HPHF transformer ( High Power, High Frequency) -- for DC charge pile
Breaking the power/frequency barrier with patented pdqb winding technology
Murata’s innovative pdqb winding technology makes it possible to construct high frequency transformers of up to and over 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.
Eliminating high frequency losses
It is difficult to construct compact single module high frequency power magnetics using conventional transformer design, because neighbouring current carrying conductors become immersed in each other’s magnetic fields, creating losses through what is known as ‘proximity effect’.
This ‘proximity effect’, along with other losses associated with conventional construction, has limited miniaturization and the frequency at which high power transformers can operate ...until now.
Murata’s pdqb winding technology practically eliminates proximity effect while also mitigating the effects of interwinding capacitance and other losses, allowing for higher frequencies at higher power, in smaller packages.
Features
- Murata pdqb winding configuration that mitigates the high
- frequency losses and enables the construction of very
- high power high frequency transformers.
- Wide power range options: D18 to 400kW
- Up to 10kV input output isolation
- Higher isolation on bespoke solutions
- Over 99.5% efficiency
- Wide operating frequency range: 20-250kHz or higher Input/output voltages: 50V -to over 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
Benefits
- Murata’s patented technology allows designers to push the boundaries of high-power, high-frequency power conversion, offering custom solutions over 30kW which achieve increased efficiencies when compared to conventional transformer designs.
