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Green Three-Phase Smart Energy Meter
Renesas’ green smart meters reference design helps to improve awareness of energy consumption while using very little power
Renesas’ winning combination reference design for green three-phase smart energy meters is an efficient way to monitor energy consumption. This reference design helps with the growing demand for power and energy that local utilities and consumers require. Green smart meters help to improve awareness of this energy consumption while using very little power themselves.
This solution provides the components for a low-cost, smart, and secure green meter. This tamper-proof and connected system allows users to view information about their power consumption via remote data acquisition and transfer.
Features
- Magnetic tamper-proof to protect data
- High voltage operation
- 1200 V inbuilt switch provides flexibility to make a robust and low-cost system
- 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
- Supercapacitor for a last gasp power source
- Remote data acquisition and transfer
- RTC backup and high accuracy oscillator
- 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
Applications
- Three-phase energy meters
ISL91107 Buck-Boost Regulator
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
 |  | ISL91107IIAZ-T7A | IC REG BUCK BOOST ADJ 2A 15WLCSP | 1929 - Immediate | $16.96 | View Details |
RAA214401 Linear Regulator
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
|  | RAA2144014GP3#JA0 | IC REG LINEAR 3.3V 150MA SOT23-3 | 5987 - Immediate | $8.97 | View Details |
RL78/I1B Microcontroller
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
|  | R5F10MMGDFB#30 | IC MCU 16BIT 128KB FLASH 80LFQFP | 575 - Immediate | $37.95 | View Details |
PS2514L-1 Photocoupler
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
|  | PS2514L-1Y-A | OPTOISOLATOR 5KV 1CH DARL 4-SMD | 4373 - Immediate | $10.37 | View Details |
ISL8485 PWM Controller
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
|  | ISL8485CBZ | IC TRANSCEIVER HALF 1/1 8SOIC | 1850 - Immediate | $18.36 | View Details |
Published: 2021-09-28
Hong Kong, China