Solar power solutions, Solar inverter, PV inverter

High-Efficiency Solutions for Photovoltaic (PV) Inverters

onsemi delivers advanced solar power solutions leveraging Silicon Carbide (SiC) & IGBT technologies to enable high-efficiency inverter designs, reduce power losses, and support energy storage integration.

Overview

The falling cost of solar panels and increased regulations for zero-carbon energy have led to increasing solar power generation installations worldwide. This process is happening from utility to commercial to residential scales. The transformation of our renewable 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 using our gate drivers, sensing, control, and peripheral power products complete the system.

製品

Silicon Carbide (SiC) Modules

SiC Modules contain SiC MOSFETs and SiC diodes. The boost modules are used in the DC-DC stages of solar inverters. These modules use SiC MOSFETs and SiC diodes with voltage ratings of 1200V.

A Silicon Carbide (SiC) Module is a power module that operates with Silicon Carbide semiconductors for its switch. The purpose of a SiC power module is the transformation of electrical power through switches to improve system efficiency.

The primary function of SiC Modules is to transform electrical power. Silicon Carbide offers an advantage over silicon because, with less resistance to move away from the source (due to increased efficiency), SiC devices can operate at a higher switching frequency. A SiC based system is also more compact and lightweight than a silicon solution, allowing for smaller designs. Therefore, SiC devices are the ideal solution for situations where you want to increase efficiency and improve your thermal management.

IGBT Modules
IGBT Modules are used in traction and in the DC-AC stages of solar inverters, energy storage systems, uninterruptible power supplies and motor drives.
Si/SiC Hybrid Modules

Si/SiC Hybrid Modules contain IGBTs, silicon diodes and SiC diodes. They are used in the DC-AC stages of solar inverters, energy storage systems and uninterruptible power supplies.

Hybrid Si/SiC (Silicon/Silicon Carbide) modules are integrated IGBT power modules with high power density. They have lower switching losses than nonhybrid modules, and they can also work at higher temperatures than other types of semiconductors.

Si/SiC hybrid modules have several uses including being used in high-power applications that need low losses. They may also be used in higher temperature environments than comparable Si modules. For systems requiring high-frequency switching, Si/SiC hybrid modules provide better efficiency.

Silicon Carbide (SiC) MOSFETs

Our SiC MOSFETs are designed to be fast and rugged and include system benefits from high efficiency to reduced system size and cost. MOSFETs are metal–oxide–semiconductor field-effect transistors with insulated gates. These silicon carbide MOSFETs have a higher blocking voltage and higher thermal conductivity than silicon MOSFETs, despite having similar design elements. SiC power devices also have a lower state resistance and 10 times the breakdown strength of regular silicon. In general, Systems with SiC MOSFETs have better performance and increased efficiency when compared to MOSFETs made with silicon material.

There are many advantages to choosing SiC MOSFETs over silicon MOSFETs, such as higher switching frequencies. High-temperature development is also not a concern when using SiC MOSFET modules because these devices can operate efficiently even in high heat. Additionally, with SiC MOSFETs, you benefit from a more compact product size because all components (inductors, filters, etc.) are smaller.

IGBTs
Insulated Gate Bipolar Transistors (IGBTs) that offer maximum reliability in high performance power conversion applications.
Gate Drivers
GaN, IGBT, FET, MOSFET, H-Bridge MOSFET, and SiC MOSFET inverting and non-inverting drivers ideal for switching applications.
Silicon Carbide (SiC) Cascode JFETs
Our high-performance SiC cascode JFETs deliver best-in-class switching speed, lower switching losses, and higher efficiency. They provide high switching frequency and deliver ultra-low on-resistance (RDS (on)) starting at just 5mohm, utilizing less than half the die size of any other technology. Available in both standard thru-hole (including Kelvin) and surface mount packages, they offer excellent cost-effectiveness. These devices utilize a unique cascode configuration, integrating a high-performance SiC fast JFET with a cascode-optimized Si-MOSFET. This innovative approach enables standard gate drive (0-12V) for SiC devices. Given their smaller die size and compatibility with existing driver solutions, the SiC cascode JFETs offer optimized system performance and cost structure.
Silicon Carbide (SiC) Combo JFETs
SiC combo-FETs represent a revolutionary advancement, combining our low RDS(on) SiC JFET with a Si MOSFET in a single, compact package. Specifically designed for low-frequency protection applications, such as Power Supply Units (PSUs), downstream high-voltage DC-DC converters for AI Data Center Racks, Solid-State Circuit Breakers (SSCBs), EV battery disconnects, and surge protection, these combo-FETs allow users to access the JFET gate for optimized design. The integration of the Si MOSFET ensures a normally-off solution, achieving a size reduction exceeding 25% compared to discrete implementations.
Current Sense Amplifiers
Current sensing requires accurate measurements and onsemi’s current sense amplifiers offer high degree of precision current sensing along with the advantages of wide input common mode range, bidirectional current sensing and high/low side current sensing.
Operational Amplifiers (Op Amps)
onsemi wide portfolio of operational amplifiers (op amps) features high performance devices which include low power, low noise, precision, power and also general purpose op amps. These are designed to specifically meet a variety of applications like signal conditioning, automotive, battery powered, medical and current sensing.

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Documents

Tutorial
Pairing Gate Drivers to EliteSiC Tutorial
Application Notes
The Impact of Topology on Solar Inverter Efficiency: A Study Using onsemi SiC Cascodes and Diodes
White Papers
Optimizing Residential Solar Energy Systems for Efficiency, Reliability, and Cost
White Papers
Common IGBT Topologies Used in Energy Infrastructure Applications
Collateral Brochure
シリコンカーバイドの課題を克服し、アプリケーションを成功に導く
White Papers
Topologies for Commercial String Solar Inverter
Application Notes
Performance Comparison of 1200 V SiC MOSFET and Si IGBT Used in Power Integrated Module for 1100 V Solar Boost Stage
Application Notes
Technical Advantages of onsemi's New Elite Power Simulator and Self-Service PLECS Model Generator
Application Notes
Mounting Guideline for F5 Baseplate Power Module
Application Notes
Mounting Guideline for F1/F2 Full Plastic Case Modules with Press-fit Pins

Evaluation Boards/Kits

Evaluation Board
EVBUM2878G-EVB
Evaluation Board for 1200V M3S 4-PACK EliteSiC MOSFET Module
Evaluation Board
EVBUM2880G-EVB
Evaluation Board for 1200V M3S 2-PACK EliteSiC MOSFET Module
Evaluation Board
EVBUM2883G-EVB
Evaluation Board for 1200V M3S TNPC F2 TNPC EliteSiC Module
Evaluation Board
NCP-NCV51561D2PAK7LGEVB
NCP/NCV51561 EVB OPN
Evaluation Board
SECO-NCD57000-GEVB
Application daughter-card for NCD57000 IGBT gate driver
Evaluation Board
NCD57252GEVB
NCD57252GEVB - Eval Board

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