Laser Circuits
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FIG 220V AC by the step-down transformer T, VD3 ~ VD6 bridge rectifier and a three-terminal voltage regulator blocks A2, stable 12V DC voltage output for digital integrated cir.. -
DC power supply is a helium-neon laser excitation power supply currently used the most common form of power, there is shown a laser printer used in the road, Tl as power transf.. -
Ql and Q2 switch the primary windings of transformer Tl via a square wave at a frequency determined by its magnetic properties. Diodes Dl and D2 provide base return paths for the feedback current of Ql and Q2. The output winding of T1 is connected to a.... -
The circuit uses a free-running push-pull dc to dc high voltage converter to get the necessary voltage for the laser plasma tube supply. The supply voltage Vc of this converter, is adjusted by a switch-mode power supply in order to keep the load current.... -
Circuit T as principle: In this circuit, a laser diode LED, as a light hair emitter, in addition to other properties may also be used similar light emitter laser diode substitu.. -
In the laser tube drive circuit are often provided with a photodiode, which generates a laser beam is proportional to the intensity (optical power) of the current, but in response to this type of photocell mostly relatively slow, generally can not track.... -
The laser diode·pulser is a simple drive circuit capable of driving the laser diode with 10-A, 20-ns pulses. For a 0.1 % duty cycle, the repetition rate will be 50 kHz. A complementary emitter follower is used as a driver. Switching speed is determined by.... -
This supply generates an initial high voltage for ignition purposes. After ignition, the supply generates about 1300 to 1500 V. If a higher ignition voltage (than the 6000 V supplied) is necessary,.. -
ICl is a 555 timer running at about 16 kHz. This IC drives Ql, a TIP146, which produces a 12-V square wave across Tl pri.. -
The circuit uses a 555 timer IC to power an ultrabright LED. The output is a pulsing red light that can be projected using lenses. An ultrabright Stanley LED, capable of 300-millicandle output, is tied to pin 3 of the 555 timer IC. That IC has been.... -
Driving Helium-Neon Lasers can be simplified considerably using This power-supply configuration. When power is applied, the laser doesn`t conduct and the voltage across the 190- resistor is zero. However, a resonant circuit and a voltage tripler then.... -
These two circuits provide bias for the microwave preamps shown in this text. The circuit in Fig. 51-5(a).. -
Wireless stepper motor speed control project using laser and IC555. Read to know about basics and circuit construction using a wireless stepper motor which has speed control through laser and IC 555 .. -
Ql and Q2 switch the primary windings of transformer Tl via a square wave at a frequency determined by its magnetic properties. Diodes Dl and D2 provide base return paths for the feedback current of Ql and Q2. The output winding of T1 is connected to a.... -
Many areas of scientific research and industrial production require vacuum conditions - where most (or as much as possible) of the air has been removed leaving little or nothing behind. While written specifically for the needs of home-built gas lasers, much.... -
Transmitting Voice Wirelessly Using Laser, Tips & Tweaks, Windows tips and tweaks to enrich your computer operating system experience .... -
Want to send your audio information via a light wave across the room I built this simple circuit with some modifications that transmits an audio signal via light. The signal simply amplitude modulates the light intensity (aka AM) of a LED and a receiving.... -
The circuit below is similar to the one above but can be used with a laser pointer to toggle the relay rather than a push button. The IR photo transistor Q1 (Radio Shack 276-145A) or similar is connected to the set input (pin 6). The photo transistor should.... -
This circuit shows about TLV3702 Laser Pointer Sensor Circuit Diagram . Features: such as starting a robot, perfectly functional for controlling a .... -
Usually, semiconductor laser diodes are operated from current drives. Unfortunately, The output power is strongly dependent on the device temperature ? a... -
Basically I used the parts list that is on the first page of the Make Magazine article. But that list is for the harp which has 6 lasers so most quantites can be just 1. .. -
This schematic below was built using a 2-layer evaluation board for the AD9662 3-Channel Laser Diode Driver,this device are used mainly for high performance CD-DVD recordable drives and laser diode current switching.. -
I am about to post a How To on testing DDL`s circuit before adding the LD, I hope it is all pretty clear and with no errors. Those .... -
The temperature controller must meet some unusual requirements. Most notably, because of ambient temperature variation and laser operation uncertainties, the controller must be capable of either sourcing or removing heat to maintain control... -
With these, you can make your very own security system that gives intruders a sporting chance! It`s the laser-version of saying But before I kill you, Mister Bond This laser tripwire system will trigger an audio alarm (made from a 110dB piezo personal.... -
The speed of light has been measured many different ways using many ingenious methods. The following note describes a method which is conceptually very easy to understand and fairly easy to implement. The technique is the simple time-of-flight optical pulse.... -
The transmission distance can be increased greatly by replacing the transmitter`s red LED with a cheap red laser diode purchased from a $2 Dollar Shop . The circuit design makes a compromise between laser brightness and sound quality and loudness. This is.... -
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.... -
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....
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
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