CN204795703U - LED drive power supply - Google Patents
LED drive power supply Download PDFInfo
- Publication number
- CN204795703U CN204795703U CN201520347309.8U CN201520347309U CN204795703U CN 204795703 U CN204795703 U CN 204795703U CN 201520347309 U CN201520347309 U CN 201520347309U CN 204795703 U CN204795703 U CN 204795703U
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- module
- led drive
- control module
- drive power
- main control
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a LED drive power supply, including filter module, rectifier module, power switch module, transformer, rectifier, LC wave filter, constant current and constant voltage control module, the main control module, temperature sensor and alarm module, the main control module is connected with power switch module, temperature sensor, alarm module respectively, filter module's input is connected with mains supply, and filter module's output connects gradually rectifier module, power switch module, transformer, rectifier, LC wave filter, constant current and constant voltage control module, the output and the LED load phase of constant current and constant voltage control module are connected, the utility model discloses LED drive power supply adopts temperature sensor real -time detection LED drive power supply's temperature, through the break -make of the main control module control power switch module, prevents effectively that LED drive power supply is because of the overheated accident that leads to the emergence.
Description
Technical field
The utility model relates to power technique fields, particularly a kind of LED drive power.
Background technology
LED has that volume is little, long service life, voltage are low, high brightness is low in calories, the advantage of energy-conserving and environment-protective, and widelyd popularize by country, the parent being more and more subject to user looks at; Due to LED can not directly with civil power get involved, must be direct current, so time LED lamp connects mains-supplied, must by the 220V AC conversion of civil power be first just LED lamp can low-voltage DC.
LED drive power of the prior art has that complex structure, processing technology are loaded down with trivial details, high in cost of production shortcoming mostly, and the electric current and voltage of LED drive power is non-constant, reduces the useful life of LED; LED drive power in use temperature is very high, and when temperature arrives too high, LED drive power is easily burnt or exploded, the safety of harm people.
Utility model content
The purpose of this utility model is to provide the LED drive power that a kind of structure is simple, reliability is high, fail safe is good.
The technical solution realizing the utility model object is: a kind of LED drive power, comprises filtration module, rectification module, power switching modules, transformer, rectifier, LC filter, constant current constant voltage control module, main control module, temperature sensor and alarm module; Described main control module is connected with power switching modules, temperature sensor, alarm module respectively, and control signal is transferred to power switching modules and alarm module by main control module, and main control module receives the signal that temperature sensor transmits; The input of described filtration module is connected with mains supply, the output of filtration module connects rectification module, power switching modules, transformer, rectifier, LC filter, constant current constant voltage control module successively, and the output of described constant current constant voltage control module is connected with LED load.
Preferably, described main control module adopts C51 singlechip chip.
Preferably, described temperature sensor adopts explosion-proof thermocouple IEC584 transducer.
Preferably, overcurrent protective device is provided with between described rectification module and power switching modules.
Preferably, described filtration module adopts electromagnetic interface filter.
Preferably, described rectification module adopts bridge rectifier module RS808.
Preferably, described power switching modules adopts high-power MOS fet power driving tube.
Preferably, described constant current constant voltage control module adopts TL431 integrated circuit.
The utility model compared with prior art, its remarkable advantage: (1) the utility model LED drive power adopts temperature sensor to detect the temperature of LED drive power in real time, controlled the break-make of power switching modules by main control module, effectively prevent LED drive power because of the overheated accident causing occurring.
(2) the utility model LED drive power adopts electromagnetic interface filter to carry out filtering, inhibits the interference of high frequency, improves the reliability of LED drive power, guarantee that LED drive power normally works.
(3) the utility model LED drive power adopts constant current constant voltage control module, effectively controls the stability of LED drive power, ensure that LED drive power provides constant voltage, electric current to LED load.
(4) the utility model LED drive power has that structure is simple, production technology is simple, cost is low and the feature of long service life.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model LED drive power.
Embodiment
As shown in Figure 1: a kind of LED drive power, filtration module, rectification module, power switching modules, transformer, rectifier, LC filter, constant current constant voltage control module, main control module, temperature sensor and alarm module is comprised; Described main control module is connected with power switching modules, temperature sensor, alarm module respectively, and control signal is transferred to power switching modules and alarm module by main control module, and main control module receives the signal that temperature sensor transmits; The input of described filtration module is connected with mains supply, the output of filtration module connects rectification module, power switching modules, transformer, rectifier, LC filter, constant current constant voltage control module successively, and the output of described constant current constant voltage control module is connected with LED load; Overcurrent protective device is provided with between described rectification module and power switching modules; Wherein, described main control module adopts C51 singlechip chip, temperature sensor adopts explosion-proof thermocouple IEC584 transducer, filtration module adopts electromagnetic interface filter, rectification module adopts bridge rectifier module RS808, power switching modules adopts high-power MOS fet power driving tube, and constant current constant voltage control module adopts TL431 integrated circuit.
The operation principle of the utility model LED drive power: after the utility model LED drive power connects mains supply, electromagnetic interface filter is adopted to carry out filtering, by bridge rectifier module RS808, mains ac power supply is rectified into DC power supply again, after DC power supply opens high-power MOS fet power driving tube, inflow transformer carries out step-down, again by the further rectification of rectifier, filtering is carried out by LC filter, finally by constant current constant voltage control module control voltage, electric current constant, be supplied to LED load use; In the utility model LED drive power course of work, temperature sensor detects the temperature of LED drive power in real time, temperature sensor sends signal to main control module, when temperature is too high, main control module controls power switching modules and disconnects, and control alarm module and send electric bell alarming, notify that staff safeguards in time.
The utility model LED drive power adopts temperature sensor to detect the temperature of LED drive power in real time, is controlled the break-make of power switching modules by main control module, effectively prevents LED drive power because of the overheated accident causing occurring; LED drive power adopts electromagnetic interface filter to carry out filtering, inhibit the interference of high frequency, improve the reliability of LED drive power, guarantee that LED drive power normally works, and the utility model LED drive power adopts constant current constant voltage control module, effectively control the stability of LED drive power, ensure that LED drive power provides constant voltage, electric current to LED load; The utility model LED drive power has that structure is simple, production technology is simple, cost is low and the feature of long service life.
Claims (8)
1. a LED drive power, is characterized in that, comprises filtration module, rectification module, power switching modules, transformer, rectifier, LC filter, constant current constant voltage control module, main control module, temperature sensor and alarm module; Described main control module is connected with power switching modules, temperature sensor, alarm module respectively, and control signal is transferred to power switching modules and alarm module by main control module, and main control module receives the signal that temperature sensor transmits; The input of described filtration module is connected with mains supply, the output of filtration module connects rectification module, power switching modules, transformer, rectifier, LC filter, constant current constant voltage control module successively, and the output of described constant current constant voltage control module is connected with LED load.
2. LED drive power according to claim 1, is characterized in that, described main control module adopts C51 singlechip chip.
3. LED drive power according to claim 1, is characterized in that, described temperature sensor adopts explosion-proof thermocouple IEC584 transducer.
4. LED drive power according to claim 1, is characterized in that, is provided with overcurrent protective device between described rectification module and power switching modules.
5. LED drive power according to claim 1, is characterized in that, described filtration module adopts electromagnetic interface filter.
6. LED drive power according to claim 1, is characterized in that, described rectification module adopts bridge rectifier module RS808.
7. LED drive power according to claim 1, is characterized in that, described power switching modules adopts high-power MOS fet power driving tube.
8. LED drive power according to claim 1, is characterized in that, described constant current constant voltage control module adopts TL431 integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520347309.8U CN204795703U (en) | 2015-05-27 | 2015-05-27 | LED drive power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520347309.8U CN204795703U (en) | 2015-05-27 | 2015-05-27 | LED drive power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204795703U true CN204795703U (en) | 2015-11-18 |
Family
ID=54535661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520347309.8U Expired - Fee Related CN204795703U (en) | 2015-05-27 | 2015-05-27 | LED drive power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204795703U (en) |
-
2015
- 2015-05-27 CN CN201520347309.8U patent/CN204795703U/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: 20151118 Termination date: 20160527 |