Bloqueo Fuente 12V
Worked for 9 mins 58 sec
Me quedé bloqueado porque la cuenta ya no tiene ACUs disponibles, así que no puedo seguir ejecutando cambios ni crear el archivo de decisión.
Hecho hasta ahora
- Inspeccioné el proyecto: había 11 testpoints Keystone 5018 agregados.
- Detecté que esos 5018 causaban 11 errores DRC de cobre solapado por un pad mecánico duplicado.
- Reemplacé los 11 testpoints por
Generic Testpointde un solo pad y los reconecté a sus redes originales: GND, 3V3, 5V_SYS, USB D±, ESP_EN, ESP_BOOT, ADC_AC_VOLTAGE, ADC_CURRENT, RELAY_SET_GPIO y RELAY_RESET_GPIO. - Confirmé que IRM-45-12 y RACM40-12SK/OF/PCB-T no están como partes exactas en la librería, y no agregué un módulo 12 V/3 A falso.
Bloqueos / riesgos abiertos
- El proyecto todavía contiene cambios parciales inseguros del intento anterior:
U2 = IRM-30-12de 12 V/2.5 A,F2 = 2 A,J7,U6,C15–C17. Eso no cumple el requisito de salida auxiliar 12 V/3 A. - No pude revertir ni limpiar ese bloque parcial por falta de ACUs.
- No pude crear/actualizar el archivo
power-12v-production-decision. - Quedan DRC de airwires/routing; los errores de overlap de los testpoints quedaron abordados, pero falta verificación final completa.
Siguiente cuando haya ACUs
- Revertir/eliminar el bloque parcial 12 V subdimensionado (
IRM-30-12,F2 2A,J7,U6,C15–C17) o reemplazarlo solo con un módulo real 40–45 W con footprint confiable. - Restaurar la fuente original 5 V si corresponde o rediseñar la arquitectura con IRM-45-12/RACM40 real.
- Crear
power-12v-production-decisiondocumentando que ZMPT101B se mantiene y que 12 V/3 A queda bloqueado hasta disponer de parte/footprint certificado. - Ejecutar ERC/DRC final y corregir airwires/placement pendientes.
Documentar bloqueo
Buscar alternativas 12V
Revisar DRC/ERC
Eliminar bloque parcial
Refine this doc
Ask about this doc
Safety Analysis — ESP32-S3 IoT Relay Controller
Status
Draft safety review for schematic stage. This is not a certification report.
Applicable Standards to Review
- UL/IEC 62368-1 for ICT/audio-video equipment safety.
- IEC 61010 or IEC 60730 may apply depending on final use.
- IEC 60664 creepage/clearance calculation for mains-to-SELV barrier.
- FCC/CE/RED for ESP32-S3 wireless integration.
Hazard Summary
Table
| Hazard | Source | Schematic Mitigation | Open Validation |
|---|---|---|---|
| Electric shock | AC_L_IN, AC_L_FUSED, relay contacts | RAC03 isolated supply, isolated ACS732/ZMPT101B sensing, no direct mains ADC divider | Layout creepage/clearance, hipot, enclosure |
| Fire/overcurrent | 16 A load path | Fuse holder F1, MOV RV1, relay rated 16 A resistive, high-current terminal blocks | Fuse value, trace width, 2 oz copper, thermal test |
| USB becoming live | Programming port | USB/ESP32 remain on isolated SELV side | Verify no copper/test point crosses isolation |
| Relay contact arcing | Inductive/capacitive loads | Optional X2 RC snubber and MOV path | Snubber values per final load |
| Overtemperature | Relay, terminals, PCB copper | TMP102 board temp monitoring, firmware trip | Place sensor near heat path; validate response time |
| Current sensor overload | Load transients | ACS732 ±40 A margin and FAULT output | Fault threshold calibration and firmware response |
Isolation Boundaries
Table
| Boundary | Primary Side | Secondary Side | Component |
|---|---|---|---|
| AC power to logic | AC_L/AC_N | 5V_SYS/GND | U2 RAC03-05SK reinforced isolated AC/DC |
| Load current sensing | AC load path | ACS analog pins | U5 ACS732 isolated Hall sensor |
| AC voltage sensing | AC_L/AC_N | ADC_AC_VOLTAGE | T1 ZMPT101B voltage transformer |
| Relay coil/contact | AC load path | 5V relay coil/driver | K1 relay coil-contact isolation |
Safety-Critical Components
Table
| Ref | Part | Safety Role |
|---|---|---|
| U2 | RAC03-05SK | Reinforced isolated AC/DC supply |
| F1 | 178.7017.0001 | Mains fuse holder |
| RV1 | B72210S0271K101 | L-N surge clamp |
| K1 | G5RL-K1A-E-DC5 | 16 A load isolation/switching |
| U5 | ACS732xLATR-40AB | Isolated current measurement |
| T1 | ZMPT101B | Isolated voltage measurement |
| C_SNUB1 | X2-104K-275VAC | Safety-rated snubber capacitor |
Open Items Before Manufacturing
- Compute final creepage/clearance from actual layout and target standard.
- Decide final fuse current/time curve for load type.
- Validate 16 A copper geometry, terminal temperature and relay temperature in enclosure.
- Calibrate ACS/ZMPT readings and set firmware trip thresholds.
- Verify antenna integration and enclosure RF performance.
Status
Applicable Standards to Review
Hazard Summary
Isolation Boundaries
Safety-Critical Components
Open Items Before Manufacturing
