Amplifier output drive and induction voltage drive composite full-range loudspeaker

Abstract

The invention discloses a composite full-range loudspeaker driven by power amplifier output and induced voltage, which comprises a main loudspeaker (1), and a main voice coil (2) and a magnetic column (3) are arranged in the main loudspeaker (1), and is characterized in that : The induction coil (4) is wound on the main voice coil (2), and the induction coil (4) is connected to the tweeter (5) through a wire; the tweeter (5) is arranged at the end of the magnetic column (3) set coaxially with the main speaker (1). This is an innovative design with a simple structure and low production difficulty. It is a composite full-range loudspeaker that is driven by power amplifier output and induced voltage to produce accurate positioning and fully display the timbre of each frequency band.

Description

technical field [0001] The invention relates to a loudspeaker, in particular to a compound full-range loudspeaker which utilizes the principle of electromagnetic induction to generate an audio voltage which is synchronous with the main voice coil, at the same frequency and theoretically equal in volume, and uses the audio voltage to drive the tweeter to produce sound . Background technique [0002] The traditional loudspeaker is a kind of sound-generating device, which adopts the principle of electric motor and is driven by the audio voltage output by the power amplifier circuit; when the loudspeaker of this principle wants to obtain full-range sound, it must be equipped with high, middle and bass units, but due to these The unit cannot be used under the condition of co-point and co-planar, so its electro-acoustic parameters are severely distorted and its electro-acoustic performance is poor; although there are coaxial full-range speakers that share a driving source on the m...

AI Technical Summary

Problems solved by technology

[0002] The traditional loudspeaker is a kind of sound-generating device, which adopts the principle of electric motor and is driven by the audio voltage output by the power amplifier circuit; when the loudspeaker of this principle wants to obtain full-range sound, it must be equipped with high, middle and bass units, but due to these The unit cannot be used under the condition of co-point and co-planar, so its electro-acoustic parameters are severely distorted and its electro-acoustic performance is poor; although there are coaxial full-range speakers that share a driving source on the market, the driving sources of the high and low units are all from The audio voltage output by the power amplifier must be adapted to a complicated frequency divider; adding a frequency divider to the system will not only cause power loss, but also cause phase deterioration and damping deterioration, weakening the amplifier's control over the speaker and the production and processing of speakers with this structure requires extremely high technical requirements, and mechanized production is difficult

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