CN108449823A - For the driving circuit of improved LED lamp tube, LED lamp tube and lighting system - Google Patents
For the driving circuit of improved LED lamp tube, LED lamp tube and lighting system Download PDFInfo
- Publication number
- CN108449823A CN108449823A CN201710083189.9A CN201710083189A CN108449823A CN 108449823 A CN108449823 A CN 108449823A CN 201710083189 A CN201710083189 A CN 201710083189A CN 108449823 A CN108449823 A CN 108449823A
- Authority
- CN
- China
- Prior art keywords
- driving circuit
- led lamp
- lamp tube
- fuse element
- electrical fuse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
Abstract
The present invention provides a kind of driving circuit, LED lamp tube and lighting systems.The driving circuit includes：First external connection pins (1) and the second external connection pins (2) are used to driving circuit (10) being connected to luminaire；First inside connection pin (3) and the second inside connection pin (4), are used to driving circuit (10) being connected to a part for improved LED lamp tube (100)；First electrical fuse element (21) and the second electrical fuse element (22) are connected in series between the first external connection pins (1) and the first inside connection pin (3)；And surge suppressor module (30), one end is connected between the first electrical fuse element (21) and the second electrical fuse element (22), and the other end is connected between the second external connection pins (2) and the second inside connection pin (4).
Description
Technical field
The present invention relates to one kind for improved LED lamp tube (especially for the improvement compatible with the luminaire with CCG
LED lamp tube) driving circuit, LED lamp tube (especially LED lamp tube) compatible with the luminaire with CCG and lighting system.
Background technology
For a long time, fluorescent tube is considered as high effect, illumination.Many buildings and street are equipped with suitable for receiving
The luminaire of such as mercury vapor lamp (also referred to as HQL lamps) of fluorescent tube.
However, fluorescent tube is negative differential resistance.In other words, the electric current for flowing through them is more, the electricity of fluorescent lamp
Resistance declines more.If fluorescent lamp is directly connected to such as electric power line (also referred to as power line, household power, wall electricity
Power, line power, power transmission network etc.) constant voltage power supply, then fluorescent lamp is since uncontrolled electric current can quick self-destruction.In order to anti-
Only such case, fluorescent lamp generally use auxiliary device (so-called ballast) flow through the electric current of lamp to adjust.In general, using normal
Advise ballast (also referred to as magnetic ballast or conventional control units CCG) or electronic control unit (ECG).
Since improved LED lamp tube has the function of better high energy efficiency, the demand to improved LED lamp tube constantly increases.
Improved LED lamp tube is the lighting device using the efficient LED light engine for including light emitting diode (LED) as light source.It can
By by with use fluorescent tube identical in a manner of come in existing luminaire to use improved LED lamp tube.
In 6936968 B2 of US, a kind of improved light-emitting diode lamp tube is described, wherein described improved luminous
Diode lamp tube has elongated cylindrical transparent capsule, is in the base seat lid of capsule often held and is electrically connected with the base seat lid
At least one LED matrix.
Mercury-vapour lamp is commonly installed outdoors, such as street lighting, therefore mercury-vapour lamp may be subjected to big voltage wave
It gushes.Therefore, even if in the case of this voltage surge, mercury-vapour lamp should also be as to work and continuing to function.For this purpose, mercury
Gas lamp generally includes the inside fuse with big rated current.
If improved LED lamp tube is mounted on inside the luminaire with CCG, it is likely to occur following situations：LED lamp tube
Such as short-circuit failure may occur in the circuit after the fuse of LED lamp tube.Due to as limiting short-circuit current
The impedance of CCG, the fuse with big rated current may not be tripped due to short circuit current.It that case, CCG can
It may be with the high current of adverse consequences to continue transmission.
Invention content
It is an object of the present invention to provide a kind of for the improved of the improved LED lamp tube compatible with CCG luminaires
Driver.
According to an aspect of the invention, there is provided a kind of driving circuit for improved LED lamp tube comprising be used for
Driving circuit is connected to the first external connection pins and the second external connection of luminaire (the especially luminaire with CCG)
Pin.Driving circuit further includes that the first inside connection of the part for driving circuit to be connected to improved LED lamp tube is drawn
Foot and the second inside connect pin.
First electrical fuse element and the second electrical fuse element, which are connected in series in inside the first external connection pins and first, to be connected
It connects between pin.Particularly, electrical fuse element, which can act as, sacrifices device to provide any type of low electricity of overcurrent protection
Hinder resistor.
Driving circuit further includes surge suppressor module, and one end of surge suppressor module is connected to the first external connection and draws
Foot and the first inside connect pin, and the other end is connected to the second external connection pins and the second inside connects pin.It is preferred that
The one end on ground, driving circuit is connected between the first electrical fuse element and the second electrical fuse element, and the other end is connected to
Between two external connection pins and the second inside connection pin.In other words, the first electrical fuse element and surge suppressor module can
To be connected in series between the first external connection pins and the second external connection pins.
Surge suppressor module advantageously have be used as voltage less than predetermined threshold insulator and as voltage be in and
Higher than the electrical characteristics of the voltage suppressor of predetermined threshold.Surge suppressor module may include at least one Transient Voltage Suppressor
(TVS), it is preferable that the TVS being especially connected in series with including at least two.
Preferably, surge suppressor module includes at least two individual components in addition to the leads.Desirably, surge
Suppressor module is configured as by and bears 4kV surges.
Second electrical fuse element is used as fault mode protector.Advantageously, the second electrical fuse element (and is connected in second
Connection pin in portion's simultaneously connects pin via the first inside and is connected to the circuit of the second electrical fuse element) the not work during voltage surge
Make so that the second electrical fuse element does not trip during surge.
In the above and below, in the case where context is without clearly in addition statement, word " connection " refers to being electrically connected
It connects, that is, be configured for the connection of the transmission telecommunications number between the element connected.In context without clearly other sound
In the case of bright, word " connection ", which can refer to, directly and/or indirectly to be coupled.
According to another aspect of the present invention, the LED lamp tube for including driving circuit according to the present invention is provided.In addition to driving
Other than dynamic circuit, LED lamp tube may include the LED light engine for having light emitting diode (LED).Driving circuit side can connect
Between the first external connection pins and the second external connection pins, and the other side can be connected to electromagnetic interference circuit, bridge
Between formula circuit, switch mode power supply circuit and/or LED light engine.
According to another aspect of the present invention, it includes LED lamp tube according to the present invention and conventional control units to provide a kind of
(CCG) lighting system, wherein CCG, which is connected to outside the first external connection pins or second of the driving circuit of LED lamp tube, to be connected
Connect pin.
In some embodiments of driving circuit according to the present invention, surge suppressor module may include varistor
Device, especially metal-oxide varistor (movistor).Piezoresistor is used as the insulator of low-voltage so that surge
Suppressor module is insulator under low-voltage state.
In some embodiments, surge suppressor module includes gas-discharge tube (it is also referred to as gas discharge pipe).Gas
Body discharge tube usually makes voltage transient dissipate by the plasma gas for being included.Gas-discharge tube usually has high insulated electro
Resistance and lower capacitance and leakage, to ensure the minimum influence of the normal operating to equipment.Particularly preferably and varistor
The gas-discharge tube that device is connected in series with.Then, gas-discharge tube can be used for inhibiting the high voltage and current by piezoresistor.
In some embodiments, the first electrical fuse element is configured as：It has (is preferably greater than more than 3 amperes (3A)
3.5 amperes (3.5A), are most preferably more than 4 amperes) rated current.
In some embodiments, the first electrical fuse element has the specified electricity bigger than the rated current of the second electrical fuse element
Stream.It can be according to intending using driving circuit or the characteristics of the CCG luminaires of the LED lamp tube including driving circuit selects second
The characteristic (especially rated current) of electrical fuse element.
Preferably, the second electrical fuse element is configured as：It such as in neighbouring drive circuit or is directly connected in generation
The failure of short circuit occurs for (that is, being connected inside first inside pin and second at connection pin) in the circuit of drive circuit
In the case of, the tripping of the second electrical fuse element.
Description of the drawings
Figures 1 and 2 show that the schematic diagram of driving circuit according to an embodiment of the invention.
Fig. 3 shows lighting system and LED lamp tube according to another embodiment of the invention.
Specific implementation mode
In the accompanying drawings, identical, similar or with same or similar effect element reference numeral having the same.In attached drawing
The figure of the element shown and size relationship each other are not considered as drawn to scale.On the contrary, can be to overstate
Size individual component is shown, enable to preferably to illustrate and/or more fully understand.
Referring to Fig.1, the first embodiment of driving circuit 10 is described based on schematic diagram.
Driving circuit 10 includes for driving circuit 10 to be connected to outside the first external connection pins 1 and second of luminaire
Portion connects pin 2.For example, as shown in Figure 1, the first external connection pins 1 can be connected to or may be connected to such as circuit leads
The first power cable circuit of line L (also referred to as phase line, firewire, active wires or electrified wire).First external connection pins can
To be connected to the CCG of luminaire by line conductor L.
Second external connection pins 2 can be connected to or may be connected to second source electrical wiring (for example, the neutral conductor
N)。
Driving circuit 10 further includes one for being connected to or being configured as driving circuit 10 being connected to improved LED lamp tube
The the first inside connection pin 3 divided and the second inside connect pin 4.
Between connection pin 3 inside the first external connection pins 1 and first, the insurance of the first electrical fuse element 21 and second
Silk element 22 is connected in series with.Preferably, the rated current of the first electrical fuse element 21 is more than the specified of the second electrical fuse element 22
Electric current.
In some embodiments, the rated current of the first electrical fuse element 21 can be 3A or higher, 3.5A or higher, 4A
Or higher.
The rated current of second electrical fuse element 22 is selected as：In driving circuit 10 or driving circuit 10 is installed simultaneously
And when normal mode of operation (that is, it is anticipated that work) of the LED lamp tube mounted on the luminaire with CCG, the second fuse
Element 22 does not trip.It is further favourable that based on being connected via the first external connection pins and the second external connection pins
To or the electrical characteristics of CCG of driving circuit to be connected to 10 select the rated current of the second electrical fuse element 22.
More specifically, the rated current of the second electrical fuse element 22 can be selected as：When the second electrical fuse element 22 passes through
It is connected with CCG by the first external connection pins 1 and the second external connection pins 2, and is connected to the first inside and connects pin 3
When short circuit occurs due to failure with the circuit of the second inside connection pin 4, the tripping of the second electrical fuse element 22 or disconnection.
First electrical nodes 5 are defined as being connected to being connected in series with for the first electrical fuse element 21 and the second electrical fuse element 22
Between, it is preferable that it is connected directly between the first electrical fuse element 21 and the second electrical fuse element 22.Second electrical nodes 6 are determined
Justice is to be connected between the second external connection pins 2 and the second inside connection pin 4.
Between the first electrical nodes 5 and the second electrical nodes 6, it is electrically connected with surge suppressor module 30.Surge suppressor mould
Block 30 is configured as tolerating high voltage (for example, 3kV or higher, 3.5kV or higher, 4kV or higher or 4.5kV or higher)
Voltage surge.
Meanwhile surge suppressor module 30 is configured as：Surge suppressor module 30 is not influenced or is hindered in any way
Normal mode of operation is spy with the short circuit being connected in the circuit of the first inside connection pin 3 and the second inside connection pin 4
The fault mode of sign.For low-voltage (for example, voltage less than 3kV, 3.5kV or 4kV), surge suppressor module 30 can be used
Make insulator.
About Fig. 2, illustrate in greater detail as one of driving circuit 10 possible and Advantageous variants possible configuration.
In the modification, surge suppressor module 30 includes the metal-oxide varistor 32 and gas-discharge tube being connected in series with
34。
With reference to Fig. 3, lighting system 1000 according to the present invention and LED according to another embodiment of the invention are described
Fluorescent tube 100.
LED lamp tube 100 includes driving circuit 10 according to the present invention, be may be configured to such as about any of the above described modification
It is described such.
LED lamp tube 100 further includes the optional electromagnetic interference for the electromagnetic interference being arranged to reduce in LED lamp tube 100
(EMI) circuit 40.EMI circuits 40 connect pin 3 with the first inside and the second inside connection pin 4 is connected.It is connected to EMI electricity
Road 40 is optional bridgt circuit and/or switch mode power supply circuit 42 that LED light engine 44 is connected to.
LED light engine 44 includes one or more light emitting diodes (LED), and LED light engine 44 is configured as：When to
First external connection pins 1 and the second external connection pins 2 apply voltage, and typically LED lamp tube 100 (especially drives
Circuit 10) when being in normal mode of operation, provided for luminous electric current to LED.It should be appreciated that LED light engine 44 can be through
The many other combinations and configuration of oversampling circuit and be connected to driving circuit 10, and LED light engine 44 is not limited in any way
In exemplary configuration shown in Fig. 3.
Lighting system 1000 according to the present invention includes LED lamp tube 100, and further includes the drive for being connected to LED lamp tube 100
The CCG 1001 of first external connection pins 1 of dynamic circuit 10.Particularly, lighting system 1000 may include wherein being equipped with
The CCG luminaires of LED lamp tube 100.
The rated current of the second electrical fuse element 22 is selected according to the electrical characteristics (for example, impedance) of CCG 1001,
So that under the normal mode of operation of LED lamp tube 100, the second fuse 22 does not trip.
Preferably, the rated current of the second electrical fuse element 22 is selected as：When EMI circuits 40 or bridge circuit and/or
When switch mode power supply circuit 42 and/or LED light engine 44 occur due to failure or short circuit occur respectively, the second electrical fuse element
22 trippings disconnect.
The present invention is not limited to the descriptions based on embodiment.On the contrary, the present invention includes the arbitrary of arbitrary new feature and feature
Combination especially includes the arbitrary combination of the feature in patent claims book, even if this feature or the combination itself do not have
The clear stipulaties in patent claims book or illustrative embodiments.
Reference numeral
1：First external connection pins
2：Second external connection pins
3：First inside connects pin
4：Second inside connects pin
5：First electrical nodes
6：Second electrical nodes
10：Driving circuit
21：First electrical fuse element
22：Second electrical fuse element
30：Surge suppressor module
32：Piezoresistor
34：Gas-discharge tube
40：EMI circuits
42：Bridge circuit
44：LED light engine
100：LED lamp tube
1000：Lighting system
1001：Conventional control units (CCG)
Claims (9)
1. one kind being used for the driving circuit (10) of improved LED lamp tube (100), including：
First external connection pins (1) and the second external connection pins (2) are used to driving circuit (10) being connected to illumination
Device；
First inside connection pin (3) and the second inside connection pin (4), are used to driving circuit (10) being connected to improved
A part for LED lamp tube (100)；
First electrical fuse element (21) and the second electrical fuse element (22), be connected in series in the first external connection pins (1) and
Between first inside connection pin (3)；And
Surge suppressor module (30), one end be connected to the first electrical fuse element (21) and the second electrical fuse element (22) it
Between, the other end is connected between the second external connection pins (2) and the second inside connection pin (4).
2. driving circuit (10) according to claim 1, wherein the surge suppressor module (30) includes varistor
Device (32).
3. driving circuit (10) according to claim 2, wherein the surge suppressor module (30) includes metal oxidation
Object piezoresistor (32).
4. driving circuit (10) according to claim 1 or 2, wherein the surge suppressor module (30) includes gas
Discharge tube (34).
5. driving circuit (10) according to claim 1 or 2, wherein first electrical fuse element (21), which has, to be more than
The rated current of 3A.
6. driving circuit (10) according to claim 1 or 2, wherein the specified electricity of first electrical fuse element (21)
Rated current of the stream more than second electrical fuse element (22).
7. a kind of LED lamp tube (100) comprising driving circuit (10) according to claim 1 or 2.
8. LED lamp tube (100) according to claim 7, including LED light engine (44), wherein the driving circuit (10)
It is connected between the first external connection pins (1) and the second external connection pins (2) in side, and is connected to magnetic disturbance circuit
40, bridge circuit (42) or switch mode power supply circuit (42), and/or LED light engine (44).
9. a kind of lighting system (1000), including LED lamp tube according to claim 7 (100) and conventional control units
(1001), wherein conventional control units (1001) are connected to outside the first of the driving circuit (10) of the LED lamp tube (100)
Connect pin (1) or the second external connection pins (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083189.9A CN108449823A (en) | 2017-02-16 | 2017-02-16 | For the driving circuit of improved LED lamp tube, LED lamp tube and lighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083189.9A CN108449823A (en) | 2017-02-16 | 2017-02-16 | For the driving circuit of improved LED lamp tube, LED lamp tube and lighting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108449823A true CN108449823A (en) | 2018-08-24 |
Family
ID=63190551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710083189.9A Pending CN108449823A (en) | 2017-02-16 | 2017-02-16 | For the driving circuit of improved LED lamp tube, LED lamp tube and lighting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108449823A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201533161U (en) * | 2009-10-30 | 2010-07-21 | 深圳创维数字技术股份有限公司 | Electrical equipment lightning-protection device |
| CN203851312U (en) * | 2013-12-12 | 2014-09-24 | 苏州市昇源电子科技有限公司 | LED lamp tube |
| CN204168529U (en) * | 2014-10-29 | 2015-02-18 | 英飞特电子（杭州）股份有限公司 | A kind of lightning protection circuit for LED |
| CN104578019A (en) * | 2013-10-18 | 2015-04-29 | 华为技术有限公司 | Circuit for power module, device and working method of circuit |
| CN204905855U (en) * | 2015-08-27 | 2015-12-23 | 中蓝光电科技（上海）股份有限公司 | Surge protector and have this surge protector's LED lighting device |
-
2017
- 2017-02-16 CN CN201710083189.9A patent/CN108449823A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201533161U (en) * | 2009-10-30 | 2010-07-21 | 深圳创维数字技术股份有限公司 | Electrical equipment lightning-protection device |
| CN104578019A (en) * | 2013-10-18 | 2015-04-29 | 华为技术有限公司 | Circuit for power module, device and working method of circuit |
| CN203851312U (en) * | 2013-12-12 | 2014-09-24 | 苏州市昇源电子科技有限公司 | LED lamp tube |
| CN204168529U (en) * | 2014-10-29 | 2015-02-18 | 英飞特电子（杭州）股份有限公司 | A kind of lightning protection circuit for LED |
| CN204905855U (en) * | 2015-08-27 | 2015-12-23 | 中蓝光电科技（上海）股份有限公司 | Surge protector and have this surge protector's LED lighting device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180824 |