36VDC-72VDC Input, 5V/36A Interleaved Active Clamp Forward
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This reference design generates a 5V/36A output from a standard 48V telecom input. Two UCC2891controllers are configured to control two interleaved active-clamp forward power stages. The secondary circuitry implements self-driven synchronous rectifiers for a highly efficient design. Splitting the power into two paralleled power stages reduces conduction losses and allows this design to achieve efficiencies greater than 94 percent.