JP5753283B2 - タイム・オブ・フライト計算用のledドライバ回路 - Google Patents
タイム・オブ・フライト計算用のledドライバ回路 Download PDFInfo
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- JP5753283B2 JP5753283B2 JP2013558474A JP2013558474A JP5753283B2 JP 5753283 B2 JP5753283 B2 JP 5753283B2 JP 2013558474 A JP2013558474 A JP 2013558474A JP 2013558474 A JP2013558474 A JP 2013558474A JP 5753283 B2 JP5753283 B2 JP 5753283B2
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Classifications
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- 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
- H02M3/00—Conversion of dc power input into dc power output
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
- G01C3/02—Details
- G01C3/06—Use of electric means to obtain final indication
- G01C3/08—Use of electric radiation detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
- G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/483—Details of pulse systems
- G01S7/484—Transmitters
-
- 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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
-
- 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
-
- 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
- H02M7/505—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 thyratron or thyristor type requiring extinguishing means
- H02M7/515—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/525—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency
- H02M7/527—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency by pulse width modulation
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
- H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
- H05B45/38—Switched mode power supply [SMPS] using boost topology
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
- G01S17/894—3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Dc-Dc Converters (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Measurement Of Optical Distance (AREA)
- Electroluminescent Light Sources (AREA)
Description
前記DC電源からDC電圧を受電する端子、第1のインダクタンス、キャパシタンスのような電荷蓄積装置及び第1及び第2のスイッチング手段を備え、前記第1のインダクタンスが前記端子に結合され、前記第1のスイッチング手段が前記キャパシタンスのような電荷蓄積装置を前記インダクタンスから第1の周波数で充電するように構成されているDC−DCコンバータ回路と、
前記キャパシタンスのような電荷蓄積装置に結合された第2のインダクタンス及び前記第2のインダクタンスを前記負荷のためのパルス波電流源として前記第1の周波数より高い第2の周波数で駆動する第3のスイッチング手段を備えるDC電圧−AC電流コンバータ回路と、
を備える。
Claims (14)
- 負荷(106)(408)を駆動するためにDC電力をパルス波に変換するための、DC電源(407)とともに使用されるブーストコンバータ回路(406)であって、前記負荷(106)は、1つ以上の発光ダイオード又は有機発光ダイオード、又はレーザ又はレーザダイオードであるブーストコンバータ回路において、
前記DC電源からDC電圧を受電する端子(101)、第1のインダクタンス(L1)、電荷蓄積装置(C2)及び第1のスイッチング手段(D1)及び第2のスイッチング手段(M1)を備え、前記第1のインダクタンス(L1)が前記端子(101)に結合され、前記第1のインダクタンス(L1)と前記電荷蓄積装置(C2)との間に接続された前記第1のスイッチング手段(D1)及び前記第2のスイッチング手段(M1)が、前記電荷蓄積装置(C2)を前記第1のインダクタンス(L1)から、前記第2のスイッチング手段(M1)を駆動する第1の周波数で充電するように構成されているDC−DCコンバータ回路(410)と、
第2のインダクタンス(L2)及び第3のスイッチング手段(M2)を備えたDC電圧−AC電流コンバータ回路(107)(412)であって、前記DC電圧−AC電流コンバータ回路はDC電圧−パルス波電流コンバータであり、前記第2のインダクタンス(L2)は、前記電荷蓄積装置(C2)及び第3のスイッチング手段(M2)に結合され、前記第3のスイッチング手段(M2)は、前記負荷(106)を短絡するように配置され、前記第2のインダクタンスを充電し、前記第2のインダクタンスを前記負荷のためのパルス波電流源として前記第1の周波数より高い第2の周波数で駆動するDC電圧−AC電流コンバータ回路と、
前記負荷(106)の電流を検出する電流検出手段(414)とを備え、
前記DC−DCコンバータ回路(410)は、前記電流検出手段(414)の出力(115)に応答して、帰還ループにより前記負荷の電流を制御するように構成されている、ブーストコンバータ回路(406)。 - 前記DC−DCコンバータ回路は、前記電流検出手段(414)の出力(115)に応答して、帰還ループにより前記第2のインダクタンス(L2)の電流を制御するように構成されている、請求項1記載のブーストコンバータ回路。
- 前記第3のスイッチング手段(M2)は前記負荷と並列に制御されている、請求項1又は2記載のブーストコンバータ回路。
- 前記電荷蓄積装置(C2)、前記第2のインダクタンス(L2)、前記負荷(106)及び前記第3のスイッチング手段(M2)の配置構成が、前記負荷の両端間の電圧を、前記電荷蓄積装置の両端間の電圧(V1)より高く昇圧する、請求項1、2又は3のいずれか一項に記載のブーストコンバータ回路。
- 前記第2のスイッチング手段はダイオード手段(D1)である、請求項1〜4のいずれか一項に記載のブーストコンバータ回路。
- 前記負荷の電流を遮断するための第4のスイッチング手段(M3)を更に備える、請求項1〜5のいずれか一項に記載のブーストコンバータ回路。
- 前記負荷の電流の制御は、前記DC−DCコンバータ回路のPWM制御により達成される、請求項1〜6のいずれか一項に記載のブーストコンバータ回路。
- 前記帰還ループは、前記DC−DCコンバータ回路を所定の時間間隔でのみ制御するように構成されている、請求項1〜7のいずれか一項に記載のブーストコンバータ回路。
- 前記DC電圧−AC電流コンバータ回路は、前記DC−DCコンバータ回路からDC電流を引き出すだけであるように構成されている、請求項1〜8のいずれか一項に記載のブーストコンバータ回路。
- PWMデューティサイクル値のための出力を更に備える、請求項7〜9のいずれか一項に記載のブーストコンバータ回路。
- 前記DC−DCコンバータ回路のPWM制御は、開始モードと停止モードを有する、請求項7〜9のいずれか一項に記載のブーストコンバータ回路。
- 請求項1〜11のいずれか一項に記載のブーストコンバータ回路を含む距離測定装置、カメラ又はセンサ。
- 前記距離測定装置、カメラ又はセンサは、測定サイクル中に前記1つ以上の光源により放射され物体により反射された光を測定することによって物体までの距離を測定するように構成され、前記ブーストコンバータ回路は前記測定サイクル前にPWM制御を更新するように構成されている、請求項8〜11のいずれか一項に記載のブーストコンバータ回路を含む距離測定装置、カメラ又はセンサ。
- 請求項8に記載のブーストコンバータ回路を含む距離測定装置、カメラ又はセンサであって、
測定サイクル中に前記1つ以上の光源により放射され物体により反射された光を測定することによって物体までの距離を測定するように構成され、
前記ブーストコンバータ回路は、前記測定サイクル前にPWM制御を更新するように構成され、
前記時間間隔は前記測定サイクルのタイミングに同期化される、距離測定装置、カメラ又はセンサ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1112115.9 | 2011-07-14 | ||
GB1112115.9A GB2492833A (en) | 2011-07-14 | 2011-07-14 | LED boost converter driver circuit for Time Of Flight light sources |
PCT/EP2012/063697 WO2013007787A1 (en) | 2011-07-14 | 2012-07-12 | Driver circuit for leds for time-of-flight calculation |
Publications (2)
Publication Number | Publication Date |
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JP2014508505A JP2014508505A (ja) | 2014-04-03 |
JP5753283B2 true JP5753283B2 (ja) | 2015-07-22 |
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JP2013558474A Active JP5753283B2 (ja) | 2011-07-14 | 2012-07-12 | タイム・オブ・フライト計算用のledドライバ回路 |
Country Status (9)
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US (1) | US9847736B2 (ja) |
EP (1) | EP2622942B1 (ja) |
JP (1) | JP5753283B2 (ja) |
KR (1) | KR101622448B1 (ja) |
CN (1) | CN103262652B (ja) |
BE (1) | BE1020259A5 (ja) |
GB (1) | GB2492833A (ja) |
TW (1) | TWI524810B (ja) |
WO (1) | WO2013007787A1 (ja) |
Families Citing this family (84)
Publication number | Priority date | Publication date | Assignee | Title |
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GB2492833A (en) * | 2011-07-14 | 2013-01-16 | Softkinetic Sensors Nv | LED boost converter driver circuit for Time Of Flight light sources |
DE102012111317B4 (de) * | 2012-11-23 | 2021-07-22 | HELLA GmbH & Co. KGaA | Schaltungsanordnung mit einem Abwärtswandler |
US9083960B2 (en) * | 2013-01-30 | 2015-07-14 | Qualcomm Incorporated | Real-time 3D reconstruction with power efficient depth sensor usage |
US9185762B2 (en) * | 2013-04-19 | 2015-11-10 | Infineon Technologies Ag | Time of flight illumination circuit |
CN103280190B (zh) * | 2013-05-20 | 2015-11-25 | 深圳市华星光电技术有限公司 | 一种背光驱动电路、液晶显示装置和背光驱动方法 |
US9183788B2 (en) | 2013-05-20 | 2015-11-10 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Backlight driving circuit, LCD device, and method for driving the backlight driving circuit |
US20150022087A1 (en) | 2013-07-16 | 2015-01-22 | GE Lighting Solutions, LLC | Method and apparatus for providing supplemental power in a led driver |
US9939262B2 (en) * | 2013-08-20 | 2018-04-10 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting device and camera |
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JP2014508505A (ja) | 2014-04-03 |
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US9847736B2 (en) | 2017-12-19 |
TW201306647A (zh) | 2013-02-01 |
GB2492833A (en) | 2013-01-16 |
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