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本机为无变压器谐振充电电源,其主回路具有两级调压特点:即对母电容器电压进行交流调压,又对子电容器电压进行谐振充电强迫关断方式调压。由于工作电压在谐振电压极值附近,所以坛宽了整机电压调节范围和提高了充电效率。我们在类似固体激光脉冲电源的基础上,在对可控硅及其主回路元件无特殊要求的条件下,对电源主回路作了两级调压实验,并研制成样机。目前,对于提高电源的调压范围和充电效率的方案已有所报导。本文叙述的两级调压为主回路母子电容器上的电压调节,原理分别为可控硅交流调压和谐振充电强迫关断方式。第一级母电路器调压为坛宽电压调节范围。第二级子电容器调压为保证电源充电精度。为使母电容器和子电容器上的电压一一对应,线路上调压电位器采用同轴电位器调节,使两者同时改变电压,达到了电源要求。另外由于省掉了功率变压器,本机具有成本低,体积小,重量轻的优点,经重庆市科委鉴定后已应用于研究工作中。
The machine is transformerless resonant charging power supply, the main circuit has two levels of voltage regulation features: that is, the mother capacitor voltage AC voltage regulator, and sub-capacitor voltage resonant charge forced shutdown mode pressure. As the working voltage in the vicinity of the resonant voltage extremes, so the altar wide voltage regulation range and improve the charging efficiency. On the basis of similar solid-state laser pulse power supply, under the condition of no special requirement for thyristor and its main circuit components, we made two voltage regulation experiments on the main circuit of the power supply and developed the prototype. At present, the scheme for improving the voltage regulation range and the charging efficiency of the power supply has been reported. This article describes the two main regulator voltage regulator circuit voltage on the mother and son, the principle of thyristor AC voltage regulation and forced charging forced shutdown. The first level of the mother circuit voltage regulator to adjust the width of the altar. The second level of sub-capacitor voltage regulator to ensure the accuracy of power supply. In order to make the voltage on the mother capacitor and the sub-capacitor correspond one by one, the on-line voltage regulating potentiometer is adjusted by the coaxial potentiometer, so that the two simultaneously change the voltage and meet the power requirement. In addition due to save the power transformer, the machine has the advantages of low cost, small size, light weight advantages, identified by the Chongqing Municipal Science and Technology Commission has been applied to research work.