Jason E Houston

US Patent:

20080303495, Dec 11, 2008

Filed:

Jun 9, 2008

Appl. No.:

12/136014

Inventors:

Jia WEI - Cary NC, US
Jason HOUSTON - Cary NC, US

Assignee:

INTERSIL AMERICAS INC. - Milpitas CA

International Classification:

G05F 1/618

US Classification:

323272

Abstract:

An embodiment of a power supply includes an input node operable to receive an input voltage, an output node operable to provide a regulated output voltage, an odd number of magnetically coupled phase paths each coupled between the input and output nodes, and a first magnetically uncoupled phase path coupled between the input and output nodes. Such a power supply may improve its efficiency by activating different combinations of the coupled and uncoupled phase paths depending on the load conditions. For example, the power supply may activate only an uncoupled phase path during light-load conditions, may activate only coupled phase paths during moderate-load conditions, and may activate both coupled and uncoupled phase paths during heavy-load conditions and during a step-up load transient.

US Patent:

20080309299, Dec 18, 2008

Filed:

Jun 9, 2008

Appl. No.:

12/136023

Inventors:

Jia WEI - Cary NC, US
Jason HOUSTON - Cary NC, US

Assignee:

INTERSIL AMERICAS INC. - Milpitas CA

International Classification:

G05F 1/10
H01F 17/04
H01F 27/24

US Classification:

323247, 336178

Abstract:

An embodiment of an inductor assembly includes a core, a first conductor, and a second conductor. The core includes first and second members, a first group of one or more forms extending between the members, a second group of one or more forms extending between the members, and an isolating region that magnetically isolates the first group of forms from the second group of forms. The first conductor is wound about a first one of the forms in the first group, and the second conductor is wound about a second one of the forms in the second group. Such an inductor assembly may allow both coupled and uncoupled inductors to be disposed on a common core, thus potentially reducing the cost and size of the inductors as compared to the coupled inductors being disposed on one core and the uncoupled inductors being disposed on another core.

US Patent:

20080315982, Dec 25, 2008

Filed:

Jun 9, 2008

Appl. No.:

12/136018

Inventors:

Jia WEI - Cary NC, US
Jason HOUSTON - Cary NC, US

Assignee:

INTERSIL AMERICAS INC. - Milpitas CA

International Classification:

H01F 21/08

US Classification:

336155

Abstract:

An embodiment of a coupled-inductor core includes first and second members and first and second forms extending between the first and second members. The first form has a parameter (e.g., length) of a first value, and is operable to conduct a first magnetic flux having a first density that depends on the first value of the parameter. The second form is spaced apart from the first form, has the parameter (e.g., length) of a second value different from the first value, and is operable to conduct a second magnetic flux having a second density that depends on the second value of the parameter. Because two or more of the forms of such a core may have different values for the same parameter, the core may be suitable for use in a multiphase power supply where the currents through the phases are unbalanced.

US Patent:

20160098054, Apr 7, 2016

Filed:

Dec 11, 2015

Appl. No.:

14/967163

Inventors:

- Milpitas CA, US
Jason HOUSTON - Cary NC, US

International Classification:

G05F 3/04

Abstract:

An embodiment of a coupled-inductor core includes first and second members and first and second forms extending between the first and second members. The first form has a parameter (e.g., length) of a first value, and is operable to conduct a first magnetic flux having a first density that depends on the first value of the parameter. The second form is spaced apart from the first form, has the parameter (e.g., length) of a second value different from the first value, and is operable to conduct a second magnetic flux having a second density that depends on the second value of the parameter. Because two or more of the forms of such a core may have different values for the same parameter, the core may be suitable for use in a multiphase power supply where the currents through the phases are unbalanced.