EP#126: Space Engineering

EP#126: Space Engineering

  • Parker
    • MAX6682 breakout board finished and ordered
      • This is for the thermistors
      • GitHub repo for the board files
    • New Jeep, The Grande Wagoneer
      • A/C doesn’t work as expected
      • Found the FSM and Schematic
      • Schematic has four parts that control the A/C Compressor
        • Evaporator thermistor
          • Turns out this is a standard 5K NTC thermistor
        • A/C temperature sensor
        • Compressor Low Pressure Switch
          • Standard part #4773763
        • Climate Control Box
  • Stephen
    • uTracer update
      • Enclosure will be a Hammond Manufacturing 1441-16CWW
      • uTracer PCB will be a daughter board attached to the relay control board
      • Built in USB -> RS-232
  • RFO
    • Spider silk microphone also senses slightest waft of air
      • “most waft-able air movement sensor ever”
      • 400V field, ~0.5V/Pa
      • Research paper is behind a pay wall :/
    • Voltage Regulator heatsinks - when are they required?
      • Maximum power dissipation is determined by the maximum junction temperature rating, the ambient temperature, and the junction-to-ambient thermal resistance.
      • PDmax=( TJmax- TA) / RθJA
      • Junction-to-ambient thermal resistance measured in C/W
      • Maximum Power Enhancement Techniques for SOT-223 Power MOSFETs - AN-1028
      • Constructing Your Power Supply —Layout Considerations - SLUP230
    • Jarrett from slack asks "WTF do you do with 2 million free LEDs?"

Tags: 1441-16CWW, electronics podcast, Grand Wagoneer, ITS OVER 9000 LEDS?!, Jeep, MacroFab, macrofab engineering podcast, MAX6682, MEP, Podcast, Spider Silk microphone, uTracer, Voltage Regualtor Heatsinks, waft-able

Jaksot(448)

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EP#2: Mechanical MultiSIM Monsters

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Stephen continues his work on the Stupid Simple Power Supply (SSPS). He decided to go digital voltage control over analog. Also he has been trying out MultiSIM BLUE by Mouser for circuit simulation. S...

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EP#1: Opamp-timal Power Supply

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Stephen talks about the Stupid Simple Power Supply (SSPS). He designed a OPA541 breakout board for testing. See figure 1.OPA541 Datasheet : Street price of $21.88.Parker brings up that blinky LEDs are...

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