The Xilinx blockset for MATLAB & Simulink is a single toolbox that unifies Model Composer (HLS), System Generator for DSP (HDL) as well as the Xilinx AI Engine. Since recently, the Xilinx blockset is simply called Vitis Model Composer. How much does the Xilinx blockset for simulink cost? At the time of writing this page, the Xilinx…
The Direct output PWM block sets PWM output(s) directly to ‘0’ or ‘1’. This technique is typically used for Model Predictive Control (TN162) or Direct Torque Control (AN004). Like the other PWM blocks, the Direct output PWM block supports dead-time generation and can be activated or deactivated. More information is available on the PWM page. Simulink block Signal specification…
Thanks to its flexible output voltage range, the LLC resonant converter is a popular choice of topology for battery charger applications, such as onboard chargers in EVs. Additionally, due to its soft switching capabilities, this converter can be operated at high switching frequencies, while maintaining excellent efficiency. This leads to compact magnetics and a high…
This article provides some insights on the computation of optimized switching angles for use with imperix’s PP-PWM modulator. It introduces one possible approach for pre-computing one – or several – Optimized Pulse Patterns (OPPs) that can later be pre-loaded into a digital controller for use during run-time operation. In this example, Selective Harmonic Elimination (SHE)…
The Pulse Width Modulators (PWM) share the dead-time generation and the activate/deactivate features, configured through the output mode, deadtime, and activate parameters. The said PWM blocks are: CB-PWM – Carrier-based PWM SV-PWM – Space vector PWM SS-PWM – Multilevel PWM with Sort-&-Select balancing PP-PWM – Programmed Patterns PWM DO-PWM – Direct output PWM SB-PWM –…
This document is primarily intended for electronic board designers wishing to integrate the B-Board PRO into their designs. It essentially serves as documentation for the Eval-Board marketed by imperix and describes the implementation of the various components and functions it offers. Some additional functionalities that are not present on the Eval-Board are also detailed. To facilitate the…
This product note explains how to compute the discrete control delay of a control algorithm running on an imperix controller. Context The execution of a digital control algorithm inevitably introduces a delay along the control chain, which has an impact on the system response, and therefore on the achievable closed-loop control bandwidth. This delay is…
This note introduces the general operating principles of a simple Proportional-Integral PI controller. An example of current control for a boost converter is provided, along with a practical control implementation.
This note focuses on the multi-master feature which allows executing control codes on multiple imperix power converter controllers interconnected using optical fiber (SFP). The imperix in-house protocol RealSync allows for low latency communication (sub-μs) and high data exchange rate (hundreds of kHz) all while keeping synchronized sampling instants and PWM signals (±2ns). The Multi-converter system for…
Simple first-step guide to building NPC converters, taking as an example a 3-phase 3-level NPC converter supplied by a DC voltage and connected to a resistive load.
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