Broadcom: Optically Isolated Sigma Delta Technology for High Current and Precise Voltage Sensing

Online, On Demand

Live presentation date: November 10, 2021

Overview

As modern factory automation, including servo motors, industrial robots, and CNC machines, trends toward higher precision, power, speed, multi-axis, and multi-direction, the requirement for accurate sensing of motor phase current has become ever more demanding. 

Being the leader in optical isolation technology, Broadcom provides a variety of energy, cost and space efficient solutions for the market, including high-linearity optically isolated amplifier devices designed for current and voltage sensing applications, for such motor drive systems including renewable energy inverters. 

Using advanced Sigma-Delta Modulator technology, the current sensor and voltage sensor product family provides the required accuracy for phase current and bus voltage measurements.

Especially the new 50 mV input range sigma-delta current sensors enable high current measurement by minimizing power dissipation through lower shunt losses. 2V input range voltage sensors with high input impedance improve measurement accuracy and minimize the power dissipation. 

Key Takeaways​

• Learn about Broadcom’s new sigma-delta current and voltage sensing optocouplers
• Discover the features and benefits of 50 mV input range current sensors that enable high current measurement by minimizing power dissipation through lower shunt losses
• Understand the benefits of the 2V input range voltage sensors with high input impedance to minimize power dissipation and to improve data measurement accuracy

​

Speaker

Arndt Schwaiger, Field Application Engineer, Industrial Products, Broadcom Inc.

Register Now