LED light string with guaranteed conduction
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United States of America Patent
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Issued Date -
Jun 26, 2008
app pub date -
Feb 20, 2007
filing date -
Dec 22, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An LED light string with guaranteed conduction has a plurality of LEDs connected in series to form a light string. Both ends of the light string are connected with a power supply to form a closed circuit. Each LED on the light string is connected with a bypass element in parallel. The bypass element can be a Zener diode with a forward voltage higher than that of the LED. When any LED on the light string fails, the current still flows through the circuit via the corresponding bypass element. Therefore, the light string is guaranteed to be conductive even when some of the LED's are broken.
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