Renesas has introduced a groundbreaking reference design for green three-phase smart energy meters, catering to the rising need for enhanced energy monitoring solutions. This innovative design not only meets the demands of local utilities but also empowers consumers to actively engage in energy conservation efforts.
The key feature of this reference design is its ability to significantly improve awareness of energy consumption while consuming very little power itself. By leveraging Renesas' expertise in smart metering technology, this solution offers a cost-effective, smart, and secure green metering system.
One of the standout aspects of this design is its tamper-proof and connected nature, ensuring the integrity and reliability of the data collected. Users can conveniently access real-time information about their power consumption through remote data acquisition and transfer mechanisms, enabling them to make informed decisions regarding their energy usage.
Overall, Renesas' smart meter reference design sets a new standard in energy efficiency and user engagement, paving the way for a more sustainable future with intelligent energy management solutions.
Magnetic tamper-proof to protect data
High voltage operation
1200 V inbuilt switch provides flexibility to make a robust and low-cost system
Supercapacitor for a last gasp power source
Remote data acquisition and transfer
RTC backup and high accuracy oscillator
ISL91107 buck-boost regulator
High-efficiency buck-boost regulator with 3.6 A switches
RAA214401 linear regulator (LDO)
150 mA wide input range ultra-low quiescent current linear regulator
RL78/I1B microcontroller
16-bit low power MCU with 24-bit delta-sigma A/D converter
PS2514L-1 photocoupler
High-speed switching/high isolation voltage photocoupler
iW1821 PWM controller
1200 V AccuSwitch™ AC/DC digital primary-side converter for three-phase industrial applications up to 12 W
ISL8485 RS-485/RS-422 serial interface
5 V, half-duplex, 5 Mbps, RS-485/RS-422 transceiver
Three-phase energy meters
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