BLDC Motor Sürücü Tasarımı
Worked for 6 mins 36 sec
IPM güç katını ekledim: DC bus, U/V/W fazları, bootstrap kapasitörleri, VCC decoupling, SD/OD fault ve CIN donanımsal aşırı akım yolu bağlandı. Şimdi bilgisayar tarafını ayrı izole domain olarak SWD/UART arayüzüyle ekliyorum.
Worked for 25 mins 48 sec
IPM güç katını ve izole PC debug arayüzünü ekledim: U4 STGIB10CH60TS-X IPM, 15V_AUX gate beslemesi, bootstrap/VCC/DC-link kapasitörleri, SD/OD fault, CIN donanımsal aşırı akım, CP2102N USB-UART ve izole SWD/UART hatları bağlandı. Detaylar IPM and Isolated Debug Notes dosyasına kaydedildi.
Açık kalanlar:
- Tam 650 V IPM kütüphanede yoktu; 600 V / 15 A ST IPM kullanıldı, surge/regenerasyon marjı üretim öncesi doğrulanmalı.
- R19 = 150 mΩ / 2 W şönt yaklaşık 3.4 A donanımsal trip verir; motor kalkış akımı öğrenilince yeniden hesaplanmalı.
- DRC airwire hataları yerleşim/routing yapılmadığı için bekleniyor.
ERC sonucu:
- Floating/power/single-pin/no-connect ERC kontrolleri temiz; kalan kritik uyarı yok.
Sonraki adımlar:
- PWM giriş RC/seri dirençlerini ekleyelim.
- DC bus frenleme/surge clamp stratejisini ekleyelim.
- PCB için hot/safe izolasyon bariyeri ve creepage/clearance kurallarını tanımlayalım.
Add protections and constraints
Add PWM input filters
Add bus protection
Set isolation rules
Check shunt sizing
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Safety Analysis — HV BLDC Dryer Driver
Status
Draft / Architecture Review Required.
Applicable Standards Candidates
- IEC/UL 60335-1: household appliance safety.
- IEC/UL 60335-2-11: tumble dryer particular requirements, if applicable.
- IEC/UL 60730: automatic electrical controls for household appliances.
- IEC 61800-5-1: adjustable speed drive safety.
- CISPR 14-1/14-2 and IEC 61000 series: appliance EMC.
Hazard Summary
Table
| Hazard | Source | Current Mitigation | Required Next Mitigation |
|---|---|---|---|
| Electric shock | 220 VAC and 310–325 VDC bus | Fuse, MOV, isolated AC/DC module | Define isolation barrier, creepage/clearance, enclosure, safe debug method |
| Stored energy | C1 100 µF / 450 V | R1/R2 660 kΩ bleeder | Verify discharge time, resistor voltage/power ratings, HV warning/test point |
| Fire/surge | MOV/fuse/inrush network | F1, RT1, RV1 | Fuse-MOV thermal coordination, agency ratings, hot-restart inrush test |
| Motor runaway/stall | Firmware/power stage fault | MCU PWM nets reserved | Hardware gate-disable, overcurrent, watchdog, fault latch |
| Overvoltage/regeneration | Motor deceleration | DCBUS_VSENSE reserved | Hardware OVP and braking/deceleration strategy |
| EMI | Mains rectifier + inverter | None yet | EMI filter, snubbers, layout partitioning, motor cable strategy |
Isolation Analysis
Table
| Boundary | Primary Side | Secondary Side | Isolation Type | Status |
|---|---|---|---|---|
| Mains to control supply | J1/AC_L/AC_N | PS1 12V_AUX/CTRL_GND | PS1 certified isolation required | Part selected, certification/clearance not yet verified |
| HV inverter to MCU | BUS/MOTOR phases | STM32 PWM/BEMF/current inputs | TBD: isolated gate/feedback or hazardous-live control | Blocking architecture decision |
| Debug/user access | MCU pins | PC/user/test equipment | Isolation required if MCU not SELV | Not yet added |
Safety-Critical Components
Table
| Designator | Part | Function | Rating/Notes |
|---|---|---|---|
| J1 | XY301V-A-5.0-2P | Mains input terminal | 15 A / 300 V search result |
| F1 | 39212000440 | 2 A slow-blow fuse | 250 VAC; breaking capacity/approval must be checked |
| RT1 | B57237S0479M000 | NTC inrush limiter | 4.7 ohm, 5.1 A search result |
| RV1 | B72210S0271K101 | 275 VAC MOV | Surge protection; fuse/thermal coordination required |
| BR1 | KBP206G-G | 600 V bridge rectifier | Thermal/surge margin must be verified |
| C1 | Generic 100 µF 450 V | HV bus capacitor | Ripple/lifetime/spacing not yet verified |
| PS1 | RAC03-12SK | Isolated 12 V supply | Output power may be insufficient for final gate drive |
Open Items
- Select final 650 V IPM or 600/650 V gate driver + MOSFETs.
- Define whether MCU/control ground is SELV isolated or hazardous-live.
- Add hardware overcurrent, OVP, UVLO, overtemperature, gate enable default-off.
- Add EMI filter and final creepage/clearance/layout rules before PCB.
- Do not connect non-isolated USB/SWD/oscilloscope to live control circuitry.
Status
Applicable Standards Candidates
Hazard Summary
Isolation Analysis
Safety-Critical Components
Open Items
