Litz Design
Typically, the design engineer requiring the use of Litz knows the operating frequency and RMS current required for the application. Since the primary benefit of a Litz conductor is thereduction of A.C. losses, the first consideration in any Litz design is the operating frequency. The operating frequency not only influences theactual Litz construction, but is also used to determine the individual wire gauge. Ratios of alternating-current resistance to direct-current resistance for an isolated solid round wire (H) in terms of a value (X) areshown in Table 1.