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Through type high-definition power amplifying circuit of sound system

A sound system and power amplifier circuit technology, applied in power amplifiers, improving amplifiers to reduce nonlinear distortion, etc., can solve problems such as phase distortion, power amplifier and speaker matching distortion, etc. The effect of the bias problem

Inactive Publication Date: 2010-09-15
方炳钧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0029] The purpose of the present invention is to provide a reasonable circuit, low cost, stable and reliable performance, which can solve the phase distortion problem in the signal transmission process and the matching distortion problem of the power amplifier and the speaker, so that the sound quality, timbre, sound wind and sound atmosphere are all excellent. Audio system straight-through high-definition power amplifier circuit

Method used

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  • Through type high-definition power amplifying circuit of sound system
  • Through type high-definition power amplifying circuit of sound system
  • Through type high-definition power amplifying circuit of sound system

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Embodiment Construction

[0038] The present invention will be described in further detail below in conjunction with accompanying drawing (embodiment):

[0039] figure 1 Among them, 1 is the sound source, 2 is the amplifying drive circuit, 3 is the follower circuit, 4 is the power circuit, 5 is the speaker, 6 is the double bias servo signal direct circuit, 7 is the current mode circuit, 8 is the bias external control circuit.

[0040] figure 2 Among them, 1' is the left audio source, 2' is the left amplifier drive circuit, 3' is the left follower circuit, 4 is the power supply circuit, 5' is the left speaker, 6' is the left double bias servo signal through circuit, 7' is the left Current mode circuit, 8 is a bias external control circuit. 1" is the right audio source, 2" is the right amplifier drive circuit, 3" is the right follower circuit, 5" is the right speaker, 6" is the right double bias servo signal pass-through circuit, and 7" is the right current mode circuit.

[0041] The amplification dr...

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Abstract

The invention relates to a through type high-definition power amplifying circuit of a sound system, comprising a sound source, an amplification driving circuit, a follower circuit, a power circuit and a loudspeaker. The through type high-definition power amplifying circuit is characterized by also comprising a double-offset servo signal through circuit and a current mode circuit, wherein one path of the output end of the amplification driving circuit is connected with the follower circuit, and the other path thereof is connected with the double-offset servo signal through circuit; signals output by the double-offset servo signal through circuit are sent back to the amplification driving circuit; the input end of the current mode circuit is connected with the follower circuit,, and the output end thereof is connected with the amplification driving circuit. The invention has reasonable line, low manufacture cost and stable and reliable performance and can solve the phase distortion problem in the signal transmission process and the matching distortion problem of the power amplifier and the loudspeaker to make the tone quality, the tone colour, the rhythm and tone voice optimal.

Description

technical field [0001] The invention relates to a power amplifier circuit, in particular to an audio system straight-through high-definition power amplifier circuit. Background technique [0002] Looking back at the development history of power amplifiers, from having an input transformer to no input transformer, from having an output transformer to replacing the output transformer with an output capacitor (called OTL), from having an output capacitor to no output capacitor (called OCL, the OCL circuit marks the power amplifier entering the HiFi era ), although only one component is changed on the surface, but one step at a time, one step at a time, one step at a time, one revolution at a time. [0003] We know that music can be described in four aspects; sound quality, timbre, sound wind, and tone. Regarding the sound quality and timbre, I believe everyone is very clear about it, but the sound wind and sound air are proposed in this patent application. The following will s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/32H03F3/20
Inventor 方炳钧
Owner 方炳钧
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