Premo Proposes New Technology For High Power Planar Transformers
Premo has developed a new technology using planar transformers within a extended power range (few kW to 10 kW). This technology is specially developed for full-bridge topology with a high input voltage level (500-1000V) achieving different turns-ratio of 2 :1, 3 :1. Switching frequency can be defined between 70 to 160 kHz.
Main characteristics (2 :1 10kW/100kHz transformer example) include : 148.5 x 67 x 31mm max overall dimensions; less than 35W of losses at 100°C; low leakage inductance value (optimized primary/secondary coupling; easy mounting into the application (by M5 screws; bus-bar connections (for M4 screws); high cooling capability; H (180°C) thermal index according to IEC 85; compliant with many standards (IEC 61558, IEC 60974.); and high isolation (increased creepage distances).
Typical applications are power systems for machine-tools, laser cutting or punching systems, as well as special apparatus for medical appliance.
This new range of components completes the P264 family (multilayer printed-circuit-board technology) dedicated to industrial applications and the HPC / HPT series (overmolded products) fitting the next automotive platforms for hybrid and electrical vehicles.
