CN203563242U - LED light source compatible type drive for T5 tube - Google Patents
LED light source compatible type drive for T5 tube Download PDFInfo
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- CN203563242U CN203563242U CN201320718085.8U CN201320718085U CN203563242U CN 203563242 U CN203563242 U CN 203563242U CN 201320718085 U CN201320718085 U CN 201320718085U CN 203563242 U CN203563242 U CN 203563242U
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Abstract
The utility model relates to an LED light source compatible type drive for a T5 tube. The LED light source compatible type drive is characterized in that a power supply is connected with a power supply detection unit and a rectification unit and is then divided into two ways, one way passes through a high frequency control unit and drives an LED lamp set, the other way passes through a power frequency commercial power control unit and a constant current switch power supply unit in sequence and then drives the LED lamp set, the power supply detection unit is a transformer T1 of three windings, the current is outputted to a high frequency self-locking unit by a secondary first winding, the output of the high frequency self-locking unit inhibits the operation state of the power frequency commercial power control unit, the conduction state of the power frequency commercial power control unit is maintained by a feedback signal outputted by the constant current switch power supply unit, and the current is outputted to the high frequency control unit by a secondary second winding of the power supply detection unit so that the conduction or break of the high frequency control unit is controlled. According to the LED light source compatible type drive, power supply modes of the LED lamp set are automatically switched according to different input conditions of the commercial power or an electronic rectifier so that the LED lamp set can be guaranteed to operate stably and reliably in two states, lamp beads glow synchronously and stably, the brightness is uniform, and the luminous efficiency is high.
Description
Technical field:
The utility model belongs to lighting field, be particularly related to a kind of T5 fluorescent tube LED light source compatible type driver, especially replaceable fluorescent tube, be directly installed on fluorescent lamp holder, without the direct alternative of removing electron rectifier, also can directly access civil power, and can be according to power supply state, automatic switchover operational module.
Background technology:
Because LED fluorescent tube is than straight tube fluorescent streetlamp energy-saving 50%, along with the development of LED technology, energy-conservation ratio also will continue to improve, and fluorescent tube average life is short, and containing reasons such as mercury pollution, straight tube fluorescent lamp is just progressively replaced by LED fluorescent tube.LED fluorescent tube also needs supporting drive circuit, and because T5 diameter is little, spatial limitation cannot pack efficient driving power into.LED T5 product exists light efficiency low, the problem of poor reliability.How to provide the driver of a kind of high reliability, long service life supporting with it, also can facilitate user to change use, become the object of the utility model research.
Under stable state, the electron rectifier of gas fluorescent tube is output as high-frequency constant current source.
Civil power is 100-260V, the low frequency ac of 50/60Hz.
Summary of the invention:
The purpose of this utility model is that design one can be according to power supply state, the T5 fluorescent tube LED light source compatible type driver of the pattern that automatically changes jobs.
Technical solutions of the utility model are achieved in that a kind of T5 fluorescent tube LED light source compatible type driver, it is characterized in that power supply access point two-way after power supply detecting unit, rectification unit, one tunnel is through high frequency control unit rear drive LED lamp group, and another road is successively through power frequency city electric control unit, constant-current switch power source unit rear drive LED lamp group; The transformer T1 that described power supply detecting unit is three windings, secondary the first winding is exported to high frequency from lock unit, high frequency suppresses power frequency city electric control unit operating state from lock unit output, and the feedback signal that this power frequency city electric control unit conducting state is exported by constant-current switch power source unit maintains; Secondary the second winding of described power supply detecting unit is exported to high frequency control unit, controls high frequency control unit conducting or disconnection.
Described rectification unit is the rectifier bridge of four high-frequency diode D1-D4 compositions; Described high frequency control unit is diode D5, resistance R 1, capacitor C 1 and voltage-stabiliser tube Z1 composition integrating circuit, controls conducting and the cut-off of controllable silicon Q1; Described high frequency is comprised of resistance R 2, diode D6 and voltage stabilizing benchmark triode Q3 from lock unit, when detecting unit is output as high level, during the conducting of high frequency control unit, R2 holds input high level, voltage stabilizing prover pipe Q3 conducting, suppressed the control end voltage of power frequency city electric control unit, made it to be less than the unlatching threshold value of Z2, locking power frequency city electric control unit is in off-state; Described power frequency city electric control unit, is comprised of controllable silicon Q2, voltage-stabiliser tube Z2, diode D7, resistance R 3, R4, R5 and capacitor C 2; Described switching power supply is by resistance R 6-R14, capacitor C 4-C6, the constant-current supply of the former limit of the auto-excitation type feedback of constant current control IC U1, metal-oxide-semiconductor Q4, diode D9 and transformer T2 composition, and output provides constant-current supply to after filtering LED lamp group.
Driver of the present invention adopts two-way to drive power supply to LED lamp group, makes LED fluorescent tube can directly replace fluorescent tube, is arranged on fluorescent lamp holder, be operated in electron rectifier rear end, can make full use of conventional fluorescent lamp bracket, without carrying out track remodelling, directly replace and use; Also can, directly by mains-supplied, realize seamless compatibility; And coordinate switch control unit, and according to civil power or the different input conditions of electron rectifier, the powering mode of automatic switchover LED lamp group, to guarantee under two states, the consistency of LED lamp group light efficiency; Lamp pearl is luminous synchronous, and stable, brightness is even, and light efficiency is high.
Accompanying drawing explanation:
Below in conjunction with concrete legend, the utility model is described further:
Fig. 1 driver principles block diagram
Fig. 2 drive circuit figure
Fig. 3 driver connects civil power equivalent circuit diagram
Fig. 4 driver connects electric ballast equivalent circuit diagram
Embodiment:
With reference to Fig. 1, T5 fluorescent tube LED light source compatible type driver, it includes power supply signal detecting unit, rectification unit, high frequency control unit, power frequency city electric control unit, constant-current switch power source unit, high frequency is from lock unit and LED lamp set unit; Power supply access is point two-way after power supply detecting unit, rectification unit, and a road is through high frequency control unit rear drive LED lamp group, and another road is successively through power frequency city electric control unit, constant-current switch power source unit rear drive LED lamp group; The transformer T1 that described power supply detecting unit is three windings, secondary the first winding is exported to high frequency from lock unit, high frequency suppresses power frequency city electric control unit operating state from lock unit output, and the feedback signal that this power frequency city electric control unit conducting state is exported by constant-current switch power source unit maintains; Secondary the second winding of described power supply detecting unit is exported to high frequency control unit, controls high frequency control unit conducting or disconnection.
See figures.1.and.2, described rectification unit is the rectifier bridge of four high-frequency diode D1-D4 compositions; Described high frequency control unit is diode D5, resistance R 1, capacitor C 1 and voltage-stabiliser tube Z1 composition integrating circuit, controls conducting and the cut-off of controllable silicon Q1; When power supply signal detecting unit is output as high level, by integrating circuit integration, cumulative voltage, when voltage exceeds voltage-stabiliser tube Z1 threshold value, voltage-stabiliser tube Z1 conducting, pressurizes to controllable silicon Q1, controllable silicon Q1 conducting, the conducting of high frequency control unit.This state is for being connected on electric ballast rear end, and high frequency electrical signal, after rectification unit, high frequency control unit, is directly the power supply of LED lamp group, and its equivalent electric circuit is as Fig. 4.
Described high frequency is comprised of resistance R 2, diode D6 and voltage stabilizing benchmark triode Q3 from lock unit, when detecting unit is output as high level, during the conducting of high frequency control unit, R2 holds input high level, voltage stabilizing prover pipe Q3 conducting, suppressed the control end voltage of power frequency city electric control unit, made it to be less than the unlatching threshold value of Z2, locking power frequency city electric control unit is in off-state.
Described power frequency city electric control unit, is comprised of controllable silicon Q2, voltage-stabiliser tube Z2, diode D7, resistance R 3, R4, R5 and capacitor C 2; Described switching power supply is by resistance R 6-R14, capacitor C 4-C6, the constant-current supply of the former limit of the auto-excitation type feedback of constant current control IC U1, metal-oxide-semiconductor Q4, diode D9 and transformer T2 composition, and output provides constant-current supply to after filtering LED lamp group.When being input as the power frequency city signal of telecommunication, resistance R 3 is charged with the integrating circuit that capacitor C 2 forms, when level exceeds voltage-stabiliser tube Z2 threshold value, voltage-stabiliser tube Z2 conducting, controls controllable silicon Q2 conducting, exports to constant-current switch power source, Switching Power Supply work, the main power transformer work of Switching Power Supply, the coupled voltages producing by the transformer secondary output of coupling continues to integrating circuit with high level, guarantees that power frequency city electric control unit continues conducting.Power supply access behind rectification unit, power frequency city electric control unit, constant-current switch power source unit, is the power supply of LED lamp group successively, and its equivalent electric circuit is as Fig. 3.
Claims (2)
1. a T5 fluorescent tube LED light source compatible type driver, it is characterized in that power supply access point two-way after power supply detecting unit, rectification unit, one tunnel is through high frequency control unit rear drive LED lamp group, and another road is successively through power frequency city electric control unit, constant-current switch power source unit rear drive LED lamp group; The transformer T1 that described power supply detecting unit is three windings, secondary the first winding is exported to high frequency from lock unit, high frequency suppresses power frequency city electric control unit operating state from lock unit output, and the feedback signal that this power frequency city electric control unit conducting state is exported by constant-current switch power source unit maintains; Secondary the second winding of described power supply detecting unit is exported to high frequency control unit, controls high frequency control unit conducting or disconnection.
2. a kind of T5 fluorescent tube LED light source compatible type driver according to claim 1, is characterized in that described rectification unit is the rectifier bridge of four high-frequency diode D1-D4 compositions; Described high frequency control unit is diode D5, resistance R 1, capacitor C 1 and voltage-stabiliser tube Z1 composition integrating circuit, controls conducting and the cut-off of controllable silicon Q1; Described high frequency is comprised of resistance R 2, diode D6 and voltage stabilizing benchmark triode Q3 from lock unit, when detecting unit is output as high level, during the conducting of high frequency control unit, R2 holds input high level, voltage stabilizing prover pipe Q3 conducting, suppressed the control end voltage of power frequency city electric control unit, made it to be less than the unlatching threshold value of Z2, locking power frequency city electric control unit is in off-state; Described power frequency city electric control unit, is comprised of controllable silicon Q2, voltage-stabiliser tube Z2, diode D7, resistance R 3, R4, R5 and capacitor C 2; Described switching power supply is by resistance R 6-R14, capacitor C 4-C6, the constant-current supply of the former limit of the auto-excitation type feedback of constant current control IC U1, metal-oxide-semiconductor Q4, diode D9 and transformer T2 composition, and output provides constant-current supply to after filtering LED lamp group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718085.8U CN203563242U (en) | 2013-11-13 | 2013-11-13 | LED light source compatible type drive for T5 tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718085.8U CN203563242U (en) | 2013-11-13 | 2013-11-13 | LED light source compatible type drive for T5 tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203563242U true CN203563242U (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320718085.8U Expired - Fee Related CN203563242U (en) | 2013-11-13 | 2013-11-13 | LED light source compatible type drive for T5 tube |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104540265A (en) * | 2014-11-21 | 2015-04-22 | 南京大学 | Low-cost omnidirectional fully-compatible driving device |
| WO2017067144A1 (en) * | 2015-10-20 | 2017-04-27 | 晨辉光宝科技有限公司 | Frequency adaptive led lamp drive circuit |
| CN106955422A (en) * | 2017-02-24 | 2017-07-18 | 安徽奥弗智能微创医疗器械有限公司 | Rhinitis phototherapy instrument |
-
2013
- 2013-11-13 CN CN201320718085.8U patent/CN203563242U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104540265A (en) * | 2014-11-21 | 2015-04-22 | 南京大学 | Low-cost omnidirectional fully-compatible driving device |
| CN104540265B (en) * | 2014-11-21 | 2017-02-22 | 南京大学 | Low-cost omnidirectional fully-compatible driving device |
| WO2017067144A1 (en) * | 2015-10-20 | 2017-04-27 | 晨辉光宝科技有限公司 | Frequency adaptive led lamp drive circuit |
| CN106955422A (en) * | 2017-02-24 | 2017-07-18 | 安徽奥弗智能微创医疗器械有限公司 | Rhinitis phototherapy instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140423 Termination date: 20171113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |