This paper presents the nanopower design of an integrated 1 μW-to-5 mW power management circuit. The circuit integrates a boost converter with maximum power point tracking, a low drop-out voltage regulator (LDO), and a start-up circuit for battery-less activation from discharged states. The IC implements a dynamic two-way power routing policy that ensures a fast start-up from discharged states even with very large energy storage capacitors. In order to reduce the intrinsic power, asynchronous control logic was adopted. The circuit was implemented in a STMicroelectronics 0.32 μm microelectronic technology. The power conversion section and the LDO draw respectively stand-by currents of 121 nA and 414 nA in the active modes. The circuit achieves a peak conversion efficiency of 77.1% and a minimum start-up voltage of 223 mV.

A Nanocurrent Power Management IC for Low-Voltage Energy Harvesting Sources / Dini, M.; Romani, A.; Filippi, M.; Tartagni, M.. - In: IEEE TRANSACTIONS ON POWER ELECTRONICS. - ISSN 0885-8993. - STAMPA. - 31:6(2016), pp. 7222461.4292-7222461.4304. [10.1109/TPEL.2015.2472480]

A Nanocurrent Power Management IC for Low-Voltage Energy Harvesting Sources

DINI, MICHELE;ROMANI, ALDO;FILIPPI, MATTEO;TARTAGNI, MARCO
2016

Abstract

This paper presents the nanopower design of an integrated 1 μW-to-5 mW power management circuit. The circuit integrates a boost converter with maximum power point tracking, a low drop-out voltage regulator (LDO), and a start-up circuit for battery-less activation from discharged states. The IC implements a dynamic two-way power routing policy that ensures a fast start-up from discharged states even with very large energy storage capacitors. In order to reduce the intrinsic power, asynchronous control logic was adopted. The circuit was implemented in a STMicroelectronics 0.32 μm microelectronic technology. The power conversion section and the LDO draw respectively stand-by currents of 121 nA and 414 nA in the active modes. The circuit achieves a peak conversion efficiency of 77.1% and a minimum start-up voltage of 223 mV.
2016
A Nanocurrent Power Management IC for Low-Voltage Energy Harvesting Sources / Dini, M.; Romani, A.; Filippi, M.; Tartagni, M.. - In: IEEE TRANSACTIONS ON POWER ELECTRONICS. - ISSN 0885-8993. - STAMPA. - 31:6(2016), pp. 7222461.4292-7222461.4304. [10.1109/TPEL.2015.2472480]
Dini, M.; Romani, A.; Filippi, M.; Tartagni, M.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/521672
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