Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
位相ずれ検出装置、モータ駆動装置、およびブラシレスモータ、並びに位相ずれ検出方法
Document Type and Number:
Japanese Patent JP5824660
Kind Code:
B2
Abstract:
A phase-shift detection circuit detects a phase shift in motor driving, using pulse-shaped position detection signal Rd and measurement signal Ms. The position detection signal is based on sensor signal Hs from a position sensor disposed in a motor. The measurement signal is based on the induced voltage from windings. The phase-shift detection circuit includes a level difference calculator and a phase-shift calculator. The level difference calculator calculates a level difference between the level of measurement signal Ms at a rising timing of position detection signal Rd and the level of measurement signal Ms at a falling timing thereof. The phase-shift calculator calculates the amount of phase shifts based on the level difference.

More Like This:
JP3385617INDUSTRIAL APPLICABILITY: A method of starting a permanent magnet type synchronous motor with a rotation position detector and an electric motor control device.
JPWO2020090596Position estimation device and position estimation method
JPS58121190【考案の名称】無整流子モ-タの回転制御装置
Inventors:
Kenichi Kishimoto
Mineaki Isoda
Daisuke Sato
Ryuta Sasaki
Application Number:
JP2012524413A
Publication Date:
November 25, 2015
Filing Date:
June 30, 2011
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
H02P6/16; H02P6/18; H02P27/06
Domestic Patent References:
JP2003333884A2003-11-21
JP2005110453A2005-04-21
JP2010063291A2010-03-18
JP2007166735A2007-06-28
JP2005039991A2005-02-10
Attorney, Agent or Firm:
Kentaro Fujii
Kenji Kamada
Hiroo Maeda



 
Previous Patent: 縦型電気掃除機

Next Patent: FLOW DIVISION VALVE