| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical switch array control circuit for supplying constant current, independently of the current direction in each coil, by supplying current of a reverse direction to a forward direction in each coil in a single current power. SOLUTION: The optical switch array control circuit has a current source I1, giving current of the forward direction or the reverse direction in each of a plurality of coils Lmn arranged in the form of an array and for supplying the constant current, in order to obtain the Lorentz force from each coil Lmn, and current selection circuits MC11-MC14 for setting a current path to the corresponding coil from the current source to any one of the forward direction, the reverse direction or the current zero, on the basis of the selection signal. COPYRIGHT: (C)2005,JPO&NCIPI |
