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Edge-triggered synchronization
Edge-triggered synchronization
D.E.V.I.C.E. is an encyclopedia of terms used by manufacturers of test and measurement equipment. T&M Atlantic created this service to better explain the functionality of instruments it offers, and to highlight the latest developments in the world of measurement equipment. We are using such tools as animation to bring words and pictures to life and to create not just an understanding but also an appreciation for technology that goes into the design of every instrument.
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An edge trigger occurs when the input signal crosses the specified voltage level in the chosen direction.
Depending on the functionality of oscilloscope capabilities the trigger can occur on rising, falling or rising & falling edge. The conditions for the trigger is the edge direction, the trigger source, trigger level is usually shown at the bottom of the screen.
Thus the following picture shows the rising edge trigger, the trigger source is CH1 channel, the trigger level = 0 V:
The next picture shows the rising edge trigger, the trigger source is CH1, the trigger level is 4.08 V:
In the picture below you can see the falling edge trigger, the trigger source is CH1 channel, the trigger level = 0 V:
This is the most widespread variant of synchronization.
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