PeakTech 4105 Bedienungsanleitung Seite 91

00~04 are standard common waveforms (Sine, Square, Ramp, Pulse and Noise), 05~09 are
5 user-defined arbitrary waveforms, allows to be saved by users after creating with
software. 10~59 are 50 built-in arbitrary waveforms which are used in special occasion.
Press 【W aveform】 key to see the first page of the list, and then continuously press 〖More〗
softkey to see the rest of the list. Select one desired in sixty then waveform diagram is
shown but which is just a sample one with lower resolution. Observe and test the output
waveforms using oscilloscope.
5.2.2 Set duty cycle (Square)
The duty cycle represents the fraction of time per cycle that the square wave is at a high
level. Press 【Waveform】key and choose Square, press 〖 Duty Cycle〗 softkey after
selecting 【 Continuous】 key then set the desired value of duty cycle. Usually, the duty cycle
value remains unchanged if the Square frequency is changing, but duty cycle is limited by
the edge time if output frequency is too high, which should comply with the below formula:
50ns≤(Duty Cycle×period)≤(period－50ns)
5.2.3 Set Symmetry (Ramp)
Apply to ramp waves only. Symmetry represents the fraction of time per
cycle that the ramp wave is rising. After selecting the ramp, p ress 〖 Ramp Symmetry〗then
set the desired value of symmetry. The symmetry will remain unchanged if output frequency
is changing. Rising Ramp will be shown when symmetry is 100%, falling ramp will be shown
when symmetry is 0%, triangle wave display when symm etry is 50%.
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