36VDC-72VDC Input, 5V/60A Interleaved Active Clamp Forward


Design files


This reference design generates a 5V/60A 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. This design includes trimming, remote sense, and output overvoltage features.

Output voltage options PMP2214.1
Vin (Min) (V) 36
Vin (Max) (V) 72
Vout (Nom) (V) 5
Iout (Max) (A) 60
Output Power (W) 300
Isolated/Non-Isolated Isolated
Input Type DC
Topology Forward- Active Clamp

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

SLUUA33.PDF (1175 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

SLUR969.PDF (163 K)

Detailed schematic diagram for design layout and components

SLUR970.PDF (21 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

SLUC392.ZIP (241 K)

Design file that contains information on physical board layer of design PCB

SLUUA34.PDF (299 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

PWM controllers

UCC2891110-V active clamp current mode PWM controller with P-channel clamp FET and 0.75V CS threshold

Data sheet document-pdfAcrobat PDF

Technical documentation

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Type Title Date
Application note Design of a 60-A interleaved active-clamp forward converter Jan. 22, 2013
Test report PMP2214 Test Results Oct. 12, 2012

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