CA2010313A1 - Lighting control system - Google Patents

Lighting control system

Info

Publication number
CA2010313A1
CA2010313A1 CA2010313A CA2010313A CA2010313A1 CA 2010313 A1 CA2010313 A1 CA 2010313A1 CA 2010313 A CA2010313 A CA 2010313A CA 2010313 A CA2010313 A CA 2010313A CA 2010313 A1 CA2010313 A1 CA 2010313A1
Authority
CA
Canada
Prior art keywords
circuit
lighting
lighting control
control circuit
power supply
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.)
Granted
Application number
CA2010313A
Other languages
French (fr)
Other versions
CA2010313C (en
Inventor
Rufus Washington Warren Iii
John Edward Gorman
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.)
Chicago Stage Equipment Co
Original Assignee
Chicago Stage Equipment Co
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 Chicago Stage Equipment Co filed Critical Chicago Stage Equipment Co
Priority to CA002010313A priority Critical patent/CA2010313C/en
Publication of CA2010313A1 publication Critical patent/CA2010313A1/en
Application granted granted Critical
Publication of CA2010313C publication Critical patent/CA2010313C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

A lighting control circuit is provided for controlling illumination and dimming of at least one light in a lighting circuit for operation at a selectable one of a plurality of applied voltages. The lighting control circuit includes a power supply circuit for receiving an AC line voltage input and for converting the AC line voltage to selectable rectified AC and DC power for delivery to the lighting control circuit. A timing generator circuit is also coupled with the power supply circuit and is responsive to a rectified AC sample from the power supply for generating and shaping an electrical timing signal. A timing comparator circuit is responsive to the electrical timing signal for generating a variable duty cycle output signal. A
switching control circuit is coupled with the lighting circuit for gating current therethrough in accordance with the variable duty cycle output control signal.
CA002010313A 1990-02-19 1990-02-19 Lighting control system Expired - Fee Related CA2010313C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002010313A CA2010313C (en) 1990-02-19 1990-02-19 Lighting control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002010313A CA2010313C (en) 1990-02-19 1990-02-19 Lighting control system

Publications (2)

Publication Number Publication Date
CA2010313A1 true CA2010313A1 (en) 1991-08-19
CA2010313C CA2010313C (en) 1999-03-02

Family

ID=4144323

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002010313A Expired - Fee Related CA2010313C (en) 1990-02-19 1990-02-19 Lighting control system

Country Status (1)

Country Link
CA (1) CA2010313C (en)

Also Published As

Publication number Publication date
CA2010313C (en) 1999-03-02

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed