Author(s):  Lukasch, Franz;

This paper presents and evaluates different power supply concepts for powering wireless sensor nodes directly from 230VAC mains. The main focus is to find a suitable concept in terms of cost- and power efficiency, which allows for high integration density. The most promising architectures are a capacitive power supply concept and a buck-boost converter
concept with an advanced phase-dependent control circuit. Innovative extensions to common solutions are presented and discussed for an output power range of up to 100mW with special respect to light load efficiency.

Publication Date:  2011/05/15
Location of Publication:  IEEE International Symposium on Circuits and System, Rio De Janeiro, Brasil
Keyword(s):  Energy Efficiency; Hardware Physical Design; Hardware Logic Design;