This is a project for a versatile, digital signal processor (DSP) based generic driver and controller circuit for Solid State Tesla Coils (SSTCs). Support for all new topologies (DRSSTC, OLTC, PLL-SSTC, . ) can be implemented programmatically. The same controller can serve to debug switch mode supplies, by functioning as a PWM signal generator. Thi
Click here to download the full size of the above Circuit.
s DSP controller board will use one of Motorola/Freescale`s miniature hybrid controllers of the 56800E series (56F8322, datasheet ). These are very small microcontrollers with a DSP core, running 60 MHz with 60 MIPS (17ns per instruction). The 56F8322 is preferred to others of the 56800E series as it has an on-board 6-channel PWM module and 6 timers, and is on Sample Order status. The final version of the DSP board will allow you to: operate as a feedback SSTC with immediate frequency tracking, including programmable hard limiting of output frequency range (e. g. min 50kHz max 200kHz), and automatic SSTC restart `kicks` The optical serial communication link is achieved with a relatively cheap TFDU/TFDS/TFDT4100 IrDA transceiver module being `mis-used` for normal serial data bit encoding instead of the IrDA pulse-length encoding. The TFDU4100 has an internal transmitter diode with drive circuitry, and a receiver diode with gain control and amplifier for digital output, so it is simpler to use the module than a bunch of discretes. The PC side will need a second TFDU4100, plus some small circuitry to convert to 0V and 5V (never mind the `official` RS-232 signal levels :-). The board output lines are driven by the open-collector 74LS07 / SN7407 logic buffer that allows up to 30V output signal levels and has a typical or max transition delay of 20ns. 10kOhm pull-up resistors are already included on the DSP board. 2) the DSP56858...
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: