Inductive current is 90° out-of-phase from resistive current. A right triangle, called an impedance triangle, can be formed by drawing a hypotenuse between the resistance and inductive reactive ...

A specific example would be a UUT (Fig. 1) powered by a 48-V dc source. The UUT typically has a dc current sink with high ac impedance implemented by the UUT’s gyrator circuit. It also has a ...