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DC-DC switching converter as on-field self energy meter | IEEE Conference Publication | IEEE Xplore

DC-DC switching converter as on-field self energy meter


Abstract:

A DC-DC switching converter, originally included to reduce the power consumption of a Wireless Sensor Networks (WSN) node, has been proposed as the core of an on-field se...Show More

Abstract:

A DC-DC switching converter, originally included to reduce the power consumption of a Wireless Sensor Networks (WSN) node, has been proposed as the core of an on-field self-energy meter. In this paper we present a method and circuit that improves the electronics proposed by previous work by conditioning the signal from the switching converter that is connected to the microcontroller's counter. A software module that allows a WSN node to measure its own charge and current consumption was also implemented. The proposed method allows to measure the current consumption in a wide range, from 0 to 30mA, is highly linear and is ultra-low-power (the maximum current consumption is 8μA). Finally, we present a case study in which the proposed method is used to power profile a WSN node. Results show that a time-based estimation (Energest) overestimates the Clear Channel Assessment consumption for more than 10%.
Date of Conference: 28 February 2016 - 02 March 2016
Date Added to IEEE Xplore: 14 April 2016
ISBN Information:
Conference Location: Florianopolis, Brazil

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