FlowCAD Online University

FlowCAD Online University

FlowCAD supports students from universities, schools and other educational institutes. On FlowCAD Online University page you will find free of charge information, recommended literature or links to YouTube tutorials including test circuits to be downloaded. Students can apply for free licenses for educational purpose only. There is also a program for professors and teachers.


Free Licenses for Students

The OrCAD student program provides validated students with a professional OrCAD PCB Design and a PSpice Circuit Simulator license for free.
» Student Program

PSpice Tutorials

PSpice Learning
PSpice Tutorials

In the installation of PSpice some circuits are already included as examples. The examples can be found in the menu under Help > Learning PSpice. Each of these examples explain in English the theory of a circuit and gives a step-by-step guide to simulation. The circuit diagram and the simulation models are all already installed and can be used immediately.


Quickstart

Language English Quickstart PSpice
Language English Quickstart OrCAD Capture (Schematic Entry)
More Quickstarts

PSpice Reference Circuits and Examples

Below you see a selection of basic electronic circuits. There is a link for a video tutorial, which describes the behaviour of this circuit. The circuit is ready for simulation in PSpice and can be downloaded for free as a .zip file. You can easily reproduce the circuit simulation results and exchange components and settings to better understand the circuit for your own education.

Capacitor

Voltage Smoothing and Filtering With a Capacitor

Voltage Smoothing and Filtering With a Capacitor

This tutorial is about voltage-smoothing and filtering with a capacitor.
reference design

Capacitor Phase Shift

Capacitor Phase Shift

This short video is about the phase shift occurring between voltage and current.
reference design

Boost Converter

Boost Converter

This video is about the structure and operation of a boost converter.
reference design

Diode

Switching Inductive Loads with Flyback Diode

Switching Inductive Loads with Flyback Diode

This video is about switching of inductive loads with a transistor and a flyback diode.
reference design

Series Voltage Regulator With Zener Diode

Series Voltage Regulator With Zener Diode

This video is about a series voltage regulator with a Zener diode.
reference design

Diode Characteristic

Diode Characteristic

This video is about capturing a current–voltage characteristic for a diode.
reference design

Transistor

Current Mirror

Current Mirror

This tutorial will demonstrate the basic idea of a current mirror.
reference design

Bipolar Transistor as a Switch

Bipolar Transistor as a Switch

A bipolar transistor functioning as a switch is another basic circuit.
reference design

Astable Multivibrator with Transistors

Astable Multivibrator with Transistors

This video is about a circuit that is very commonly used in schools and universities.
reference design

Open Collector Output

Open Collector Output

Many integrated circuits for digital applications have an open-collector.
reference design

Transistor Emitter

Transistor Emitter

This video is about the use of a transistor in an emitter circuit.
reference design

Operational Amplifiers (Op Amps)

Non-inverting Summing Amplifier

Non-inverting Summing Amplifier

In this video we want to talk about how to use an operational amplifier.
reference design

Schmitt Trigger

Schmitt Trigger

Topic of this video is the behavior of a Schmitt Trigger and its implementation with an amplifier.
reference design

Inverting Schmitt Trigger

Inverting Schmitt Trigger

This video is about an important basic circuit of electronics - Inverting Schmitt Trigger.
reference design

Digital-to-analog Converter

Digital-to-analog Converter

This video is about the basic structure of a digital-to-analog converter.
reference design

Oscillators

RC Oscillator

RC Oscillator

The video shows a tutorial on how to build a phase shifted oscillator.
reference design

Parallel RLC Circuit

Parallel RLC Circuit

This tutorial is about a parallel RLC circuit attached to a DC-voltage supply.
reference design

Filter

Low-Pass Filter

Low-Pass Filter

This tutorial describes the structure and behavior of a low-pass filter.
reference design

3 Phase Power

Neutral Voltage Shift in 3 Phase

Neutral Voltage Shift in 3 Phase

This video is about the neutral voltage shift in unbalanced three-phase system.
reference design

Balanced Load in a star connection

Balanced Load in a Star Connection

Watch this video and learn more about the behavior of balanced loads.
reference design

Six Pulse Bridge B6U

Six Pulse Bridge B6U

This video is about the six-pulse bridge circuit, also called B6U.
reference design

Other

Phase Control with a Triac

Phase Control with a Triac

This video is about the concept of phase control, as it is seen in simple low power applications
reference design

Thyristor-as-a-switch

Thyristor-as-a-switch

This video describes the application of a thyristor as a switch.
reference design

AC Sweep

AC Sweep

In this PSpice tutorial we will have a closer look at the AC sweep.
reference design

Voltage Regulator LM317

Voltage Regulator LM317

In this tutorial we want to describe the stabilization of voltage with the LM317.
reference design

NE555 Monostable

NE555 Monostable

This video is about a 555 timer as a monostable multivibrator circuit.
reference design

Evaluating Measurements - RMS Value

Evaluating Measurements - RMS Value

This tutorial is about the Root-Mean-Square voltage of an AC waveform.
reference design

Voltage Regulator 7805

Voltage Regulator 7805

In this tutorial we’ll describe how to use the 7805 voltage regulator.
reference design