The circuit in Figure 30 produces a positive DC output voltage. How can it be reconfigured to make a negative output voltage? Construct the voltage inverter and repeat the experiment/simulation.
The voltage doubler circuit can be easily configured to produce a negative output DC voltage by reverting the diodes D1 and D2 as shown in the circuit below:
Let’s now examine how the circuit works in this configuration:
A simulation example for the negative voltage doubler is presented in the figure below, by applying at the input a sine wave having 2V amplitude and 1KHz frequency.