TY - GEN
T1 - Interleaved four-phase buck-based current source with center-tapped energy-recovery scheme for electrical discharge machining
AU - Lin, Ray Lee
AU - Hsu, Cheng Ching
AU - Changchien, Shih Kuen
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2008
Y1 - 2008
N2 - This paper proposes a center-tapped energy-recovery scheme used in the interleaved four-phase buck-based current source in continuous conduction mode (CCM) for electrical discharge machining (EDM). A pulse machining current with high slew rate is required for the EDM. Using the interleaving technique, the output current slew rate of the buck-based current source can be improved because of the paralleled inductors at the start of discharge. The proposed center-tapped energy-recovery scheme provides a major path for the inductor to release its stored energy to avoid high voltage stress in the output terminal when the gap is in the high-impedance state. The energy stored in the inductor is recovered to the input capacitor, and can be reused for machining. The experimental results are provided as the verification of the high output current slew rate and the energy recovery when the gap is in high-impedance state.
AB - This paper proposes a center-tapped energy-recovery scheme used in the interleaved four-phase buck-based current source in continuous conduction mode (CCM) for electrical discharge machining (EDM). A pulse machining current with high slew rate is required for the EDM. Using the interleaving technique, the output current slew rate of the buck-based current source can be improved because of the paralleled inductors at the start of discharge. The proposed center-tapped energy-recovery scheme provides a major path for the inductor to release its stored energy to avoid high voltage stress in the output terminal when the gap is in the high-impedance state. The energy stored in the inductor is recovered to the input capacitor, and can be reused for machining. The experimental results are provided as the verification of the high output current slew rate and the energy recovery when the gap is in high-impedance state.
UR - http://www.scopus.com/inward/record.url?scp=49249123366&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=49249123366&partnerID=8YFLogxK
U2 - 10.1109/APEC.2008.4522929
DO - 10.1109/APEC.2008.4522929
M3 - Conference contribution
AN - SCOPUS:49249123366
SN - 9781424418749
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1536
EP - 1542
BT - 2008 23rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC
T2 - 2008 23rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC
Y2 - 24 February 2008 through 28 February 2008
ER -