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Eftimie C Caraghiorghiopol

from San Jose, CA
Age ~79
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Also known as:
Eftimie Caraghiorghiopal Gc, Eftimie C Caraghiorgh, Eftimie P, Eftimie R
Phone and address:
1488 Triborough Ln, San Jose, CA 95126
Related to:
Georgeta M Caraghiorghiopol, 78Aurel Caraghiorghiopol, 49Yuehong Ge, 37
Connected to:
Leslie P Caragiulo, 67Anthony J Caraglio, 46Kylie A Caraher, 49Jennifer L Caraker, 52Christina Caram, 40Ivette Caram, 40Larry L Caram, 51John B Caramagna, 87Leila Caramad, 47Ashley Caraman

Eftimie Caraghiorghiopol Phones & Addresses

  • 1488 Triborough Ln, San Jose, CA 95126
  • Antelope, CA

Work

Company: O2micro Position: Application manager

Skills

Semiconductors • Ic • Mixed Signal • Power Management • Analog • Cmos • Soc • Analog Circuit Design • Asic • Management

Industries

Computer Hardware

Resumes

Resumes

Eftimie Caraghiorghiopol Photo 1

Senior Application Manager

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Location:
San Francisco, CA
Industry:
Computer Hardware
Work:
O2Micro
Application manager
Skills:
Semiconductors
Ic
Mixed Signal
Power Management
Analog
Cmos
Soc
Analog Circuit Design
Asic
Management

Publications

Us Patents

Power Management Systems With Multiple Power Sources

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US Patent:
7969043, Jun 28, 2011
Filed:
Nov 3, 2008
Appl. No.:
12/290723
Inventors:
Eftimie Caraghiorghiopol - San Jose CA, US
Constantin Spiridon - San Jose CA, US
Tzu-Ching Yang - Santa Clara CA, US
Assignee:
O2 Micro, Inc. - Santa Clara CA
International Classification:
H02J 1/00
US Classification:
307 82
Abstract:
An electronic system includes a plurality of primary power sources operable for powering a load and charging a secondary power source, and a power management unit coupled to the plurality of primary power sources and the secondary power source. The power management unit is operable for selectively directing power of each of the primary power sources to the load according to a power requirement of the load. The power management unit is further operable for directing power of the secondary power source to the load if the power requirement of the load exceeds a total power capacity of the plurality of primary power sources.

Circuits And Methods For Battery Charging

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US Patent:
7999516, Aug 16, 2011
Filed:
Jun 28, 2010
Appl. No.:
12/824411
Inventors:
Alexandru Hartular - San Jose CA, US
Eftimie Caraghiorghiopol - San Jose CA, US
Dan Simon - Santa Clara CA, US
Assignee:
02Micro International Limited - Georgetown, Grand Cayman
International Classification:
H02J 7/04
H02J 7/16
H02M 3/335
US Classification:
320139, 320152, 320159, 363 74, 363 19
Abstract:
Circuits and methods for battery charging are disclosed. In one embodiment, the battery charging circuit comprises an AC to DC converter, a charging control switch, and a charger controller. The AC to DC converter provides a charging power to a battery pack. The charging control switch is coupled between the AC to DC converter and the battery pack. The charging control switch transfers the charging power to the battery pack. The charger controller detects a battery status of the battery pack and controls the charging control switch to charge the battery pack in a continuous charging mode or a pulse charging mode according to the battery status. The charger controller also controls the AC to DC converter to regulate the charging power according to the battery status.

Converter Controller

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US Patent:
8289731, Oct 16, 2012
Filed:
Jun 5, 2007
Appl. No.:
11/810472
Inventors:
Constantin Spiridon - San Jose CA, US
Dan Simion - Santa Clara CA, US
Eftimie Caraghiorghiopol - San Jose CA, US
Assignee:
O2Micro Inc. - Santa Clara CA
International Classification:
H02M 3/335
H02M 3/338
G05F 1/30
US Classification:
363 2112, 363 2116, 323288
Abstract:
A converter controller is disclosed. In one embodiment, a controller for a flyback converter includes a converter and a flyback controller. The converter is coupled to the flyback converter for receiving an auxiliary voltage and for generating a constant power voltage. The flyback controller is powered by the constant power voltage for controlling an output voltage of the flyback converter. Furthermore, the flyback converter comprises a transformer with a primary side and a secondary side. The output voltage and the auxiliary voltage are produced at the transformer.

Power Management Systems

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US Patent:
8350532, Jan 8, 2013
Filed:
Mar 7, 2011
Appl. No.:
13/042267
Inventors:
Eftimie Caraghiorghiopol - San Jose CA, US
Laszlo Lipcsei - Campbell CA, US
Alexandru Hartular - San Jose CA, US
Marian Niculae - San Jose CA, US
Assignee:
O2Micro Inc. - Santa Clara CA
International Classification:
H02J 7/04
US Classification:
320145, 320140
Abstract:
A power management system includes a first switch, a second switch, and a controller coupled to the first and second switches. The first switch has a first transfer terminal. The second switch has a second transfer terminal. The controller controls power conversion by turning on a third switch periodically. The first and second transfer terminals and a third transfer terminal of the third switch are coupled to a common node. The resistance between the first transfer terminal and the common node, the resistance between the second transfer terminal and the common node, and the resistance between the third transfer terminal and the common node are substantially equal to zero.

Circuits And Methods For Battery Charging

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US Patent:
20080197811, Aug 21, 2008
Filed:
Sep 7, 2007
Appl. No.:
11/899913
Inventors:
Alex Hartular - San Jose CA, US
Eftimie Caraghiorghiopol - San Jose CA, US
Dan Simion - Santa Clara CA, US
International Classification:
H02J 7/04
H01M 10/44
US Classification:
320141
Abstract:
Circuits and methods for battery charging are disclosed. In one embodiment, the battery charging circuit comprises an AC to DC converter, a charging control switch, and a charger controller. The AC to DC converter provides a charging power to a battery pack. The charging control switch is coupled between the AC to DC converter and the battery pack. The charging control switch transfers the charging power to the battery pack. The charger controller detects a battery status of the battery pack and controls the charging control switch to charge the battery pack in a continuous charging mode or a pulse charging mode according to the battery status. The charger controller also controls the AC to DC converter to regulate the charging power according to the battery status.
Control profile
Eftimie C Caraghiorghiopol from San Jose, CA, age ~79 Get Report