Applicability of Dickson Charge Pump in Energy Harvesting Systems: Experimental Validation of Energy Harvesting Charge Pump Model (CROSBI ID 253430)
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Vinko, Davor
engleski
Applicability of Dickson Charge Pump in Energy Harvesting Systems: Experimental Validation of Energy Harvesting Charge Pump Model
Energy harvesting methods provide very low instantaneous power. Accordingl y, available voltage levels are low and must be increased so that an energy harvest- ing method can be used as a power supply. One approach uses charge pumps to boost low AC voltage from energy harvester to a higher DC voltage. Characterized by very low output current and a wide span of operating frequen- cies, energy harvesting methods introduce a number of limitations to charge pump operation. This paper describes and models behavior of Dickson charge pump in energy harvesting applications. Proposed Energy Harvesting model is evaluated and compared with Standard and Tan- zawa charge pump models and with measurement results. Based on the proposed model, the conditions that need to be satisfied so that a charge pump can reach maximum power point of energy harvesting system are defined. Pa- rameter selection method optimized for maximum power point is presented and is experimentally validated.
Charge pumps ; energy harvesting ; circuit analysis ; mathematical model ; maximum power poin
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