Richard J Pierson

US Patent:

8598857, Dec 3, 2013

Filed:

Dec 11, 2008

Appl. No.:

12/333003

Inventors:

Richard Pierson - Newport Beach CA, US
Scott Southwell - Seal Beach CA, US
Benjamim Tang - Rancho Palos Verdes CA, US
Timothy M. Ng - Monterey Park CA, US
Jinghong Guo - Torrance CA, US
Kenneth A. Ostrom - Palos Verdes Estates CA, US

Assignee:

Infineon Technologies Austria AG - Villach

International Classification:

G05F 1/575

US Classification:

323283, 323272, 323284

Abstract:

Methods and apparatus for a multiphase power regulator according various aspects of the present invention operate in conjunction with an active transient response (ATR) system for applying a correction signal to a multiphase pulse width modulator. In the event of a transient, the ATR system may adjust the output of the pulse width modulator to quickly respond to load requirements. The output may be modified by adding pulses, blanking pulses, advancing pulses, and scaling pulses to one or more phases.

US Patent:

20120229104, Sep 13, 2012

Filed:

Mar 11, 2011

Appl. No.:

13/046603

Inventors:

Richard Pierson - Newport Beach CA, US
Jinghong Guo - Torrance CA, US
Timothy M. Ng - Monterey Park CA, US
Benjamim Tang - Rancho Palos Verdes CA, US
Amir Babazadeh - Irvine CA, US
Scott Southwell - Seal Beach CA, US

International Classification:

G05F 1/10

US Classification:

323234

Abstract:

Methods and apparatus of dynamic transient optimization in a voltage regulator according to various aspects of the present invention may comprise a transition detector configured to compare an output voltage error to an amplitude threshold. The voltage regulator may further comprise a frequency detector configured to measure the frequency of the amplitude threshold being exceeded and to compare the frequency to a frequency threshold and a response circuit configured to activate a response according to a comparison between the frequency threshold and the frequency of the amplitude threshold being exceeded.

US Patent:

20140035651, Feb 6, 2014

Filed:

Oct 14, 2013

Appl. No.:

14/053224

Inventors:

- Villach, AT
Richard Pierson - Newport Beach CA, US
Benjamim Tang - Rancho Palos Verdes CA, US
Clark Custer - Torrance, CA
Scott Southwell - Seal Beach CA, US
Felix Kim - Plano TX, US

International Classification:

G05F 1/10

US Classification:

327323

Abstract:

Methods and apparatus selecting settings for circuits according to various aspects of the present invention may operate in conjunction with a measurement element connected to the circuit. The circuit may include a voltage source adapted to supply a voltage to the measurement element. The voltage may be substantially independent of the characteristics of the measurement element. The circuit may further include a measurement sensor responsive to a current in the measurement element. The measurement sensor may generate a control signal according to the current in the measurement element.

US Patent:

20140043008, Feb 13, 2014

Filed:

Jun 7, 2011

Appl. No.:

13/155282

Inventors:

Amir Babazadeh - Irvine CA, US
Benjamim Tang - Rancho Palos Verdes CA, US
Jinghong Guo - Torrance CA, US
Scott Southwell - Seal Beach CA, US
Tim Ng - Monterey Park CA, US
Richard Pierson - Newport Beach CA, US
Nick Steffen - Redondo Beach CA, US

International Classification:

G05F 3/02

US Classification:

323304

Abstract:

Methods and apparatus for power regulation according to various aspects of the present invention may operate in conjunction with producing a voltage ramp starting at a first voltage and ending at a second voltage and compensating the voltage ramp according to a compensation parameter. The compensation parameter may be adapted to compensate for a circuit parameter. A voltage may then be generated according to the compensated voltage ramp.

US Patent:

20190363631, Nov 28, 2019

Filed:

Aug 12, 2019

Appl. No.:

16/537954

Inventors:

- Villach, AT
Richard Pierson - Newport Beach CA, US
Scott Southwell - Seal Beach CA, US
Tim Ng - Monterey Park CA, US
Yi-Yuan Liu - Redondo Beach CA, US
Brian Molloy - Milpitas CA, US
Kenneth Ostrom - Palos Verdes Estates CA, US
Amir Babazadeh - Laguna Hills CA, US

International Classification:

H02M 3/158
H02M 1/084
H02M 1/36
H02M 1/08
H02H 7/12
G01R 19/04
G01R 31/42

Abstract:

According to an embodiment, a multiphase regulator includes a plurality of output phases each of which is operable to deliver a phase current through a separate inductor to a load connected to the output phases via the inductors and an output capacitor. A controller is operable to regulate a voltage delivered to the load by adjusting the phase currents delivered to the load by the output phases, monitor the phase currents delivered to the load by the output phases, test the output phases in a predetermined sequence, and determine if the phase currents respond in a predetermined way.

US Patent:

20170179828, Jun 22, 2017

Filed:

Mar 7, 2017

Appl. No.:

15/452215

Inventors:

- Villach, AT
Richard Pierson - Newport Beach CA, US
Scott Southwell - Seal Beach CA, US
Tim Ng - Monterey Park CA, US
Yi-Yuan Liu - Redondo Beach CA, US
Brian Molloy - Milpitas CA, US
Kenneth Ostrom - Palos Verdes Estates CA, US
Amir Babazadeh - Laguna Hills CA, US

International Classification:

H02M 3/158
H02M 1/084

Abstract:

According to an embodiment, a multiphase regulator includes a plurality of output phases each of which is operable to deliver a phase current through a separate inductor to a load connected to the output phases via the inductors and an output capacitor. A controller is operable to regulate a voltage delivered to the load by adjusting the phase currents delivered to the load by the output phases, monitor the phase currents delivered to the load by the output phases, test the output phases in a predetermined sequence, and determine if the phase currents respond in a predetermined way.

US Patent:

20170179830, Jun 22, 2017

Filed:

Mar 7, 2017

Appl. No.:

15/451941

Inventors:

- Villach, AT
Richard Pierson - Newport Beach CA, US
Scott Southwell - Seal Beach CA, US
Tim Ng - Monterey Park CA, US
Yi-Yuan Liu - Redondo Beach CA, US
Brian Molloy - Milpitas CA, US
Kenneth Ostrom - Palos Verdes Estates CA, US
Amir Babazadeh - Laguna Hills CA, US

International Classification:

H02M 3/158
G01R 31/42
H02M 1/08
G01R 19/04
H02H 7/12
H02M 1/36

Abstract:

According to an embodiment, a multiphase regulator includes a plurality of output phases each of which is operable to deliver a phase current through a separate inductor to a load connected to the output phases via the inductors and an output capacitor. A controller is operable to regulate a voltage delivered to the load by adjusting the phase currents delivered to the load by the output phases, monitor the phase currents delivered to the load by the output phases, determine if the monitored phase currents indicate any of the individual output phases, any of the individual inductors or the output capacitor are faulty even if the total current delivered to the load is within specified limits, synchronously switch the output phases which cause ripples in the phase currents, and detect if any of the phase currents fail to have a ripple current pattern that matches an expected ripple current pattern.

US Patent:

20150002112, Jan 1, 2015

Filed:

Jun 26, 2013

Appl. No.:

13/928005

Inventors:

- Villach, AT
Richard Pierson - Newport Beach CA, US
Scott Southwell - Seal Beach CA, US
Tim Ng - Monterey Park CA, US
Yi-Yuan Liu - Redondo Beach CA, US
Brian Molloy - Milpitas CA, US
Kenneth Ostrom - Palos Verdes Estates CA, US
Amir Babazadeh - Irvine CA, US

International Classification:

H02M 5/293

US Classification:

323271

Abstract:

A multiphase regulator includes a plurality of output phases, each operable to deliver a phase current through a separate inductor to a load connected to the output phases via the inductors and an output capacitor. The multiphase regulator further includes a controller operable to regulate a voltage delivered to the load by adjusting the phase currents delivered to the load by the output phases, and monitor the phase currents delivered to the load by the output phases. The controller is further operable to determine if the monitored phase currents indicate any of the individual output phases, any of the individual inductors or the output capacitor are faulty, even if the total current delivered to the load is within specified limits.