1kW Rated Power Planar PCB Winding High Frequency Transformer with Low Profile

Planar PCB Winding High Frequency Power Transformer 1kW

Engineered for the next generation of high-density server power supplies and telecom rectifiers, our planar high frequency transformer employs multilayer PCB technology to replace traditional wire-wound construction. This approach delivers exceptional parasitic parameter consistency from unit to unit, making it ideal for LLC resonant converters and phase-shifted full-bridge topologies at power levels up to 1kW.

Key Features

• Ultra-Low Profile: Total height under 15mm, enabling slim 1U and blade server power supply form factors that are impossible with conventional wound transformers.
• PCB Winding Technology: Photo-etched copper traces on multilayer FR-4 or high-Tg substrates provide precise, repeatable winding geometries with tight coupling and predictable leakage inductance.
• Superior Thermal Management: Large flat surface area of planar construction facilitates direct heatsink attachment, reducing hot-spot temperatures by 15-20°C versus equivalent wound designs.
• Wide Frequency Range: Optimized for 100kHz-1MHz operation using advanced low-loss ferrite core materials (3F36/3C96 equivalents).
• High Efficiency: Achieves ≥97% conversion efficiency when paired with modern GaN or SiC switching devices in LLC resonant topologies.

Applications

• Server and Data Center Power Supplies (1U/2U)
• Telecom Rectifier Modules (48V bus)
• EV On-Board Chargers (OBC)
• High-Power LED Driver Systems
• Industrial Welding Power Sources
• Renewable Energy Micro-Inverters

Why Planar?

Planar transformers eliminate the variability inherent in hand-wound or semi-automated winding processes. Every unit has identical AC resistance, leakage inductance, and interwinding capacitance — critical for mass-produced resonant converters where parametric variation directly impacts efficiency and EMI compliance.

Engineering Support

Our team provides full design support including magnetics simulation (ANSYS Maxwell / PExprt), PCB layout review, and thermal analysis. We can integrate directly with your PCB design files to create the optimal transformer solution for your specific topology and power requirements.

1kW Rated Power Planar Transformer

Low Profile <15mm PCB Winding Transformer

≥97% Efficiency High Frequency Transformer

1kW Rated Power Planar PCB Winding High Frequency Transformer with Low Profile Images