紧凑型Tesla变压器次级电容的计算

给出了紧凑型Tesla变压器次级电容的近似解析表达式，计算结果表明，紧凑型Tesla变压器的次级电容主要由内外筒之间的电容和次级线圈引入的附加电容组成。附加电容的值约等于一段与次级线圈长度相同的同轴线电容，该同轴线的内外径与变压器内外筒直径相同。建立了一个分析Tesla变压器的电路模型，利用数值方法验证了解析计算方法的正确性。研制了一个小型Tesla变压器，进行了相关实验，实验结果与计算结果一致。

Calculation of secondary capacitance of compact Tesla pulse transformer

An analytic expression of the secondary capacitance of a compact Tesla pulse transformer is derived. Calculated result by the expression shows that two parts contribute to the secondary capacitance, namely the capacitance between inner and outer magnetic cores and the attached capacitance caused by the secondary winding. The attached capacitance equals to the capacitance of  a coaxial line which is as long as the secondary coil, and whose outer and inner diameters are as large as the inner diameter of the outer magnetic and the outer diameter of the inner magnetic core respectively. A circuital model for analyzing compact Tesla transformer is built, and numeric calculation shows that the expression of the secondary capacitance is correct. Besides, a small compact Tesla transformer is developed, and related test is carried out. Test result confirms the calculated results by the expression derived.