Inductor, inductor fabrication method, and power supply circuit containing inductor

Abstract

An inductor includes an encapsulation shell with an inductive component encapsulated inside; an input electrode exposed on a surface of the encapsulation shell and configured to receive an alternating voltage; an output electrode exposed on the surface of the encapsulation shell and configured to output a direct current voltage, where the input electrode and the output electrode are electrically isolated by the encapsulation shell; and a metal shield layer asymmetrically covering the surface of the encapsulation shell and electrically connected to the output electrode, where the metal shield layer keeps the input electrode electrically isolated from the output electrode. An inductor fabrication method and a power supply circuit containing an inductor are further provided to resolve prior-art problems such as small range and poor effect of electromagnetic shielding and potential instability of the inductor, thereby achieving a better electromagnetic shielding effect and keeping the potential of the inductor stable.

Dependencies are inferred from the claim text.