Re: speed of tran analysis in SPICE3

On 20 Sep 2005 18:21:10 -0700, "vivian" <wangllu@xxxxxxxxx> wrote:

>Hello, Jim
>
>Is there anything I can do to increase the speed?
>My circuit is a ring VCO.
>
>Thank you.

Which flavor of Spice?

Oscillators always need a small max timestep

Use a .IC statement, or a starting current pulse

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
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| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

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