I am wondering about a few transformer questions
1) say you have a transformer for example one that is 120vac to 12.6vac 60hz 300mA (i.e stepdown transformer)
What happens if you where to use the same voltages with it i.e 120vac for primary and 12.6vac for secondary but you used a different frequency other then 60hz say 2000hz ,...or whatever .... How would this effect the transformer would it lessen the output voltage/current or would it damage the transformer ....etc??? Curious what would happen...
(and how to mathematically figure out what is going to be the voltage/current ...etc with this new frequency we can assume it the transformer is ideal or air cored if you want)
2) say you have a transformer that doesn't give you the coil ratio or the input voltage or output voltage.... It just gives you input is 1kohm+-10%
output 8ohms (loaded) , and impedance 1kHz , 1V, 0mADC
Is their anyway of finding out the coil ratio , input/output voltage/current , and what frequency range you could use this transformer at?
My thoughts for question one would be based on the inductive reactance calculations of the primary or secondary coil wL as current flows at a faster frequency this would induce a stronger magnetic field and that strong magnetic field would resist current change more....etc ( have stronger reactance)
But I am not positive I got the full picture ...etc?
My thoughts for question two is somehow use the approximation that
Pin = Pout (the ideal transformer ) and the fact that P=VI , V=IZ
so P = I^2*Z or V^2/Z where Z is the 1kohm reactance ,...etc
But ofcourse you only have the 2 reactances and 2 unknown voltages or currents so you would have to at least known the input voltage or current and then you could solve for the missing one.... not really sure if this is the math that accurately would describe it but it seems plausible...?
Thanks for any help
1) say you have a transformer for example one that is 120vac to 12.6vac 60hz 300mA (i.e stepdown transformer)
What happens if you where to use the same voltages with it i.e 120vac for primary and 12.6vac for secondary but you used a different frequency other then 60hz say 2000hz ,...or whatever .... How would this effect the transformer would it lessen the output voltage/current or would it damage the transformer ....etc??? Curious what would happen...
(and how to mathematically figure out what is going to be the voltage/current ...etc with this new frequency we can assume it the transformer is ideal or air cored if you want)
2) say you have a transformer that doesn't give you the coil ratio or the input voltage or output voltage.... It just gives you input is 1kohm+-10%
output 8ohms (loaded) , and impedance 1kHz , 1V, 0mADC
Is their anyway of finding out the coil ratio , input/output voltage/current , and what frequency range you could use this transformer at?
My thoughts for question one would be based on the inductive reactance calculations of the primary or secondary coil wL as current flows at a faster frequency this would induce a stronger magnetic field and that strong magnetic field would resist current change more....etc ( have stronger reactance)
But I am not positive I got the full picture ...etc?
My thoughts for question two is somehow use the approximation that
Pin = Pout (the ideal transformer ) and the fact that P=VI , V=IZ
so P = I^2*Z or V^2/Z where Z is the 1kohm reactance ,...etc
But ofcourse you only have the 2 reactances and 2 unknown voltages or currents so you would have to at least known the input voltage or current and then you could solve for the missing one.... not really sure if this is the math that accurately would describe it but it seems plausible...?
Thanks for any help
Last edited: