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@InProceedings{wyche:napac2019-moplo09,
author = {G.D. Wyche and B.L. Beaudoin and L. Dovlatyan and D.F. Sutter},
title = {{A Pulsed, Current Regulated Magnet Power Supply for Small Magnets}},
booktitle = {Proc. NAPAC'19},
pages = {252--255},
paper = {MOPLO09},
language = {english},
keywords = {quadrupole, injection, controls, operation, timing},
venue = {Lansing, MI, USA},
series = {North American Particle Accelerator Conference},
number = {4},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {10},
year = {2019},
issn = {2673-7000},
isbn = {978-3-95450-223-3},
doi = {10.18429/JACoW-NAPAC2019-MOPLO09},
url = {http://jacow.org/napac2019/papers/moplo09.pdf},
note = {https://doi.org/10.18429/JACoW-NAPAC2019-MOPLO09},
abstract = {The University of Maryland Electron Ring (UMER) has two pulsed quadrupoles in the injection section that must be current regulated to the same precision as the other DC quadrupoles in the ring, as well as accurately synchro-nized to the ring operating cycle. To meet this need, a practical pulsed current, regulated power supply has been designed and built using a commercial power operational amplifier for output, standard operational amplifiers for feedback control and monitoring, and matched resistor pairs to produce the desired transfer function of 10 Volts to 6 Amperes. For other applications the circuit can be modified to produce a range of transfer functions by varying the appropriate resistor pair ratios. Output pulse width and timing are generated by a standardized TTL pulse from the control system that gates the output of the amplifier. Installed safety circuitry detects the absence of a proper control pulse, an open circuit or shorted output, and measures and returns to the control system the actual operating amplitude of the current pulse. In this paper we present the design, implementation, and operational results of the prototyped pulsed current source.},
}