Calculation formula for hollow inductance

First make a small cylinder with a sheet, and then wind the inductor coil on the cylinder to make hollow inductance. Hollow inductance calculation formula: L (MH) = (0.08d.d.n.n) / (3D + 9W + 10h) D ------ Coil diameter N ------ Coil turns D ----- line diameter H ---- Coil height W ---- coil width The unit is mm and MH, respectively. . Hollow coil inductance calculation formula: L = (0.01 * d * n * n) / (L / D + 0.44) Coil inductance L unit: 微 亨 Coil diameter D unit: cm Coil turns N unit: Coil length L Unit: cm Frequency inductor capacitor calculation formula: L = 25330.3 / [(f0 * f0) * c] Working frequency: f0 unit: MHz this question f0 = 125kHz = 0.125 Resonant capacitor: C unit f This question c = 500 ... 1000pf can be decided first, or by Q Value decision Resonant Polymerapers: L Unit: Weather Cooperative calculation formula Hollow coil inductor calculates an empirical formula: L = (k * μ0 * μs * n2 * s) / l μ0 is vacuum magnetocanthe = 4π * 10 ^ (- 7). (10 of the negative seven) μs is the relative magnetic thermal conductivity of the internal core of the coil, the hollow coil is the cross-sectional area of ​​the square S coil of the coil ring, and the unit is the length of the square L coil, the unit is The rice K coefficient depends on the ratio of the radius (R) and length (L) of the coil. The calculated unit of inductance is Henry. K value table 2R / L K 0.1 0.96, technology area On Mu, the SiC, GaN, and Three Levels brought by Siqiang reach your efficiency. How to prevent switching power supply noise by using secondary output filters Ceramic vertical mount package (CVMP) welding precautions and layout Mathematical modeling and loop compensation design of DC-DC converters What are the commonly used benchmark regulated power?

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