Darfon Electronics Corporation

Wan-Chin Hsu

Ching-Fu Hsueh

Cheng-Hsien Chien

Chih-Shin Huang

Wen-Hsien Chen

Chang-Lung Kang

Yu-Feng Wei

A transformer including an insulating housing, a first bobbin, a primary coil, a second bobbin, a secondary coil, a first core and a second core is provided. The insulating housing has a first chamber and a second chamber separated from the first chamber, wherein two apertures of the first chamber and the second chamber are respectively disposed on two opposite side-walls of the insulating housing. The first bobbin has a first through hole disposed in the first chamber. The primary coil is surrounded on the first bobbin. The second bobbin has a second through hole disposed in the second chamber. The secondary coil is surrounded on the second bobbin. The first core is inserted to the first through hole and the second through hole. The first core and the second core are coupled together to form a magnetic loop.

Transformer of light tube driving device and method for adjusting light tube using thereof

A transformer for driving multiple lamps includes a core, a primary winding set, a secondary winding set and a balancing winding set. The primary winding set winds around the core and includes a first primary coil. The secondary winding set winds around the core and includes a first secondary coil. The balancing winding set winds around the core and includes a first balancing coil and a second balancing coil which wind around the core in a combinative way. The primary winding set, the secondary winding set and the balancing winding set have the same magnetic-flux loop in the core.

Transformer and multi-lamp driving circuit using the same

A transformer for driving multi-lamps and a backlight module thereof are provided. The transformer comprises a primary winding, a secondary winding, a core, a first bobbin and a second bobbin. The primary winding comprises a primary coil. The secondary winding comprises a secondary coil and a plurality of auxiliary coils whose turns are substantially equal. The core has a first side and a second side. The first bobbin and the second bobbin are respectively disposed on the first side and the second side for winding around the primary coil, the secondary coil and the auxiliary coils.

Transformer for driving multi-lamp and backlight module thereof

A transformer includes a bobbin, a first magnetic core, a first and a second coils and a second magnetic core. The first magnetic core is disposed in the bobbin. The first coil and the second coil respectively wind around the bobbin. The second magnetic core covers at the exterior of the bobbin. A main magnetic flux is formed between the first magnetic core and the second magnetic core. A lamp driving system includes the above-mentioned transformer and a lamp. The first coil is input by a first voltage signal, the second coil is induced to generate a second voltage signal, and the lamp is driven by the second voltage signal.

Transformer and lamp driving system utilizing the same

A bobbin module of transformer is provided. The bobbin module includes two bobbins. Each of the bobbins comprises a body, an indentation and a hooker. The body has a lateral surface on which the indentation and the hooker are disposed. The hooker and the indentation of the bobbin are respectively engaged with the hooker and the indentation of the other bobbin so that the two bobbins are combined together.

Bobbin module of transformer

A transformer. The transformer drives a plurality of lighting tubes and comprises a coupling iron core, a first winding around the coupling iron core, a first bobbin disposed between the first winding and the coupling iron core, a plurality of second windings, independent of each other and respectively winding around the exterior of the first winding, wherein the second windings have the same winding number, and a second bobbin disposed between the first winding and one second winding.

Transformer and voltage supply circuit thereof for lighting tubes

A multi-lamp backlight system. The system includes a core, a first coil set wrapped around the core, to which a first AC voltage is applied, a second and third coil sets wrapped around the core and respectively disposed on two sides of the first coil set, on which a second and third AC voltage are induced by the first voltage signal applied to the first coil set respectively, wherein the numbers of coils of the second and third coil sets are substantially the same, and first and second lamps are supplied with power by the second and third AC voltages respectively.

Multi-lamp backlight system

A transformer. The transformer includes an iron core, a first bobbin, a second bobbin, a primary coil and a secondary coil. The first bobbin surrounds the iron core, and the second bobbin surrounds the first bobbin. The secondary coil is wound on the second bobbin, and the primary coil comprises a first coil section and a second coil section wound on the first bobbin, wherein the coil winding density of the first coil section exceeds the second coil section.

Growing community of inventors

Dasi, Taiwan

Wan-Chin Hsu