Laser Circuits
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The circuit presented is a low-cost laser-diode driver with current limiting and a lasing monitor for safe operation of the laser. The driver provides temperature stabilization using a built-in thermoelectric-cooler (TEC) controller. This circuit is designed.... -
Laser torch is cheap and has high cost performance. The main feature is the excellent performance of the condenser, and the optical rangeis up to 1200m ~ 1500m, and the spot is still small from a few hundred meters in visual observation, so it is widely used.... -
This circuitry zooms in magnification of 1200000 times, the bandwidth is 0.5~14 Mhzs, the input impedance is 700 ?, the output impedance is 35 ?(to measure in the 5 MHZ), the output level of noise is 0.6~0.8 V. In the chart, T1 and T2 are direct coupling.... -
This figure illustrates a way in which a momentary 10-kV voltage pulse can be generated to initiate the plasma discharge across the laser tube. A Diode voltage-multiplier circuit is connected in series with the main supply and obtains its input power across.... -
The amplification of this circuit is about 12000 times, the bandwidth is 0.5~14MHz, the input resistance is 700?, the output resistance is 35?(measured with 5MHz), the output noise level is 0.6~0.8V. In figure, T1, T2 are direct coupling amplifier, they are.... -
We can use a voltage-controlled current source to implement a laser diode driver. Compared with a a Switched (PWM) drivers, this simple linear laser diode.... -
In this project we`ll be using the ATMEGA16 @16MHz. But as every project. it must have something special, something to be able to look different from other. But what I `ve seen many robots with photosensors (photovore, photophobe), many linefollowers, many.... -
Interferometer is best used in calculating the index of refraction of gasses and transparent matter (i. e. air and glass). Doing so requires counting each interference circle one by one. As a matter of fact, getting a precise measurement requires counting up.... -
CW operation up to 350mA from 2. 8. 6V supply voltage TTL modulation frequency up to 10KHz, with adjustable duty cycle. Rapid soft start after power-on. Simple power adjustment via the external resistor... -
With transistor switching circuit shown for RCA SG2007 laser diode, pulses as short as 10 ns are possible at repetition rates above 100 kHz. Used in optical communication system in which fiber bundle or singlefiber is attached directly to laser pellet. -J..... -
Measuring distances using a modulated laser. The circuit I created (see above) is very simple and does not need many explanations. The first part consists of a fixed voltage regulator 7805 to derive a stable +5 V source. This is followed by a LM317.... -
The Pulsed Multiple Gas (PMG) laser described in this chapter is very similar in many ways to the Home-Built Pulsed Argon and/or Krypton (Ar/Kr) Ion Laser from Scientific American. However, the developers of the PMG laser have also used it with xenon (Xe).... -
This chapter contains circuit diagrams for several power supplies for pulsed solid state lasers. These include units suitable for driving the popular Hughes ruby and YAG rangefinder laser assemblies as well, one using the flash from a disposable pocket.... -
This LASER is constructed on a polystirene sheet. An alluminium layer foil is placed and acts as a ground plate ( - ), this is important for preionization (i will discuss it later). After that the dielectic is placed on it leaving 1 cm from each border of....
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.....
Popular Circuits
A Class A // Class AB amplifier rated 100 Watts when driving a 4 ohm loudspeaker. This circuit...
A nice circuit for using with audio preamplifiers, or any other circuit that use potentiometer...
Both parts of the circuit are biased with the constant current sources as shown, and the signal...
This circuit was designed for testing fuel cells, but it could also be used for testing batteries...
High quality audio amplifier for computer circuit diagram. The electrical circuit of the...
The circuit is here as it is of high educational value. I have not tested it. You can `simulate...
Many people experienced sleeping well in natural surroundings, into a tent or a wooden hut. This...
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The car battery charging current is automatically limited to 4. 2A. If there is a 600mV voltage...
The RT320 and RT321 Clansman HF sets are designed for Upper Side Band (USB) operation only. This...
There are two independent modeling light circuits for the P2000D - one for each of the two...
Circuit shown in Figure, LD168 is a flash of tape recorders speaker for sound level indication...