12 V to 5 V / 1 A Buck Molecule (TPS54202)

@@ -8,14 +8,16 @@ As far as we can find, this is the first video of an AI designing a circuit boar  Here it builds the same 12 V to 5 V, 1 A TPS54202 buck as the [KiCad build on the main page](https://wiki.adom.inc/john/buck-12v5v-molecule), from one sentence, as a complete board: Claude on [Adom AI Flow](https://wiki.adom.inc/adom/adom-aiflow) inside [Adom Hydrogen](https://wiki.adom.inc/adom/hydrogen), with the Fusion Bridge driving Fusion through direct commands instead of clicks. A routed, poured, analysed board with Gerbers, a BOM and a pick-and-place file came out. -## The video+## The videos  <table> <tr>-<td><a href="https://www.youtube.com/watch?v=pbbIQOoOKb0"><img src="img/video-youtube.jpg" alt="AI Designed This Entire PCB in Fusion 360 for $1.85: watch on YouTube"></a></td>+<td width="50%"><a href="https://www.youtube.com/watch?v=pbbIQOoOKb0"><img src="img/video-youtube.jpg" alt="AI Designed This Entire PCB in Fusion 360 for $1.85: watch on YouTube"></a></td>+<td width="50%"><strong><a href="https://www.youtube.com/watch?v=pbbIQOoOKb0">AI Designed This Entire PCB in Fusion 360 for $1.85</a></strong> (4 min 47 s). This run: the same 12 V to 5 V buck as part 1, built from one prompt as a complete board in Autodesk Fusion 360. Claude on <a href="https://wiki.adom.inc/adom/adom-aiflow">Adom AI Flow</a> pulls the parts from the Adom wiki, and the <a href="https://wiki.adom.inc/adom/fusion-bridge">Fusion Bridge</a> signs in to Fusion, builds the library, draws the schematic and lays out the board. Along the way AI Flow sends Claude back to fix its own placement and heatsink vias, Adom Fields checks the current and heat, and the run ends with Gerbers, a BOM and a pick-and-place file. It took 2 h 42 min and about $1.85 of a Max 20x plan.</td> </tr> <tr>-<td><strong><a href="https://www.youtube.com/watch?v=pbbIQOoOKb0">AI Designed This Entire PCB in Fusion 360 for $1.85</a></strong> (4 min 47 s). The whole build in Fusion 360: one prompt in <a href="https://wiki.adom.inc/adom/hydrogen">Adom Hydrogen</a>, the parts pulled from the Adom wiki, the Fusion Bridge signing in and building the library, the schematic and SPICE, placement and routing with the AI sent back to fix its own mistakes, the current and heat analysis, the silkscreen, and what the run cost.</td>+<td width="50%"><a href="https://www.youtube.com/watch?v=vKUMzy261zs"><img src="docs/img/video-youtube.jpg" alt="AI PCB Design for Engineers: watch on YouTube"></a></td>+<td width="50%"><strong>Part 1: <a href="https://www.youtube.com/watch?v=vKUMzy261zs">AI PCB Design for Engineers</a></strong> (about 4 min). The first build of this board, in KiCad 10, and the precursor to this Fusion 360 run. It covers the prompt in <a href="https://wiki.adom.inc/adom/hydrogen">Adom Hydrogen</a>, the circuit, three SPICE engines in agreement, the live layout, the current and heat analysis and the rework it caused. The same brief built in Altium is planned as the next part. <a href="https://wiki.adom.inc/john/buck-12v5v-molecule">The KiCad build</a>.</td> </tr> </table> @@ -42,6 +44,15 @@ Every part on this board has its own page on the Adom wiki, with its symbol, foo | <a href="https://wiki.adom.inc/adom/machinecontactmedium"><img src="docs/parts/machinecontactmedium.png?v=98d8c6d3" width="64" alt="MachineContactMedium"></a><br>**[MachineContactMedium](https://wiki.adom.inc/adom/machinecontactmedium)**<br>Adom | 6 | J1 to J6 | MachineContactMedium | molecule edge contact | [Adom stock](https://wiki.adom.inc/adom/adom-basic-parts) | | <a href="https://wiki.adom.inc/adom/machinepinmediumshort"><img src="docs/parts/machinepinmediumshort.png?v=33dcf6f3" width="64" alt="MachinePinMediumShort"></a><br>**[MachinePinMediumShort](https://wiki.adom.inc/adom/machinepinmediumshort)**<br>Adom | 4 | MP1 to MP4 | MachinePinMediumShort | corner machine pin (GND) | [Adom stock](https://wiki.adom.inc/adom/adom-basic-parts) | +## Where the current and heat go++<table>+<tr>+<td width="50%"><a href="https://www.youtube.com/watch?v=GtEOlbPonTs"><img src="docs/img/fields-video-youtube.jpg" alt="Where the Current and Heat Go: watch on YouTube"></a></td>+<td width="50%"><strong><a href="https://www.youtube.com/watch?v=GtEOlbPonTs">Where the Current and Heat Go</a></strong> (8 min 44 s). The KiCad build of this board solved in <a href="https://wiki.adom.inc/adom/adom-fields">Adom Fields</a>, in eleven narrated views: current density, heat flow, temperature, the current and voltage flowing, energy, how fast a switch-on travels, the energy cycle, charge, the magnetic field and EMC. Fields is the same solver that checked the Fusion board's copper in this run. <a href="https://wiki.adom.inc/john/buck-12v5v-molecule/files/docs/thermal-current.md">The numbers</a>.</td>+</tr>+</table>+ ## At a glance  | | |