diff options
| author | Damien Zammit <damien@zamaudio.com> | 2020-11-24 17:58:30 +1100 |
|---|---|---|
| committer | Damien Zammit <damien@zamaudio.com> | 2020-12-01 14:08:00 +1100 |
| commit | e25f001825f04d96419a0306be80aa4c21463e31 (patch) | |
| tree | b004ce4b92a1d6811c09d288031dc92116d2d948 | |
| parent | 30ac8e0de1ad650edfa068cde562f6b613dd2fb9 (diff) | |
ZamTube: Introduce diode to attain grid bias
| -rw-r--r-- | plugins/ZamTube/wdfcircuits.h | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/plugins/ZamTube/wdfcircuits.h b/plugins/ZamTube/wdfcircuits.h index 5bf2e93..99c5eb7 100644 --- a/plugins/ZamTube/wdfcircuits.h +++ b/plugins/ZamTube/wdfcircuits.h @@ -118,12 +118,14 @@ public: //RkGetB //P1_2SetA //Call tube model - Vg = -S1_3b3; - Vk = -P1_3b3; - Real b = -t.compute(S2_3b3, S2_3Gamma1, Vg, Vk); + Real Vd = Vg-Vk; + Real Rd = (Vd > 0.) ? 2e+3 : 100e+9; + Vg = (S1_3b3); + Vk = -(P1_3b3 - Vg * S1_3Gamma1 / Rd); + Real b = t.compute(S2_3b3, S2_3Gamma1, Vg, Vk); //Set As //S2_3SetA - Real S2_3b1 = P2_3b3 - S2_3Gamma1*(P2_3b3 + P1_3b3 + b); + Real S2_3b1 = P2_3b3 - S2_3Gamma1*(P2_3b3 - Vk + b); //P2_3SetA Real P2_3b1 = S2_3b1 + E500E - S3_3b3 - P2_3Gamma1*(E500E - S3_3b3); //S3_3SetA @@ -132,7 +134,7 @@ public: Real S3_3b2 = Cob + P2_3b1 - S3_3Gamma1*(Cob + P2_3b1); //RoSetA Real Roa = S3_3b2; - Real S2_3b2 = P2_3b3 + b - S2_3Gamma1*(P2_3b3 + P1_3b3 + b); + Real S2_3b2 = P2_3b3 + b - S2_3Gamma1*(P2_3b3 - Vk + b); //P1_3SetA Real P1_3b1 = S2_3b2 - Ckb - P1_3Gamma1*(-Ckb); Cka = P1_3b1; @@ -143,7 +145,7 @@ public: //S0_3SetA //Cia = S0_3b1; //RiSetA - //printf("Vk=%f Vg=%f Vpk=%f in=%f out=%f\n", Vk,Vg,S2_3b3, ViE,Roa); + //printf("Vk=%f Vg=%f Vd=%f in=%f out=%f\n", Vk,Vg,Vd, ViE,Roa); return Roa; } |