| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an easy-to-manufacture electromagnet control device, capable of suppressing noise etc. with a reduced number of wiring lines. <P>SOLUTION: With the provision of a plurality of electromagnets 10, the electromagnet control device generates a prescribed magnetic field space by carrying an excitation current of a prescribed waveform to excitation coils X of the electromagnets 10. The electromagnet control device includes: a driver for carrying an arbitrary excitation current to each excitation coil X; and a current control unit 12 for ordering to the driver an excitation current value to be carried to the excitation coil. On the basis of each unit 20 composed of the driver 11 and the current control unit 12, a plurality of units 20 are placed separately. The current control unit and the driver in each unit are connected by serial communication of a daisy chain. The current is supplied from a power supply to each unit through a bus line 22 enabling the supply in multi-drop. <P>COPYRIGHT: (C)2012,JPO&INPIT |
