Improved Energy Management System for Low-Voltage, Low-Power Energy Harvesting Sources

[摘要] This paper focuses on improving the energy conversion process for low-voltage energy harvester powered wireless sensors by optimising the conversion stages for pulsed sensor operation. The proposed circuit has been designed to operate efficiently with both a low-voltage low-power energy harvester source and a low-power pulsed load. This ensures that continuous conversion losses are kept to a minimum and power is only delivered to the sensor when required. This has shown an increase in energy delivered to a sensor of up to 10% versus that of the best existing solution.

[发布机构] Power Electronics Research Centre, NUI Galway, Ireland^1

[效力级别] 能源学

[关键词] Conversion loss;Conversion process;Energy Harvester;Low voltages;Low-voltage Low-power;Pulsed load;Sensor operations;Wireless sensor