MPL-SE4030-470

Engineers often disagree on whether the inductive bottom of DC/DC power supplies should be laid with copper. The first argument is that laying copper under the inductor produces eddy currents on the ground plane. As a result, the eddy current affects the power inductor’s inductance and increases the system loss, and the ground plane noise impacts other high-speed signals. The second argument is th...

An inductor is an important component of a DC/DC power supply. There are many considerations to make when choosing an inductor, such as inductance value, DCR, size, and saturation current. The saturation behavior of the inductor is often misunderstood and can be troublesome. This article will address how inductors become saturated, how saturation affects the circuit, and methods to detect inductor...