70V AC Converter

Created 2 project docs
Board Bring-Up Plan — USB PDLC Film Controller
Equipment: current-limited 5 V bench supply, USB-C 5 V source or power bank, multimeter, oscilloscope with HV-rated probe, SAMD SWD programm...
View doc
Firmware Starter — ATSAMD10C13A-SS
MCU: Microchip ATSAMD10C13A-SS, U2 Suggested framework: Arduino-compatible SAMD core or Microchip/Atmel Studio for production.
View doc

flux

Resumed and completed the PCB layout flow: resized to a 60 × 90 mm 4-layer board, re-placed by USB/logic/boost/HV-output zones, replaced the problematic UCC27282 footprint with a corrected local 10-WSON part, and auto-routed the board. I also created Board Bring-Up Plan and Firmware Starter.
Open items:
  • One remaining Airwires check references an auto-generated stitch-via/fill artifact (34289c48); auto-route reports no normal pins left to route, so this needs manual review before manufacturing export.
  • HV boost compensation/output voltage still requires bench validation with the actual PDLC film load.
  • The corrected local UCC27282 part should be reviewed before production release.
Suggested next steps:
  1. Visually inspect the routed PCB around R5/Q5 and the copper fill artifact.
  2. Run a final manufacturing/DFM review before export.
  3. Export Gerbers/BOM/pick-and-place for prototype quote.
  4. Build the first firmware from the new starter file and begin low-voltage bring-up.
Review, DFM and export
Fix airwire artifact
Run manufacturing review
Export prototype files
Explain the artifact
Check HV safety
  • Generic Inductor
    Generic Inductor
    A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
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USB PDLC Film Controller

USB PDLC Film Controller thumbnail
Compact USB-C 5 V smart film sample controller that generates a selectable 60–80 VAC bipolar output for up to about 1 ft² of PDLC film, with automatic 1 s clear / 1 s frosted cycling and safety-focused high-voltage design.

Properties

Consumer Electronics

USB-C 5V sink, MCU-controlled 75Hz PDLC H-bridge, selectable 60-80VAC RMS output, default 70VAC 1s on/off cycling.

5

V

USB

Status LED

Pricing & Availability

Distributor

Qty 1

Arrow

$6.84–$13.63

Digi-Key

$2.58

HQonline

$0.48

LCSC

$11.00–$11.19

Mouser

$18.06–$18.31

TME

$3.45

Verical

$8.94–$14.35

Controls