Index: simulation/sim/22_custom_sym/22_custom_sym.html =================================================================== --- simulation/sim/22_custom_sym/22_custom_sym.html (revision 8813) +++ simulation/sim/22_custom_sym/22_custom_sym.html (nonexistent) @@ -1,42 +0,0 @@ - - -

22_custom_sym: creating a custom symbol

- -

Scope

-Create a custom diode symbol with an embedded (inline) model card. - -

The schematics

-
Click the image to get the sch-rnd sheet; also requires this project.lht in the same directory - -

Preparing for simulation

-Draw the symbol the usual way, using lines, rectangles and {p t} -for placing terminals; select the objects, convert selection to symbol; -set the usual attributes (e.g. name on the symbol and on the terminals). -

-For spice simulation, set the following attributes: -

symbol attribute spice/prefix to D: for the simulation - this is a diode; this attribute lets the sheet name the symbol U1 - still show spice a D component by prefixing the name with D_. -
symbol attribute spice/model_card to - .MODEL my_diode D (IS=2f RS=3.4 N=2.2): - this is how the model is specified inline, within the symbol, not - relying on external libs -
terminal attribute spice/pinnum; the positive (anode) terminal - should be 1, the negative (cathode) should be 2. -

-The inline model card option is useful for one-off symbols or for an easy -and quick way of tuning model parameters in test-bench schematics. - -

-Simulation settings are similar to those used in -10_bjt_amp_tr, except for -modifications: instead of using modifications, this circuit has a voltage -source symbol. - Index: simulation/sim/22_custom_sym/index.html =================================================================== --- simulation/sim/22_custom_sym/index.html (nonexistent) +++ simulation/sim/22_custom_sym/index.html (revision 8814) @@ -0,0 +1,42 @@ + + +

22_custom_sym: creating a custom symbol

+ +

Scope

+Create a custom diode symbol with an embedded (inline) model card. + +

The schematics

+
Click the image to get the sch-rnd sheet; also requires this project.lht in the same directory + +

Preparing for simulation

+Draw the symbol the usual way, using lines, rectangles and {p t} +for placing terminals; select the objects, convert selection to symbol; +set the usual attributes (e.g. name on the symbol and on the terminals). +

+For spice simulation, set the following attributes: +

symbol attribute spice/prefix to D: for the simulation + this is a diode; this attribute lets the sheet name the symbol U1 + still show spice a D component by prefixing the name with D_. +
symbol attribute spice/model_card to + .MODEL my_diode D (IS=2f RS=3.4 N=2.2): + this is how the model is specified inline, within the symbol, not + relying on external libs +
terminal attribute spice/pinnum; the positive (anode) terminal + should be 1, the negative (cathode) should be 2. +

+The inline model card option is useful for one-off symbols or for an easy +and quick way of tuning model parameters in test-bench schematics. + +

+Simulation settings are similar to those used in +10_bjt_amp_tr, except for +modifications: instead of using modifications, this circuit has a voltage +source symbol. +