CN205430670U - Compatible type keeps apart NOT AND and keeps apart emitting diode power - Google Patents
Compatible type keeps apart NOT AND and keeps apart emitting diode power Download PDFInfo
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- CN205430670U CN205430670U CN201521060317.0U CN201521060317U CN205430670U CN 205430670 U CN205430670 U CN 205430670U CN 201521060317 U CN201521060317 U CN 201521060317U CN 205430670 U CN205430670 U CN 205430670U
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- diode
- bridge rectifier
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- transformator
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Abstract
The utility model provides a compatible type keeps apart NOT AND and keeps apart emitting diode power, it includes transformer T1, electric capacity X1, X2, the bridge type rectifier circuit no. 1 who comprises 4 diode D1, D2, D3, D4, the bridge type rectifier circuit no. 2 who comprises 4 diode D5, D6, D7, D8 to and switch MOS pipe Q1, transformer T2, according to the emitting diode isolating driver power that this electrical circuitry was made, have and directly connect each national line voltage, also can directly connect traditional fluorescence lamp inductive ballast and traditional fluorescence lamp electronic ballast's output, make traditional ballast, the biggest energy -conservation of performance and usable value, and not by the abandonment, the lamps and lanterns finished product mounting means of making follows traditional fluorescence lamp the same, it is fairly convenient to install, the utility model discloses an emitting diode drive power supply product quality reliability that the principle was made is high, and the safety in utilization is best, and the cost of manufacture is low, realizes outputization easily, can produce the power that various power sum voltage electric currents can be adjusted moreover as required, and product yield is high, has the superiority that other compatible type emitting diode drive power supply and ordinary emitting diode drive power supply can not compare.
Description
Technical field
This utility model relates to lighting and drives field of power supplies, and the light emitting diode isolation especially relating to the input of a kind of civil power and compatible conventional fluorescent fluorescent tube ballast drives power supply with non-isolated.
Background technology
At present, development stability and maturation due to LED source technology, common light emitting diode light source has exceeded common traditional fluorescent lamp in brightness and life-span and environmental protection, owing to LED source contrasts traditional fluorescent lamp energy saving effect clearly, its traditional fluorescent lamp of replacement is the inexorable trend of historical development, LED driving power then provides stable electric current for the core component of lumination of light emitting diode, in different line voltage networks, there is fabulous adaptability and stability, therefore the LED lamp using LED driving power replaces conventional light source to become upsurge.
The best way is exactly directly to use the LED source with LED driving power to replace conventional light source, but traditional fluorescent lighting fixture is all with ballast, and it is fixed on inside lamp bracket, the signal of its output high voltagehigh frequency rate drives it luminous, and common light emitting diode self-ballasted light source accesses high voltagehigh frequency rate signal and light fixture or conventional fluorescent ballast can be caused to burn, so cannot directly replace up, it is accomplished by transforming to access new LED source to original circuit if replaced, and improvement cost is at a relatively high, ballast equipment originally also cannot utilize and go out of use, therefore LED source replaces conventional light source to be extremely limited.
To this end, the technical staff of the industry carries out a series of improvement, such as electric capacity fall power method, doube bridge heap technique etc. to the drive circuit of LED source.
nullElectric capacity fall power method is to utilize the capacitive reactance acting of electric capacity but does not produce power and reach to drop the purpose of power，But electric capacity accesses in circuit has LC resonance to produce the most always，Power is the most increasing down to scaling loss circuit，Use doube bridge can shield the start-up capacitance of conventional fluorescent ballast thus eliminate the generation of igniting high pressure，But major part conventional fluorescent ballast needs start-up capacitance ability normal ignition，The masking of start-up capacitance causes the circuit can not normal ignition，The most also cannot use，And four lines access process of producing product is also become extremely complex，The compatible portioned product on the market of small part power supply ability is only had for this，With regard to this small part power supply but be all non-isolated，Its power supply wiring is through on light emitting diode，If shell protection is improper，Then easily cause the danger that personnel get an electric shock，The cost also having band frequency switching identification switch is the most of a relatively high.
Utility model content
Drawbacks described above for prior art, it is provided that a kind of compatible type isolation and non-isolated LED power source.
This utility model solves the technical scheme that its technical problem used and separates release and non-isolation type such as:
A kind of compatible type isolation and non-isolated LED power source, its insulating power supply is characterised by: it includes transformator T1, electric capacity X1, X2, the bridge rectifier one being made up of 4 diodes D1, D2, D3, D4, the bridge rectifier two being made up of 4 diodes D5, D6, D7, D8, and switch metal-oxide-semiconductor Q1, transformator T2；nullDescribed electric capacity X1 and electric capacity X2 connects and is followed by civil power or connects fluorescent lamp ballast outfan，Transformator T1 primary parallel is at electric capacity X1 two ends，Described 4 diode D1、D2、D3、Bridge rectifier one input of D4 composition is connected in parallel on described transformator T1 primary side，It is connected in parallel on described 4 diode D1 after described transformator T2 outfan and the series connection of external light-emitting diode group、D2、D3、Bridge rectifier one outfan of D4 composition，Described 4 diode D5、D6、D7、Bridge rectifier two input of D8 composition is connected in parallel on electric capacity X2 two ends，It is connected in parallel on described 4 diode D5 after described transformator T2 input and the series connection of described switch metal-oxide-semiconductor Q1 switch terminals、D6、D7、Bridge rectifier two outfan of D8 composition，Switch metal-oxide-semiconductor Q1 controls pole and connects PWM pulse-width controlled input signal.
A kind of compatible type isolation and non-isolated LED power source, its non-isolated power source features is: it includes transformator T1, electric capacity X1, X2, the bridge rectifier one being made up of 4 diodes D1, D2, D3, D4, the bridge rectifier two being made up of 4 diodes D5, D6, D7, D8, and switch metal-oxide-semiconductor Q1, inductance L1, Ultrafast recovery diode D9；nullDescribed electric capacity X1 and electric capacity X2 connects and is followed by civil power or connects fluorescent lamp ballast outfan，Transformator T1 primary parallel is at electric capacity X1 two ends，Described 4 diode D1、D2、D3、Bridge rectifier one input of D4 composition is connected in parallel on described transformator T1 primary side，Described inductance L1 is connected in parallel on described 4 diode D1 with external light-emitting diode group after connecting with Ultrafast recovery diode D9 after connecting、D2、D3、Bridge rectifier one outfan of D4 composition，Described 4 diode D5、D6、D7、Bridge rectifier two input of D8 composition is connected in parallel on electric capacity X2 two ends，Described switch metal-oxide-semiconductor Q1 switch terminals is connected in parallel on described 4 diode D5 after connecting with Ultrafast recovery diode D9、D6、D7、Bridge rectifier two outfan of D8 composition，Switch metal-oxide-semiconductor Q1 controls pole and connects PWM pulse-width controlled input signal.
Preferably, transformator T1 is common mode inductance or high frequency transformer, the most two or more windings, and the big I of the regulation transformator main winding number of turn and sensibility reciprocal changes the size of current of circuit.
Preferably, electric capacity X1 constitutes resonant tank with transformator, and for fast start circuit, electric capacity X2 is used for selecting civil power input or electric ballast input.
Preferably, the bridge rectifier one being made up of 4 Ultrafast recovery diodes D1, D2, D3, D4, it is operated in electric ballast pattern, the bridge rectifier two being made up of 4 diodes D5, D6, D7, D8, it is operated in civil power and Inductive ballast pattern, AC signal can be changed into DC signal output to load circuit.
Preferably, PWM pulse-width controlled input signal circuit IC, this PWM signal generator can match with any municipal power constant current control chip without any particular/special requirement, and is arbitrary power supply PWM chip signal generator on market.
The beneficial effects of the utility model are:
LED driving power reliability high security the most of the present utility model is fabulous, the input of global general-use line voltage can be connect, compatible all Inductive ballasts, can also compatible major part electric ballast and without transforming original circuit, original ballast can be continuing with, and decreases unnecessary waste.
2. this utility model solves civil power input and connects two power lines, Europe rule electronics, Inductive ballast output connect four power lines and North America electric ballast exports the reunification connecing two power lines, use two power line tie-in lines without exception, producing only two power lines of weldering, production technology and material cost all will greatly reduce.
3. this utility model is under the work premise only using electric ballast to export, and power supply cost is extremely low so that the holistic cost of LED lamp can compare favourably with conventional fluorescent, and cost performance is at a relatively high.
4. this utility model is to municipal power constant current control chip without any special requirement, can match with any municipal power constant current control chip, and this is that other major part company compatibility power supplys are unreachable.
5. product element all uses market general-purpose device, need not be readily available for stock, easily produce, and therefore cost can control to minimum, brings the highest income to company.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is this utility model light emitting diode isolation drive power principle figure；
Fig. 2 is that this utility model light emitting diode non-isolated common anode drives power supply ultimate principle figure；
Fig. 3 is that this utility model light emitting diode non-isolated common cathode drives power supply ultimate principle figure；
Fig. 4 is this utility model electric ballast light emitting diode isolation drive power principle figure.
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is further described.
A kind of compatible type isolation and non-isolated LED power source as shown in Figure 1, its insulating power supply is characterised by: it includes transformator T1, electric capacity X1, X2, the bridge rectifier one being made up of 4 diodes D1, D2, D3, D4, the bridge rectifier two being made up of 4 diodes D5, D6, D7, D8, and switch metal-oxide-semiconductor Q1, transformator T2；nullDescribed electric capacity X1 and electric capacity X2 connects and is followed by civil power or connects fluorescent lamp ballast outfan，Transformator T1 primary parallel is at electric capacity X1 two ends，Described 4 diode D1、D2、D3、Bridge rectifier one input of D4 composition is connected in parallel on described transformator T1 primary side，It is connected in parallel on described 4 diode D1 after described transformator T2 outfan and the series connection of external light-emitting diode group、D2、D3、Bridge rectifier one outfan of D4 composition，Described 4 diode D5、D6、D7、Bridge rectifier two input of D8 composition is connected in parallel on electric capacity X2 two ends，It is connected in parallel on described 4 diode D5 after described transformator T2 input and the series connection of described switch metal-oxide-semiconductor Q1 switch terminals、D6、D7、Bridge rectifier two outfan of D8 composition，Switch metal-oxide-semiconductor Q1 controls pole and connects PWM pulse-width controlled input signal.
A kind of compatible type isolation and non-isolated LED power source as shown in Figure 2, its non-isolated power source features is: it includes transformator T1, electric capacity X1, X2, the bridge rectifier one being made up of 4 diodes D1, D2, D3, D4, the bridge rectifier two being made up of 4 diodes D5, D6, D7, D8, and switch metal-oxide-semiconductor Q1, inductance L1, Ultrafast recovery diode D9；nullDescribed electric capacity X1 and electric capacity X2 connects and is followed by civil power or connects fluorescent lamp ballast outfan，Transformator T1 primary parallel is at electric capacity X1 two ends，Described 4 diode D1、D2、D3、Bridge rectifier one input of D4 composition is connected in parallel on described transformator T1 primary side，Described inductance L1 is connected in parallel on described 4 diode D1 with external light-emitting diode group after connecting with Ultrafast recovery diode D9 after connecting、D2、D3、Bridge rectifier one outfan of D4 composition，Described 4 diode D5、D6、D7、Bridge rectifier two input of D8 composition is connected in parallel on electric capacity X2 two ends，Described switch metal-oxide-semiconductor Q1 switch terminals is connected in parallel on described 4 diode D5 after connecting with Ultrafast recovery diode D9、D6、D7、Bridge rectifier two outfan of D8 composition，Switch metal-oxide-semiconductor Q1 controls pole and connects PWM pulse-width controlled input signal.
In circuit, transformator T1 is common mode inductance or high frequency transformer, the most two or more windings, and the big I of the regulation transformator main winding number of turn and sensibility reciprocal changes the size of current of circuit.
In circuit, electric capacity X1 constitutes resonant tank with transformator, and for fast start circuit, electric capacity X2 is used for selecting civil power input or electric ballast input.
In circuit, the bridge rectifier one being made up of 4 Ultrafast recovery diodes D1, D2, D3, D4, it is operated in electric ballast pattern, the bridge rectifier two being made up of 4 diodes D5, D6, D7, D8, it is operated in civil power and Inductive ballast pattern, AC signal can be changed into DC signal output to load circuit.
In circuit, PWM pulse-width controlled input signal circuit IC, this PWM signal generator can match with any municipal power constant current control chip without any particular/special requirement, and is arbitrary power supply PWM chip signal generator on market.
Fig. 1 and Fig. 2 circuit, actual combination by electric ballast operating circuit and mains circuit, inductive ballast circuit selects electric capacity C2 conversion to be combined into, and selective under different initial conditions uses corresponding electronic circuit and other circuit do not work.
It is the most contrary that Fig. 3 is that the common cathode connection circuit of Fig. 2 switchs the circuit connection position that metal-oxide-semiconductor connected unlike Fig. 2.
Fig. 4 is then the operating circuit when only connecing electronic ballast output end: electric capacity X1 and electric capacity X2 connects and is followed by civil power or connects fluorescent lamp ballast outfan, transformator T1 primary parallel is at electric capacity X1 two ends, bridge rectifier one input of 4 diode D1, D2, D3, D4 compositions is connected in parallel on described transformator T1 primary side, the bridge rectifier one external light-emitting diode group of outfan of 4 diode D1, D2, D3, D4 compositions i.e. can work independently, wherein electric capacity X2 is optional, mainly bypassing according to being actually needed selection, coupling is used.More additional protection circuits make whole circuit more safe and reliable, can separately be used alone according to reality application needs, thus effectively reduce material, production cost etc..
During actual application, can be actually needed according to client, select the circuit diagram being suitable for, according to circuit diagram, make component list, then material is purchased according to component list, material produces after getting all the ready, and the LED driving power of such a applicable user's needs function is just produced, and is then charged in light fixture, no matter connect civil power input or connecing conventional fluorescent ballast outfan can directly replace employ up, the most convenient and practical.
As it has been described above, only this utility model circuit detailed description of the invention, it is impossible to being embodied as scope as limiting this utility model, all changes made according to this utility model claim and description and amendment, all in protection domain of the present utility model.
Claims (2)
1. a compatible type isolation and non-isolated LED power source, its insulating power supply is characterised by: it includes transformator T1, electric capacity X1, X2, the bridge rectifier one being made up of 4 diodes D1, D2, D3, D4, the bridge rectifier two being made up of 4 diodes D5, D6, D7, D8, and switch metal-oxide-semiconductor Q1, transformator T2；nullDescribed electric capacity X1 and electric capacity X2 connects and is followed by civil power or connects fluorescent lamp ballast outfan，Transformator T1 primary parallel is at electric capacity X1 two ends，Described 4 diode D1、D2、D3、Bridge rectifier one input of D4 composition is connected in parallel on described transformator T1 primary side，It is connected in parallel on described 4 diode D1 after described transformator T2 outfan and the series connection of external light-emitting diode group、D2、D3、Bridge rectifier one outfan of D4 composition，Described 4 diode D5、D6、D7、Bridge rectifier two input of D8 composition is connected in parallel on electric capacity X2 two ends，It is connected in parallel on described 4 diode D5 after described transformator T2 input and the series connection of described switch metal-oxide-semiconductor Q1 switch terminals、D6、D7、Bridge rectifier two outfan of D8 composition，Switch metal-oxide-semiconductor Q1 controls pole and connects PWM pulse-width controlled input signal.
2. a compatible type isolation and non-isolated LED power source, its non-isolated power source features is: it includes transformator T1, electric capacity X1, X2, the bridge rectifier one being made up of 4 diodes D1, D2, D3, D4, the bridge rectifier two being made up of 4 diodes D5, D6, D7, D8, and switch metal-oxide-semiconductor Q1, inductance L1, Ultrafast recovery diode D9；nullDescribed electric capacity X1 and electric capacity X2 connects and is followed by civil power or connects fluorescent lamp ballast outfan，Transformator T1 primary parallel is at electric capacity X1 two ends，Described 4 diode D1、D2、D3、Bridge rectifier one input of D4 composition is connected in parallel on described transformator T1 primary side，Described inductance L1 is connected in parallel on described 4 diode D1 with external light-emitting diode group after connecting with Ultrafast recovery diode D9 after connecting、D2、D3、Bridge rectifier one outfan of D4 composition，Described 4 diode D5、D6、D7、Bridge rectifier two input of D8 composition is connected in parallel on electric capacity X2 two ends，Described switch metal-oxide-semiconductor Q1 switch terminals is connected in parallel on described 4 diode D5 after connecting with Ultrafast recovery diode D9、D6、D7、Bridge rectifier two outfan of D8 composition，Switch metal-oxide-semiconductor Q1 controls pole and connects PWM pulse-width controlled input signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521060317.0U CN205430670U (en) | 2015-12-20 | 2015-12-20 | Compatible type keeps apart NOT AND and keeps apart emitting diode power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521060317.0U CN205430670U (en) | 2015-12-20 | 2015-12-20 | Compatible type keeps apart NOT AND and keeps apart emitting diode power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205430670U true CN205430670U (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521060317.0U Expired - Fee Related CN205430670U (en) | 2015-12-20 | 2015-12-20 | Compatible type keeps apart NOT AND and keeps apart emitting diode power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205430670U (en) |
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2015
- 2015-12-20 CN CN201521060317.0U patent/CN205430670U/en not_active Expired - Fee Related
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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: 20160803 Termination date: 20171220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |