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TW364216B - Piezoelectric transformer and control circuit and driving method thereof - Google Patents

Piezoelectric transformer and control circuit and driving method thereof

Info

Publication number
TW364216B
TW364216B TW086112077A TW86112077A TW364216B TW 364216 B TW364216 B TW 364216B TW 086112077 A TW086112077 A TW 086112077A TW 86112077 A TW86112077 A TW 86112077A TW 364216 B TW364216 B TW 364216B
Authority
TW
Taiwan
Prior art keywords
piezoelectric transformer
frequency
controlled
control circuit
driving method
Prior art date
Application number
TW086112077A
Other languages
English (en)
Inventor
Shimada Yasuhei
Shingo Kawashima
Original Assignee
Nec Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nec Corp filed Critical Nec Corp
Application granted granted Critical
Publication of TW364216B publication Critical patent/TW364216B/zh

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/802—Circuitry or processes for operating piezoelectric or electrostrictive devices not otherwise provided for, e.g. drive circuits
    • H10N30/804—Circuitry or processes for operating piezoelectric or electrostrictive devices not otherwise provided for, e.g. drive circuits for piezoelectric transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Dc-Dc Converters (AREA)
TW086112077A 1996-08-23 1997-08-22 Piezoelectric transformer and control circuit and driving method thereof TW364216B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8222335A JP2845209B2 (ja) 1996-08-23 1996-08-23 圧電トランスインバータ及びその制御回路並びに駆動方法

Publications (1)

Publication Number Publication Date
TW364216B true TW364216B (en) 1999-07-11

Family

ID=16780740

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086112077A TW364216B (en) 1996-08-23 1997-08-22 Piezoelectric transformer and control circuit and driving method thereof

Country Status (4)

Country Link
US (1) US5923546A (zh)
JP (1) JP2845209B2 (zh)
KR (1) KR100268507B1 (zh)
TW (1) TW364216B (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI396469B (zh) * 2002-09-04 2013-05-11 Samsung Display Co Ltd 液晶顯示器之換流器

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JP3269460B2 (ja) * 1998-07-29 2002-03-25 日本電気株式会社 圧電トランス駆動回路及び駆動方法
JP3061050B1 (ja) * 1999-04-16 2000-07-10 株式会社村田製作所 圧電トランスインバ―タ
US6946806B1 (en) 2000-06-22 2005-09-20 Microsemi Corporation Method and apparatus for controlling minimum brightness of a fluorescent lamp
JP3425716B2 (ja) * 1999-04-22 2003-07-14 株式会社村田製作所 放電灯装置
WO2001014945A1 (en) 1999-08-20 2001-03-01 Texas Instruments Incorporated Control circuit for piezo transformer based fluorescent lamp power supplies
US6154375A (en) * 1999-10-08 2000-11-28 Philips Electronics North America Corporation Soft start scheme for resonant converters having variable frequency control
JP2001159881A (ja) * 1999-12-02 2001-06-12 Nec Corp 液晶表示コントローラ並びに液晶表示装置
US6307765B1 (en) 2000-06-22 2001-10-23 Linfinity Microelectronics Method and apparatus for controlling minimum brightness of a fluorescent lamp
JP3788214B2 (ja) * 2000-08-15 2006-06-21 株式会社村田製作所 放電管点灯用高圧電源装置の異常保護回路
EP1220435A3 (en) * 2000-12-21 2003-07-09 Alcatel Switched power converter
JP2002203689A (ja) * 2000-12-28 2002-07-19 Matsushita Electric Ind Co Ltd 圧電トランスを用いた冷陰極蛍光管の駆動装置及びその駆動方法
US6545513B2 (en) * 2001-05-17 2003-04-08 Denso Corporation Electric load drive apparatus
US6639367B2 (en) 2002-02-27 2003-10-28 Texas Instruments Incorporated Control circuit employing preconditioned feedback amplifier for initializing VCO operating frequency
TW200425628A (en) * 2002-11-25 2004-11-16 Matsushita Electric Ind Co Ltd Driving method and driving circuit for piezoelectric transformer, cold-cathode tube light-emitting apparatus, liquid crystal panel and device with built-in liquid crystal panel
US6979959B2 (en) 2002-12-13 2005-12-27 Microsemi Corporation Apparatus and method for striking a fluorescent lamp
US7187139B2 (en) 2003-09-09 2007-03-06 Microsemi Corporation Split phase inverters for CCFL backlight system
US7183727B2 (en) 2003-09-23 2007-02-27 Microsemi Corporation Optical and temperature feedbacks to control display brightness
US7468722B2 (en) 2004-02-09 2008-12-23 Microsemi Corporation Method and apparatus to control display brightness with ambient light correction
WO2005099316A2 (en) 2004-04-01 2005-10-20 Microsemi Corporation Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system
US7755595B2 (en) 2004-06-07 2010-07-13 Microsemi Corporation Dual-slope brightness control for transflective displays
WO2006003626A1 (en) * 2004-07-02 2006-01-12 Koninklijke Philips Electronics N.V. Method and circuit for driving back a light emitter of a display apparatus
KR100760941B1 (ko) * 2004-09-23 2007-09-21 엘지.필립스 엘시디 주식회사 백라이트 유닛 및 그의 구동 방법
WO2006106578A1 (ja) 2005-03-31 2006-10-12 Fujitsu Limited 交流電源装置
KR101126402B1 (ko) * 2005-06-13 2012-03-28 엘지디스플레이 주식회사 액정표시장치 및 그의 구동방법
US7414371B1 (en) 2005-11-21 2008-08-19 Microsemi Corporation Voltage regulation loop with variable gain control for inverter circuit
US20090251063A1 (en) * 2006-06-29 2009-10-08 Seiji Namiki Dimmer noise reducing circuit of piezoelectric transformer
US7569998B2 (en) 2006-07-06 2009-08-04 Microsemi Corporation Striking and open lamp regulation for CCFL controller
JPWO2008012942A1 (ja) * 2006-07-26 2009-12-17 株式会社タムラ製作所 圧電トランスの調光騒音低減回路
DE102006035071A1 (de) * 2006-07-28 2008-01-31 Minebea Co., Ltd., Kitasaku Vorrichtung und Verfahren zur Einstellung der Helligkeit einer Hintergrundbeleuchtung
JP2008192492A (ja) * 2007-02-06 2008-08-21 Taiyo Yuden Co Ltd ランプ駆動制御装置および方法およびこれに組み込まれる信号処理回路および液晶バックライト駆動装置
US8111003B2 (en) * 2007-11-19 2012-02-07 Samsung Electronics Co., Ltd. Backlight assembly, display apparatus having the same and control method thereof
US8093839B2 (en) 2008-11-20 2012-01-10 Microsemi Corporation Method and apparatus for driving CCFL at low burst duty cycle rates
JP4902708B2 (ja) * 2009-08-27 2012-03-21 株式会社沖データ 電源装置及び画像形成装置
JP5585045B2 (ja) * 2009-10-22 2014-09-10 セイコーエプソン株式会社 放電灯点灯装置、プロジェクター、及び放電灯の駆動方法
US8305200B2 (en) 2009-12-02 2012-11-06 Analog Devices, Inc. Reactive networks to reduce acoustic noise and ensure maximum efficiencies in driving piezoelectric elements in haptic applications
DE102010029177A1 (de) * 2010-05-20 2011-11-24 Semikron Elektronik Gmbh & Co. Kg Treiber für ein Leistungshalbleitermodul
GB2480822B (en) * 2010-06-01 2017-05-17 Global Inkjet Systems Ltd Driver circuit
EP2755315A1 (en) 2013-01-11 2014-07-16 Alstom Technology Ltd Hybrid modular converter
EP2887529A1 (en) 2013-12-23 2015-06-24 Alstom Technology Ltd Modular multilevel converter leg with flat-top PWM modulation, converter and hybrid converter topologies
US9577516B1 (en) * 2016-02-18 2017-02-21 Advanced Energy Industries, Inc. Apparatus for controlled overshoot in a RF generator
CN109075249A (zh) 2016-04-25 2018-12-21 皇家飞利浦有限公司 Eap致动器和驱动方法
EP3367452A1 (en) * 2017-02-28 2018-08-29 Koninklijke Philips N.V. Electroactive material actuator and drive method
US10991498B2 (en) 2017-09-19 2021-04-27 Paccar Inc Sine pulse actuation, and associated systems and methods
EP3800772B1 (en) * 2019-10-04 2022-11-30 Hamilton Sundstrand Corporation Damper for power train

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JPH0245432B2 (ja) * 1985-01-31 1990-10-09 Pfu Ltd Sofuto*sutaatohoshiki
US5548189A (en) * 1992-03-26 1996-08-20 Linear Technology Corp. Fluorescent-lamp excitation circuit using a piezoelectric acoustic transformer and methods for using same
EP0665600B1 (en) * 1994-01-27 1999-07-21 Hitachi Metals, Ltd. Discharge tube driving device and piezoelectric transformer therefor
JPH0810767A (ja) * 1994-06-27 1996-01-16 Nippon Intec Kk 電解水生成機用電源
JP2751842B2 (ja) * 1994-10-05 1998-05-18 日本電気株式会社 圧電トランスの駆動回路および駆動方法
JP2757810B2 (ja) * 1995-03-08 1998-05-25 日本電気株式会社 電源装置
JP2718392B2 (ja) * 1995-03-28 1998-02-25 日本電気株式会社 圧電トランスの駆動回路
JP3119154B2 (ja) * 1995-07-06 2000-12-18 日立金属株式会社 圧電トランス及びそれを用いた電力変換装置
EP0758159B1 (en) * 1995-08-07 2002-04-10 Nec Corporation Converter wherein a piezoelectric transformer input signal is frequency modulated by a pulse width modulated signal
JPH0973990A (ja) * 1995-09-04 1997-03-18 Minebea Co Ltd 圧電トランスを使用した冷陰極管点灯装置
JP2778554B2 (ja) * 1995-10-12 1998-07-23 日本電気株式会社 圧電トランス駆動回路

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI396469B (zh) * 2002-09-04 2013-05-11 Samsung Display Co Ltd 液晶顯示器之換流器
TWI418249B (zh) * 2002-09-04 2013-12-01 Samsung Display Co Ltd 液晶顯示器之換流器
US8723780B2 (en) 2002-09-04 2014-05-13 Samsung Display Co., Ltd. Inverter for liquid crystal display
US9082369B2 (en) 2002-09-04 2015-07-14 Samsung Display Co., Ltd. Inverter for liquid crystal display

Also Published As

Publication number Publication date
KR100268507B1 (ko) 2000-10-16
JPH1066353A (ja) 1998-03-06
KR19980018927A (ko) 1998-06-05
US5923546A (en) 1999-07-13
JP2845209B2 (ja) 1999-01-13

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees