Title :
A 150mV-1.2V fully-integrated DC-DC converter for Thermal Energy Harvesting
Author :
Bassi, Giovanni ; Colalongo, Luigi ; Richelli, Anna ; Kovács-Vajna, Zsolt
Author_Institution :
Dept. of Inf. Eng., Univ. of Brescia, Brescia, Italy
Abstract :
A fully-integrated DC/DC converter for energy harvesting applications is presented. The startup-voltage of the converter is about 140mV, the output voltage exceeds 1.5V, with a power efficiency at least 20%. The architecture for boosting such extremely low voltages is based on an ultra-low-voltage oscillator cross connected to two phase charge pump. The overall circuit does not require any external components and can be fully integrated in a standard CMOS low voltage technology. A test-chip has been designed in UMC 0.18μm process.
Keywords :
CMOS analogue integrated circuits; DC-DC power convertors; charge pump circuits; energy harvesting; oscillators; UMC process; fully-integrated DC-DC converter; power efficiency; size 0.18 mum; standard CMOS low voltage technology; test-chip; thermal energy harvesting; two phase charge pump; ultralow-voltage oscillator; voltage 150 mV to 1.2 V; Charge pumps; DC-DC power converters; Energy harvesting; Inductors; Integrated circuit modeling; Low voltage; Oscillators;
Conference_Titel :
Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2012 International Symposium on
Conference_Location :
Sorrento
Print_ISBN :
978-1-4673-1299-8
DOI :
10.1109/SPEEDAM.2012.6264597
