Coil and inductance formula
Time:2022-06-18 Clicks:

The inductance calculated as follows: coil formula

Impedance (ohm) = 2 * 3.14159 * F (working frequency) * inductance (mH), setting required 360ohm impedance, and therefore:


Inductance (mH) = impedance (ohm) ÷ (2 * 3.14159) ÷ F (operating frequency) = 360 ÷ (2 * 3.14159) ÷ 7.06 = 8.116mH


Can be calculated accordingly wound coil:


Laps = inductance * {(18 * circle diameter (inches)) + (40 * Cycle Length (inches))}] ÷ circle diameter (inches)


Laps = 8.116 * {(18 * 2.047) + (40 * 3.74)}] ÷ 2.047 = 19 laps hollow inductance formula


Author: Anonymous Copy from: | Hits: 6684 article entry: zhaizl


Hollow inductance formula: L (mH) = (0.08DDNN) / (3D +9 W +10 H)


The D ------ coil diameter


N ------ coil turns


d ----- diameter


H ---- coil height


W ---- coil width


The units were mm and mH. .


Hollow coil inductance formula:


l = (0.01 * D * N * N) / (L / D +0.44)


The coil inductance l: microhenries


Coil diameter D unit: cm


N: turn coil turns


Coil length L units: cm


Frequency inductance and capacitance formula:


l = 25330.3 / [(f0 * f0) * c]


Operating frequency: f0 units: MHZ for this question f0 = 125KHZ = 0.125


Resonant capacitance: c units: the PF this question built-defined c = 500 ... 1000pf own decisions, or by Q


Value determines


: L Unit: microhenry, of the resonant inductor


Coil inductance formula


Author: coil inductance calculation formula posted from: reproduced Hits: 299


1. For ring line the CORE, the following formula can be used: (IRON)


L = N2. ALL = inductance value (H)


H-DC = 0.4πNI/lN = number of turns (circle)


AL = inductance


H-DC = DC magnetizing force I = current (A)


l = magnetic circuit length (cm)


l and AL value size reference the Microl control table.