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T O P I C    R E V I E W
Jacques Posted - 24 Apr 2007 : 03:40:14
I need a sawtooth generator for a simulation.
How do I make one ? Using a arbitrary voltage source ? Been trying that but without success.
Any help would be welcome.

"If it ain't broken, don't fix it" ... I should remember this !
2   L A T E S T    R E P L I E S    (Newest First)
Jacques Posted - 24 Apr 2007 : 07:25:37
Sometimes I feel so dumb !
Thanks.

"If it ain't broken, don't fix it" ... I should remember this !
Peter Johnson Posted - 24 Apr 2007 : 05:08:00
Essentially you create a square wave generator, but customise the rise and fall times so that the end result is a sawtooth.

Use the pulse generator, specify your rise and fall times (SpiceRise, SpiceFall), set a pulse width (SpiceWidth) of zero, so there's no flat top, and set the period (SpicePeriod) to be the sum of the rise and fall times, so there's no flat bottom.

I won't go into more details, as they're in the manual. If you can't find your paper copy, run up the command shell, then go to [Help], [Online Manuals], [User's Guide]. You'll get a pdf version displayed.