Composants haut-parkeur Composants
haut-parkeur
Bobines Introduction Bobines
Introduction
Selfs par inductance Selfs par
inductance
Audaphon selfs Audaphon
selfs
Mundorf selfs à air Mundorf
selfs à air
Selfs avec fils vernis Selfs avec
fils vernis
Hepta Tresse Bobines Hepta Tresse Bobines
Bobines à film de cuivre Bobines à
film de cuivre
Bobines  VLCU Bobines
VLCU
Selfs à air argent et or Selfs à air
argent et or
Noyau P bobines Noyau P
bobines
Noyau H bobines Noyau H
bobines
Mundorf ferron i/BS Mundorf ferron i/BS
Mundorf transformateur Mundorf
transformateur
Bobine Zero Ohm Bobine
Zero Ohm
Duelund selfs Duelund
selfs
Jantzen Wax selfs Jantzen Wax
selfs
Visaton selfs Visaton
selfs
Le self Le self
Calculateur de self Calculateur de self

 

Calculator for Coils

Coil Calculator Resistance with 2 decimals
Please enter decimal separator as "."
Frequency in Hz: Inductance in mH: Impedance in Ohm:
further hint: Please choose a coil with adequate load-carrying ability.
© Iris Strassacker, 2002. All rights reserved - Warranty excluded
Air core coil power estimator Maximum power drain for coils
Please enter decimal separator as "."
Coil data, copper coil dimensions   Bass driver
Length in cm: Diameter in cm: Coil resistance in Ohm: Impedance in Ohm:
 
The coil, placed before a bass driver, is suitable for a power of up to: Watt
Important hints:
Dimensions refer to that part that gets as hot as the copper coil itself and, therefore, dissipates heat optimally. All values indicated are just a guidance and cannot be guaranteed. They were, however, results of around 100 long-term measurements over 24 hours each. The values are valid for coils with free air convection. If convection is perfect and temperature is 20°C the coil is able to transmit up to 50% more.

These values are only valid for core coils under the condition that they don't generate any additional heat through magnetisation loss (like with Corobar coils).
© Iris Strassacker, 2002. All rights reserved - Warranty excluded

If two coils L1 and L2 are in parallel, then Lges = (L1 * L2) / (L1 + L2)

Coils in parallel Please enter decimal separator as "."
L1 = mH and L2 = mH   Lges = mH
© Iris Strassacker, 2002. All rights reserved - Warranty excluded

If two coils L1 and L2 are in series, then their inductance is added up.

Coils in series Please enter decimal separator as "."
L1 = mH and L2 = mH   Lges = mH
© Iris Strassacker, 2002. All rights reserved - Warranty excluded

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