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公开(公告)号：US09872348B2
公开(公告)日：2018-01-16
申请号：US15161328
申请日：2016-05-23
Applicant: PHILIPS LIGHTING HOLDING B.V.
Inventor： Kumar Arulandu , Johan-Paul Marie Gerard Linnartz , Eugen Jacob De Mol , Dmytro Viktorovych Malyna , Henricus Marius Joseph Maria Kahlman
IPC: H05B33/08
CPC classification number: H05B33/0815 , H05B33/083 , Y02B20/346
Abstract: A lighting circuit and a method of operating a lighting circuit are described. A rectifier 14 has an input for an alternating voltage V. At least a first and a second LED assembly 20, 22 are connected to be supplied with electrical power from the rectifier 14. The first LED assembly 20 is electrically connected to a first output 26 of the rectifier 14 and electrically connected in series with an input 36 of a switching converter circuit. The second LED assembly 22 is electrically connected to an output 48 of the switching converter circuit 44. A control assembly 30 is connected to a tap 46 in the series connection for controlling operation of the first LED assembly 20.
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公开(公告)号：US09516720B2
公开(公告)日：2016-12-06
申请号：US15030579
申请日：2014-11-04
Applicant: PHILIPS LIGHTING HOLDING B.V.
IPC: H05B37/00 , H05B39/00 , H05B41/14 , H05B33/08 , F21V29/70 , F21V23/00 , H01L33/64 , H01L33/62 , H01L33/54 , H01L33/48 , H01L25/075 , F21Y101/02 , F21Y103/00
CPC classification number: H05B33/089 , F21V23/003 , F21V29/70 , F21Y2101/00 , F21Y2103/10 , F21Y2115/10 , H01L25/0753 , H01L33/486 , H01L33/54 , H01L33/62 , H01L33/642 , H01L2224/48247 , H01L2924/181 , H05B33/083 , H05B33/0884 , Y02B20/341 , H01L2924/00012
Abstract: The invention describes a surge-protection arrangement (1) for an electronic device (3) comprising a heat-dissipating load (10) thermally connected to a heat sink (107) of the load (10), which surge protection arrangement (1) comprises at least one high impedance arrangement (ZHI, ZHI_N, ZHI_P) connected in series with the load (10); at least one low impedance arrangement (ZLO, ZLO_N, ZLO_P) connected in parallel with the load (10); and a ground connection (FE) arranged to electrically connect the heat sink (107) and a low impedance arrangement (ZLO, ZLO_N, ZLO_P); wherein the high-impedance arrangement (ZHI, ZHI_N, ZH_IP) is realized to discourage a common-mode surge current (Is) from entering the load (10), and the low-impedance arrangement (ZLO, ZLO_N, ZLO_P) is realized to encourage a common-mode surge current (Is) to bypass the load (10) into a ground connection (FE). The invention further describes an electronic device (3) comprising a load (10) with a number of heat-dissipating components (100) thermally connected to a heat sink (107) of the load (10); a driver (20) realized to drive the load (10); and such a surge protection arrangement (1). The invention also describes a driver (20) realized to drive an LED lighting circuit (10) and comprising such a surge protection arrangement (1); and a method of providing protection against a common-mode surge current (Is) through an electronic device (3) comprising a heat-dissipating load (10) thermally connected to a heat sink (107) of the load (10).
Abstract translation: 本发明描述了一种用于电子设备（3）的浪涌保护装置（1），其包括热连接到负载（10）的散热器（107）的散热负载（10），所述浪涌保护装置（1） 包括与所述负载（10）串联连接的至少一个高阻抗布置（ZHI，ZHI_N，ZHI_P）; 与负载（10）并联连接的至少一个低阻抗布置（ZLO，ZLO_N，ZLO_P）; 以及布置成电连接散热器（107）和低阻抗布置（ZLO，ZLO_N，ZLO_P）的接地连接（FE）; 实现高阻抗布置（ZHI，ZHI_N，ZH_IP）以阻止共模浪涌电流（Is）进入负载（10），并且实现低阻抗布置（ZLO，ZLO_N，ZLO_P）到 鼓励共模浪涌电流（Is）将负载（10）旁路到接地连接（FE）中。 本发明还描述了一种电子设备（3），其包括具有与所述负载（10）的散热器（107）热连接的多个散热部件（100）的负载（10）。 实现驱动负载（10）的驱动器（20）; 和这种浪涌保护装置（1）。 本发明还描述了实现驱动LED照明电路（10）并包括这种浪涌保护装置（1）的驱动器（20）。 以及通过包括热连接到负载（10）的散热器（107）的散热负载（10）的电子设备（3）提供针对共模浪涌电流（Is）的保护的方法。
