There are plans to make it 1Gsps in the future, using interleaved ADCs and staggered clock, but that`s beyond me at the moment, so the first iteration will only have 100Msps (fastest from single ADC). The part I`m most unsure about is the analog front end, as we haven`t done any high speed circuit design in classes yet, so most of my knowledge com
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es from random places on the internet. Would be great if anyone wants to take a look Input from BNC probes go into a 1Mohm resistor in parallel with 20pF (so the probes can compensate for it). The signal is buffered by a wideband, unity-gain stable JFET op amp (OPA656), before being fed to a summer (the pre-amp of the programmable gain amplifier), that adds a bipolar offset from a DAC to the signal. Then it goes to a programmable gain amplifier, and finally the ADCs. The problem with that front end is that there is that the input overload protection will blow very easily. Any overvoltage input is directly shorted by the diodes - bad news! Perhaps, with modifications, it could be used as a digitizer card for SDR (software defined radio, GNUradio in particular) 100Msps is very fast for a continuous capture digitizer card. The analog requirements are much simpler - 50 ohm or 75 ohm input, perhaps only a 500mVpp to 5Vpp or so input amplitude range, and much less need for overload protection. In power electronics, transistors should ideally be either fully on or fully off, because a half-on transistor just makes a really poor imitation of Tiffany Yep. The problem with that front end is that there is that the input overload protection will blow very easily. Any overvoltage input is directly shorted by the diodes - bad news! I`m doing internship right now (as a software developer), so this is my evening and weekends project....
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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