CN202005010U - Practical LED energy saving lamp - Google Patents

Practical LED energy saving lamp Download PDF

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Publication number
CN202005010U
CN202005010U CN2010206152842U CN201020615284U CN202005010U CN 202005010 U CN202005010 U CN 202005010U CN 2010206152842 U CN2010206152842 U CN 2010206152842U CN 201020615284 U CN201020615284 U CN 201020615284U CN 202005010 U CN202005010 U CN 202005010U
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circuit
output
electrically connected
input
filter circuit
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CN2010206152842U
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高强
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CHENGDU SHUANGQIANG LIGHTING TECHNOLOGY Co Ltd
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CHENGDU SHUANGQIANG LIGHTING TECHNOLOGY Co Ltd
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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
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30—Reactive power compensation
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/40—Arrangements for reducing harmonics

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Abstract

本实用新型公开了一种实用LED节能灯，包括市电输入、输入保护电路、整流滤波电路、EMI滤波电路、开关稳压稳流电路、输出取样电路和输出及保护电路，输入保护电路的输入端与市电输入电连，输出端与EMI滤波电路的输入端电连，EMI滤波电路的输出端与整流滤波电路的输入端电连，整流滤波电路的输出端与开关稳压稳流电路的输入端电连，开关稳压稳流电路的输出端与输出取样电路的输入端电连，输出取样电路的输出端与输出及保护电路和开关稳压稳流电路的输入端电连。这种LED节能灯使用安全、环保，使用寿命长，可靠性高，且成本低廉。

Figure 201020615284

The utility model discloses a practical LED energy-saving lamp, which comprises a mains input, an input protection circuit, a rectification filter circuit, an EMI filter circuit, a switch voltage and current stabilization circuit, an output sampling circuit, an output and protection circuit, and an input of the input protection circuit. The output terminal is electrically connected to the input terminal of the mains power supply, the output terminal is electrically connected to the input terminal of the EMI filter circuit, the output terminal of the EMI filter circuit is electrically connected to the input terminal of the rectification filter circuit, and the output terminal of the rectification filter circuit is connected to the switch voltage and current stabilization circuit. The input end is electrically connected, the output end of the switching voltage stabilizing circuit is electrically connected with the input end of the output sampling circuit, and the output end of the output sampling circuit is electrically connected with the output and protection circuit and the input end of the switching voltage stabilizing circuit. The LED energy-saving lamp is safe in use, environment-friendly, long in service life, high in reliability and low in cost.

Figure 201020615284

Description

Practical LED electricity-saving lamp
Technical field
The utility model relates to a kind of electricity-saving lamp, particularly a kind of practical LED electricity-saving lamp.
Background technology
The lamp pearl of LED electricity-saving lamp is a kind of semiconductor solid luminescence device, and it is to utilize the solid semiconductor chip as luminescent material, and when two ends add forward voltage, the charge carrier in the semiconductor takes place compoundly to cause photo emissions and produce light.Because LED electricity-saving lamp good energy-conserving effect, everybody all fund input in the manufacturing of LED electricity-saving lamp.From the manufacturing principle of LED and voltage-current characteristic as can be known, LED needs constant electric current power supply, and it is reliable that heat radiation is wanted, otherwise can shorten the useful life of LED greatly.The LED electricity-saving lamp great majority of now producing on the market and selling adopt general Switching Power Supply (being constant pressure source) or capacitance resistance step-down mode, can not guarantee constant electric current power supply.Another is common isolated form constant current LED lamp, and number of elements is many, and impact resistance is poor, and the life-span, short also the application to LED brought no small loss.Existing LED electricity-saving lamp constant current weak effect, impact resistance is poor, and the life-span is poor, can not guarantee the life-span of LED lamp lamp pearl, and light decay is serious, poor reliability, power factor is low, and is bigger to electrical network harm.
The utility model content
The purpose of this utility model just is to provide a kind of safe in utilization, environmental protection, and the life-span is long, and reliability height, and the low practical LED electricity-saving lamp of cost can effectively address the above problem.
To achieve these goals; the technical solution adopted in the utility model is such: practical LED electricity-saving lamp of the present utility model; comprise the civil power input; input protection circuit; current rectifying and wave filtering circuit; the EMI filter circuit; the switch voltage-stabilizing current stabilization circuit; output sampling circuit and output and protective circuit; the input of input protection circuit and civil power input are electrically connected; the input of output and EMI filter circuit is electrically connected; the output of EMI filter circuit and the input of current rectifying and wave filtering circuit are electrically connected; the input of the output of current rectifying and wave filtering circuit and switch voltage-stabilizing current stabilization circuit is electrically connected; the output of switch voltage-stabilizing current stabilization circuit and the input of output sampling circuit are electrically connected, and the input of the output of output sampling circuit and output and protective circuit and switch voltage-stabilizing current stabilization circuit is electrically connected.
As preferably; described EMI filter circuit is by two inductance L 1, L2; two resistance R 1, R2 and two capacitor C 1, C2 form; two inductance L 1, L2 two ends are electrically connected with input protection circuit and current rectifying and wave filtering circuit respectively; resistance R 1 is in parallel with inductance L 1; resistance R 2 is in parallel with inductance L 2, and two capacitor C 1, C2 are connected between the peer of two resistance R 1, R2.
As preferably, described current rectifying and wave filtering circuit is by rectifier bridge, three capacitor C 3, C4, C5, three diode D1, D2, D3 and resistance R 4 are formed, rectifier bridge is connected with the EMI filter circuit, and capacitor C 4, diode D2 and resistance R 4 series connection backs are in parallel with diode D3, connect with capacitor C 5 again, be electrically connected with rectifier bridge and switch voltage-stabilizing current stabilization circuit with capacitor C 3 backs in parallel then, diode D1 is connected in parallel between diode D2 and the rectifier bridge.
As preferably, described output and protective circuit comprise three diode D4, D5, D6, a capacitor C 8 and a resistance R 7; diode D4, D5 series connection; capacitor C 8 is connected with diode D4 with resistance R 7 backs in parallel, and is in parallel with diode D4, D5 again, is electrically connected with output sampling circuit then.
Compared with prior art, advantage of the present utility model is:
1, voltage adaptation wide ranges: when alternating current changed between 265V at 85V, output current remained unchanged, thereby made also no change of brightness, i.e. brightness constancy.
2, constant current is effective; Can guarantee that under the control of IC ic power the fluctuation range of output current is in 3%, the LED lamp is made of semiconductor light-emitting-diode, the characteristic of light-emitting diode has determined it only to work under constant electric current could guarantee its life-span, and is unlikely to very fast damage.
3, the life-span of LED lamp is long: can use more than 50,000 hours, because the driving of LED lamp adopts advanced constant-current source to drive, have highly stable output current and perfect protective circuit.
5, good impact resistance: switch all has good impact resistance when low pressure or high voltage startup repeatedly, can guarantee that switch is not damaged repeatedly.
6, conversion efficiency height: the power source conversion of this circuit has adopted the switch PWM mode, can reach more than 85% thereby improved utilance, thereby the LED lamp of comparing other is more reliable, more energy-conservation.
7, power factor (PF) height: owing to adopted the valley fill type filter circuit that power factor (PF) is improved greatly, guarantee, thereby improved the utilance of electrical network more than 0.9.
Description of drawings
Fig. 1 is a functional block diagram of the present utility model;
Fig. 2 is the utility model circuit diagram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1 and Fig. 2; practical LED electricity-saving lamp of the present utility model; comprise the civil power input; input protection circuit; current rectifying and wave filtering circuit; the EMI filter circuit; the switch voltage-stabilizing current stabilization circuit; output sampling circuit and output and protective circuit; the input of input protection circuit and civil power input are electrically connected; the input of output and EMI filter circuit is electrically connected; the output of EMI filter circuit and the input of current rectifying and wave filtering circuit are electrically connected; the input of the output of current rectifying and wave filtering circuit and switch voltage-stabilizing current stabilization circuit is electrically connected; the output of switch voltage-stabilizing current stabilization circuit and the input of output sampling circuit are electrically connected, and the input of the output of output sampling circuit and output and protective circuit and switch voltage-stabilizing current stabilization circuit is electrically connected.
Described EMI filter circuit is by two inductance L 1, L2; two resistance R 1, R2 and two capacitor C 1, C2 form; two inductance L 1, L2 two ends are electrically connected with input protection circuit and current rectifying and wave filtering circuit respectively; resistance R 1 is in parallel with inductance L 1; resistance R 2 is in parallel with inductance L 2, and two capacitor C 1, C2 are connected between the peer of two resistance R 1, R2.
Described current rectifying and wave filtering circuit is by rectifier bridge, three capacitor C 3, C4, C5, three diode D1, D2, D3 and resistance R 4 are formed, rectifier bridge is connected with the EMI filter circuit, capacitor C 4, diode D2 and resistance R 4 series connection backs are in parallel with diode D3, connect with capacitor C 5, be electrically connected with rectifier bridge and switch voltage-stabilizing current stabilization circuit with capacitor C 3 backs in parallel then, diode D1 is connected in parallel between diode D2 and the rectifier bridge.
Described output and protective circuit comprise three diode D4, D5, D6; a capacitor C 8 and a resistance R 7, diode D4, D5 series connection, capacitor C 8 is connected with diode D4 with resistance R 7 backs in parallel; in parallel with diode D4, D5 again, be electrically connected with output sampling circuit then.
Electric main after fuse F1 insurance by piezo-resistance VDR overvoltage protection; prevent that line voltage is too high; the impact of also can prevent thunder and lightning, surging etc.; guarantee that the LED lamp can not damage because of the fluctuation of electrical network and the impact of surging, extraneous high electricity and user's frequent switch lamp, guarantees the long-life of LED lamp.By inductance L 1, L2, resistance R 1, R2, capacitor C 1, C2 form the EMI filter circuit, prevent that High-frequency Interference from exerting an influence to other electrical equipment and human body.Resistance R T and resistance R 3 are formed circuit overcurrent protection; guarantee the soft start of switch step-down IC; again after rectifier bridge DD1 rectification by capacitor C 3, C4, C5; diode D1, D2, D3 and resistance R 4 are formed current rectifying and wave filtering circuit; the smoothness that is used for corrected power factor and Rectified alternating current; the power factor (PF) of circuit is reached more than 0.9; guarantee the smoothness of input current simultaneously with the utilization ratio that improves electrical network; send into again in the integrated circuit under the effect of IC switch PWM control mode, stablize output current.When the electric current of the feedback pin of chip module surpasses certain value in flowing to the IC switch, adjust in the switching time that the generation of the two ends of resistance R 6 and capacitor C 7 is sent into 4 pairs of switch modules of feedback pin above 2 volts voltage, thus the stability of assurance output current.Adjusted output current releases energy through diode D4 commutation capacitor C8 filtering when switching tube ends through inductance L 3 energy storage, then output.Resistance R 7 plays steady load and repid discharge, can bleed off the voltage at capacitor C 8 two ends when powered-down fast, guarantees that the LED lamp can extinguish fast.Diode D5, D6 conducting when load open circuit limits output voltage and keeps less output current, thereby guarantees that the IC integrated package can not damage because of unloaded.
This circuit performance is superior, and is with low cost, and number of elements is few, and good stability guarantees LED lamp long service life.

Claims (4)

1.一种实用LED节能灯，包括市电输入、输入保护电路和整流滤波电路，其特征在于：还包括EMI滤波电路、开关稳压稳流电路、输出取样电路和输出及保护电路，输入保护电路的输入端与市电输入电连，输出端与EMI滤波电路的输入端电连，EMI滤波电路的输出端与整流滤波电路的输入端电连，整流滤波电路的输出端与开关稳压稳流电路的输入端电连，开关稳压稳流电路的输出端与输出取样电路的输入端电连，输出取样电路的输出端与输出及保护电路和开关稳压稳流电路的输入端电连。1. A practical LED energy-saving lamp, comprising mains input, input protection circuit and rectification filter circuit, is characterized in that: also comprises EMI filter circuit, switch voltage stabilization circuit, output sampling circuit and output and protection circuit, input protection circuit The input end of the circuit is electrically connected to the mains input, the output end is electrically connected to the input end of the EMI filter circuit, the output end of the EMI filter circuit is electrically connected to the input end of the rectification filter circuit, the output end of the rectification filter circuit is electrically connected to the switch regulator The input end of the current circuit is electrically connected, the output end of the switching voltage stabilizing circuit is electrically connected with the input end of the output sampling circuit, the output end of the output sampling circuit is electrically connected with the output and protection circuit and the input end of the switching voltage stabilizing circuit . 2.根据权利要求1所述的实用LED节能灯，其特征在于：所述EMI滤波电路由两个电感L1、L2，两个电阻R1、R2和两个电容C1、C2组成，两电感L1、L2两端分别与输入保护电路和整流滤波电路电连，电阻R1与电感L1并联，电阻R2与电感L2并联，两电容C1、C2分别连接在两电阻R1、R2的同级之间。2. The practical LED energy-saving lamp according to claim 1, characterized in that: the EMI filter circuit is composed of two inductors L1, L2, two resistors R1, R2 and two capacitors C1, C2, two inductors L1, Both ends of L2 are electrically connected to the input protection circuit and the rectifier filter circuit respectively, the resistor R1 is connected in parallel with the inductor L1, the resistor R2 is connected in parallel with the inductor L2, and the two capacitors C1 and C2 are respectively connected between the same stages of the two resistors R1 and R2. 3.根据权利要求1所述的实用LED节能灯，其特征在于：所述整流滤波电路由整流桥，三个电容C3、C4、C5，三个二极管D1、D2、D3和一个电阻R4组成，整流桥与EMI滤波电路连接，电容C4、二极管D2和电阻R4串联后与二极管D3并联，再与电容C5串联，然后与电容C3并联后与整流桥和开关稳压稳流电路电连，二极管D1并联在二极管D2与整流桥之间。3. The practical LED energy-saving lamp according to claim 1, characterized in that: the rectification filter circuit is composed of a rectifier bridge, three capacitors C3, C4, C5, three diodes D1, D2, D3 and a resistor R4, The rectifier bridge is connected to the EMI filter circuit, the capacitor C4, the diode D2 and the resistor R4 are connected in parallel with the diode D3 in series, and then connected in series with the capacitor C5, and then connected in parallel with the capacitor C3, and then electrically connected with the rectifier bridge and the switch voltage regulator circuit, and the diode D1 It is connected in parallel between the diode D2 and the rectifier bridge. 4.根据权利要求1所述的实用LED节能灯，其特征在于：所述输出及保护电路包括三个二极管D4、D5、D6，一个电容C8和一个电阻R7，二极管D4、D5串联，电容C8与电阻R7并联后与二极管D4串联，再与二极管D4、D5并联，然后与输出取样电路电连。4. The practical LED energy-saving lamp according to claim 1, characterized in that: the output and protection circuit includes three diodes D4, D5, D6, a capacitor C8 and a resistor R7, the diodes D4 and D5 are connected in series, and the capacitor C8 After being connected in parallel with resistor R7, it is connected in series with diode D4, then in parallel with diodes D4 and D5, and then electrically connected with the output sampling circuit.
CN2010206152842U 2010-11-18 2010-11-18 Practical LED energy saving lamp Expired - Fee Related CN202005010U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104993722A (en) * 2015-07-26 2015-10-21 安徽彼德森电气设备有限公司 High-frequency switch rectifying module
CN107222113A (en) * 2016-12-28 2017-09-29 中国航天电子技术研究院 A kind of wide pressure or voltage-stabilized power supply circuit with self feed back self-protection function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104993722A (en) * 2015-07-26 2015-10-21 安徽彼德森电气设备有限公司 High-frequency switch rectifying module
CN107222113A (en) * 2016-12-28 2017-09-29 中国航天电子技术研究院 A kind of wide pressure or voltage-stabilized power supply circuit with self feed back self-protection function
CN107222113B (en) * 2016-12-28 2019-12-31 中国航天电子技术研究院 Wide voltage or voltage-stabilized power supply circuit with self-feedback self-protection function

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