CPC H05B 45/3578 (2020.01) [H05B 45/30 (2020.01); H05B 45/34 (2020.01); H05B 45/40 (2020.01)] | 25 Claims |
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.
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