Abstract
This work describes the integration of a high precision power supply in a scan magnet in National Synchrotron Radiation Research Center (NSRRC). Horizontal and vertical energy transmission to the scan magnet are independent. The high precision and sinewave are utilised to produce a smooth circle field. This power supply has an air cooling system and a more protective function to keep the machine and magnet from being damaged. During the scan magnet application, the maximum current is 12.5 A, and the inductor is 30 mH at 20 Hz sine wave. Accordingly, Kecpo BOP 72-14 model with a maximum current of 14 A and maximum output voltage of 72 V is chosen. Finally, an integrated high-precision scan magnet power supply is created in the laboratory. Experimental result shows the output current ripple and bandwidth, with the output current being 14 A and the maximum ripple being 0.45 A. This combination is simple because no resistor is in parallel with the magnet coils. Lastly, this work demonstrates the magnetic field, output current ripple, and frequency variation with output current to prove that this power supply meets the requirements.
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