Patents by Inventor Ching-Fu Hsueh
Ching-Fu Hsueh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7884694Abstract: A transformer is provided. The transformer includes at least a high voltage coil, at least a low voltage coil and a soft-magnetic colloid element. The soft-magnetic colloid element is disposed between the high voltage coil and the low voltage coil.Type: GrantFiled: October 9, 2008Date of Patent: February 8, 2011Assignee: Darfon Electronics Corp.Inventors: Ching-Fu Hsueh, Wen-Hsien Chen, Wei-Shun Liao, Ho-Chun Lee
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Patent number: 7710230Abstract: 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.Type: GrantFiled: September 28, 2006Date of Patent: May 4, 2010Assignee: Darfon Electronics Corp.Inventors: Ching-Fu Hsueh, Wan-Chin Hsu
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Publication number: 20090096563Abstract: An inductance is provided. The inductance includes a metal core, a coil and a soft-magnetic colloid element. The coil is wound around the metal core. The soft-magnetic colloid element surrounds the coil.Type: ApplicationFiled: October 9, 2008Publication date: April 16, 2009Applicant: DARFON ELECTRONICS CORP.Inventors: Ching-Fu HSUEH, Wen-Hsien CHEN, Ho-Chun LEE, Wei-Shun LIAO
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Publication number: 20090096564Abstract: A transformer is provided. The transformer includes at least a high voltage coil, at least a low voltage coil and a soft-magnetic colloid element. The soft-magnetic colloid element is disposed between the high voltage coil and the low voltage coil.Type: ApplicationFiled: October 9, 2008Publication date: April 16, 2009Applicant: DARFON ELECTRONICS CORP.Inventors: Ching-Fu HSUEH, Wen-Hsien CHEN, Wei-Shun LIAO, Ho-Chun LEE
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Patent number: 7459863Abstract: 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.Type: GrantFiled: September 27, 2007Date of Patent: December 2, 2008Assignee: Darfon Electronics Corp.Inventors: Ching-Fu Hsueh, Cheng-Hsien Chien, Wan-Chin Hsu
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Patent number: 7449843Abstract: 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.Type: GrantFiled: July 26, 2007Date of Patent: November 11, 2008Assignee: Darfon Electronics Corp.Inventors: Ching-Fu Hsueh, Cheng-Hsien Chien, Wan-Chin Hsu
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Publication number: 20080143276Abstract: 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.Type: ApplicationFiled: September 27, 2007Publication date: June 19, 2008Applicant: DARFON ELECTRONICS CORP.Inventors: Ching-Fu Hsueh, Cheng-Hsien Chien, Wan-Chin Hsu
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Patent number: 7385358Abstract: A power supply circuit for a first and a second lamps and the transformer thereof is provided. The power supply circuit comprises a driving circuit and a transformer. The transformer includes a magnetic core, a primary coil set, a secondary coil, a first coil and a second coil. The driving circuit provides an alternative voltage. The primary coil set is wound on the magnetic core, along with the secondary coil, the first and the second coils, and receives the alternative voltage. The turns of the first coil and the second coil are substantially the same. The first lamp is coupled between the first coil and the secondary coil, and the second lamp is coupled between the second coil and the secondary coil.Type: GrantFiled: August 17, 2007Date of Patent: June 10, 2008Assignee: Darfon Electronics Corp.Inventors: Ching-Fu Hsueh, Cheng-Hsien Chien
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Publication number: 20080079526Abstract: A transformer includes a bobbin, a primary coil, a first secondary coil, a first core, a second core and a third core. The bobbin has a through hole. The primary coil and the first secondary coil are respectively surrounded on the bobbin. The first core is embedded into the through hole. The second core is coupled to the first core to form a magnetic loop. The third core is coupled to the first core and the second core and located between the primary coil and the first secondary coil. The third core having high impedance is fastened on the second core or the bobbin alternatively. A light tube driving circuit with the above transformer drives a discharge lamp.Type: ApplicationFiled: December 3, 2007Publication date: April 3, 2008Applicant: DARFON ELECTRONICS CORP.Inventors: Ching-Fu Hsueh, Wen-Hsien Chen, Wan-Chin Hsu
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Publication number: 20080048580Abstract: 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.Type: ApplicationFiled: July 26, 2007Publication date: February 28, 2008Applicant: DARFON ELECTRONICS CORP.Inventors: Ching-Fu Hsueh, Cheng-Hsien Chien, Wan-Chin Hsu
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Publication number: 20070278970Abstract: A power supply circuit for a first and a second lamps and the transformer thereof is provided. The power supply circuit comprises a driving circuit and a transformer. The transformer includes a magnetic core, a primary coil set, a secondary coil, a first coil and a second coil. The driving circuit provides an alternative voltage. The primary coil set is wound on the magnetic core, along with the secondary coil, the first and the second coils, and receives the alternative voltage. The turns of the first coil and the second coil are substantially the same. The first lamp is coupled between the first coil and the secondary coil, and the second lamp is coupled between the second coil and the secondary coil.Type: ApplicationFiled: August 17, 2007Publication date: December 6, 2007Applicant: DARFON ELECTRONICS CORP.Inventors: Ching-Fu Hsueh, Cheng-Hsien Chien
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Patent number: 7274156Abstract: A power supply circuit for a first and a second lamps and the transformer thereof is provided. The power supply circuit comprises a driving circuit and a transformer. The transformer includes a magnetic core, a primary coil set, a secondary coil, a first coil and a second coil. The driving circuit provides an alternative voltage. The primary coil set is wound on the magnetic core, along with the secondary coil, the first and the second coils, and receives the alternative voltage. The turns of the first coil and the second coil are substantially the same. The first lamp is coupled between the first coil and the secondary coil, and the second lamp is coupled between the second coil and the secondary coil.Type: GrantFiled: March 29, 2006Date of Patent: September 25, 2007Assignee: Darfon Electronics Corp.Inventors: Ching-Fu Hsueh, Cheng-Hsien Chien
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Patent number: 7271548Abstract: A multi-lamp driver driving first and second lamps and comprising a driving circuit and a transformer. The transformer comprises a winding rack, a magnetic core, two primary winding sets, and two secondary winding sets. One portion of the magnetic core is inserted into the winding rack. The two primary winding sets are wound around the winding rack and receive low-voltage signals from the driving circuit. The two secondary winding sets are wound around the winding rack, and two high-voltage signals are induced to respectively drive the first and second lamps. The primary winding sets have substantially the same number of windings, and the secondary winding sets have substantially the same number of windings.Type: GrantFiled: January 27, 2006Date of Patent: September 18, 2007Assignee: Darfon Electronics Corp.Inventors: Ching-Fu Hsueh, Cheng-Hsien Chien
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Publication number: 20070075821Abstract: A transformer including an insulting housing, a first bobbin, a primary coil, a second bobbin, a secondary coil, a first core and a second core is provided. The insulting 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 insulting 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.Type: ApplicationFiled: September 28, 2006Publication date: April 5, 2007Applicant: Darfon Electronics Corp.Inventors: Ching-Fu Hsueh, Wan-Chin Hsu
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Patent number: 7176777Abstract: 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.Type: GrantFiled: March 24, 2005Date of Patent: February 13, 2007Assignee: Darfon Electronics Corp.Inventors: Ching-Fu Hsueh, Wan-Chin Hsu, Chih-Shin Huang
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Patent number: 7154366Abstract: 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.Type: GrantFiled: March 1, 2006Date of Patent: December 26, 2006Assignee: Darfon Electronics Corp.Inventors: Ching-Fu Hsueh, Wen-Hsien Chen, Wan-Chin Hsu
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Publication number: 20060250096Abstract: A power supply circuit for a first and a second lamps and the transformer thereof is provided. The power supply circuit comprises a driving circuit and a transformer. The transformer includes a magnetic core, a primary coil set, a secondary coil, a first coil and a second coil. The driving circuit provides an alternative voltage. The primary coil set is wound on the magnetic core, along with the secondary coil, the first and the second coils, and receives the alternative voltage. The turns of the first coil and the second coil are substantially the same. The first lamp is coupled between the first coil and the secondary coil, and the second lamp is coupled between the second coil and the secondary coil.Type: ApplicationFiled: March 29, 2006Publication date: November 9, 2006Inventors: Ching-Fu Hsueh, Cheng-Hsien Chien
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Patent number: 7116205Abstract: 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.Type: GrantFiled: March 12, 2004Date of Patent: October 3, 2006Assignee: Darfon Electronics Corp.Inventors: Ching-Fu Hsueh, Wan-Chin Hsu, Chih-Shin Huang
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Publication number: 20060197643Abstract: 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.Type: ApplicationFiled: March 1, 2006Publication date: September 7, 2006Inventors: Ching-Fu Hsueh, Wen-Hsien Chen, Wan-Chin Hsu
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Publication number: 20060181384Abstract: A transformer includes a bobbin, a primary coil, a first secondary coil, a first core, a second core and a third core. The bobbin has a through hole. The primary coil and the first secondary coil are respectively surrounded on the bobbin. The first core is embedded into the through hole. The second core is coupled to the first core to form a magnetic loop. The third core is coupled to the first core and the second core and located between the primary coil and the first secondary coil. The third core having high impedance is fastened on the second core or the bobbin alternatively. A light tube driving circuit with the above transformer drives a discharge lamp.Type: ApplicationFiled: January 30, 2006Publication date: August 17, 2006Inventors: Ching-Fu Hsueh, Wen-Hsien Chen, Wan-Chin Hsu