WO2000001067A3 - Method for software driven generation of multiple simultaneous high speed pulse width modulated signals - Google Patents

Method for software driven generation of multiple simultaneous high speed pulse width modulated signals Download PDF

Info

Publication number
WO2000001067A3
WO2000001067A3 PCT/US1999/014555 US9914555W WO0001067A3 WO 2000001067 A3 WO2000001067 A3 WO 2000001067A3 US 9914555 W US9914555 W US 9914555W WO 0001067 A3 WO0001067 A3 WO 0001067A3
Authority
WO
WIPO (PCT)
Prior art keywords
pulse width
timer
interrupt
high speed
modulated signals
Prior art date
Application number
PCT/US1999/014555
Other languages
French (fr)
Other versions
WO2000001067A2 (en
Inventor
Ihor A Lys
Frederick M Morgan
Original Assignee
Color Kinetics Inc
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 Color Kinetics Inc filed Critical Color Kinetics Inc
Priority to EP99938706A priority Critical patent/EP1090459A2/en
Priority to CA002336184A priority patent/CA2336184A1/en
Priority to AU53129/99A priority patent/AU5312999A/en
Priority to JP2000557545A priority patent/JP2002519989A/en
Publication of WO2000001067A2 publication Critical patent/WO2000001067A2/en
Publication of WO2000001067A3 publication Critical patent/WO2000001067A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/08—Duration or width modulation ; Duty cycle modulation
    • 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]
    • H05B45/20—Controlling the colour 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
    • 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]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2014—Display of intermediate tones by modulation of the duration of a single pulse during which the logic level remains constant
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

Landscapes

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

Abstract

Systems and methods can provide, in one aspect, a method for modulating the pulse width of control signals generated on a plurality of separate channels. In one practice, the methods described herein are suitable for execution on a microprocessor or micro controller platform that includes a timer interrupt mechanism which will generate an interrupt in response to a timer counting down a selected time interval or time period. In one practice, the timer is set to count down a period of time that is representative of a portion, or sub period, of the PWM cycle. Upon expiration of that time period, the timer executes an interrupt that causes the micro controller to enter an interrupt service routine (ISR) that can further modulate the PWM cycle of one or more signals.
PCT/US1999/014555 1998-06-26 1999-06-25 Method for software driven generation of multiple simultaneous high speed pulse width modulated signals WO2000001067A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP99938706A EP1090459A2 (en) 1998-06-26 1999-06-25 Method for software driven generation of multiple simultaneous high speed pulse width modulated signals
CA002336184A CA2336184A1 (en) 1998-06-26 1999-06-25 Method for software driven generation of multiple simultaneous high speed pulse width modulated signals
AU53129/99A AU5312999A (en) 1998-06-26 1999-06-25 Method for software driven generation of multiple simultaneous high speed pulse width modulated signals
JP2000557545A JP2002519989A (en) 1998-06-26 1999-06-25 Method for generating software-driven simultaneous high-speed pulse-width modulated signals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9092098P 1998-06-26 1998-06-26
US60/090,920 1998-06-26

Publications (2)

Publication Number Publication Date
WO2000001067A2 WO2000001067A2 (en) 2000-01-06
WO2000001067A3 true WO2000001067A3 (en) 2000-03-16

Family

ID=22224965

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/014555 WO2000001067A2 (en) 1998-06-26 1999-06-25 Method for software driven generation of multiple simultaneous high speed pulse width modulated signals

Country Status (5)

Country Link
EP (1) EP1090459A2 (en)
JP (1) JP2002519989A (en)
AU (1) AU5312999A (en)
CA (1) CA2336184A1 (en)
WO (1) WO2000001067A2 (en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6548967B1 (en) 1997-08-26 2003-04-15 Color Kinetics, Inc. Universal lighting network methods and systems
US7049761B2 (en) 2000-02-11 2006-05-23 Altair Engineering, Inc. Light tube and power supply circuit
DE10146096A1 (en) * 2001-09-19 2003-04-24 Bosch Gmbh Robert Device and method for generating pulse width modulated output signals
ATE434918T1 (en) * 2005-07-27 2009-07-15 Koninkl Philips Electronics Nv LIGHTING SYSTEM AND METHOD FOR CONTROLLING MULTIPLE LIGHT SOURCES
EP3406969A1 (en) 2006-11-28 2018-11-28 Hayward Industries, Inc. Programmable underwater lighting system
US8118447B2 (en) 2007-12-20 2012-02-21 Altair Engineering, Inc. LED lighting apparatus with swivel connection
US8203281B2 (en) 2008-04-29 2012-06-19 Ivus Industries, Llc Wide voltage, high efficiency LED driver circuit
US8214084B2 (en) 2008-10-24 2012-07-03 Ilumisys, Inc. Integration of LED lighting with building controls
US8324817B2 (en) 2008-10-24 2012-12-04 Ilumisys, Inc. Light and light sensor
US8653984B2 (en) 2008-10-24 2014-02-18 Ilumisys, Inc. Integration of LED lighting control with emergency notification systems
US8901823B2 (en) 2008-10-24 2014-12-02 Ilumisys, Inc. Light and light sensor
US7938562B2 (en) 2008-10-24 2011-05-10 Altair Engineering, Inc. Lighting including integral communication apparatus
CN102577180B (en) * 2009-09-18 2016-03-30 交互数字专利控股公司 Visible light communication (VLC) is carried out to the method and apparatus of the light modulation of speed control
CA2792940A1 (en) 2010-03-26 2011-09-19 Ilumisys, Inc. Led light with thermoelectric generator
EP2553316B8 (en) 2010-03-26 2015-07-08 iLumisys, Inc. Led light tube with dual sided light distribution
EP2553332B1 (en) 2010-03-26 2016-03-23 iLumisys, Inc. Inside-out led bulb
US20110267834A1 (en) 2010-04-28 2011-11-03 Hayward Industries, Inc. Underwater Light Having A Sealed Polymer Housing and Method of Manufacture Therefor
WO2012058556A2 (en) 2010-10-29 2012-05-03 Altair Engineering, Inc. Mechanisms for reducing risk of shock during installation of light tube
US8870415B2 (en) 2010-12-09 2014-10-28 Ilumisys, Inc. LED fluorescent tube replacement light with reduced shock hazard
US9072171B2 (en) 2011-08-24 2015-06-30 Ilumisys, Inc. Circuit board mount for LED light
WO2013131002A1 (en) 2012-03-02 2013-09-06 Ilumisys, Inc. Electrical connector header for an led-based light
WO2014008463A1 (en) 2012-07-06 2014-01-09 Ilumisys, Inc. Power supply assembly for led-based light tube
US9271367B2 (en) 2012-07-09 2016-02-23 Ilumisys, Inc. System and method for controlling operation of an LED-based light
US9285084B2 (en) 2013-03-14 2016-03-15 Ilumisys, Inc. Diffusers for LED-based lights
US9285790B2 (en) 2013-03-15 2016-03-15 Hayward Industries, Inc. Modular pool/spa control system
US9267650B2 (en) 2013-10-09 2016-02-23 Ilumisys, Inc. Lens for an LED-based light
WO2015112437A1 (en) 2014-01-22 2015-07-30 Ilumisys, Inc. Led-based light with addressed leds
US9510400B2 (en) 2014-05-13 2016-11-29 Ilumisys, Inc. User input systems for an LED-based light
US10161568B2 (en) 2015-06-01 2018-12-25 Ilumisys, Inc. LED-based light with canted outer walls
AU2017210106B2 (en) 2016-01-22 2022-09-22 Hayward Industries, Inc. Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment
US11720085B2 (en) 2016-01-22 2023-08-08 Hayward Industries, Inc. Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment
DE102016211737A1 (en) * 2016-06-29 2018-01-04 Bayerische Motoren Werke Aktiengesellschaft motor vehicle
US11168876B2 (en) 2019-03-06 2021-11-09 Hayward Industries, Inc. Underwater light having programmable controller and replaceable light-emitting diode (LED) assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0345166A (en) * 1989-07-11 1991-02-26 Nec Corp Pulse width modulating inverter controller
US5298871A (en) * 1991-12-25 1994-03-29 Nec Corporation Pulse width modulation signal generating circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0345166A (en) * 1989-07-11 1991-02-26 Nec Corp Pulse width modulating inverter controller
US5298871A (en) * 1991-12-25 1994-03-29 Nec Corporation Pulse width modulation signal generating circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 185 (E - 1066) 13 May 1991 (1991-05-13) *

Also Published As

Publication number Publication date
AU5312999A (en) 2000-01-17
WO2000001067A2 (en) 2000-01-06
JP2002519989A (en) 2002-07-02
CA2336184A1 (en) 2000-01-06
EP1090459A2 (en) 2001-04-11

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