Pablo Moreno Galbis

US Patent:

20120293156, Nov 22, 2012

Filed:

Jun 21, 2012

Appl. No.:

13/529085

Inventors:

Pablo Moreno Galbis - Palo Alto CA, US
James E.C. Brown - San Jose CA, US

Assignee:

R2 SEMICONDUCTOR, INC. - Sunnyvale CA

International Classification:

G05F 1/565

US Classification:

323350

Abstract:

Methods, apparatuses and systems for assisting an output current of a voltage converter, are disclosed. One method includes detecting a request for a positive change in an output voltage of the voltage converter, selecting an output current assist value based on the requested positive change in the output voltage, for a predetermined load, and assisting the output current with the selected output assist current.

US Patent:

20130249505, Sep 26, 2013

Filed:

May 1, 2013

Appl. No.:

13/874631

Inventors:

James E.C. Brown - San Jose CA, US
Daniel Dobkin - Sunnyvale CA, US
Pablo Moreno Galbis - Palo Alto CA, US
Cory Severson - Coarsegold CA, US
David Fisher - Menlo Park CA, US

Assignee:

R2 SEMICONDUCTOR, INC. - Sunnyvale CA

International Classification:

G05F 3/08

US Classification:

323223

Abstract:

Embodiments for methods, apparatus and systems for operating a voltage regulator are disclosed. One embodiment of the voltage regulator generates a switching voltage through controlled closing and opening of a series switch element and a shunt switch element. The voltage regulator further includes a switched output filter that includes a plurality of capacitors for filtering the switching voltage and generating an output voltage. A mode controller is operative to disconnect at least one of the plurality of capacitors upon receiving a first indicator, where disconnecting causes the at least one of the plurality of capacitors to electrically float, wherein while the at least one capacitor is disconnected the output voltage is changed from a first value to a second value, return the output voltage to a first value or a third value upon receiving a second indicator, and reconnect the at least one of the plurality of capacitors.

US Patent:

20130267187, Oct 10, 2013

Filed:

Jun 5, 2013

Appl. No.:

13/910259

Inventors:

James E.C. Brown - San Jose CA, US
Daniel Dobkin - Sunnyvale CA, US
Pablo Moreno Galbis - Palo Alto CA, US
Cory Severson - Coarsegold CA, US
Lawrence M. Burns - Los Altos CA, US

Assignee:

R2 SEMICONDUCTOR, INC. - Sunnyvale CA

International Classification:

H02M 3/156

US Classification:

4551272, 323311

Abstract:

Embodiments for at methods, apparatus and systems for operating a voltage regulator are disclosed. One apparatus includes a switching voltage regulator, wherein the switching voltage regulator includes a series switch element, a shunt switch element, a switching controller and a switched output filter. The switching controller is configured to generate a switching voltage through controlled closing and opening of the series switch element and the shunt switch element. The switched output filter filters the switching voltage and generates a regulated output voltage, wherein the switched output filter includes a plurality of capacitors that are selectively included within the switched output filter.

US Patent:

20130321076, Dec 5, 2013

Filed:

Jun 4, 2012

Appl. No.:

13/488268

Inventors:

Pablo Moreno Galbis - Palo Alto CA, US
James E.C. Brown - San Jose CA, US

Assignee:

R2 SEMICONDUCTOR, INC. - Sunnyvale CA

International Classification:

H03F 3/20
G05F 1/46

US Classification:

330127, 323282, 323284

Abstract:

Embodiments for at methods, apparatus and systems for operating a voltage regulator are disclosed. One method includes generating, by a switching controller, a switching voltage through controlled closing and opening of a series switch element and a shunt switch element, and generating an output voltage by filtering the switching voltage with an output inductor and a load capacitor. The method further includes generating an assisting current based on a value of current conducted through the output inductor, and assisting the load current by summing the assisting current with the current conducted through the inductor.

US Patent:

20140009130, Jan 9, 2014

Filed:

Mar 12, 2013

Appl. No.:

13/795505

Inventors:

Pablo Moreno Galbis - Palo Alto CA, US
James E. C. Brown - San Jose CA, US
Cory Severson - Coarsegold CA, US

Assignee:

R2 Semiconductor, Inc. - Sunnyvale CA

International Classification:

G05F 1/46

US Classification:

323271

Abstract:

Embodiments of systems, methods and apparatuses of a switching voltage regulator are disclosed. One switching voltage regulator includes a series switch element, a shunt switch element, a PWM controller, and a mode controller. The PWM controller includes an error amplifier and a switching controller. The error amplifier generates an error signal based on a difference between a reference voltage and an output voltage. Further, the switching controller is operative to generate switch element control voltages based on the error signal, for controlling opening and closing of the series switch element and the shunt switch element, wherein the opening and closing of the series switch element and the shunt switch element generates a switching voltage. The mode controller is operative adjust a gain of the error amplifier over a selected range of frequencies based on a parameter indicative of a likelihood of oscillations in the output voltage.

US Patent:

20120244916, Sep 27, 2012

Filed:

Feb 18, 2012

Appl. No.:

13/400048

Inventors:

James E. C. Brown - San Jose CA, US
Daniel Dobkin - Sunnyvale CA, US
Pablo Moreno Galbis - Palo Alto CA, US
Cory Severson - Coarsegold CA, US
Lawrence M. Burns - Los Altos CA, US

Assignee:

R2 SEMICONDUCTOR, INC. - Sunnyvale CA

International Classification:

H04B 1/38
G05F 3/16

US Classification:

455571, 323223

Abstract:

Embodiments for at methods, apparatus and systems for operating a voltage regulator are disclosed. One method includes generating, by a switching controller, a switching voltage through controlled closing and opening of a series switch element and a shunt switch element. Further, the method includes generating, by a switchable output filter, a regulated output voltage by filtering the switching voltage, wherein the switchable output filter comprises a plurality of capacitors that are selectively included within the switchable output filter.

US Patent:

20200097033, Mar 26, 2020

Filed:

Sep 23, 2019

Appl. No.:

16/579210

Inventors:

- San Jose CA, US
Pradeep Shettigar - San Jose CA, US
Pablo Moreno Galbis - San Mateo CA, US

International Classification:

G05F 1/56
G05F 1/46

Abstract:

A start-up speed enhancement circuit and method for lower-power regulators is provided herein. Operations of a method can comprise detecting a condition of a power regulator being a start-up condition and applying a first current and a second current to the power regulator based on the start-up condition. The method can also comprise determining the condition of the power regulator changes from the start-up condition to an operation condition. Further, the method can comprise stopping application of the second current to the power regulator based on the condition being the operation condition.

US Patent:

20140253065, Sep 11, 2014

Filed:

Jul 21, 2013

Appl. No.:

13/947077

Inventors:

James E. C. Brown - San Jose CA, US
Pablo Moreno Galbis - Burlingame CA, US
John O'Boyle, III - San Francisco CA, US

Assignee:

R2 SEMICONDUCTOR, INC. - Sunnyvale CA

International Classification:

H02M 3/158

US Classification:

323272, 323311

Abstract:

Embodiments of systems, methods and apparatuses of a voltage regulator are disclosed. One apparatus of the voltage regulator includes a series switch element, wherein the series switch element comprises a plurality of partitioned series switch elements, a shunt switch element, and a switching controller. The switching controller is operative to control the series switch element and the shunt switch element in an idle state, wherein none of the plurality of partitioned series switch elements are active, control the series switch element and the shunt switch element in a burst state, wherein N of the plurality of partitioned series switch elements are active, and control the series switch element and the shunt switch element in a transition state, wherein M of the plurality of partitioned series switch elements are active, and wherein M is less than N.