Extract of another SC article which deals with a simple programmable TCI with nearly the same trigger input circuits than DIY-CDI. Good for us, the trigger circuits are describted in more details than the DIY-CDI article. The DIY-CDI will not only will work with traditional points but will also happily function with any type of trigger signal incl
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uding those provided by factory and after-market reluctor, optical and Hall Effect distributors. It will even interface with an ECU ignition output trigger, making it a universal fit for all single coil cars, motorcycles and go-karts. It`s the ideal upgrade for an old points ignition system or it can be used to replace a defective factory ignition module for as little as one-fifth of the price. Reluctor: a reluctor trigger comprises a coil wound around an iron core. A ring magnet with small externally protruding sections (teeth) is installed on the distributor shaft. As each tooth of the magnet passes the sensor, a voltage is developed in the coil. These voltage spikes provide the timing signal. Incidentally, in place of the reluctor, a magneto signal can be used as a suitable trigger signal for this project. Optical: an optical trigger comprises a LED and a phototransistor or photo diode. The pair is incorporated within a package that allows the light from the LED to impinge on the photodetector. To switch the photodetector on and off, an opaque vane passes between the LED and its sensor. In addition to factory optical systems, this ignition caters for commercial optical ignition triggers such as those from Lumenition, Piranha and Crane. Hall Effect: a Hall Effect trigger is a semiconductor device that switches its output on or off, depending on the presence or absence of a magnetic field. Generally, the magnet is included...
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....
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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....
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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....
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