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    • 38. 发明申请
    • REGULATOR FOR LED LIGHTING COLOR MIXING
    • LED照明颜色混合调节器
    • WO2013028632A1
    • 2013-02-28
    • PCT/US2012/051610
    • 2012-08-20
    • MARVELL SEMICONDUCTOR, INC.SUTARDJA, SehatSUTARDJA, PantasZHANG, Wanfeng
    • SUTARDJA, SehatSUTARDJA, PantasZHANG, Wanfeng
    • H05B33/08
    • H05B33/0815H05B33/0857Y02B20/347
    • A system includes a first light emitting diode configured to produce light of a first color and a second light emitting diode configured to produce light of a second color. A constant current circuit is configured to provide a first current, wherein (i) the first current is approximately constant, (ii) a first portion of the first current flows through the second light emitting diode, and (iii) a remaining portion of the first current flows through the first light emitting diode. A current regulating circuit is configured to control the first portion of the first current flowing through the second light emitting diode. The current regulating circuit is connected in series with the second light emitting diode, the constant current circuit, and a reference potential. The first light emitting diode is connected in series directly between the constant current circuit and the reference potential.
    • 一种系统包括被配置为产生第一颜色的光的第一发光二极管和被配置为产生第二颜色的光的第二发光二极管。 恒流电路被配置为提供第一电流,其中(i)第一电流近似恒定,(ii)第一电流的第一部分流过第二发光二极管,以及(iii)剩余部分 第一电流流过第一发光二极管。 电流调节电路被配置为控制流过第二发光二极管的第一电流的第一部分。 电流调节电路与第二发光二极管,恒流电路和参考电位串联。 第一个发光二极管直接连接在恒流电路和参考电位之间。