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EDWin
Powerful Features
EDWin is a CAD/CAE software package providing an electronics
engineer with computerised tools to produce an electronic
circuit in the form of a schematic diagram and/or PCB layout.
Using EDWin provides documentation and artworks for manufacturing
printed circuit boards. EDWin features seamless integration
between all its modules - namely Schematic Capture, Layout
Design, Postprocessing and Simulation, which is possible thanks
to a unique, totally integrated design database structure
facilitating automatic front and back anotation.
The power features of EDWin are given below.
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Schematic
Capture
PostProcessing
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Mixed
Mode Simulation
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Layout
Design
Libraries
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EDSpice
- Advanced Simulation Capabilities
EDSpice is a SPICE-like simulator giving
improved performance over SPICE2 based simulators. It is solely
based on Berkeley SPICE3 with a number of extensions and improvements.
Featured are ten types of analyses with improved convergence
algorithms (including Gmin and Source Stepping) and an extended
set of built in models such as Resistors, Capacitors, Inductors,
Coupled Inductors, Diodes, BJTs, JFETs, MOSFETs [level 1, 2,
3, 4 (BSIM1), 5 (BSIM2) and 6], MESFETs, Subcircuits, Ideal
Transmission Lines, two types of Lossy Transmission Lines, Independent/Dependent
Voltage/Current sources (Including SPICE 2 polynomials and B
element), Voltage/Current Controlled switches, Semiconductor
Resistor / Capacitor...
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Oscillograph - New Feature
The
new feature of EDWin XP/2000 includes Oscillograph. This
applies to Mixedmode simulator. It provides a window where
the outputs of the variables like voltage, current and
logic states may be viewed graphically when simulation
is carried out. This function works like CRO where the
variable (voltage, current, Logic states) may be selected
and output obtained graphically with respect to time.
Applicable for both Analog and Digital circuits for Time
Domain Analysis.
Set the required testpoints for the circuit and click
Run Transient analysis (Oscillograph)
from Simulation menu in
Mixedmode Simulator. A window OSCILLOGRAPH-Transient
Analysis pops up where the required variable
(voltage, current, Logic states) is selected. Set the
scale factor for the X and Y-axis. The scale factor is
determined by multiplying the value X/div multiplied by
the times selected in the multiply combo. Similarly, the
scale along the Y-axis is also calculated. The Step Time
is given suitably.
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The
step time determines the iteration time. Initialize LC
allows manipulating the initial values of the state variables
(capacitor voltages and inductance currents). Click the
start button in the window and observe the graph. If necessary
the scale values may be changed to find the amplitude.
The display of the output can be paused or stopped . During
the simulation, the variables can be changed and output
obtained changes accordingly.
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EDTherm - Thermo Analyser
The
Thermal Analyser is a plug-in tool for the EDWin ECAD package
that enables you to perform comprehensive thermal analysis of
your PCB designs. The Thermal Analyser requires a thermal library
(provided as part of the package) containing the thermal parameters
of Devices. Users can easily add to the library by editing the
appropriate ASCII file and compiling it using the library compiler
to create the corresponding thermal library.
The preferences menu in the Analyser allows you to specify both
the thermal parameters of the board and the simulation parameters.
Board Thermal parameters such as Board Emmisivities, Insulator
Thermal Conductivities, Board Orientations etc., Environmental
parameters such as Working Maximum, Minimum and Ambient Temperatures
as well as Cooling Parameters such as Direction and Velocity
of Air Flow can also be specified by the user.
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Simulation parameters such as Isotherm Density Colors used for
the color maps etc. can be specified.
The View menu allows you to tailor the visual presentation of
the simulation results as per your requirements. You can choose
to view isotherms, colored maps of any one of the 32 layers
that you create using EDWin. You can also choose to view isotherms
with any gradation, a colored map of the whole board or components
with any temperature range. In other words you get the maximum
possible freedom to view the results in the most meaningful
manner to you, the designer.
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EDWin EMA - Electro Magnetic Analyser
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Advanced System Options
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