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Speaker system

A loudspeaker and power amplifier technology, applied in the field of loudspeaker systems, can solve problems such as carbon nanotubes that have not yet been discovered, and achieve the effects of cost reduction and simple structure

Active Publication Date: 2010-09-01
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, carbon nanotubes have not been found to be used in the acoustic field in the prior art

Method used

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Embodiment Construction

[0017] The loudspeaker system of the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] see figure 1 , the embodiment of the present invention provides a speaker system 10 , the speaker system 10 includes a speaker 12 , a power amplifier 14 and an audio signal source 20 . The power amplifier 14 is electrically connected to the speaker 12 . The audio signal source 20 is electrically connected to the power amplifier 14 .

[0019] The audio signal source 20 provides an audio electrical signal. In this embodiment, the electrical audio signal is an analog signal. The frequency of change of the audio electric signal changes according to the change of sound frequency. The audio signal source 20 can be a radio, a tape recorder, a player or a computer.

[0020] The power amplifier 14 is electrically connected to the audio signal source 20 . Specifically, the audio signal source 20 has an audio electrical sig...

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Abstract

The invention relates to a speaker system which comprises a speaker and a power amplifier, wherein the power amplifier changes received audio electrical signals to amplified voltage signals by power amplification and drives the speaker to generate sound; the speaker comprises a thermal sound-generating element and at least two electrodes which are arranged at intervals and are electrically connected with the thermal sound-generating element, and the at least two electrodes input the amplified voltage signals to the thermal sound-generating element. The speaker system is applicable to the electroacoustic transformation field, has simple structure, can operate in a nonmagnetic environment, and has wider sound-generating frequency range and higher sound-generating intensity.

Description

technical field [0001] The invention relates to a loudspeaker system, in particular to a loudspeaker system based on thermal sound generation. Background technique [0002] A loudspeaker system in the prior art includes a loudspeaker and a power amplifier, the power amplifier is used to receive an electrical audio signal and amplify the power of the electrical audio signal to drive the loudspeaker to produce sound. There are many types of existing loudspeakers, which can be divided into electrodynamic loudspeakers, electrostatic loudspeakers and piezoelectric loudspeakers according to their working principles. Although they work in different ways, they generally push the surrounding air by generating mechanical vibrations, causing the air medium to fluctuate so as to realize the conversion of "electricity-force-acoustic". Among them, the dynamic speaker is the most widely used. [0003] In the existing electrodynamic loudspeaker, a voice coil is placed in a changing magnet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R23/00H04R3/00H03F3/20C01B31/02H04R3/12
Inventor 姜开利肖林陈卓范守善
Owner TSINGHUA UNIV
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