Fault protected current source for lighting element testing

A fault protected current source is provided that can be used to safely drive LEDs in reliability test systems. The current source is includes circuits and processes that detect the common faults found in LED reliability test systems. After a fault is detected, the current source shuts down drive be...

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Bibliographic Details
Main Author HULETT JEFFREY NEIL
Format Patent
LanguageChinese
English
Published 02.07.2014
Subjects
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
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Summary:A fault protected current source is provided that can be used to safely drive LEDs in reliability test systems. The current source is includes circuits and processes that detect the common faults found in LED reliability test systems. After a fault is detected, the current source shuts down drive before destructive spikes are produced. Because only true LED failures are counted, this fault protected current source can be used to construct reliability test systems that produce more accurate reliability test data.
Bibliography:Application Number: CN201180029223