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ngspice
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noise value is 0 for time == zero. 

Only when time changes from time == 0 to time > 0,
the 1/f noise data are generated once per voltage instance
with 1/f noise requested.
This commit is contained in:
Holger Vogt 2018-08-22 22:38:34 +02:00
parent d3b7619754
commit c88578e2c5
1 changed files with 11 additions and 5 deletions
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16
src/spicelib/devices/vsrc/vsrcload.c
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@ -349,12 +349,18 @@ VNoi3 3 0 DC 0 TRNOISE(0 0 0 0 15m 22u 50u) : generate RTS noise
double TS = state -> TS;
double RTSAM = state->RTSAM;
/* reset top (hack for repeated tran commands) */
if (time == 0)
state->top = 0;
/* reset top (hack for repeated tran commands)
when there is the jump from time=0 to time>0 */
if (time == 0.0)
state->timezero = TRUE;
else
if (state->timezero) {
state->top = 0;
state->timezero = FALSE;
}
/* no noise */
if(TS == 0.0) {
/* no noise or time == 0 */
if(TS == 0.0 || time == 0.0) {
value = 0.0;
} else {