Using a 74HC14 HCMOS circuit and some electronic components can be built a very simple voltage inverter electronic project. Using this circuit diagram ca be obtained a negative voltage from a positive voltage.
The output signal is converted by a charge pump, to a negative supply voltage. Diodes used for this purpose are Schottky type which, due to their low threshold voltage, does not reduce load voltage level as much as silicon diodes.
Using a 7805 voltage regulator and some classic electronic components can be made a very simple voltage regulator capable of providing a maximum current of 3 amperes.
