Switched-Capacitor Voltage Splitter

This is a variation of the circuit Switched-Capacitor Voltage Divider. The goal in this circuit is to split the power supply voltage into two. Separate loads will be connected to the two voltages generated. Two reservoir capacitors were used, one from the positive supply to the intermediate voltage terminal and another from the intermediate voltage terminal to ground. These capacitors are in parallel with the loads Rloadpi, a load from the positive supply to the intermediate voltage, and Rloadig, the load from the intermediate voltage to ground. The 10 kHz oscillator frequency is retained but to allow a recognizable droop in the intermediate voltage, the capacitors have lower values of 0.33 µF each. A potentiometer is provided in the output to allow the alteration of load symmetry and its effects to be observed. The two sections of the potentiometer shunt the loads. If the wiper is at 50% the output waveforms are straight lines, this is because the loads are balanced. Adjusting the wiper up or down makes the output waveforms serrated. Lowering the switching frequency, lowering the capacitances and adjusting the potentiometer farther from center make the output waveforms serrated. As these parameters are adjusted toward the extremes, the output waveforms reveal more of their exponential characteristics.