Polly Phase Energy Measurement

High resolution measurement.


B201-BA is an energy measurement module (EMM) for polyphase power monitoring systems. It is designed for real-time monitoring for a variety of typical three-phase configurations in industrial applications. It is available in a 3x4cm size PCB module.

The B201-BA provides up to six analog inputs for interfacing to voltage and current sensors. Scaled voltages from the sensors are fed to the single converter front-end utilizing a high-resolution delta-sigma converter. Supported current sensors include current transformers (CT), Rogowski coils, and resistive shunts.

An embedded 24-bit measurement processor and firmware perform all necessary computations and data formatting for accurate reporting to the host. With integrated flash memory for storing nonvolatile calibration coefficients and device configuration settings, the B201-BA is capable of being a completely autonomous solution.

The B201-BA is designed to interface to the host processor via the UART interface.


Polly Phase Energy Measurement Module


Ovoo Electronics

What We Did

Research and Development, Standards and Specifications, Schematic Capture, Software & Firmware Development, PCB Layout, Parts Purchasing, Prototype Assembly, Prototype Testing, Final Documentation Delivery, Mass Production.

RMS Voltage
Instantaneous Voltage
Fundamental Voltage
Harmonic Voltages
Line Frequency
RMS Current
Peak Current
Instantaneous Current
Fundamental Current
Harmonic Currents
Active Power
Reactive Power
Apparent Power
Fundamental Power
Harmonic Powers
Active Energy
Reactive Energy
Apparent Energy
Power Factor
Limit Alarms