Guide changing type symmetrical power amplifier

A transductive, symmetrical technology, used in power amplifiers and other directions

Inactive Publication Date: 2008-01-23
施少俊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no problem of midpoint potential drift in the reverse-conductor symmetrical power amplifier circuit, so it can ensure that the amplifier works in the best state, and at the same time eliminate many problems caused by the midpoint drift of the symmetrical power amplifier using dual symmetrical power supplies.

Method used

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  • Guide changing type symmetrical power amplifier

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Embodiment Construction

[0005] It can be seen from the drawings in the specification that the composition of the entire power amplifier circuit is very ordinary, but the idea is clever. Therefore, adjust the voltage value according to the attached figure of the manual, and adjust the quiescent current below 20mA.

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Abstract

An exchange type symmetric power amplifier is operated by replacing a bidirectional power source with a unidirectional power source, which renovates method of electronic technicians to produce acoustic circuits in countries all over the world in several decades (at least five decades) and witnesses a significant reform of world acoustic circuits. Operation principle of the power amplifier lies in that variation of a load potential starts a gate of a power amplifying tube power source, thus switching on the power amplifying tube with two power source electrodes and getting power for the power amplifying tube to drive the load. An adjusting method lies in that adjustments are carried out according to voltage values specified on attached figures of the operation instruction to make a static current less than 20mA. A paired tube with high beta of 350 to 500 can be used as a drive tube. An intermediate power paired tube can serve as an exchange tube. A high-power paired tube is provided as the power amplifying tube.

Description

Technical field: [0001] The technical field to which this power amplifier belongs is: audio power amplifier circuit. This power amplifier uses But it can work like a symmetrical power amplifier powered by a dual power supply. It is a complete audio circuit that has never appeared before in any audio circuit at home and abroad. The so-called commutation-type symmetrical power amplifier refers to: when the audio signal is assumed to be positive growth, change the conduit BG 1 Conduction provides an energy path for the load. When the growth is negative, change the catheter GB 2 Turn on to provide an energy path for the load. Such exchange conduction, so that the two ends of the load are exchanged and the two poles of the power supply are turned on, and the power amplifier tube is used to push the load, so it is called a commutative symmetrical power amplifier. The current improvement plan is to add two high-precision resistors of equal resistance, R1 and R2, so that the preamplif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F3/20
Inventor 施少俊
Owner 施少俊
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