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本文简略叙述最近被称为“调谐贮能器(Tuned Energy Storage)”的理论及其应用。该技术可大大减少对储能的需要,使得固态发射机的重量显著减轻。虽然此技术是为固态射频系统开发的,它也可以应用在栅极调制的真空管系统里。这种新的电路技术与传统的调制器及仿真线技术没有太大关联,它用在固态放大器中,能克服线性调制器的缺点。它用电抗性网络贮能,和射频放大器共同产生一个合适的工作电压,同时也补偿了电容器电压的下降。这样做不需要大电流电子开关,对脉宽的捷变也没有限制,而这些却是传统仿真线无法做到的。这个电抗性网络并不完全确定脉冲形状或限制脉宽;直流和射频脉冲仅仅是由加到功率放大器的射频激励脉冲来控制的。网络和充电系统能与缩短的脉冲完全相适应。只要求再充电时间比长脉冲宽度的短一些。采用计算机分析和优化设计可以获得最平坦的脉冲顶部及最轻的电容器重量。制成的几个装置证明了理论和结果完全一致,例如:一个工作在超轻型18kW固态超高频功率组件里有一对600A网络。与原先的电容贮能器比较,这种电路的电容量减小到原先的1/7,重量减小到原先的1/5。
This article briefly describes the theory and its application recently called Tuned Energy Storage. This technique greatly reduces the need for energy storage, resulting in a significant reduction in the weight of the solid-state transmitter. Although developed for solid-state RF systems, it can also be used in gate-modulated vacuum tube systems. This new circuit technology and traditional modulator and simulation wire technology is not much correlation, it is used in solid-state amplifiers, to overcome the shortcomings of the linear modulator. It uses a reactive network to store energy, and RF amplifiers together to produce a suitable operating voltage, but also to compensate for the capacitor voltage drop. This does not require large current electronic switches, there is no limit on the pulse width of the agile, but these are the traditional simulation line can not be done. This reactive network does not completely determine the pulse shape or limit the pulse width; DC and RF pulses are only controlled by RF excitation pulses applied to the power amplifier. Network and charging system can be fully compatible with shortened pulses. Only require recharging time shorter than the long pulse width. The most flat pulse top and the lightest capacitor weight are obtained using computer analysis and optimized design. Several devices were made to prove that the theory and results are exactly the same, for example: A working 600A network in an ultra-light 18kW solid-state UHF power module. Compared with the original capacitor energy storage, this circuit reduces the capacity of the original 1/7, the weight is reduced to the original 1/5.