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AMCOM MK66 Guidance Module

AMCOM MK66 Guidance Module. 3-29-2005. Servo Driving. 20mA, 5V line (low current/low voltage line) Need to drive servo of 12V and 500mA to over 1A (high current line/medium voltage)

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AMCOM MK66 Guidance Module

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  1. AMCOM MK66 Guidance Module 3-29-2005

  2. Servo Driving • 20mA, 5V line (low current/low voltage line) • Need to drive servo of 12V and 500mA to over 1A (high current line/medium voltage) • Discussed possibility of using transformers, op-amps, step-up converter, other specific servo drive systems, etc. • ADP3000 – step-up/step-down switching regulator • National Semiconductor - LM2577 – simple switcher step-up regulator (ability to customize)

  3. Servo Line Signals • Send high-level output to line driving device • Once servo deflection occurs, stop while line voltage still high, return to neutral when line voltage low • One line each for positive and negative deflection • Drive Voltage = (Circuit V) AND (Sensor V)’

  4. Simulation…

  5. SimulationPhase 1 RS232 Navionic input simulation FPGA simulator (program runs here)

  6. SimulationPhase 2 RS232 Navionic input simulation FPGA runs flight software

  7. Simulation types • Fixed-frame • All inputs predetermined • System follows path, all error conditions known • Dynamic-frame • Inputs modified during trial run • e.g. addition of crosswinds • Path can be set to randomly modify

  8. IMU • Accel.  position translation routine in progress • Meeting established w/Dr. Milostan 3-30-2005 • Completion date 3-31-2005 • Integration into simulation by April 05 2005

  9. Construction • Female Interface: Previous: New:

  10. More Construction • Male Interface:

  11. More More Construction • Outer Shell: • 3.809” (nominal 3.75”) to 3.76” OD • Wall thickness 7/32” to 1/16” • Lathe utilized

  12. Construction To Do List: • Cut stub acme threads (internal and external) for both female and male, respectively • Professionally machined due to lack of tool and time • Finishing Touches using Mill and Lathe

  13. Servomotor!!!

  14. To Do: • Finalizing design on actuation mechanism • Ordering planetary gear • Finishing construction on interfaces and outer shell

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