xschem/xschem_library/examples/classD_amp.sch

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\\"Expected;in 5 - 9 *\\""
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node="\\"xm1 power;vpp out - i(vu) * 500u ravg()\\"
\\"xm2 power;out vnn - i(vd) * 500u ravg()\\"
\\"Load power;out_lpf 2 ** 8 /\\"
\\"P(load);out_lpf 2 ** 8 / 500e-6 ravg()\\"
\\"P(supply); i(vvnn) 500u ravg() i(vvpp) 500u ravg() - 40 *\\""
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alpha=0.6
image=/home/schippes/x/xyce.png
image_data=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
ps_invert=true}
T {PWM Modulator} 480 -610 0 0 0.6 0.6 {}
T {Driver} 230 -930 0 0 0.6 0.6 {}
T {LP
Filter} 700 -1040 0 0 0.6 0.6 {}
T {Load} 860 -1010 0 0 0.6 0.6 {}
T {10} 25 -850 0 1 0.2 0.2 {}
T {10} 25 -1170 0 1 0.2 0.2 {}
T {DRIVED} 135 -805 0 0 0.2 0.2 {}
T {DRIVEU} 130 -1125 0 0 0.2 0.2 {}
T {Class D amplifier } 410 -1250 0 0 1 1 {}
T {-10} 25 -780 0 1 0.2 0.2 {}
T {-10} 25 -1100 0 1 0.2 0.2 {}
N 460 -1020 460 -1000 {lab=#net1}
N 460 -920 460 -900 {lab=OUT}
N 460 -840 460 -800 {lab=#net2}
N 460 -1060 460 -1020 {lab=#net1}
N 460 -700 460 -640 {lab=VNN}
N 460 -940 460 -920 {lab=OUT}
N 460 -1160 460 -1120 { lab=VPP}
N 570 -920 680 -920 {
lab=OUT}
N 220 -1020 460 -1020 {
lab=#net1}
N 340 -1090 420 -1090 {
lab=GU_I}
N 220 -700 460 -700 {
lab=VNN}
N 340 -770 420 -770 {
lab=GD_I}
N 610 -370 750 -370 {
lab=DRIVED}
N 70 -510 70 -490 {
lab=VSS}
N 70 -590 70 -570 {
lab=VPP}
N 190 -510 190 -490 {
lab=VSS}
N 190 -590 190 -570 {
lab=VNN}
N 70 -370 70 -350 {
lab=0}
N 70 -450 70 -430 {
lab=VSS}
N 220 -1090 280 -1090 {
lab=#net3}
N 220 -770 280 -770 {
lab=#net4}
N 440 -150 440 -130 {
lab=VSS}
N 280 -150 280 -130 {
lab=VSS}
N 780 -920 780 -890 {
lab=OUT_LPF}
N 740 -920 780 -920 {
lab=OUT_LPF}
N 460 -740 460 -700 {lab=VNN}
N 460 -920 570 -920 {
lab=OUT}
N 780 -830 780 -810 {
lab=VSS}
N 900 -830 900 -810 {
lab=VSS}
N 900 -920 900 -890 {
lab=OUT_LPF}
N 900 -920 940 -920 {
lab=OUT_LPF}
N 780 -920 900 -920 {
lab=OUT_LPF}
N 280 -400 490 -400 {
lab=IN}
N 280 -400 280 -210 {
lab=IN}
N 610 -520 750 -520 {
lab=DRIVEU}
N 440 -490 490 -490 {
lab=REFU}
N 440 -340 490 -340 {
lab=REFD}
N 280 -550 490 -550 {
lab=IN}
N 280 -550 280 -400 {
lab=IN}
N 440 -230 440 -210 {
lab=REF}
N 220 -1090 220 -1080 {
lab=#net3}
N 220 -770 220 -760 {
lab=#net4}
C {nmos3.sym} 440 -770 0 0 {name=xm2 model=irf540 m=1
program=evince
url="https://www.vishay.com/docs/91021/irf540.pdf"
net_name=true

device_model=".SUBCKT irf540 1 2 3
M1 9 7 8 8 MM L=100u W=100u
* Default values used in MM:
* The voltage-dependent capacitances are
* not included. Other default values are:
* RS=0 RD=0 LD=0 CBD=0 CBS=0 CGBO=0
.MODEL MM NMOS LEVEL=1 IS=1e-32
+VTO=3.56362 LAMBDA=0.00291031 KP=25.0081
+CGSO=1.60584e-05 CGDO=4.25919e-07
RS 8 3 0.0317085
D1 3 1 MD
.MODEL MD D IS=1.02194e-10 RS=0.00968022 N=1.21527 BV=100
+IBV=0.00025 EG=1.2 XTI=3.03885 TT=1e-07
+CJO=1.81859e-09 VJ=1.1279 M=0.449161 FC=0.5
RDS 3 1 4e+06
RD 9 1 0.0135649
RG 2 7 5.11362
D2 4 5 MD1
* Default values used in MD1:
* RS=0 EG=1.11 XTI=3.0 TT=0
* BV=infinite IBV=1mA
.MODEL MD1 D IS=1e-32 N=50
+CJO=2.49697e-09 VJ=0.5 M=0.9 FC=1e-08
D3 0 5 MD2
* Default values used in MD2:
* EG=1.11 XTI=3.0 TT=0 CJO=0
* BV=infinite IBV=1mA
.MODEL MD2 D IS=1e-10 N=0.4 RS=3e-06
RL 5 10 1
FI2 7 9 VFI2 -1
VFI2 4 0 0
EV16 10 0 9 7 1
CAP 11 10 2.49697e-09
FI1 7 9 VFI1 -1
VFI1 11 6 0
RCAP 6 10 1
D4 0 6 MD3
* Default values used in MD3:
* EG=1.11 XTI=3.0 TT=0 CJO=0
* RS=0 BV=infinite IBV=1mA
.MODEL MD3 D IS=1e-10 N=0.4
.ENDS
"}
C {nmos3.sym} 440 -1090 0 0 {name=xm1 model=irf540 m=1
program=xdg-open
url="https://www.vishay.com/docs/91021/irf540.pdf"
net_name=true

device_model=".SUBCKT irf540 1 2 3
M1 9 7 8 8 MM L=100u W=100u
* Default values used in MM:
* The voltage-dependent capacitances are
* not included. Other default values are:
* RS=0 RD=0 LD=0 CBD=0 CBS=0 CGBO=0
.MODEL MM NMOS LEVEL=1 IS=1e-32
+VTO=3.56362 LAMBDA=0.00291031 KP=25.0081
+CGSO=1.60584e-05 CGDO=4.25919e-07
RS 8 3 0.0317085
D1 3 1 MD
.MODEL MD D IS=1.02194e-10 RS=0.00968022 N=1.21527 BV=100
+IBV=0.00025 EG=1.2 XTI=3.03885 TT=1e-07
+CJO=1.81859e-09 VJ=1.1279 M=0.449161 FC=0.5
RDS 3 1 4e+06
RD 9 1 0.0135649
RG 2 7 5.11362
D2 4 5 MD1
* Default values used in MD1:
* RS=0 EG=1.11 XTI=3.0 TT=0
* BV=infinite IBV=1mA
.MODEL MD1 D IS=1e-32 N=50
+CJO=2.49697e-09 VJ=0.5 M=0.9 FC=1e-08
D3 0 5 MD2
* Default values used in MD2:
* EG=1.11 XTI=3.0 TT=0 CJO=0
* BV=infinite IBV=1mA
.MODEL MD2 D IS=1e-10 N=0.4 RS=3e-06
RL 5 10 1
FI2 7 9 VFI2 -1
VFI2 4 0 0
EV16 10 0 9 7 1
CAP 11 10 2.49697e-09
FI1 7 9 VFI1 -1
VFI1 11 6 0
RCAP 6 10 1
D4 0 6 MD3
* Default values used in MD3:
* EG=1.11 XTI=3.0 TT=0 CJO=0
* RS=0 BV=infinite IBV=1mA
.MODEL MD3 D IS=1e-10 N=0.4
.ENDS
"}
C {lab_pin.sym} 460 -640 0 0 {name=p18 lab=VNN}
C {ammeter.sym} 460 -870 0 0 {name=vd  net_name=true current=0.2069}
C {ammeter.sym} 460 -970 0 0 {name=vu  net_name=true current=0.2005}
C {lab_pin.sym} 460 -1160 0 0 {name=p27 lab=VPP}
C {lab_pin.sym} 460 -910 0 0 {name=p3 lab=OUT}
C {comp_ngspice.sym} 550 -370 2 1 {name=x1 
OFFSET=5
AMPLITUDE=10}
C {lab_pin.sym} 750 -370 0 1 {name=p6 lab=DRIVED}
C {title.sym} 160 -40 0 0 {name=l1 author="Stefan Schippers" net_name=true}
C {vsource.sym} 70 -540 0 0 {name=VVPP value=40}
C {lab_pin.sym} 70 -490 0 0 {name=p9 lab=VSS}
C {lab_pin.sym} 70 -590 0 0 {name=p10 lab=VPP}
C {vsource.sym} 190 -540 0 0 {name=VVNN value=-40}
C {lab_pin.sym} 190 -490 0 0 {name=p11 lab=VSS}
C {lab_pin.sym} 190 -590 0 0 {name=p12 lab=VNN}
C {vsource.sym} 70 -400 0 0 {name=VVSS value=0}
C {lab_pin.sym} 70 -350 0 0 {name=p13 lab=0}
C {lab_pin.sym} 70 -450 0 0 {name=p14 lab=VSS}
C {launcher.sym} 1000 -130 0 0 {name=h5 
descr="Reload waveforms" 
tclcommand="
xschem raw_read $netlist_dir/[file tail [file rootname [xschem get current_name]]].raw
"
}
C {res.sym} 310 -1090 1 1 {name=R2 m=1 value=2}
C {res.sym} 310 -770 1 1 {name=R3 m=1 value=2}
C {parax_cap.sym} 370 -1080 0 0 {name=C3 gnd=0 value=20f m=1}
C {parax_cap.sym} 370 -760 0 0 {name=C1 gnd=0 value=20f m=1}
C {parax_cap.sym} 610 -910 0 0 {name=C2 gnd=0 value=10n m=1}
C {lab_wire.sym} 410 -1090 0 0 {name=l19 lab=GU_I}
C {lab_wire.sym} 410 -770 0 0 {name=l2 lab=GD_I}
C {vsource.sym} 440 -180 0 0 {name=V6 value="pulse 0 \{VCC\} 0 5u 5u 5p 10u"}
C {lab_pin.sym} 440 -130 0 0 {name=p19 lab=VSS}
C {lab_pin.sym} 440 -230 0 0 {name=p20 lab=REF}
C {vsource.sym} 280 -180 0 0 {name=V7 value="SIN ( 5 4 2000 0 0 0 )"
}
C {lab_pin.sym} 280 -130 0 0 {name=p21 lab=VSS}
C {lab_pin.sym} 280 -230 0 0 {name=p22 lab=IN}
C {parax_cap.sym} 660 -360 0 0 {name=C4 gnd=0 value=200f m=1}
C {ind.sym} 710 -920 1 0 {name=L3
m=1
value=0.03m
footprint=1206
device=inductor}
C {capa.sym} 780 -860 0 0 {name=C5
m=1
value=20u
footprint=1206
device="ceramic capacitor"}
C {lab_pin.sym} 940 -920 0 1 {name=p4 lab=OUT_LPF}
C {lab_pin.sym} 780 -810 0 0 {name=p7 lab=VSS}
C {res.sym} 900 -860 0 1 {name=R4 m=1 value=8}
C {lab_pin.sym} 900 -810 0 0 {name=p8 lab=VSS}
C {launcher.sym} 1000 -90 0 0 {name=h1 
descr="Netlist + Simulate
Ctrl-Left-Click" 
tclcommand="xschem netlist; xschem simulate"
}
C {comp_ngspice.sym} 550 -520 0 0 {name=x2 
OFFSET=5
AMPLITUDE=10}
C {lab_pin.sym} 750 -520 0 1 {name=p1 lab=DRIVEU}
C {parax_cap.sym} 660 -510 0 0 {name=C6 gnd=0 value=200f m=1}
C {vsource.sym} 440 -460 0 0 {name=Voffs value=0.1}
C {lab_pin.sym} 440 -490 0 0 {name=p2 lab=REFU}
C {vsource.sym} 440 -310 2 1 {name=Voffs1 value=0.1}
C {lab_pin.sym} 440 -340 0 0 {name=p5 lab=REFD}
C {lab_pin.sym} 440 -280 0 0 {name=p17 lab=REF}
C {lab_pin.sym} 440 -430 0 0 {name=p23 lab=REF}
C {vcvs.sym} 220 -1050 0 0 {name=E1 value=1}
C {vcvs.sym} 220 -730 0 0 {name=E2 value=1}
C {lab_pin.sym} 180 -710 0 0 {name=p15 lab=VSS}
C {lab_pin.sym} 180 -1030 0 0 {name=p16 lab=VSS}
C {lab_pin.sym} 180 -1070 0 0 {name=p24 lab=DRIVEU}
C {lab_pin.sym} 180 -750 0 0 {name=p25 lab=DRIVED}
C {simulator_commands_shown.sym} 0 -250 0 0 {name=COMMANDS
simulator=ngspice
only_toplevel=false 
value="
.param VCC=10 VGATE=10
.control
save all
tran 100n 2000u uic
write classD_amp.raw
.endc
"}
C {simulator_commands_shown.sym} 680 -250 0 0 {name=COMMANDS1
simulator=xyce
only_toplevel=false 
value="
.param VCC=10 VGATE=10
.tran 100n 2000u uic
.print tran format=raw
+ file=classD_amp.raw v(*) i(*)
"}