TY - GEN
T1 - On the association of power-flow with circuit terminals
AU - Ivrlač, M. T.
AU - Nossek, J. A.
PY - 2011
Y1 - 2011
N2 - In classical circuit theory, the question of how much power flows into a circuit through a set of terminals only makes sense if these terminals form a port, i.e., if the sum of the terminal currents is zero all of the time. On the other hand, looking from a field theory perspective, it can make sense to associate a power flow even to a set of terminals which do not form a port, especially to single terminals. This can be done by integrating the Poynting vector over those parts of a closed surface around the circuit,which points are geometrically more close to one terminal than any other terminal. We argue that, under certain conditions, the product of terminal current with the difference of the terminal potential and the average potential of all port terminals can serve as power assigned to this terminal in the field theoretic sense stated above.
AB - In classical circuit theory, the question of how much power flows into a circuit through a set of terminals only makes sense if these terminals form a port, i.e., if the sum of the terminal currents is zero all of the time. On the other hand, looking from a field theory perspective, it can make sense to associate a power flow even to a set of terminals which do not form a port, especially to single terminals. This can be done by integrating the Poynting vector over those parts of a closed surface around the circuit,which points are geometrically more close to one terminal than any other terminal. We argue that, under certain conditions, the product of terminal current with the difference of the terminal potential and the average potential of all port terminals can serve as power assigned to this terminal in the field theoretic sense stated above.
UR - http://www.scopus.com/inward/record.url?scp=80155188067&partnerID=8YFLogxK
U2 - 10.1109/ICEAA.2011.6046457
DO - 10.1109/ICEAA.2011.6046457
M3 - Conference contribution
AN - SCOPUS:80155188067
SN - 9781612849782
T3 - Proceedings - 2011 International Conference on Electromagnetics in Advanced Applications, ICEAA'11
SP - 869
EP - 872
BT - Proceedings - 2011 International Conference on Electromagnetics in Advanced Applications, ICEAA'11
T2 - 2011 13th International Conference on Electromagnetics in Advanced Applications, ICEAA'11
Y2 - 12 September 2011 through 16 September 2011
ER -