what is the equation for the number of wire turns in a system consists of two co-axial transformer
what is the equation for the number of wire turns in a system consists of two co-axial transformer
(OP)
I have a coaxial transformer coils in order to transfer the power in a wireless manner. I would like to know for a certain power, voltage and frequency how many turns of wire each coil needs. Assume the followings:
Power= 1 W
Voltage= 5 V
Frequency= 300 KHz
Number for turns=???
Also, I have attached the dimensions for the coils. There is a 0.02" air gap between two coils.
Power= 1 W
Voltage= 5 V
Frequency= 300 KHz
Number for turns=???
Also, I have attached the dimensions for the coils. There is a 0.02" air gap between two coils.





RE: what is the equation for the number of wire turns in a system consists of two co-axial transformer
I'm a little fuzzy on how you intend to wind the coils, particularly the outer one. ... but since you have shown zero coil detail, maybe I am misinterpreting what you failed to include in your drawing.
Mike Halloran
Pembroke Pines, FL, USA
RE: what is the equation for the number of wire turns in a system consists of two co-axial transformer
RE: what is the equation for the number of wire turns in a system consists of two co-axial transformer
IIRC, the old rule of thumb was to aim for enough inductance to provide an input Z under open circuit secondary conditions of at least ten times the normal operating load.
Disclaimer - this from memory, so double check.
RE: what is the equation for the number of wire turns in a system consists of two co-axial transformer