Hello Circuit Designers,I would like to share with you some thoughts on the challenges the NI design solution helps engineers to overcome in the Clean Energy domain, specifically, the challenges of bringing the worlds of analog and digital circuits together. The earlier the system dynamics and the complex interactions between analog circuitry and digital code are predicted, the more efficient and powerful the design strategy becomes. This early interaction is what NI simulation and prototyping tools of NI Multisim, NI LabVIEW, and NI embedded RIO platforms tries to accomplish for designers.The variable time-step co-simulation between Multisim and LabVIEW of closed loop systems accounts for important behaviors that are essential in judging the overall system performance including non-linearities, resonances, and harmonics very early in the design stage. Moreover, the design solution is completed by combining simulation tools with integrated hardware implementation tying the analog world to FPGA platofrms.Download Multisim 12 and LabVIEW 2011 and let me know what you think.Mahmoud WNational Instruments

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Multisim and LabVIEW Variable Time-step Simulation Fills Big Gaps in Analog/Digital System Design

From your simulation results with MOSFET_DIODE_THERMAL model, the output voltage of H bridge is +-200V, all right? But the input DC voltage is 400V. They didn't match well. Is this the problem of MOSFET model? I tried to use ideal transistor-diode model and the output voltage of H bridge is +-200V as well.