Low-distortion power amplifier system based on noise suppression circuit

A noise suppression and power amplifier system technology, applied in power amplifiers, improved amplifiers to reduce nonlinear distortion, amplifiers, etc., can solve problems such as signal distortion and signal distortion, and achieve the effect of improving quality and avoiding signal distortion

Inactive Publication Date: 2016-09-28
成都特普瑞斯节能环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defect that the current power amplifier system easily distorts the signal after amplifying the signal, resulting in signal distortion, and provides a low-distortion power amplifier system based on the noise suppression circuit

Method used

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  • Low-distortion power amplifier system based on noise suppression circuit
  • Low-distortion power amplifier system based on noise suppression circuit

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Embodiment

[0015] Such as figure 1 As shown, the present invention mainly consists of a static bias circuit, a power amplifying circuit connected to the static bias circuit, a noise suppression circuit connected to the static bias circuit, the negative pole is connected to the noise suppression circuit, and the positive pole is used as the input of the power amplifier system Capacitor C1 at one end, resistor R1 with one end connected to the negative pole of capacitor C1 and grounded at the other end, and capacitor C5 with negative pole grounded and positive pole connected to the power amplifier circuit after passing through resistor R10. The input terminal of the low distortion power amplifier system of the present invention is connected with an external signal source.

[0016] Among them, the static bias circuit consists of transistor VT1, transistor VT2, transistor VT3, transistor VT4, transistor VT5, transistor VT6, resistor R2, resistor R3, resistor R4, resistor R5, diode D1, diode D...

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Abstract

The invention discloses a low-distortion power amplifier system based on a noise suppression circuit, which is characterized in that it mainly consists of a static bias circuit, a power amplification circuit connected with the static bias circuit, and a noise suppression circuit connected with the static bias circuit , the negative pole is connected to the noise suppression circuit, the positive pole is the capacitor C1 as the input end of the power amplifier system, and the resistor R1 is connected to the negative pole of the capacitor C1 at one end and grounded at the other end. The invention has a stable static working point, thereby ensuring that the waveform of the amplified signal is the same as that of the signal before amplifying, avoiding signal distortion caused by signal distortion after amplifying, and greatly improving the quality of sound playback.

Description

technical field [0001] The invention relates to a power amplifier system, in particular to a low-distortion power amplifier system based on a noise suppression circuit. Background technique [0002] The power amplifier system is the most basic equipment in the audio system. Its task is to amplify the weak electrical signal from the signal source to drive the speaker to emit sound. However, there is a big problem in the existing power amplifier system, that is, the amplified signal tends to be distorted to varying degrees, which leads to signal distortion and seriously affects the auditory effect. Contents of the invention [0003] The purpose of the present invention is to overcome the defect that the current power amplifier system easily distorts the signal after amplifying the signal, resulting in signal distortion, and provides a low-distortion power amplifier system based on a noise suppression circuit. [0004] The purpose of the present invention is achieved with th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/32H03F3/20
CPCH03F1/32H03F1/3264H03F3/20
Inventor 不公告发明人
Owner 成都特普瑞斯节能环保科技有限公司
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