FRED rectifier bridge technology is leading a highly efficient transformation in the new energy sector.

In the fields of new energy and industrial variable-frequency drives, the performance of power electronic devices directly impacts system efficiency and reliability. Leveraging its independently developed FRED rectifier bridge core technology and a mature glass-passivation process, Guangdong Jiaxun Electronics Co., Ltd. has launched a series of high‑performance rectification solutions, providing efficient, low‑loss, long‑life components for applications such as photovoltaic inverters and variable‑frequency speed‑control systems.

In the fields of new energy and industrial variable-frequency drives, the performance of power electronic devices directly impacts system efficiency and reliability. Guangdong Jiaxun Electronics Co., Ltd., leveraging its independently developed… FRED Rectifier Bridge Core Technology Combining mature glass-passivation technology, we have launched a series of high‑performance rectification solutions, providing efficient, low‑loss, long‑life devices for applications such as photovoltaic inverters and variable‑frequency drive systems.

 

I. Core Technological Advantages of the FRED Rectifier Bridge

 

• Hybrid integration architecture breaks through traditional bottlenecks.

Jiaxun Electronics integrates FRED chips and silicon-controlled rectifiers (SCRs) within a PPS housing, reinforced with 40% glass fiber. The assembly withstands temperatures up to 150°C and offers an insulation voltage rating of ≥2.5 kV, ensuring stable operation of the rectifier bridge even under harsh environmental conditions.

 

• Outstanding high-frequency performance and significant energy efficiency improvements.

The FRED chip boasts a reverse recovery time as short as 10–50 ns, reducing switching losses by more than 40% compared to conventional diodes, making it well suited for kHz‑level high‑frequency applications. Coupled with the HBS810 series’ high current capability—8.0 A continuous output and 200 A surge withstand—it can significantly enhance system response speed and energy efficiency.

 

• Advanced manufacturing processes, with a relentless pursuit of quality.

Using vacuum gas‑shielded welding technology, the weld layers achieve a void‑free rate exceeding 99%. Compared with conventional processes, this reduces the production cycle by 8% and cuts costs by 6%, while extending device lifetime by more than 20-fold.

 

II. Typical Application Case: Performance Upgrade on the DC Bus Side of Photovoltaic Inverters

 

Challenge: Conventional photovoltaic inverters employ standard rectifier modules on the DC bus side, which suffer from slow MPPT tracking response, elevated operating temperatures, and suboptimal efficiency—issues that undermine power generation revenue.

 

Jiaxun Solutions:

 

• FRED rectifier bridge + glass-passivation technology:

The HBS810 series FRED rectifier bridge is selected, leveraging its low forward voltage drop (1.0 V at 8.0 A) and high thermal dissipation capability (thermal resistance of 11 °C/W), along with its ultra-fast reverse recovery characteristics, to boost the MPPT’s dynamic response speed by 15% and ensure that the photovoltaic array consistently operates at its maximum power point.

 

• High frequency, low loss, breakthrough efficiency:

At a switching frequency of 100 kHz, the rectification efficiency reaches 98.5%, while the temperature rise is reduced by 30% compared with conventional solutions, significantly extending the inverter’s service life.

 

• High-reliability design:

The PPS housing employs a vacuum‑gas welding process, offering excellent resistance to damp heat and salt spray, and is well suited to the harsh conditions of outdoor photovoltaic power plants.

 

III. Extended Applications: Industrial Variable-Frequency Drives and Wind Power Sectors

 

• Variable-frequency speed control system:

In VVVF inverters, it replaces mechanical contactors and, when paired with the HBS810 series, achieves 98% rectification efficiency, reduces EMI noise by 15 dB, and extends equipment lifespan by a factor of 20.

• Wind power converter:

By optimizing the DC-side waveform with an FRED rectifier bridge, the overall efficiency of 2 MW‑class wind turbines is boosted to exceed 98.5%, thereby reducing wind curtailment losses.

 

IV. Jiaxun Electronics: Driving a Green Future Through Technological Innovation

 

Guangdong Jiaxun Electronics is deeply committed to the R&D of power electronic devices. Its FRED rectifier bridge series has obtained UL‑94 V‑0 certification and is widely deployed in high‑reliability applications such as military and aerospace sectors. Looking ahead, we will continue to refine our high‑frequency, high‑power‑density solutions, delivering more efficient and durable products to customers worldwide.