pcb: add extra USB PD switch MOSFET to avoid back current from capacitors

Also, replace both with physically smaller and cheaper components. Now that the engraving circuit is current limited, there is less need for very low Rds(on) MOSFETS.
2025-06-25 21:27:03 +02:00 · 2025-06-25 21:27:03 +02:00 · 4ff227b844
commit 4ff227b844
parent 7688144475
4 changed files with 4080 additions and 2624 deletions
--- a/pcb/mainboard.kicad_pcb
+++ b/pcb/mainboard.kicad_pcb
--- a/pcb/mainboard.kicad_prl
+++ b/pcb/mainboard.kicad_prl
@ -1,6 +1,6 @@
 {
  "board": {
-    "active_layer": 0,
+    "active_layer": 2,
    "active_layer_preset": "All Layers",
    "auto_track_width": true,
    "hidden_netclasses": [],
--- a/pcb/mainboard.kicad_pro
+++ b/pcb/mainboard.kicad_pro
@ -48,7 +48,7 @@
        "silk_text_thickness": 0.1,
        "silk_text_upright": false,
        "zones": {
-          "min_clearance": 0.15
+          "min_clearance": 0.2
        }
      },
      "diff_pair_dimensions": [
--- a/pcb/mainboard.kicad_sch
+++ b/pcb/mainboard.kicad_sch