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Coil and inductance formula

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.