JP2010288425A5 - - Google Patents

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Publication number
JP2010288425A5
JP2010288425A5 JP2009142561A JP2009142561A JP2010288425A5 JP 2010288425 A5 JP2010288425 A5 JP 2010288425A5 JP 2009142561 A JP2009142561 A JP 2009142561A JP 2009142561 A JP2009142561 A JP 2009142561A JP 2010288425 A5 JP2010288425 A5 JP 2010288425A5
Authority
JP
Japan
Prior art keywords
motor
voltage
supply line
transistor
transistors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2009142561A
Other languages
English (en)
Japanese (ja)
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JP2010288425A (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP2009142561A priority Critical patent/JP2010288425A/ja
Priority claimed from JP2009142561A external-priority patent/JP2010288425A/ja
Priority to US12/730,846 priority patent/US8228629B2/en
Publication of JP2010288425A publication Critical patent/JP2010288425A/ja
Publication of JP2010288425A5 publication Critical patent/JP2010288425A5/ja
Pending legal-status Critical Current

Links

JP2009142561A 2009-06-15 2009-06-15 モータ制御装置及びディスク駆動装置 Pending JP2010288425A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009142561A JP2010288425A (ja) 2009-06-15 2009-06-15 モータ制御装置及びディスク駆動装置
US12/730,846 US8228629B2 (en) 2009-06-15 2010-03-24 Reaction control charge pump, capacitor, and transistor to power lead

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009142561A JP2010288425A (ja) 2009-06-15 2009-06-15 モータ制御装置及びディスク駆動装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2013244501A Division JP2014068530A (ja) 2013-11-27 2013-11-27 ディスク駆動装置

Publications (2)

Publication Number Publication Date
JP2010288425A JP2010288425A (ja) 2010-12-24
JP2010288425A5 true JP2010288425A5 (enExample) 2012-07-26

Family

ID=43306234

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009142561A Pending JP2010288425A (ja) 2009-06-15 2009-06-15 モータ制御装置及びディスク駆動装置

Country Status (2)

Country Link
US (1) US8228629B2 (enExample)
JP (1) JP2010288425A (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5549119B2 (ja) * 2009-05-31 2014-07-16 日本テキサス・インスツルメンツ株式会社 ディスク駆動装置
IT1403281B1 (it) * 2010-12-23 2013-10-17 St Microelectronics Srl Apparato per la gestione di un motore rotante ed un carico annesso durante l'assenza di alimentazione esterna.
US9142248B2 (en) 2013-04-05 2015-09-22 Rohm Co., Ltd. Motor drive device, magnetic disk storage device, and electronic device
US9054607B2 (en) 2013-04-05 2015-06-09 Rohm Co., Ltd. Motor drive device, magnetic disk storage device, and electronic device
US9093106B2 (en) 2013-04-05 2015-07-28 Rohm Co., Ltd. Motor drive device, magnetic disk storage device, and electronic appliance
US9105290B2 (en) * 2013-12-11 2015-08-11 Seagate Technology Llc Discontinuous charge/discharge power source for retract application
DE102014202771A1 (de) * 2014-02-14 2015-08-20 Sirona Dental Systems Gmbh Steuerschaltung und Regelungsverfahren für Synchronmaschine
JP6619000B2 (ja) * 2015-06-23 2019-12-11 株式会社Ｆｕｊｉ 作業ユニット用電源装置
CN113437918B (zh) * 2021-07-02 2023-06-27 深圳鹏行智能研究有限公司 电机驱动电路
IT202200019116A1 (it) 2022-09-19 2024-03-19 St Microelectronics Srl Procedimento di funzionamento di unità a disco rigido, circuito di controllo, unità a disco rigido e dispositivo elaboratore corrispondenti

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866554A (en) * 1986-11-06 1989-09-12 Peripheral Technology, Inc. Automatic head retract system for disk drive
USRE34399E (en) * 1987-02-26 1993-10-05 Micropolis Corporation Winchester disk drive motor circuitry
US4831469A (en) * 1987-07-29 1989-05-16 International Business Machines Corporation Disk drive head retract and motor braking method and apparatus
JP3028515B2 (ja) * 1997-06-30 2000-04-04 インターナショナル・ビジネス・マシーンズ・コーポレイション ヘッド機構制御装置およびディスクドライブ装置ならびにヘッドアンロード制御方法
US6081400A (en) * 1997-11-14 2000-06-27 Castlewood Systems, Inc. Power-off method and device for electronic storage apparatus
US6060943A (en) * 1998-04-14 2000-05-09 Nmb (Usa) Inc. Circuit simulating a diode
JP4651225B2 (ja) * 2001-05-23 2011-03-16 ルネサスエレクトロニクス株式会社 磁気ディスク記憶装置および磁気ディスク記憶装置の制御方法
JP4138402B2 (ja) * 2002-08-26 2008-08-27 株式会社ルネサステクノロジ 磁気ディスク記憶システム
JP4199484B2 (ja) * 2002-06-06 2008-12-17 株式会社ルネサステクノロジ 磁気ディスク記憶システム
JP4180357B2 (ja) * 2002-11-25 2008-11-12 株式会社ルネサステクノロジ 磁気ディスク記憶システム
JP2005071513A (ja) * 2003-08-27 2005-03-17 Matsushita Electric Ind Co Ltd 磁気ディスク装置
US20100067140A1 (en) * 2008-09-15 2010-03-18 Masaki Yamashita Disk-Drive Read/Write Head Retraction Velocity Control

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