Reflected Impedance Transformer Formula. Reflected impedance compute the load impedance z ld of the circuit in figure 1. Let z ld r ld jx ld.
Then we can express 9 73 as. Z sub ref re z sub ref omega m sub 1 m sub 2 r sub w which means that the imaginary part is zero. If the transformer circuit was replaced by a single equivalent load then by ohm s law this would be equal to 100v 0 1a 1000 ohms.
For example if we want to impedance match across two strings with different mass densities µ1 and µ2 we can choose the tensions to be t2 µ1 µ2 t1 so that z2 t2µ2 µ1 µ2 t1µ2 r t1µ1 z1 28 thus the impedances can agree in strings of different mass density.
V r v i displaystyle v mathrm r v mathrm i. For the above circuit what can we say about the transformer turns ratio or reflected impedance to obtain maximum power transfer. For instance if either dot in the transformer of the previous page is placed on the opposite terminal the sign of the mutual term changes from m to. V r v i displaystyle v mathrm r v mathrm i.
