In this picture is everything you will need to make a self running power supply. The input is a 12vdc 7ah lead acid or gel cell battery (not shown). The input goes to a 12vdc to 120vac inverter of about 200 watts more or less, it is not critical as long as it can turn on the next part, the transformer. The transformer is a 9000v, 30ma, 35khz neon
Click here to download the full size of the above Circuit.
sign transformer with two outputs that are rectified and its output is controlled by the variac for neon signs after the inverter. The next thing you see is two high voltage capacitors of. 1uF 4000vdc. They are in parallel which makes. 2uF 4000vdc. These are the self healing type, though not critical as long as you keep the transformer adjusted to 4000 volts or less. Don keeps it down around 2000 to 3000 volts. The next part before the coils is the enclosed spark gap connected to the neon transformer ground and the one end of the L-1 coil and the capacitors. Where the wire and the gap meet is also your grounding lug for this part of the system. If you look carefully at the capacitors, you will see that they are in parallel across the two L-1 coil wires (red) and the high voltage diodes are coming from two different connections and meeting at the capacitors. Look carefully at the polarity of the diodes. These diodes should be rated at least 2 times the output of the transformer. The next part is the L-1 coil that takes the power that you have generated and sets how much you are going to step it up. For example: If you have 2500 volts coming from the transformer and you have 10 turns on your L-1 coil, then you divide 2500 by 10 and you get 250 volts to transfer to each L-2 winding. So if you have 30 windings on your L-2 coil, then you will have stepped the voltage up to 7500 volts. 60 windings = 15000 volts. 100 windings =...
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.....
characters left: