Circuit Design - Simulation

LTpowerCAD II

The LTpowerCAD II design tool is a complete power supply design tool program that can significantly ease the tasks of power supply design with Linear Technology µModule regulators and many other products, mostly monolithic buck step-down regulators. Unlike conventional simulation tools, this LTpowerCAD tool guides users throughout the whole supply design process: it searches suitable LTC parts according to user’s supply specifications; then it guides the user to select and optimize circuit component values with suggestions and warnings. The tool shows real-time results of feedback loop bode plot, as well as the power stage performance. The design can be exported to LTspice simulation circuit for users to further verify their designs. The tool also provides PCB layout examples. Currently, this design tool works on Microsoft Windows based PC with Excel 2000, 2003, 2007, 2010 and 2013. With internet connection, the user can make real time update of the program and its component library. Contact LTpowerCAD@linear.com for questions or support.

Yenka

Design and test analogue and digital electronic circuits, convert them to PCB layouts, and program PIC or PICAXE microcontrollers.

PSPICE 9.1 Student Version

Design and simulate analog and digital circuits with Orcad Pspice Student version.

> For official PSpice Free 30-day Trial version get a request on www.orcad.com

What's included with the PSPICE 9.1 Student Version:

Limited versions of the following products are included in the Student Version of PSpice:

  • PSpice A/D 9.1, Web Update 1, including PSpice Schematics 9.1
  • Your choice of schematic editors (specify during installation)
    • PSpice Schematics 9.1
    • Capture 9.1, Web Update 2

Digikey Database and libraries

Download Digikey Database 2.09 MB
Download Digikey Libraries 1.05 MB

Help Files

PSPICE.PDF - Pspice User's Guide
CAPUG.PDF - Capture User's Guide
ANALOG.PDF - Analog Parts
DIGITAL.PDF - Digital Parts
MIXED.PDF - Mixed- Signal Parts
PSPICEAD.PDF - A/D User’s Guide
PSPCREF.PDF - A/D Reference Manual
OPTUG.PDF - Optimizer User's Guide
PCB2LAY.PDF - Converting MicroSim PCBoards Designs to OrCAD Layout Designs
SCH2CAP.PDF - Converting MicroSim Schematics Designs to OrCAD Capture Designs
NETLICGD.PDF - Network Licensing Guide

Tutorials

SPICE-Based Analog Simulation

TINA is an easy-to-use, powerful circuit simulation tool based on a SPICE engine. TINA-TI is a fully functional version of TINA, loaded with a library of TI macromodels plus passive and active models.

LTspice IV

LTspice IV is a high performance SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators. Our enhancements to SPICE have made simulating switching regulators extremely fast compared to normal SPICE simulators, allowing the user to view waveforms for most switching regulators in just a few minutes. Included in this download are LTspice IV, Macro Models for 800f Linear Technology's switching regulators, over 200 op amp models, as well as resistors, transistors and MOSFET models.

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