問7.6.AND、OR、NOT素子の設計:シミュレータを使って1~3を確かめ4に答えよ。
  1. スイッチ素子は、Xに電圧がかかる(X=1)とYとZが遮断され、X=0のときYとZがつながって電流が流れる
  2. Yに電圧をかける(Y=1)と、X=1のときZ=0でX=0のときZ=1だから、NOTの働きをする
  3. スイッチ素子を直列につないで右の¬につなぐと、¬(¬X∧¬Y)=X∨YなのでORができる
  4. スイッチ素子を使ってAND素子を構成するつなぎ方を記述せよ
    ヒント:スイッチ素子の働きは¬X∧Yなので、Switch2のX端子に¬Xをつなぐ。
    >記述方法は前問(問7.5)のヒントを参考にして下さい。

{ "width":450, "height":320, "showToolbox":true, "toolbox":[ {"type":"DC"}, {"type":"LED"}, {"type":"Toggle"}, {"type":"Switch"}, {"type":"NOT"}, {"type":"AND"}, {"type":"OR"} ], "devices":[ {"type":"Toggle","id":"dev0","x":48,"y":0,"label":"X","state":{"on":false}}, {"type":"DC","id":"dev1","x":0,"y":184,"label":"DC"}, {"type":"Toggle","id":"dev2","x":56,"y":216,"label":"X","state":{"on":false}}, {"type":"DC","id":"dev3","x":0,"y":248,"label":"DC"}, {"type":"Toggle","id":"dev4","x":56,"y":272,"label":"Y","state":{"on":false}}, {"type":"Toggle","id":"dev5","x":40,"y":104,"label":"X","state":{"on":false}}, {"type":"Toggle","id":"dev6","x":88,"y":104,"label":"Y","state":{"on":false}}, {"type":"Switch","id":"dev7","x":80,"y":152,"label":"Switch"}, {"type":"LED","id":"dev8","x":184,"y":8,"label":"LED"}, {"type":"DC","id":"dev9","x":0,"y":24,"label":"DC"}, {"type":"Toggle","id":"dev10","x":48,"y":48,"label":"Y","state":{"on":false}}, {"type":"Switch","id":"dev11","x":96,"y":16,"label":"Switch"}, {"type":"LED","id":"dev12","x":304,"y":96,"label":"¬X"}, {"type":"Switch","id":"dev13","x":224,"y":96,"label":"Switch"}, {"type":"Toggle","id":"dev14","x":184,"y":56,"label":"X","state":{"on":false}}, {"type":"DC","id":"dev15","x":136,"y":80,"label":"DC"}, {"type":"LED","id":"dev16","x":304,"y":176,"label":"X∨Y"}, {"type":"Switch","id":"dev17","x":224,"y":176,"label":"Switch"}, {"type":"Switch","id":"dev18","x":152,"y":128,"label":"Switch"}, {"type":"Switch","id":"dev19","x":112,"y":240,"label":"Switch1"}, {"type":"Switch","id":"dev20","x":200,"y":264,"label":"Switch2"}, {"type":"LED","id":"dev21","x":304,"y":264,"label":"X∧Y"} ], "connectors":[ {"from":"dev0.in0","to":"dev9.out0"}, {"from":"dev2.in0","to":"dev3.out0"}, {"from":"dev4.in0","to":"dev3.out0"}, {"from":"dev5.in0","to":"dev1.out0"}, {"from":"dev6.in0","to":"dev1.out0"}, {"from":"dev7.in0","to":"dev5.out0"}, {"from":"dev7.in1","to":"dev1.out0"}, {"from":"dev8.in0","to":"dev11.out0"}, {"from":"dev10.in0","to":"dev9.out0"}, {"from":"dev11.in0","to":"dev0.out0"}, {"from":"dev11.in1","to":"dev10.out0"}, {"from":"dev12.in0","to":"dev13.out0"}, {"from":"dev13.in0","to":"dev14.out0"}, {"from":"dev13.in1","to":"dev15.out0"}, {"from":"dev14.in0","to":"dev15.out0"}, {"from":"dev16.in0","to":"dev17.out0"}, {"from":"dev17.in0","to":"dev18.out0"}, {"from":"dev17.in1","to":"dev1.out0"}, {"from":"dev18.in0","to":"dev6.out0"}, {"from":"dev18.in1","to":"dev7.out0"} ] }