Vraag over een ringkerntje (Gezocht)

door Oldtimer , Oegstgeest, 30-09-2020, 13:42 (1523 dagen geleden) @ kris

standaard voor Al is L in milliHenry, tenzij anders opgegeven.

Gepikt van het WWW:

The AL factor is based on a specific number of turns for a given inductance.
The equation for powdered-iron cores is:

eq 1

where N = number of turns LµH = required inductance AL = specified value for the core being used.

Ferrite-core inductances are calculated from:

eq 2

You may use Eq 2 for microhenry values by retaining the 1000 factor and converting microhenrys to millihenrys. For example, if you want to wind a 100-µH coil on a ferrite toroid, use 0.1 mH in Eq 2 for the desired 100-11H value. Similarly, should you need a 10-µH inductor, use 0.01 mH in Eq. 2. The Amidon catalog contains AL factors for ferrite and powdered-iron toroids.

Willem