TY - GEN
T1 - Rapid Capacitor Charger with Advanced Digital Control
AU - Giesselmann, Michael
AU - Mayes, Jon
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - We are reporting on the design of a compact capacitor charger with a rated output voltage of 50kV and a power rating of 10kJ/s. The input source is a 208V, 3-phase AC utility supply. The charger shall fit in to an 19inch, 5U enclosure. The core of the charger is a HV-power pack containing a high-frequency transformer with a nano-crystalline core, multiple output windings using litz-wire and integrated HV rectifiers. The primary of the transformer is driven by an H-bridge inverter with advanced IGBTs and matching High Power Drivers. The control is through a state-of-the-art Digital Signal Controller (DSC) with fast cycle-by-cycle Peak current mode control, leading edge blanking, and high resolution, fast, automated slope compensation for current loop stability. The DSC runs at 5 times the speed of the main processor core for ns level PWM resolution.
AB - We are reporting on the design of a compact capacitor charger with a rated output voltage of 50kV and a power rating of 10kJ/s. The input source is a 208V, 3-phase AC utility supply. The charger shall fit in to an 19inch, 5U enclosure. The core of the charger is a HV-power pack containing a high-frequency transformer with a nano-crystalline core, multiple output windings using litz-wire and integrated HV rectifiers. The primary of the transformer is driven by an H-bridge inverter with advanced IGBTs and matching High Power Drivers. The control is through a state-of-the-art Digital Signal Controller (DSC) with fast cycle-by-cycle Peak current mode control, leading edge blanking, and high resolution, fast, automated slope compensation for current loop stability. The DSC runs at 5 times the speed of the main processor core for ns level PWM resolution.
KW - HV capacitor charger
KW - digital control
UR - http://www.scopus.com/inward/record.url?scp=85127251124&partnerID=8YFLogxK
U2 - 10.1109/PPC40517.2021.9733157
DO - 10.1109/PPC40517.2021.9733157
M3 - Conference contribution
AN - SCOPUS:85127251124
T3 - IEEE International Pulsed Power Conference
BT - 2021 IEEE Pulsed Power Conference, PPC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE Pulsed Power Conference, PPC 2021
Y2 - 12 December 2021 through 16 December 2021
ER -