The advantages of planar transformers over wire-wound

摘要

The difference that planar transformers allow over traditional wire-wound transformers is the planar's use of flat copper windings or lead frames. While the windings of wire-wound transformers are used with round wire, the planar's windings are built by utilising flat copper layers (PCBs) or plated flat copper windings (lead frames) to create a laminate-style winding construction. The result is a compact, high power density planar transformer that is typically 30% of the volume and weight of a traditional wire-wound transformer.