Utilization of Low Distortion Power Electronics Current Sources in Generator of Spatial Magnetic Field

The paper considers Generator of the Spatial Magnetic Field for medicine purposes. One of essential blocks there is three-channel power electronics current source, powering set of space oriented induction coils (electromagnets) - sources of magnetic field. The control module utilizes DSP based microcomputer for power electronics applications. The microcomputer is integrated with industrial PC in form of PCI card. The execution block utilizes three power electronics inverters, utilizing PWM strategy. The paper describes fundamentals of current source control algorithms and test results of laboratory model of generator.