Dr Alexandr Erokhin (BINP)Mr Artem Kremnev (Binp)Mr Sergei Vasichev (BINP)
This report presents a family of precision switch-mode power supplies specially designed for highly inductive superconducting magnets used in particle physics experiments. The power supplies have an output current range from 500 to 1300A and are adapted to non-linear load behaviour while maintaining high stability of the output parameters. Circuit designs aimed at reducing switching losses and increasing the overall efficiency are presented. Some aspects of superconducting magnets quench protection systems and save energy extraction have also been considered.