A solid state flyback driver based on a micro solid-state Tesla coil circuit created by Steve Ward. The schematic is reprinted here with credits to Steve Ward: microsstc. jpg. NOTES ON MY DESIGN: Instead of an air-core Tesla Coil setup, I used a flyback. Also I used a IRFP450 MOSFET, which is rated about 4A less than the IRFP460 MOSFET. The transformer I used is ~30V 2A.
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I used a standard 8-pin socket instead of two 4-pin sockets for the two ICs (TC4420 and 555 timer). This tube flyback driver is based on a vacuum tube tesla coil (VTTC) and high voltage generation circuits in tube TVs. Below is the schematic of the tube flyback driver. The 6BG6 tube is a TV output tube that drives the flyback transformer. The 12SQ7 is a high-gain amplifier that boosts the feedback signals to oscillate the 6BG6 tube. The power transformer was salvaged from a small HP frequency counter, and has 250V, 18V, and 7V windings. The 250V winding is fed in a voltage doubler which brings it up to around 600V, but drops to around 300 to 400 volts loaded. The 18V winding feeds the 6V 2. 5A filament of the 6BG6 tube, which works alright and the voltage drops to about 5V loaded. The 7V winding is fed into another voltage doubler to bring up the voltage to around 10V to 15V for the 12V filament of the 12SQ7. The circuit is self-resonant due to the use of feedback to trigger the oscillations so there is no frequency alignment necessary.
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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