Bipolar transistors

Diodes

ESD protection, TVS, filtering and signal conditioning

MOSFETs

SiC power devices

GaN FETs

IGBTs

Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

Smart flow meter (gas / water / fluid)

Smart flow meters provide accurate monitoring and management of gas, water and industrial fluids while enabling utility digitalization and remote data collection. Powered by long-life batteries and designed for maintenance-free operation for over 10 years, these systems require highly efficient power management, low-power communications and optimized measurement architectures. Often designed to use advanced ultrasonic sensing technology, smart flow meters deliver precise flow measurements across a wide range of operating conditions and communicate data through wireless or wired networks, helping utilities improve billing accuracy, detect leaks, optimize resource utilization and support predictive maintenance initiatives.

  • Block diagram
  • Design considerations
  • Design resources
  • Product listing
  • Support

Block diagram

Input powerprotection Power management Sensorinterface Signalprocessing Commsinterface HMIRGB LEDs / Colorscreen Battarymanagement Security / Secureelement MCU aaa-046227 Wired / Wireless CAN Highlighted components are Nexperia focus products.

Select a component

To view more information about the Nexperia components used in this application, please select a component above or click on a component (highlighted in blue) in the block diagram.

Design considerations

  • Ultra-low-power operation and battery lifetime management are critical to sustaining maintenance-free operation lifteimes, requiring highly efficient power conversion, battery monitoring, intelligent power distribution and support for energy harvesting in select applications.
  • Accurate flow measurement is essential for billing and resource management, leveraging ultrasonic sensing technologies and low-noise analog signal conditioning to maintain measurement accuracy across varying flow rates and environmental conditions.
  • Reliable communications and connectivity enable secure transfer of consumption data through low-power wireless networks to nearby gateways or data concentrators, while supporting wired interfaces such as M-Bus for industrial and commercial installations.
  • Data security and meter integrity require hardware-based protection of measurement data, device credentials and cryptographic keys, using secure elements and robust authentication mechanisms to prevent tampering, cloning, unauthorized access and fraudulent billing activity.
  • Robust operation in harsh environments is necessary to ensure long-term reliability despite temperature extremes, humidity, vibration, water exposure and other environmental stresses encountered in field deployments.

Product listing