Reference Design for 1200V Isolated I2C High Side Current Sensing for Solar Combiner Boxes

1 января 2018

This reference design is an isolated high-side current sensing design for a smart combiner box in a grounded or ungrounded system. The current sensing topology enables multichannel, sub ±1% error, isolated current sensing for high-voltage systems up to 1200-VDC, limited by the DC/DC transformer.

Особенности

Isolated high-side current sensing of multiple photovoltaic strings Capable of monitoring current within 1% full scale accuracy Support 1200V isolated current sensing via I2C in smart combiner boxes Option to connect additional INA260 devices to I2C bus