TY - JOUR
T1 - Conditional Pulse Density Modulation for Inductive Power Transfer Systems
AU - Zhou, Jiayu
AU - Guidi, Giuseppe
AU - Chen, Shuxin
AU - Tang, Yi
AU - Suul, Jon Are
PY - 2024/1
Y1 - 2024/1
N2 - This letter proposes a conditional pulse density modulation (PDM) method for inductive power transfer (IPT) systems, which can automatically adapt the generated output patterns to effectively suppress current/power ripples. The proposed conditional PDM introduces a sending current limitation as an additional condition to skip pulses, which modifies the output patterns generated by conventional delta-sigma-based PDM. Thus, the PDM pulse pattern is continuously adapted to attenuate any excited current/power oscillations. The presented modulator is simple to implement and well-suited for IPT systems with poorly damped constant voltage load characteristics. Simulations and experiments demonstrate the effectiveness of the proposed modulation method. © 1986-2012 IEEE.
AB - This letter proposes a conditional pulse density modulation (PDM) method for inductive power transfer (IPT) systems, which can automatically adapt the generated output patterns to effectively suppress current/power ripples. The proposed conditional PDM introduces a sending current limitation as an additional condition to skip pulses, which modifies the output patterns generated by conventional delta-sigma-based PDM. Thus, the PDM pulse pattern is continuously adapted to attenuate any excited current/power oscillations. The presented modulator is simple to implement and well-suited for IPT systems with poorly damped constant voltage load characteristics. Simulations and experiments demonstrate the effectiveness of the proposed modulation method. © 1986-2012 IEEE.
KW - Inductive power transfer (IPT)
KW - pattern optimization
KW - pulse density modulation (PDM)
KW - ripples
KW - zero-voltage switching (ZVS)
UR - http://www.scopus.com/inward/record.url?scp=85174798023&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85174798023&origin=recordpage
U2 - 10.1109/TPEL.2023.3324888
DO - 10.1109/TPEL.2023.3324888
M3 - RGC 21 - Publication in refereed journal
SN - 0885-8993
VL - 39
SP - 88
EP - 93
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 1
ER -