Single-Phase Energy Meter Reference Design with Independent Metrology Engine and Tamper Detection
Description
This single-chip electric meter solution implements a single-phase e-meter utilizing the MSP430FE427A SoC and TPS77033 LDO regulator. It utilizes the CPU-independent ESP430 Metrology Engine to perform all of the required e-meter calculations with no impact on the main MCU core. This allows the developer to add other functions into the SoC, reducing overall e-meter BOM cost. With this tool developers can quickly determine that the FE427A e-meter SoC fits the requirements for their low-cost smart e-meter. In addition, this EVM has tamper detection capabilities which assist the engineer’s development of methods to prevent theft of electricity from utilities.
Features
- Single-phase electricity meter design meets the accuracy requirements for ANSI C12.20 and IEC-62053 Class 0.5 meters.
- The ESP430 independently calculates active and reactive power and energy, RMS current and voltage, power factor and line frequency.
- Built-in 128-segment display
- Powered from line voltage from 110V-240V
- Tamper detection algorithms implemented in the ESP430 with user-configurable threshold detection levels.
| Part Number | Name | Companion Part | |
|---|---|---|---|
| MSP430FE427A | MSP430FE427A | Buy Datasheet |
| Title | Updated | Type | Size (KB) |
|---|---|---|---|
| Implementing An Electronic Watt-Hour Meter With MSP430FE42x(A)/FE42x2 (Rev. C) | 24 Apr 2009 | Multiple Files |
| Download |
|---|
| Download the bill of materials for TIDM-SINGLEPHASEMETER-FE427A | Download |
Schematic
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Download the schematic for TIDM-SINGLEPHASEMETER-FE427ADesign File
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Download the design file for TIDM-SINGLEPHASEMETER-FE427ATest Data
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Download the test file for TIDM-SINGLEPHASEMETER-FE427A| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| Single Phase Energy Meter w/ CPU-Indep. Metrology & Tamper Detect. Schematic | 24 Jan 2014 | 166 | ||
| Single Phase Energy Meter w/ CPU-Indep. Metrology & Tamper Detect. (BOM) | 24 Jan 2014 | ZIP | 41 | |
| Single Phase Energy Meter w/ CPU-Indep. Metrology & Tamper Detect. Design Files | 24 Jan 2014 | ZIP | 3192 |