SMPS with zero standby power for electronic household equipment

Abstract

This paper presents a 6.8 W ac-dc Switch-mode Power Supply (SMPS) for electronic household equipment that enables the appliance to shut down automatically at the end of the working cycle and that consumes zero power (according to IEC62301 Clause 4.5) from the power line while in this "off-mode" condition. This functionality is realized by a specifically designed high-voltage switcher IC featuring the so-called "Zero-power function", which is applicable to other market segments too. An additional application example is provided.