High Power, High Frequency Transformers
Murata’s innovative pdqb winding technology makes it possible to construct high frequency transformers of up to 200kW which can operate at frequencies as high as 250 kHz. This is made possible because the construction eliminates constraints that limit conventional manufacturing techniques. The pdqb winding technique overcomes the skin and proximity effects as well as other high frequency losses associated with conventional construction methods, delivering an efficient (>99.5 %) solution in a compact footprint.
Thermal performance is also improved, increasing power density while eliminating the space requirements and cost associated with heatsinking. Each design can be optimized by a combination of Murata’s transformer expertise and their own simulation software.
These transformers are ideally suited to fast switching, high power applications such as eV fast charging, rail, and smart grid energy.
Features
Murata pdqb winding configuration mitigates high frequency losses enabling the construction of very high power high frequency transformers
- Wide power range options: 30kW to 200kW
- Up to 10kV input output isolation
- Over 99.5% efficiency
- Wide operating frequency range: 20-250kHz or higher
- Input/output voltages: 50V to 1kV
- 1:1 to 10:1 turns ratios
- Scalable technology
Applications
- EV/HEV charging
- Railway - on-board and line-side
- Energy distribution - smart grids
- Industrial inverters
- Renewable energy
Technical Specifications
| Parameter | Unit | Range |
|---|---|---|
| Vin | V | 50 to 1000 |
| Vout | V | 50 to 1000 |
| Turns ratio | - | 1:1 to 10:1 |
| Power rating | kW | 30 to 200 |
| Operating frequency | kHz | 20 to 250 |
| Primary inductance | mH | 1 to 15 |
| Leakage inductance | uH | 1 to 4 |
| Isolation | kV | ≥6 |
| Efficiency | % | >99.5 |
