Description
1. Overview
The DIGITAL POWER CPCI-AC-6U-500 (900-7002-99) is a 6U CompactPCI industrial AC input power supply module compliant with PICMG 2.11 standard. With a rated power of 500W, wide AC input range, active PFC, multi-channel regulated output, hot-swap and redundant parallel functions, it is designed for rugged CPCI industrial control chassis and embedded measurement & control systems.
Featuring high efficiency, low ripple, wide-temperature stability and strong anti-interference performance, the module supports N+1 redundant power supply and automatic current sharing. It undergoes strict industrial aging and EMC tests, ensuring 24/7 uninterrupted operation. Widely applied in military measurement, aerospace, power energy and high-end automation systems, it serves as an ideal replacement and upgrade part for legacy CPCI power units.
2. Technical Features
2.1 Standard 6U CPCI Architecture & Full Compatibility
Comply with PICMG 2.11 CompactPCI power supply specification. Standard 6U Eurocard structure supports hot-swap replacement, enabling non-stop system maintenance and greatly reducing equipment downtime. Fully compatible with mainstream 6U CPCI chassis and backplanes.
2.2 Wide-Range AC Input & PFC Correction
Support 90～264VAC universal wide voltage input, adaptive to global industrial mains without manual gear switching. Built-in active PFC circuit improves power factor and suppresses harmonic interference, meeting industrial energy-saving and EMC standards.
2.3 Multi-Channel High-Precision Regulated Output
Provide four independent stable outputs (+5V/60A, +3.3V/60A, +12V/14A, -12V/4A) to fully meet the power demand of CPCI SBC, I/O modules and expansion cards. Ultra-low ripple and high voltage stability eliminate system operation anomalies caused by voltage fluctuation.
2.4 Redundant Parallel & Current Sharing
Support multi-module redundant parallel connection and automatic load current sharing. Single module failure will automatically exit without system power interruption. Equipped with remote on/off and remote sense functions to offset long-line voltage drop and ensure terminal power supply accuracy.
2.5 Full-Range Hardware Protection
Integrate over-voltage, under-voltage, over-current, short-circuit, over-temperature, surge and reverse input protection. The module will automatically lock and protect under abnormal conditions to avoid power supply burnout and backend hardware damage, ensuring system power supply safety.
2.6 High Efficiency & Wide-Temperature Operation
Adopt high-frequency switching topology with typical efficiency over 77%, low power consumption and low heat generation. Support ultra-wide temperature operation with high-temperature derating protection and low-temperature stable startup, adapting to long-term uninterrupted industrial working conditions.
2.7 Rugged Industrial Design
Adopt industrial three-proof PCB and reinforced component screening technology, with moisture-proof and anti-corrosion coating. Vibration-resistant and loose-proof structure adapts to harsh environments such as closed cabinets, vehicle-mounted and field equipment with low failure rate and long service life.
3. Detailed Specifications
3.1 Basic Hardware Parameters
- Model: CPCI-AC-6U-500
- Part No.: 900-7002-99
- Manufacturer: DIGITAL POWER
- Type: 6U CompactPCI Industrial AC Input Power Supply Module
- Standard: PICMG 2.11 CPCI Power Interface Specification
- Rated Power: 500W
- Input Mode: Wide-Range AC Mains Input
- Core Functions: CPCI System Power Supply, Redundant Current Sharing, Hot-Swap, Remote Control, Full Protection
- Compatible Devices: 6U CPCI Chassis, CPCI SBC, Industrial I/O Modules, Embedded Measurement Platform
- Applications: Military Measurement, Aerospace, Power Plant Control, Embedded Automation, CPCI System Maintenance & Upgrade
3.2 Input Electrical Parameters
- Input Voltage Range: 90VAC～264VAC Universal Adaptive
- Input Frequency: 47Hz～63Hz Industrial Universal Frequency
- Power Factor: ≥0.95 with Active PFC Correction
- Input Characteristics: Automatic Mains Adaptation, Surge & Pulse Interference Resistance
3.3 Output Electrical Parameters
- Output Channels: 4 Independent Regulated Channels
- Output Ratings: +5V/60A, +3.3V/60A, +12V/14A, -12V/4A
- Voltage Accuracy: Linear Regulation Rate ≤±0.5% Under Full Load
- Load Characteristics: Fast Transient Response, No Voltage Spike
- Ripple Noise: Ultra-Low Ripple for Precision Industrial Equipment
- Minimum Load: 4A Minimum Load Required for +5V Channel
3.4 Protection & Expansion Functions
- Protection Mechanism: OVP, UVP, OCP, SCP, OTP, Surge & Reverse Input Protection
- Fault Response: Automatic Lock Protection, Auto/Manual Reset After Fault Removal
- Redundant Function: Multi-Module Parallel, Automatic Current Sharing, N+1 Redundancy
- Expansion Function: Hot-Swap, Remote On/Off, Remote Sense, Line Drop Compensation
- Operating Efficiency: Typical Full-Load Efficiency ≥77%
3.5 Mechanical & Installation Parameters
- Structure: Standard 6U CompactPCI Eurocard Form Factor
- Installation: CPCI Standard Chassis Rail Embedded Hot-Swap Installation
- Craft: Industrial Three-Proof PCB, Reinforced Components, High-Temperature Aging Calibration
- Structural Features: High Integration, Vibration & Loosening Resistance, No Vulnerable Parts
3.6 Environmental Parameters
- Operating Temperature: -5℃ ～ +70℃ (Automatic High-Temperature Derating)
- Storage Temperature: -20℃ ～ +85℃
- Operating Humidity: 5%～95%RH (Non-Condensing, Non-Corrosive)
- Environmental Resistance: Vibration-Proof, Impact-Proof, Humidity-Proof, EMI Resistant, Dust-Proof
- Working Conditions: Closed Industrial Cabinet, Vehicle-Mounted, Field & Military Harsh Environment
- Execution Standards: PICMG 2.11, Industrial EMC Specification, Military-Grade Environmental Certification
4. Operating Principle
The CPCI-AC-6U-500 power module operates based on wide-range AC rectification PFC correction, high-frequency inverter voltage regulation, multi-channel isolated output, intelligent fault protection and redundant current sharing scheduling. After AC power input, the filter and active PFC circuit optimize grid waveform and convert AC to stable DC bus voltage, adapting to wide mains fluctuation.
The bus voltage undergoes high-frequency inversion, isolated transformation and precision rectification to output four-channel regulated DC power, matching the power demand of CPCI SBC and I/O modules. In parallel operation, the built-in current sharing circuit automatically distributes load current. Faulty modules offline automatically while remaining modules undertake load seamlessly to ensure uninterrupted power supply.
The module monitors input voltage, output current, temperature and load status in real time, triggering lock protection under abnormal conditions. Combined with hot-swap and remote management functions, it realizes non-stop maintenance and long-term high-reliability power supply for CPCI embedded control systems.
