Simulation filament impedance circuit, LED lamp tube, and LED illuminating system
Patent Information
- Authority / Receiving Office
- CN ยท China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- OPPLE LIGHTING
- Publication Date
- 2016-11-09
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Abstract
Description
technical field
[0001] The invention relates to the lighting field, in particular to an analog filament impedance circuit, an LED lamp tube and an LED lighting system. Background technique
[0002] Light Emitting Diode (LED for short) light source has been widely concerned and applied due to its advantages of small size, high brightness, low power consumption and long service life. a trend.
[0003] Traditional fluorescent lamps cannot be directly connected to the mains to work, and a ballast needs to be added between the mains and the traditional fluorescent lamps. According to different operating frequencies, ballasts mainly include magnetic ballasts and electronic ballasts. Among them, magnetic ballasts output low-frequency voltage and low-frequency current, generally at 50 / 60Hz, and electronic ballasts output high Frequency voltage and high frequency current, generally above 20kHz. In the prior art, the method of replacing traditional fluorescent lamps with LED lamps ...