US Patent No: 5,886,485

Number of patents in Portfolio can not be more than 2000

Sensorless BLDC motor and a manufacturing method thereof

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Importance

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Abstract

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Disclosed is a control system for detecting a rotor position in a sensorless brushless direct-current (BLDC) motor including a switching element for changing current flow direction between each phase and for performing a switching operation; a dividing circuit for dividing counter-electromotive force generated in an open phase when the switching element is operating; and an A/D converter for converting analogue values of the dividing circuit into digital values.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SAMSUNG ELECTRONICS CO., LTD.SUWON-SI GYEONGGI-DO53008

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jang, Hyun-Gil Suwon, KR 1 4

Cited Art Landscape

Patent Info (Count) # Cites Year
 
ANALOG DEVICES, INC. (1)
5,635,810 Control system for a permanent magnet synchronous motor 38 1995
 
Other [Check patent profile for assignment information] (1)
5,134,349 Two-phase brushless dc motor controller 24 1991

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
INFINEON TECHNOLOGIES AG (2)
6,462,495 Controlling a brushless DC motor 2 2000
6,661,192 Controlling a brushless DC motor 18 2002
 
ATMEL CORPORATION (1)
7,183,734 Sensorless control of two-phase brushless DC motor 28 2005
 
LG ELECTRONICS INC. (1)
6,420,844 Method for detecting position of brushless direct current motor 0 2000