CN203193987U - LED streetlamp circuit capable of adjusting current, voltage and temperature automatically - Google Patents
LED streetlamp circuit capable of adjusting current, voltage and temperature automatically Download PDFInfo
- Publication number
- CN203193987U CN203193987U CN2013202225369U CN201320222536U CN203193987U CN 203193987 U CN203193987 U CN 203193987U CN 2013202225369 U CN2013202225369 U CN 2013202225369U CN 201320222536 U CN201320222536 U CN 201320222536U CN 203193987 U CN203193987 U CN 203193987U
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model provides an LED streetlamp circuit capable of adjusting current, voltage and temperature automatically. The LED streetlamp circuit capable of adjusting current, voltage and temperature automatically is composed of a voltage AC input circuit, an R/C circuit, an AC/DC rectifying circuit, a current-limiting resistor R0, a filtering circuit, a detection circuit IC1, a detection circuit IC2 and a detection circuit IC3. The AC/DC rectifying circuit is connected with the current-limiting resistor R0. The filtering output circuit is connected with a load LED. An output terminal of the load LED is connected with the detection circuit IC3. An output terminal of the current-limiting resistor R0 is connected with the detection circuit IC1. The LED streetlamp circuit capable of adjusting current, voltage and temperature automatically is characterized in that an output terminal of the current-limiting resistor R0 is also connected with the detection circuit IC1 and the detection circuit IC2 is arranged between the detection circuit IC1 and the detection circuit IC3. The LED streetlamp circuit capable of adjusting current, voltage and temperature automatically provided by the utility model can adjust current, voltage and temperature of the LED automatically according to changes of voltage and load and the temperature of the LED. A problem that a traditional LED is easy to produce heat and depends much on heat dissipation capacity of a radiator is solved. The LED streetlamp circuit capable of adjusting current, voltage and temperature automatically is high in reliability. LED streetlamp power is controlled within a rated temperature range and product service lifetime reaches to 100,000 hours.
Description
Technical field
The utility model relates to a kind of LED road lamp power supply and realizes regulating automatically control, relates in particular to the LED electric current, voltage, and the variation of temperature and load is controlled automatically, makes LED adapt to operating voltage and electric current automatically.Prolong LED useful life.
Background technology
The LED power supply of at present domestic and international famous brand name adopts the mode of power supplies such as constant current, constant voltage, capacitance-resistance mostly, has defective in various degree.1: constant-current supply is with the LED series connection, and mode in parallel calculates a kind of power supply of the electric current office of gross power.When break down in a certain road of LED, the LED of operate as normal will be under the non-state and work, and the electric current in the specified unit can not change, and normal LED operating current is just strengthened suddenly virtually.Cause to be in the LED that works under the normal condition and will to produce quick light decay early stage the damage.Thereby cause the whole LED lamp not work.2: constant voltage, the capacitance-resistance power supply: the LED properties of materials has determined it affected by environment bigger, the variation of temperature, voltage is when power source voltage changes, even several variation at percent zero point.Electric current will increase, and temperature rises, and shorten the useful life of same LED, and the LED street lamp can not be worked.
Summary of the invention
At the actual condition of above-mentioned LED road lamp power supply, the purpose of this utility model is to provide the LED street lamp circuit of a kind of automatic adjusting current/voltage and temperature, is at current-limiting resistance R
0Output and the LED street lamp between be provided with testing circuit IC
1, testing circuit IC
2, the output of LED street lamp is provided with testing circuit IC
3, making no matter which paths of LEDs has problem, street lamp can both be in normal operating conditions.
The technical solution of the utility model realizes in the following manner: the LED street lamp circuit of a kind of automatic adjusting current/voltage and temperature, and by voltage AC input circuit, capacitance-resistance R/C circuit, AC/DC rectification circuit, current-limiting resistance R
0And filter circuit, load LED, testing circuit IC
1, IC
2And IC
3Form AC/DC rectification circuit and current-limiting resistance R
0Connect, the filtering output circuit is connected with load LED, and the output of load LED is connected with testing circuit IC
3, it is characterized in that: described current-limiting resistance R
0Output also be provided with testing circuit IC
1, testing circuit IC
1With testing circuit IC
3Between also be provided with and detect control circuit IC
2
Described testing circuit IC
1Be detectability leakage resistance R
0Potential difference; Testing circuit IC
3Be the temperature sensing circuit of load LED, IC
2Be IC1, IC3 is for detecting control circuit.IC
2Feed back to R/C circuit automatic switchover R/C, the current/voltage of control load LED and variations in temperature.
The utility model can be according to voltage, and the current/voltage temperature of LED is regulated in the variation of electric current and load automatically.No matter which paths of LEDs has problem, LED can both be in normal operating conditions, keeps the light of self well-illuminated; According to the voltage-current characteristic of LED, solved that traditional LED easily produces high temperature and by increasing the difficult problem of radiator heat-dissipation; The reliability height, the LED road lamp power supply, control is in rated temperature, and life of product can reach 100000 hours.
Description of drawings
Fig. 1 is block diagram of the present utility model.
Fig. 2 is schematic diagram of the present utility model.
Embodiment
Known that by Fig. 1 the LED street lamp circuit of a kind of automatic adjusting current/voltage and temperature is by voltage AC input circuit, R/C resistance-capacitance circuit, AC/DC rectification, current-limiting resistance R
0And filter circuit, load LED, testing circuit IC
1, IC
2And IC
3Form.AC/DC rectification circuit and current-limiting resistance R
0Connect, the filtering output circuit is connected with load LED, and the output of load LED is connected with testing circuit IC
3, described current-limiting resistance R
0Output also be provided with testing circuit IC
1, testing circuit IC
1With testing circuit IC
3Between also be provided with testing circuit IC
2
Described testing circuit IC
1Be detectability leakage resistance R
0Potential difference; Testing circuit IC
2Be IC1, IC3 is for detecting control circuit.IC
2Feed back to R/C circuit automatic switchover R/C, current/voltage and the variations in temperature of final control load LED.
Testing circuit IC
3Be the temperature sensing circuit of load LED, by testing circuit IC
2Feed back to resistance-capacitance circuit R/C, the electric current and voltage of control load LED and variations in temperature.
When AC voltage changes, when LED generation scarce a road or short circuit, be connected current-limiting resistance R
°Testing circuit IC
1Work is also passed through testing circuit IC
2Give resistance-capacitance circuit R/C, circuit automatic switchover R/C with signal feedback
,The current/voltage of control load LED and variations in temperature. export a stable power.
When described load LED working temperature surpasses rated temperature, testing circuit IC
3Work, by the I2 resistance-capacitance circuit R/C that automaticallyes switch, change output voltage Current Control temperature, working temperature, operating voltage, operating current are changed with load, led circuit reaches brightness and does not fall, electric current and voltage in ultra-voltage not, not supercurrent, not reliable and stable work in the environment of overtemperature degree, the purpose temp autocontrolled, that the life-span prolongs.
Claims (2)
1. LED street lamp circuit of automatically regulating current/voltage and temperature is by voltage AC input circuit, R/C resistance-capacitance circuit, AC/DC rectification, current-limiting resistance R
0And filter circuit, load LED, testing circuit IC
1, IC
2And IC
3Form; AC/DC rectification circuit and current-limiting resistance R
0Connect, the filtering output circuit is connected with load LED, and the output of load LED is connected with testing circuit IC
3, it is characterized in that: described current-limiting resistance R
0Output also be provided with testing circuit IC
1, testing circuit IC
1With testing circuit IC
3Between also be provided with testing circuit IC
2
2. the LED street lamp circuit of a kind of automatic adjusting current/voltage according to claim 1 and temperature is characterized in that: testing circuit IC
1Be detectability leakage resistance R
0Potential difference; Testing circuit IC
2Be I1, the detection control circuit of I3, IC
3Be the temperature sensing circuit of load LED, by testing circuit I1, the detection of I3 finally feeds back to IC
2Testing circuit is controlled R/C, electric current and voltage and the variation of temperature of final control load LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202225369U CN203193987U (en) | 2013-04-27 | 2013-04-27 | LED streetlamp circuit capable of adjusting current, voltage and temperature automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202225369U CN203193987U (en) | 2013-04-27 | 2013-04-27 | LED streetlamp circuit capable of adjusting current, voltage and temperature automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203193987U true CN203193987U (en) | 2013-09-11 |
Family
ID=49110809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202225369U Expired - Fee Related CN203193987U (en) | 2013-04-27 | 2013-04-27 | LED streetlamp circuit capable of adjusting current, voltage and temperature automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203193987U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200748A (en) * | 2013-04-27 | 2013-07-10 | 光明国际（镇江）电气有限公司 | LED (light-emitting diode) road lamp circuit capable of automatically adjusting current, voltage and temperature |
| CN103260315A (en) * | 2013-05-27 | 2013-08-21 | 光明国际（镇江）电气有限公司 | LED street lamp circuit |
-
2013
- 2013-04-27 CN CN2013202225369U patent/CN203193987U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200748A (en) * | 2013-04-27 | 2013-07-10 | 光明国际（镇江）电气有限公司 | LED (light-emitting diode) road lamp circuit capable of automatically adjusting current, voltage and temperature |
| CN103260315A (en) * | 2013-05-27 | 2013-08-21 | 光明国际（镇江）电气有限公司 | LED street lamp circuit |
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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: 20130911 Termination date: 20150427 |
|
| EXPY | Termination of patent right or utility model |