MEP EP#302: A 1 Dollar Chips Matter

MEP EP#302: A 1 Dollar Chips Matter

MEP EP#302: A 1 Dollar Chips Matter

Announcements

Thanks for everyone that donated and stopped by the live stream! We where able to raise over $5000 for the Texas Children Hospital Network!

Molex 217175-0001

  • Tasty Type-C connector
  • No data pins?
  • Only power and the CC pins for doing the Power Delivery handshake
  • Datasheet

Non FCC switcher?

  • ICL7660CBAZA-T Super Voltage Converters
  • Power Rail Flipper/Inverter
  • Charge pump voltage “flipper” uses only two capacitors
  • At an input voltage of 5V and an unloaded oscillator pin the switching frequency is 10khz
  • Reducing to less than 9khz only takes one capacitor
  • Price
    • Singles: $1.82
    • Bulk: $1

SMT Bench Equipment for Soldering

  • X-tronic 440 died now I need to replace!
  • Soldering Iron
    • Thermaltronics TMT-2000S-SM
    • Tips
      • S75LR018A
      • S75DS045
  • Hot Air
    • Quick 957DW+
  • Microscope
    • AmScope SM series
    • Get a 0.5x Barlow lens
  • Tweezer set
    • Non magnetic stainless steel is what you want
    • ESD?
    • Aven is a good brand
  • Snips/flush cutters
    • Hakko CHP-170 are king

Jaksot(448)

EP#8: Bits That Don’t Quit

EP#8: Bits That Don’t Quit

Podcast NotesStephen and Parker do a live discussion on how the digital and analog side of the Super Simple Power Supply will interface with each other. MultiSim has been a huge part in simulating the...

25 Maalis 201639min

EP#7: The Art of Retention Force

EP#7: The Art of Retention Force

Parker has almost finalized the front panel design for the Super Simple Power Supply. Going to have a "VU" meter for how much power it is pulling.Parker is also still looking for a proper encoder that...

18 Maalis 201624min

EP#6: Mythical Transistors

EP#6: Mythical Transistors

Podcast NotesParker is still working on the Super Simple Power Supply. He is designing the front panel. He is considering using some WP1043 Kingbright LEDs.Super Simple Power Supply will have two deci...

11 Maalis 201625min

EP#5: Tilting Tubes

EP#5: Tilting Tubes

Parker ordered all the parts for the SAIM this week. The v-slot rails and brackets from OpenBuild, iES-1706 servos from Leadshine, and 3D printed parts from Shapeways.MacroFab uses 3D printed parts to...

4 Maalis 201647min

EP#4: Linear Effects of Licensing

EP#4: Linear Effects of Licensing

Audio quality of the podcast leveled up! Stephen and Parker went over to The Pharmacy Recording Studio which is run by Josh Moore. He hooked them up with 2 (!) microphones and a nice an acoustically p...

26 Helmi 201617min

EP#3: Liquid Toroidal Electrons

EP#3: Liquid Toroidal Electrons

Stephen and Parker have been testing the main opamp for the OPA541. Stephen wrote a blog post detailing the opamp tests with simulation and real world testing.GitHub link to the repository for the SSP...

19 Helmi 201622min

EP#2: Mechanical MultiSIM Monsters

EP#2: Mechanical MultiSIM Monsters

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...

10 Helmi 201620min

EP#1: Opamp-timal Power Supply

EP#1: Opamp-timal Power Supply

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...

9 Helmi 201623min

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