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E-002 — Pure feedforward topology chosen for v8 simulation (no closed-loop control) decision

Created by demo · 2026-06-24

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Details

After 7 iterations resolving instability, LC-ring at startup, regulation droop, wind-up, and solver convergence issues, v8 settled on pure feedforward with η = 0.95 tuned to match v7 measured efficiency. No closed-loop integrator or error amplifier is present in the current simulation. Consequence: v8 is a topology demonstrator only. Real hardware will use the LM5156 in current-mode control (as specified in ARC-02). The v7 5 V offset at 56 V output is an artefact of η mismatch, not a fundamental limitation of the design.

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