Abstract
The present trend in power electronics is the increase of power density and the reduction of the size and cost of devices. It is now mandatory to find new solutions to reach high integration levels without decreasing the efficiency and by considering thermal issues. Recently, a new family of low-loss ferrites emerged for high frequency applications (>1 MHz). These ferrites are nickel-zinc-copper-cobalt spinel ferrites and can be favorably used in very compact high frequency SMPS (Switching Mode Power Supplies). This paper presents their magnetic properties in comparison with the state of the art of power ferrites.
