Power supply control circuit, power supply control device and power supply control method for audio interface equipment
A technology of power supply control circuit and audio interface, which is applied to instruments, recording signal processing, data recording, etc., to achieve the effect of simple operation, convenient and fast operation, and convenient control.
Inactive Publication Date: 2014-03-26
BEIJING HUADA INFOSEC TECH
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[0006] The embodiment of the present invention provides a power supply control circuit, device and method for audio interface equipment to solve the problems existing in the battery power supply control mode for external audio interface equipment in the prior art
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[0049] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The 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 making creative efforts shall fall within the protection scope of the present invention.
[0050] figure 1 It is a schematic diagram of the use of the audio interface device provided by the embodiment of the present application.
[0051] Such as figure 1 As shown, 100 in the figure is an audio interface device, and 200 is a smart terminal. Both the audio interface device 100 and the smart terminal 200 are provided with matc...
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The embodiment of the invention discloses a power supply control circuit, a power supply control device and a power supply control method for audio interface equipment. The equipment comprises an audio interface, a power supply module and an audio application function module, wherein the audio interface comprises at least one input interface; the power supply control circuit comprises a switching circuit, wherein one end of the switching circuit is connected with the output end of the power supply module and the other end of the switching circuit is connected with the audio application function module, and the switching circuit is used for controlling the switch-on or switch-off between the power supply module and the audio application function module; the control end of the switching circuit is connected with one or more input interfaces in audio interfaces, is used for receiving electrical signals output by one or more input interfaces in the audio interfaces, and is switched on under the control of the electrical signals output by one input interface or the electrical signals output by a plurality of input interfaces at the same time. Compared with the prior art, the power supply control circuit for the audio interface equipment can conveniently control the power supply of the audio interface equipment, and is simple, convenient and quick to operate.
Description
technical field [0001] The invention relates to the technical field of control circuits, in particular to a power supply control circuit, device and method for audio interface equipment. Background technique [0002] With the development of electronic information technology and the popularization of portable intelligent terminal products (such as smart phones and tablet computers, etc.), product applications are diversified and innovative. For example: the current mobile phone is not only used for calling and sending text messages, but also can take pictures, video cameras, listen to music, play games, surf the Internet, etc., which greatly enriches our spare time life. [0003] The headphone audio interface on the smart terminal is not only used for listening to music, it has become a general interface and can be connected with many external devices. These external devices are connected with the smart terminal to form a new product application form, such as audio card swipi...
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IPC IPC(8): G11B20/00
Inventor 郭瑞宾张炜张昊
Owner BEIJING HUADA INFOSEC TECH