Kirsch Mackey

Kirsch Mackey is an electrical engineer, educator, and content creator with over 15 years of experience spanning power systems, control systems, electrical systems, embedded programming, PCB design, power electronics, and high-speed digital systems. As founder of HaSofu and former adjunct professor, he developed the MESH method—a structured approach to high-speed PCB design that has helped students land roles at companies like Apple, Intel, Cisco, Garmin and Amazon in months rather than years. Drawing from industry experience at Intel and beyond, Kirsch bridges theory and practice through technical writing, courses, and hands-on workshops that make complex engineering concepts accessible and actionable.

14 days ago
Pre-Tapeout Confidence: In-Design Checks for Power Integrity in Allegro X

Analyze PCB Power Integrity with Allegro X: Check DC IR-Drop, Return Path Continuity, Isolation Spacing DRC. Avoid issues like ground necking, ensure certification, and pass testing on the first run.

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14 days ago
Layout the Hot Loop, Save the EMI: Practical Allegro X Constraints for SMPS

Minimize EMI in your SMPS PCB design by understanding the 'hot loop' in PCB layout. Learn the 3 essential rules and how to put them into Allegro X constraints to pass compliance the first time.

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14 days ago
Magnetics First: How Transformer Choices Make or Break Your Design

The transformer is the heart of every flyback design. Learn how primary inductance, turns ratio, and saturation current make or break your design's efficiency and size.

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14 days ago
A Flyback That Starts Clean: Modeling Startup & Burden in PSpice

Use PSpice transient simulation to learn flyback power supply startup. Learn to tune soft-start, control inrush current, and prevent output voltage overshoot before you build hardware.

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24 days ago
Power Supply Design Guide 1: DC-DC Non-Isolated Flyback

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about 1 month ago
Thermal & EMI in Power Supply Design: The Physics Your Schematic Won't Show You

Addressing thermal and EMI issues early can prevent power supply design challenges. Learn practical guidelines, architecture strategies, and modern tools to design for compliance and avoid re-spins

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about 1 month ago
The Role of Control Loops in Stable Power Supplies

Discover how control loops impact power supply stability. Learn key concepts like loop gain, phase margin, and crossover frequency to design reliable power converters.

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about 1 month ago
Understanding Power Supply Topologies: From Buck to LLC Resonant

Master power supply topology selection. Compare Buck, Boost, Flyback, Forward, and LLC resonant converters using a practical framework. Simplify your design choices from low-power rails to high-effici

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24 days ago
Why Power Supply Architecture Matters in Modern Electronics

Learn why power supply architecture matters in electronics. Explore topologies, avoid common mistakes, and use practical frameworks to simplify your design with proven strategies.

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