Any high-gain Darlington transistor can be used on this touch circuit. The load can be formed by LEDs and the power supply isolated from the power grid.
This latched alarm uses a double relay for this purpose and can control higher power external...
This single-cell Li-Ion battery charger was found in a 2005 Linear Technology manual. The circuit...
This power supply can provide 10 A currents. Its regulation is made by 7812 integrated circuit. The...