共基BJT晶体管放大器
该分析以0.1伏的增量将输入电压（Vin）从0伏扫到5伏，然后输出晶体管v（2,3）集电极和发射极引线之间的电压。晶体管（Q1）是一个正向贝塔系数为50的NPN。
络列表：
Common-base BJT amplifier
vsupply 1 0 dc 24
vin 0 4 dc
rc 1 2 800
re 3 4 100
q1 2 0 3 mod1
.model mod1 npn bf=50
.dc vin 0 5 0.1
.print dc v(2,3)
.plot dc v(2,3)
.end
输出：
vin v(2,3)
0.000E+00 2.400E+01
1.000E-01 2.410E+01
2.000E-01 2.420E+01
3.000E-01 2.430E+01
4.000E-01 2.440E+01
5.000E-01 2.450E+01
6.000E-01 2.460E+01
7.000E-01 2.466E+01
8.000E-01 2.439E+01
9.000E-01 2.383E+01
1.000E+00 2.317E+01
1.100E+00 2.246E+01
1.200E+00 2.174E+01
1.300E+00 2.101E+01
1.400E+00 2.026E+01
1.500E+00 1.951E+01
1.600E+00 1.876E+01
1.700E+00 1.800E+01
1.800E+00 1.724E+01
1.900E+00 1.648E+01
2.000E+00 1.572E+01
2.100E+00 1.495E+01
2.200E+00 1.418E+01
2.300E+00 1.342E+01
2.400E+00 1.265E+01
2.500E+00 1.188E+01
2.600E+00 1.110E+01
2.700E+00 1.033E+01
2.800E+00 9.560E+00
2.900E+00 8.787E+00
3.000E+00 8.014E+00
3.100E+00 7.240E+00
3.200E+00 6.465E+00
3.300E+00 5.691E+00
3.400E+00 4.915E+00
3.500E+00 4.140E+00
3.600E+00 3.364E+00
3.700E+00 2.588E+00
3.800E+00 1.811E+00
3.900E+00 1.034E+00
4.000E+00 2.587E-01
4.100E+00 9.744E-02
4.200E+00 7.815E-02
4.300E+00 6.806E-02
4.400E+00 6.141E-02
4.500E+00 5.657E-02
4.600E+00 5.281E-02
4.700E+00 4.981E-02
4.800E+00 4.734E-02
4.900E+00 4.525E-02
5.000E+00 4.346E-02
vin v(2,3) 0.000E+00 1.000E+01 2.000E+01 3.000E+01
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
0.000E+00 2.400E+01 . . . * .
1.000E-01 2.410E+01 . . . * .
2.000E-01 2.420E+01 . . . * .
3.000E-01 2.430E+01 . . . * .
4.000E-01 2.440E+01 . . . * .
5.000E-01 2.450E+01 . . . * .
6.000E-01 2.460E+01 . . . * .
7.000E-01 2.466E+01 . . . * .
8.000E-01 2.439E+01 . . . * .
9.000E-01 2.383E+01 . . . * .
1.000E+00 2.317E+01 . . . * .
1.100E+00 2.246E+01 . . . * .
1.200E+00 2.174E+01 . . . * .
1.300E+00 2.101E+01 . . .* .
1.400E+00 2.026E+01 . . * .
1.500E+00 1.951E+01 . . *. .
1.600E+00 1.876E+01 . . * . .
1.700E+00 1.800E+01 . . * . .
1.800E+00 1.724E+01 . . * . .
1.900E+00 1.648E+01 . . * . .
2.000E+00 1.572E+01 . . * . .
2.100E+00 1.495E+01 . . * . .
2.200E+00 1.418E+01 . . * . .
2.300E+00 1.342E+01 . . * . .
2.400E+00 1.265E+01 . . * . .
2.500E+00 1.188E+01 . . * . .
2.600E+00 1.110E+01 . . * . .
2.700E+00 1.033E+01 . * . .
2.800E+00 9.560E+00 . *. . .
2.900E+00 8.787E+00 . * . . .
3.000E+00 8.014E+00 . * . . .
3.100E+00 7.240E+00 . * . . .
3.200E+00 6.465E+00 . * . . .
3.300E+00 5.691E+00 . * . . .
3.400E+00 4.915E+00 . * . . .
3.500E+00 4.140E+00 . * . . .
3.600E+00 3.364E+00 . * . . .
3.700E+00 2.588E+00 . * . . .
3.800E+00 1.811E+00 . * . . .
3.900E+00 1.034E+00 .* . . .
4.000E+00 2.587E-01 * . . .
4.100E+00 9.744E-02 * . . .
4.200E+00 7.815E-02 * . . .
4.300E+00 6.806E-02 * . . .
4.400E+00 6.141E-02 * . . .
4.500E+00 5.657E-02 * . . .
4.600E+00 5.281E-02 * . . .
4.700E+00 4.981E-02 * . . .
4.800E+00 4.734E-02 * . . .
4.900E+00 4.525E-02 * . . .
5.000E+00 4.346E-02 * . . .
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
自偏压共源JFET放大器
络列表：
common source jfet amplifier
vin 1 0 sin(0 1 60 0 0)
vdd 3 0 dc 20
rdrain 3 2 10k
rsource 4 0 1k
j1 2 1 4 mod1
.model mod1 njf
.tran 1m 30m
.plot tran v(2,0) v(1,0)
.end
输出：
legend:
*: v(2)
+: v(1)
time v(2)
(*)——— 1.400E+01 1.600E+01 1.800E+01 2.000E+01 2.200E+01
(+)——— -1.000E+00 -5.000E-01 0.000E+00 5.000E-01 1.000E+00
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
0.000E+00 1.708E+01 . . * + . .
1.000E-03 1.609E+01 . .* . + . .
2.000E-03 1.516E+01 . * . . . + .
3.000E-03 1.448E+01 . * . . . + .
4.000E-03 1.419E+01 .* . . . +
5.000E-03 1.432E+01 . * . . . +.
6.000E-03 1.490E+01 . * . . . + .
7.000E-03 1.577E+01 . * . . +. .
8.000E-03 1.676E+01 . . * . + . .
9.000E-03 1.768E+01 . . + *. . .
1.000E-02 1.841E+01 . + . . * . .
1.100E-02 1.890E+01 . + . . * . .
1.200E-02 1.912E+01 .+ . . * . .
1.300E-02 1.912E+01 .+ . . * . .
1.400E-02 1.890E+01 . + . . * . .
1.500E-02 1.842E+01 . + . . * . .
1.600E-02 1.768E+01 . . + *. . .
1.700E-02 1.676E+01 . . * . + . .
1.800E-02 1.577E+01 . * . . +. .
1.900E-02 1.491E+01 . * . . . + .
2.000E-02 1.432E+01 . * . . . +.
2.100E-02 1.419E+01 .* . . . +
2.200E-02 1.449E+01 . * . . . + .
2.300E-02 1.516E+01 . * . . . + .
2.400E-02 1.609E+01 . .* . + . .
2.500E-02 1.708E+01 . . * + . .
2.600E-02 1.796E+01 . . + * . .
2.700E-02 1.861E+01 . + . . * . .
2.800E-02 1.900E+01 . + . . * . .
2.900E-02 1.916E+01 + . . * . .
3.000E-02 1.908E+01 .+ . . * . .
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
逆变运算放大器电路
为了在SPICE中模拟一个理想的运算放大器，我们使用电压依赖型电压源作为具有极高增益的差分放大器。“的”e“该卡用四个节点建立独立的电压源，3和0用于电压输出，1和0用于电压输入。与实际的运算放大器不同，依赖电压源不需要电源。在这种情况下，电压增益设置为999000。输入电压源（V one)以0.05伏的步进从0伏扫到3.5伏。
络列表：
Inverting opamp
v1 2 0 dc
e 3 0 0 1 999k
r1 3 1 3.29k
r2 1 2 1.18k
.dc v1 0 3.5 0.05
.print dc v(3,0)
.end
输出：
v1 v(3)
0.000E+00 0.000E+00
5.000E-02 -1.394E-01
1.000E-01 -2.788E-01
1.500E-01 -4.182E-01
2.000E-01 -5.576E-01
2.500E-01 -6.970E-01
3.000E-01 -8.364E-01
3.500E-01 -9.758E-01
4.000E-01 -1.115E+00
4.500E-01 -1.255E+00
5.000E-01 -1.394E+00
5.500E-01 -1.533E+00
6.000E-01 -1.673E+00
6.500E-01 -1.812E+00
7.000E-01 -1.952E+00
7.500E-01 -2.091E+00
8.000E-01 -2.231E+00
8.500E-01 -2.370E+00
9.000E-01 -2.509E+00
9.500E-01 -2.649E+00
1.000E+00 -2.788E+00
1.050E+00 -2.928E+00
1.100E+00 -3.067E+00
1.150E+00 -3.206E+00
1.200E+00 -3.346E+00
1.250E+00 -3.485E+00
1.300E+00 -3.625E+00
1.350E+00 -3.764E+00
1.400E+00 -3.903E+00
1.450E+00 -4.043E+00
1.500E+00 -4.182E+00
1.550E+00 -4.322E+00
1.600E+00 -4.461E+00
1.650E+00 -4.600E+00
1.700E+00 -4.740E+00
1.750E+00 -4.879E+00
1.800E+00 -5.019E+00
1.850E+00 -5.158E+00
1.900E+00 -5.297E+00
1.950E+00 -5.437E+00
2.000E+00 -5.576E+00
2.050E+00 -5.716E+00
2.100E+00 -5.855E+00
2.150E+00 -5.994E+00
2.200E+00 -6.134E+00
2.250E+00 -6.273E+00
2.300E+00 -6.413E+00
2.350E+00 -6.552E+00
2.400E+00 -6.692E+00
2.450E+00 -6.831E+00
2.500E+00 -6.970E+00
2.550E+00 -7.110E+00
2.600E+00 -7.249E+00
2.650E+00 -7.389E+00
2.700E+00 -7.528E+00
2.750E+00 -7.667E+00
2.800E+00 -7.807E+00
2.850E+00 -7.946E+00
2.900E+00 -8.086E+00
2.950E+00 -8.225E+00
3.000E+00 -8.364E+00
3.050E+00 -8.504E+00
3.100E+00 -8.643E+00
3.150E+00 -8.783E+00
3.200E+00 -8.922E+00
3.250E+00 -9.061E+00
3.300E+00 -9.201E+00
3.350E+00 -9.340E+00
3.400E+00 -9.480E+00
3.450E+00 -9.619E+00
3.500E+00 -9.758E+00
无反转运算放大器电路
调味品怪癖的另一个例子：因为依赖电压源”e“不被视为负载电压源V one，SPICE解释V one会拒绝分析。解决方法是连接R伪造的与V平行 one作为直流负载。直接连接在V形 one，R的电阻伪造的对电路的运行不是至关重要的，所以10 kΩ就可以了。我决定不扫V one为了保持 络表和输出列表的简单，在这个电路中输入电压。
络列表：
noninverting opamp
v1 2 0 dc 5
rbogus 2 0 10k
e 3 0 2 1 999k
r1 3 1 20k
r2 1 0 10k
.end
输出：
node voltage node voltage node voltage
( 1) 5.0000 ( 2) 5.0000 ( 3) 15.0000
仪表放大器
注意电阻R非常高假象1和R假象2 络列表中的电阻（为简洁起见，未在示意图中显示），以防止SPICE认为V one和V two都是开路的，就像其他运算放大器电路的例子一样。
络列表：
Instrumentation amplifier
v1 1 0
rbogus1 1 0 9e12
v2 4 0 dc 5
rbogus2 4 0 9e12
e1 3 0 1 2 999k
e2 6 0 4 5 999k
e3 9 0 8 7 999k
rload 9 0 10k
r1 2 3 10k
rgain 2 5 10k
r2 5 6 10k
r3 3 7 10k
r4 7 9 10k
r5 6 8 10k
r6 8 0 10k
.dc v1 0 10 1
.print dc v(9) v(3,6)
.end
输出：
v1 v(9) v(3,6)
0.000E+00 1.500E+01 -1.500E+01
1.000E+00 1.200E+01 -1.200E+01
2.000E+00 9.000E+00 -9.000E+00
3.000E+00 6.000E+00 -6.000E+00
4.000E+00 3.000E+00 -3.000E+00
5.000E+00 9.955E-11 -9.956E-11
6.000E+00 -3.000E+00 3.000E+00
7.000E+00 -6.000E+00 6.000E+00
8.000E+00 -9.000E+00 9.000E+00
9.000E+00 -1.200E+01 1.200E+01
1.000E+01 -1.500E+01 1.500E+01
正弦波输入运算放大器积分器
络列表：
Integrator with sinewave input
vin 1 0 sin (0 15 60 0 0)
r1 1 2 10k
c1 2 3 150u ic=0
e 3 0 0 2 999k
.tran 1m 30m uic
.plot tran v(1,0) v(3,0)
.end
输出：
legend:
*: v(1)
+: v(3)
time v(1)
(*)——– -2.000E+01 -1.000E+01 0.000E+00 1.000E+01
(+)——– -6.000E-02 -4.000E-02 -2.000E-02 0.000E+00
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
0.000E+00 6.536E-08 . . * + .
1.000E-03 5.516E+00 . . . * +. .
2.000E-03 1.021E+01 . . . + * .
3.000E-03 1.350E+01 . . . + . * .
4.000E-03 1.495E+01 . . + . . *.
5.000E-03 1.418E+01 . . + . . * .
6.000E-03 1.150E+01 . + . . . * .
7.000E-03 7.214E+00 . + . . * . .
8.000E-03 1.867E+00 .+ . . * . .
9.000E-03 -3.709E+00 . + . * . . .
1.000E-02 -8.805E+00 . + . * . . .
1.100E-02 -1.259E+01 . * + . . .
1.200E-02 -1.466E+01 . * . + . . .
1.300E-02 -1.471E+01 . * . +. . .
1.400E-02 -1.259E+01 . * . . + . .
1.500E-02 -8.774E+00 . . * . + . .
1.600E-02 -3.723E+00 . . * . +. .
1.700E-02 1.870E+00 . . . * + .
1.800E-02 7.188E+00 . . . * + . .
1.900E-02 1.154E+01 . . . + . * .
2.000E-02 1.418E+01 . . .+ . * .
2.100E-02 1.490E+01 . . + . . *.
2.200E-02 1.355E+01 . . + . . * .
2.300E-02 1.020E+01 . + . . * .
2.400E-02 5.496E+00 . + . . * . .
2.500E-02 -1.486E-03 .+ . * . .
2.600E-02 -5.489E+00 . + . * . . .
2.700E-02 -1.021E+01 . + * . . .
2.800E-02 -1.355E+01 . * . + . . .
2.900E-02 -1.488E+01 . * . + . . .
3.000E-02 -1.427E+01 . * . .+ . .
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
方波输入运算放大器积分器
络列表：
Integrator with squarewave input
vin 1 0 pulse (-1 1 0 0 0 10m 20m)
r1 1 2 1k
c1 2 3 150u ic=0
e 3 0 0 2 999k
.tran 1m 50m uic
.plot tran v(1,0) v(3,0)
.end
输出：
legend:
*: v(1)
+: v(3)
time v(1)
(*)——– -1.000E+00 -5.000E-01 0.000E+00 5.000E-01 1.000E+00
(+)——– -1.000E-01 -5.000E-02 0.000E+00 5.000E-02 1.000E-01
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
0.000E+00 -1.000E+00 * . + . .
1.000E-03 1.000E+00 . . + . *
2.000E-03 1.000E+00 . . + . . *
3.000E-03 1.000E+00 . . + . . *
4.000E-03 1.000E+00 . . + . . *
5.000E-03 1.000E+00 . . + . . *
6.000E-03 1.000E+00 . . + . . *
7.000E-03 1.000E+00 . . + . . *
8.000E-03 1.000E+00 . .+ . . *
9.000E-03 1.000E+00 . +. . . *
1.000E-02 1.000E+00 . + . . . *
1.100E-02 1.000E+00 . + . . . *
1.200E-02 -1.000E+00 * + . . . .
1.300E-02 -1.000E+00 * + . . . .
1.400E-02 -1.000E+00 * +. . . .
1.500E-02 -1.000E+00 * .+ . . .
1.600E-02 -1.000E+00 * . + . . .
1.700E-02 -1.000E+00 * . + . . .
1.800E-02 -1.000E+00 * . + . . .
1.900E-02 -1.000E+00 * . + . . .
2.000E-02 -1.000E+00 * . + . . .
2.100E-02 1.000E+00 . . + . . *
2.200E-02 1.000E+00 . . + . . *
2.300E-02 1.000E+00 . . + . . *
2.400E-02 1.000E+00 . . + . . *
2.500E-02 1.000E+00 . . + . . *
2.600E-02 1.000E+00 . .+ . . *
2.700E-02 1.000E+00 . +. . . *
2.800E-02 1.000E+00 . + . . . *
2.900E-02 1.000E+00 . + . . . *
3.000E-02 1.000E+00 . + . . . *
3.100E-02 1.000E+00 . + . . . *
3.200E-02 -1.000E+00 * + . . . .
3.300E-02 -1.000E+00 * + . . . .
3.400E-02 -1.000E+00 * + . . . .
3.500E-02 -1.000E+00 * + . . . .
3.600E-02 -1.000E+00 * +. . . .
3.700E-02 -1.000E+00 * .+ . . .
3.800E-02 -1.000E+00 * . + . . .
3.900E-02 -1.000E+00 * . + . . .
4.000E-02 -1.000E+00 * . + . . .
4.100E-02 1.000E+00 . . + . . *
4.200E-02 1.000E+00 . . + . . *
4.300E-02 1.000E+00 . . + . . *
4.400E-02 1.000E+00 . .+ . . *
4.500E-02 1.000E+00 . +. . . *
4.600E-02 1.000E+00 . + . . . *
4.700E-02 1.000E+00 . + . . . *
4.800E-02 1.000E+00 . + . . . *
4.900E-02 1.000E+00 . + . . . *
5.000E-02 1.000E+00 + . . . *
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
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