This compact cylindrical converter is capable of delivering up to 400 kV. It can be taken as the basis of a shock device to scare away dogs .. or people! Also, based on this module, it is possible to create a compact e lighters that are so popular right now. This boost converter is capable of piercing up to 20 mm of air, which, you see, is a lot. Current consumption is large enough, can reach several amperes - stock up on a powerful source of energy.
With an input voltage of 3-7.2 V, this module produces 200,000 V high voltage with a certain frequency. The converter can be used to demonstrate the effects of high voltage, a negative ion generator and for any scientific experiments, as a high voltage source.
At 4.2 V and a distance between the electrodes of 3 mm, the current consumption was 2.9 A, while the output frequency was very high. At a distance of 23 mm, which is slightly more than declared at U = 4.5 V, 3 A current came out. But this step-up converter could not handle 25 mm, only the contacts sparked. Naturally, the passage of current through the air is accompanied by a loud crack (the larger the distance, the lower the frequency), which to put it mildly excites.
It is recommended to use two cans of lithium-ion batteries for power supply, connected in series with a capacity of at least 2000 mA * h or 5-6 NiMH / NiCd rechargeable batteries. Despite its impressive size, this boosting module is more than modest: 24 by 64 mm.
Cost: ~ 178