Digital power conversion and digital power management were demonstrated during a special “Digital Power Supply Control” session at Techno Frontier. Cosel, Bellnix Co, Ltd., and TDK Lambda all made presentations about the benefits of digital power to improve performance and lower the cost of power converters.
Cosel used the just-released CHS series of regulated bus converters to demonstrate several benefits of digital control. These converters deliver 80W with 93% efficiency from a sixteenth-brick format and 200W with 94% efficiency from an eighth-brick format. These bus converters employ Cosel’s “digital assisted control” to combine the benefits of fast analog control with the flexibility and component count reduction enabled by microprocessor-based digital control.