User`s guide

5
-
8 Creatin
g
Symbols for Models
Phase 4, Global librar
y
confi
g
uration
When you
click Finish, the wizard saves the symbols to the symbol library
you named in the setup phase and does the following:
• Configures the symbol library for global use.
• If the model library is not yet configured, configures it for
global use.
Creatin
g
AKO S
y
mbols
If you want to create a compact symbol library for a set of
similar models, then create AKO symbols. AKO symbols are a
convenient way to define new symbols that are only slightly
different from another symbol.
What Are Base vs. AKO
S
y
mbols?
Base s
y
mbols
A base symbol defines the graphical
properties of the symbol and the minimum set of attributes
needed to make the symbol functional in any schematic.
AKO (A Kind Of) s
y
mbols
An AKO symbol inherits
all of the graphics and attributes of the base symbol that it
references, and it can alter or add to the base symbol’s attributes.
Base and AKO S
y
mbols in
S
y
mbol Libraries
A symbol library contains definitions for both base symbols and
AKO symbols. In any symbol library provided by MicroSim,
the base symbols appear at the end of the file.
Example: The symbol library,
bipolar.slb, contains two base
symbols named qnpn and qpnp.
Every other symbol in this library
is derived from one of these base
symbols. For example,
DH3467CD is an AKO of the
qpnp base symbol, with chan
g
es
to the PART and MODEL
attributes to reflect individual part
behaviors. This means that
DH3467CD inherits all of the
g
raphics and attribute values of
qpnp, except that the specific
PART and MODEL attribute
values for DH3467CD
supersede the correspondin
g
attribute values for qpnp.