Design of control and driving circuits for4×4 optical switching matrix

The design of the control and driving circuits for 4× 4 optical switching m atrix is described in detail. Several kinds of configuration schem e are proposed based on the analysis of the m atrix's state table,the m ethod for state switching and the characteristics of magnetic latching driving. Meanwhile the differences among them are dis- cussed. At last a kind of im plem entation of circuits using L PT and Generic Array L ogic is given. The testing results show that the performance of the circuits is good.