Dimmable lamp tube
AssigneeXiamen PVTECH Co., Ltd.
InventorsFuxing Lu, Rongtu Liu, Chun Ming Liu
Life of this patent
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Abstract
A dimmable lamp tube is provided, which includes a first lamp head, a second lamp head and a lamp tube body. The first lamp head has a brightness adjustment switch. The second lamp head has a power adjustment switch. The lamp tube body includes a circuit board and a plurality of light-emitting elements. The light-emitting elements are disposed on the circuit board. The circuit board includes a brightness adjustment switch connection terminal and a power adjustment switch connection terminal. The brightness adjustment switch is connected to the brightness adjustment switch connection terminal and the power adjustment switch is connected to the power adjustment switch connection terminal.
Claims6
A dimmable lamp tube, comprising:
- a first lamp head, having a brightness adjustment switch;
- a second lamp head, having a power adjustment switch;
- and
- a lamp tube body, comprising a circuit board and a plurality of light-emitting elements disposed on the circuit board, wherein the circuit board comprises:
- a brightness adjustment switch connection terminal connected to the brightness adjustment switch and a power adjustment switch connection terminal connected to the power adjustment switch;
- a constant-current control circuit connected to the light-emitting elements;
- a rectification filter circuit connected to the constant-current control circuit, wherein the rectification filter circuit comprises a rectification circuit, an anti-EMI circuit, a surge protection circuit;
- a power source input terminal connected to the rectification filter circuit;
- a low-dropout regulating power source circuit connected to the rectification filter circuit;
- and
- a leakage protection circuit connected to the rectification filter circuit and the low-dropout regulating power source circuit.
Dependencies are inferred from the claim text.