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Commercial electronic frequency-division power amplifier

A power amplifier and electronic technology, applied in power amplifiers, audio amplifiers, low-frequency amplifiers, etc., can solve problems such as inconvenient use, difficulty in use by ordinary users, and increased difficulty in customer acceptance

Pending Publication Date: 2017-02-22
闫天时
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Currently known commercial audio playback systems include power amplifiers and speakers. Speakers are divided into two frequency divisions, three frequency divisions or more frequency divisions. The frequency division methods include power LC frequency division and electronic frequency division. Power LC frequency division is suitable for For a frequency division system with a frequency division point above 1KHz, if the frequency division point is too low, the output of the power amplifier will be short-circuited and there will be a risk of burning out, and at the same time, it will also make it difficult to realize the inductance and capacitance of the frequency division element. In this case, the usual method is to use The independent electronic frequency divider is used as a frequency division device to realize the frequency division function of the lower frequency division point, but the independent electronic frequency divider has the following imperfections:
[0003] ① Device application connections are too complicated and inconvenient to use, making it difficult for ordinary users to use
[0004] ② The cost of equipment is high, and it is more difficult for customers to accept
[0005] ③ The size of the equipment increases, making it inconvenient to use in a small space

Method used

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  • Commercial electronic frequency-division power amplifier
  • Commercial electronic frequency-division power amplifier

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Embodiment Construction

[0010] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0011] figure 1 The structure of a commercial electronic frequency division power amplifier according to an embodiment of the present invention is schematically shown.

[0012] Such as figure 1 As shown, a commercial electronic frequency division power amplifier includes an input control module 1 , an electronic frequency division module 2 , a frequency division mode control module 3 , an amplification module 4 , an audio output port 5 and a power supply circuit 6 .

[0013] Such as figure 1 As shown, the input control module 1 receives an external audio signal and sends it to the electronic frequency division module 2, and the electronic frequency division module 2 receives the audio signal sent by the input control module 1 and performs high-pass and low-pass frequency division processing before sending it to the frequency division mode control Module 3,...

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Abstract

The invention discloses a commercial electronic frequency-division power amplifier. The commercial electronic frequency-division power amplifier comprises an input control module, an electronic frequency-division module, a frequency-division mode control module, an amplification module, an audio output port and a power supply circuit; three control modes including a signal direct-pass mode, a parallel input mode and a bridging mode can be realized through the input control module; three modes including a signal high-pass mode, a signal direct-pass mode and a signal low-pass mode can be realized through the frequency-division mode control module; and thus, a complex electronic frequency-division function can be realized in a relatively simple mode.

Description

technical field [0001] The invention relates to an audio frequency power amplifier, in particular to a commercial electronic frequency division power amplifier such as a theater stage. Background technique [0002] Currently known commercial audio playback systems include power amplifiers and speakers. Speakers are divided into two frequency divisions, three frequency divisions or more frequency divisions. The frequency division methods include power LC frequency division and electronic frequency division. Power LC frequency division is suitable for For a frequency division system with a frequency division point above 1KHz, if the frequency division point is too low, the output of the power amplifier will be short-circuited and there will be a risk of burning out, and at the same time, it will also make it difficult to realize the inductance and capacitance of the frequency division element. In this case, the usual method is to use The independent electronic frequency divide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F3/181H03F3/20H04R3/00
CPCH03F3/181H03F3/20H04R3/00H03F2200/03
Inventor 闫天时
Owner 闫天时
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