WO2007026170A3 - Improvements to lighting systems - Google Patents

Improvements to lighting systems Download PDF

Info

Publication number
WO2007026170A3
WO2007026170A3 PCT/GB2006/003259 GB2006003259W WO2007026170A3 WO 2007026170 A3 WO2007026170 A3 WO 2007026170A3 GB 2006003259 W GB2006003259 W GB 2006003259W WO 2007026170 A3 WO2007026170 A3 WO 2007026170A3
Authority
WO
WIPO (PCT)
Prior art keywords
duration
input
output
adaptors
solid state
Prior art date
Application number
PCT/GB2006/003259
Other languages
French (fr)
Other versions
WO2007026170A2 (en
Inventor
David Thomas Summerland
Original Assignee
Light Ltd E
David Thomas Summerland
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
Priority claimed from GBGB0517959.3A external-priority patent/GB0517959D0/en
Application filed by Light Ltd E, David Thomas Summerland filed Critical Light Ltd E
Priority to EP06779279A priority Critical patent/EP1920638B1/en
Priority to US11/991,253 priority patent/US20090085494A1/en
Priority to AT06779279T priority patent/ATE520282T1/en
Publication of WO2007026170A2 publication Critical patent/WO2007026170A2/en
Publication of WO2007026170A3 publication Critical patent/WO2007026170A3/en

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]
    • 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
    • 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
    • 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
    • H05B45/31—Phase-control 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
    • H05B45/32—Pulse-control circuits
    • H05B45/325—Pulse-width modulation [PWM]
    • 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

Abstract

The present invention relates to power adaptors (10) for solid state lighting units (30) and fixtures, of a kind including light emitting diodes (30a, 30b, 30c) , one of the adaptors comprising an input for receiving a phase controlled input power signal of varying on- duration and a controller (11) coupled to the input and operable to produce at least one pulsed output driving signal (16a, 16b, 16c) in which both the duration and height of the pulses are varied according to the on-duration of the input power signal, to thereby control a light intensity output of the solid state lighting unit (30) , such that the output is made to vary in a way that matches the intensity response of the human eye .
PCT/GB2006/003259 2005-09-03 2006-09-04 Improvements to lighting systems WO2007026170A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP06779279A EP1920638B1 (en) 2005-09-03 2006-09-04 Improvements to lighting systems
US11/991,253 US20090085494A1 (en) 2005-09-03 2006-09-04 Improvement to lighting systems
AT06779279T ATE520282T1 (en) 2005-09-03 2006-09-04 IMPROVEMENTS TO LIGHTING SYSTEMS

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0517959.3 2005-09-03
GBGB0517959.3A GB0517959D0 (en) 2005-09-03 2005-09-03 Improvements to lighting systems
GB0526338.9 2005-12-23
GBGB0526338.9A GB0526338D0 (en) 2005-09-03 2005-12-23 Improvements to lighting systems

Publications (2)

Publication Number Publication Date
WO2007026170A2 WO2007026170A2 (en) 2007-03-08
WO2007026170A3 true WO2007026170A3 (en) 2007-06-14

Family

ID=37517259

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/003259 WO2007026170A2 (en) 2005-09-03 2006-09-04 Improvements to lighting systems

Country Status (2)

Country Link
EP (1) EP1920638B1 (en)
WO (1) WO2007026170A2 (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7719248B1 (en) 2007-05-02 2010-05-18 Cirrus Logic, Inc. Discontinuous conduction mode (DCM) using sensed current for a switch-mode converter
US7755525B2 (en) 2008-01-30 2010-07-13 Cirrus Logic, Inc. Delta sigma modulator with unavailable output values
US7759881B1 (en) 2008-03-31 2010-07-20 Cirrus Logic, Inc. LED lighting system with a multiple mode current control dimming strategy
US7804256B2 (en) 2007-03-12 2010-09-28 Cirrus Logic, Inc. Power control system for current regulated light sources
US7994863B2 (en) 2008-12-31 2011-08-09 Cirrus Logic, Inc. Electronic system having common mode voltage range enhancement
US8018171B1 (en) 2007-03-12 2011-09-13 Cirrus Logic, Inc. Multi-function duty cycle modifier
US8022683B2 (en) 2008-01-30 2011-09-20 Cirrus Logic, Inc. Powering a power supply integrated circuit with sense current
US8076920B1 (en) 2007-03-12 2011-12-13 Cirrus Logic, Inc. Switching power converter and control system
US8179110B2 (en) 2008-09-30 2012-05-15 Cirrus Logic Inc. Adjustable constant current source with continuous conduction mode (“CCM”) and discontinuous conduction mode (“DCM”) operation
US8288954B2 (en) 2008-12-07 2012-10-16 Cirrus Logic, Inc. Primary-side based control of secondary-side current for a transformer
US8362838B2 (en) 2007-01-19 2013-01-29 Cirrus Logic, Inc. Multi-stage amplifier with multiple sets of fixed and variable voltage rails
US8362707B2 (en) 2008-12-12 2013-01-29 Cirrus Logic, Inc. Light emitting diode based lighting system with time division ambient light feedback response
US8482223B2 (en) 2009-04-30 2013-07-09 Cirrus Logic, Inc. Calibration of lamps
US8487546B2 (en) 2008-08-29 2013-07-16 Cirrus Logic, Inc. LED lighting system with accurate current control
US8576589B2 (en) 2008-01-30 2013-11-05 Cirrus Logic, Inc. Switch state controller with a sense current generated operating voltage
US8654483B2 (en) 2009-11-09 2014-02-18 Cirrus Logic, Inc. Power system having voltage-based monitoring for over current protection
US8963535B1 (en) 2009-06-30 2015-02-24 Cirrus Logic, Inc. Switch controlled current sensing using a hall effect sensor
US9155174B2 (en) 2009-09-30 2015-10-06 Cirrus Logic, Inc. Phase control dimming compatible lighting systems

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7667408B2 (en) 2007-03-12 2010-02-23 Cirrus Logic, Inc. Lighting system with lighting dimmer output mapping
MX2009010560A (en) 2007-03-30 2010-01-15 Holdip Ltd Improvements relating to lighting systems.
US7696913B2 (en) 2007-05-02 2010-04-13 Cirrus Logic, Inc. Signal processing system using delta-sigma modulation having an internal stabilizer path with direct output-to-integrator connection
WO2008142622A1 (en) * 2007-05-22 2008-11-27 Koninklijke Philips Electronics N.V. Personalized dimming controller
US8102127B2 (en) 2007-06-24 2012-01-24 Cirrus Logic, Inc. Hybrid gas discharge lamp-LED lighting system
CN102318440B (en) 2007-08-24 2015-09-09 塞瑞斯逻辑公司 Many LED control
US8829812B2 (en) 2008-04-04 2014-09-09 Koninklijke Philips N.V. Dimmable lighting system
US8212494B2 (en) 2008-04-04 2012-07-03 Lemnis Lighting Patents Holding B.V. Dimmer triggering circuit, dimmer system and dimmable device
US8344707B2 (en) 2008-07-25 2013-01-01 Cirrus Logic, Inc. Current sensing in a switching power converter
US8212491B2 (en) 2008-07-25 2012-07-03 Cirrus Logic, Inc. Switching power converter control with triac-based leading edge dimmer compatibility
TW201129253A (en) * 2009-10-07 2011-08-16 Lemnis Lighting Patent Holding B V Dimmable lighting system
US8203277B2 (en) 2009-10-26 2012-06-19 Light-Based Technologies Incorporated Efficient electrically isolated light sources
US9173261B2 (en) 2010-07-30 2015-10-27 Wesley L. Mokry Secondary-side alternating energy transfer control with inverted reference and LED-derived power supply
US8729811B2 (en) 2010-07-30 2014-05-20 Cirrus Logic, Inc. Dimming multiple lighting devices by alternating energy transfer from a magnetic storage element
US9232612B2 (en) 2011-03-04 2016-01-05 Koninklijke Philips N.V. Apparatus and method for luminance control
US8912734B2 (en) 2011-03-24 2014-12-16 Cirrus Logic, Inc. Color mixing of electronic light sources with correlation between phase-cut dimmer angle and predetermined black body radiation function
US8823289B2 (en) 2011-03-24 2014-09-02 Cirrus Logic, Inc. Color coordination of electronic light sources with dimming and temperature responsiveness
US9204503B1 (en) 2012-07-03 2015-12-01 Philips International, B.V. Systems and methods for dimming multiple lighting devices by alternating transfer from a magnetic storage element
TWI504310B (en) * 2013-02-07 2015-10-11 Hep Tech Co Ltd Dimming light emitting diode lighting system and its driving device and driving method
TWI504182B (en) * 2013-04-19 2015-10-11 Hep Tech Co Ltd A method of transmitting a signal using a power waveform
CN104122847A (en) * 2013-04-24 2014-10-29 东林科技股份有限公司 Method for transmitting signal by using power waveform
GB201309340D0 (en) 2013-05-23 2013-07-10 Led Lighting Consultants Ltd Improvements relating to power adaptors
GB201322022D0 (en) 2013-12-12 2014-01-29 Led Lighting Consultants Ltd Improvements relating to power adaptors
WO2015184485A1 (en) * 2014-06-03 2015-12-10 Hendon Semiconductors Pty Ltd An off/on and brightness adjustment control arrangement for a phase cutting control dimmer and a method of operation thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5783909A (en) * 1997-01-10 1998-07-21 Relume Corporation Maintaining LED luminous intensity
WO2002091805A2 (en) * 2001-05-10 2002-11-14 Color Kinetics Incorporated Systems and methods for synchronizing lighting effects
US20040085030A1 (en) * 2002-10-30 2004-05-06 Benoit Laflamme Multicolor lamp system
EP1528785A1 (en) * 2003-10-14 2005-05-04 Archimede Elettronica S.r.l. Device and method for controlling the color of a light source

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5783909A (en) * 1997-01-10 1998-07-21 Relume Corporation Maintaining LED luminous intensity
WO2002091805A2 (en) * 2001-05-10 2002-11-14 Color Kinetics Incorporated Systems and methods for synchronizing lighting effects
US20040085030A1 (en) * 2002-10-30 2004-05-06 Benoit Laflamme Multicolor lamp system
EP1528785A1 (en) * 2003-10-14 2005-05-04 Archimede Elettronica S.r.l. Device and method for controlling the color of a light source

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8362838B2 (en) 2007-01-19 2013-01-29 Cirrus Logic, Inc. Multi-stage amplifier with multiple sets of fixed and variable voltage rails
US7852017B1 (en) 2007-03-12 2010-12-14 Cirrus Logic, Inc. Ballast for light emitting diode light sources
US8076920B1 (en) 2007-03-12 2011-12-13 Cirrus Logic, Inc. Switching power converter and control system
US8018171B1 (en) 2007-03-12 2011-09-13 Cirrus Logic, Inc. Multi-function duty cycle modifier
US8174204B2 (en) 2007-03-12 2012-05-08 Cirrus Logic, Inc. Lighting system with power factor correction control data determined from a phase modulated signal
US7804256B2 (en) 2007-03-12 2010-09-28 Cirrus Logic, Inc. Power control system for current regulated light sources
US7863828B2 (en) 2007-05-02 2011-01-04 Cirrus Logic, Inc. Power supply DC voltage offset detector
US7821237B2 (en) 2007-05-02 2010-10-26 Cirrus Logic, Inc. Power factor correction (PFC) controller and method using a finite state machine to adjust the duty cycle of a PWM control signal
US8120341B2 (en) 2007-05-02 2012-02-21 Cirrus Logic, Inc. Switching power converter with switch control pulse width variability at low power demand levels
US7888922B2 (en) 2007-05-02 2011-02-15 Cirrus Logic, Inc. Power factor correction controller with switch node feedback
US7894216B2 (en) 2007-05-02 2011-02-22 Cirrus Logic, Inc. Switching power converter with efficient switching control signal period generation
US7969125B2 (en) 2007-05-02 2011-06-28 Cirrus Logic, Inc. Programmable power control system
US8125805B1 (en) 2007-05-02 2012-02-28 Cirrus Logic Inc. Switch-mode converter operating in a hybrid discontinuous conduction mode (DCM)/continuous conduction mode (CCM) that uses double or more pulses in a switching period
US7746043B2 (en) 2007-05-02 2010-06-29 Cirrus Logic, Inc. Inductor flyback detection using switch gate change characteristic detection
US7719248B1 (en) 2007-05-02 2010-05-18 Cirrus Logic, Inc. Discontinuous conduction mode (DCM) using sensed current for a switch-mode converter
US8040703B2 (en) 2007-05-02 2011-10-18 Cirrus Logic, Inc. Power factor correction controller with feedback reduction
US7719246B2 (en) 2007-05-02 2010-05-18 Cirrus Logic, Inc. Power control system using a nonlinear delta-sigma modulator with nonlinear power conversion process modeling
US8022683B2 (en) 2008-01-30 2011-09-20 Cirrus Logic, Inc. Powering a power supply integrated circuit with sense current
US7755525B2 (en) 2008-01-30 2010-07-13 Cirrus Logic, Inc. Delta sigma modulator with unavailable output values
US8576589B2 (en) 2008-01-30 2013-11-05 Cirrus Logic, Inc. Switch state controller with a sense current generated operating voltage
US7759881B1 (en) 2008-03-31 2010-07-20 Cirrus Logic, Inc. LED lighting system with a multiple mode current control dimming strategy
US8487546B2 (en) 2008-08-29 2013-07-16 Cirrus Logic, Inc. LED lighting system with accurate current control
US8179110B2 (en) 2008-09-30 2012-05-15 Cirrus Logic Inc. Adjustable constant current source with continuous conduction mode (“CCM”) and discontinuous conduction mode (“DCM”) operation
US8288954B2 (en) 2008-12-07 2012-10-16 Cirrus Logic, Inc. Primary-side based control of secondary-side current for a transformer
US8362707B2 (en) 2008-12-12 2013-01-29 Cirrus Logic, Inc. Light emitting diode based lighting system with time division ambient light feedback response
US7994863B2 (en) 2008-12-31 2011-08-09 Cirrus Logic, Inc. Electronic system having common mode voltage range enhancement
US8482223B2 (en) 2009-04-30 2013-07-09 Cirrus Logic, Inc. Calibration of lamps
US8963535B1 (en) 2009-06-30 2015-02-24 Cirrus Logic, Inc. Switch controlled current sensing using a hall effect sensor
US9155174B2 (en) 2009-09-30 2015-10-06 Cirrus Logic, Inc. Phase control dimming compatible lighting systems
US8654483B2 (en) 2009-11-09 2014-02-18 Cirrus Logic, Inc. Power system having voltage-based monitoring for over current protection

Also Published As

Publication number Publication date
WO2007026170A2 (en) 2007-03-08
EP1920638A2 (en) 2008-05-14
EP1920638B1 (en) 2011-08-10

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