Technical Bulletin – April 2019

Thermal Considerations for the Application of Power Converters

Introduction

One of the first questions one should ask themselves when selecting an appropriate AC/DC power supply for a given application is what sort of environment that device will be expected to operate in. A power supply that is intended to spend its operational life on the floor of an office cubical will clearly be subject to a different set of design considerations then one that is intended to potted into an enclosure and mounted to the side of an industrial irrigator for instance. Many physical properties of circuit elements and the media that surround them are functions of environmental factors such as ambient temperature, air pressure, humidity, pollution degree, etc. Accordingly, the behavior of a given power electronics network is expected to change as its surrounding environment changes.  Read more (view pdf) >>

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