Here is probably the best ignition coil driver circuit that I have seen. As far as I know it was designed by Jochen Kronjaeger. You can find the original at Jochen`s High Voltage Page This circuit is designed to run from 230V, but I have came up with a circuit that will run from 120V about just as well. You will need to find two ignition coils (pr
Click here to download the full size of the above Circuit.
eferably of the same type), a 100uF with at least a 200VDC rating, a full-wave bridge rectifer with a rating of about 5A at 200VDC. A large power resistor with at about 150-200ohms resistance and a power capability of at least 100W, or you can use an aquarium immersion heater. The next two things are optional, but they will make the project a lot more interesting. You might want to get about three 6A 200VDC SCRs. You can get these from Radio Shack. You might also want a simple square wave pulse generator. This can be just a simple 555 timer circuit. Make sure you can vary the frequency on it. This circuit is fairly easy to build. If you can`t get an SCR, you may also use a TRIAC as a substitute. If you can`t get either then you can use a relay, switch, or just two pieces of wire to trigger it. The contacts will probably be burned out soon though. The resistor or heater is used so that the power doesn`t need to be cut when you discharge the capacitor. It limits the current to a safe value when discharging the capacitor. If you choose not to use the current limiter, the power will have to be unplugged every time you discharge the capacitor. If you cannot find a heater or power resistor you can also use a common household lightbulb. This will also give you a visual indication when the capacitor is charged. The bulb will go out when the capacitor is fully charged.
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: