All items tagged with Switch and main (17)

1-07-2008 | A wireless operated power point is described to help an elderly person switch off a lamp while in bed.

1-07-2006 | There are many situations where two or more pieces of equipment are used together and to avoid having to switch each item on separately or r...

1-07-2006 | The vacuum cleaner must be switched on when a grinding or sawing tool is switched on and as the operator's attention must be directed t...

1-02-2004 | The wide availability of low-cost switched mains sockets with radio remote control provides a simple way to control electrical equipment, li...

1-07-2002 | This compact design forms a remotely operated switch that receives its control signal via the mains voltage. The switch is operated using th...

1-07-2002 | The circuit shown here was born out of necessity after one of our colleagues had just renovated his kitchen and realised afterwards that the...

1-12-1999 | Current personal computers with an ATX motherboard are not provided with a switched mains output socket. It is therefore no longer possib...

1-12-1999 | Mains adaptors are used more and more frequently to power small equipment. A drawback of this is that even when the equipment is swit...

1-07-1999 | It sometimes happens that it is necessary for the contacts of a mains switch to be isolated or for the switch to be able to handle a large...

1-11-1998 | If you employ several networked computers, you probably don’t have enough desk space, since most of the system components are duplicated o...