Power supply circuit that is stable against sudden load change

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7141939
SERIAL NO

10896080

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Abstract

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A power supply circuit for supplying power to a load includes an antenna which receives electric power, a rectifier coupled to the antenna and configured to convert an alternating voltage supplied from the antenna into a direct-current voltage, a voltage step-down circuit which steps down the direct-current voltage to generate an output voltage for provision to the load, a regulator which controls a resistance connected between the output voltage and a ground voltage in parallel with the load, thereby controlling a voltage level of the output voltage.

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Patent Owner(s)

Patent OwnerAddress
FUJITSU SEMICONDUCTOR LIMITED2-10-23 SHIN-YOKOHAMA KOHOKU-KU YOKOHAMA-SHI KANAGAWA 222-0033

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fueki, Shunsuke Kawasaki, JP 17 458
Isobe, Masayoshi Hino, JP 4 36
Kikuchi, Takeshi Hino, JP 127 775
Nagasawa, Takayuki Kawasaki, JP 55 247
Okubo, Hiroshi Hino, JP 33 569
Radecki, Andrzej Tokyo, JP 8 34
Teramoto, Toshiyuki Kawasaki, JP 3 64
Yajima, Shinji Kawasaki, JP 3 39

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