Unlock instant, AI-driven research and patent intelligence for your innovation.

lighting device

A technology for lighting devices and driving devices, which is applied to lighting devices, semiconductor lamps, electroluminescent light sources, etc., can solve problems such as waste, difficulty in reducing preheating current, and consumption, so as to reduce energy loss and improve compatibility. , the effect of reducing the filament current

Inactive Publication Date: 2021-05-25
LEDVANCE GMBH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if a resistor is connected downstream of the preheating circuit to reduce the preheating current, it is difficult to reduce the preheating current to the desired level, and the resistor will cause undesired power consumption and waste

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • lighting device
  • lighting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] figure 1 A schematic functional block diagram of the lighting device 100 according to the embodiment of the present invention is shown. The lighting device 100 according to the present invention includes a ballast 1, a driving device 2 connected downstream of the ballast 1, and a lighting load 3, wherein the ballast 1 of the lighting device 100 according to the present invention includes a first coil unit 11 and the second coil unit 12 coupled with the first coil unit 11 in a mutual inductance manner. The driving device 2 includes an auxiliary module 21 and a driving module 22 connected to the auxiliary module 21 , wherein the auxiliary module 21 can be directly connected to the ballast 1 . The ballast 1 of the lighting device 100 according to the present invention can be used for conventional fluorescent lamps. The first coil unit 11 of the ballast 1 can receive a supply current from the power supply, and the auxiliary module 21 processes the current from the first c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a lighting device, comprising a ballast, a driving device connected to the ballast, and a lighting load driven by the driving device, wherein the ballast includes a first coil unit and is coupled to the first coil unit. The second coil unit, wherein the first coil unit outputs the first current from the power supply to the driving device and the second coil unit, and the second coil unit outputs the second current to the driving device according to the first current, wherein the driving device It includes an auxiliary module receiving the first current and the second current, wherein the auxiliary module is designed to reduce the resonant frequency of the second coil unit to reduce the second current.

Description

technical field [0001] The present invention relates to a lighting device, especially an LED lighting device, wherein the LED lighting device includes a ballast, a driving device connected with the ballast, and a lighting load driven by the driving device. Background technique [0002] In traditional lighting installations, an electronic ballast (ECG) is provided. The electronic ballast is designed to work with a fluorescent lamp as a load, and provides high-frequency current from a power supply to the fluorescent lamp. The fluorescent lamp is usually preheated, ignited, and A sequence that works normally starts running normally. The resistance of the filament in a fluorescent lamp is usually only a few ohms in the cold state, but after the filament is heated by the current passing through it, the resistance of the filament increases to at least four times its original resistance. For this reason, the preheating circuit designed in the electronic ballast can provide preheat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H05B45/357H05B44/00
CPCH05B45/37Y02B20/30H05B47/00
Inventor 杨旭生黄凯纯
Owner LEDVANCE GMBH