REO is an original manufacturer of high quality power equipment, including electronic controllers, components and electrical regulators.
Whilst linear power supplies based on transformers, rectifiers and LC smoothing provide better line and load regulation, output ripple, transient recovery and longer hold-up times compared with switching power supplies, they are not as efficient and have a low power to volume ratio. Nowadays, weight, efficiency, availability of raw materials such as electrical steel and copper and manufacturing costs, together with the new developments in power switching devices, are invariably leading to predominance of switch-mode power supplies, certainly for power ranges from 100W up to a few kW.