三极管参数等

附件

A

、三极管的

Ps pice

模型参数

.Model

NPN(PNP

、

LPNP) [model parameters]

模型参数

含

义

单

位

AF

flicker noise exponent

BF

ideal maximum forward beta

BR

ideal maximum reverse beta

CJC

base-collector zero-bias p-n capacitance

farad

CJE

base-emitter zero-bias p-n capacitance

farad

CJS (CCS)

Substrate zero-bias p-n capacitance

farad

EG

bandgap voltage (barrier height)

eV

FC

forward-bias depletion capacitor coefficient

GAMMA

epitaxial region doping factor

IKF (IK)

corner for forward-beta high-current roll-off

amp

IKR

corner for reverse-beta high-current roll-off

amp

IRB

current at which Rb falls halfway to

amp

IS

transport saturation current

amp

ISC (C4)

base-collector leakage saturation current

amp

ISE (C2)

base-emitter leakage saturation current

amp

ISS

substrate p-n saturation current

amp

ITF

transit time dependency on Ic

amp

KF

flicker noise coefficient

MJC (MC)

base-collector p-n grading factor

MJE (ME)

base-emitter p-n grading factor

MJS (MS)

substrate p-n grading factor

NC

base- collector leakage emission coefficient

NE

base-emitter leakage emission coefficient

NF

forward current emission coefficient

NK

high-current roll-off coefficient

NR

reverse current emission coefficient

NS

substrate p-n emission coefficient

PTF

degree

excess phase @ 1/(2

?

?

TF)Hz

默认值

1.0

100.0

1.0

0.0

0.0

0.0

1.11

0.5

1E-11

infinite

infinite

infinite

1E-16

0.0

0.0

0.0

0.0

0.0

0.33

0.33

0.0

2.0

1.5

1.0

0.5

1.0

1.0

0.0

备

注

噪声指数

最大正向放大倍数

最大反向放大倍数

集电结电容

发射结电容

零偏集电极

-

衬底电容

饱和电流

集电结漏电流

发射结漏电流

噪声系数

集电结漏电系数

发射结漏电系数

正向电流系数

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QCO

RB

epitaxial region charge factor

coulomb

zero-bias (maximum) base resistance

ohm

RBM

minimum base resistance

ohm

RC

collector ohmic resistance

ohm

RCO

epitaxial region resistance

ohm

RE

emitter ohmic resistance

ohm

TF

ideal forward transit time

sec

TR

ideal reverse transit time

sec

0

-1

TRB1

RB temperature coefficient (linear)

C

0

TRB2

RB temperature coefficient (quadratic)

C

-2

0

-1

TRC1

RC temperature coefficient (linear)

C

0

TRC2

RC temperature coefficient (quadratic)

C

-2

0

-1

TRE1

RE temperature coefficient (linear)

C

0

TRE2

RE temperature coefficient (quadratic)

C

-2

0

-1

TRM1

RBM temperature coefficient (linear)

C

0

TRM2

RBM temperature coefficient (quadratic)

C

-2

0

T_ABS

absolute temperature

C

0

T_MEASURED

measured temperature

C

0

T_REL_GLOBAL

relative to current temperature

C

0

T_REL_LOCAL

relative to AKO model temperature

C

VAF (VA)

forward Early voltage

volt

VAR (VB)

reverse Early voltage

volt

VJC (PC)

base-collector built-in potential

volt

VJE (PE)

base-emitter built-in potential

volt

VJS (PS)

substrate p-n built-in potential

volt

VO

carrier mobility knee voltage

volt

VTF

transit time dependency on Vbc

volt

XCJC

fraction of

CJC

connected internally to Rb

XCJC2

fraction of

CJC

connected internally to Rb

XTB

forward and reverse beta temperature coefficient

XTF

transit time bias dependence coefficient

XTI (PT)

IS temperature effect exponent

0.0

0.0

RB

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

infinite

infinite

0.75

0.75

0.75

10.0

infinite

1.0

1.0

0.0

0.0

3.0

最大基极电阻

最小基极电阻

正向传递时间

反向传递时间

RB

的温度系数

正向和反向放大倍数的温度影响系数

传递时间系数

IS

的温度影响系数

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附件

B

、

PSpice Goal Function

特征函数

Bandwidth (1, db_level)

BPBW (1, db_level)

CenterFreq (1, db_level)

Falltime (1)

Gain Margin (1,2)

GenFall (1)

GenRise (1)

HPBW (1, db_level)

LPBW (1, db_level)

Maxr (1, begin-x, end-x)

Overshoot (1)

Peak (1, n_occur)

Period (1)

Phase Margin (1,2)

Pulsewidth (1)

Risetime (1)

Swingr (1, begin-x, end-x)

TPmW2 (1, Period)

XatNthy (1, Y-value, n-occur)

XatNthYn(1,Y_value,n_occur)

XatNthYp(1,Y_value,n_occur)

XatNthYpct(1,Y_PCT,n_occur)

YatX(1,X_value)

YatXpct(1,X_pct)

功能说明

计算波形

< br>1

从最大值下降

db_level db

的波形宽度。

Same as Bandwidth (1, db_level)

计算波形

1

从最大值下降

db_level db

的两点的中心频率。

计算波形< /p>

1

的下降时间。

计算波形

1

的相位为

-180

。

时，波形

2

的分贝 值。

类似于

Falltime (1)

，但 它的下降时间相对的

y

轴是起点于终点，而不是最大值与最小值 。

与

GenFall (1)

类似，只是它是上升时间。

查找第一次比最大值低

db_level db

的

x

坐标。

（上升沿）

与

HPBW

类似， 只是用于下降沿。

查找区间的最大值。

计算最大值与终 点之间

y

轴坐标差与终点值的百分比。

查找第

n-occur

个峰值点的

Y

值

计算波形< /p>

1

的周期。

查 找波形

1

在

0

分贝时波形

2

的相位。

计算波形

1

的脉冲宽度。

计算波形

1

的上升时间。

计算在指定范围内，波形

1

的最大值与最小值之差。

查找波 形

1

上第

n-occur

个

Y-value

值时的

X

坐标值。

与

XatNthy

类似，但它查找的

Y

值 必须在下降沿上。

与

XatNthy

类似，但它查找的

Y

值必须在上升沿上 。

查找第

n-occur

Y

轴值为

Y

Y_pct%

时的

X

轴值。

查找

X-value

值处的

Y

值。

查找

X

轴值为< /p>

X

轴范围的

X_pct%

时的

Y

轴值。

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附件

C Modeling voltage- controlled and temperature-dependent resistors

Analog Behavioral Modeling (ABM) can be used to model a nonlinear resistor through use of Ohm

抯

law and tables

and expressions which describe resistance. Here are some examples.

Voltage-controlled resistor

If a Resistance vs. Voltage curve is available, a look-up table can be used in the ABM expression. This table

contains (Voltage, Resistance) pairs picked from points on the curve. The voltage input is nonlinearly mapped

from

the

voltage

values

in

the

table

to

the

resistance

values.

Linear

interpolation

is

used

between

table

values.

Let

抯

say that points picked from a Resistance vs. Voltage curve are:

Voltage

0.5

1.0

2.0

Resistance

25

50

100

The ABM expression for this is shown in

Figure 1

.

Figure 1 - Voltage controlled resistor using look-up table

Temperature-dependent resistor

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A temperature-dependent resistor (or thermistor) can be modeled with a look-up table, or an expression can be

used to describe how the resistance varies with temperature. The denominator in the expression in

Figure 2

is

used

to

describe

common

thermistors.

The

TEMP

variable

in

the

expression

is

the

simulation

temperature,

in

Celsius.

This is then converted to Kelvin by adding 273.15. This step is necessary to avoid a divide by zero problem in

the denominator, when T=0 C.

NOTE: TEMP can only be used in ABM expressions (E, G devices).

Figure 3

shows the results of a DC sweep of temperature from -40 to 60 C. The y-axis shows the resistance or

V(I1:-)/1A.

Figure 2 - Temperature controlled resistor

Figure 3 - PSpice plot of Resistance vs. Temperature (current=1A)

Variable Q RLC network

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