STARTUP CONTROL CIRCUIT FOR LED LIGHTS

WIPO Patent Application WO/2018/023490

A1

A startup control circuit for LED lights is used for controlling N LED light groups. The startup control circuit comprises: an external power supply (3), a control circuit (11), a drive circuit (13), a first switch (21), a second switch (22), and a delay circuit (12). The first switch (21) is connected between the external power supply (3) and the control circuit (11). The control circuit (11), the delay circuit (12) and the drive circuit (13) are connected in series in this order. The second switch (22) comprises a movable end (221) and the first to Nth immovable ends (222, 223). The movable end (221) of the second switch (22) is connected to the drive circuit (13), and the first to the Nth immoveable ends (222, 223) of the second switch (22) are each connected to the first to Nth LED light groups (4, 5). The delay circuit (12) is used to delay the time for the current of the external power supply (3) to flow into the drive circuit (13), after passing through the control circuit (11). The startup control circuit has a simple structure and a relatively low cost.

WO/2015/055759	METHOD AND DEVICE FOR COMMUNICATION IN A LIGHTING SYSTEM
WO/2016/093486	UNIVERSAL AC LED DRIVER

YUAN ZHIXIAN (CN)

PCT/CN2016/093056

February 08, 2018

August 03, 2016

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YUAN ZHIXIAN (CN)

H05B37/02

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CN106455188A	2017-02-22
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CN103517514A	2014-01-15
CN205378270U	2016-07-06
CN205124059U	2016-03-30
US20160057841A1	2016-02-25

SHENZHEN YUANHANG INTELLECTUAL PROPERTY OFFICE (GENERAL PARTNER) (CN)

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