Power supply module with power factor compensation function for high-power LED lamps

The invention relates to a power supply module for a high-power light-emitting diode (LED) lamp. The module comprises an alternating current power supply, a plurality of alternating current-direct current power modules and a plurality of high-power LED strings, wherein the alternating current input...

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Bibliographic Details
Main Author LUO YAOGUANG
Format Patent
LanguageEnglish
Published 08.07.2015
Subjects
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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Summary:The invention relates to a power supply module for a high-power light-emitting diode (LED) lamp. The module comprises an alternating current power supply, a plurality of alternating current-direct current power modules and a plurality of high-power LED strings, wherein the alternating current input ends of all alternating current-direct current power modules are connected to the port of an alternating current voltage source; a ground wire at an alternating current input end and a ground wire at a module power supply output end are directly connected with a lamp shell; and the direct current output end of each module power supply is connected with one high-power LED string respectively. Respective independent alternating current-direct current power module supplies power to each LED stringrespectively, so that the reliability of the high-power LED lamp is enhanced greatly and the service life of the high-power LED lamp is prolonged greatly.
Bibliography:Application Number: CN201210427130