orcad pspice Benutzerhandbuch

Control system parts

Math functions

The ABM math function parts are shown in 

. For 

each device, the corresponding template is shown, 
indicating the order in which the inputs are processed, if 
applicable.

Math function parts are based on the PSpice “E” device 
type. Each provides one or more inputs, and a 
mathematical function which is applied to the input. The 
result is output on the output net.

Table 1

ABS

 absolute value of the input

SQRT

 square root of the input

PWR

result of raising the absolute value of the 
input to the power specified by EXP

PWRS

result of raising the (signed) input value to 
the power specified by EXP

LOG

LOG of the input

LOG10

LOG

10

 of the input

EXP

result of 

raised to the power specified by 

the input value (

x

where x is the input)

SIN

 of the input (where the input is in 

radians)

COS

 of the input (where the input is in 

radians)

TAN

 of the input (where the input is in 

radians)

ATAN,
ARCTAN

-1

of the input (where the output is in 

radians)

Pspug.book  Page 167  Wednesday, November 11, 1998  1:14 PM