CN202818744U

CN202818744U - Energy-saving electronic ballast applied to ceramic metal halide lamp

Info

Publication number: CN202818744U
Application number: CN2012204732679U
Authority: CN
Inventors: 张正军
Original assignee: HUNAN SANJIN ENERGY-SAVING ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
Current assignee: HUNAN SANJIN ENERGY-SAVING ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
Priority date: 2012-09-17
Filing date: 2012-09-17
Publication date: 2013-03-20
Anticipated expiration: 2022-09-17

Abstract

The utility model discloses an energy-saving electronic ballast applied to a ceramic metal halide lamp. The energy-saving electronic ballast applied to a ceramic metal halide lamp comprises a rectifier and filter circuit, an EMI filter circuit, a power correction circuit, a drive circuit, a starting circuit, an over-current protection circuit and a resonant circuit. By using the starting circuit, the flicker of the starting moment of the ceramic metal halide lamp is avoided, and the service life of the ceramic metal halide lamp is prolonged. The electronic ballast produces less heat, thus the potential risk which is caused by the self heating of the traditional inductance type ballast is avoided. The electronic ballast provided by the utility model adopts constant power output, which is the greatest characteristic of energy-saving. Because the power factor can reach above 0.99, the utilization rate of electric energy is greatly improved. When the voltage of mains supply rises, the brightness of the ceramic metal halide lamp is always consistent, thus the effect of energy saving is realized, and the service life of the ceramic metal halide lamp is prolonged. The electronic ballast has the advantages of small volume, light weight and convenient installation, and is an energy-saving product of a new generation.

Description

A kind of energy-saving electronic ballast for ceramic gold-halogen lamp

Technical field

The utility model relates to the ballast in the electronic product, specifically a kind of ceramic gold-halogen lamp energy-saving electronic ballast.

Background technology

Road lighting lamp is the light fixture of the use of urban road, along with current road lighting demand for development, will be to efficient, energy-conservation, low-carbon (LC), the development of environmental protection aspect, and the energy that road lighting consumes every year, in whole energy resource consumption, occupying very large ratio, how to make the road lighting product meet the main trend of Overseas Development, is all scientific and technical personnel's of lighting field research direction.The energy resource consumption of present bulb too can, for energy-conservation, adopt at present a kind of LED illuminating lamp, but the warm light spectrum of LED illuminating lamp is narrower, ratio is not easy to find barrier in the misty rain sky, penetrability is not strong.What road lighting was used on the market all is ceramic gold-halogen lamp, at present, what ceramic gold-halogen lamp adopted is inductance type ballast, because what the inductance of inductance type electric ballast used is the copper paint envelope curve, has wasted a large amount of copper, on the other hand, the power factor of inductance type ballast often is lower than 0.5, most electric energy scatters and disappears with the form of heat, has not only wasted a large amount of electric energy, and himself can generate heat and exist potential safety hazard.Simultaneously, because the inductance type electric ballast is to adopt the LC mode of oscillation to start, during startup, lantern festival is glimmered, and not only itself is fragile, and affects the useful life of light fixture.And when voltage raise, the power of inductance type ballast increased thereupon, and not only waste is electric, and affected the life-span of ceramic gold-halogen lamp, and when voltage was low, inductance type ballast possibly can't trigger and light ceramic gold-halogen lamp.

The utility model content

Technical problem to be solved in the utility model provides a kind of utilance that can improve electric energy, can increase the service life again, and the little lightweight energy-saving electronic ballast for ceramic gold-halogen lamp of volume.

In order to solve the problems of the technologies described above, the energy-saving electronic ballast that is used for ceramic gold-halogen lamp that the utility model provides, by EMI filter circuit, current rectifying and wave filtering circuit, drive circuit, power factor correction circuit, start-up circuit, current foldback circuit and resonance the electric circuit constitute:

Described EMI filter circuit:

Civil power 220V AC live wire is by protective tube F, be connected to an end of capacitor C 1, the other end of capacitor C 1 connects with the zero line of civil power, through common mode inductance T1 two ends, other two of common mode inductance T1 is connected to capacitor C 2 two ends, be connected to the end of capacitor C 3 and C4, the other end of C3 and C4 is linked together, and is connected to the contact of the earth again.

Described current rectifying and wave filtering circuit:

Civil power links through the anodal end with capacitor C 5 of rectifier bridge D1 through behind the EMI filter circuit, again behind transformer T2, again through diode D2 to capacitor C 11, wherein the other end of the negative pole of rectifier bridge D and capacitor C 5 links to thermally.

Described drive circuit:

Connect over the ground through the secondary end of current rectifying and wave filtering circuit by transformer T2, other end connecting resistance R15, the anode of another terminating diode D6 of resistance R 15, the negative electrode of D6 connects the anode of diode D9, the negative electrode of diode D9 connects with the positive pole of capacitor C 22, be connected to 1 pin of the U1 of integrated package, the negative pole of capacitor C 22 with link, 2 pin of integrated package U1 are connected with the positive pole of capacitor C 23, the minus earth of C23,3 pin of resistance R 43-termination integrated package U1, another termination R44 of R43 and with the positive pole of capacitor C 23, the anode of diode D10 links, the other end ground connection of R44, the negative electrode of diode D10 and voltage-stabiliser tube ZD2, the positive pole of capacitor C 24, integrated package U4 sunlight 1 pin links, the negative pole of the other end of voltage-stabiliser tube and capacitor C 24 links and is connected to ground, and 2 pin of integrated package are connection electrical resistance R42 over the ground, and 3 pin of integrated package U4 connect capacitor C 25 over the ground, the 4 pin ground connection of integrated package U4,6 pin and 8 pin of integrated package U4 connect capacitor C 26, and 5 pin of integrated package U4 connect the grid of Q3, and 7 pin of integrated package connect the grid of Q2.

Described circuit of power factor correction:

Resistance R 1, R2, after the R3 series connection, the end of R1 and the positive pole of capacitor filtering link, the other end of resistance R 3 connects with the ground of capacitor C 5, the positive pole of capacitor C 5 connects with an end of the armature winding of transformer T2, the other end of the armature winding of transformer T2 connects with the drain electrode of field effect transistor oi, 2 pin of integrated package U2 connect capacitor C 7 over the ground, the 3 pin connecting resistance R3 of integrated package U2 and the interface of capacitor C 6,4 pin of integrated package U2 connect capacitor C 8 over the ground, the end of 5 pin connecting resistance R5 of integrated package, one end of the secondary winding transformer of the other end of resistance R 5 and transformer T2 links, integrated package 6 pin ground connection, the end of integrated package 7 pin connecting resistance R6, the grid of another termination oi of R6,8 pin of integrated package connect and meet over the ground voltage-stabiliser tube ZD3, capacitor C 10, C9, connect the negative electrode of diode D4, the end of the anode connecting resistance R4 of D4, resistance R 4 connects the positive pole of rectifier bridge, the drain electrode of field effect transistor oi connects the anode of diode D2, the negative electrode of D2 connects the positive pole of capacitor C 11, the minus earth of C11, the positive level of one termination capacitor C11 of resistance R 13, the other end connecting resistance R12 of R13, another termination R10 of resistance R 12, the other end ground connection of R10, one terminating resistor R12 of resistance R 11 and the interface of R10, another termination capacitor C 12 of resistance R 11, the collector electrode of triode Q4, the grounded emitter of the other end of capacitor C 12 and triode Q4

Described start-up circuit:

Start-up circuit connects capacitor C 20 over the ground by the I pin of integrated package U3, the anode of another terminating diode D17 of 1 pin of U3, one end of resistance R 27,8 pin of another termination U3 of the negative electrode of diode D17 and resistance R 27,2 of U3,3 pin link, the 4 pin connecting resistance R16 of U3 and the point of contact of resistance R 18,5 pin and the capacitor C 19 of another termination U3 of resistance R 18, capacitor C 19 other end ground connection, the end of the 6 pin connecting resistance R22 of U3, another termination R21 of R22 and the drain electrode of field effect transistor Q6, another termination R21 of resistance R 21, the other end ground connection of R21, the 7 pin ground connection of U3,10 pin of U3 connect the negative electrode of diode D8, the anode of D8 connects 5 pin of U3,11 pin of U3 and 14 pin connecting resistance R29,13 pin of U3 connect capacitor C 18 over the ground, 14 pin of U3 connect capacitor C 21 over the ground, voltage-stabiliser tube ZD1,14 pin of U3 and 13 pin connecting resistance R30, resistance R 16 connects the base stage of triode os, and os has an end of collector connecting relay drive coil, the other end of relay connects capacitor C 31 over the ground, connecting resistance R40, the negative electrode of another terminating diode D15 of R40, the anode of diode D15 connects 8 pin of integrated package U2.

Described current foldback circuit:

One end ground connection of electric current induction coil, other end connecting resistance R41, connect the anode of diode D7, the negative electrode connecting resistance R28 of D7 and the tie point of resistance R 26, the negative electrode that capacitor C 16 is write diode D7 connects, 9 pin of another termination U3 of resistance R 28, one terminating resistor R25 of resistance R 26, capacitor C 17, the other end ground connection of resistance R 25, the other end ground connection of capacitor C 17, the base stage of resistance R 23-termination triode Q8, the source electrode of another termination field effect transistor Q6, the grounded emitter of Q8, the base stage of collector electrode connecting resistance R24 and triode Q9, the emitter of another termination triode Q9 of resistance, the emitter of triode Q9 connects 8 pin of integrated package U2.

Described resonant circuit:

The drain electrode of field effect transistor Q2 connects the positive pole of capacitor C 11, source electrode connects an end of capacitor C 28, one end of the armature winding of another termination transformer T3 of C28, another termination ceramic gold-halogen lamp Lamp of transformer T3, an end of capacitor C 29, the other end ground connection of Lamp, the other end ground connection of capacitor C 29, the drain electrode of field effect transistor Q3 connects the source electrode of field effect transistor Q2, be connected to 6 pin of integrated package U4, connect over the ground capacitor C 27.

Adopt the energy-saving electronic ballast that is used for ceramic gold-halogen lamp of technique scheme, the advantage and the effect that have are as follows:

1, this electric ballast has adopted constant power output, is energy-conservation maximum characteristics.

2, because power factor reaches more than 0.99, improved widely the utilance of electric energy.

3, adopt start-up circuit, avoided the flicker of ceramic gold-halogen lamp startup moment, increased the life-span of ceramic gold-halogen lamp.

4, this electric ballast heating itself is few, has avoided traditional inductance type ballast because the beautiful potential safety hazard of bringing of heating itself.

5, when line voltage raises, the brightness of ceramic gold-halogen lamp remains and has unanimously not only reached energy-conservation effect, and increased the life-span of ceramic gold-halogen lamp.

6, volume is little, and is lightweight, and easy for installation is the energy-conserving product of a new generation.

In sum, the utility model is a kind of employing constant power output, can improve the utilance of electric energy, can increase the service life again, and the little lightweight energy-saving electronic ballast for ceramic gold-halogen lamp of volume.

Description of drawings

Fig. 1 is circuit structure view of the present utility model.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Referring to Fig. 1, the energy-saving electronic ballast that is used for ceramic gold-halogen lamp that the utility model provides is comprised of EMI filter circuit, current rectifying and wave filtering circuit, drive circuit, power factor correction circuit, start-up circuit, current foldback circuit, resonant circuit:

1) EM I filter circuit part: after the civil power 220V input, order is through capacitor C 1, common mode inductance T1, capacitor C 2 filtering differential mode interference, with C4 the common mode disturbances of civil power has been carried out filtering through capacitor C 3 again, reduced the interference of being introduced by civil power, this ballast power factor is improved.

2) rectifying and wave-filtering part: this part is comprised of single-phase full bridge D1, capacitor C 5, diode D2, capacitor C 11, behind the civil power process EMI filter circuit, after the rectifier bridge rectification, C5 carries out a filtering, behind capability correction transformer T2, again D2 rectification C11 filtering, the further high fdrequency component of filtering electrical network.

3) drive circuit: this part is by integrated package U1, U4, resistance R 42, R43, R44, and capacitor C 22, C23, C24, C25, C26, voltage-stabiliser tube ZD2, diode D10, D11, D12, D13 form.Behind the rectifying and wave-filtering; from the transformer secondary output of capability correction obtain voltage after U1 carries out three-terminal voltage-stabilizing through the ZD2 voltage stabilizing, C24 filtering is that special use drives integrated package U4 power supply; make the supply power voltage of integrated package U4 remain stable; simultaneously, diode D13 rectification, C26 filtering; make integrated package U4 produce the driving pulse of certain frequency; diode D12, D13 can filtering integrated package U4 moment the spike that produces, protection power tube Q2, Q3 make power tube and do not damage because drive spike.

4) power factor correction circuit: power factor correction circuit is by integrated package U2, capability correction transformer T2, voltage-stabiliser tube ZD3, resistance R 1, R2, R3, R4, R5, R6, R7, R8, R10, R11, R12, R13, capacitor C 6, C7, C8, C10, C12, C11, diode D4, D2, triode Q4 forms, when line voltage raise, the secondary voltage of transformer T1 raise, through diode D2 rectification, capacitor C 11 filtering, the voltage that resistance R 10 is divided has also just raise, at this moment, and triode Q4 conducting, resistance R 11 is equivalent in parallel with R10, the Voltage Feedback that is divided of R10 is to the first pin of integrated package U2, thereby guarantees the 400V that is stabilized in of D2 rectification C11 filtering voltage, prepares for back semibridge system series resonance provides power supply.

5) start-up circuit: soft starting circuit is by integrated package U3, by capacitor C 14, C18, C19, C20, C21, C22, resistance R 16, R17, R18, R19, R21, R22, R27, R29, R30, R31, R32, voltage-stabiliser tube ZD1, diode D3, D17, formed soft starting circuit, through resistance R 31 current limlitings, after the ZD1 voltage stabilizing, C11 is filtered into integrated package U3 that stable voltage is provided, in the process of C20 charging, when the 1 pin voltage of U3 reaches certain value, drive triode Q5 through R16, drive the triggering part relay J and trigger ceramic gold-halogen lamp.

6) current foldback circuit: this part is by current transformer B3; resistance R 23; R24; R41; R25; R26; R28; integrated package U3, capacitor C 17, diode D7; D8; field effect transistor Q6; triode Q8; Q9 is when ceramic gold-halogen lamp is worked, if when overcurrent occurs; current transformer B3 feedback voltage increases greatly; make the D7 rectification, through C16 filtering, resistance R 25; R26 voltage raises; make the D8 conducting; at this moment, the 6th pin output low level of U3, the voltage of resistance R 20 is low level; triode Q8 cut-off; resistance R 24 forms biasing circuit with triode Q9, the Q9 conducting, and Q9 directly drags down the supply power voltage of integrated package U2 over the ground; U2 is quit work, thereby play a protective role.

7) resonant circuit: this main circuit will be by field effect transistor Q2, Q3, capacitor C 28, C29, transformer T3 form, behind the relay transient switching, produce instantaneous pressure at transformer T3 and capacitor C 29 ends, thereby light ceramic gold-halogen lamp, this moment, integrated package U4 drove field effect transistor Q2, Q3, made the resonant circuit work that is comprised of C28 and transformer T3, ceramic gold-halogen lamp Lamp work.

Claims

1. energy-saving electronic ballast that is used for ceramic gold-halogen lamp by EM I filter circuit, current rectifying and wave filtering circuit, drive circuit, power factor correction circuit, start-up circuit, current foldback circuit and resonance the electric circuit constitute, is characterized in that:

Described EMI filter circuit:

Civil power 220V AC live wire is by protective tube F, be connected to an end of capacitor C 1, the other end of capacitor C 1 connects with the zero line of civil power, through common mode inductance T1 two ends, other two of common mode inductance T1 is connected to capacitor C 2 two ends, be connected to the end of capacitor C 3 and C4, the other end of C3 and C4 is linked together, and is connected to the contact of the earth again;

Described current rectifying and wave filtering circuit:

Civil power links through the anodal end with capacitor C 5 of rectifier bridge D1 through behind the EMI filter circuit, again behind transformer T2, again through diode D2 to capacitor C 11, wherein the other end of the negative pole of rectifier bridge D and capacitor C 5 links to thermally;

Described drive circuit:

Connect over the ground through the secondary end of current rectifying and wave filtering circuit by transformer T2, other end connecting resistance R15, the anode of another terminating diode D6 of resistance R 15, the negative electrode of D6 connects the anode of diode D9, the negative electrode of diode D9 connects with the positive pole of capacitor C 22, be connected to 1 pin of the U1 of integrated package, the negative pole of capacitor C 22 with link, 2 pin of integrated package U1 are connected with the positive pole of capacitor C 23, the minus earth of C23,3 pin of resistance R 43 1 termination integrated package U1, another termination R44 of R43 and with the positive pole of capacitor C 23, the anode of diode D10 links, the other end ground connection of R44, the negative electrode of diode D10 and voltage-stabiliser tube ZD2, the positive pole of capacitor C 24,1 pin of integrated package U4 links, the negative pole of the other end of voltage-stabiliser tube and capacitor C 24 links and is connected to ground, and 2 pin of integrated package are connection electrical resistance R42 over the ground, and 3 pin of integrated package U4 connect capacitor C 25 over the ground, the 4 pin ground connection of integrated package U4,6 pin and 8 pin of integrated package U4 connect capacitor C 26, and 5 pin of integrated package U4 connect the grid of Q3, and 7 pin of integrated package connect the grid of Q2;

Described circuit of power factor correction:

Resistance R 1, R2, after the R3 series connection, the end of R1 and the positive pole of capacitor filtering link, the other end of resistance R 3 connects with the ground of capacitor C 5, the positive pole of capacitor C 5 connects with an end of the armature winding of transformer T2, the other end of the armature winding of transformer T2 connects with the drain electrode of field effect transistor Q1,2 pin of integrated package U2 connect capacitor C 7 over the ground, the 3 pin connecting resistance R3 of integrated package U2 and the interface of capacitor C 6,4 pin of integrated package U2 connect capacitor C 8 over the ground, the end of 5 pin connecting resistance R5 of integrated package, one end of the secondary winding transformer of the other end of resistance R 5 and transformer T2 links, integrated package 6 pin ground connection, the end of integrated package 7 pin connecting resistance R6, the grid of another termination Q1 of R6,8 pin of integrated package connect and meet over the ground voltage-stabiliser tube ZD3, capacitor C 10, C9, connect the negative electrode of diode D4, the end of the anode connecting resistance R4 of D4, resistance R 4 connects the positive pole of rectifier bridge, the drain electrode of field effect transistor Q1 connects the anode of diode D2, the negative electrode of D2 connects the positive pole of capacitor C 11, the minus earth of C11, the positive level of one termination capacitor C11 of resistance R 13, the other end connecting resistance R12 of R13, another termination R10 of resistance R 12, the other end ground connection of R10, a terminating resistor R12 of resistance R 11 and the interface of R10, another termination capacitor C 12 of resistance R 11, the collector electrode of triode Q4, the grounded emitter of the other end of capacitor C 12 and triode Q4;

Described start-up circuit:

Start-up circuit connects capacitor C 20 over the ground by the I pin of integrated package U3, the anode of another terminating diode D17 of 1 pin of U3, one end of resistance R 27,8 pin of another termination U3 of the negative electrode of diode D17 and resistance R 27,2 of U3,3 pin link, the 4 pin connecting resistance R16 of U3 and the point of contact of resistance R 18,5 pin and the capacitor C 19 of another termination U3 of resistance R 18, capacitor C 19 other end ground connection, the end of the 6 pin connecting resistance R22 of U3, another termination R21 of R22 and the drain electrode of field effect transistor Q6, another termination R21 of resistance R 21, the other end ground connection of R21, the 7 pin ground connection of U3,10 pin of U3 connect the negative electrode of diode D8, the anode of D8 connects 5 pin of U3,11 pin of U3 and 14 pin connecting resistance R29,13 pin of U3 connect capacitor C 18 over the ground, 14 pin of U3 connect capacitor C 21 over the ground, voltage-stabiliser tube ZD1,14 pin of U3 and 13 pin connecting resistance R30, resistance R 16 connects the base stage of triode Q5, and Q5 has an end of collector connecting relay drive coil, the other end of relay connects capacitor C 31 over the ground, connecting resistance R40, the negative electrode of another terminating diode D15 of R40, the anode of diode D15 connects 8 pin of integrated package U2.

2. the energy-saving electronic ballast for ceramic gold-halogen lamp according to claim 1 is characterized in that: described current foldback circuit:

One end ground connection of electric current induction coil, other end connecting resistance R41, connect the anode of diode D7, the negative electrode connecting resistance R28 of D7 and the tie point of resistance R 26, capacitor C 16 is connected with the negative electrode of diode D7,9 pin of another termination U3 of resistance R 28, one terminating resistor R25 of resistance R 26, capacitor C 17, the other end ground connection of resistance R 25, the other end ground connection of capacitor C 17, the base stage of resistance R 23 1 termination triode Q8, the source electrode of another termination field effect transistor Q6, the grounded emitter of Q8, the base stage of collector electrode connecting resistance R24 and triode Q9, the emitter of another termination triode Q9 of resistance, the emitter of triode Q9 connects 8 pin of integrated package U2.

3. the energy-saving electronic ballast for ceramic gold-halogen lamp according to claim 1 and 2 is characterized in that: described resonant circuit: