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Positive Supply Rail

Ideal positive supply rail

  • Positive Supply Rail block

Simscape / Electrical / Sources


The Positive Supply Rail block represents an ideal positive supply rail. Use this block instead of the Simscape™DC Voltage Source block to define the output voltage relative to the SimscapeElectrical Reference block that must appear in each model.


Do not attach more than one Positive Supply Rail block to any connected line.



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Electrical conserving port associated to the positive supply rail positive voltage.


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The voltage at the output port relative to the Electrical Reference block ground port.

Extended Capabilities

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

Version History

Introduced in R2008a