I have noticed there are many ferrite types, what do they mean and what is best for joule thief circuit?
For example:
FERRITE RING CORE, 6.3X3.8X2.5, N30
Ferrite Grade:N30
External Diameter:6.3mm
Internal Diameter:3.80mm
Ae Effective Cross Section Area:3.06mm²
Al Tolerance Value +:25%
Effective Magnetic Path Length:15.21mm
External Diameter:6.30mm
External Length / Height:2.5mm
Inductance Factor, Al:1090nH
Internal Diameter:3.80mm
Also does it matter how many windings I have some say 10 others 20, 50 etc.
Does it make sense to make more or it just changes frequency?
For example:
FERRITE RING CORE, 6.3X3.8X2.5, N30
Ferrite Grade:N30
External Diameter:6.3mm
Internal Diameter:3.80mm
Ae Effective Cross Section Area:3.06mm²
Al Tolerance Value +:25%
Effective Magnetic Path Length:15.21mm
External Diameter:6.30mm
External Length / Height:2.5mm
Inductance Factor, Al:1090nH
Internal Diameter:3.80mm
Also does it matter how many windings I have some say 10 others 20, 50 etc.
Does it make sense to make more or it just changes frequency?