Loudspeaker control circuit and audio playing device

A technology for controlling circuits and speakers, applied in transducer circuits, sensors, electrical components, etc., can solve the problem that the speaker unit cannot be accurately controlled.

Pending Publication Date: 2020-04-07
GEER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to propose a loudspeaker control circuit,

Method used

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  • Loudspeaker control circuit and audio playing device
  • Loudspeaker control circuit and audio playing device

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Embodiment Construction

[0025] 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 some 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.

[0026] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, if there are descriptions involving "first", "second" and ...

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Abstract

The invention discloses a loudspeaker control circuit and electronic equipment. The loudspeaker control circuit comprises a main control unit, a power amplifier, a voltage detection circuit, a currentdetection circuit and an analog-to-digital conversion circuit, the main control unit outputs an audio signal, the power amplifier amplifies the power of the audio signal to a loudspeaker, and the voltage detection circuit detects the output voltage of the power amplifier. The voltage detection circuit detects an output current of the power amplification unit. The analog-to-digital conversion circuit converts the detection current and the detection voltage into corresponding digital detection current signals and digital detection voltage signals and outputs the digital detection current signals and the digital detection voltage signals to the main control unit so as to feed back and adjust audio signals output by the main control unit. A loudspeaker unit is used for solving the technical problem that the loudspeaker unit cannot be accurately controlled.

Description

technical field [0001] The invention relates to the technical field of electronic equipment, in particular to a loudspeaker control circuit and an audio playback device. Background technique [0002] The current market audio power amplifier protection scheme is mainly based on power amplification and front-end signal processing. For the use and protection of loudspeakers, pre-modeling is usually used to modify parameter schemes, which may easily cause discrepancies between actual output and modeling estimates. When outputting medium and high power, the speaker unit cannot be precisely controlled, which may easily cause the speaker unit to overheat and burn out, and the amplitude is too large to cause excessive THD (Total Harmonic Distortion). Contents of the invention [0003] The main purpose of the present invention is to propose a loudspeaker control circuit, aiming at solving the technical problem that the loudspeaker unit cannot be precisely controlled. [0004] In ...

Claims

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Application Information

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IPC IPC(8): H04R9/06H04R3/00
CPCH04R3/00H04R9/06
Inventor 董冰洋
Owner GEER TECH CO LTD
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