Pulse generation by interrupting a light beam
Posted on May 5, 2012
New Circuits
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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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This circuit is used to measure the voltage on a 12V (nominal) lead acid rechargeable battery...
The MAX6953 from Dallas Maxim is a compact cathode-row display driver that interfaces a...
This may be the simplest LED flasher circuit you can build, with the notable exclusion of LED's...
Often a need arises for connection of two telephone instruments in parallel to one line. But it...
The 741 op amp integrator signal is fed into the Schmitt trigger input of an inverter. When the...
A2N3819 FETprovides a solid-state VOM. The 2N3819 acts as a cathode follower in a VOM. The bias...
Motorola SN54/74LS138 known to be 1-of-8 decoder or demultiplexer which is designed for high...
This a application circuit for calibration. This circuit is called high voltage AC calibrator...
Voltage controlled oscillator (VCO) is similar to a voltage to frequency converter (VFC), an...
The schematic of the updated power filtering on the R2 PCBs. One of each of the 100n capacitors...
The circuit diagram shown here is a simple circuit DC power delay, which is based on an SCR...
The circuit diagram given here is of a stepper motor driver using MC3479 from Motorola. The...
The vertical line indicates the instance of the 5th harmonic filter connection Figure 3. Diagram...
This web page describes the radio transmitter unit that flew aboard the Cirrus One rocket in...
Automotive electronic locks circuit principle is shown in Fig. ICl dedicated lock IC 5G058, it O...
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