利用栅极电压整形新原理提高E类管功率放大器效率

2016 International Conference on Actual Problems of Electron Devices Engineering (APEDE) Pub Date : 2016-09-01 DOI:10.1109/APEDE.2016.7878866

I. V. Sivchek, V. Sorotsky

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引用次数: 0

摘要

介绍了提高大功率无线电发射机输出级电子管E类功率放大器效率的方法。在E级模式下移动PA使阳极效率达到88…93%。同时导致控制栅极和屏蔽栅极的耗散功率成为阻碍栅极特性进一步提高的主要因素之一。将一定参数的多电平电压应用于控制和屏蔽电网，可以解决这一问题。它可以提高阳极效率或输出功率。给出了建议的电网电压形状及其相关的PA特性的示例。

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Improvement of class E tube power amplifiers efficiency using new principles of grid voltages shaping

The paper covers the ways of improving the efficiency of a tube Class E power amplifiers (PA) used in the output stage of high-power radio transmitters. Shifting PA in class E mode enabled to achieve anode efficiency of 88…93%. At the same time it led to a result that control and screen grid dissipated power in tetrode became one of the main factors hindering further improvement of PA characteristics. This problem can be solved by applying to the control and screen grids multilevel voltage with a certain parameters. It enables to increase either the anode efficiency or the output power. The examples of suggested grid voltage shapes and related to them PA characteristics are provided.

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2016 International Conference on Actual Problems of Electron Devices Engineering (APEDE)

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