Volume regulating method and device of power amplifier system

A power amplifier system and volume adjustment technology, applied in signal processing, sensor components, sensors, etc., can solve the problems of reduced efficiency, reduced output power, and constant power supply voltage, and achieve the effect of improving efficiency

Active Publication Date: 2016-11-09
TCL TECH ELECTRONICS (HUIZHOU) CO LTD
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AI Technical Summary

Problems solved by technology

[0004] Although the volume adjusting device can realize the output of the loudspeaker without distortion at the maximum volume of the audio signal, but in the process of reducing the volume of the audio signal, the output power of the power amplifier circuit will decrease accordingly, while the power supply voltage remains unchanged.
In this way, when the volume decreases, the input power of the power amplifier circuit remains unchanged, while the output power decreases and the efficiency decreases.

Method used

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  • Volume regulating method and device of power amplifier system
  • Volume regulating method and device of power amplifier system
  • Volume regulating method and device of power amplifier system

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0037] The invention provides a method for adjusting the volume of a power amplifier system. Wherein, the power amplifier system includes a power amplifier module for amplifying the received audio signal, a power supply module for providing working voltage to the power amplifier module, and a volume control module for outputting a volume control signal.

[0038] In one embodiment, the volume adjustment method of the power amplifier system includes:

...

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Abstract

The invention discloses a volume regulating method and device of a power amplifier system. The power amplifier system comprises a power amplifier module for implementing power amplification on a received audio signal, a power supply module for providing a working voltage for the power amplifier module, and a volume control module for outputting a volume control signal, wherein the volume regulating method of the power amplifier system comprises the following steps: detecting whether the volume control module outputs the volume control signal which is used for regulating a volume value of the power amplifier system; and if the volume control signal is detected, controlling the power supply module to output a power supply voltage which is matched with the volume control signal to ensure that the volume value of the power amplifier system corresponds to the volume control signal. By adopting the technical scheme of the invention, the efficiency of the power amplifier system can be improved.

Description

technical field [0001] The invention relates to the technical field of audio processing, in particular to a volume adjustment method and device for a power amplifier system. Background technique [0002] The power amplification system (referred to as the power amplifier system) in the audio equipment includes a power supply, a power amplification circuit and a volume control module; among them, the power supply is used to provide the working voltage for the power amplification circuit, and the power amplification circuit is used to convert the power (amplitude) of the audio signal value) is amplified to push the speaker to sound, and the volume control module is used to output the volume control signal. [0003] During the working process of audio equipment, users often adjust the speaker volume according to their personal preferences. The existing volume adjustment device adjusts the volume of the speaker by adjusting the amplitude of the volume component of the audio sign...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00
CPCH04R3/00H04R2430/01
Inventor 刘志成李中平陈成辉
Owner TCL TECH ELECTRONICS (HUIZHOU) CO LTD
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