220-W active-clamp flyback battery charger reference design


Design files


This reference design is a 220-W, active clamp flyback battery charger design with power factor correction (PFC) front end. This design takes a universal AC input of 90 V to 264 V and charges a battery with a VOUT range of 6-V to 22-V.

  • Universal Input
  • Power factor correction (PFC) front end
  • High efficiency and low power loss
  • Class B conducted EMI passed
  • Separate CC and CV loops to set the charge current and battery voltage
  • Passive cooling only with no fan needed
Output voltage options PMP23224.1
Vin (Min) (V) 85
Vin (Max) (V) 265
Vout (Nom) (V) 22
Iout (Max) (A) 10
Output Power (W) 220
Isolated/Non-Isolated Isolated
Input Type AC
Topology Flyback- Active Clamp
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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.

TIDT327.PDF (1895 K)

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


Detailed schematic diagram for design layout and components


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


Detailed overview of design layout for component placement

TIDMBK9.ZIP (1891 K)

Files used for 3D models or 2D drawings of IC components

TIDCGF0.ZIP (2042 K)

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

TIDMBK8.PDF (1364 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

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Technical documentation

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Type Title Date
* Test report Universal Input, 220-W PFC, Active-Clamp, Flyback Battery Charger Ref. Design PDF | HTML May 31, 2023

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