TY - GEN
T1 - Reconfigurable 96×128 active pixel sensor with 2.1μW/mm2 power generation and regulated multi-domain power delivery for self-powered imaging
AU - Ahmed, Khondker Zakir
AU - Amir, Mohammad Faisal
AU - Ko, Jong Hwan
AU - Mukhopadhyay, Saibal
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/10/18
Y1 - 2016/10/18
N2 - We present an energy harvesting system comprising a dual purpose CMOS active pixel sensor (APS) array, and a combined energy extractor and multi domain voltage regulator on a single die in 130nm technology. The reconfigurable image sensor is a 128 × 96 pixel array. The array captures image and is reconfigured to form an on-chip photovoltaic cell to harvest energy. It generates 2.1μW peak power at 300mV with 200klux illuminance. The generated voltage is used as the input of the switching energy extractor that boosts the voltage up to 3.3V and stores the energy in the storage element (battery/super capacitor). The stored energy is then supplied to the load at three independent domains using the single inductor multi-output (SIMO) buck regulator. Both the SIMO buck and the energy-harvesting boost use the only inductor in the system through internally managed time-multiplexing mechanism. This prototype demonstrates a solution for low frame rate, energy autonomous imaging applications including distributed wireless sensor node and IoT electronics.
AB - We present an energy harvesting system comprising a dual purpose CMOS active pixel sensor (APS) array, and a combined energy extractor and multi domain voltage regulator on a single die in 130nm technology. The reconfigurable image sensor is a 128 × 96 pixel array. The array captures image and is reconfigured to form an on-chip photovoltaic cell to harvest energy. It generates 2.1μW peak power at 300mV with 200klux illuminance. The generated voltage is used as the input of the switching energy extractor that boosts the voltage up to 3.3V and stores the energy in the storage element (battery/super capacitor). The stored energy is then supplied to the load at three independent domains using the single inductor multi-output (SIMO) buck regulator. Both the SIMO buck and the energy-harvesting boost use the only inductor in the system through internally managed time-multiplexing mechanism. This prototype demonstrates a solution for low frame rate, energy autonomous imaging applications including distributed wireless sensor node and IoT electronics.
KW - Energy Harvesting
KW - Mutli-domain power delivery for IoT
KW - On-Chip Photovoltaic Cell
KW - PFM mode Switching Regulator
KW - Single Inductor Multi-Output Buck
UR - https://www.scopus.com/pages/publications/84994469058
U2 - 10.1109/ESSCIRC.2016.7598352
DO - 10.1109/ESSCIRC.2016.7598352
M3 - Conference contribution
AN - SCOPUS:84994469058
T3 - European Solid-State Circuits Conference
SP - 507
EP - 510
BT - ESSCIRC 2016
PB - IEEE Computer Society
T2 - 42nd European Solid-State Circuits Conference, ESSCIRC 2016
Y2 - 12 September 2016 through 15 September 2016
ER -
