Due to the lack of speed in the entire series TTL monostable multivibrator, and because of the requirements of ECL voltage swing wide range of small and power, which drives us to use F series circuit having a fast transition
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time and the small transmission delay. This creates a compact portable fast optical pulse generator for high-speed photomultiplier used in gamma-ray astronomy research conducted field tests. Use only two integrated circuit helps reduce size and power consumption (Figure 1). The output of gate G4 in the IC2 output pulse having a normal high of about 2.5ns rise and fall time and pulse width of less than 10 ns, which is equivalent to three gate delays. These pulses are very suitable for low cathode potential HLMP-CB-15 high-speed blue LED, and the LED anode is clamped to 5V. G4 forcing almost the entire 5 V supply voltage is applied to the LED, such a large voltage swing can be sure that the insulation displacement connector at the edge of a small printed circuit board with the best LED brightness. Rechargeable battery fixed to the printed circuit board on the other side. The circuit uses CMOS timer IC1, consumes less than 4 mA current. alt="LED fast optical pulse generating circuit diagram">
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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