US 11,672,062 B2
Illuminating device and method for driving illuminating device
Fanbin Wang, Shanghai (CN); Chengbin Liu, Shanghai (CN); Weihu Chen, Shanghai (CN); Ruojian Zhu, Shanghai (CN); and Chunyu Guo, Shanghai (CN)
Assigned to SAVANT TECHNOLOGIES LLC, East Cleveland, OH (US)
Filed by SAVANT TECHNOLOGIES LLC, East Cleveland, OH (US)
Filed on Aug. 5, 2021, as Appl. No. 17/395,402.
Claims priority of application No. 202010826372.5 (CN), filed on Aug. 17, 2020.
Prior Publication US 2022/0086981 A1, Mar. 17, 2022
Int. Cl. H05B 45/3578 (2020.01); H05B 45/40 (2020.01); H05B 45/34 (2020.01); H05B 45/30 (2020.01)
CPC H05B 45/3578 (2020.01) [H05B 45/30 (2020.01); H05B 45/34 (2020.01); H05B 45/40 (2020.01)] 25 Claims
OG exemplary drawing
 
1. An illuminating device, comprising:
an LED illuminating module;
a mains supply operation module, comprising an LED driving unit; and
a ballast operation module, comprising a simulation filament unit, a first detection unit, a second detection unit, a switch unit, a first start unit and a second start unit;
wherein when the illuminating device is in a mains supply operation mode, the LED driving unit is used for driving the LED illuminating module;
when the illuminating device is in a magnetic ballast operation mode, the first detection unit detects a voltage signal or frequency signal of the simulation filament unit and outputs a first detection signal, and after receiving the first detection signal, the first start unit enables the switch unit to be in a conducting state and drives the LED illuminating module; and
when the illuminating device is in an electronic ballast operation mode, the second detection unit detects a voltage signal or frequency signal across both ends of the illuminating device and outputs a second detection signal, and after receiving the second detection signal, the second start unit enables the switch unit to be in a conducting state and drives the LED illuminating module,
wherein the first start unit comprises a driving resistor for driving the switch unit, a voltage stabilizing circuit, a protection circuit for protecting an isolation sampling module, and a driving circuit for driving the switch unit.