CN203457394U

CN203457394U - Driving circuit of compact fluorescent lamp

Info

Publication number: CN203457394U
Application number: CN201320561951.7U
Authority: CN
Inventors: 陆叶峰
Original assignee: HAINING MEIYUSHENG ELECTRONICS Co Ltd
Current assignee: HAINING MEIYUSHENG ELECTRONICS Co Ltd
Priority date: 2013-09-11
Filing date: 2013-09-11
Publication date: 2014-02-26
Anticipated expiration: 2023-09-11

Abstract

The utility model provides a driving circuit of a compact fluorescent lamp, and belongs to the technical field of driving circuits. The problem that in the prior art, the compact fluorescent lamp fails to be driven in conditions of various power voltages is solved. The driving circuit of the compact fluorescent lamp comprises an alternating current commercial power input terminal, a rectification unit connected with the alternating current commercial power input terminal, a filtering unit connected with an output terminal of the rectification unit, a unit chip UBA2213 and a peripheral circuit thereof connected with an output terminal of the filtering unit, and a compact fluorescent lamp driving unit. The driving circuit of the compact fluorescent lamp is advantaged by simple application and wide application range of power voltages.

Description

A kind of drive circuit of compact fluorescent lamp

Technical field

The utility model belongs to drive circuit technical field, relates to a kind of drive circuit, particularly a kind of drive circuit for the compact fluorescent lamp that drives.

Background technology

Compact fluorescent lamp (CFL) has now become the energy-conserving product of national political VIP and ordinary people widely known dawn, particularly be furnished with electric ballast and the integrated type product of selecting E27 screw cap, this series products is referred to as electricity-saving lamp, and generally acknowledges that it be the unique suitable light source of replacement incandescent lamp at present.Many countries, comprise our China, also release for this reason the compact fluorescent lamp of high-quality is sold to the policy of subsidizing.It is used that the electricity-saving lamp of 9W-15W completely can suitable domestic lighting, and the above compact fluorescent lamp of 18W can directly replace incandescent lamp more than 100W, now also has the appearance of 85W and 150W high-power compact fluorescent lamp product, can partly replace the use of HID light source.This class lamp institute adapted electric ballast, from resolution element, develops into use paster, integrated circuit even, and power factor reaches 0.98, and total harmonic distortion content (THD) is less than 10%, and the life-span of lamp is brought up to 10000h, also has Light modulating type product.But the life-span of electricity-saving lamp is restricting the development of industry, some electricity-saving lamps are used the just jaundice of two or three months fluorescent tube, and blackout, has not and then just worked.The life-span of whole electricity-saving lamp is mainly depended on fluorescent tube and ballast, the light decay of electricity-saving lamp depend primarily on electronic powder number, the tube wall load of fluorescent material and fluorescent tube, powder is poorer, the tube wall load more heavily light decay of pipe is also just more serious.The not necessarily fluorescent tube reason but blackout is just turned to be yellow, ballast is performed meritorious deeds never to be obliterated equally.In general, under the condition of fluorescent tube coupling, as long as fluorescent tube energy switch 100,000 times above (30S/ON, 90S/OFF), the life-span of electricity-saving lamp can surpass more than 30,000 hours mostly, bad be also because the electronic devices and components life-span to and terminate.Also have, nowadays electricity consumption is in short supply, and voltage ripple of power network is very large, and some areas are even up to ± 50%, even if the voltage fluctuation of electrical network ± 15% left and right of developed country.The fluctuation direct result of electrical network is exactly the damage of electrical appliance, and the electrical appliance as electricity-saving lamp so particularly, because volume is little, internal temperature is high, the use surplus of components and parts is limited etc., and after voltage raises, the power of electricity-saving lamp is also with regard to corresponding rising, the internal temperature of electricity-saving lamp also raises very soon, because electronic component design surplus is very little, the corresponding increasing of internal loss of electricity-saving lamp, raises so also aggravate its internal temperature, so vicious circle, has just aggravated the not long phenomenon of service life of energy-saving lamp.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of by improving peripheral circuit, is applicable to the compact fluorescent lamp drive circuit of various supply voltages and a series of power bracket fluorescent tubes.

The purpose of this utility model can realize by following technical proposal: a kind of compact fluorescent lamp drive circuit, it comprises electric main input, the rectification unit being connected with electric main input, the filter unit being connected with rectification unit output and the unit chip UBA2213 and the peripheral circuit thereof that are connected with filter unit output, compact fluorescent lamp driver element

Described chip UBA2213 and peripheral circuit thereof comprise chip UBA2213, resistance R 1, R2, capacitor C 5, C6, C7, C8, C9, the 1st pin of described chip UBA2213 connects the 2nd pin of chip UBA2213, the 4th pin of chip UBA2213, the 9th pin of chip UBA2213, the 10th pin of chip UBA2213, the 13rd pin of chip UBA2213, one end of capacitor C 7, one end of capacitor C 8, one end of capacitor C 9, one end of resistance R 2 and the negative output terminal of filter unit, the other end of resistance R 2 connects the 12nd pin of chip UBA2213, one end of the other end contact resistance R1 of capacitor C 7, the 6th pin of chip UBA2213, the other end of capacitor C 8 connects the 7th pin of chip UBA2213, the other end of resistance R 1 connects the 7th pin of chip UBA2213, the other end of capacitor C 9 connects the 8th pin of chip UBA2213, the 3rd pin of chip UBA2213 connects the positive output end of rectification unit, the 5th pin of chip UBA2213 connects one end of capacitor C 5, and the other end of capacitor C 5 connects the 14th pin of chip UBA2213, one end of capacitor C 6, the other end of capacitor C 6 connects the 11st pin of chip UBA2213,

Compact fluorescent lamp driver element comprises inductance L 2, capacitor C 4, one end of a termination load of described inductance L 2, and the 14th pin of another chip termination UBA2213 of described inductance L 2, described capacitor C 4 two ends connect respectively the two ends of load.

Further, described rectification unit comprises fuse FUSE and diode D1, D2, D3, D4, and described diode D1, D2, D3, D4 have formed the Half bridge rectifier circuit of rectified action.

Further, described filter unit comprises capacitor C 1, C2, C3, inductance L 1, and described capacitor C 1, C2, C3 and inductance L 1 form filter unit, play EMI filtering, stopping direct current and the effect of raising power factor, the positive pole of the negative pole of described capacitor C 1 and capacitor C 2 is all connected with the other end of load.

The utility model adopts above technical scheme, provide a kind of operating frequency adjustable, be easy to the compact fluorescent lamp drive circuit with various fluorescent tube couplings, each device in this drive circuit comprises identical controller function, to guarantee to be applicable to the CFL of various power brackets, there is application simple, the advantage of supply voltage wide accommodation; In addition, employing external time control model is boosted, and when pressure-increasning state, the employing time is controlled temperature model, from pressure-increasning state to the state of igniting, seamlessly transits, and plays the function of quick and smooth bright light.

Accompanying drawing explanation

Fig. 1 is circuit theory diagrams of the present utility model.

Embodiment

Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.

As shown in Figure 1,

Fig. 1 is an embodiment of the present utility model, and as shown in the figure, a kind of compact fluorescent lamp drive circuit of the utility model, comprises electric main input, chip UBA2213, resistance R 1, R2, capacitor C 1, C2, C3, C4, C5, C7, C8, C9, diode D1, D2, D3, D4, fuse FUSE, inductance L 1, L2, wherein, chip UBA2213 Shi Youenzhi Pu semiconductor company manufactures, and can consult correlation technique data by those skilled in the art and can obtain its physical circuit schematic diagram, and the live wire of electric main input is anodal through fuse FUSE and diode D1, diode D2 negative pole connects, the zero line of electric main input and diode D3 negative pole, diode D4 is anodal to be connected, diode D1, the negative pole of D4 all connects one end of inductance L 1, the positive pole of capacitor C 3, diode D2, the positive pole of D3 all connects the negative pole of capacitor C 3, one end of capacitor C 2, the other end of inductance L 1 connects one end of capacitor C 1, chip UBA2213 the 3rd pin, the other end of capacitor C 1 connects one end of load, and the other end of capacitor C 2 connects one end of load, and the other end of load connects one end of inductance L 2, and the other end of inductance L 2 connects chip UBA2213 the 14th pin, one end of capacitor C 5, one end of capacitor C 6, the two ends of capacitor C 4 connect respectively the two ends of load, and the other end of capacitor C 5 connects chip UBA2213 the 5th pin, and the other end of capacitor C 6 connects chip UBA2213 the 11st pin, and one end of capacitor C 2 connects chip UBA2213 the 4th pin, one end of resistance R 2, chip UBA2213 the 1st pin, chip UBA2213 the 2nd pin, chip UBA2213 the 9th pin, chip UBA2213 the 10th pin, chip UBA2213 the 13rd pin, one end of capacitor C 7, one end of capacitor C 8, one end of capacitor C 9, the other end of resistance R 2 connects chip UBA2213 the 12nd pin, one end of the other end contact resistance R1 of capacitor C 7, chip UBA2213 the 6th pin, the other end of capacitor C 8 connects chip UBA2213 the 7th pin, and the other end of capacitor C 9 connects chip UBA2213 the 8th pin, and the other end of resistance R 1 connects chip UBA2213 the 7th pin.

In foregoing circuit, capacitor C 1, C2, C3 not only play EMI filter action, also play every direct sum simultaneously and improve power factor effect.Fluorescent tube also arranges the defencive function of dying of old age; make electricity-saving lamp when reaching useful life; can not produce large fluctuating current because of filament breaking, fluorescent tube rectifying effect; damage electric ballast to produce unsafe situation such as smolder, on fire; when chip UBA2213 inside detects after abnormal condition of lamp tube; chip UBA2213 cuts off output automatically, reaches the effect of protection ballast.

The compact fluorescent lamp drive circuit the utility model proposes has following characteristics and advantage:

1, the system integration: integrated half-bridge power transistor, integrated bootstrap diode, integrated high voltage power supply; 2, routine: current mode warm-up control pattern, adjustable warm-up time, during non-igniter applications, control the infringement of aura minimal time polarizing electrode igniting, RMS Current Control; 3, quick and smooth bright light: employing external time control model is boosted, and at pressure-increasning state is, the employing time is controlled temperature model, from pressure-increasning state to the state of igniting, seamlessly transits; 4, tube lifetime: the current mode warm-up control that warm-up time is adjustable, the minimum aura time is supported cold start, the power of lamp is not affected by mains voltage variations, the saturated protection of the inductance of lamp between burn period; 5, fail safe: overtemperature protection, capacitive protection, current saturation protection, overpower is controlled, and when lamp tube service life stops, system is closed automatically; 6, application is simple: operating frequency is adjustable, is easy to and various fluorescent tube couplings, and each device comprises identical controller function, to guarantee to be applicable to the compact fluorescent lamp of various power brackets.

Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Claims

1. a compact fluorescent lamp drive circuit, it comprises electric main input, the rectification unit being connected with electric main input, the filter unit being connected with rectification unit output and the unit chip UBA2213 and the peripheral circuit thereof that are connected with filter unit output, compact fluorescent lamp driver element

2. a kind of compact fluorescent lamp drive circuit according to claim 1, it is characterized in that, described rectification unit comprises fuse FUSE and diode D1, D2, D3, D4, and described diode D1, D2, D3, D4 have formed the Half bridge rectifier circuit of rectified action.

3. a kind of compact fluorescent lamp drive circuit according to claim 1, it is characterized in that, described filter unit comprises capacitor C 1, C2, C3, inductance L 1, described capacitor C 1, C2, C3 and inductance L 1 form filter unit, play EMI filtering, stopping direct current and the effect of raising power factor, the positive pole of the negative pole of described capacitor C 1 and capacitor C 2 is all connected with the other end of load.