trigger circuit

trigger circuit

[′trig·ər ‚sər·kət]
(electronics)
A circuit or network in which the output changes abruptly with an infinitesimal change in input at a predetermined operating point. Also known as trigger.
A circuit in which an action is initiated by an input pulse, as in a radar modulator.
References in periodicals archive ?
This compact solution contains the flash lamp, trigger circuit and power supply in an EMI-suppressant enclosure.
The Schmitt Trigger circuit has been widely used in the input buffers to increase noise immunity.
Several patents have been filed that describe oscillators in which the phase can be instantaneously altered in response to a control signal, such as the output from a trigger circuit.
Using a trigger circuit, this information can be transformed easily into a binary signal and be used for further evaluation in the ECU, schematically illustrated in Figure 5.
The Chinese authorities' seemingly capricious decision last week to trigger circuit breakers, and then to rapidly remove them, added to the chaos in the country's stock exchanges and intensified unease about the world's second- largest economy and its commitment to free markets.
A semiconductor switch replaces the traditional sync contacts, ending scorching and frictional wear while at the same time increasing the limit for trigger circuit voltage to 250V.
The voltage threshold for the trigger level in use by the trigger circuit can be compared to the region proximate the trigger location in the acquisition record to determine by further local interpolation the precise location in the acquisition record where the triggering event should have occurred.
These include Current Mode Control with integrated overshoot-minimizing, MOSFET temperature sensing via internal sensors for immediate shutdown by the trigger circuit in case of critical depleting-layer temperature (thermal shutdown), and an integrated "under-voltage lockout" function (UVL) to prevent destruction of the CoolMOS by incorrect triggering-voltage levels.
A high-speed direct bootstrapped CMOS Schmitt trigger circuit.
Nevertheless, the trigger circuit typically has a different bandwidth and sensitivity than the signal channel preamplifiers, so time alignment is compromised.
Asay explained, "Infiniium oscilloscopes exclusively use analog triggering for scope channels, a combination of software- and hardware-based triggering for protocol, and a digital trigger circuit for mixed-signal oscilloscope channels.
Applications for these nitride (AlGaN/GaN) double barrier heterostructure based tunnel diodes included local oscillators for UHF television tuners, trigger circuits in oscilloscopes, high speed counter circuits, and very fast rise time pulse generator circuits [1, 3].