Microchip's new MCP3909 energy-measurement IC combines low power consumption with an SPI interface and active power pulse output. As a part of the MCP3909 3-Phase Energy Meter Reference Design, the IC enables designers to rapidly develop new meter designs.
The MCP3909, in 24-pin SSOP package, features two 16-bit delta-sigma ADCs, data access via its SPI interface, and an active power pulse output. This simultaneous data output makes the IC adaptable to a variety of meter requirements. Its very low (0,1% typical) measurement error over a 1000:1 dynamic range is ideal for meter applications requiring high accuracy, while a low supply current of only 4 mA makes it suitable for many single- and three-phase energy meter designs.
The MCP3909 reference design includes three MCP3909 ICs, and separate PIC18F2520 and PIC18F4550 microcontrollers, in a modular design. The PIC18F2520 performs all power calculations in the reference design, while the PIC18F4550 provides a USB interface to desktop software. The software package that comes with the reference design provides the ability to read active and apparent power, as well as RMS current and RMS voltage enables, and also enables meter calibration.
Driving power, defining performance Future Electronics
Power Electronics / Power Management
Vishay’s portfolio of inductors, current sense resistors, and MOSFETs provides a comprehensive solution for intelligent power management.
Read more...Converter power modules for 48 V networks Altron Arrow
Power Electronics / Power Management
The economic and quality-of-life benefits of electrification is driving the adoption of HV to 48 V DC-DC conversion across many markets with 48 V power modules becoming more common.
Read more...Memory for asset tracking Altron Arrow
DSP, Micros & Memory
The Page EEPROM, ST’s latest memory, has been designed for efficient datalogging and fast firmware upload/download in battery-operated devices.
Read more...Engineered for high-reliability applications Future Electronics
DSP, Micros & Memory
The MCX E series of Arm Cortex-M4F and Arm Cortex-M7 microcontrollers from NXP are engineered for demanding industrial and IoT environments.
Read more...Online sensor technology hub
Analogue, Mixed Signal, LSI
Mouser’s sensor content hub offers an extensive collection of articles, blogs, eBooks, and product information from its technical experts and leading manufacturing partners.
Read more...Microchip and AVIVA Links collaboration Altron Arrow
News
Microchip and AVIVA Links have achieved groundbreaking ASA-ML interoperability, accelerating the shift to open standards for automotive connectivity.
Read more...Expanded STM32WL3x line for IoT sensors Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The STM32WL31x and STM32WL30x are more tailored versions of the STM32WL33x for designers who wish to focus on specific features, while lowering their bill of materials.
Read more...Processor offers competitive solution for advanced HMIs Future Electronics
DSP, Micros & Memory
The new RZ/A3M microprocessor from Renesas features 128 Mbytes of fast DDR3L DRAM memory for system cost reduction, and supports 1280 x 800 px video resolution at a rate of 30 frames/s.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version