UNI-T UDP3000S-D User Manual page 22

The list mode and delayer are equipped with multiple output templates. The purpose is to facilitate users to
operate and save time. The following sections describe the parameters of each template.
4.5 List Mode Templates
The optional list mode templates include: sine, pulse, ramp, stair up, stair down, stair up down, exponential rise
and exponential fall.
1. Sine
The Sine waveform is as shown in the figure below.
The instrument determines the Sine amplitude according to the maximum and minimum currently set and
determines the Sine period according to the total number of points (maximum 2048) and the time interval
(maximum 99999) currently set.
After the waveform is constructed, set the number of cycles in the list mode interface to continuously output
Sine waveforms. The output time is determined by the product of the period and the number of cycles.
2. Pulse
The Pulse waveform is as shown in the figure below.
The pulse width t determines the high level duration. The period T determines the Pulse duration. The low level
time equals the period T minus the pulse width t (T-t).
The high and low level values determine the maximum and minimum amplitudes of the pulse.
3. Ramp
The Ramp waveform is as shown in the figure below.
The difference between the set maximum and minimum values and the time interval (maximum 99999) will
determine the slope of the Ramp waveform.
Symmetry indicates the proportion of Ramp waveform rise time to the whole cycle. The ramp-down time is
equal to the period minus the product of period and symmetry.
UDP3305S Series Programmable DC Power Supply User Manual
Sine waveform
Pulse waveform
Symmetry =t/T*100%
Ramp waveform