Page 8 · Future policy, guard-bounce concept, and ongoing native studies

Conceptual page only · no new VRM simulation on this page · connects Page 7 exploratory evidence to next controller design steps

1 · Exploration needs an accept-or-reject decision

ILLUSTRATIVE POLICY
A rare local frequency perturbation may cross a ripple-cost barrier. The controller must judge the settled outcome using only its own history and the common Vout.
Locally measured ripple cost Higher-ripple well Lower-ripple well Barrier Accept better basin
If the trial worsens local Vout ripple or crosses a guard, reject and attempt a bounded reverse action—then independently verify recovery.

Not native trajectories: this is a schematic 1D slice through a high-dimensional phase space. Page 7 tested a preselected pulse, not the accept/reject logic illustrated here.

2 · Guard bounce: explore without losing control

FUTURE WORK · NOT TESTED
Use fast local Vout monitoring to interrupt a bad probe, then reverse or recover its effect. A separate settled-RMS decision determines whether an otherwise tolerable move helped.
Observed ripple / envelope Proposed local soft guard Trial / evaluation Before Probe Recover & measure Probe stayed tolerable
When the observed local guard trips, the proposed controller halts the exploratory command and attempts rollback. The plant state is checked again after settling.

Thresholds and waveforms here are illustrative, not electrical limits or native Vout measurements.

3 · 3D phase-map intuition

CONCEPTUAL LANDSCAPE
A 3D-style view helps explain why a controller may be trapped in one basin, cross a ridge, or intentionally return after a bad exploratory pulse.
Higher-ripple well Lower-ripple well Probe over ridge Conceptual 3D phase-space slice

4 · Heatmap + contour view

TOP-VIEW PHASE MAP
This 2D top view connects the conceptual 3D picture to the kinds of phase-space heatmaps used throughout the ripple study.
Basin A Basin B Illustrative crossing path Contours show conceptual equal-ripple bands, not measured VRM values.

5 · Ongoing native studies that inform the future policy

HISTORICAL NATIVE EVIDENCE
The future controller ideas above are motivated by prior native two-basin studies and guard-headroom experiments. These are not final VRM proofs, but they show the type of measured behavior that a future accept/reject or guard-bounce policy should explain.
  • Historic multi-basin native phase trajectories motivated the idea of basin escape and bounded probing.
  • Matched guard-headroom runs suggested that acceptance vs rejection depends on available ripple margin.
  • The next controller should make decisions locally using only sensed ripple history, not a global map.
  • This page keeps the distinction explicit: conceptual controller logic here, native evidence in the linked appendix.
Open R39P2 native guard-headroom appendix
Page 7
One preselected exploratory pulse tested
Future
Autonomous accept / reject logic
Future
Guard-bounce with rollback
Appendix
Historical native guard-headroom study
Appendix note: if the linked local HTML exists, the button above opens [local research archive]/LTSPICE_LAB/ripple_interleaving/Native3_R39P2_ACTUAL_GUARD_HEADROOM_PRESENTATION_HEATMAP/R39P2_MATCHED_SIX_REAL_NATIVE_GUARD_PLAY.html. If the file is missing or moved, update the path in this generator script and rebuild.

Boundary of this page: no new VRM simulations were run here. This is a presentation / future-work page built from conceptual illustrations plus a pointer to existing native evidence.

Open the historical R39 native guard-headroom appendix