Learn more about Simulink

Transfer Fcn Lead or Lag - Implement discrete-time lead or lag compensator

Library

Discrete

Description

The Transfer Fcn Lead or Lag block implements a discrete-time lead or lag compensator of the input. The instantaneous gain of the compensator is one, and the DC gain is equal to (1-z)/(1-p), where z is the zero and p is the pole of the compensator.

The block implements a lead compensator when 0 < z < p < 1, and implements a lag compensator when 0 < p < z < 1.

Data Type Support

The Transfer Fcn Lead or Lag block accepts signals of any numeric data type supported by Simulink software, including fixed-point data types.

Parameters and Dialog Box

Pole of compensator (in Z plane)

Set the pole.

Zero of compensator (in Z plane)

Set the zero.

Initial condition for previous output

Set the initial condition for the previous output.

Initial condition for previous input

Set the initial condition for the previous input.

Integer rounding mode

Select the rounding mode for fixed-point operations. For more information, see Rounding in the Simulink Fixed Point User's Guide.

Saturate to max or min when overflows occur

If selected, fixed-point overflows saturate.

Characteristics

Direct Feedthrough	Yes
Scalar Expansion	Yes, of initial conditions

Transfer Fcn First Order

Transfer Fcn Real Zero

© 1984-2009- The MathWorks, Inc.    -   Site Help   -   Patents   -   Trademarks   -   Privacy Policy   -   Preventing Piracy   -   RSS