Low Side: High Bandwidth Current Amp and Fault Detection for Solar Inverters Reference Design

1 января 2018

This refrence design provides a solution for an accurate shunt-based current measurement on the low side with an integrated fault-detection feature. It consists of a current sense amplifier which supports current sensing for a high bandwidth. The fault detection feature allows detection of undercurrent and overcurrent faults. The design provides a performance comparison between shunt-based current sensing and current sensing using a hall sensor.

Особенности

Shunt based low side current sensing system with negative common mode support Compact system for current sensing High bandwidth current sensing of up to 400kHz Bidirectional current sensing support Integrated undercurrent and overcurrent detection with less than 1µs response time Less than 0.3% error in measurement for complete DC current range (-3A to 15A)