Solar Inverter Solutions

High-efficiency solar inverter solutions using Wolfspeed SiC power devices for maximum energy harvest and power density. Featuring Cree LED components for status indication and monitoring systems.

Our Solar Inverter Technology Approach

At LiTong Group, we specialize in developing high-efficiency solar inverter solutions that maximize energy harvest while reducing system size and cost. Our expertise in Wolfspeed SiC technology enables us to create inverters that operate at higher switching frequencies, resulting in smaller magnetics, higher power density, and improved overall efficiency. Combined with Cree LED components for system monitoring and status indication, we deliver complete solutions for solar power conversion applications.

Key Benefits of SiC-Based Solar Inverters

Higher Efficiency

SiC devices enable 99%+ efficiency in power conversion, maximizing energy harvest from solar panels.

Compact Design

Higher switching frequencies enabled by SiC allow for smaller magnetics and higher power density.

Higher Reliability

Superior thermal properties of SiC allow operation in harsh environments with better long-term reliability.

Inverter Types & Applications

String Inverters

Optimized for residential and commercial installations, typically ranging from 3kW to 15kW capacity.

  • Power range: 3kW to 15kW
  • Single MPPT or dual MPPT options
  • Compact design with high efficiency
  • Integrated monitoring and safety features

Central Inverters

Designed for utility-scale installations, typically ranging from 500kW to 2.5MW capacity.

  • Power range: 500kW to 2.5MW
  • High efficiency at unity power factor
  • Scalable architecture
  • Transformer isolation for safety

Recommended Power Components

Wolfspeed SiC MOSFETs

For high-efficiency power conversion in solar inverter applications, providing superior switching performance.

  • Low switching losses for improved efficiency
  • Higher switching frequencies for smaller magnetics
  • Higher temperature operation capability
  • Zero reverse recovery losses in body diode

Wolfspeed SiC Schottky Diodes

For PFC circuits and auxiliary power supplies in inverter systems, providing zero recovery losses.

  • Zero reverse recovery losses
  • Temperature independent switching
  • Higher surge current capability
  • Enhanced reliability in harsh environments

System Monitoring & Status Indication

For comprehensive system monitoring and status indication, we recommend Cree LED components that provide reliable and efficient visual feedback:

Cree Status Indicator LEDs

High-brightness, long-life LEDs for status indication in solar inverter systems, available in multiple colors and package types.

  • High brightness with excellent visibility
  • Long operational life reducing maintenance
  • Multiple color options for different statuses
  • Wide viewing angle for easy identification
Solar Inverter Solution with Cree LED and Wolfspeed SiC Components

Solar inverter solution using Wolfspeed SiC power devices and Cree LEDs for monitoring and status indication

Typical System Specifications

Power Rating 3kW - 2.5MW
Peak Efficiency 98.5% - 99.0%
MPPT Efficiency 99.9%
Power Density 50 - 150 W/L
Operating Temperature -40°C to +85°C
Grid Compliance IEC 61000-3-12, IEEE 1547
Safety Protection DC/AC isolation, RCD protection

Design Resources for Solar Inverters

Solar Inverter Design Guide

Comprehensive guide to solar inverter design using SiC power devices for maximum efficiency and power density.

SiC Gate Drive Design

Best practices for designing gate drive circuits for SiC MOSFETs in solar inverter applications.

Thermal Management Guide

Guidelines for effective thermal management in high-power solar inverter systems.

Solar Inverter Case Studies

Commercial Rooftop Installation

Implementation of SiC-based inverters in a 500kW rooftop solar installation, achieving 98.7% efficiency and 50% size reduction.

Power Rating: 500kW

Efficiency: 98.7%

Size Reduction: 50%

Annual Energy: 720 MWh

Utility-Scale Solar Farm

Large-scale deployment of central inverters using SiC technology for a 50MW solar installation, improving ROI by 12%.

Power Rating: 50MW

Efficiency: 99.0%

Cost Reduction: 15%

Reliability: 99.5%

Frequently Asked Questions

Why use SiC components in solar inverters?

SiC components provide several advantages in solar inverter applications: higher switching frequencies allow for smaller magnetics and higher power density, lower switching losses improve efficiency especially at high voltages, and higher temperature operation capability allows for simpler thermal management. The zero reverse recovery losses in SiC diodes eliminate losses associated with conventional silicon diodes.

What are the key design considerations for SiC-based inverters?

Key design considerations include gate drive design with appropriate voltage levels (+15V to +18V for SiC MOSFETs), high-speed gate drivers to take advantage of fast switching, optimized PCB layout to minimize parasitic inductance, and thermal management considering the higher power density. EMI/EMC design is also critical due to higher switching speeds.

How do SiC inverters compare to traditional silicon designs?

SiC-based inverters typically achieve 0.5-1% higher efficiency than silicon designs, 30-50% smaller size due to higher frequency operation, and lower system cost despite higher component prices due to reduced magnetics and thermal management requirements. They also offer improved performance in harsh environmental conditions.

Design Your Solar Inverter Solution

Our expert team is ready to assist with your solar inverter application, from initial design to production.

Contact Our FAEs