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Trickle charger. Do you know a Voltage source that is very small that comes at a regular frequency? The purpose of the circuit is to capture it, amplify the voltage and put it gradually into the progressively larger caps.
V source for this circuit is: 100mV or 1/10th of a Volt.
Keeping the caps progressively larger with a higher voltage from smaller to larger caps keeps them from equalizing and gradually transfers charge to the target cap at the bottom.
The sim time for the circuit is at it's maximum and that is only 196 us/s.....so you'll wait a long time to actually hit the switch and power the lamp (1.5V 30mW). You'll need to watch for the blue indicated wire to show 1.5V. Or you can just increase the amplitude of the V source to see that happen quicker.
Right circuit is nearly the same but introduces chokes on each cap. This decreases the overall charging time. Easier to see when higher amplitudes are used for V source.
Word of warning, these circuits are dangerous at even low voltages, if you make one please exercise the necessary care and caution for yourself and others. Do not connect any V source you aren't aware of what the final output of any cap will be. A 1.2V signal source, for example, will be bumped up to 5V in 42ms across the 10uf cap (right circuit). That's 0.042 of a second. What will it be at 1 second? 2 seconds? More importantly, since capacitors are used, what is the charge? These are things you need to know.
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