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A power amplifier device based on dmx protocol

A technology of equipment and power amplifier circuit, which is applied in the field of power amplifier equipment based on DMX protocol, and can solve the problem that power amplifier equipment and digital lighting equipment cannot work well together.

Inactive Publication Date: 2016-12-07
嘉力时灯光设备(东莞)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the power amplifier and digital lighting equipment in the prior art cannot work well together, and to provide a power amplifier that supports the DMX protocol and can be controlled by DMX signals, that is, a DMX protocol-based amplifier equipment

Method used

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  • A power amplifier device based on dmx protocol
  • A power amplifier device based on dmx protocol
  • A power amplifier device based on dmx protocol

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Embodiment Construction

[0026] Below, the power amplifier device based on the DMX protocol of the present invention will be further described in detail in conjunction with the drawings and embodiments.

[0027] Such as image 3 Shown, the power amplifier device based on DMX protocol of the present invention has comprised audio input interface, power amplifier circuit and audio output interface; The volume control circuit (as image 3 The part in the dotted box) includes the DMX signal receiving and processing circuit and the electronic volume circuit. Please compare figure 1 with image 3 , the power amplifier device of the present invention adopts a DMX signal receiving and processing circuit and an electronic volume circuit, replacing figure 1 In the traditional volume control circuit, so that the power amplifier device of the present invention can support the DMX protocol, the volume can be adjusted using DMX signals; The operation mode of volume adjustment is completed by pressing the button,...

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Abstract

The invention discloses a power amplifier device based on the DMX protocol, which includes an audio input interface, a volume control circuit connected to the audio input interface, a power amplifier circuit, and an audio output interface connected to the power amplifier circuit, and is characterized in that the The volume control circuit includes a DMX signal receiving and processing circuit and an electronic volume circuit. The power amplifier device of the present invention supports the DMX protocol and can be controlled by DMX signals, so that the power amplifier device and the digital lighting device can work together under the control of the DMX signal to realize integrated sound and light control of performance scenes.

Description

technical field [0001] The present invention relates to a power amplifier device, in particular to a power amplifier device based on the DMX protocol. Background technique [0002] Power amplifiers, commonly known as "power amplifiers", are used in various performances in modern society, such as square parties, personal concerts and theaters. Such as figure 1 As shown, the power amplifier is a common audio amplification device, and its basic circuit structure is a volume control circuit and a power amplification circuit: the input audio signal first passes through the volume control circuit and then enters the power amplification circuit, and the power amplification circuit converts the audio signal. After the power is amplified, the audio signal is output to speakers and other audio equipment. Now the common power amplifier is to use the volume adjustment knob set on the panel of the power amplifier device, or use the volume adjustment button of the remote control to comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R27/00H04R3/00A63J5/04A63J5/02H05B37/02
Inventor 张湋杨
Owner 嘉力时灯光设备(东莞)有限公司