PQ Transformers: Reshaping the New Paradigm of Power Transmission in the Industrial Sector with High Power Density and Stability​

September 22, 2025 · Nanjing — As a core component for power transmission and signal conversion in industrial equipment, the performance of transformers directly affects production efficiency and equipment reliability. In recent years, relying on three core advantages—high power density, low electromagnetic loss, and compact structure—PQ Transformers (PQ-Type Transformers) have seen a steady surge in demand across fields such as industrial automation, new energy equipment, and precision manufacturing. They have become a key enabler for driving the "miniaturization, high efficiency, and energy-saving" upgrading of industrial equipment.

Focus on Core Industrial Scenarios, PQ Transformers Address Multiple Application Pain Points

PQ Series Transformers in the Photovoltaic Industry

With the rise of distributed photovoltaic (PV) power generation, especially the rapid growth of the residential PV market, the demand for micro-inverters has increased significantly. In the circuit topology of micro-inverters, mainstream solutions such as interleaved flyback and full-bridge phase-shifted forward converters are inseparable from PQ Series Transformers. Take the PQ34 high-frequency transformer series developed by Sunlord Electronics as an example: specifically designed for residential PV micro-inverters, this series adopts independently developed wide-frequency, wide-temperature, and low-loss magnetic materials. It significantly improves the overall conversion efficiency of the circuit, enabling a conversion efficiency of over 96.5%.

Empowering the Technological Upgrading of Electric Vehicles

As electric vehicle (EV) technology continues to evolve, requirements for charging speed and efficiency are becoming increasingly stringent. The high-frequency characteristics and high power density advantages of PQ Series Transformers allow them to adapt to the future development trend of high-voltage fast-charging technology for EVs. For instance, in the development of charging systems compatible with 800V high-voltage platforms, PQ Series Transformers can achieve higher-frequency switching operations through optimized design—further improving charging efficiency and shortening charging time. Meanwhile, their compact structural design helps realize the integration and miniaturization of charging systems within the limited space of vehicle interiors, creating favorable conditions for the overall layout and performance enhancement of electric vehicles.