Electricity Meter
Overview
Designs
Addresses accuracy and cost needs by providing a high-performance analog front end combined with an embedded programmable gain amplifier.
Increases the accuracy of energy measurement by providing a high-performance analog front end combined with an embedded programmable gain amplifier.
Used for measurement and registration of active and reactive energy in three-phase networks for direct connection.
Specifications
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Electricity Meter
MCU
- KM3x : 50–75 MHz Precision Metrology MCUs with Segment LCDs based on Arm® Cortex®-M0+
Sensors
- MMA8491Q : ±8g, Low g, Digital NXP® Accelerometer
- FXOS8700CQ : Digital Motion Sensor - 3D Accelerometer (±2g/±4g/±8g) + 3D Magnetometer
Security (EdgeLock Discrete)
- EdgeLock® SE050: Plug & Trust Secure Element Family – Enhanced IoT security with maximum flexibility
Zigbee
- JN5169 : ZigBee and IEEE802.15.4 Wireless Microcontroller with 512 kB Flash, 32 kB RAM
NFC
- PN5180 : Full NFC Forum-Compliant Frontend IC
Power Management
- TEA1721AT : HV Start-Up Flyback Controller with Integrated MOSFET for 5 W Applications, F~burst = 430 Hz
Wireless Platform
RTC
- PCF2131 : Nano-Power Highly Accurate RTC with Integrated Quartz Crystal
Electricity Meter
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How NFC can be used with the latest wireless MCUs for secure connections to face the challenges in embedded designs