STMicroelectronics EVL400W-EUPL7 Converter Demonstration Board is a 12V - 400W converter, tailored for the typical specification of an AC/DC adapter with wide input mains range. It also includes a very low power consumption at light load and good average efficiency. The architecture is based on a two-stage approach. The first stage is a front-end PFC pre-regulator based on a CCM (continuous conduction mode) boost PFC controller using the L4984, and a downstream LLC resonant half-bridge converter, designed around the L6699. At the secondary side, synchronous rectification is implemented utilizing the SRK2001 that assures a very high rectification efficiency with consequent small heat sink required.
STMicroelectronics EVL400W-EUPL7 Converter Demonstration Board is a 12V - 400W converter, tailored for the typical specification of an AC/DC adapter with wide input mains range. It also includes a very low power consumption at light load and good average efficiency. The architecture is based on a two-stage approach. The first stage is a front-end PFC pre-regulator based on a CCM (continuous conduction mode) boost PFC controller using the L4984, and a downstream LLC resonant half-bridge converter, designed around the L6699. At the secondary side, synchronous rectification is implemented utilizing the SRK2001 that assures a very high rectification efficiency with consequent small heat sink required.
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