High-Frequency Integrated Point-of-Load (POL) Module with PCB Embedded Inductor Substrate

Description:

This innovation presents the high frequency integrated Point-of-Load (POL) module with PCB embedded inductor substrate. First, the high density and low profile inductor structure is proposed so that the magnetic core can become a thin enough layer to be sandwiched into multi-layer PCB. Then the magnetic layer is embedded into PCB just following conventional industrial process. The four-layer PCB and DrMos power devices are used to build the integrated POL module which is very simple and cost effective. The standardized manufacturing process further reduces the cost and enables the mass production of such kinds of PCB integrated POL modules.