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Loudspeaker driving method and circuit for mobile equipment

A technology of mobile equipment and driving method, which is applied in branch equipment, electrical components, telephone communication, etc., can solve the problems of high noise floor and affect the noise floor performance of top speakers, and achieve low system noise, high sound quality, and ensure system sound effects. Effect

Pending Publication Date: 2021-06-22
AAC MICROTECH CHANGZHOU
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a loudspeaker driving method for mobile devices, aiming to solve the problem that when the existing loudspeaker is driven, there is a large noise floor, which affects the performance of the bottom noise when the top speaker is used as a receiver

Method used

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  • Loudspeaker driving method and circuit for mobile equipment
  • Loudspeaker driving method and circuit for mobile equipment
  • Loudspeaker driving method and circuit for mobile equipment

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] Such as figure 1 as shown, figure 1 It is a flowchart of a speaker driving method for a mobile device provided by an embodiment of the present invention. A speaker driving method for a mobile device provided in an embodiment of the present invention, the mobile device includes a processing chip 1, a first power amplifier 2 connected to the processing chip 1, a second power amplifier 3, and a channel connected to the processing chip 1 A selector 4 and a first speaker 5 connected to the channel selector 4 . Specifically, the method includes the following steps:

[0028] S1. The processing ...

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Abstract

The invention provides a loudspeaker driving method and circuit for mobile equipment. The equipment comprises a mobile equipment processing chip, a first power amplifier and a second power amplifier which are connected with the processing chip, a channel selector connected with the processing chip, and a first loudspeaker connected with the channel selector. The method comprises the steps that the processing chip determines use scene information of the mobile equipment; if the use scene information is in a handheld call mode, the processing chip controls the channel selector to be switched to the first power amplifier to be communicated with the first loudspeaker so as to drive the first loudspeaker to work; and if the use scene information is audio and video playing scene information or a hands-free call mode, the processing chip controls the channel selector to be switched to the second power amplifier to be communicated with the first loudspeaker so as to drive the first loudspeaker to work. According to the embodiment of the invention, by switching different power amplifiers for driving, the background noise of the system is ensured to be as low as possible when a user carries out a handheld call, and meanwhile, the method has enough driving capability when the user carries out the hand-free call and plays music.

Description

【Technical field】 [0001] The invention belongs to the technical field of loudspeaker driving, and in particular relates to a loudspeaker driving method and circuit for mobile devices. 【Background technique】 [0002] In the prior art, a general non-speaker multifunctional mobile phone includes at least one receiver and a loudspeaker, the receiver is responsible for playing voice signals when the mobile phone is in the hand-held call mode, and the speaker is responsible for playing voice signals when the mobile phone is in the hands-free call mode, and the usage scene information is Audio and video playback scene information plays music signals. For the handheld call mode, the human ear is close to the mobile phone to make a call, so the call quality is high, especially the noise floor control of the amplifier circuit. The receiver is specially designed for hand-held calls, and is used for close-range listening by the human ear. The rated power is low (generally within 50mW),...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/02H04M1/03H04M1/72442H04M1/72454H04M1/72484
CPCH04M1/0277H04M1/03
Inventor 葛欢王洪兴
Owner AAC MICROTECH CHANGZHOU
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