The variable that has the least affect on the overall system is the output capacitance as shown in Figure 4.3. Generally, the value of this capacitor only affects the speed of the transient response. The bigger the value for the output capacitance, the slower the voltage rise time. This does not mean, however, that the smallest capacitor will work the best, or that no capacitor should be used. Without a capacitor there, the output is not a good DC signal, but more of an offset AC signal, meaning that it will be DC with ripple.
Figure 4.3: Voltage Doubler with Output Capacitor
23
The variable that has the least affect on the overall system is the output capacitance as shown in Figure 4.3. Generally, the value of this capacitor only affects the speed of the transient response. The bigger the value for the output capacitance, the slower the voltage rise time. This does not mean, however, that the smallest capacitor will work the best, or that no capacitor should be used. Without a capacitor there, the output is not a good DC signal, but more of an offset AC signal, meaning that it will be DC with ripple.Figure 4.3: Voltage Doubler with Output Capacitor23
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