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Free Engineering Library

Guides, Workshop Slides & Tools

Over 1,500 pages of practical material on brushless motor design, motor control, inverters, firmware and finite element analysis, from Rakesh Dhawan’s 34+ years of hands-on engineering. Register once to unlock every download.

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    Library unlocked. Click any item to download. Want ready-to-run simulation models? Browse Simulations.

    Fundamentals of Brushless PM Motor Design

    A seven-part series that takes you from first principles to motor selection and mounting.

    PDFPart 1: Fundamentals32 pages · 1.2 MB🔒PDFPart 2: Electromagnetic Architectures20 pages · 1.0 MB🔒PDFPart 3: Analytical Methods31 pages · 1.6 MB🔒PDFPart 4: Estimating Motor Parameters45 pages · 1.0 MB🔒PDFPart 5: Power Transmission in Motors29 pages · 0.6 MB🔒PDFPart 6: Motor Selection Criteria23 pages · 0.9 MB🔒PDFPart 7: Motor Mounting & Vibration Isolation29 pages · 1.2 MB🔒

    Open-Source AI-Powered Motor, Inverter, Hardware & Firmware Design (2025 Workshop)

    The complete slide set from our latest 3-day workshop, divided into topic sections.

    PDFPart A: Python & AI for Motor Design (Modules 1–3)104 pages · 2.0 MB🔒PDFPart B: Open-Source Motor Architectures & FEA (Modules 4–5)133 pages · 2.7 MB🔒PDFPart C: Slot & Pole Combinations for PM Motors (Module 6)65 pages · 1.7 MB🔒PDFPart D: Space Vectors with Open-Source Tools (Module 8)46 pages · 1.8 MB🔒PDFPart E: Power Stage Design incl. High-Voltage PFC Example (Module 9)142 pages · 5.4 MB🔒PDFPart F: Motor Control Firmware Development (Module 10)96 pages · 3.5 MB🔒PDFPart G: Stability, Thermal Analysis & FEMM (Modules 11–13)79 pages · 1.9 MB🔒

    3-Day Workshop on Motor, Inverter, Hardware & Firmware Design (April 2025)

    Full slides from each day. Watch the matching lectures in our Video Library.

    PDFDay One: Motor Design Fundamentals105 pages · 4.8 MB🔒PDFDay Two: Inverter Hardware Design216 pages · 9.0 MB🔒PDFDay Three: Firmware & Finite Element Analysis82 pages · 7.0 MB🔒

    Motor Control & Design Guides

    Focused guides and worked examples.

    PDFDynamic Modeling of BLDC Motors101 pages · 2.3 MB🔒PDFMotor Control Tuning with the MCE Wizard50 pages · 1.2 MB🔒PDFDigital Control for Power Basics, Part I16 pages · 0.2 MB🔒PDFDigital Control for Power Basics, Part II18 pages · 0.3 MB🔒PDFUnderstanding Copper Losses in a Brushless PM Motor Design2 pages🔒PDFMagnetic Circuit Calculation: Worked Example2 pages🔒PDFMagnetic Fields in Air vs. Vacuum3 pages🔒PDFKeys to Efficient Motor Control Code Development11 slides🔒PDFFunctional Safety in Motor Control: Topics & References16 pages🔒

    Tools & Leadership

    ZIPFreeCAD Radial Flux Motor Generator (macros + guides)ZIP · Python macros, validator, user guide🔒PDFCrisis Project Management3-page article🔒

    All materials © Power Electronics Group LLC, part of Power Flux AI Inc. Free for personal and educational use; not for resale or redistribution. Need a team license or on-site training? Contact us.