CN104955222A - LED drive power supply - Google Patents

LED drive power supply Download PDF

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Publication number
CN104955222A
CN104955222A CN201510275027.6A CN201510275027A CN104955222A CN 104955222 A CN104955222 A CN 104955222A CN 201510275027 A CN201510275027 A CN 201510275027A CN 104955222 A CN104955222 A CN 104955222A
Authority
CN
China
Prior art keywords
module
control module
led drive
switching modules
drive power
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
Application number
CN201510275027.6A
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Chinese (zh)
Inventor
曾玥
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.)
Chengdu Grace Culture Communication Co Ltd
Original Assignee
Chengdu Grace Culture Communication 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 Chengdu Grace Culture Communication Co Ltd filed Critical Chengdu Grace Culture Communication Co Ltd
Priority to CN201510275027.6A priority Critical patent/CN104955222A/en
Publication of CN104955222A publication Critical patent/CN104955222A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an LED drive power supply, comprising a filter module, a rectifier module, a power switch module, a transformer, a rectifier, an LC filter, a constant-current constant-voltage control module, a master control module, a temperature sensor and an alarm module. The master control module is connected with the power switch module, the temperature sensor and the alarm module. The input end of the filter module is connected with a mains supply. The output end of the filter module is connected in order with the rectifier module, the power switch module, the transformer, the rectifier, the LC filter and the constant-current constant-voltage control module. The output end of the constant-current constant-voltage control module is connected with an LED load. According to the LED drive power supply, the temperature sensor is used to detect in real time the temperature of the LED drive power supply, the master control module controls on or off of the power switch module, and the accidents caused by overheating of the LED drive power supply are effectively prevented.

Description

LED drive power
Technical field
The present invention 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 lamp can not directly with civil power get involved, must be direct current, so time LED light fixture 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 driving 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.
Summary of the invention
The object of the present invention 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 object of the invention 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 present invention compared with prior art, its remarkable advantage: (1) LED drive power of the present invention 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) LED drive power of the present invention 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) LED drive power of the present invention 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) LED drive power of the present invention 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 present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of LED drive power of the present invention.
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 LED drive power of the present invention: after LED drive power of the present invention 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 LED drive power course of work of the present invention, 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.
LED drive power of the present invention 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 LED drive power of the present invention 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; LED drive power of the present invention has that structure is simple, production technology is simple, cost is low and the feature of long service life.

Claims (1)

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 successively, power switching modules, transformer, rectifier, LC filter, constant current constant voltage control module, the output of described constant current constant voltage control module is connected with LED load, described main control module adopts C51 singlechip chip, described temperature sensor adopts explosion-proof thermocouple IEC584 transducer, overcurrent protective device is provided with between described rectification module and power switching modules, described filtration module adopts electromagnetic interface filter, described rectification module adopts bridge rectifier module RS808, described power switching modules adopts high-power MOS fet power driving tube, described constant current constant voltage control module adopts TL431 integrated circuit.
CN201510275027.6A 2015-05-27 2015-05-27 LED drive power supply Pending CN104955222A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510275027.6A CN104955222A (en) 2015-05-27 2015-05-27 LED drive power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510275027.6A CN104955222A (en) 2015-05-27 2015-05-27 LED drive power supply

Publications (1)

Publication Number Publication Date
CN104955222A true CN104955222A (en) 2015-09-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510275027.6A Pending CN104955222A (en) 2015-05-27 2015-05-27 LED drive power supply

Country Status (1)

Country Link
CN (1) CN104955222A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108684108A (en) * 2016-08-02 2018-10-19 施淑琴 LED drive power
CN112543533A (en) * 2020-12-30 2021-03-23 铜陵迈维电子科技有限公司 Topological structure of intelligent high-power LED driving power supply

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202269066U (en) * 2011-10-19 2012-06-06 湖北云川光电科技有限公司 LED bulb lamp driver with temperature control
CN202475890U (en) * 2012-03-12 2012-10-03 青岛莱菲迪光电科技有限公司 Constant-current constant-temperature driving power supply for LEDs (light-emitting diodes)
CN203840609U (en) * 2014-05-05 2014-09-17 长治市华杰光电科技有限公司 LED circuit having overheating protection function
CN104427700A (en) * 2013-09-04 2015-03-18 深圳市海洋王照明工程有限公司 Overheating protection circuit, LED (light-emitting diode) drive circuit and lamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202269066U (en) * 2011-10-19 2012-06-06 湖北云川光电科技有限公司 LED bulb lamp driver with temperature control
CN202475890U (en) * 2012-03-12 2012-10-03 青岛莱菲迪光电科技有限公司 Constant-current constant-temperature driving power supply for LEDs (light-emitting diodes)
CN104427700A (en) * 2013-09-04 2015-03-18 深圳市海洋王照明工程有限公司 Overheating protection circuit, LED (light-emitting diode) drive circuit and lamp
CN203840609U (en) * 2014-05-05 2014-09-17 长治市华杰光电科技有限公司 LED circuit having overheating protection function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108684108A (en) * 2016-08-02 2018-10-19 施淑琴 LED drive power
CN112543533A (en) * 2020-12-30 2021-03-23 铜陵迈维电子科技有限公司 Topological structure of intelligent high-power LED driving power supply

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Application publication date: 20150930

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