pulse generator


Also found in: Dictionary, Thesaurus, Medical, Legal, Wikipedia.
Related to pulse generator: Signal generator, Function generator

pulse generator

[′pəls ‚jen·ə‚rād·ər]
(electricity)
(electronics)
A generator that produces repetitive pulses or signal-initiated pulses.

Pulse generator

An electronic circuit capable of producing a waveform that rises abruptly, maintains a relatively flat top for an extremely short interval, and then rapidly falls to zero. A relaxation oscillator, such as a multivibrator, may be adjusted to generate a rectangular waveform having an extremely short duration, and as such it is referred to as a pulse generator. However, there is a class of circuits whose exclusive function is generating short-duration, rectangular waveforms. These circuits are usually specifically identified as pulse generators. An example of such a pulse generator is the triggered blocking oscillator, which is a single relaxation oscillator having transformer-coupled feedback from output to input.

Pulse generators sometimes include, but are usually distinguished from, trigger circuits. Trigger circuits generate a short-duration, fast-rising waveform for initiating or triggering an event or a series of events in other circuits. In the pulse generator, the pulse duration and shape are of equal importance to the rise and fall times. See Trigger circuit

The term pulse generator is often applied not only to an electronic circuit generating prescribed pulse sequences but to an electronic instrument designed to generate sequences of pulses with variable delays, pulse widths, and pulse train combinations, programmable in a predetermined manner, often microprocessor-controlled.

A network, formed in such a way as to simulate the delay characteristics of a lossless transmission line, and appropriate switching elements to control the duration of a pulse form the basis for a variety of types of pulse generators. Some delay-line-controlled pulse generators are capable of generating pulses containing considerable amounts of power for such applications as modulators in radar transmitters. See Wave-shaping circuits

References in periodicals archive ?
First, the procedure of the developed UWB digital pulse generator is as follows.
The pulse generator is powered by a small, lithium carbon monofluoride battery that typically lasts 8 to 12 years depending on the stimulation parameters.
Selected specifications of the pulse generator are listed in Table 1.
Over the last 20 years, Quantum has become an internationally recognized pioneer in the electro-optics market place with the design and development of a precision pulse generator line and as a provider of custom laser systems for micromachining applications.
The High Voltage Pulse Generator is suited to a variety of "short pulse" applications requiring up to 25 kW average power at up to 25 kV, pulses from 500 ns to DC, and pulse frequencies up to 10 KHz.
A high-performance, programmable pulse generator with the flexibility to perform over a wide range of frequencies, edge rates, and amplitudes can be a highly useful tool in an R&D lab, given science's growing reliance on electronic data analysis and acquisition.
The TWT grid pulse generator is a floating deck type using power MOSFETs.
Pulsar pulse generator system (A) - move the beckwood 150 ton hydraulic press to gain access to the press.
8220;From the internal pulse generator to the q-switch trigger, this little device is the end all solution for getting your laser system up and running.
The pulse generator won a majority of the delegate votes because it has helped the development of so many successful products.
Currently, while surgeons implant the electrode, only an external pulse generator is used for quick tests to ensure that the device's position will indeed deliver therapeutic effect.