Lighting device using series connecting mode to drive multiple light emitting units

The lighting device includes one light emitting module, one feedback control circuit and one DC/AC converting circuit. The light emitting module has the first light emitting unit, the second light emitting unit, the first transformer, the second transformer and the third transformer. The first trans...

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Bibliographische Detailangaben
Hauptverfasser:	XU ZHENGJIA, LIN XIANNAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	The lighting device includes one light emitting module, one feedback control circuit and one DC/AC converting circuit. The light emitting module has the first light emitting unit, the second light emitting unit, the first transformer, the second transformer and the third transformer. The first transformer has the first port with the first end connected to the first light emitting unit and the second end connected to the second light emitting unit; the second transformer is connected to the positive electrode end of the first light emitting unit; and the third transformer is connected to the negative electrode end of the second light emitting unit. The DC/AC converting circuit receives one DC power source and converts it into one AC power source to the light emitting module; and the feedback control circuit receives the current through the light emitting module and outputs one control signal to the DC/AC converting circuit to regulate the current flowing through the light emitting module.