Basic Waveform Output
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Copyright © Qingdao Hantek Electronics Co., LTD HDG3000B User manual
23
Pulse width/duty cycle
Pulse width is defined as the time from the 50% threshold of a rising edge amplitude to
the 50% threshold of the next falling edge amplitude as shown in the figure above.
The settable range of the pulse width is limited by the "Minimum Pulse Width" and the
"Pulse Period" (for the ranges of the "Minimum Pulse Width" and "Pulse Period", please
refer to "Signal Characteristics" in Specifications). The default value is 100μs.
1. Pulse Width ≥ Minimum Pulse Width
2. Pulse Width ≤ Pulse Period - Minimum Pulse Width
Pulse duty cycle is defined as the percentage that the pulse width takes up in the whole
pulse period.
The pulse width and pulse duty cycle are correlative. Once a parameter is changed, the
other will be automatically changed. The pulse duty cycle is limited by the "Minimum
Pulse Width" and "Pulse Period".
1. Pulse Duty Cycle ≥ Minimum Pulse Width ÷ Pulse Period × 100%
2. Pulse Duty Cycle ≤ (1 - Minimum Pulse Width ÷ Pulse Period) × 100%
Press [Wave] > Pulse softkey to select the pulse wave function and press Width
softkey to highlight it. At this point, use the numeric keypad to input the value and select
the desired unit from the unit menu that pops up, or use the direction keys and knob to
modify the current value.
1. For the input method of the value, refer to the introduction in "Parameter Setting
Method".
2. The width units available are sec, msec, μsec and nsec.
3. Press [Utility] > Units softkey and press Width/Duty softkey to change Width in
the parameter to Duty. Press [Setting] > Duty softkey to modify the duty cycle
parameters.
Leading/Trailing Edge Time
The leading (rising) edge time is defined as the time required for the pulse amplitude to
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