TWI363484B - - Google Patents
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- Publication number
- TWI363484B TWI363484B TW094117490A TW94117490A TWI363484B TW I363484 B TWI363484 B TW I363484B TW 094117490 A TW094117490 A TW 094117490A TW 94117490 A TW94117490 A TW 94117490A TW I363484 B TWI363484 B TW I363484B
- Authority
- TW
- Taiwan
- Prior art keywords
- voltage
- output
- signal
- pwm
- input
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims description 55
- 239000000872 buffer Substances 0.000 claims description 35
- 230000007717 exclusion Effects 0.000 claims description 13
- 230000003247 decreasing effect Effects 0.000 claims description 7
- 230000002194 synthesizing effect Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 29
- 230000005855 radiation Effects 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 101150046432 Tril gene Proteins 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
- H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/16—Modifications for eliminating interference voltages or currents
- H03K17/161—Modifications for eliminating interference voltages or currents in field-effect transistor switches
- H03K17/162—Modifications for eliminating interference voltages or currents in field-effect transistor switches without feedback from the output circuit to the control circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
- H03K17/6871—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor
- H03K17/6872—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor using complementary field-effect transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/08—Duration or width modulation ; Duty cycle modulation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
- H03K17/66—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will
- H03K17/661—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals
- H03K17/662—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals each output circuit comprising more than one controlled bipolar transistor
- H03K17/663—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals each output circuit comprising more than one controlled bipolar transistor using complementary bipolar transistors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
- Dc-Dc Converters (AREA)
- Inverter Devices (AREA)
- Control Of Linear Motors (AREA)
- Optical Recording Or Reproduction (AREA)
- Control Of Electric Motors In General (AREA)
- Optical Head (AREA)
- Parts Printed On Printed Circuit Boards (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004158319A JP3969590B2 (ja) | 2004-05-27 | 2004-05-27 | コイル負荷駆動回路及び光ディスク装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200607222A TW200607222A (en) | 2006-02-16 |
| TWI363484B true TWI363484B (enExample) | 2012-05-01 |
Family
ID=35451204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW094117490A TW200607222A (en) | 2004-05-27 | 2005-05-27 | Coil load drive circuit and optical disk device |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7630616B2 (enExample) |
| JP (1) | JP3969590B2 (enExample) |
| KR (1) | KR101113521B1 (enExample) |
| CN (1) | CN100521500C (enExample) |
| TW (1) | TW200607222A (enExample) |
| WO (1) | WO2005117250A1 (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008004322A1 (en) * | 2006-07-07 | 2008-01-10 | Panasonic Corporation | Brushless motor drive circuit and motor having the same |
| JP2010003147A (ja) * | 2008-06-20 | 2010-01-07 | Fujitsu Ltd | 温度制御装置および光伝送装置 |
| KR101919400B1 (ko) | 2012-07-12 | 2018-11-19 | 삼성전자 주식회사 | 모터 구동 신호 생성 시스템 및 방법, 반도체 장치, 전자 장치 및 그 진동 조절 방법 |
| WO2023173241A1 (zh) * | 2022-03-14 | 2023-09-21 | 深圳市汇顶科技股份有限公司 | D类放大器及相关芯片和电子装置 |
| CN114421906B (zh) * | 2022-03-14 | 2023-05-02 | 深圳市汇顶科技股份有限公司 | D类放大器及相关芯片和电子装置 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4153853A (en) * | 1976-07-07 | 1979-05-08 | Villeneuve Dail A De | DC motor speed controller |
| JPS608541B2 (ja) * | 1976-09-28 | 1985-03-04 | ソニー株式会社 | リール制御装置 |
| IT1156505B (it) * | 1982-09-01 | 1987-02-04 | Olivetti & Co Spa | Dispositivo per controllare la velocita ed il posizionamento di un motore elettrico |
| US4772994A (en) * | 1987-09-10 | 1988-09-20 | Nishimu Electronics Industries, Co., Ltd. | Power source using high-frequency phase control |
| JP3446220B2 (ja) * | 1992-05-21 | 2003-09-16 | ソニー株式会社 | モータ駆動装置 |
| US5450521A (en) * | 1994-08-03 | 1995-09-12 | Sunpower, Inc. | Pulse width modulator |
| US5869944A (en) * | 1995-02-16 | 1999-02-09 | Sony Corporation | Motor driving apparatus |
| JP3723369B2 (ja) | 1999-02-19 | 2005-12-07 | 富士通株式会社 | モータ駆動装置の調整方法及びモータ駆動装置並びに情報記憶装置 |
| JP3786170B2 (ja) | 1999-11-26 | 2006-06-14 | ローム株式会社 | 誘導性負荷駆動回路 |
| JP2003164194A (ja) | 2001-11-21 | 2003-06-06 | Sharp Corp | インクジェット記録装置における直流モータ駆動装置 |
| US6801028B2 (en) * | 2002-11-14 | 2004-10-05 | Fyre Storm, Inc. | Phase locked looped based digital pulse converter |
| TW200814533A (en) * | 2006-09-11 | 2008-03-16 | Beyond Innovation Tech Co Ltd | Apparatus for pulse width modulation and circuit and method for controlling thereof |
-
2004
- 2004-05-27 JP JP2004158319A patent/JP3969590B2/ja not_active Expired - Fee Related
-
2005
- 2005-05-26 KR KR1020067024759A patent/KR101113521B1/ko not_active Expired - Fee Related
- 2005-05-26 US US11/569,638 patent/US7630616B2/en not_active Expired - Fee Related
- 2005-05-26 WO PCT/JP2005/009608 patent/WO2005117250A1/ja not_active Ceased
- 2005-05-26 CN CNB2005800169625A patent/CN100521500C/zh not_active Expired - Fee Related
- 2005-05-27 TW TW094117490A patent/TW200607222A/zh not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US20080019678A1 (en) | 2008-01-24 |
| TW200607222A (en) | 2006-02-16 |
| CN100521500C (zh) | 2009-07-29 |
| JP2005341736A (ja) | 2005-12-08 |
| JP3969590B2 (ja) | 2007-09-05 |
| KR101113521B1 (ko) | 2012-03-13 |
| US7630616B2 (en) | 2009-12-08 |
| WO2005117250A1 (ja) | 2005-12-08 |
| KR20070021222A (ko) | 2007-02-22 |
| CN1957525A (zh) | 2007-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |