Flyback Transformer Designer

Offline design, DCM/BCM/QR/CCM, core×turns×wire iteration, multi-output, sort by loss/volume/winding, built-in lib + My DB. PDF/JSON in 3 steps. On device.

Flyback Transformer Designer turns a flyback power supply specification into a complete transformer design — core, gap, turns, wire gauge, and loss budget — entirely on your device.

Built for power electronics engineers who need more than a spreadsheet. All four operating modes: DCM, BCM, QR, and CCM. Multi-secondary outputs with individual winding design, not single-rail simplifications.

How it works -- Three guided steps:

1. Enter your spec — Vin range, output voltages, power, frequency, and design constraints.
2. Review top-5 core candidates — gap, Lm, winding layout, wire selection, copper & core loss, thermal rise.
3. Export a professional summary report (PDF or JSON).

What sets it apart:

• Full core × turns × wire iteration with AP preselection — no manual hunting through datasheet.
• Built-in ferrite library (EE, PQ, RM, ETD, and more) + My Database for custom cores, materials, and bobbins.
• Parameter sweeps: f_sw, load, and Vin sensitivity charts — explore design trade-offs before you build.
• 100% offline. Computation stays on your device; no data ever leaves.
• Native on iPhone, iPad, and Mac (Apple Silicon); English & Chinese UI.

14-day free trial — full access, no credit card required. Annual App Store subscription unlocks Steps 2–3, My Database, and export after trial.

Privacy: https://tobebetter2026.github.io/Public-documents-Flyback-Transformer-Designer/privacy-policy.html
Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/