The rise time of the pulse signal refers to the interval between the two instants when the pulse instantaneous value first reaches the specified lower limit and the specified upper limit.Unless otherwise specified, the lower limit and upper limit are respectively 10% and 90% of the pulse peak amplitude.[1]In the control field, the rise time refers to the time when the response curve reaches the steady-state value for the first time from the zero time. It is usually defined as the time required for the response curve to rise from 10% of the steady-state value to 90% of the steady-state value.
In the control field, the rise time refers to the time when the response curve reaches the steady-state value for the first time from the zero time.Because some time does not overshoot, theoretically the time to reach the steady-state value needs to be infinite. Therefore, the rise time is also defined as the time required for the response curve to rise from 10% of the steady-state value to 90% of the steady-state value.[2]
The rise time of the pulse signal refers to the interval between the two instants when the pulse instantaneous value first reaches the specified lower limit and the specified upper limit.Unless otherwise specified, the lower limit and upper limit are respectively 10% and 90% of the pulse peak amplitude.[1]
Example
Announce
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As shown in the figure above, the solid line represents the ideal step pulse.The amplitude of this pulse jumps from 0V to 1.0V at an infinite speed, which is instantaneous.When this ideal step pulse is added to the input end of the network transformer, the output end of the network transformer will appear the pulse voltage waveform shown by the dotted line in the figure above.The output pulse slowly rises from 0V to 1.0V.
The time interval between the time when the output pulse rises to 0.1V and the time when it rises to 0.9V is the rise time of the network transformer.The rise time is usually denoted by τ r.
