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JPH07123775A Expired / Lapsed JP ⏱️ 0.0 years remaining

Rotor position signal generation circuit for sensorless brushless motor and drive circuit for sensorless brushless motor

Assignee: Yamamoto Electric Corp
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Filing: 1993-10-29
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Granted: —
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Expires: 2013-10-29
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Abstract

Abstract Translated from Japanese (57)【要約】 【目的】 安価で簡単な構成で回転子位置信号を発生し 得るセンサレスブラシレスモータの回転子位置信号発生 回路及び駆動回路を提供する。 【構成】 センサレスブラシレスモータの電機子巻線の 各対の相電圧同志を比較器により比較することにより、 各比較器よりセンサレスブラシレスモータの回転子位置 信号を得る。また、電機子巻線の各々にフィルタを接続 し、該フィルタの各対について該フィルタから得られる 相電圧同志を比較器により比較することにより、より正 確に回転子位置信号を得る。 (57) [Summary] [PROBLEMS] To provide a rotor position signal generation circuit and a drive circuit of a sensorless brushless motor capable of generating a rotor position signal with an inexpensive and simple structure. [Configuration] By comparing the phase voltage of each pair of armature windings of a sensorless brushless motor with a comparator, A rotor position signal of the sensorless brushless motor is obtained from each comparator. Further, a rotor position signal is obtained more accurately by connecting a filter to each of the armature windings and comparing the phase voltage obtained from the filter for each pair of the filters with a comparator.

Inventors

  • 👤 Katsuji Soeda
  • 👤 勝二 添田
  • 👤 Shinji Nemoto
  • 👤 伸治 根本

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-10-30 20:57
CPC Classifications
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Claims Analysis

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References Cited (Backward Citations)

JPH01126192A Cited

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