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Peng Xu, 48741 Catamaran St, San Mateo, CA 94404

Known as:
Li Xu Peng Su Xu Peng
Related to:
Xu U Peng

Peng Xu Phones & Addresses

741 Catamaran St, Foster City, CA 94404    650-3588929   

6 Dory Ln, Foster City, CA 94404    650-3588929   

San Mateo, CA   

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Resumes & CV records

Resumes

Peng Xu Photo 35

Analyst At Xingtai Capital Management

Position:
Analyst at Xingtai Capital Management
Location:
Shanghai City, China
Industry:
Financial Services
Work:
Xingtai Capital Management - Shanghai City, China since Oct 2012
Analyst Darwin Fenner Student Managed Fund Jan 2011 - Jun 2011
Research Analyst UBS Wealth Management Feb 2010 - Mar 2011
Senior Portfolio Manager Asisstant Tulane University Sep 2010 - Dec 2010
Teaching Assistant/MBA Class
Education:
Tulane University - A.B. Freeman School of Business 2007 - 2011
BSM, Finance and Mathematics with Energy Specialist Certificate UC Berkeley 2009 - 2009
Certifications:
CFA Level II candidate
Peng Xu Photo 36

Keeper

Location:
San Francisco, CA
Industry:
Accounting
Work:
Th
Keeper
Peng Xu Photo 37

Peng Xu

Peng Xu Photo 38

Peng Xu

Peng Xu Photo 39

Peng Xu

Location:
United States
Industry:
Higher Education

Publications & IP owners

Us Patents

Active Damping Control For A Switch Mode Power Supply

US Patent:
7230838, Jun 12, 2007
Filed:
Dec 28, 2005
Appl. No.:
11/321248
Inventors:
Peng Xu - San Jose CA, US
Assignee:
Monolithic Power Systems, Inc. - San Jose CA
International Classification:
H02M 5/42
G05F 1/40
US Classification:
363 86, 323282, 323283, 323285, 323287, 363 2116, 363127, 363 16
Abstract:
Methods and apparatus are disclosed for suppressing circuit noise due to parasitic elements in switch mode power supplies. The presented embodiments use actively controlled damping devices such as controllable resistors, current sources, and tri-state power devices to achieve required damping and to minimize power loss.

Method For High Efficiency Audio Amplifier

US Patent:
7417503, Aug 26, 2008
Filed:
Oct 17, 2005
Appl. No.:
11/252218
Inventors:
Peng Xu - Santa Clara CA, US
Wei Chen - Campbell CA, US
James C. Moyer - San Jose CA, US
Assignee:
Monolithic Power Systems, Inc. - San Jose CA
International Classification:
H03F 3/217
US Classification:
330207A, 330251
Abstract:
The present invention introduces methods and circuits to amplify audio signals for driving speakers. An additional feedback circuit is added in an audio amplifier to couple the amplifier stage and output stage of the audio amplifier. The feedback circuit turned off as long as output voltages of the audio amplifier are not near saturation. The feedback circuit is turned on to reduce audible noises if output voltages of the audio amplifier are near saturation.

System And Method For Open Lamp Protection

US Patent:
7420337, Sep 2, 2008
Filed:
May 31, 2006
Appl. No.:
11/444784
Inventors:
Yuancheng Ren - Hangzhou, CN
Peng Xu - San Jose CA, US
Kaiwei Yao - Santa Clara CA, US
Wei Chen - Campbell CA, US
Assignee:
Monolithic Power Systems, Inc. - San Jose CA
International Classification:
H05B 37/02
US Classification:
315308, 315362
Abstract:
A method for responding to an open lamp condition in a discharge lamp system is disclosed. The method monitors a current feedback signal flowing through a lamp and a voltage feedback signal indicative of a voltage across said lamp. A switch is used to switch between the current feedback signal to the voltage feedback signal upon detection of an open lamp condition.

Audio Amplifier With High Power And High Efficiency

US Patent:
7538611, May 26, 2009
Filed:
Mar 7, 2006
Appl. No.:
11/369929
Inventors:
Wei Chen - Campbell CA, US
Peng Xu - San Jose CA, US
Assignee:
Monolithic Power Systems, Inc. - San Jose CA
International Classification:
H03F 3/217
US Classification:
330251, 330207 A
Abstract:
A Class D audio amplifier with output signals capable of being as high as the amplifier's supply voltage. The audio amplifier contains a comparator, a positive output stage, and a negative output stage. The output signal from the positive output stage and the output signal from the negative output stage have opposite polarities and are connected to the comparator's negative and positive input terminals respectively. The Class D audio amplifier has superior transient response, and in turn, provides good sound quality and low THD. The resulting variable switching frequencies also help to alleviate EMI problems.

Switching Regulator Circuit For Operation As A Switching Device In A Switching Mode And A Passive Device In A Passive Mode

US Patent:
7830128, Nov 9, 2010
Filed:
Jul 31, 2008
Appl. No.:
12/183643
Inventors:
Peng Xu - San Jose CA, US
Assignee:
Monolithic Power Systems, Inc. - San Jose CA
International Classification:
G05F 1/613
US Classification:
323224, 323282
Abstract:
A switching regulator circuit is provided for operation as a switching device in a switching mode and as a passive device in a passive mode. A controller is provided for operating the circuit in a switching mode and a passive mode. Additionally, a single transistor is provided for operating as a switching device in the switching mode and for further operating as a passive device in the passive mode.

Switching Regulator With Automatic Multi Mode Conversion

US Patent:
7944191, May 17, 2011
Filed:
Oct 14, 2005
Appl. No.:
11/250215
Inventors:
Peng Xu - Santa Clara CA, US
Assignee:
Monolithic Power Systems, Inc. - San Jose CA
International Classification:
G05F 1/618
US Classification:
323259, 323225
Abstract:
Methods and apparatus are disclosed for efficient switching regulators that adapt automatically to, and operate with, input voltages that are above, below, or equal to the output voltage. The disclosed switching regulators demonstrate advantages of both buck and boost converters at high efficiency.

Discriminative Training In Machine Learning

US Patent:
8027938, Sep 27, 2011
Filed:
Mar 26, 2008
Appl. No.:
12/055967
Inventors:
Peng Xu - San Jose CA, US
Assignee:
Google Inc. - Mountain View CA
International Classification:
G06F 15/18
US Classification:
706 12
Abstract:
Systems, methods, and apparatuses including computer program products for machine learning are provided. A method is provided that includes distributing a parameterized model to each worker of a hierarchy of workers, the parameterized model including a plurality of feature functions and corresponding model parameters, processing a portion of training data at each worker of the plurality of workers according to the parameterized model to calculate updates to model parameters, for each worker at a lowest level of the hierarchy of workers, sending the calculated updates to a next higher level worker, for each other worker in the hierarchy of workers, combining updates of the respective worker with updates received from one or more lower level workers, collecting all updates from the workers at a master to generate real updates to the model parameters, and generating an updated model using the real updates to the model parameters.

Pulse Frequency Modulation Methods And Circuits

US Patent:
8058859, Nov 15, 2011
Filed:
Aug 30, 2005
Appl. No.:
11/216435
Inventors:
Peng Xu - Santa Clara CA, US
Assignee:
Monolithic Power Systems, Inc. - San Jose CA
International Classification:
G05F 1/575
US Classification:
323284
Abstract:
A technique for voltage regulation involves switching between light load mode and PWM mode based on load conditions. Advantageously, this improves efficiency at light load. In an embodiment, error amplifier output is used to determine whether load is light. When light load is detected, extend PWM off time until the output voltage reaches a load threshold.

Possible Relatives

David Xu  Dawei H Xu  Da Z Xu  Dan Xu  Daniel B Xu  Denise Xu  Danny Xu  Peng Lee  Peng Lin  Peng Liu 

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