Fresu Electronics · Course Series

PCB Design Courses
Built From First Principles

Four resources per series — explainer, interactive course, cheat sheet, and decision wizard. Buy standalone or get everything free in PCB Zero.

All series free inside PCB Zero →
PDN Design Series
Available now
Series 01 · Power Delivery Networks

PDN Design for High-Speed PCBs

Impedance, inductance, decoupling, and stackup design for boards that pass EMC first time.

Visual explainer — 8 illustrated sections
Mini-course — 10 chapters + quizzes
A4 cheat sheet — print-ready
Decision wizard — personalised output
Included Included free in PCB Zero
Get PDN Series → Or get this free in PCB Zero →
Terminated Unterminated — ringing RETURN REFERENCE PLANE
Available now
Series 02 · Signal Integrity

SI Design for High-Speed PCBs

EM field propagation, return paths, termination, crosstalk, and routing — a field-centric SI framework.

Visual explainer — 8 illustrated sections
Mini-course — 8 chapters + quizzes
A4 cheat sheet — print-ready
Decision wizard — personalised output
Included Included free in PCB Zero
Get SI Series → Or get this free in PCB Zero →
L L π-filter · coming soon
Coming soon
Series 03 · EMI Filter Design

EMI Filter Design for PCBs

Filter topologies, component selection, placement, and common-mode vs differential-mode strategies.

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EMI source? Systematic diagnosis · coming soon
Coming soon
Series 04 · EMI Troubleshooting

Systematic EMI Troubleshooting

A structured diagnostic framework for finding and fixing EMI problems on real boards — the series nobody else teaches.

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