| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a two-channel load control device capable of preventing malfunction of a control unit even in the connection of a load which consumes time to stabilize load current, such as a fluorescent lamp illumination device. <P>SOLUTION: A two-channel load control device comprises: a switch element 12 and a current transformer 13 connected to an AC power supply 2 and a load 3; an off power supply unit 14 for outputting DC power using AC current supplied from the AC power supply 2 via the load 3 when the switch element 12 is in a non-conductive state; an on power supply unit 17 for outputting DC power when the switch element is in a conductive state, using AC current flowing to a secondary side of the current transformer; control units 20, 21, and 22 driven by DC power output from the off power supply unit and the on power supply unit and controlling the conduction and the non-conduction of the switch element on the basis of externally input operation information; and an auxiliary power supply unit 23 provided between the off power supply unit or the on power supply unit and the control unit and supplying DC power to the control units when the switch element is switched from the non-conductive state to the conductive state. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
