CN202551458U - Conversion module for driving LED (Light-Emitting Diode) by using electronic ballast - Google Patents

Conversion module for driving LED (Light-Emitting Diode) by using electronic ballast Download PDF

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Publication number
CN202551458U
CN202551458U CN2012201825629U CN201220182562U CN202551458U CN 202551458 U CN202551458 U CN 202551458U CN 2012201825629 U CN2012201825629 U CN 2012201825629U CN 201220182562 U CN201220182562 U CN 201220182562U CN 202551458 U CN202551458 U CN 202551458U
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China
Prior art keywords
resistance
current
led
circuit
driving
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Expired - Fee Related
Application number
CN2012201825629U
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Chinese (zh)
Inventor
罗正华
陈永恩
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YONGKANG PUFA TECHNOLOGY CO LTD
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YONGKANG PUFA TECHNOLOGY CO LTD
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Priority to CN2012201825629U priority Critical patent/CN202551458U/en
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Publication of CN202551458U publication Critical patent/CN202551458U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model belongs to the technical field of electronics, in particular to a conversion module for driving an LED (Light-Emitting Diode) by using an electronic ballast. The conversion module is connected between the electronic ballast and an LED array, and is characterized in that the conversion module comprises a high-frequency current-limiting circuit, a rectifying and filtering circuit, an initial voltage-stabilizing circuit and a constant-current driving circuit, wherein the high-frequency current-limiting circuit is used for adjusting high-frequency and high-voltage alternating current at the output end of the electronic ballast; the rectifying and filtering circuit is used for rectifying and filtering into stable direct current; the initial voltage-stabilizing circuit is used for adjusting so as to adapt to an LED driving voltage; the constant-current driving circuit is used for adjusting current control needed by the LED; and the high-frequency current-limiting circuit, the rectifying and filtering circuit, the initial voltage-stabilizing circuit and the constant-current driving circuit are connected in a matching way. Due to the adoption of the conversion module, the defect of high manufacturing cost of the conventional LED driving power supply is overcome; the four output ports of the conventional ordinary electronic ballast are connected with a conversion controller which is necessary for driving the LED, so that the LED can be driven; and the conversion controller has an adaptive adjusting function, and stable constant current is provided for various LED loads.

Description

The modular converter of electric ballast driving LED
Technical field
The utility model belongs to electronic technology field, is specially a kind of modular converter of electric ballast driving LED.
Background technology
LED has advantages such as power consumption is little, long service life, extensively has been utilized in fields such as illumination, demonstration, like LED illuminating lamp, LED display, LED lamp decoration or the like.Along with the pay attention to day by day of country to green light source, the market and the application prospect of LED product are boundless.
Because LED uses direct voltage drive, can not directly use line voltage, must convert the LED driving power of direct voltage with line voltage to.
Current LED driving power basically all is the constant-current driving power supply with the Switching Power Supply form, but generally all has the high shortcoming of cost cost.And it is well-known; Existing 20 years of development in fluorescent lamp AC electron ballast are historical; Very ripe already technically; The cost cost is also quite reasonable, and the cost of electric ballast has only 1/3rd of LED driving switch power supply cost under equal power condition, so utilize the electric ballast driving LED to have a lot of advantages.
The utility model content
To the problem that exists in the prior art, the purpose of the utility model is to provide a kind of technical scheme of modular converter of electric ballast driving LED.
The modular converter of described electric ballast driving LED; This modular converter is connected between electric ballast and the led array; It is characterized in that described modular converter comprises the high frequency current-limiting circuit that is used to regulate electronic ballast output end high-frequency and high-voltage alternating current, is used for current rectifying and wave filtering circuit that rectifying and wave-filtering becomes steady direct current, is used to regulate the initial voltage stabilizing circuit that adapts to the LED driving voltage and be used to regulate the required constant-current drive circuit with Current Control of LED, described high frequency current-limiting circuit, current rectifying and wave filtering circuit, initially voltage stabilizing circuit and constant-current drive circuit are connected.
The modular converter of described electric ballast driving LED; It is characterized in that described high frequency current-limiting circuit is made up of resistance R 1, resistance R 2, resistance R 3, resistance R 4 and inductance L; Current rectifying and wave filtering circuit is made up of rectifier bridge and capacitor C that diode D1, diode D2, diode D3, diode D4 form; Initial voltage stabilizing circuit is made up of resistance R 5, resistance R 6, voltage stabilizing didoe D6 and triode Q1, and constant-current drive circuit is made up of current regulator diode D5 and resistance R 7.
The modular converter of described electric ballast driving LED; It is characterized in that four outputs of described electric ballast connect resistance R 1 one ends, resistance R 2 one ends, resistance R 3 one ends and resistance R 4 one ends of high frequency current-limiting circuit in the modular converter respectively; Resistance R 1 other end is connected an end of inductance L with resistance R 2 other ends; The other end of inductance L connects rectifier bridge and imports an end; Resistance R 3 other ends are connected the rectifier bridge input other end with resistance R 4 other ends, rectification bridge output end shunt capacitance C forms steady direct voltage; Rectifier bridge output cathode end connects resistance R 5 one ends and triode Q1 collector electrode; Resistance R 5 other ends connect resistance R 6 one ends and voltage stabilizing didoe D6 negative pole end respectively; Resistance R 6 other ends connect triode Q1 base stage; Voltage stabilizing didoe D6 positive terminal connects rectifier bridge output negative pole end, constitutes initial voltage stabilizing circuit; Triode Q1 emitter connects current regulator diode D5 positive terminal, and rectifier bridge output negative pole end connects resistance R 7 one ends, and resistance R 7 other ends connect the led array negative pole end, and current regulator diode D5 negative pole end connects the led array positive terminal, constitutes the LED constant-current drive circuit.
The modular converter of described electric ballast driving LED is characterized in that described led array is formed by at least two LED serial connections, and LED is plug-in unit or patch light-emitting diode.
The utility model has overcome the high shortcoming of existing LED driving power cost cost; The utility model four output ports of existing ordinary electronic ballast connect LED drive necessary switching controller just can driving LED; This switching controller has the adaptation regulatory function, for various LED loads provide stable constant current.The real purpose that realizes directly replacing day closing fluorescent tube on the lamp bracket of original charged sub-ballast and do not change All other routes; Directly change turning off the light 16W LED day and can using of charged sub-ballast modular converter like the 40W fluorescent tube.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with Figure of description the utility model is further specified:
The modular converter of electric ballast driving LED; This modular converter is connected between electric ballast and the led array; Modular converter comprises the high frequency current-limiting circuit that is used to regulate electronic ballast output end high-frequency and high-voltage alternating current, be used for current rectifying and wave filtering circuit that rectifying and wave-filtering becomes steady direct current, be used to regulate the initial voltage stabilizing circuit that adapts to the LED driving voltage and be used to regulate the required constant-current drive circuit with Current Control of LED, and high frequency current-limiting circuit, current rectifying and wave filtering circuit, initially voltage stabilizing circuit and constant-current drive circuit are connected.Wherein, The high frequency current-limiting circuit is made up of resistance R 1, resistance R 2, resistance R 3, resistance R 4 and inductance L; Current rectifying and wave filtering circuit is made up of rectifier bridge and capacitor C that diode D1, diode D2, diode D3, diode D4 form; Initial voltage stabilizing circuit is made up of resistance R 5, resistance R 6, voltage stabilizing didoe D6 and triode Q1, and constant-current drive circuit is made up of current regulator diode D5 and resistance R 7.
Concrete annexation is following: four outputs of electric ballast connect resistance R 1 one ends, resistance R 2 one ends, resistance R 3 one ends and resistance R 4 one ends of high frequency current-limiting circuit in the modular converter respectively; Resistance R 1 other end is connected an end of inductance L with resistance R 2 other ends; The other end of inductance L connects rectifier bridge and imports an end; Resistance R 3 other ends are connected the rectifier bridge input other end with resistance R 4 other ends, rectification bridge output end shunt capacitance C forms steady direct voltage; Rectifier bridge output cathode end connects resistance R 5 one ends and triode Q1 collector electrode; Resistance R 5 other ends connect resistance R 6 one ends and voltage stabilizing didoe D6 negative pole end respectively; Resistance R 6 other ends connect triode Q1 base stage; Voltage stabilizing didoe D6 positive terminal connects rectifier bridge output negative pole end, constitutes initial voltage stabilizing circuit; Triode Q1 emitter connects current regulator diode D5 positive terminal, and rectifier bridge output negative pole end connects resistance R 7 one ends, and resistance R 7 other ends connect the led array negative pole end, and current regulator diode D5 negative pole end connects the led array positive terminal, constitutes the LED constant-current drive circuit.
The utility model led array is formed by at least two LED serial connections, and LED is plug-in unit or patch light-emitting diode.
The utility model has overcome the high shortcoming of existing LED driving power cost cost; Four output ports of existing ordinary electronic ballast connect LED drive necessary switching controller just can driving LED; This switching controller has the adaptation regulatory function, for various LED loads provide stable constant current.

Claims (4)

1. the modular converter of electric ballast driving LED; This modular converter is connected between electric ballast and the led array; It is characterized in that described modular converter comprises the high frequency current-limiting circuit that is used to regulate electronic ballast output end high-frequency and high-voltage alternating current, is used for current rectifying and wave filtering circuit that rectifying and wave-filtering becomes steady direct current, is used to regulate the initial voltage stabilizing circuit that adapts to the LED driving voltage and be used to regulate the required constant-current drive circuit with Current Control of LED, described high frequency current-limiting circuit, current rectifying and wave filtering circuit, initially voltage stabilizing circuit and constant-current drive circuit are connected.
2. the modular converter of electric ballast driving LED according to claim 1; It is characterized in that described high frequency current-limiting circuit is made up of resistance R 1, resistance R 2, resistance R 3, resistance R 4 and inductance L; Current rectifying and wave filtering circuit is made up of rectifier bridge and capacitor C that diode D1, diode D2, diode D3, diode D4 form; Initial voltage stabilizing circuit is made up of resistance R 5, resistance R 6, voltage stabilizing didoe D6 and triode Q1, and constant-current drive circuit is made up of current regulator diode D5 and resistance R 7.
3. the modular converter of electric ballast driving LED according to claim 1; It is characterized in that four outputs of described electric ballast connect resistance R 1 one ends, resistance R 2 one ends, resistance R 3 one ends and resistance R 4 one ends of high frequency current-limiting circuit in the modular converter respectively; Resistance R 1 other end is connected an end of inductance L with resistance R 2 other ends; The other end of inductance L connects rectifier bridge and imports an end; Resistance R 3 other ends are connected the rectifier bridge input other end with resistance R 4 other ends, rectification bridge output end shunt capacitance C forms steady direct voltage; Rectifier bridge output cathode end connects resistance R 5 one ends and triode Q1 collector electrode; Resistance R 5 other ends connect resistance R 6 one ends and voltage stabilizing didoe D6 negative pole end respectively; Resistance R 6 other ends connect triode Q1 base stage; Voltage stabilizing didoe D6 positive terminal connects rectifier bridge output negative pole end, constitutes initial voltage stabilizing circuit; Triode Q1 emitter connects current regulator diode D5 positive terminal, and rectifier bridge output negative pole end connects resistance R 7 one ends, and resistance R 7 other ends connect the led array negative pole end, and current regulator diode D5 negative pole end connects the led array positive terminal, constitutes the LED constant-current drive circuit.
4. the modular converter of electric ballast driving LED according to claim 1 is characterized in that described led array is formed by at least two LED serial connections, and LED is plug-in unit or patch light-emitting diode.
CN2012201825629U 2012-04-26 2012-04-26 Conversion module for driving LED (Light-Emitting Diode) by using electronic ballast Expired - Fee Related CN202551458U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201825629U CN202551458U (en) 2012-04-26 2012-04-26 Conversion module for driving LED (Light-Emitting Diode) by using electronic ballast

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201825629U CN202551458U (en) 2012-04-26 2012-04-26 Conversion module for driving LED (Light-Emitting Diode) by using electronic ballast

Publications (1)

Publication Number Publication Date
CN202551458U true CN202551458U (en) 2012-11-21

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Application Number Title Priority Date Filing Date
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT14727U1 (en) * 2013-01-23 2016-04-15 Tridonic Gmbh & Co Kg LED module, luminaire and method for operating an LED module
CN108886853A (en) * 2016-03-31 2018-11-23 飞利浦照明控股有限公司 Conversion circuit between flourescent ballast and LED
CN110032103A (en) * 2019-04-09 2019-07-19 广西俊锦科技有限公司 Intelligent building monitoring system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT14727U1 (en) * 2013-01-23 2016-04-15 Tridonic Gmbh & Co Kg LED module, luminaire and method for operating an LED module
CN108886853A (en) * 2016-03-31 2018-11-23 飞利浦照明控股有限公司 Conversion circuit between flourescent ballast and LED
CN110032103A (en) * 2019-04-09 2019-07-19 广西俊锦科技有限公司 Intelligent building monitoring system

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121121

Termination date: 20150426

EXPY Termination of patent right or utility model