US 11,659,640 B2
Lighting apparatus
Yisheng Zheng, Fujian (CN); Qiqiang Lin, Fujian (CN); Hemu Ye, Fujian (CN); Yibin Chen, Fujian (CN); Zongyuan Liu, Fujian (CN); and Yankun Li, Fujian (CN)
Assigned to LEEDARSON LIGHTING CO., LTD., Fujian (CN)
Filed by LEEDARSON LIGHTING CO., LTD., Fujian (CN)
Filed on Jan. 26, 2022, as Appl. No. 17/584,856.
Claims priority of application No. 202110120401.0 (CN), filed on Jan. 28, 2021.
Prior Publication US 2022/0240359 A1, Jul. 28, 2022
Int. Cl. H05B 45/36 (2020.01); H05B 47/19 (2020.01); H05B 45/10 (2020.01); H05B 45/20 (2020.01)
CPC H05B 45/36 (2020.01) [H05B 45/20 (2020.01); H05B 47/19 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A lighting apparatus, comprising:
a light source with multiple LED modules with different light parameters;
a silicon controlled rectifier for filtering a filtering ratio of an input AC power to a filtered AC power, wherein the filtering ratio is associated with a control angle by supplying a control voltage to the silicon controlled rectifier, wherein the control angle determines a volume of the filtered AC power;
a rectifier coupled to the silicon controlled rectifier for converting the filtered AC power to a DC power;
a maintainer circuit for maintaining a working current for the silicon controlled rectifier when the control angle reduces the volume of the filtered AC power below a threshold; and
a current source circuit for receiving the DC power, wherein the current source circuit has a wall switch input for connecting to a wall switch, wherein an on-off input pattern of the wall switch is detected by the current source circuit for generating multiple corresponding driving currents respectively supplied to the multiple LED modules to generate a mixed light parameter.