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    • 1. 发明授权
    • Light-emitting diode driver
    • 发光二极管驱动器
    • US08461770B2
    • 2013-06-11
    • US12704881
    • 2010-02-12
    • Kyung Hee YeHyun Gu KangDae Sung KalWon Cheol Seo
    • Kyung Hee YeHyun Gu KangDae Sung KalWon Cheol Seo
    • H05B37/02
    • H05B33/0809
    • A light-emitting diode (LED) driver used to power at least one LED with an alternating current (AC) voltage source is provided. The LED driver includes a rectifying unit applying N-fold higher voltage than the voltage from the AC voltage source to the LED. The rectifying unit includes a first charging unit to charge a first voltage, and a second charging unit to charge a second voltage. The first voltage includes the voltage at the AC voltage source during a first half-cycle of one AC voltage cycle, and the second voltage includes the first voltage and the voltage at the AC voltage source during the second half-cycle of the AC voltage cycle. Accordingly, the LED driver may improve light-emitting efficiency and reduce flicker of LEDs.
    • 提供了用于为交流(AC)电压源至少一个LED供电的发光二极管(LED)驱动器。 LED驱动器包括整流单元,其施加比来自AC电压源的电压高出N倍的电压。 整流单元包括对第一电压充电的第一充电单元和用于对第二电压充电的第二充电单元。 第一电压包括在一个交流电压周期的第一个半周期期间的交流电压源处的电压,并且第二电压在交流电压周期的第二个半周期期间包括第一电压和交流电压源处的电压 。 因此,LED驱动器可以提高发光效率并减少LED的闪烁。
    • 2. 发明授权
    • Light emitting diode for AC operation
    • 用于交流操作的发光二极管
    • US08232565B2
    • 2012-07-31
    • US12607644
    • 2009-10-28
    • Chung Hoon LeeDae Won KimDae Sung KalWon Cheol SeoKyung Hee YeYeo Jin Yoon
    • Chung Hoon LeeDae Won KimDae Sung KalWon Cheol SeoKyung Hee YeYeo Jin Yoon
    • H01L33/00
    • H01L27/153H01L33/20H01L33/62H01L2224/48H05B33/0821
    • The present invention discloses a light emitting diode (LED) including a plurality of light emitting cells arranged on a substrate. The LED includes half-wave light emitting units each including at least one light emitting cell, each half-wave light emitting unit including first and second terminals respectively arranged at both ends thereof; and full-wave light emitting units each including at least one light emitting cell, each full-wave light emitting units including third and fourth terminals respectively formed at both ends thereof. The third terminal of each full-wave light emitting unit is electrically connected to the second terminals of two half-wave light emitting units, and the fourth terminal of each full-wave light emitting unit is electrically connected to the first terminals of other two half-wave light emitting units. Also, a first half-wave light emitting unit is connected in series between the third terminal of a first full-wave light emitting unit and the fourth terminal of a second full-wave light emitting units, and a second half-wave light emitting units is connected in series between the fourth terminal of the first full-wave light emitting unit and the third terminal of the second full-wave light emitting unit.
    • 本发明公开了一种发光二极管(LED),其包括布置在基板上的多个发光单元。 LED包括每个包括至少一个发光单元的半波发光单元,每个半波发光单元包括分别布置在其两端的第一和第二端子; 和全波发光单元,每个包括至少一个发光单元,每个全波发光单元包括分别在其两端形成的第三和第四端子。 每个全波发光单元的第三端子电连接到两个半波发光单元的第二端子,并且每个全波发光单元的第四端子电连接到另外两个半波发光单元的第一端子 波发光单元。 此外,第一半波发光单元串联连接在第一全波发光单元的第三端子和第二全波发光单元的第四端子之间,并且第二半波发光单元 串联连接在第一全波发光单元的第四端子和第二全波发光单元的第三端子之间。
    • 4. 发明申请
    • LIGHT EMITTING DIODE FOR AC OPERATION
    • 用于交流操作的发光二极管
    • US20100102336A1
    • 2010-04-29
    • US12607506
    • 2009-10-28
    • Chung-Hoon LeeDae Won KimDae Sung KalWon Cheol SeoKyung Hee YeYeo Jin Yoon
    • Chung-Hoon LeeDae Won KimDae Sung KalWon Cheol SeoKyung Hee YeYeo Jin Yoon
    • H01L33/00
    • H01L27/153H01L33/20H01L33/62H01L2224/48H05B33/0821
    • The present invention discloses a light emitting diode (LED) including a plurality of light emitting cells arranged on a substrate. The LED includes half-wave light emitting units each including at least one light emitting cell, each half-wave light emitting unit including first and second terminals respectively arranged at both ends thereof; and full-wave light emitting units each including at least one light emitting cell, each full-wave light emitting units including third and fourth terminals respectively formed at both ends thereof. The third terminal of each full-wave light emitting unit is electrically connected to the second terminals of two half-wave light emitting units, and the fourth terminal of each full-wave light emitting unit is electrically connected to the first terminals of other two half-wave light emitting units. Also, a first half-wave light emitting unit is connected in series between the third terminal of a first full-wave light emitting unit and the fourth terminal of a second full-wave light emitting units, and a second half-wave light emitting units is connected in series between the fourth terminal of the first full-wave light emitting unit and the third terminal of the second full-wave light emitting unit.
    • 本发明公开了一种发光二极管(LED),其包括布置在基板上的多个发光单元。 LED包括每个包括至少一个发光单元的半波发光单元,每个半波发光单元包括分别布置在其两端的第一和第二端子; 和全波发光单元,每个包括至少一个发光单元,每个全波发光单元包括分别在其两端形成的第三和第四端子。 每个全波发光单元的第三端子电连接到两个半波发光单元的第二端子,并且每个全波发光单元的第四端子电连接到另外两个半波发光单元的第一端子 波发光单元。 此外,第一半波发光单元串联连接在第一全波发光单元的第三端子和第二全波发光单元的第四端子之间,并且第二半波发光单元 串联连接在第一全波发光单元的第四端子和第二全波发光单元的第三端子之间。