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Light Laser LED Circuits
Laser Power Supply
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
Bias Supply For Microwave Preamps
These two circuits provide bias for the microwave preamps shown in this text. The circuit in Fig. 51-5(a)
Fantastic Simulated Laser Circuit
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 configured as an astable multivibrator. The frequency of this multivibrator is controlled by Rl, R2, CI, and PI. You can vary the frequency by...
Laser Power Supply And Starting Circuit Circuit
This circuit delivers 10 kV peak, then limits current to 7.5 mA @ 2 kV. The resistors shown provide ballasting.
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 multiple section voltage multiplier. That multiplier consists of capacitors Cl through C5 and diodes D3 through D6. Resistors R3 and R4...
High-speed laser diode driver
A faster driver can supply higher peak gate current to switch the VN64GA very quickly
Handheld Laser Circuit
A laser diode TOLD9200 (Toshiba) is used as a source of laser light. Q3, Q2, and SI form a touch switch to control the.laser. LI is an RF pickup coil to pick up energy from an RF-type battery charger.
Laser Power Supply Circuit
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,
Laser diode pulser
This drive is capable of driving the laser diode with 10 ampere, 20 ns pulses. For a 0% duty cycle, the repetition rate will be 50 kHz. A complementary emitter-follower is used as a driver
Efficient Laser Supply Circuit
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 produces over 10 kV to turn on the laser.
The laser diodeÂ·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 the h of the bipolar transistors used and the impedance of the drive source. A faster drive circuit is shown. It can suwly higher peak...
Stabilizing a laser discharge current
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 constant, at set value. The linear opto-electronic isolator U2, connected in series with the laser plasma tube, gives a voltage Vp proportional...
The aim of this project is to transmit analog sound from a commercial mp3 player digitally using a store-bought laser pointer as the transmitter. This will be achieved mainly by performing analog-digital conversions, and by using a digitally phase-locked loop (DPLL) to synchronize the clock signals on both the transmitter and the receiver. This pr
Galvanometer control circuit with improved performance and controllable gain
laser controller circuit
Development of the whole system required an exhaustive identification of all processes of the laser controller. I started with this diagram which outlines the major physical components that will be used for the cnc laser. The laser has a power supply, a db-25 connector which reports various states of the laser, gas lines which are controlled by so
Laser Door Alarm Circuit
This laser door alarm is based on the interruption of Laser beam. A low cost Laser pointer is used as the source of light beam. When somebody breaks the la..
A Thermoelectric Cooler Temperature Controller For Fiber Optic Lasers
The AD9662 Laser Diode Driver Evaluation Board Schematic and Datasheet
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
Laser Beams and 555
Laser Diode Driver
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..
Solid laser range finder reception circuit
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 connected into parallel current negative feedback. Zener diode 2CW11 improves T2 emitter level, i..
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 the h of the bipolar transistors used and the impedance of the drive source. A faster drive
Compact DWDM laser Temperature Control with the MAX8521
Compact thermal control solution for DWDM (Dense Wavelength Division Multiplexing) laser modules can be made using a MAX8520/21 and a single op amp..
Thermoelectric Heat Pump for Laser Diodes Stabilization
Usually, semiconductor laser diodes are operated from current drives. Unfortunately, The output power is strongly dependent on the device temperature ? a.
home built laser system
I have developed an inexpensive control system (less than $70) that can be used to both get more cutting power out of a DC discharge laser and significantly improve cutting accuracy for home built laser systems. The control system implements a control technique known as Pulse-Per-Inch (PPI) control. PPI control involves pulsing the laser every tim
Artificial Intelligence Tool and Electronic Systems Used to Develop Optical Applications
Complete SS Laser Power Supply Schematics
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 camera, and a high energy flashlamp power supply for that 8 inch long surplus NOVA laser rod you
Complete Ar/Kr Ion Laser Power Supply Schematics
This chapter provides detailed schematics of a variety of power supplies suitable for use with the common Ar/Kr ion tubes available to the hobbyist on the surplus market. Included are examples of commercial designs (Omnichrome 150R and 532 head, Lexel 88 and head) as well a somewhat simpler but fully capable system for small air-cooled ion tubes (
40khz laser burst detector
This circuit was originally designed to detect weak flashed of laser light bounced off of a fabric video projection screen. It was used as part of a firearm training system. It generates a 100mS output pulse whenever it detects a 3ms to 5ms-laser burst, modulated at 40KHz. It is very sensitive and could be modified for long-range laser communicati
make the laser harp of the intention by oneself
HELIUM NEON LASER SUPPLY
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 one of the voltage-multiplier diodes in the main supply. The voltage across this diode is typically 1..
Laser Listening Device
Second, I have found that when the receiver was centered in the brightest spot (middle) of the reflected laser beam the circuit worked poorly compared to when the receiver was placed off-centered. This probably indicated that the circuit was saturated when the receiver was centered. And when it was off-centered, the circuit was able to analyze the