Output Stage Update

Schaltung neu aufgebaut, neu simuliert, bei Erik mit Analog Discovery überprüft, OK
This commit is contained in:
Erik Tóth
2025-11-25 22:48:51 +01:00
parent 159e7d4848
commit 9705029f0a
32 changed files with 37 additions and 117 deletions

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@@ -1,98 +1,32 @@
ETOTH-Amp_LM386
*SPICE Netlist generated by Advanced Sim server on 21.11.2025 08:22:05
*SPICE Netlist generated by Advanced Sim server on 25.11.2025 22:45:08
.options MixedSimGenerated
*Schematic Netlist:
CC1 NetC1_1 NetC1_2 47nF
CC_VCM1 NetC_VCM1_1 GND 47uF
CC_VCM2 VAP NetC_VCM1_1 47uF
CCblock NetC1_2 NetCblock_2 220uF
CCblock1 NetCblock1_1 NetCblock1_2 47uF
XIC1C NetIC1_10 NetC_VCM1_1 VAP GND NetIC1_8 TL074
XIC2 NetIC2_1 GND NetCblock1_2 GND NetC1_2 VAP NetIC2_7 NetIC2_8 LM386
LL_Speaker GND NetL_Speaker_2 0.1mH
RR1 NetC1_1 GND 10R
CCblock NetCblock_1 OUT 220uF
CCblock1 NetCblock1_1 NetCblock1_2 10nF
XIC1A NetIC1_1 0 NetCblock1_2 0 NetCblock_1 VAP NetIC1_7 NetIC1_8 lm386
XIC1B NetIC1_1 0 NetCblock1_2 0 NetCblock_1 VAP NetIC1_7 NetIC1_8 lm386
LL_Speaker 0 NetL_Speaker_2 0.1mH
RR_POTA 0 NetR_POT_2 {10k * {POS}}
RR_POTB NetR_POT_2 NetR_POT_3 {10k - (10k * {POS})}
RR_rs1 NetIC1_10 VAP 470k
RR_rs2 GND NetIC1_10 470k
RR_Speaker NetL_Speaker_2 NetCblock_2 8R
RR_static1 NetCblock1_1 NetR_POT_2 9400R
RR_static2 0 NetCblock1_1 600R
QT_rsN GND NetIC1_8 NetC_VCM1_1 2N2907
QT_rsP VAP NetIC1_8 NetC_VCM1_1 2N2222
VU_q VAP GND 10V
VU_VCM_CURRENT 0 NetC_VCM1_1 0
VUin NetR_POT_3 0 DC 0 SIN(0 2 440Hz 0 0 0) AC 1 0
RR_POTB NetR_POT_2 IN {10k - (10k * {POS})}
RR_Speaker NetL_Speaker_2 OUT 8R
RR_static1 NetCblock1_1 NetR_POT_2 100k
RR_static2 0 NetCblock1_1 10k
VU_q VAP 0 10V
VUin IN 0 DC 0 SIN(5 2 220 0 0 0) AC 1 0
.PLOT TRAN {v(R_Speaker)+v(L_Speaker)} =PLOT(1) =AXIS(1) =NAME(U_speaker) =UNITS(V) =RGB(0, 255, 0)
.PLOT TRAN {i(R_Speaker)} =PLOT(2) =AXIS(1) =NAME(I_speaker) =UNITS(A)
.PLOT TRAN {p(R_Speaker)} =PLOT(3) =AXIS(1) =NAME(P_speaker) =UNITS(W)
.PLOT TRAN {i(U_VCM_CURRENT)} =PLOT(4) =AXIS(1) =NAME(I_VCM) =UNITS(A)
.PLOT TRAN {v(VAP)} =PLOT(1) =AXIS(1) =RGB(255, 0, 0)
.PLOT TRAN {v(GND)} =PLOT(1) =AXIS(1) =RGB(0, 0, 255)
.PLOT TRAN {i(Cblock1)} =PLOT(5) =AXIS(1) =NAME(I_C_in) =UNITS(A)
.PLOT TRAN {v(Cblock1)} =PLOT(5) =AXIS(2) =NAME(U_C_in) =UNITS(V)
.PLOT TRAN {i(Cblock1)} =PLOT(5) =AXIS(1) =NAME(I_C_out) =UNITS(A)
.PLOT TRAN {v(Cblock1)} =PLOT(5) =AXIS(2) =NAME(U_C_out) =UNITS(V)
.PLOT TRAN {v(IN)} =PLOT(1) =AXIS(1) =NAME(U_IN) =UNITS(V) =RGB(0, 0, 255)
.PLOT TRAN {v(OUT)} =PLOT(2) =AXIS(1) =NAME(U_OUT) =UNITS(V) =RGB(255, 153, 0)
.OPTIONS METHOD=GEAR MAXORD=2
*Selected Circuit Analyses:
.TRAN 45.45u 22.73m 0 45.45u
.TRAN 90.91u 22.73m 0 90.91u
*Global Parameters:
.PARAM POS={1}
*Models and Subcircuits:
*TL074
*Quad LoNoise JFETInput OpAmp pkg:DIP14
*+ (A:3,2,4,11,1)(B:5,6,4,11,7)(C:10,9,4,11,8)(D:12,13,4,11,14)
* Connections:
* Non-Inverting Input
* | Inverting Input
* | | Positive Power Supply
* | | | Negative Power Supply
* | | | | Output
* | | | | |
.SUBCKT TL074 1 2 3 4 5
C1 11 12 3.498E-12
C2 6 7 15E-12
DC 5 53 DX
DE 54 5 DX
DLP 90 91 DX
DLN 92 90 DX
DP 4 3 DX
BGND 99 0 V=V(3)*.5 + V(4)*.5
BB 7 99 I=I(VB)*4.715E6 - I(VC)*5E6 + I(VE)*5E6 +
+ I(VLP)*5E6 - I(VLN)*5E6
GA 6 0 11 12 282.8E-6
GCM 0 6 10 99 8.942E-9
ISS 3 10 DC 195E-6
HLIM 90 0 VLIM 1K
J1 11 2 10 JX
J2 12 1 10 JX
R2 6 9 100E3
RD1 4 11 3.536E3
RD2 4 12 3.536E3
RO1 8 5 150
RO2 7 99 150
RP 3 4 2.143E3
RSS 10 99 1.026E6
VB 9 0 DC 0
VC 3 53 DC 2.2
VE 54 4 DC 2.2
VLIM 7 8 DC 0
VLP 91 0 DC 25
VLN 0 92 DC 25
.MODEL DX D(IS=800E-18)
.MODEL JX PJF(IS=15E-12 BETA=270.1E-6 VTO=-1)
.ENDS TL074
*TopSPICE library: Models\MISCSEMI.MDB
*PART NUMBER: LM386
*MODEL NAME: LM386
*SYMBOL: X8PIN
*
*LM386 Audio power amplifier
* /*
* 1. The following model behavior shows good agreement with the
@@ -103,9 +37,9 @@ VLN 0 92 DC 25
* c) Power-supply rejection ratio, both bypassed and unbypassed;
* d) Voltage gain, both with pins 1&8 shorted and open; and
* e) Total harmonic distortion.
*
*
* 2. The model has the following discrepancies:
*
*
* f) High-gain frequency response looks somewhat more wideband
* than the actual device;
* g) Peak-to-peak output voltage swing is a bit more than the
@@ -114,13 +48,13 @@ VLN 0 92 DC 25
* h) Input bias current in this model is only about 7 nA,
* compared with the 250 nA "typical" value mentioned in
* the data sheet.
*
*
* 3. The frequency response characteristics of this LM386 model
* can be adjusted somewhat by changing C1, the rolloff capacitor in
* the voltage gain stage. It could also be made more realistic by
* tweaking transistor model parameters Cjc, Cje, Tr and Tf,
* although this can get pretty hairy.
*
*
* 4. Likewise, output drive capability could be made more
* realistic by tweaking transistor model parameters; again, this is
* hairy.
@@ -174,18 +108,4 @@ q14 out 10018 gnd ddnpn 100
+ Tf=1n Itf=1 Xtf=0 Vtf=10)
.ends LM386
*2N2907 MCE 5-27-97
*Ref: Motorola Small-Signal Device databook, Q4/94
*Si 400mW 40V 600mA 250MHz GenPurp pkg:TO-18 3,2,1
.MODEL 2N2907 PNP (IS=60.9F NF=1 BF=260 VAF=114 IKF=0.36 ISE=30.2P NE=2
+ BR=4 NR=1 VAR=20 IKR=0.54 RE=85.8M RB=0.343 RC=34.3M XTB=1.5
+ CJE=27.6P VJE=1.1 MJE=0.5 CJC=15.3P VJC=0.3 MJC=0.3 TF=636P TR=442N)
*2N2222 MCE 5-20-97
*Ref: Motorola Small-Signal Device Databook, Q4/94
*Si 400mW 30V 800mA 300MHz GenPurp pkg:TO-18 3,2,1
.MODEL 2N2222 NPN (IS=81.2F NF=1 BF=195 VAF=98.6 IKF=0.48 ISE=53.7P NE=2
+ BR=4 NR=1 VAR=20 IKR=0.72 RE=64.4M RB=0.258 RC=25.8M XTB=1.5
+ CJE=89.5P VJE=1.1 MJE=0.5 CJC=28.9P VJC=0.3 MJC=0.3 TF=530P TR=368N)
.END

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@@ -7,4 +7,4 @@ From : Project [ETOTH-Amp_LM386.PrjPcb]
Files Generated : 1
Documents Printed : 0
Finished Output Generation At 08:00:57 On 21.11.2025
Finished Output Generation At 22:41:52 On 25.11.2025

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