In
electronics
The field of electronics is a branch of physics and electrical engineering that deals with the emission, behaviour and effects of electrons using electronic devices. Electronics uses active devices to control electron flow by amplification ...
, a signal edge is a transition of a
digital signal from low to high or from high to low:
* A rising edge (or positive edge) is the low-to-high transition.
* A falling edge (or negative edge) is the high-to-low transition.
In the case of a
pulse
In medicine, a pulse represents the tactile arterial palpation of the cardiac cycle (heartbeat) by trained fingertips. The pulse may be palpated in any place that allows an artery to be compressed near the surface of the body, such as at the ...
, which consists of two edges:
* The leading edge (or front edge) is the first edge of the pulse.
* The trailing edge (or back edge) is the second edge of the pulse.
See also
*
Flip-flop (electronics)
In electronics, a flip-flop or latch is a circuit that has two stable states and can be used to store state information – a bistable multivibrator. The circuit can be made to change state by signals applied to one or more control inputs and ...
, an edge-triggered circuit
*
Rise time, for a signal transition
References
Digital electronics
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