llrf for sc heavy ion linear accelerators
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LLRF for SC Heavy Ion Linear Accelerators Paper study at USPAS17 - PowerPoint PPT Presentation

LLRF for SC Heavy Ion Linear Accelerators Paper study at USPAS17 Qi Chen IMPCAS and LBNL Low Level RF block-diagram Phase / Amplitude Detecting I & Q D e m o d u l a t o r RF LO Some trigonometric equations Low Level RF


  1. LLRF for SC Heavy Ion Linear Accelerators Paper study at USPAS17 Qi Chen IMPCAS and LBNL

  2. Low Level RF block-diagram

  3. Phase / Amplitude Detecting ● I & Q D e m o d u l a t o r RF LO

  4. Some trigonometric equations

  5. Low Level RF block-diagram

  6. Phase / Amplitude Modulation ● I & Q Modulator RF LO

  7. Some trigonometric equations

  8. How mixer works Ideal Mixer (Multiplier) ● We need new frequency Input Output Signal Signal Local Oscillator

  9. How to get 90° phase shift ● When a sinusoidal voltage is applied to either a simple capacitor or inductor, the resultant current that flows is "in quadrature" with the voltage.

  10. Low Level RF block-diagram

  11. Phase Diagram e d Q Value u t i l p m A Phase I Value

  12. I & Q Modulation ● I & Q Modulator Output

  13. Low Level RF block-diagram

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