TW200729725A - Triangular-wave generating circuit, and inverter, light emitting device and liquid crystal television using the circuit - Google Patents

Triangular-wave generating circuit, and inverter, light emitting device and liquid crystal television using the circuit

Info

Publication number
TW200729725A
TW200729725A TW095142467A TW95142467A TW200729725A TW 200729725 A TW200729725 A TW 200729725A TW 095142467 A TW095142467 A TW 095142467A TW 95142467 A TW95142467 A TW 95142467A TW 200729725 A TW200729725 A TW 200729725A
Authority
TW
Taiwan
Prior art keywords
circuit
vout
charge
output voltage
threshold voltage
Prior art date
Application number
TW095142467A
Other languages
English (en)
Inventor
Kenichi Fukumoto
Original Assignee
Rohm Co Ltd
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 Rohm Co Ltd filed Critical Rohm Co Ltd
Publication of TW200729725A publication Critical patent/TW200729725A/zh

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48Conversion 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
    • H02M7/53Conversion 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
    • H02M7/537Conversion 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
    • H02M7/5387Conversion 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 in a bridge configuration
    • H02M7/53871Conversion 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 in a bridge configuration with automatic control of output voltage or current
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K4/00Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48Conversion 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
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/26Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/2806Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without electrodes in the vessel, e.g. surface discharge lamps, electrodeless discharge lamps
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/26Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • H05B41/2821Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage
    • H05B41/2822Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage using specially adapted components in the load circuit, e.g. feed-back transformers, piezoelectric transformers; using specially adapted load circuit configurations
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Liquid Crystal Display Device Control (AREA)
TW095142467A 2005-11-16 2006-11-16 Triangular-wave generating circuit, and inverter, light emitting device and liquid crystal television using the circuit TW200729725A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005332203A JP4685602B2 (ja) 2005-11-16 2005-11-16 三角波発生回路、それを用いたインバータ、発光装置、液晶テレビ

Publications (1)

Publication Number Publication Date
TW200729725A true TW200729725A (en) 2007-08-01

Family

ID=38048602

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095142467A TW200729725A (en) 2005-11-16 2006-11-16 Triangular-wave generating circuit, and inverter, light emitting device and liquid crystal television using the circuit

Country Status (6)

Country Link
US (1) US7948282B2 (zh)
JP (1) JP4685602B2 (zh)
KR (1) KR20080067960A (zh)
CN (1) CN101103528B (zh)
TW (1) TW200729725A (zh)
WO (1) WO2007058217A1 (zh)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4823825B2 (ja) * 2006-09-06 2011-11-24 ローム株式会社 三角波発生回路、発生方法、それらを用いたインバータ、発光装置、液晶テレビ
CN101355349B (zh) * 2007-07-23 2010-09-29 晶豪科技股份有限公司 三角波产生电路及其方法
EP2045791B1 (en) * 2007-10-01 2014-01-15 Siemens Aktiengesellschaft An electronic device
JP5130858B2 (ja) * 2007-10-03 2013-01-30 ヤマハ株式会社 三角波同期生成システム及びそれに用いる三角波同期生成回路
JP2009231106A (ja) * 2008-03-24 2009-10-08 Sanken Electric Co Ltd 放電管点灯装置の同期運転システム及び放電管点灯装置並びに半導体集積回路
CN101610024B (zh) * 2008-06-20 2012-05-23 尼克森微电子股份有限公司 具频率抖动的频率发生器及脉宽调制控制器
JP5679681B2 (ja) * 2009-03-25 2015-03-04 ローム株式会社 発振回路およびスイッチング電源
CN102209411B (zh) * 2010-03-31 2014-07-16 美芯晟科技(北京)有限公司 适用于led驱动器的高精度电流控制方法及系统
JP2011259167A (ja) * 2010-06-08 2011-12-22 On Semiconductor Trading Ltd 三角波発生回路
US8648640B1 (en) * 2012-10-22 2014-02-11 Realtek Semiconductor Corp. Method and apparatus for clock transmission
WO2015016891A1 (en) * 2013-07-31 2015-02-05 Schneider Electric Solar Inverters Usa, Inc. Isolated uni-polar transistor gate drive
JP6248649B2 (ja) * 2014-01-23 2017-12-20 株式会社デンソー 絶縁通信装置
US10069488B2 (en) * 2014-04-16 2018-09-04 Microchip Technology Incorporated Ramp generation module
WO2016204122A1 (ja) * 2015-06-16 2016-12-22 富士電機株式会社 半導体装置
CN106911323B (zh) * 2015-12-23 2020-05-19 辰芯科技有限公司 三角波生成系统
CN108123715B (zh) * 2017-12-19 2021-02-23 四川和芯微电子股份有限公司 倍频电路
CN111294701B (zh) 2018-12-29 2021-11-02 展讯通信(深圳)有限公司 信号发生电路及音频处理装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6025927B2 (ja) * 1979-01-26 1985-06-21 株式会社河合楽器製作所 多相発振器
JPS62169514A (ja) * 1986-01-21 1987-07-25 Mitsubishi Electric Corp エツジトリガ−発生回路
JPS63275220A (ja) * 1987-05-06 1988-11-11 Nec Ic Microcomput Syst Ltd 逓倍回路
JP2808743B2 (ja) * 1989-11-08 1998-10-08 ネミツク・ラムダ株式会社 同期型スイッチング電源
JPH03256405A (ja) * 1990-03-06 1991-11-15 Toshiba Corp 鋸波電圧発生回路
US5394020A (en) * 1992-12-30 1995-02-28 Zenith Electronics Corporation Vertical ramp automatic amplitude control
JPH08293767A (ja) * 1995-04-19 1996-11-05 Toyota Autom Loom Works Ltd 三角波発振回路
JPH1188125A (ja) * 1997-09-03 1999-03-30 Sony Corp ディジタル制御発振回路およびpll回路
JP3607094B2 (ja) * 1998-09-10 2005-01-05 シャープ株式会社 同期発振回路
JP3408436B2 (ja) * 1998-10-29 2003-05-19 エヌイーシーマイクロシステム株式会社 垂直のこぎり波発振回路
JP2001345682A (ja) 2000-06-02 2001-12-14 Koyo Seiko Co Ltd 三角波発生回路、pwm制御装置及び電動パワーステアリング装置
JP2003008404A (ja) * 2001-06-26 2003-01-10 Fujitsu Ltd 発振回路
KR100451928B1 (ko) * 2002-03-08 2004-10-08 삼성전기주식회사 엘시디 백라이트용 인버터의 싱글 스테이지 컨버터
CN2586288Y (zh) * 2002-08-02 2003-11-12 中国科学院等离子体物理研究所 高压电子波形发生器
JP3912224B2 (ja) 2002-08-09 2007-05-09 富士電機デバイステクノロジー株式会社 三角波発振回路
TW591974B (en) * 2002-11-14 2004-06-11 Richtek Technology Corp Two-phase H-bridge driving circuit and method
JP4094408B2 (ja) * 2002-11-15 2008-06-04 ローム株式会社 直流−交流変換装置、制御回路、制御装置、及びそのコントローラic
JP4057438B2 (ja) * 2003-02-04 2008-03-05 ローム株式会社 三角波信号の位相同期方法、及びそのシステム
JP4017537B2 (ja) * 2003-02-12 2007-12-05 株式会社ルネサステクノロジ 発振回路
JP2007074190A (ja) * 2005-09-06 2007-03-22 Rohm Co Ltd 三角波発生回路ならびにそれを用いたパルス幅変調器およびスイッチングレギュレータ
US7557622B2 (en) * 2005-10-17 2009-07-07 Harman International Industries, Incorporated Precision triangle waveform generator

Also Published As

Publication number Publication date
US20100277090A1 (en) 2010-11-04
JP2007142685A (ja) 2007-06-07
JP4685602B2 (ja) 2011-05-18
CN101103528B (zh) 2012-05-16
WO2007058217A1 (ja) 2007-05-24
CN101103528A (zh) 2008-01-09
KR20080067960A (ko) 2008-07-22
US7948282B2 (en) 2011-05-24

Similar Documents

Publication Publication Date Title
TW200729725A (en) Triangular-wave generating circuit, and inverter, light emitting device and liquid crystal television using the circuit
TW200509752A (en) Power supply for lighting
US20130027999A1 (en) Discharge circuit and method
GB2438112B (en) A demodulator
US9055645B2 (en) Apparatus for controlling light emitting devices
US8653695B2 (en) Power switching device and method thereof, and projection device using the power switching device
KR101025938B1 (ko) 보호 기능을 갖는 발광 다이오드 구동 장치
US9577632B2 (en) Wireless switching circuit
EP1931029A3 (en) Sawtooth oscillator having controlled endpoints and methodology therefor
TW200625260A (en) Capacitive load charge-discharge device and liquid crystal display device having the same
TW200630618A (en) Voltage-frequency conversion device and reference voltage generating method of the same
KR101837164B1 (ko) 스위치 제어기, 스위치 제어 방법, 및 스위치 제어기를 포함하는 전력 공급 장치
TW200633361A (en) Oscillator circuit and oscillation control method
TW200708915A (en) Circuit for reference current and voltage generation
EP1612647A3 (en) Image forming apparatus having power supply apparatus
US20130342129A1 (en) Flicker prevention with switched bulk capacitor
US9280925B2 (en) Method for power-on sequence and device with low current power source
US8022635B2 (en) CCFL controller with multi-function terminal
US8674968B2 (en) Touch sensing method and associated circuit
TW200608710A (en) Charge pump circuit having switches
US7777527B2 (en) Phase detection apparatus
CN115606849A (zh) 驱动指示灯的系统控制电路、指示组件及电子雾化装置
US20150168460A1 (en) Apparatus for detecting clock signal and system for detecting clock signal using the same
CN101715261A (zh) 一种led控制器状态转换电路
WO2004036330A3 (en) Power supply with capacitive mains isolation