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| MCP39F511单相电源实时监测解决方案 |
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| 文章来源： 更新时间：2015/5/7 9:18:00 |
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Microchip公司的MCP39F511是高度集成单相电源实时监测集成电路,用于实时测量AC/DC电源,分布电源单元,消费类电子和工业应用的输入电源.器件包括双路delta-sigma ADC,16位计算引擎,EEPROM和灵活的2线接口,温漂10 ppm/℃的基准电压,动态范围4000:1时的精度优于0.1%.本文介绍了MCP39F511主要特性,框图, 单相两线应用电路图以及MCP39F511电源监测演示板主要特性,电路图,材料清单和PCB设计图.
The MCP39F511 is a highly integrated, complete single-phase power-monitoring IC designed for real-time measurement of input power for AC/DC power supplies, power distribution units, consumer and industrial applications. It includes dual-channel delta-sigma ADCs, a 16-bit calculation engine, EEPROM and a flexible 2-wire interface. An integrated low-drift voltage reference with 10 ppm/℃ in addition to 94.5 dB of SINAD performance on each measurement channel allows for better than 0.1% accurate designs across a 4000:1 dynamic range.
MCP39F511主要特性:
• Power Monitoring Accuracy Capable of 0.1% Error Across 4000:1 Dynamic Range
• Built-In Calculations on Fast 16-Bit Processing Core
- Active, Reactive, Apparent Power
- True RMS Current, RMS Voltage
- Line Frequency, Power Factor
• 64-bit Wide Import and Export Active Energy Accumulation Registers
• 64-bit Four Quadrant Reactive Energy Accumulation Registers
• Signed Active and Reactive Power Outputs
• Dedicated Zero Crossing Detection (ZCD) Pin Output with Less than 100 μS Latency
• Dedicated PWM Output Pin with Programmable Frequency and Duty Cycle
• Automatic Event Pin Control through Fast Voltage Surge Detection Less than 5ms Delay
• 24x Faster than Previous Version 115.2k Baud-Rate Two-Wire Serial Protocol using a 2-Wire Universal Asynchronous Receiver/Transmitter (UART)
• Eight Independent Registers for Minimum and Maximum Output Quantity Tracking
• Fast Calibration Routines and Simplified Command Protocol
• 512 Bytes User-Accessible EEPROM through Page Read/Write Commands
• Low-Drift Internal Voltage Reference, 10 ppm/℃ Typical
• 28-lead 5x5 QFN Package
• Extended Temperature Range -40℃ to +125℃
MCP39F511应用:
• Power Monitoring for Home Automation
• Industrial Lighting Power Monitoring
• Real-Time Measurement of Input Power for AC/DC Supplies
• Intelligent Power Distribution Units
图1. MCP39F511功能框图
图2. MCP39F511单相两线应用电路图
MCP39F511电源监测演示板
The MCP39F511 Power Monitor Demonstration Board is a fully functional single-phase power and energy monitoring system. The system calculates and displays active power, reactive power, RMS current, RMS voltage, active energy (both import and export), and four quadrant reactive energy.
It connects easily through USB to the “MCP39F511 Power Monitor Utility Software” that offers automated control to allow you to easily experiment with all system configuration settings such as PWM output frequencies, zero crossing detection options, and event configurations, among many others.
The “MCP39F511 Power Monitor Utility” software can also be used to and be used to create custom calibration setups. For most accuracy requirements, only a single-point calibration is needed. The energy meter software offers an automated calibration process that can be used to quickly calibrate energy meters and allow you to experiment with different calibration procedures.
MCP39F511电源监测演示板主要特性:
Displays Active, Reactive, Apparent Power, RMS Current, RMS Voltage, Line Frequency, Import/Export Active Energy and 4 Quadrant Reactive Energy
Event notifications including Over Current, Over Power, Voltage Sag and Voltage Surge
Device configuration through PC software, including Event Notifications, Calibration, EEPROM read/writes, PWM Control and Energy Accumulation Start/Reset
Direct connect to 90V-240VAC operation
15A maximum recommended load
图3. MCP39F511电源监测演示板外形图
MCP39F511电源监测演示板(ADM00667)包括:
• MCP39F511 Power Monitor Demonstration Board (ADM00667)
• AC Line Cable
• IEC to Female AC Load Cable
• Mini-USB Cable
• Important Information Sheet
图4. MCP39F511电源监测演示板(ADM00667)电路图(1)
图5. MCP39F511电源监测演示板(ADM00667)电路图(2)
图6. MCP39F511电源监测演示板(ADM00667)PCB元件布局图(顶层)
图7. MCP39F511电源监测演示板(ADM00667)PCB设计图(顶层铜+丝印)
图8. MCP39F511电源监测演示板(ADM00667)PCB设计图(顶层铜)
图9. MCP39F511电源监测演示板(ADM00667)PCB设计图(底层铜)
图10. MCP39F511电源监测演示板(ADM00667)PCB设计图(底层铜+丝印)
图11. MCP39F511电源监测演示板(ADM00667)PCB设计图(底层丝印)
MCP39F511电源监测演示板(ADM00667)材料清单:
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