| 摘要 |
PURPOSE:To commonly control a load from any place by commonly connecting an operation diode connected in series with an operation switch and a control diode to an AC power source line by a circuit having a plurality of controllers. CONSTITUTION:A plurality of controllers 1, 2 of the same circuit configuration with respect to an AC power source are connected with the same lines 11, 12, 13. Operation diodes D<1>, D<2> and D<3>, D<4> and operation switches S<2>-S<4> of anti-parallel relation are connected in the controllers 1, 2 between the lines 12 and 13. Control diodes LD<1>, LD<2> and LD<3>, LD<4> for applying control signals s<1>, s<2>, r<1>, r<2> to controllers C<1>, C<2> are inserted in anti-parallel connection to the midway of the line 12. Thus, when the switch S<1> is, for example, closed, signals s<1>, s<2> are simultaneously generated to control simultaneously a plurality of controllers C<1>, C<2>. |
