[SI-LIST] Re: How to build a variable resistor in HSPICE
- From: Ray Anderson <raymond.anderson@xxxxxxx>
- To: si-list <si-list@xxxxxxxxxxxxx>
- Date: Tue, 14 Oct 2003 16:35:27 -0700
How about a resistor with a parameterized value.
Define v_sweep to vary from 1 to 1000 volts. When it equals
0 volts then r_variable will be 0 ohms. When v_sweep
equals 1000 volts r_variable will equal 1000 ohms.
Make v_sweep a sawtooth (or a sawtooth, or a PWL waveform,
or whatever you need) and adjust the period so that it ramps from
min to max in 1 ns. .
r_variable terminal_1 terminal_2 r = v_sweep
The details are left to the interested.......... (customize as desired)
Ray Anderson
Staff SI Engineer
Sun Microsystems
David Kaiser wrote:
>Can anyone show me how to build a resistor in HSPICE that varys in value=
> from 1000 Ohms to 1 ohm in about 1ns and visa-versa?
>I suppose I could use a FET, but I don't have enough experience with=
> transistors in HSPICE to do this myself.
>Thanks in advance.
>
>David Kaiser
>4 McDATA Pkwy.
>Broomfield, CO 80021
>(720) 558-4431
>david.kaiser@xxxxxxxxxx
>
>
>.
>
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