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High-fidelity power amplifier of current mode

A power amplifier, high-fidelity technology, applied in power amplifiers, improving amplifiers to expand bandwidth, improving amplifiers to reduce noise effects, etc., can solve the problem that the frequency band and response speed cannot meet the high-quality audio source, and the price is amazing.

Inactive Publication Date: 2006-03-22
王丰硕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is aimed at the existing high-fidelity power amplifier frequency band and response speed can not meet the higher requirements of high-quality audio sources - SACD, DVD-Audio and other new generation of advanced digital audio sources, the situation of people's needs, and the existing advanced High-fidelity power amplifiers have high requirements for devices, and the price is astonishing. Provide ultra-wideband, ultra-high-speed current-mode high-fidelity power amplifiers

Method used

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  • High-fidelity power amplifier of current mode

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Embodiment Construction

[0012] The present invention is further described in conjunction with the accompanying drawings and embodiments. The present invention discloses the application of current mode technology in audio technology. The so-called current mode high-fidelity audio power amplifier refers to a device that uses current as a variable and processes signals in the current domain. A new type of power amplifier. The amplifier is composed of input buffer stage A1, second-generation current transmitter CCII, transimpedance amplifier I / V, output buffer stage A2, negative feedback network, and integral circuit. All stages of the circuit form a transliner- TL) loop; the transimpedance amplifier is composed of compensation capacitors C3 and C11 as the core, combined with a current conveyor and a buffer output stage, one end of the compensation capacitor C3 is grounded for AC, and the other end of the compensation capacitor C3 is connected to the output terminal of the current conveyor and the buffer ...

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Abstract

This invention relates to a current mode hi-fi power amplifier composed of an input buffer level, a current transmitter, a transimpedance amplifier, a buffer output level, a negative feedback network and an integrating circuit. This invention discloses the appliance of the current mode technology in sound technology taking current as the variable to process signals in the current domain.

Description

technical field [0001] The invention is suitable for a current mode high-fidelity power amplifier and belongs to the technical field of electronic audio. Background technique [0002] It has been more than a hundred years since Edison invented the phonograph in 1877. The first 70 years of audio development was slow and stuck in an ivory tower. It was not until 1927 that Bell Laboratories invented the epoch-making negative feedback (NFB) technology that high-fidelity power amplifiers entered the stage of history. With the innovation of electronic devices and the continuous improvement of circuit forms, the performance of high-fidelity power amplifiers has been continuously improved. In the past, people used CDs to listen to music, and the performance of traditional high-end high-fidelity power amplifiers can meet the requirements. [0003] According to the difference between the high and low impedance of key nodes in the circuit, the traditional high-fidelity power amplifi...

Claims

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Application Information

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IPC IPC(8): H03F1/42H03F1/32H03F1/26H03F3/20
Inventor 王丰硕
Owner 王丰硕
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