| This application can actually be considered to be a slight adaptation of the standard use of the Holtek HT12E encoder (www.holtek.com). We h...
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| This compact design forms a remotely operated switch that receives its control signal via the mains voltage. The switch is operated using th...
| The circuit shown here was born out of necessity after one of our colleagues had just renovated his kitchen and realised afterwards that the...
| Many circuits can be powered directly from the mains with the aid of a series capacitor (C1). The disadvantage of this approach is that usua...
| Current personal computers with an ATX motherboard are not provided with a switched mains output socket. It is therefore no longer possib...
| Mains adaptors are used more and more frequently to power small equipment. A drawback of this is that even when the equipment is swit...
| Without any question, the most popular sound card for the PC is currently the SoundBlaster Live!, together with its less expensive cou...
| The detector is intended to sense and signal to another circuit that an appliance is connected to the mains voltage. For this purpose, an...
| 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...
| The indicator shows when the mains is present at its output by a continuous glow of a neon bulb, La1, and when the fuse is blown by flashi...