Phase shift full-bridge SMPS is massively over-hyped? – The Phase Shift Full Bridge (PSFB) converter is a hoax. The LTspice simulation (Editor’s note: see post for file) of a “plain” full-bridge SMPS bears this out. PSFB claims to be able to reduce switching losses compared to the “plain” full-bridge SMPS. However, the PSFB does have turn-OFF switching losses, just […]
Transformers
Transformers optimized for Fly-buck converters
Premier Magnetics, global producer of high-quality magnetic components, has introduced a line of transformers specifically designed to complement the Texas Instruments LM5017 family of Fly-Buck converters. The Premier Magnetics Fly-Buck transformers™ topology and electrical characteristics are designed to provide fast and simple implementation of the Fly-Buck circuit for two or four isolated outputs. The devices […]
Gallery: Scenes from the IEEE ECCE conference
The IEEE Energy Conversion Congress and Exposition took place last week in Pittsburgh. The clear trends based on exhibits on the show floor included a lot of interest in SiC power devices and in alternative topologies for inverters. Here are a few of the more interesting sites we encountered there. SiC on display The Center […]
Smaller design of high power toroidal transformers
BMG’s toroids are single and three-phase transformers from 5,000 VA to 50,000 VA. Conventional 50 KVA marina substations weigh around 400 lbs and for floating docks the weight is 275 lbs. This line of dry-type single-phase and three-phase low voltage (<600 VAC) high power transformers may be used individually or grouped together in Marina Substations […]
