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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....
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IC1 forms an oscillator driving the infra-red LED by means of 0. 8mSec. pulses at 120Hz frequency and about 300mA peak current. D1 & D2 are placed facing the car on the same line, a couple of centimeters apart, on a short breadboard strip fastened to the....
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Monostable multivibrator circuit produce a fixed pulse-width when the input is triggered. The input is fed to CR1, which should be an open collector source since the TR1 would short the input to ground during the active state appear on this circuit`s output.....
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Electronics Tutorial about the Monostable Multivibrator Circuit also known as a One-shot Monostable Multivibrator used as a Pulse Generator Circuit....
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The circuit of this device is quite simple: an input circuit filters the signal provided by the antenna to reduce sensibility to other phenomena and protects against over voltages. The four transistors realize a "one-shot" section that is triggered by the....
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Produce the varying sampling clock write strobe pulses. So, I settled with this semi-optimal but working design applying an ATtiny2313 microcontroller from Atmel. For a 10MHz sampling clock, I need a 20MHz clock for the ATtiny2313and hence it needs to be....
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The system consists of two parts: the Arduino board that detects the led pulses and sends the data via the XBee module, and a PC that recive the data through a USB/Xbee module and processes the data with LabVIEW so you can prepare and study the consumption....
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This circuit "cheats" by using only two J-K flip-flops to make a three-bit binary counter. Ordinarily, three flip-flops would be used - one for each binary bit - but in this case we can use the clock pulse (555 timer output) as a bit of its own. When you....
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If you want a 1MHz square wave, I would suggest using a higher frequency crystal and dividing it down, for two reasons: (1) 4MHz crystals are apt to be cheaper and easier to find than 1MHz ones; (2) Getting a 50. 0000% duty cycle from a crystal is a bit....
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Provides full range of brightness control for up to 500w of lamps. Ujt Q1 provides turn. on pulses for scr-L. Stern, "Thyristors Provide New Opportunities for Electronic Applications in the Home, " Motorola Application Note AN-141, Dec. 1965. ..
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This is a simple 4 W fluorescent lamp driver circuit that can be operated from a 12 V supply. The first part of the circuit includes a NE555 timer IC wired as an astable multivibrator. The output pulses from the IC are amplified by the transistor Q1. The....
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Electric fence control circuit is composed of the power supply circuit, pulse generator and high-voltage circuit, and it is shown in Figure 4-27. Power supply circuit is composed of the power transformer Tl, rectifier diodes VDl, VD2, filter capacitors Cl,....
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A Peak Detector is any circuit that functions to detect the peak voltage of an incoming waveform. Basically the circuit is used as an Amplitude Modulation [AM] detector, Pulse Amplitude Modulation [PAM] detector or Envelope detector. The particular circuit....
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This circuit generates speed pulses from the speed-dependent voltage spikes generated by commonly used types of PC power supply fans, which are superimpos....
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LM555 timer circuit is similar to the one above but employs two stages so that both the pulse width and delay can be controlled..
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This is a circuit that used to main pulse. The pulser is intended to switch the mains voltage on and off at intervals between just under a second and up to 10 minutes. This is useful, for instance, when a mains-operated equipment is to be tested for long....
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A multivibrator which generates square waves of its own (i. e without any external trigger pulse) is known as astable multivibrator. It is also called free ramming multivibrator. It has no stable state but only two quasi-stable (half-stable) makes....
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The infrared detector module (GP1U52X) (Radio Shack 276-137) provides a 5 volt TTL pulse train corresponding to the digital code to the button of the remote control. In the lower circuit, the module output normally low a signal and a positive going pulse....
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The combination of controller IC LM4651 and LM4652 Class D MOSFET power amplifier IC power amplifier solution provides a high efficiency, suitable for powered speakers, subwoofers and amplifiers car quality. The LM 4651 is a fully integrated conventional....
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The techometer also called revolution counter is an instrument that measure the speed of a rotating machinery. Generally these measurements are rated in revolutions per minute (R. P. M). In this project we have decided to make our own sensor using a led as....
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The figure shows a simplified schematic diagram of main circuit DMA12. It is mainly composed of input circuit and electromagnetic interference (EMI) filter circuit, impulse current limit circuit, the input rectifier filter circuit, the boost / power factor....
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This circuit reproduces the starting light sequence currently used by FISA for Formula One racing. It could be used with slot car sets (such as HO scale AFX/Life Like/Tyco sets) or radio controlled cars. IC1, a 555 timer IC, is used as a clock pulse....
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Fig a shows a multivibrator circuit which can generate square wave signal; Figure b is a flip-flop circuit which uses the under edge of the input signal to generate a trigger pulse signal. Figure c is a monostable circuit which can be used for waveform....
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In the 555 datasheet they have a pulse width modulation circuit similar to this with the only difference being that they have pin 5 labelled as `audio ....
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Most dimmers use pulse width modulation (PWM) to control the amount of power that is delivered to the lamp. Those that come bundled with a switch faceplate control the firing angle of a Triac on the 240V mains side. These work fine with resistive loads but....
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The 555 timer will put out positive pulses. The pulse width is inversely proportional to the difference in voltage between the voltage at "ANALOG IN" and the voltage of the 4. 7uF capacitor(let`s say 2. 5 volts). To calibrate this circuit, hook it up to a....
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I used a main part and 2N3055 Transister and IC TL072 for pulse oscillator generator. The output have voltage +50V and -50V at 2A to 3A. You must is used this....
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The 0-to 130-V voltmeter and neon "AC PWR" lamp provide an average indication of the ac power. The fuse and metal oxide varistor(MOV)protect the monitor against overvoltage spikes. Four 1N4004 diodes rectify the ac voltage, generating negative-going pulses....
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As shown in the block diagram above, the 10 MHz signal is produced by an oven-stabilized 10 MHz crystal oscillator that is locked by a phase-locked-loop circuit (PLL) against the precision 10 kHz signal generated by the GPS receiver module. In addition to....
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This is circuit that first introduced by Signetics Corporation as the SE555/NE555 about 1971. Pin connections and functions: (See schematic below for basic circuits). Pin 1 (Ground) The ground (or common) pin is the most-negative supply potential of the....
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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,....
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As already explained, a monostable multivibrator (MMV) has one stable state and one quasi-stable state. The circuit remains in its stable state till an external triggering pulse causes a transition to the quasi-stable state. The circuit comes back to its....