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IMI subsidiary gets US patent for power converter

Posted: 04 Nov 2010 ?? ?Print Version ?Bookmark and Share

Keywords:dual-switch? power converter? patent?

Speedy-Tech Electronics Ltd, a subsidiary of Integrated Micro-Electronics Inc. (IMI) has received a patent for a dual-switch forward power converter that "employs a self-coupled driver to achieve among other advantages higher efficiency, lower part count and component cost," as described in the patent abstract.

The patent further describes the device: "In one aspect of the present invention, a power converter comprises a transformer and two switching transistors, and said transformer has two serially-connected primary windings with the first winding connected to a first switching transistor which is biased by a pulse controller, and the second winding couples the voltage across said first winding to bias the second switching transistor. In addition, the circuit on the primary side of said transformer further comprises means of dissipating magnetization current and the circuit on the secondary side comprises a rectifier and a low-pass filter."

The inventors are Sun Huat Lim, Teo Chye Phua and Binbin Zhang . The patent was filed on February 27, 2007 and granted on August 21, 2010.

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