A Self-Biasing Pulsed Depressed Collector
A Self-Biasing Pulsed Depressed Collector
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DOI：
10.1109/ted.2014.2300011
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发表时间：
2014-01
影响因子：
3.1
通讯作者：
M. Kemp;A. Jensen;J. Neilson
中科院分区：
文献类型：
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作者：
M. Kemp;A. Jensen;J. Neilson
多年来，压抑式集热器已被成功地用于提高真空电子器件的电效率。脉冲、峰值功率加速器的应用越来越重视电效率。由于射频系统在加速器实验室的总能量使用中占很大比例，因此需要改进脉冲高功率源的最新技术。本文介绍了多级降压集热器中各级的自偏置技术。利用这种技术，可以恢复脉冲上升和下降期间损失的能量，不需要单独的电源，并且可以对现有的调制器进行改造。计算表明，在大功率系统中应用该器件可显著节省成本。本文介绍了该技术，并进行了实验验证。
Depressed collectors have been utilized successfully for many years to improve the electrical efficiency of vacuum electron devices. Increasingly, pulsed, high-peak power accelerator applications are placing a premium on electrical efficiency. As RF systems are responsible for a large percentage of the overall energy usage at accelerator laboratories, methods to improve upon the state-of-the-art in pulsed high-power sources are desired. This paper presents a technique for self-biasing the stages in a multistage depressed collector. With this technique, the energy lost during the rise and fall times of the pulse can be recovered, separate power supplies are not needed, and existing modulators can be retrofitted. Calculations show that significant cost savings can be realized with the implementation of this device in high-power systems. In this paper, the technique is described along with experimental demonstration.