PS Bias

R2026b

Add constant bias to input physical signal

Since R2023b

• 

PS Bias block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
Simscape / Foundation Library / Physical Signals / Functions

Description

The PS Bias block adds a constant bias to the input physical signal:

$$y=u+b$$

where:

• y is the physical signal at the output port O.

• u is the physical signal at the input port I.

• b is the bias.

Ports

Input

I — Input physical signal, untyped

physical signal

Input physical signal.

The port name is not visible in the block icon, but you can see this name in the underlying source file by clicking the Source code link in the Description tab of the block dialog box.

Programmatic Use

Port: I

Output

O — Output physical signal, untyped

physical signal

Output physical signal.

The port name is not visible in the block icon, but you can see this name in the underlying source file by clicking the Source code link in the Description tab of the block dialog box.

Programmatic Use

Port: O

Parameters

Bias — Constant bias to add to input signal

1 1 (default)

The constant bias to add to the input signal. The first edit box represents the value of the bias. If the input signal is a scalar, this value must also be a scalar. If the input signal is a vector or a matrix, then this value can either be a scalar, or a vector or matrix matching the dimensions of the input signal. You can specify both positive and negative values.

The second combo box represents the unit of the bias. This unit must be commensurate with the unit of the input signal. By default, the unit is 1 (unitless). You can select a unit from the drop-down list or type the desired unit name, such as rpm, or a valid expression, such as rad/s. For more information and a list of unit abbreviations, see How to Specify Units in Block Dialogs and Unit Definitions.

Programmatic Use

Parameter: bias

Programmatic Use: Add Block

To add the block programmatically, use the add_block function with one of these library block paths as the source.

"fl_lib/Physical Signals/Functions/PS Bias"

Example: add_block("fl_lib/Physical Signals/Functions/PS Bias","myModel/myBlock",MakeNameUnique="on")

For information about programmatic access to individual block parameters, see the Programmatic Use section of parameter descriptions on this page.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced in R2023b

R2026a: Dynamic block icon

Starting in R2026a, the block icon displays the Bias parameter value and unit.