Mike RigsbyLet's start with a schematic of the power supply.
This supply is built on a piece of 5 1/4" x 6 1/4" plywood (1/4" thick). The four 350 farad capacitors are soldered together in series, then placed in the 3d printed capacitor holder.
A "three cell" D battery holder is added.
The second toggle switch and digital voltmeter are added.
The second "3 D cell battery holder" is added.
Everything is connected and wired out to a plug that can attach to the dog's body.
The 9 volt battery holder (with built in switch) and the battery/capacitor power supply are attached to the body using velcro.
Because the dog was tired of being inside, I took her out for a little air.
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Actually, the ultracapacitors tend to have a low maximum voltage (2.7 volts in my case), so they need to be in series to handle the battery voltage.
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Why are the capacitors in series? Shouldn't they be connected in parallel?
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