N° of component 

Positive or Negative Voltage Doubler (CB1229E)

    In the figure we have an application of an oscillator 4013 as voltage multiplier. It consists of a doubler capable of providing positive (a) or negative (b) output voltages. Entering with 5 V will have a 10 V output. The diodes are commonly used as 1N4148 or equivalent. The maximum output current is of the order of a few hundred microampers, which should be taken into account in practical applications. We take as base the 4093 integrated circuit, but nothing prevents that any CMOS inverter can be used in this circuit.





Circuit Bench

  • 5 ms delay (CB1475E )

         The circuit shown was obtained from a 1976s publication for radio amateurs. Its purpose is to...

  • Remote Phone Ring (CB1349E )

           This circuit, obtained in an old publication, causes a second telephone bell to be played in a...