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Hierarchical Control Notes – Blending Style

This document provides insights into hierarchical control notes that detail blending styles utilized in advanced coil drivers and ESD systems—specifically focusing on the LASTI style. It discusses outdated seismic noise considerations and outlines the output paths for blended hierarchical control configurations. Key details include filtering methodologies—damped pendulum actuation, complimentary blend filters, and specific frequency requirements. The document serves as a comprehensive guide for implementing control systems that effectively suppress seismic noise and improve performance metrics.

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Hierarchical Control Notes – Blending Style

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  1. Hierarchical Control Notes – Blending Style Follows quad example Note: coil drivers and ESD are LASTI style; seismic noise is outdated G1200692

  2. Output path of blended H.C. C [counts] B [counts] S [counts] V [volts] O [meters] E2O & OUTF LP21 Pinv41 DAC Driver Coils & Mags E2O & OUTF HP21 LP32 Pinv42 DAC Driver Coils & Mags E2O & OUTF DAC Driver Coils & Mags HP32 LP43 Pinv43 ISC E2O & OUTF HP43 DAC Driver Coils & Mags Plant inv. filters Blend filters Damped Pend. Actuation Stage filters G1200692

  3. Complimentary Blend Filters Blend filters (B/C) Frequency (Hz) G1200692

  4. Plant inversion filters Frequency (Hz) G1200692

  5. Plant times inversion filters (O/B) G1200692 Frequency (Hz)

  6. Loop gain plots (O/C) G1200692 Frequency (Hz)

  7. Plant seen by ISC (sum of loop gains) (O/C) Frequency (Hz) G1200692

  8. Closed Loop DAC voltages (10 V limit) Estimated by: (V) G1200692

  9. Other plots G1200692

  10. Stage filters (S/C) Frequency (Hz) G1200692

  11. DARM noise to be suppressed GWINC Seismic requirement filtered by quad (outdated) G1200692

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