FOS‑WDP‑S1 — Power & Thermal Management Subsystem
MBP‑015a — Master Blueprint Package
Fiber‑Optic Smart Wall Display Panel
Master Specifications
| Parameter | Specification |
|---|---|
| System Name | FOS‑WDP‑S1 |
| Dimensions | 650 × 350 × 80 mm |
| Weight | 8.5 kg |
| Power Consumption | 350 W (max) |
| Cooling Method | Forced Air, 80 mm PWM Fans |
| Certifications | CE, RoHS, FCC, BSMI |
Power Architecture Overview
AC Input
- 250V AC mains
- EMI / EMT filter
- Active PFC rectifier
Primary PSU
- High‑efficiency switching PSU
- Power‑Good signal to MCU
Distribution Board
- 12V main rail
- 5V auxiliary rail
- 3.3V logic rail
- 3.3V standby rail
Power Flow Diagram
- 250V AC Input → EMI/EMT Filter → Active PFC → Primary PSU → DC Rail Distribution → System Loads
Power Distribution & Rails
| Rail | Voltage | Current | Power | Loads |
|---|---|---|---|---|
| 12V MAIN | 12V DC | 25A | 300W | LED modules, audio amplifiers, fans |
| 5V AUX | 5V DC | 5A | 25W | USB, logic, Wi‑Fi, sensors |
| 3.3V LOGIC | 3.3V DC | 2A | 6.6W | MCU, memory, logic circuits |
| 3.3V STANDBY | 3.3V DC | 0.2A | 0.66W | Standby MCU, wake logic |
Power Protection & Safety Circuits
- Fuse (primary AC protection)
- MOV (surge suppression)
- Inrush limiter (NTC thermistor)
- OVP (over‑voltage protection)
- OCP (over‑current protection)
- SCP (short‑circuit protection)
- PSU Power‑Good → MCU for system‑level protection
Thermal Management Overview
Heat Sources
- LED modules
- Audio amplifiers
- PSU module
- Mainboard
Airflow Path
- Side intake
- Bottom intake
- Top exhaust
Cooling System
- Forced air cooling
- 80 mm PWM‑controlled fans
- Intelligent fan speed control
Heat Flow & Dissipation Path
Thermal Components
- LED modules → thermal pads → aluminum back plate
- Mainboard → thermal pads → chassis
- PSU → heat spreader → airflow exhaust
- Bottom chassis ventilation
Heat Flow Diagram
- LED → Pads → Back Plate → Exhaust
- Mainboard → Pads → Chassis → Exhaust
- PSU → Spreader → Exhaust
Smart Thermal Control Logic
| Zone | Temperature Range | Action |
|---|---|---|
| Normal | 0–60°C | Standard fan speed |
| Warning | 60–75°C | Increase fan speed, reduce CPU power |
| Critical | >75°C | System alert, throttle brightness, limit audio power |
Sensors Monitored
- LED module temperature
- Mainboard temperature
- PSU temperature
- Ambient temperature
Fan & Airflow System
Fan Type
- 80 mm PWM‑controlled fans
- Variable speed based on thermal load
Airflow Layout
- Side Intake
- Bottom Intake
- Top Exhaust
Power State Modes
| Mode | Power Consumption | Fan Speed | Display | Audio |
|---|---|---|---|---|
| ON (Normal) | Full power | Adaptive | On | On |
| ECO Mode | Reduced | Medium | Dimmed | Limited |
| Standby | Minimal | Off | Off | Off |
| Shutdown | Zero | Off | Off | Off |
Thermal & Power Monitoring
- Temperature sensors T1–T4
- Fan speed
- Power consumption
- System logs
Alerts
- Thermal warning
- Critical temperature
- Fan failure
- PSU fault
System Interfaces (Power & Control)
- AC power input
- PSU Power‑Good signal
- Fan control header
- Temperature sensor headers
- MCU control interface
Design Notes
- Ensure unobstructed airflow
- Maintain sensor placement accuracy
- Use high‑quality thermal pads
- Avoid dust accumulation
- Ensure proper EMI shielding
- Maintain PSU isolation boundaries
Document Information
| Field | Value |
|---|---|
| File Name | FOSWDPS1MBP015 |
| Title | Power & Thermal Management R1.0 |
| Date | 14 May 2023 |
| Revision | 1.0 |
| Drawn By | System Architect |
| Approved By | Chief Engineer |
| Sheet | 1 of 1 |
Blueprint Access & Licensing
MBP‑015a — Power & Thermal Management Subsystem is part of the complete multi‑volume engineering blueprint package for the FOS‑WDP‑S1 Fiber‑Optic Smart Wall Display Panel.
Contact Blueprints Market for licensing, integration support or enterprise‑level deployment.
© Paul Smith — Alpha & Omega Limited — BlueprintsMarket.com — Conceptual Engineering Preview — Not Approved for Manufacturing
© Paul Smith — Alpha & Omega Limited — BlueprintsMarket.com — Conceptual Engineering Preview — Not Approved for Manufacturing