| 摘要 |
Proposed is a two-wire on/off switch with an externally controllable control circuit (St) which is connected via a power-supply circuit (I) and a first terminal (a), designed to connect it to a power supply, and with a second terminal (b) designed to connect it to a load also connected to the power supply, the switch having an electronic switch unit (S) controlled by the control circuit (St) and connected to the first terminal (a) and, through at least one diode (D), with the second terminal (b) and also having a d.c./d.c. converter (DC) whose input side is connected to the point of connection of the electronic switch unit (S) and the diode (D) and whose output side is connected to the control circuit (St). |
