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2021/08/26

Onsemi Solar String Inverter Solution

 

The falling cost of solar panels, along with greater regulations for zero-carbon energy, has led to increasing installations of solar power generation throughout the world. This process is happening from utility to commercial to residential scales. The transformation of our energy system will require solutions with the highest levels of efficiency, reliability, and safety. onsemi’s boost and inverter Power Integrated Modules (PIMs) anchor the grid-interface electronics, while our gate drivers, sensing, control, and peripheral power products complete the system.

 

The main components of the system are the PV panels, the DC link capacitors and the inverter module which handles the DC/AC conversion. Often DC-DC boost stages are used between the PV strings and the DC link. These systems elevate the output voltage of the PV string to the DC link operating level and also run the MPPT (Maximum Power Point Tracking) function, that maximizes the power generated by the PV strings in different environmental and sun irradiation conditions. In situations where the PV string can reach the DC link operating voltage level, the DC/DC converter is bypassed (via a low VF diode) in order to maximize efficiency. Three-phase systems are normally designed with a DC link operating at 1100 V or 1500 V.

 

onsemi portfolio comprises a wide variety of module solutions, with a full range of power devices including IGBT Trench, SiC MOSFET and SiC/Hybrid. Our continuous investment in packaging technologies grants the modules leading thermal performance, which improves power density and simplifies design. Our fully integrated value chain, from wafer to end product, ensures the highest quality standards to achieve high performance and reliability systems

 

 

 

 

ON Solar Inverter Solution

 

 

 

 

 

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