This video “LTspice Pulse Voltage Source Setup Parameters” shows how to place a voltage source on an LTspice schematic and set up the pulsed voltage source parameters, including rise time, fall time, pulse period, initial delay time, and the Ncycles parameter to specify how many pulses get generated. Even better, there are clearly labelled graphics showing what these pulse train signal terms and parameters are in general. This video tells you how to get a finite number of pulses, or an ongoing pulse train.

The URL for the YouTube channel “First and Second Order Circuits and Equations” is:
www.youtube.com/@Gufo377
You will find both circuit simulation software tutorials as well as basic circuit theory tutorials.

The circuit theory of RC circuits, like the one used in this video, are covered in very helpful detail, including derivations and intuitive insights, in this book:
“First and Second Order Circuits and Equations – Technical Background and Insights, which is available from John Wiley & Sons
ISBN: 978-1-119-91353-5
[ Ссылка ]
Step response for this series RC low-pass voltage driven circuit is introduced on page 60 and described in terms of switches on pages 149 and 150. Intuitive analysis of this RC step response is shown on pages 177 to 180. Detailed mathematical derivation of this RC step response, using a particular solution to solve the differential equation, is shown on pages 181-184. A pulse train response simulation example, using the QUCS simulator and multiple time constants, is shown on pages 156-157.

00:00 Introduction
00:10 Pulse Train Overview
00:22 LTspice Voltage Source Demo
00:46 Voltage Source Choices
00:57 Pulse Source Parameters
01:26 Plot Simulation Results
02:50 Tdelay Delay Time
03:48 Ncycles Parameter
04:21 Rise and Fall Times
05:20 Circuit Theory Book Reference
05:50 Low Tide Waves

You can download the free LTspice simulation software package from the Analog Devices website:
[ Ссылка ]

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