| This circuit can be used to superimpose a 143-kHz carrier on the mains voltage, which allows various applications to be realised. One exampl...
| This circuit can be used to superimpose a 143-kHz carrier on the mains voltage, which allows various applications to be realised. One exampl...
| 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...
| The mains-synchronised oscillator has certain advantages over a simple zero crossing detector. For instance, the brief failing of input p...