CN203407035U - Led lamp circuit - Google Patents

Led lamp circuit Download PDF

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Publication number
CN203407035U
CN203407035U CN201320300993.5U CN201320300993U CN203407035U CN 203407035 U CN203407035 U CN 203407035U CN 201320300993 U CN201320300993 U CN 201320300993U CN 203407035 U CN203407035 U CN 203407035U
Authority
CN
China
Prior art keywords
circuit
led lamp
current
relay
led
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.)
Expired - Fee Related
Application number
CN201320300993.5U
Other languages
Chinese (zh)
Inventor
李培信
李金升
张涛
姚亮
赵德强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANDONG YICHANG LIGHTING TECHNOLOGY Co Ltd
Original Assignee
SHANDONG YICHANG LIGHTING TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANDONG YICHANG LIGHTING TECHNOLOGY Co Ltd filed Critical SHANDONG YICHANG LIGHTING TECHNOLOGY Co Ltd
Priority to CN201320300993.5U priority Critical patent/CN203407035U/en
Application granted granted Critical
Publication of CN203407035U publication Critical patent/CN203407035U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The utility model discloses an LED lamp circuit, and relates to the technical field of LED illumination. The circuit mainly consists of current-limiting resistors, a capacitor, a reversed-connection prevention circuit, and a plurality of LED lamp beads. The reversed-connection prevention circuit comprises a comparator, a triode, and a relay. The triode is disposed between the comparator and the relay. The comparator is connected with the capacitor. The relay is disposed at the input end of an external power supply. A plurality of current-limiting resistors are disposed between the relay and the plurality of LED lamp beads. The LED lamp circuit provided by the utility model is simple in structure and low in cost. Through that the plurality of current-limiting resistors are disposed in a conventional LED lamp circuit, a working current is limited by the resistors and the current is controllable, thereby effectively prolonging the service life of a product. Meanwhile, the circuit, which is provided with the reversed-connection prevention circuit, can prevent the man-made damage to elements and a light source because of polarity reversed connection during the processes of installation and maintenance.

Description

LED circuit for lamp
Technical field
The utility model relates to LED lighting technical field, is specifically related to a kind of LED circuit for lamp.
Background technology
Along with expanding economy and social progress, energy conservation has become the certainty of social consensus and development, and LED light fixture is a kind of green product of energy-conserving and environment-protective, and in illuminating industry, development is more and swifter and more violent at present.Because LED is the semiconductor device of characteristic sensitivity, the characteristic again with negative temperature, therefore in application process, need to keep the stable of its operating state, LED can directly be connected with electric main unlike common incandescent lamp bulb, LED is the low voltage drive of 2-3V, must design its normal operation of satisfactory drives, and LED lamp adopts some LED lamp pearls to be in series conventionally at present, discreteness due to LED lamp pearl, if do not adopted constant current to drive, will cause lamp pearl brightness irregularities, the slight fluctuations of voltage can cause the great variety of electric current easily to cause LED lamp pearl overcurrent to shorten its useful life simultaneously, once and there is error-polarity connection phenomenon, can directly cause the damage of LED lamp pearl.
Utility model content
The utility model provides a kind of LED circuit for lamp, to solve LED lamp pearl that prior art exists because overcurrent or error-polarity connection cause the problem of damaging.
The utility model solves the technical scheme that its technical problem adopts:
A kind of LED circuit for lamp, mainly by current-limiting resistance, electric capacity, reverse-connection preventing circuit and some LED lamp pearls, formed, reverse-connection preventing circuit comprises comparator, triode and relay, triode is arranged between comparator and relay, comparator is connected with electric capacity, relay is arranged on the input of external power source, and some current-limiting resistances arrange between relay and some LED lamp pearls.
Between above-mentioned current-limiting resistance for being connected in parallel.
Above-mentioned LED lamp pearl adopts dot matrix syndeton.
The utility model is simple in structure, with low cost, by current-limiting resistance being set in existing LED circuit for lamp, by resistance, limit operating current, electric current is controlled, effectively extended the working life of product, reverse-connection preventing circuit is set simultaneously, can prevents that in installation and maintenance process due to error-polarity connection people is burning of the element that causes and light source.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is circuit diagram of the present utility model.
1 current-limiting resistance, 2 electric capacity, 3 comparators, 4 triodes, 5 relays, 6LED lamp pearl, 7 external power sources in figure.
Embodiment
As shown in the figure, a kind of LED circuit for lamp, mainly by current-limiting resistance 1, electric capacity 2, reverse-connection preventing circuit and some LED lamp pearls 6, formed, reverse-connection preventing circuit comprises comparator 3, triode 4 and relay 5, and triode 4 is arranged between comparator 3 and relay 5, and comparator 3 is connected with electric capacity 2, relay 5 is arranged on the input of external power source 7, some current-limiting resistances 1 arrange between relay 5 and some LED lamp pearls 6, and between current-limiting resistance 1, for being connected in parallel, LED lamp pearl 6 adopts dot matrix syndeton.

Claims (3)

1. a LED circuit for lamp, it is characterized in that mainly by current-limiting resistance, electric capacity, reverse-connection preventing circuit and some LED lamp pearls, being formed, reverse-connection preventing circuit comprises comparator, triode and relay, triode is arranged between comparator and relay, comparator is connected with electric capacity, relay is arranged on the input of external power source, and some current-limiting resistances arrange between relay and some LED lamp pearls.
2. LED circuit for lamp according to claim 1, is characterized in that between current-limiting resistance for being connected in parallel.
3. LED circuit for lamp according to claim 1, is characterized in that LED lamp pearl adopts dot matrix syndeton.
CN201320300993.5U 2013-05-29 2013-05-29 Led lamp circuit Expired - Fee Related CN203407035U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320300993.5U CN203407035U (en) 2013-05-29 2013-05-29 Led lamp circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320300993.5U CN203407035U (en) 2013-05-29 2013-05-29 Led lamp circuit

Publications (1)

Publication Number Publication Date
CN203407035U true CN203407035U (en) 2014-01-22

Family

ID=49942953

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320300993.5U Expired - Fee Related CN203407035U (en) 2013-05-29 2013-05-29 Led lamp circuit

Country Status (1)

Country Link
CN (1) CN203407035U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106376135A (en) * 2016-10-19 2017-02-01 成都言行果科技有限公司 LED lamp circuit based on power supply heat-dissipating structure
CN106655145A (en) * 2016-11-17 2017-05-10 深圳市科陆电子科技股份有限公司 Battery bus voltage reverse connection protection circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106376135A (en) * 2016-10-19 2017-02-01 成都言行果科技有限公司 LED lamp circuit based on power supply heat-dissipating structure
CN106655145A (en) * 2016-11-17 2017-05-10 深圳市科陆电子科技股份有限公司 Battery bus voltage reverse connection protection circuit
CN106655145B (en) * 2016-11-17 2018-12-07 深圳市科陆电子科技股份有限公司 A kind of battery power feeds electric voltage reverse-connection protection circuit

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Legal Events

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

Granted publication date: 20140122

Termination date: 20190529

CF01 Termination of patent right due to non-payment of annual fee