Design High-Efficiency Solar Optimizers with GaN FETs
Enhancing Photovoltaic System Performance with Compact, Reliable, Cost-Effective GaN Technology
As the demand for renewable energy solutions grows, the need for efficient and cost-effective photovoltaic (PV) systems is more critical than ever. Efficient Power Conversion Corporation (EPC), a global leader in enhancement-mode gallium nitride (eGaN®) power devices, has introduced the EPC9178, a cutting-edge reference design for solar PV optimizers. This new solution addresses the key challenges of energy efficiency, reliability, and cost in solar energy systems by leveraging the advantages of gallium nitride (GaN) technology.
Introducing the EPC9178
The EPC9178 features a back-to-back buck-boost converter topology, designed to maximize energy harvesting from solar panels—even under challenging conditions such as shading or uneven sunlight. This innovative design bridges the gap between micro-inverters and string inverters, making it an ideal solution for improving the efficiency and compatibility of solar PV systems.
Key Features of the EPC9178
The EPC9178 combines advanced GaN technology with a compact and efficient design, offering numerous benefits for solar PV systems:
- Compact Design
Operating at a high frequency of 450 kHz, the EPC9178 minimizes the size of passive components, resulting in a lightweight, space-saving solution. - High Efficiency
With a peak efficiency of up to 98%, the EPC9178 significantly reduces power losses, enhancing energy conversion and thermal management. - Advanced GaN Technology
Powered by 100 V-rated EPC2306 eGaN® FETs, the EPC9178 provides low on-resistance (3.8 mΩ) and reduced switching losses compared to traditional silicon MOSFETs, ensuring higher performance and reliability. - Simplified Control
The inclusion of Texas Instruments’ LM5177 controller streamlines the design process and reduces component count, making it easier for engineers to implement. - Versatile Output Settings
With an input voltage range of 30 V to 60 V and selectable output voltages of 30 V, 45 V, and 60 V, the EPC9178 offers flexibility for a variety of applications.
“The EPC9178 delivers a compact, high-performance, and reliable design that enables cost-effective solar energy systems,” said Alex Lidow, CEO of EPC.
Applications and Benefits
The EPC9178’s innovative design enables solar panels to operate at maximum efficiency by optimizing energy output under varying conditions. This reduces the need for costly and bulky passive components, making solar PV systems more affordable and accessible. By adopting GaN technology, the EPC9178 improves energy efficiency and reliability while addressing the industry’s growing focus on sustainability.
Pricing and Availability
- EPC9178 Evaluation Board: $480.00
- EPC2306 GaN FETs: $1.87 each (in 3,000-unit reels)
Both the EPC9178 evaluation board and the EPC2306 GaN FETs are available for immediate delivery through Digi-Key. Visit EPC’s Digi-Key Supplier Center for more details and purchasing options.
Why GaN for Solar Energy Systems?
Gallium nitride technology is revolutionizing the renewable energy industry by offering superior efficiency, reduced system size, and lower overall costs compared to traditional silicon-based solutions. With the launch of the EPC9178, EPC continues to pave the way for innovative, high-performance solar energy designs that contribute to a more sustainable future.
For more information about the EPC9178 and how it can elevate your photovoltaic system performance, visit EPC’s product page.
