Tabor Electronics 5251, User Manual

Page: 83 / 298

3
ArbConnection
The Control Panels
3-31
Half Cycle
The Half Cycle panel contains controls that select the half cycle
functions and adjust the half cycle parameters.
The half cycle functions are generated with variable and
controllable delay between the halves. If triggered mode, one half
at a time is generated as a result of a trigger signal regardless of
the programmed delay value. The half cycle functions have
different limitations compared to the standard functions; These are
listed in Appendix A. The half cycle panel and the various
parameters that control these functions are described below.
Figure 3-21, the Half Cycle Panel
Shape
The shape group has controls that select the shape of the half cycle
function. You may select from sine, triangle and square shapes. If
you do not modify the start phase parameter, the half cycle sines
and triangles will start from phase 0
°
and will stop at phase 180
°
.
The second half cycle will commence at the end of the time interval
that is programmed with the delay parameter.
Parameters
The parameters group has parameters that control frequency,
amplitude, offset and delay. In this group, you can also program
the sine and triangle start phase and the duty cycle of the square
waveform.
Note that the frequency value is a bit different than the standard
frequency parameter because it describes the frequency as if the
two halves were combined (which is never the case). Since two
halves are always separated by certain delay, the frequency value
has a meaning as if the two halves were truncated.