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A conversion circuit and lamp compatible with fluorescent lamp ballast

A conversion circuit and ballast technology, applied in the direction of electric lamp circuit layout, light source, electric light source, etc., can solve the problems of not being able to connect directly to electricity, troublesome installation and replacement, troublesome use and replacement, etc., to achieve cost reduction, convenient replacement, The effect of high work efficiency

Inactive Publication Date: 2017-08-18
JINGSAM ILLUMINATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the popularization of modern LED lighting, LED lamps have entered the household era. However, household fluorescent lamps are generally fluorescent lamps. These lamps are generally equipped with inductive or electronic ballasts, and LED fluorescent lamps are generally not compatible with this type of lamps. ballast, which brings troubles to installation and replacement. It needs to be disassembled and changed wiring during installation. Once the LED lamp is broken, it cannot be connected with a traditional fluorescent lamp for emergency, which brings troubles to use and replacement.
[0003]In the prior art, there are already some LED lamp devices compatible with fluorescent lamp ballasts, but they can only be compatible with one-to-multiple ballasts and cannot be directly connected Electricity, but can not be compatible with 1 tow multi-type ballasts when it can be directly connected to electricity, which requires a device that can be fully compatible with direct connection and 1 tow multi-type ballasts

Method used

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  • A conversion circuit and lamp compatible with fluorescent lamp ballast
  • A conversion circuit and lamp compatible with fluorescent lamp ballast
  • A conversion circuit and lamp compatible with fluorescent lamp ballast

Examples

Experimental program
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specific Embodiment 1

[0027] like figure 1 The block diagram of a conversion circuit compatible with a fluorescent lamp ballast is shown, including a rectification module 06, a switching module, and an LED driver module 05; the output end of the rectification module 06 is connected to the input end of the switching module; the The output terminal of the switching module is connected to the input terminal of the LED driver module 05; the rectifying module 06 is used to convert the alternating current of the external power supply into direct current and output it; the voltage value output by the switching module at the rectifying module 06 is low Impedance switching is performed at a preset threshold to increase the equivalent impedance of the conversion circuit.

[0028] like figure 2 The schematic diagram of the switching module shown, the switching module includes a linear voltage stabilizing module 03, a voltage detection module 01, and a self-locking switching control module; the linear voltag...

specific Embodiment 2

[0040] An LED lamp compatible with a fluorescent lamp ballast includes an LED module and a conversion circuit compatible with the fluorescent lamp ballast, and the output end of the LED driving module 05 is connected to the LED module.

[0041] The output end of the HV9910 chip is connected to the LED light.

[0042] In this embodiment, the switch working state and the linear working state of the HV9910 chip are mainly used. The working state of the switch means that when the voltage of the internal power supply terminal VDD of the HV9910 chip is greater than the undervoltage lockout voltage threshold UVLO of VDD, the drive output terminal DRV outputs a high level, and at this time the output current is limited by the external third field effect transistor M3. works with peak current.

[0043] The linear working state means that when the voltage of the linear dimming terminal LD ​​of the HV9910 chip is lower than 250mV, the HV9910 chip continuously adjusts the output current ...

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Abstract

The invention discloses a conversion circuit compatible with fluorescent lamp ballasts, which comprises a rectification module, a switching module and an LED drive module; the output end of the rectification module is connected to the input end of the switching module; the output end of the switching module connected to the input end of the LED drive module; the rectifier module is used to convert the AC power of the external power supply into DC power and output it; the switching module performs Impedance switching increases the equivalent impedance of the conversion circuit. The invention also discloses an LED lamp compatible with a fluorescent lamp ballast, which includes an LED module and a conversion circuit of the above-mentioned compatible fluorescent lamp ballast, and the output terminal of the LED driving module is connected with the LED module. The LED lamp adopting the conversion circuit of the present invention is fully compatible with the direct connection to electricity and the 1-to-1 and 1-to-multi-type ballasts of the existing fluorescent lamps. The lamp has the advantages of simple and efficient design, convenient replacement and low cost.

Description

technical field [0001] The invention relates to the technical field of lighting devices, in particular to a conversion circuit compatible with a fluorescent lamp ballast and a lamp. Background technique [0002] With the popularization of modern LED lighting, LED lamps have entered the household era. However, household fluorescent lamps are generally fluorescent lamps. These lamps are generally equipped with inductive or electronic ballasts, and LED fluorescent lamps are generally not compatible with this type of lamps. ballast, which brings troubles to installation and replacement. It needs to be disassembled and changed wiring during installation. Once the LED lamp is broken, it cannot be connected with a traditional fluorescent lamp for emergency, which brings troubles to use and replacement. [0003] In the prior art, there are already some LED lamp devices compatible with fluorescent lamp ballasts, but they can only be compatible with 1-to-multi-type ballasts and cannot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02
Inventor 郑淑子
Owner JINGSAM ILLUMINATION