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    • 33. 发明申请
    • LED LIGHT SOURCE
    • LED光源
    • US20140197740A1
    • 2014-07-17
    • US14239166
    • 2012-08-21
    • Henricus Marius Joseph Maria KahlmanRalph KurtHaimin Tao
    • Henricus Marius Joseph Maria KahlmanRalph KurtHaimin Tao
    • H05B33/08
    • H05B33/0815H05B33/083
    • A LED light source comprises a first rectifier (DB1) having input terminals coupled to an AC voltage source and output terminals connected by a first series arrangement comprising N LED loads and further comprises circuitry (I1, I2, I3, CC) for making the LED loads one by one carry a current when the momentary value of the AC voltage increases and one by one stop carrying a current when the momentary value of the AC voltage decreases. The LED light source also comprises a second rectifier (DB2) having input terminals coupled to the AC voltage source via a reactive element and LED1 LED2 LED3 output terminals connected by a second series arrangement comprising M LED loads and further comprises circuitry (I4) for making the LED loads one by one carry a current when the momentary value of the AC voltage present at the input terminals of the second rectifier increases and one by one stop carrying a current when the momentary value of the AC voltage decreases.
    • LED光源包括具有耦合到AC电压源的输入端和通过包括N个LED负载的第一串联装置连接的输出端的第一整流器(DB1),并且还包括用于制造LED的电路(I1,I2,I3,CC) 当交流电压的瞬时值增加时,逐个负载一个负载一个电流,并且当交流电压的瞬时值减小时一个接一个地停止传输电流。 LED光源还包括具有经由电抗元件耦合到AC电压源的输入端的第二整流器(DB2),以及由包括M LED负载的第二串联装置连接的LED1 LED2 LED3输出端子,并且还包括用于制造的电路(I4) 当交流电压的瞬时值减小时,当第二整流器的输入端存在的交流电压的瞬时值增加时,一个接一个地负载电流。
    • 35. 发明申请
    • LED LIGHT SOURCE
    • LED光源
    • US20140015430A1
    • 2014-01-16
    • US14006979
    • 2012-03-19
    • Ralph KurtHaimin TaoMartinus Petrus Creusen
    • Ralph KurtHaimin TaoMartinus Petrus Creusen
    • H05B33/08
    • H05B33/083
    • A series arrangement of LED loads (LP1-LP4) is coupled between output terminals of a rectifier having its input terminals coupled to a mains supply supplying a low frequency AC voltage. Control means render the LED loads conductive one by one, when the amplitude of the supply voltage increases, and non-conductive one by one when the amplitude of the supply voltage decreases. The first LED load (LP1, LP2) has a forward voltage that is substantially higher than that of the other LED loads. As a consequence, the LED utilization is comparatively high, thus allowing the LED loads used in the series arrangement to be comparatively cheap.
    • LED负载(LP1-LP4)的串联布置耦合在整流器的输出端子之间,其输入端子耦合到提供低频AC电压的电源。 当电源电压的幅度增加时,控制装置使LED负载一个接一个,当电源电压的幅度减小时,LED逐一导通。 第一个LED负载(LP1,LP2)具有远高于其他LED负载的正向电压。 因此,LED利用率相对较高,从而允许串联装置中使用的LED负载相当便宜。