CN202524601U - LED lamp double-end power supply unidirectional protection circuit - Google Patents
LED lamp double-end power supply unidirectional protection circuit Download PDFInfo
- Publication number
- CN202524601U CN202524601U CN2012200272869U CN201220027286U CN202524601U CN 202524601 U CN202524601 U CN 202524601U CN 2012200272869 U CN2012200272869 U CN 2012200272869U CN 201220027286 U CN201220027286 U CN 201220027286U CN 202524601 U CN202524601 U CN 202524601U
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- power supply
- led lamp
- fluorescent tube
- protection circuit
- circuits
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- Expired - Fee Related
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Abstract
The utility model discloses an LED lamp double-end power supply unidirectional protection circuit. The LED lamp double-end power supply unidirectional protection circuit comprises an LED lamp and power supply circuits, and is characterized in that circuits of the LED lamp double ends are connected with two power supply circuits, wherein the power supply circuits are bridge rectifier circuits and shunt resistors are connected on the bridge rectifier circuits. According to the LED lamp double-end power supply unidirectional protection circuit disclosed by the utility model, as the circuits of the LED lamp double ends are connected with two power supply circuits and the power supply circuits are bridge rectifier circuits, double-end power supply of the LED tube can be realized. Therefore, even if a component on one end circuit is damaged or burned down, the entire LED lamp can still work normally; and in the case that when one end is short-circuited, the other end can play the role of protecting the circuit to prevent the LED lamp from damage.
Description
Technical field
The utility model relates to technical field of lighting fixtures, is a kind of LED fluorescent tube both end power supplying unidirectional protection circuit specifically.
Background technology
People adopt incandescent lamp or electricity-saving lamp (neon tube lamp) to throw light on usually; These ligthing paraphernalia energy consumptions are higher; People utilized light-emitting diode (LED) to throw light on afterwards; Because LED utilizes the luminescent properties after semiconductor is switched on luminous, has advantage low in energy consumption, thereby becomes the emerging light source that substitutes the traditional lighting light source.But existing LED fluorescent tube generally is to adopt single-ended power supply, and this mode is supplied power, in case circuit has element to break down or quilt is burnt, the whole LED fluorescent tube just can't use, and when being short-circuited, also very easily damages the LED fluorescent tube.
Summary of the invention
The purpose of the utility model provides a kind of LED fluorescent tube both end power supplying unidirectional protection circuit, can effectively protect the LED fluorescent tube, and the LED lamp tube power supply is continued, and makes the LED fluorescent tube normally luminous.
The purpose of the utility model realizes through following technical scheme.
A kind of LED fluorescent tube both end power supplying unidirectional protection circuit comprises LED fluorescent tube and power circuit, and it is characterized in that: two terminal circuits of said LED fluorescent tube are connected with the two-way power circuit, and said power circuit is a bridge rectifier.
Circuit is connected with shunt resistance on the said bridge rectifier.
Said LED fluorescent tube comprises at least two group LED coupled in series lamp pearls.
The utility model compared with prior art has the following advantages:
The utility model is owing to two terminal circuits at the LED fluorescent tube are connected with the two-way power circuit; Said power circuit is a bridge rectifier, promptly is the both end power supplying of having realized the LED fluorescent tube, even if a terminal circuit has element to break down or burnt like this; The whole LED fluorescent tube also can normally use; And when an end was short-circuited, the other end can play the circuit protection effect, prevented to damage the LED fluorescent tube.
Description of drawings
Fig. 1 is the utility model LED fluorescent tube both end power supplying unidirectional protection circuit theory diagrams.
Embodiment
Below in conjunction with accompanying drawing the utility model LED fluorescent tube both end power supplying unidirectional protection circuit is described in further detail.
Like Fig. 1, the utility model LED fluorescent tube both end power supplying unidirectional protection circuit comprises LED fluorescent tube 1 and power circuit, is connected with the two-way power circuit at two terminal circuits of LED fluorescent tube 1, has promptly realized the both end power supplying of LED fluorescent tube, and power circuit is a bridge rectifier 2.Circuit is connected with shunt resistance 3 on bridge rectifier 2.Wherein LED fluorescent tube 1 comprises at least two group LED coupled in series lamp pearls.
Claims (3)
1. a LED fluorescent tube both end power supplying unidirectional protection circuit comprises LED fluorescent tube and power circuit, and it is characterized in that: two terminal circuits of said LED fluorescent tube are connected with the two-way power circuit, and said power circuit is a bridge rectifier.
2. LED fluorescent tube both end power supplying unidirectional protection circuit according to claim 1, it is characterized in that: circuit is connected with shunt resistance on the said bridge rectifier.
3. LED fluorescent tube both end power supplying unidirectional protection circuit according to claim 1 and 2 is characterized in that: said LED fluorescent tube comprises at least two group LED coupled in series lamp pearls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200272869U CN202524601U (en) | 2012-01-20 | 2012-01-20 | LED lamp double-end power supply unidirectional protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200272869U CN202524601U (en) | 2012-01-20 | 2012-01-20 | LED lamp double-end power supply unidirectional protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202524601U true CN202524601U (en) | 2012-11-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200272869U Expired - Fee Related CN202524601U (en) | 2012-01-20 | 2012-01-20 | LED lamp double-end power supply unidirectional protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202524601U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235779A (en) * | 2014-09-15 | 2014-12-24 | 中山市乔森电气有限公司 | Single-double end electrified LED (Light-Emitting Diode) lamp tube |
| US9686828B2 (en) | 2014-06-15 | 2017-06-20 | Lunera Lighting, Inc. | LED retrofit lamp with a strike barrier |
| US9826582B2 (en) | 2014-06-15 | 2017-11-21 | Lunera Lighting, Inc. | LED retrofit lamp with a strike barrier |
-
2012
- 2012-01-20 CN CN2012200272869U patent/CN202524601U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9686828B2 (en) | 2014-06-15 | 2017-06-20 | Lunera Lighting, Inc. | LED retrofit lamp with a strike barrier |
| US9826582B2 (en) | 2014-06-15 | 2017-11-21 | Lunera Lighting, Inc. | LED retrofit lamp with a strike barrier |
| US10349473B2 (en) | 2014-06-15 | 2019-07-09 | Signify Holding B.V. | LED retrofit lamp with a strike barrier |
| CN104235779A (en) * | 2014-09-15 | 2014-12-24 | 中山市乔森电气有限公司 | Single-double end electrified LED (Light-Emitting Diode) lamp tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20140120 |