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Ansoft Designer / Ansys Designer 在线帮助文档：

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   Current-Controlled Voltage Source, Piecewise Linear       

Current-Controlled Voltage Source, Piecewise Linear

 

Piecewise Linear CCVS Netlist Format

The format for a piecewise linear current-controlled voltage source (CCVS) is:

Hxxxx out+ out- [CCVS] PWL(1) vin

[DELTA=val] [SCALE=scale] [M=val]

[TC1=val] [TC2=val]

x1 y1 [... xK yK ]

out+ is the positive node and out- is the negative node of the voltage source. The entry CCVS is the default for the H element type. The entry PWL is required to identify the piecewise linear CCVS type. vin is the voltage source through which the control current flows. The input voltage source must be defined elsewhere in the netlist.

The x y pairs are the input current values and the corresponding output voltage values. For intermediate values that are not in the list of x values, the simulator calculates the corresponding output by interpolation from the given values. The use of the DELTA parameter allows you to control the curvature of the interpolation to guarantee that the 1st derivative of the curve is continuous.

 


Piecewise Linear CCVS Instance Parameters

Parameter

Description

Unit

Default

DELTA

Distance over which curvature is applied in the interpolation function

Zero produces linear interpolation, positive values produce continuous curvature over the waveform

Maximum is one-half of the smallest difference between control (input) values

None

One-fourth of the smallest difference between control (input) values

M

Multiplier to simulate multiple elements

None

1.0

SCALE

Multiplier for voltage

None

1.0

TC1

Linear (1st-order) temperature coefficient

°K-1

0.0

TC2

Quadratic (2nd-order) temperature coefficient

°K-2

0.0

Piecewise Linear CCVS Netlist Examples

Hpwl1 30 0 CCVS PWL(1) 21 0
+ 0.0 0.0
+ 0.5e-3 0.1
+ 1.0e-3 0.2
+ 4.0e-3 4.5
+ 4.5e-3 4.75
+ 5.0e-3 5.0



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