Title :
Efficient Power Management Circuit: From Thermal Energy Harvesting to Above-IC Microbattery Energy Storage
Author :
Lhermet, Hélène ; Condemine, Cyril ; Plissonnier, Marc ; Salot, Raphaël ; Audebert, Patrick ; Rosset, Marion
Abstract :
An autonomous power generator unit including two micropower sources and their management IC has been fabricated: a RF power receiver and a 1 V miniature thermogenerator combined with a micropower DC/DC up-converter are combined with a 78% efficiency manager and charger, and a 5 nW discharge monitor to manage and store the harvested energy in a 30 above-IC deposited microbattery.
Keywords :
low-power electronics; secondary cells; thermoelectric conversion; RF power receiver; above-IC microbattery energy storage; autonomous power generator; efficiency 78 percent; micropower DC/DC up-converter; miniature thermogenerator; power 5 nW; power management circuit; thermal energy harvesting; voltage 1 V; Circuits; Energy management; Energy storage; Monitoring; Power generation; Radio frequency; Temperature; Thermal management; Thermoelectricity; Wireless sensor networks; Autonomous microsystem; energy harvesting; microbattery; power management integrated circuit; thermogenerator;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2007.914725
