High Power 3000W 5000W 8000W Low Profile Planar Transformer For Renewable Energy
The PQ50 Series Planar Transformer is a high-capacity magnetic component specifically designed for heavy-duty power conversion systems ranging from 2kW to over 6kW. By combining the optimized geometry of the PQ (Power Quality) core with advanced multi-layer PCB or copper busbar winding technology, the PQ50 stands as a premier solution for high-frequency DC-DC converters and On-Board Chargers (OBC). It is engineered to replace traditional wire-wound transformers in environments where extreme efficiency, low profile, and superior thermal management are the primary design drivers.
| Parameter | Typical Value / Spec |
|---|---|
| Core Type | PQ50 (Planar Ferrite Core) |
| Winding Structure | Multi-layer PCB / Heavy Copper Busbar |
| Mounting Type | Direct PCB Mount / Chassis Solder |
| Dimensions | Approx. 50.0mm x 50.0mm x 22.0mm (Customizable) |
| Power Capability | 2.0kW - 6.0kW+ (Extreme Power Density) |
| Operating Frequency | 100KHz - 500KHz |
| Efficiency | 99.3% - 99.6% (Typical) |
| Hi-Pot (Isolation) | 2.5KV - 4.5KV AC / 1min |
| Leakage Inductance | < 0.1% - 0.5% (Ultra-low) |
| Inter-winding Capacitance | Minimal (Optimized for SiC/GaN) |
| Core Material | PC44 / PC95 / PC97 Mn-Zn Ferrite |
| Ae (Effective Area) | 328.0 mm² |
| Ve (Effective Volume) | 23800 mm³ |
| Insulation Class | Class F (155°C) / Class H (180°C) |
| Operating Temp | -40°C to +125°C (Incl. Temp Rise) |
| Compliance | RoHS, REACH, IATF16949 (Automotive Ready) |
| Cooling Requirement | Cold Plate / Liquid Cooling / Forced Air |
- Optimized PQ50 Geometry: The PQ core design is mathematically optimized to provide the best possible ratio of core volume to surface area, ensuring a massive Effective Cross-Sectional Area (Ae≈328 mm²). This allows for high energy throughput with minimal core losses.
- Planar Winding Architecture: Utilizes multi-layer PCB traces or heavy-gauge copper plates, ensuring a low-profile height (typically under 25mm) while maintaining exceptionally high current-carrying capacity.
- High-Frequency Capability: Optimized for switching frequencies between 100kHz and 500kHz, making it a perfect match for high-speed Silicon Carbide (SiC) and Gallium Nitride (GaN) power stages.
- Safety & Isolation: Features reinforced insulation systems capable of withstanding isolation voltages up to 4kV AC, ensuring compliance with global safety standards for industrial and automotive applications.
- Electric Vehicles (EV): The primary choice for high-power On-Board Chargers (OBC) and high-voltage DC-DC converters in commercial EVs and heavy-duty electric transport.
- Renewable Energy Systems: Used in high-capacity Solar Inverters and bidirectional energy storage systems (ESS) for grid-scale power management.
- Data Center Infrastructure: Powers high-wattage Server Power Shelves and UPS systems requiring extreme reliability and 80 PLUS Titanium efficiency levels.
- Industrial High-Power Units: Ideal for plasma cutting machines, high-frequency induction heaters, and industrial laser power supplies.
- Extreme Power Density: Delivers up to 6000W+ in a footprint that is 40% smaller than traditional wire-wound PQ50 units, enabling ultra-compact power module designs.
- Superior Thermal Dissipation: The flat, wide surface area of the PQ50 core facilitates rapid heat transfer. When mounted to a liquid-cooled cold plate or high-efficiency heatsink, it maintains an exceptionally low thermal resistance (Rth).
- Unrivaled Parameter Consistency: Because the windings are etched or stamped via automated processes, every PQ50 unit produced has identical electrical parameters (Lk, Cp, resistance). This eliminates the performance variance often found in manual wire-winding.
- Reduced AC Copper Losses: The flat conductor geometry effectively mitigates the Skin Effect and Proximity Effect at high frequencies, ensuring that the entire conductor cross-section carries current efficiently, unlike round-wire alternatives.
Chipsen Electronics Technology Co., Ltd., established in 2000, is a specialized manufacturer of high frequency transformer, low frequency transformer, toroidal inductor, SMD power inductor, super high current inductor, choke coil and switch. Chipsen has earned a strong reputation in domestic and international markets including North & South America, Europe and Southeast Asia.
As an ISO9001, ISO14001 & IATF16949 certified company, we maintain a professional management team committed to producing environmentally friendly and qualified products. Our products are certified by UL Class B/Class F/Class H, CQC and RoHS, and we hold 21 patents. These achievements stem from our strong R&D team, providing various solutions for temperature reduction, noise cancellation, and coupled radiation conductivity.
Vision: To Be Global Transformer Brand Supplier
Mission: Create Values for Customers and Society, Grow with Customers and Staff
Values: Customer First, Team Cooperation, Embrace Changes, Integrity, Creative & Happy

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