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Update Power Hardware #33

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Update Power Hardware #33

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domiko96
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  • Remove Temp Sensor
  • Redo Power Part -> Replace AMS1117 with LM2596 StepDown IC + Peripherals
  • Redo PCB
  • Replace Wrong Screw Terminal
  • Add aditional C10 close to OE of U5

@domiko96
* Remove Temp Sensor
8495be6 
* Redo Power Part -> Replace AMS1117 with LM2596 StepDown IC + Peripherals
* Redo PCB
* Replace Wrong Screw Terminal
* Add aditional C10 close to OE of U5
@domiko96 domiko96 self-assigned this Feb 10, 2022
@domiko96 domiko96 mentioned this pull request Feb 10, 2022
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@domiko96
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domiko96 commented Feb 11, 2022 •
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We can also transition to USB C maybe:
https://de.aliexpress.com/item/32966491026.html?spm=a2g0o.productlist.0.0.ae423b32OcjvmG&algo_pvid=5aedda40-703a-4083-ac46-a1e4cb0a6f6d&algo_exp_id=5aedda40-703a-4083-ac46-a1e4cb0a6f6d-2&pdp_ext_f=%7B%22sku_id%22%3A%2266546029161%22%7D&pdp_pi=-1%3B0.56%3B-1%3B-1%40salePrice%3BCHF%3Bsearch-mainSearch
USB C connector just using usb2.0 pins, should be possible to solder by hand 🥳

@aewatt95
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I checked the following points:

  • Remove Temp Sensor
  • Replace wrong screw terminal
  • Add additional C10 to OE of U5
  • Redo Power Part
  • Pin 2 provides the output current and should have a thicker trace. Pin 4 provides only feedback:
    image
    image
  • Redo PCB
  • The silk screen is not yet adjusted to the changes
  • The microphone board may be a bit to close to the capacitors.
    image
  • Switching between two copper line widths on the 3.3V line?
    image

aewatt95
aewatt95 requested changes Mar 18, 2022
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See main comment in merge request

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