TY - GEN
T1 - Parallel connection of piezoelectric transformers
AU - Bronstein, Svetlana
AU - Ivensky, Gregory
AU - Ben-Yaakov, Sam
PY - 2004/11/29
Y1 - 2004/11/29
N2 - The behavior of parallel connected Piezoelectric Transformers (PTs) was analyzed by applying the generic PT model to represent the combined network in the most general way. The influence of a deviation in each of the PT parameters was examined with respect to total output and losses in each PT. It was found that the requirement for identity in the equivalent circuit parameters R m and Co in the two PTs is not strong. The most critical parameter for equal loss in the PTs is (ωr - the mechanical resonant frequency of PTs, which has to be equal in the parallel units, even though the values of the parameters Cr and Lr can be slightly different. Since the resonant LCC type inverters are practically identical to the equivalent electrical circuit of PTs, the results of this study are relevant to combined connected LCC inverters. The analytical results of this study were verified by SPICE simulation and experiments. The experiments were done on parallel-connected PTs (T1-2, Face Co., VA, USA) and LCC inverters built by passive elements.
AB - The behavior of parallel connected Piezoelectric Transformers (PTs) was analyzed by applying the generic PT model to represent the combined network in the most general way. The influence of a deviation in each of the PT parameters was examined with respect to total output and losses in each PT. It was found that the requirement for identity in the equivalent circuit parameters R m and Co in the two PTs is not strong. The most critical parameter for equal loss in the PTs is (ωr - the mechanical resonant frequency of PTs, which has to be equal in the parallel units, even though the values of the parameters Cr and Lr can be slightly different. Since the resonant LCC type inverters are practically identical to the equivalent electrical circuit of PTs, the results of this study are relevant to combined connected LCC inverters. The analytical results of this study were verified by SPICE simulation and experiments. The experiments were done on parallel-connected PTs (T1-2, Face Co., VA, USA) and LCC inverters built by passive elements.
UR - http://www.scopus.com/inward/record.url?scp=8744260697&partnerID=8YFLogxK
U2 - 10.1109/PESC.2004.1355385
DO - 10.1109/PESC.2004.1355385
M3 - Conference contribution
AN - SCOPUS:8744260697
SN - 0780383990
T3 - PESC Record - IEEE Annual Power Electronics Specialists Conference
SP - 1779
EP - 1785
BT - 2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04
T2 - 2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04
Y2 - 20 June 2004 through 25 June 2004
ER -