used in all electronic products that emit sound. In fact, an audio power amplifier amplifies a relatively small audio signal to increase its power and then outputs it. The pre-amplification mainly completes the amplification of small signals. A non-inverting amplifier circuit is used to amplify the voltage of the input small audio signal to obtain the input required by the subsequent stage. The subsequent stage mainly amplifies the power of the audio so that it can drive a resistor to obtain the required audio. An unstable supply voltage of the audio power amplifier will affect the normal operation of the amplifier.

[0003] In the prior art, it is not convenient to control the supply voltage of an audio power amplifier. Therefore, we propose a method for controlling the supply voltage of an audio power amplifier to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantage in the prior art that it is not convenient to control the supply voltage of an audio power amplifier, and to propose a method for controlling the supply voltage of an audio power amplifier.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A method for controlling the supply voltage of an audio power amplifier includes the following steps:

[0007] S1. Build a control system, which includes a voltage detection module, a voltage extraction module, a voltage identification module, a voltage comparison module, a judgment module, a voltage adjustment module, a feedback detection module, an abnormal warning module, a difference calculation module, and an abnormal level classification module;

[0008] S2. Detect the supply voltage through the voltage detection module, extract the detected data through the voltage extraction module, and identify the extracted data through the voltage identification module;

[0009] S3. Compare the identified data with the preset threshold data through the voltage comparison module, judge the comparison result through the judgment module. If the comparison is inconsistent, adjust the supply voltage through the voltage adjustment module;

[0010] S4. After adjustment, detect the adjusted voltage through the feedback detection module. If the detected voltage still does not match the threshold, give an early warning through the abnormal warning module;

[0011] After S5, the difference calculation module calculates the difference between the adjusted voltage value and the threshold value after the warning, and the calculated difference is transmitted to the abnormal level classification module. The abnormal level classification module classifies the abnormal level according to the difference.

[0012] Preferably, the abnormal level classification module is connected to a storage module, and the storage module is connected to a data management module. The storage module stores abnormal situations, and the data management module is used to manage the stored data.

[0013] Preferably, the data management module includes an authentication login unit, the authentication login unit is connected to a data sorting unit, the data sorting unit is connected to a data output and printing unit, and the data output and printing unit is connected to a data update unit.

[0014] Preferably, the storage module includes a data receiving unit, the data receiving unit is connected to a data identifying unit, the data identifying unit is connected to a data classifying unit, and the data classifying unit is connected to a data storing unit.

[0015] Preferably, the difference calculation module includes a feedback detection value extraction unit, the feedback detection value extraction unit is connected to a threshold extraction unit, the threshold extraction unit is connected to a difference calculation unit, and the difference calculation unit is connected to a result output unit.

[0016] Preferably, the voltage comparison module includes a detection value recording unit, the detection value recording unit is connected to a threshold recording unit, the threshold recording unit is connected to a detection value and threshold comparison unit, and the detection value and threshold comparison unit is connected to a comparison output unit.

[0017] Preferably, the voltage detection module is connected to the voltage extraction module, the voltage extraction module is connected to the voltage identification module, the voltage identification module is connected to the voltage comparison module, the voltage comparison module is connected to the judgment module, the judgment module is connected to the voltage adjustment module, the voltage adjustment module is connected to the feedback detection module, the feedback detection module is connected to the abnormal warning module, the abnormal warning module is connected to the difference calculation module, and the difference calculation module is connected to the abnormal level classification module.

[0018] Preferably, the data receiving unit is used to receive the data to be stored, the data identifying unit is used to identify the received data, the data classifying unit is used to classify the data, and the data storing unit is used to store the data.

[0019] In the present invention, the beneficial effects of the method for controlling the supply voltage of an audio power amplifier are as follows:

[0020] The power supply voltage is detected by a voltage detection module, the detected data is extracted by a voltage extraction module, the extracted data is identified by a voltage identification module, the identified data is compared with preset threshold data by a voltage comparison module, the comparison result is judged by a judgment module. If the comparison is inconsistent, the power supply voltage is adjusted by a voltage adjustment module. After adjustment, the adjusted voltage is detected by a feedback detection module. If the detected voltage still does not match the threshold, an abnormal warning is given by an abnormal warning module. After the warning, the difference degree between the adjusted voltage value and the threshold is calculated by a difference degree calculation module, and the calculated difference degree is transmitted to an abnormal level classification module, which classifies the abnormal level according to the difference degree;

[0021] The present invention facilitates the control of the power supply voltage of an audio power amplifier, ensures voltage stability, can give an alarm when an abnormality occurs, and can classify the alarm situation to facilitate understanding the severity of the abnormality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a control system block diagram of a method for controlling the power supply voltage of an audio power amplifier proposed by the present invention;

[0023] Figure 2 is a block diagram of a data management module of a method for controlling the power supply voltage of an audio power amplifier proposed by the present invention;

[0024] Figure 3 is a block diagram of a storage module of a method for controlling the power supply voltage of an audio power amplifier proposed by the present invention;

[0025] Figure 4 is a block diagram of a difference degree calculation module of a method for controlling the power supply voltage of an audio power amplifier proposed by the present invention;

[0026] Figure 5 is a block diagram of a voltage comparison module of a method for controlling the power supply voltage of an audio power amplifier proposed by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Embodiment 1

[0029] Referring to Figures 1 - 5 , a method for controlling the power supply voltage of an audio power amplifier includes the following steps:

[0030] S1. Set up a control system, which includes a voltage detection module, a voltage extraction module, a voltage identification module, a voltage comparison module, a judgment module, a voltage regulation module, a feedback detection module, an abnormal warning module, a difference degree calculation module, and an abnormal level classification module;

[0031] S2. Detect the supply voltage through the voltage detection module, extract the detected data through the voltage extraction module, and identify the extracted data through the voltage identification module;

[0032] S3. Compare the identified data with the preset threshold data through the voltage comparison module, judge the comparison result through the judgment module. If the comparison is inconsistent, adjust the supply voltage through the voltage regulation module;

[0033] S4. After adjustment, detect the adjusted voltage through the feedback detection module. If the detected voltage still does not match the threshold, give an alarm through the abnormal warning module;

[0034] S5. After the alarm, calculate the difference degree between the adjusted voltage value and the threshold through the difference degree calculation module, and transmit the calculated difference degree to the abnormal level classification module. The abnormal level classification module classifies the abnormal level according to the difference degree.

[0035] In this embodiment, the abnormal level classification module is connected to a storage module, and the storage module is connected to a data management module. The storage module stores abnormal situations, and the data management module is used to manage the stored data.

[0036] In this embodiment, the data management module includes an identity authentication login unit, the identity authentication login unit is connected to a data sorting unit, the data sorting unit is connected to a data output and printing unit, and the data output and printing unit is connected to a data update unit.

[0037] In this embodiment, the storage module includes a data receiving unit, the data receiving unit is connected to a data identification unit, the data identification unit is connected to a data classification unit, and the data classification unit is connected to a data storage unit.

[0038] In this embodiment, the difference degree calculation module includes a feedback detection value extraction unit, the feedback detection value extraction unit is connected to a threshold extraction unit, the threshold extraction unit is connected to a difference degree calculation unit, and the difference degree calculation unit is connected to a result output unit.

[0039] In this embodiment, the voltage comparison module includes a detection value recording unit, the detection value recording unit is connected to a threshold recording unit, the threshold recording unit is connected to a detection value and threshold comparison unit, and the detection value and threshold comparison unit is connected to a comparison output unit.

[0040] In this embodiment, the voltage detection module is connected to the voltage extraction module, the voltage extraction module is connected to the voltage identification module, the voltage identification module is connected to the voltage comparison module, the voltage comparison module is connected to the judgment module, the judgment module is connected to the voltage regulation module, the voltage regulation module is connected to the feedback detection module, the feedback detection module is connected to the abnormal warning module, the abnormal warning module is connected to the difference calculation module, and the difference calculation module is connected to the abnormal level classification module.

[0041] In this embodiment, the data receiving unit is used to receive the data to be stored, the data identification unit is used to identify the received data, the data classification unit is used to classify the data, and the data storage unit is used to store the data.

[0042] Embodiment 2

[0043] An audio power amplifier supply voltage control method includes the following steps:

[0044] S1. Build a control system, which includes a voltage detection module, a voltage extraction module, a voltage identification module, a voltage comparison module, a judgment module, a voltage regulation module, a feedback detection module, an abnormal warning module, a difference calculation module, an abnormal level classification module, a threshold setting module, and a capacity monitoring module;

[0045] S2. Detect the supply voltage through the voltage detection module, extract the detected data through the voltage extraction module, and identify the extracted data through the voltage identification module;

[0046] S3. Set the comparison threshold through the threshold setting module, transmit the comparison threshold to the voltage comparison module, compare the identified data with the preset threshold data through the voltage comparison module, judge the comparison result through the judgment module, and if the comparison is inconsistent, adjust the supply voltage through the voltage regulation module;

[0047] S4. After adjustment, detect the adjusted voltage through the feedback detection module. If the detection still does not match the threshold, give a warning through the abnormal warning module;

[0048] S5. After warning, calculate the difference between the adjusted voltage value and the threshold through the difference calculation module, transmit the calculated difference to the abnormal level classification module, and the abnormal level classification module classifies the abnormal level according to the difference.

[0049] In this embodiment, the abnormal level classification module is connected to a storage module, the storage module is connected to a data management module, the storage module stores the abnormal situation, and the data management module is used to manage the stored data.

[0050] In this embodiment, the data management module includes an authentication login unit, which is connected to a data sorting unit. The data sorting unit is connected to a data output and printing unit, and the data output and printing unit is connected to a data update unit.

[0051] In this embodiment, the storage module includes a data receiving unit, which is connected to a data recognition unit. The data recognition unit is connected to a data classification unit, and the data classification unit is connected to a data storage unit. The capacity monitoring module is connected to the storage module for monitoring the storage capacity of the storage module.

[0052] In this embodiment, the difference calculation module includes a feedback detection value extraction unit, which is connected to a threshold extraction unit. The threshold extraction unit is connected to a difference calculation unit, and the difference calculation unit is connected to a result output unit.

[0053] In this embodiment, the voltage comparison module includes a detection value recording unit, which is connected to a threshold recording unit. The threshold recording unit is connected to a detection value and threshold comparison unit, and the detection value and threshold comparison unit is connected to a comparison output unit.

[0054] In this embodiment, the voltage detection module is connected to the voltage extraction module, the voltage extraction module is connected to the voltage recognition module, the voltage recognition module is connected to the voltage comparison module, the voltage comparison module is connected to the judgment module, the judgment module is connected to the voltage regulation module, the voltage regulation module is connected to the feedback detection module, the feedback detection module is connected to the abnormal warning module, the abnormal warning module is connected to the difference calculation module, and the difference calculation module is connected to the abnormal level classification module.

[0055] In this embodiment, the data receiving unit is used to receive the data to be stored, the data recognition unit is used to recognize the received data, the data classification unit is used to classify the data, and the data storage unit is used to store the data.

[0056] As mentioned above, the above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A method for controlling the supply voltage of an audio power amplifier, characterized by comprising the following steps: S1. Build a control system, which includes a voltage detection module, a voltage extraction module, a voltage identification module, a voltage comparison module, a judgment module, a voltage regulation module, a feedback detection module, an abnormal warning module, a difference calculation module, and an abnormal level classification module; S2. Detect the supply voltage through the voltage detection module, extract the detected data through the voltage extraction module, and identify the extracted data through the voltage identification module; S3. Compare the identified data with the preset threshold data through the voltage comparison module, judge the comparison result through the judgment module, and if the comparison is inconsistent, adjust the supply voltage through the voltage regulation module; S4. After adjustment, detect the adjusted voltage through the feedback detection module. If the detected voltage still does not match the threshold, give a warning through the abnormal warning module; S5. After the warning, calculate the difference between the adjusted voltage value and the threshold through the difference calculation module, transmit the calculated difference to the abnormal level classification module, and the abnormal level classification module classifies the abnormal level according to the difference.

2. The method for controlling the supply voltage of an audio power amplifier according to claim 1, characterized in that the abnormal level classification module is connected to a storage module, the storage module is connected to a data management module, the storage module stores abnormal situations, and the data management module is used to manage the stored data.

3. The method for controlling the supply voltage of an audio power amplifier according to claim 2, characterized in that the data management module includes an identity verification login unit, the identity verification login unit is connected to a data sorting unit, the data sorting unit is connected to a data output and printing unit, and the data output and printing unit is connected to a data update unit.

4. The method for controlling the supply voltage of an audio power amplifier according to claim 3, characterized in that the storage module includes a data receiving unit, the data receiving unit is connected to a data identifying unit, the data identifying unit is connected to a data classifying unit, and the data classifying unit is connected to a data storing unit.

5. The method for controlling the supply voltage of an audio power amplifier according to claim 4, characterized in that the difference calculation module includes a feedback detection value extraction unit, the feedback detection value extraction unit is connected to a threshold extraction unit, the threshold extraction unit is connected to a difference calculation unit, and the difference calculation unit is connected to a result output unit.

6. A method for controlling the supply voltage of an audio power amplifier according to claim 5, characterized in that the voltage comparison module includes a detection value recording unit, the detection value recording unit is connected to a threshold recording unit, the threshold recording unit is connected to a detection value and threshold comparison unit, and the detection value and threshold comparison unit is connected to a comparison output unit.

7. A method for controlling the supply voltage of an audio power amplifier according to claim 6, characterized in that the voltage detection module is connected to the voltage extraction module, the voltage extraction module is connected to the voltage identification module, the voltage identification module is connected to the voltage comparison module, the voltage comparison module is connected to the judgment module, the judgment module is connected to the voltage adjustment module, the voltage adjustment module is connected to the feedback detection module, the feedback detection module is connected to the abnormal warning module, the abnormal warning module is connected to the difference calculation module, and the difference calculation module is connected to the abnormal level classification module.

8. A method for controlling the supply voltage of an audio power amplifier according to claim 7, characterized in that the data receiving unit is used to receive data to be stored, the data identification unit is used to identify the received data, and the data classification unit is used to classify the data. The data storage unit is used to store the data.

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