Flat Transformer Construction

Element Construction:
(1)  The flat transformer consists of 2 epoxy coated square ferrite cores.
(2)  Each core has 2 built-in helix windings bonded to the inside surfaces.

Flat Transformer Modules:
Flat Transformers consist of multiple elements with matching inductors.

Schematic of the secondary circuit arrangement of a flat transformer and inductor module is shown above. In this configuration, the primary windings are installed by the customer for flexibility in changing the turns ratio, or are installed at factory prior to shipping to customer.
 

Flat Transformer Multiple-Module Application Example:
Modules are optimized for 300 watt to 2,000 watt switching power supplies. (600 watts require 4 modules - FTI-12x2A-4B;  2,000 watts require 14 modules - FTI-12x2A-14B)

Availability:
The flat Transformers are available either as modules without a primary winding (FTI series - customer installed primary winding) or as a complete fully wound transformer (CTI series). All the secondary windings for both FTI and CTI series are single turn push-pull windings (2 turns, center tapped).