TY - CONF AU - Eckoldt, H. J. AU - Faubladier, F. AU - Heidbrook, N. TI - Constant-Power Power Supplies for the TESLA Modulators IS - DESY-M-00-04Z CY - Hamburg PB - DESY M1 - PUBDB-2016-02944 M1 - DESY-M-00-04Z SP - 2199-2201 PY - 2000 AB - For the TESLA Test Facility at DESY modulators, which generate high voltage, pulses of 130 kV with an electrical power of up to 16.8 MW are used. The pulses have a repetition rate of up to 10 Hz and a width of 1.7 ms. Since it is not possible to take the pulsed energy directly from the mains the required energy is stored in capacitor banks to be released during the pulse. Power supplies are needed to recharge the capacitor banks of the modulators without disturbing the mains. In particular the low repetition rate of the pulses has to be suppressed. Tobe independent from the repetition rate the power supplies have to operate in a constant power mode. The DC charging current into the capacitors decreases during the loading with the same factor with which the voltage increases. In this way the current taken from the threephase mains is constant. Different types of power supplies have been investigated at DESY and are described here. These types are antiductors with secondary diode bridges, switched mode power supplies, diode bridges plus series switched mode supplies, diode bridges with SCR bridges in sequential phase control. T2 - The 7th European Particle Accelerator Conference EPAC 2000 CY - 26 Jun 2000 - 30 Jun 2000, Vienna (Austria) Y2 - 26 Jun 2000 - 30 Jun 2000 M2 - Vienna, Austria KW - talk: Vienna 2000/06/26 (INSPIRE) KW - electron positron: linear collider (INSPIRE) KW - linear collider: proposed (INSPIRE) KW - RF system: superconductivity (INSPIRE) KW - microwaves: oscillation (INSPIRE) KW - power supply (INSPIRE) KW - DESY TESLA Linac (INSPIRE) LB - PUB:(DE-HGF)29 ; PUB:(DE-HGF)8 DO - DOI:10.3204/PUBDB-2016-02944 UR - https://bib-pubdb1.desy.de/record/301877 ER -