Control of electrically efficient LED arrays

An LED lamp comprising: a plurality of LED strings, each LED string comprising a plurality of LEDs; a plurality of constant current circuits for powering the plurality of LED strings, wherein one constant current circuit is provided for each LED string; a plurality of shift registers for controlling...

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Bibliographic Details
Main Authors Panek Peter, O'Carroll Philip
Format Patent
LanguageEnglish
Published 21.11.2017
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
SEALS
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Summary:An LED lamp comprising: a plurality of LED strings, each LED string comprising a plurality of LEDs; a plurality of constant current circuits for powering the plurality of LED strings, wherein one constant current circuit is provided for each LED string; a plurality of shift registers for controlling the operation of the plurality of constant current circuits, wherein at least one shift register is provided for each LED string; and a microprocessor for supplying timing pulses to the plurality of shift registers for controlling operation of the plurality of constant current circuits, the timing pulses comprising a plurality of serial bit streams.
Bibliography:Application Number: US201615330831