Title :
Cost efficient mains powered supply concepts for wireless sensor nodes
Author_Institution :
Inst. of Comput. Technol., Univ. of Technol., Vienna, Austria
Abstract :
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.
Keywords :
power convertors; power supply circuits; wireless sensor networks; buck-boost converter concept; capacitive power supply; cost effiency; integration density; load efficiency; phase-dependent control circuit; power efficiency; powered supply; voltage 230 V; wireless sensor nodes; Bridge circuits; Capacitors; Inductors; Power generation; Power supplies; Rectifiers; Wireless sensor networks;
Conference_Titel :
Circuits and Systems (ISCAS), 2011 IEEE International Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4244-9473-6
Electronic_ISBN :
0271-4302
DOI :
10.1109/ISCAS.2011.5937612
