GB201201689D0 - Ultra clean off line led driver - Google Patents

Ultra clean off line led driver

Info

Publication number
GB201201689D0
GB201201689D0 GBGB1201689.5A GB201201689A GB201201689D0 GB 201201689 D0 GB201201689 D0 GB 201201689D0 GB 201201689 A GB201201689 A GB 201201689A GB 201201689 D0 GB201201689 D0 GB 201201689D0
Authority
GB
United Kingdom
Prior art keywords
operable
supply
voltage
led arrangement
circuit
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.)
Ceased
Application number
GBGB1201689.5A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TRUNDLE ROBERT M
Original Assignee
TRUNDLE ROBERT M
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 TRUNDLE ROBERT M filed Critical TRUNDLE ROBERT M
Priority to GBGB1201689.5A priority Critical patent/GB201201689D0/en
Publication of GB201201689D0 publication Critical patent/GB201201689D0/en
Priority to GB1221595.0A priority patent/GB2498836B/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H05B45/395—Linear regulators
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
    • B64D2011/0038—Illumination systems for cabins as a whole
    • 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]

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

A linear power supply circuit 100, operable to receive a rectified AC voltage supply having an instantaneous voltage which varies between a minimum zero-crossing value and peak value as a function of time, comprises an LED arrangement 106 having a minimum drive voltage above which supply current is operable to flow through said LED arrangement, a drive circuit section 108 operable to control the supply current through the LED arrangement, and a load ballast circuit 110 arranged in parallel with said LED arrangement and operable to enable supply current to flow therethrough when the instantaneous voltage across the LED arrangement is less than the minimum drive voltage such that the circuit is operable to provide current control across the whole voltage range of the AC voltage supply. The circuit provides a high power factor supply with low harmonic distortion suitable to power aircraft lighting.
GBGB1201689.5A 2012-01-30 2012-01-30 Ultra clean off line led driver Ceased GB201201689D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GBGB1201689.5A GB201201689D0 (en) 2012-01-30 2012-01-30 Ultra clean off line led driver
GB1221595.0A GB2498836B (en) 2012-01-30 2012-11-30 LED power supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1201689.5A GB201201689D0 (en) 2012-01-30 2012-01-30 Ultra clean off line led driver

Publications (1)

Publication Number Publication Date
GB201201689D0 true GB201201689D0 (en) 2012-03-14

Family

ID=45876427

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB1201689.5A Ceased GB201201689D0 (en) 2012-01-30 2012-01-30 Ultra clean off line led driver
GB1221595.0A Expired - Fee Related GB2498836B (en) 2012-01-30 2012-11-30 LED power supply circuit

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1221595.0A Expired - Fee Related GB2498836B (en) 2012-01-30 2012-11-30 LED power supply circuit

Country Status (1)

Country Link
GB (2) GB201201689D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2516696B (en) * 2013-07-30 2016-09-28 Michael Trundle Robert Low Noise and Continuous Emission LED Power Supply Circuit
US9572219B1 (en) 2015-09-14 2017-02-14 Hamilton Sundstrand Corporation Hue and dimming control circuits for lamps or LED arrays

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7081722B1 (en) * 2005-02-04 2006-07-25 Kimlong Huynh Light emitting diode multiphase driver circuit and method
WO2010095813A2 (en) * 2009-02-17 2010-08-26 주식회사 루미네이처 Power-saving led lighting apparatus
US8410717B2 (en) * 2009-06-04 2013-04-02 Point Somee Limited Liability Company Apparatus, method and system for providing AC line power to lighting devices
JP5471330B2 (en) * 2009-07-14 2014-04-16 日亜化学工業株式会社 Light emitting diode drive circuit and light emitting diode lighting control method
US8593044B2 (en) * 2010-01-26 2013-11-26 Once Innovations, Inc. Modular architecture for sealed LED light engines
US8299724B2 (en) * 2010-03-19 2012-10-30 Active-Semi, Inc. AC LED lamp involving an LED string having separately shortable sections
KR100997050B1 (en) * 2010-05-06 2010-11-29 주식회사 티엘아이 Led lighting system for improving linghting amount
US8476836B2 (en) * 2010-05-07 2013-07-02 Cree, Inc. AC driven solid state lighting apparatus with LED string including switched segments
US8476837B2 (en) * 2010-07-02 2013-07-02 3M Innovative Properties Company Transistor ladder network for driving a light emitting diode series string
JP6002670B2 (en) * 2010-09-10 2016-10-05 オスラム・シルバニア・インコーポレイテッド System and method for driving LEDs

Also Published As

Publication number Publication date
GB2498836A (en) 2013-07-31
GB2498836B (en) 2016-08-10

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)