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Bluetooth-supporting voice part output control circuit with preceding-stage amplification function

A technology of output control and pre-amplification, which is applied in the direction of amplifier combination, speaker distribution signal, etc., can solve the problems of dry sound output and low output power, and achieve the effect of solving dry sound output, sufficient output power, and optimizing the output effect of sound elements

Pending Publication Date: 2021-08-17
贵州凯晟电子技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides a sound element output control circuit that supports Bluetooth and has pre-amplification, aiming to solve the problem of dry sound output caused by relatively low output power in the prior art

Method used

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  • Bluetooth-supporting voice part output control circuit with preceding-stage amplification function
  • Bluetooth-supporting voice part output control circuit with preceding-stage amplification function
  • Bluetooth-supporting voice part output control circuit with preceding-stage amplification function

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Embodiment Construction

[0068] 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.

[0069] Such as figure 1 as shown, figure 1 It is a structural schematic diagram of a sound unit output control circuit supporting Bluetooth and with pre-amplification provided by the embodiment of the present invention.

[0070] The audio element output control circuit supporting Bluetooth and with pre-amplification includes a power supply circuit 1, a Bluetooth drive circuit 2, and a power output circuit 3 with a pre-stage operational amplifier; the power output circuit 3 with a pre-stage operational amplifier includes a power output circuit for a pre-stage operational amplifier The circuit 32 ,...

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PUM

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Abstract

The invention provides a Bluetooth-supporting voice part output control circuit with a preceding-stage amplification function. The control circuit comprises a power supply circuit, a Bluetooth drive circuit and a power output circuit with a preceding-stage operational amplifier, the power output circuit with the preceding-stage operational amplifier comprises a preceding-stage operational amplifier power output circuit, a first-class power output circuit and a second-class power output circuit; the power supply circuit is electrically connected with the Bluetooth drive circuit, the preceding-stage operational amplifier power output circuit, the first-class power output circuit and the second-class power output circuit respectively; the Bluetooth drive circuit is electrically connected with the preceding-stage operational amplifier power output circuit, the first-class power output circuit and the second-class power output circuit respectively; the preceding-stage operational amplifier power output circuit is electrically connected with the first-class power output circuit and the second-class power output circuit respectively; the first type power output circuit is electrically connected with a first external player; and the second type power output circuit is electrically connected with a second external player. According to the invention, the problem of dry sound effect output can be solved.

Description

technical field [0001] The invention belongs to the field of audio technology, and in particular relates to a sound element output control circuit supporting bluetooth and equipped with pre-amplification. Background technique [0002] Most of the electronic products currently on the market have audio functions. After intense work, people often listen to music to relieve stress, or use electronic products with audio functions during entertainment and work. At this time, higher requirements are placed on the sound quality of electronic products, and the factor that directly affects the sound quality of electronic products is the performance of the audio control circuit of electronic products. The output power of the existing audio control circuit is relatively low, so that the electronic product has the problem of dry sound output. Contents of the invention [0003] The embodiment of the present invention provides a sound unit output control circuit supporting Bluetooth an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/12H03F3/68
CPCH03F3/68H04R3/12
Inventor 吴友森陈庆潘新良其他发明人请求不公开姓名
Owner 贵州凯晟电子技术有限公司
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