Microphone circuit audio control circuit
An audio control and microphone technology, applied in sensor protection circuits, transducer circuits, sensors, etc., can solve problems such as component damage, signal interference, waste of voltage source input power, etc.
Inactive Publication Date: 2016-04-06
NINGBO POLINATA ELECTRONICS
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Problems solved by technology
When the audio equipment is running in an abnormal state, not only the power input by the voltage source is wasted, but also the excessive voltage in the circuit will damage the components in the circuit
At the same time, when the existing sound transmission equipment transmits the audio signal, the signal is easily interfered by the high-frequency signal, and the audio signal is prone to distortion.
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[0015] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.
[0016] Such as figure 1 As shown, the present invention includes a microphone circuit audio control circuit, including a power input module, and also includes: a signal input module connected to the power input module for receiving signals sent by external devices; a signal processing module connected to the signal input module Connected, used to filter and frequency-modulate the signal input by the signal input module, and transmit the signal to an external control device; the signal output module, connected to the signal processing module, is used to output the processed signal, and the signal is output to an external operational amplifier equipment.
[0017] According to the above audio control circuit for a microphone...
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The invention provides a microphone circuit audio control circuit and belongs to the microphone circuit audio control technology field. Problems that existing microphone equipment continuously operate when there is no audio signal to input and an anti-interference capability during audio signal transmission is poor are solved. The circuit comprises a power supply input module, a signal input module, a signal processing module and a signal output module, wherein the signal input module is connected to the power supply input module and is used for receiving a signal sent by external connection equipment; the signal processing module is connected to the signal input module and is used for carrying out filtering frequency modulation processing on a signal input by the signal input module; the signal output module is connected to the signal processing module and is used for outputting the processed signal; and the signal is output to external-connection operation amplifier equipment. The circuit possesses advantages that the transmitted signal is distortionless; the anti-interference capability is high and audio control can be achieved.
Description
technical field [0001] The invention belongs to the technical field of microphone circuit audio control, and relates to a microphone circuit audio control circuit. Background technique [0002] In today's development situation that sound transmission equipment is more and more popular with consumer groups, such as microphones, recorders and other similar devices have received higher and higher requirements from consumer groups. However, the existing sound transmission equipment does not detect whether the equipment has an audio signal input when the equipment is in use. When there is no audio signal input in the sound transmission device, the sound transmission device remains in the working state, and the power connected to the sound transmission device supplies power to the sound transmission device according to the working state. At this time, the sound transmission device is operating in an abnormal state. When the audio equipment is running in an abnormal state, not onl...
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IPC IPC(8): H04R3/00
CPCH04R3/007H04R3/02
Inventor 阮松杰
Owner NINGBO POLINATA ELECTRONICS