| 摘要 |
An LED light-emitting device includes: a three-terminal LED circuit which includes a first LED group constituted by a single light-emitting diode or a plurality of light-emitting diodes connected in series, a second LED group constituted by a single light-emitting diode or a plurality of light-emitting diodes connected in series, and an LED common terminal shared by anodes of the first LED group and the second LED group or cathodes thereof, and which has three terminals including both end terminals of the LED groups; and a three-terminal regulator circuit which includes a first regulating unit constituted by a unidirectional current regulator circuit, a second regulating unit constituted by a unidirectional current regulator circuit, and a regulator circuit common terminal connected with the first regulating unit and the second regulating unit and shared by anodes or cathodes thereof so as to exhibit a reverse polarity with respect to the three-terminal LED circuit.
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