TY - GEN
T1 - Efficiency of Passive Magnetic Energy Harvesters Operating Under High Primary Currents
AU - Siton, Yarden
AU - Abramovitz, Alexander
AU - Shvartsas, Moshe
AU - Sitbon, Moshe
AU - Orfanoudakis, Georgios I.
AU - Kuperman, Alon
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024/1/1
Y1 - 2024/1/1
N2 - Magnetic energy harvesters (MEHs) are highly reliable devices employed to supply low-power DC loads from high AC current carrying conductors. Recent literature provided means for estimating the input power of a MEH feeding a constant voltage load (CVL) via an uncontrolled rectifier. The goal of the paper is to quantify the different types of losses and thus the conversion efficiency and output power of clamped-type MEHs. Analytical expressions for losses in the magnetic core, secondary winding, and rectifier diodes are developed, in relation to circuit variables. It is shown that the total losses can be considerable, leading to an efficiency in the order of 83%. The analytical predictions demonstrate close resemblance with corresponding results obtained by a passive MEH harvesting ~218 W from a conductor carrying 200 - 300 ARMS.
AB - Magnetic energy harvesters (MEHs) are highly reliable devices employed to supply low-power DC loads from high AC current carrying conductors. Recent literature provided means for estimating the input power of a MEH feeding a constant voltage load (CVL) via an uncontrolled rectifier. The goal of the paper is to quantify the different types of losses and thus the conversion efficiency and output power of clamped-type MEHs. Analytical expressions for losses in the magnetic core, secondary winding, and rectifier diodes are developed, in relation to circuit variables. It is shown that the total losses can be considerable, leading to an efficiency in the order of 83%. The analytical predictions demonstrate close resemblance with corresponding results obtained by a passive MEH harvesting ~218 W from a conductor carrying 200 - 300 ARMS.
KW - conduction losses
KW - efficiency
KW - magnetic energy harvester
KW - magnetic losses
KW - passive rectifier
UR - http://www.scopus.com/inward/record.url?scp=85209915448&partnerID=8YFLogxK
U2 - 10.1109/PEMC61721.2024.10726419
DO - 10.1109/PEMC61721.2024.10726419
M3 - Conference contribution
AN - SCOPUS:85209915448
T3 - 2024 IEEE 21st International Power Electronics and Motion Control Conference, PEMC 2024
BT - 2024 IEEE 21st International Power Electronics and Motion Control Conference, PEMC 2024
PB - Institute of Electrical and Electronics Engineers
T2 - 21st IEEE International Power Electronics and Motion Control Conference, PEMC 2024
Y2 - 30 September 2024 through 3 October 2024
ER -