EP#107: Orthogonal for Mutual Conductance

EP#107: Orthogonal for Mutual Conductance

  • Stephen
    • Melted Solid State Relay in electric brewery setup
      • "Finally gave up the smoke"
      • New SSR is rated for 40A
      • Installed a blower fan on the heatsink for extra protection
    • GFCI Breakers
      • Monitors current on both legs of the circuit and makes sure they are within 5mA of each other
      • Parker is going to use a SPA 240V 50A GFCI setup for his brewery setup
  • Parker
    • DAC board update
      • PCM5122 based DAC design
      • Same chip as what is on the HiFiberry DAC+
      • Had to change out the in series resistors from 1K Ohm to 27 Ohm resistors to get the communication to work
      • Digital Logic Analyzer Verse Oscilloscope
    • Soldering Iron ownership history
  • R.F.O.
    • PCM2912A USB microphone chip
      • USB Interface, Mono Microphone Input and Stereo Headphone Output
    • Found in a Datasheet for LAN9514 pg 15
      • When disabling port power, the driver will actively drive a ‘0’
    • The BenHeck show is losing its host
    • Adventures in Autorouting
      • /r/electronics thread
      • It is definitely written by a software person
      • They do not take in account RF noise, stability, power return and ground loops
      • “Imagine today’s standard 4 layer boards routinely being fit into 2 layers without any human effort.”

Tags: electronics podcast, GFCI Breakers, MacroFab, macrofab engineering podcast, MEP, PCM2912A, PCM5122, Podcast

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EP#32: Erroneous Enclosures of Enormous Energy

EP#32: Erroneous Enclosures of Enormous Energy

Podcast NotesStephen brewed a batch of beer over the last weekend with his new electric brewing setup. It is not complete yet but it does work. Stephen converted his brew kettle to include a 4500W hea...

9 Syys 201627min

EP#31: Embedded Brewing with Arduinos

EP#31: Embedded Brewing with Arduinos

Podcast NotesParker designed the Macro Duino! Basically a Arduino clone using Type C USB, a FT230X as the USB UART bridge, and proper power switching with the Ti TPS2113A. See Figure 1. Also supports ...

2 Syys 201633min

EP#30: You won’t believe this ONE WEIRD Engineering trick

EP#30: You won’t believe this ONE WEIRD Engineering trick

Podcast NotesParker is working on streamlining the Selective Solder Process at MacroFab. Writing a script that will take XYRS data and generate the G-Code for the machine.Design work on a calibration ...

26 Elo 201634min

EP#29: Modular Toilet Humor

EP#29: Modular Toilet Humor

Podcast NotesStephen is currently working on DipTrace part libraries and templates for DRC and CAM file generation. Should have an article out next week about it. GitHub repository for DipTrace files ...

19 Elo 201627min

EP#28: Dissolving Energon Cubes

EP#28: Dissolving Energon Cubes

Podcast NotesStephen has been running tests on the Energon Cube for the SSPS. So far everything is working great. Check out Stephen's blog post update:  Super Simple Power Supply "SSPS" Design (Part 3...

12 Elo 201631min

EP#27: If There is a Bug, You Can Fix It

EP#27: If There is a Bug, You Can Fix It

Podcast NotesOur Guest this week is Kwabena Agyeman who runs OpenMV. See Figure 1.The OpenMV project is about creating low-cost, extensible, Python powered, machine vision modules and aims at becoming...

5 Elo 201636min

EP#26: Super Simple Buss Bars of Power

EP#26: Super Simple Buss Bars of Power

Podcast NotesStephen has been working on making the copper buss bars for the SSPS Energon cube. See Figure 1.We calculated that the resistance of the copper buss bars is 0.00458 ohms or 4.58 mohm. Our...

29 Heinä 201631min

EP#25: Lousy Datasheet Buyouts

EP#25: Lousy Datasheet Buyouts

Podcast NotesStephen has completed the SSPS Analog board. See Figure 1. Testing will begin early next week.The Macro Amp that Stephen has been working on is almost done. He just needs to solder the th...

22 Heinä 201631min

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