The circuit that allows you to expand from one 15 pin d-sub VGA output to multiple others. I built upon the schematic found online here and expanded it to allow up to 6 monitors connected at once! The input VGA connector is on the left while the 6 output VGA connectors are on the right side. The circuit is very simple though th
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ere are a ton of wires. It basically uses 5 transistors per output connector. The boxes in the middle are quad ECG2322 transistors so I needed a total of 8 to get the 6 monitors. The amazing thing about this circuit is that I could have kept going. You can hook up as many monitors as you want, I just limited myself to 6. The reason we can keep connecting is that the circuit draws very very little current (nearly zero) from the input source due to the input connecting to the base of the transistor. The base current near zero does not let current enter the right half of the circuit. Thus, the right half is powered by a 5 volt source which I stole from the PC power supply. Check out the original webpage for a more detailed explanation. I used Orcad Capture 9. 2 to generate the schematic.
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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