The idea behind a capacitor bank is to charge up as much energy as possible to short circuit that energy through small coils, aluminium paper, steel wool, wire and a lot of other things that can conduct a electric current. The short circuit current is enormous for a very short time and that big amount of energy can turn the conducting paths material into vapour.
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Microwave oven capacitors capacity is relatively low for their voltage rating, but they are designed to be applied around 300% of their rated DC voltage for 60 seconds. Most are rated 2100VAC at about 0, 8 to 1 uF capacity. Microwave oven capacitors got a built in bleeder resistor which discharges the capacitor fast, which is why its important to discharge the bank as fast as possible when the wanted voltage is stored over the bank. On the other hand its a good safety feature that the bank will discharge itself within 30 seconds and that might save your life. The amount of microwave ovens needed to build this bank is over the edge, but as they can be obtained for free from containers its still worth the time for the sake of the experiments. Microwave oven capacitors are not build to sustain these hard short circuits, so they will take damage for each short circuit in the form of lowered capacity as the dielectric material in the capacitor is damaged, this might end fatal with a shorted capacitor that in the worst case will happen with a violent explosion. Take care to shield off the capacitors as they are housed in a metal can, fragments from these is not something you want flying around you if there is a failing capacitor. With the knowledge of the capacitors being designed to work with voltages 300% higher than their ratings for shorter periods of time, I have chosen to charge them to 6000 VDC as its convenient to build...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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