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Std edition Spice models for feedback defined soft limiters
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License: Public Domain
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.
Design Drawing
schematic diagram
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PCB
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| 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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