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Power synthesis technology device of low-frequency amplifier

A technology of amplifiers and power amplifiers, applied in the direction of power amplifiers, etc., can solve the problems of high power and high circuit design requirements, and achieve the effects of reducing repeated design, saving costs, and convenient modular design

Active Publication Date: 2013-04-03
NINGBO MINGKE ELECTROMECHANICAL
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, on some equipment (sonar), the required input power will be very large (KW level). If you only choose the above three power amplifiers, it seems a bit inappropriate. The design requirements of the circuit and high

Method used

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  • Power synthesis technology device of low-frequency amplifier
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  • Power synthesis technology device of low-frequency amplifier

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Embodiment Construction

[0016] The present invention will be described in detail below in conjunction with accompanying drawing:

[0017] Such as image 3 As shown, the present invention solves the synthetic problem of this high power, mainly is made up of power amplifier group, capacitor group and isolation transformer group, and described power amplifier group is made of AMP2, AMP3...AMPn power amplifier; Described isolation transformer group It is composed of T1, T2...Tn isolation transformers; the capacitor group is composed of C1, C2...Cn capacitors, the power amplifier group is connected to the isolation transformer group through the capacitor group, and the isolation transformer group is connected to the output impedance converter. The power amplifier group is connected to the amplifier AMP1, which is a one-to-one follower circuit for setting the total input impedance of the amplifier.

[0018] The AMP2, AMP3...AMPn power amplifiers are connected to the C1, C2...Cn capacitors in one-to-one co...

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Abstract

The invention relates to a power synthesis technology device of a low-frequency amplifier. The device comprises a power amplifier set, a capacitor set and an isolation transformer set, wherein the power amplifier set comprises power amplifiers from AMP2 to AMPn; the isolation transformer set comprises isolation transformers from T1 to Tn; the capacitor set comprises capacitors from C1 to Cn; the power amplifier set is connected with the isolation transformer set through the capacitor set; the isolation transformer set is connected with an output impedance transformer Rx; and the power amplifier set is connected with a power amplifier AMP1. The invention has the advantages that all the power amplifiers independently output; if a path of amplifiers has abnormality, the path of amplifiers is automatically closed, the output of the path is subjected to a short circuit, and the amplifiers still can normally work; during maintaining, the path is changed, thus the repeated design of the amplifiers of the same type can be reduced, thereby the cost is saved, and the modular design of the power amplifiers is realized; and the device is convenient to produce.

Description

technical field [0001] The invention relates to the field of amplifier power synthesis, and mainly relates to a low-frequency amplifier power synthesis technology device for increasing the output power of a power amplifier. Background technique [0002] Electronic technology has developed by leaps and bounds in recent decades, and more and more digital technologies have replaced analog electronic technology. Some people once said that analog electronic technology will withdraw from the stage of electronic technology. In recent years, people have become more and more aware of analog electronic technology, and many places cannot do without it, especially in the power amplification of AC signals. In recent years, domestic low-frequency amplifier technology has also become more and more mature. At present, there are triode emitters or FET source parallel push-pull outputs (OCL power amplifiers), which use BTL amplifier circuits to increase output power and improve amplifier effi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03F3/20
Inventor 王耀丁昂陈敏杰张延松黄荣胡耀辉
Owner NINGBO MINGKE ELECTROMECHANICAL
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