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limiter TANH
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Spice models for feedback defined soft limiters

3 years ago 319
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Description

Feedback defined limiters based on the TANH function.

out1 and out2 demonstrate inline and .func expression defined versions having a sharpness and slope that is scaled by the (hilim-lolim) voltage difference.

out3 and out4 demonstrate inline and .func expression defined versions having a sharpness and slope that is independent of the (hilim-lolim) voltage difference.

Documents

Feedback defined limiters

BOM

ID Name Designator Quantity
1 V=(TANH(V(IN,OUT1)*AVOL*2/(HILIM-LOLIM))*(HILIM-LOLIM)+(HILIM+LOLIM))/2 B1 1
2 1 V1 1
3 V=(TANH(V(IN,OUT3)*AVOL)*(HILIM-LOLIM)+(HILIM+LOLIM))/2 B2 1
4 V=TANHLIM2(V(IN), V(OUT4), HILIM, LOLIM, AVOL) B3 1
5 V=TANHLIM1(V(IN), V(OUT2), HILIM, LOLIM, AVOL) B4 1

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