Multi-String Inverters

At industrial sites using solar power, multistring inverters connect several string inverters to a central inverter. As this block diagram shows, Littelfuse provides end-to-end electronic solutions for multistring inverters. We make MOSFET dc–dc converters, IGBT inverters, and Schottky diode rectifiers. We also offer specialty power fuses and surge protective devices for circuit protection.

Block Diagram

Technology:
Product Series:SPF, SPFI, SPXV, SPXI
Features:Meets UL and IEC standards; 1000 VDC, 130 A ratings available; max interrupt rating 50 kA
Benefits:Prevents power generation losses due to nuisance tripping from changes in temperature

Technology:
Product Series:
Features:Fast switching time; ultra-low RDS(on)
Benefits:High power density; easy to mount; space-saving

Technology:
Product Series:
Features:Rugged design with thin wafer technology; low gate charge; low EMI and competitive low VCE(SAT)
Benefits:Allows flow power consumption and fast response

Technology:
Product Series:
Features:Extremely current-limiting; small footprint;200 kA interrupting rating
Benefits:Reduces damage to equipment caused by heating and magnetic effects of short circuit currents;

Technology:
Product Series:
Features:extremely low gate charge and output capacitance; ultra low on-resistance; fast switching time
Benefits:Optimized for high-frequency; high power density; easy to mount; space-saving

Technology:
Product Series:SP3130, MLA, MHS
Features:Low capacitance of 1.0 pF per I/O
Benefits:Smaller form-factor and ease of design

Technology:
Product Series:SP712
Features:Low capacitance of 2.5 pF; Low leakage current of 0.1A; small form factor
Benefits:Minimizes signal distortion, reduces voltage overshoot, and provides a simplified PCB design