Power management systems
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 8, 2013
Grant Date -
Jun 30, 2011
app pub date -
Mar 7, 2011
filing date -
Dec 20, 2007
priority date (Note) -
Expired
status (Latency Note)
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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.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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O2MICRO INTERNATIONAL LIMITED | FRAND CAYMAN |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Caraghiorghiopol, Eftimie | San Jose, US | 6 | 164 |
# of filed Patents : 6 Total Citations : 164 | |||
Hartular, Alexandru | San Jose, US | 16 | 364 |
# of filed Patents : 16 Total Citations : 364 | |||
Lipcsei, Laszlo | Campbell, US | 68 | 613 |
# of filed Patents : 68 Total Citations : 613 | |||
Niculae, Marian | San Jose, US | 39 | 649 |
# of filed Patents : 39 Total Citations : 649 |
Cited Art Landscape
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Patent Citation Ranking
- 5 Citation Count
- H02J Class
- 2.70 % this patent is cited more than
- 12 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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