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Team 6: Defender - Magnetic Coilgun Turret Project

A detailed project on a magnetic coilgun turret with capabilities like firing projectiles using magnetic force, controlling projectile aim through azimuth and elevation angles, target recognition, and more. The project includes parts used, microcontroller details, firing control considerations, IGBT options, and stepper motor specifics for a comprehensive setup.

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Team 6: Defender - Magnetic Coilgun Turret Project

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  1. Stephen Wolf Kirk Iler Brian Bentz FuheXu Team 6:Defender

  2. Updated PSSCs • 1. An ability to fire a projectile using magnetic force • 2. An ability to aim the projectile by controlling of the azimuth and elevation angles of the barrel • 3. An ability to charge a capacitor bank to a variable voltage, up to 400V • 4. An ability to gather images and perform target recognition and tracking • 5. An ability for a user to enter commands and display the status of the turret through an external interface Team 6: Defender

  3. Block Diagram Team 6: Defender

  4. Constraint Considerations • High voltage, current requirements for coilgun; safety considerations • Various communication protocols • Computation on Atom board • Cost, Availability, Samples? Team 6: Defender

  5. “Free” Parts • Donated, custom built, or used with professor permission • Atom board: onboard computation • Cameras: Canon VC-C50i with PTZ • Capacitors: 3900μF, 400V max electrolytics(x4). U32L • Coilgun Barrel Team 6: Defender

  6. Master Microcontroller • 8 bit vs 16 bit • Freescalevs PIC vs Atmel • Needs I2C, USB, maybe others • Easy to program • 3.3V vs 5V • C programming capability • Memory / RAM / MIPS (not as important) • In circuit debugging Team 6: Defender

  7. Master Microcontroller • PIC18F65J50 • 8 bit, 32KB flash/4KB RAM, 12 MIPS, 3.3V, 64TQFP • 5 Timers, 2 USART, 2 MSSP, 1 USB, 2PWM, 8 DAC, 7 GPIO • PIC24FJ64GB002 • 16bit, 64KB flash/8k RAM, 16MIPS, 3.3V, 44 QFN/SOIC • 5 Timers, 2 MSSP, 2 UART, 1 USB OTG, 5 PWM, 15 remappable pins • MC9S08JM60 • 8 bit, 60KB flash/4KB RAM, 12 MIPS, 5V, 44-64QFN/QFP • 3 Timers, 1 MSSP, 2 SCI, 1 USB, 2 PWM Team 6: Defender

  8. Coilgun Firing Control • Voltage • Amperage • Heat dissipation, Failure Modes • Price!! • IGBT vs SCR - Control Team 6: Defender

  9. Insulated Gate Bi-Polar Transistor(IGBT) • APT200GN60JDQ4 • 600V, 283/600A , 640W, .25°C/W $42.60 (no sink) • APTGT300SK60D3G • 600V, 400/600A, 940W, .16°C/W, $155.32 (w/sink) • SEMIX 453GAL12E4S • 1200V, 685/1350A, .11°C/W, 215.48 (w/ sink) • STGE200NB60S • 600V, 200/400A, 600W, .21°C/W , 35.28 (no sink) Team 6: Defender

  10. Stepper Motors • Unipolarvs Bipolar, Stacks • Holding Torque • Steps per rotation • Operating voltage Team 6: Defender

  11. Stepper Motor Controllers • Dual motor controller • High current output • Internal PWM generation vs external driving • Interface • Ability to microstep Team 6: Defender

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