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Design Example: Brushed DC Motor H-Bridge Control PCB using NI Ultiboard and NI Multisim

Brushed DC Motor H-Bridge Control PCB Design and Co-Simulation using NI Ultiboard and NI Multisim

>> Read the tutorial <<

A DC motor H-bridge control circuit can be simulated in Multisim and LabVIEW using closed-loop analog and digital co-simulation, where Multisim’s SPICE engine simulated the analog circuitry of the MOSFET switches and the DC motor model while LabVIEW was used to simulate the control logic for the switching (including FPGA) as explained in this link.

The prototyping stage includes the deployment of the control code on NI CompactRIO and the prototyping of the PCB that includes all the electronic components using Ultiboard.

In this tutorial, the steps of translating the Multisim design into a PCB design are explained which has been fabricated by NI's partner, Sunstone Circuits, while the complete project page is available in the Desigcon 2012 publication here.




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