This 1 A circuit was found in a Philips documentation from 1966. The transistor is of the time, but a modern transistor of equivalent power can be used.
Found in a Maxim documentation from the 90s, this circuit produces a voltage of 5 V from an input...
ON Semiconductor NTMJS1D5N04C 40V Industrial MOSFET Available from Mouser Electronics, these ON...
This is one of many possible touch switch configurations using CMOS integrated circuits. The...