User’s Manual xLogic SuperRelay
49
Timing diagram
T
L
= 0; N = 1
Description of the function
With the change at input Trg to 1, the time T
L
(time low) is triggered. After the time T
L
has expired, output Q is set to 1 for the duration of the time T
H
(time high).
If input Trg is retriggered prior to the expiration of the preset time (T
L
+ T
H
), the time Ta
is reset and the pulse/pause period is restarted.
3.4.7 Asynchronous pulse generator
Description of function
The pulse shape at the output can be modified via a configurable pulse/pause ratio.
Connection Description
Input
You enable/disable the asynchronous pulse generator with the
signal at input En.
Input
The Inv input can be used to invert the output signal of the
active asynchronous pulse generator..
Parameter
TL,TH: You can customize the pulse (TL)/ pause (TH) ratio.
Retentivity set (on) = the status is retentive in memory.
Output
Q is toggled on and off cyclically with the pulse times T
H
and
T
.
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