This circuit provides reverse power polarity protection using a power MOSFET and a diode. The MOSFET must be current in accordance with the current of the protected circuit.
This circuit, obtained from a 1965 magazine, can still be assembled using some modern equivalent...
We found this circuit on an Elektor from the 90s. The frequency is given by capacitor C1. The...
This powerful regulator, shown in the figure is for 5V (TTL) is suggested by Motorola and makes use...