CN204887387U

CN204887387U - Audio amplifier frequency divider

Info

Publication number: CN204887387U
Application number: CN201520458930.1U
Authority: CN
Inventors: 姚洪波
Original assignee: ZHUHAI HUIWEI SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: ZHUHAI HUIWEI SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2015-06-29
Filing date: 2015-06-29
Publication date: 2015-12-16
Anticipated expiration: 2025-06-29

Abstract

The utility model relates to an audio amplifier frequency divider. This frequency divider includes high frequency filter and well low frequency filter. Wherein, still include the low frequency filter that is equipped with on well low frequency filter. The last resistance R1 resistance volume of high frequency filter increases the last electric capacity C2 capacitance of 5%, high frequency filter and increases the last inductance L2 inductance value increase by 1% of 5%, high frequency filter. Electric capacity C1 capacitance on the well low frequency filter increases the last inductance L1 inductance value of 5%, high frequency filter increases by 1%. The inductance L1 inductance value of low frequency filter increases by 1%. The utility model discloses it is clear to have the sound of improvement, has optimized the circuit, has reduced distortion and reduce cost's effect.

Description

A kind of loudspeaker enclosure divider

Technical field

The utility model belongs to audio amplifier field, particularly a kind of be suitable for 2.5,3.5 loudspeaker enclosure divider.

Background technology

Frequency divider is a kind of circuit arrangement in audio amplifier, the music signal of input is separated into the different pieces such as high pitch middle pitch, bass, then sends into respectively in mutually high, medium and low sound loudspeaker unit and reset.Frequency divider refers to and is made a distinction by the voice signal of different frequency range, awards amplification respectively, then delivers in the loud speaker of corresponding band and resets.

Utility model content

In view of the above problems, the purpose of this utility model is to provide a kind of clear sound that improves to understand, optimizes circuit, the loudspeaker enclosure divider decreasing distortion and reduce costs.

For achieving the above object, a kind of loudspeaker enclosure divider that the utility model provides, comprises high frequency filter and medium and low frequency filter.Wherein, the low-frequency filter that medium and low frequency filter is provided with also is included in.Resistance R1 resistance on high frequency filter increases by 5%, and the electric capacity C2 capacitance on high frequency filter increases by 5%, and inductance L 2 inductance value on high frequency filter increases by 1%.Electric capacity C1 capacitance on medium and low frequency filter increases by 5%, and inductance L 1 inductance value on high frequency filter increases by 1%.Inductance L 1 inductance value of low-frequency filter increases by 1%.

In some embodiments, the resistance value of resistance R1 is 1.0 Ω, and the capacitance of electric capacity C2 is 3.9 μ, and the inductance value of inductance L 2 is 1.50m Η.The capacitance of electric capacity C1 is 3.9 μ, and the inductance value of inductance L 2 is 1.50m Η.The inductance value of inductance L 2 is 6.04m Η.

The utility model beneficial effect has raising clear sound to understand, optimizes circuit, the effect decreasing distortion and reduce costs.Owing to being that the high frequency curve reaching adjustment sound equipment by changing the variable of R1, C2, L2 in circuit changes audition, the variable changing L1, C1 reaches the definition of the intermediate frequency sound of adjustment sound equipment, and the variable changing L3 reaches the loudness and amount sense effect that change medium and low frequency.Namely Zai Jia mono-road frequency division on the basis of two loudspeaker box, is responsible for low frequency specially and amplifies, and consistent for reaching sound, this bass horn is the same with the middle bass horn of original two frequency divisions, and part-frequency point is selected lower, is 0.5 frequency division.For the loudspeaker box of 2.5,2.5 loudspeaker box enhance energy sense and the plumpness of low frequency, and intermediate frequency is more clear penetrating, low frequency reproduction effect is fine, can save super-bass loudspeaker box completely, work under the environment of less usage space, the system that simultaneously reduces is put and is allocated difficulty.Thus, the main advantage of 2.5 loudspeaker box has: the bass horn that (1) enhances low frequency reproduction effect (2) 2.5 loudspeaker box of system follows the middle bass horn of original two frequency divisions to be the same, two loudspeaker box clear sounds understand, the advantage of each frequency range balance.(3) avoid the loaded down with trivial details of traditional three frequency division circuit while solving the deficiency of two loudspeaker box designs, optimize circuit, decrease distortion.(4) save super-bass loudspeaker box, reduce costs, improve cost performance.Achieve raising clear sound to understand, optimize circuit, the effect decreasing distortion and reduce costs.

Accompanying drawing explanation

Fig. 1 is the utility model principle schematic;

Fig. 2 is the frequency response curve figure of 2.5 loudspeaker box.

Embodiment

Below in conjunction with accompanying drawing, utility model is described in further detail.

As shown in Figure 1, a kind of loudspeaker enclosure divider, comprises high frequency filter and medium and low frequency filter.Also be included in the low-frequency filter that medium and low frequency filter is provided with.Resistance R1 resistance on high frequency filter increases by 5%, and the electric capacity C2 capacitance on high frequency filter increases by 5%, and inductance L 2 inductance value on high frequency filter increases by 1%.Electric capacity C1 capacitance on medium and low frequency filter increases by 5%, and inductance L 1 inductance value on high frequency filter increases by 1%.Inductance L 1 inductance value of low-frequency filter increases by 1%.The resistance value of resistance R1 is 1.0 Ω, and the capacitance of electric capacity C2 is 3.9 μ, and the inductance value of inductance L 2 is 1.50m Η.The capacitance of electric capacity C1 is 3.9 μ, and the inductance value of inductance L 2 is 1.50m Η.The inductance value of inductance L 2 is 6.04m Η.The high frequency curve being reached adjustment sound equipment by the variable changing R1, C2, L2 in circuit changes audition, and the variable changing L1, C1 reaches the definition of the intermediate frequency sound of adjustment sound equipment, and the variable changing L3 reaches the loudness and amount sense effect that change medium and low frequency.Namely Zai Jia mono-road frequency division on the basis of two loudspeaker box, is responsible for low frequency specially and amplifies, and consistent for reaching sound, this bass horn is the same with the middle bass horn of original two frequency divisions, and part-frequency point is selected lower, is 0.5 frequency division.

As shown in Figure 2, for the loudspeaker box of 2.5,2.5 loudspeaker box enhance energy sense and the plumpness of low frequency, intermediate frequency is more clear penetrating, low frequency reproduction effect is fine, can save super-bass loudspeaker box completely, work under the environment of less usage space, the system that simultaneously reduces is put and is allocated difficulty.The main advantage of 2.5 loudspeaker box has: the bass horn that (1) enhances low frequency reproduction effect (2) 2.5 loudspeaker box of system follows the middle bass horn of original two frequency divisions to be the same, two loudspeaker box clear sounds understand, the advantage of each frequency range balance.(3) avoid the loaded down with trivial details of traditional three frequency division circuit while solving the deficiency of two loudspeaker box designs, optimize circuit, decrease distortion.(4) save super-bass loudspeaker box, reduce costs, improve cost performance.Achieve raising clear sound to understand, optimize circuit, the effect decreasing distortion and reduce costs.

Above-described is only execution modes more of the present utility model.For the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design, can also make some distortion and improvement, these all belong to the protection range of utility model.

Claims

1. a loudspeaker enclosure divider, comprises high frequency filter and medium and low frequency filter, it is characterized in that, be also included in the low-frequency filter that medium and low frequency filter is provided with;

Resistance R1 resistance on described high frequency filter increases by 5%; Electric capacity C2 capacitance on described high frequency filter increases by 5%; Inductance L 2 inductance value on described high frequency filter increases by 1%;

Electric capacity C1 capacitance on described medium and low frequency filter increases by 5%; Inductance L 1 inductance value on described high frequency filter increases by 1%;

Inductance L 1 inductance value of described low-frequency filter increases by 1%.

2. a kind of loudspeaker enclosure divider according to claim 1, is characterized in that, the resistance value of described resistance R1 is 1.0 Ω; The capacitance of described electric capacity C2 is 3.9 μ; The inductance value of described inductance L 2 is 1.50m Η;

The capacitance of described electric capacity C1 is 3.9 μ; The inductance value of described inductance L 2 is 1.50m Η;

The inductance value of described inductance L 2 is 6.04m Η.