CN2593523Y - Harmless discharge lamp power source - Google Patents

Abstract

The utility model relates to an electronic product of a harmless discharge lamp power source, which is characterized in that a ' front-positioned power factor regulator' circuit, a 'PWM pulse width modulator' circuit, and a half-bridge inverter circuit form a multiple power source together; the multiple power source can provide a kind of stable direct current voltage and high frequency square wave voltage; the multiple power source is combined with a matching circuit of a discharge lamp specially designed; the matching circuit of a discharge lamp is a triggering (igniting) and ballasting circuit of a fluorescent lamp (daylight lamp), a high voltage sodium lamp, and a metal halide lamp. The independent multiple power source can drag a discharge lamp or a group of neon lamps connected in series, is of a 'one dragged by one way', and can drag multiple discharge lamps so as to form 'multiple dragged by one way' series products. In the power source of the discharge lamp, the power factor can reach 0.995 or more, the total harmonic amount is less than 5%, and the range of the allowable voltage fluctuation is between +20% and-20%; the power source of the discharge lamp can increase 20% of the light efficiency, and the discharge lamp can run in constant power and thus extend the service life of the discharge lamp. The utility model is a harmless, energy-saving, high-technology and continuously developed electronic product which has no flicker and has light weight.

Description

A kind of nuisanceless discharging lamp power

Affiliated technical field

The utility model belongs to a kind of electronic product, particularly relates to a kind of electronic product of discharging lamp power, is applicable to neon light, fluorescent lamp, high-pressure sodium lamp and metal halide lamp.

Background technology

Fluorescent lamp (fluorescent lamp), high-pressure sodium lamp, metal halide lamp and neon light, its total characteristics are: need high voltage to trigger when lighting, need ballast during operate as normal; Neon light is when operate as normal, and every rice lamp pipe needs near kilovolt high voltage, and the 15 rice lamp pipes of connecting then need ten thousand volts of above voltages, therefore needs transformer.

When above-mentioned these lamps are used at the beginning of invention, all be at 220V, under the 50HZ industrial power, design the transformer of triggering, ballast and transformation, its equipment generally all compares heavy, and power factor is low, and efficient is not high, and bulb life is short.Along with the fast development of electronic technology, the commutation inversion technology appears, and triggering, ballast and transformation are all carried out under high frequency, can be 220V, 50HZ power source conversion new power, its product weight alleviates to some extent, and efficient also increases.Even like this, still there are the defective that power factor is low, harmonic wave is big, bulb service life is short in prior art such as electric ballast product, and especially power factor is low, and harmonic wave causes the public hazards to industrial electrical network greatly.

Summary of the invention

The purpose of this utility model is the defective that overcomes above-mentioned known technology, provides a kind of High Power Factor, harmonic wave total amount little, can make the discharge lamp output-constant operation, and improve greatly its useful life, flicker free, in light weight, non-harmful a kind of discharging lamp powers of using more.

Technical solution of the present utility model is to adopt topping power factor control circuit and PWM pulse-width modulation circuit and half bridge inverter circuit to form an independently multiple power source jointly.The input of its circuit is the industrial network voltage of 220V, 50HZ, exports two groups of voltages: one group is that galvanic current is pressed (voltage is Uo); Another group is that (its amplitude is the high frequency square wave voltage of being exported by c, d two ends

), power output can be accomplished 2kw; Under same total inventive concept, promptly on above-mentioned independently discharge lamp multiple power source basis, with the discharge lamp support circuit, i.e. triggering, ballasting circuit or high frequency transformer make up respectively, make a kind of application of power to multiple discharge lamp.

Above-mentioned discharge lamp support circuit is meant the support circuit of fluorescent lamp, high-pressure sodium lamp and Metal halogen lamp and neon light.Independently the discharge lamp multiple power source can drag a discharge lamp or one group of series connection neon light support circuit, forms the series of products of " one-to-one mode "; Also can drag a plurality ofly, form the series of products of " drags multimode " with a kind of discharge lamp support circuit.The advantage of invention

The utility model has the advantages that: for " one-to-one " product, multiple power source circuit and discharge lamp support circuit, mutual encapsulation is in a housing.For " one drag many " product, discharge lamp support circuit (referring to fluorescent lamp, high-pressure sodium lamp and metal halide lamp) then can be encapsulated in according to the requirement of GB/T-17263 on the standard universal spiral mouth lamp holder; And multiple power source separately plastic packaging be a stand-alone product, to drag above-mentioned a plurality of incorporate discharge lamp.After also can passing through waterproof, protection against the tide, insulation processing for the neon light matching transformer, make one and can be installed in outdoor a kind of separated transformer, a multiple power source can drag a plurality of transformers.Like this, from product structure, no matter be which kind of mode, all can make product structure simplification, integrated, easy for installation, volume is little, is convenient to safeguard, cost descends.

The utility model with prior art ratio, its significant effect mainly is: to 220V, and the 50HZ industrial electrical network, can accomplish power factor reach 〉=0.995, the harmonic wave total amount can be called " nuisanceless discharging lamp power " less than 5%, admissible voltage fluctuation ± 20% raises the efficiency 20%; For the output discharge lamp, the life-span of lamp prolongs greatly, flicker free; It is the electronic product of a kind of environment-friendly and energy-efficient, sustainable development.

Description of drawings

Fig. 1 is circuit working schematic diagram [10], [20] of discharge lamp multiple power source of the present utility model;

Fig. 2 is the tubular type fluorescent lamp support circuit schematic diagram [30] of the utility model " one-to-one ";

Fig. 3 is the U type electricity-saving lamp support circuit schematic diagram [30] of the utility model " one-to-one ";

Fig. 4 is the neon light support circuit schematic diagram [40] of the utility model " one-to-one ";

Fig. 5 is the high-pressure sodium lamp or the metal halide lamp support circuit schematic diagram [50] of the utility model " one-to-one ";

Fig. 6 is the support circuit schematic diagram [60] of the compact metal halide lamp of the utility model " one-to-one ";

Fig. 7 is the utility model " drag many " tubular type daylight lamp circuit block diagram;

Fig. 8 is the utility model " drag many " U type energy-saving lamp circuit block diagram;

Fig. 9 is the circuit block diagram of the utility model " drag many " neon light;

Figure 10 is the circuit block diagram of the utility model " drag many " compact metal halide lamp;

Figure 11 is the circuit block diagram of the utility model " drag many " high-pressure sodium lamp or common metal halide lamp;

Figure 12 is the utility model " one-to-one " product structure schematic diagram;

Figure 13 is the utility model " drag many " product structure schematic diagram;

Figure 14 is the utility model " drag many " neon lamp high-frequency transformer device structure schematic diagram.

Discharge lamp multiple power source circuit of the present utility model is by " topping power Power Factor Controller " circuit and " PWM pulse width modulator " circuit [10] and half bridge inverter circuit [20] two parts formation as shown in Figure 1." topping power Power Factor Controller " circuit and " PWM pulse width modulator " circuit are with integrated circuit die I C ₁, and IC ₂Be core, IC ₁That select for use is MC33262 (or MC34262), IC ₂Select TL494 for use; The working power Ucc of MC33262 is a pin 8, and pin 6 is ground GND, and the size of Ucc is by resistance R ₆And capacitor C ₄And the voltage-stabiliser tube of internal circuit decides; By diode D ₁-D ₄Voltage after the rectification, its waveform is 220V, the pulsating voltage of 50HZ applied voltage half-sinusoid is via resistance R ₅And R ₃Dividing potential drop, from pin 3 input, its instantaneous voltage has just in time reflected the maximum and the zero point of applied voltage; To passing through step-up transformer LB ₁The detection of electric current is by resistance R ₄The information of " electric current reaches peak value " that records is obtained by pin 5; Detection to output voltage U o is via resistance R ₂And R ₁The bleeder circuit of forming obtains the capacitor C that is connected with pin two by pin one ₁It is carried out filtering; At above-mentioned six pins, i.e. working power pin 8,6 and input information pin 3,5 under 1,2 the cooperatively interacting, whenever pin 3 when to detect applied voltage be zero information, will drive field effect transistor T, by pin 7 conductings, LB ₁The electric current of transformer rises, and forms " magnetizing "; When pin 5 records electric current peaking, field effect transistor T turn-offs, LB ₁By " putting magnetic " to diode D ₅Back load and capacitor C ₃Send; And electric current is measured " current over-zero " by pin 4 when reducing to zero, so make the T conducting again by pin 7, so circulation makes LB ₁Constantly " magnetize " and " putting magnetic ".At LB ₁In the electric current that flows through, occur with microsecond level series sawtooth waveforms, and this potline current pulse, its " envelope " just in time with the applied voltage same-phase, the mean value of its electric current also just in time with the applied voltage same-phase, can accomplish that power factor approaches 1, the also corresponding minimizing of input current harmonics.

IC ₂The working power of chip TL494 is mainly by resistance R ₁₂, voltage-stabiliser tube DW, triode To, diode D ₇And capacitor C ₈Form, form " bootstrap type " accessory power supply, cause IC ₂Pin 7, be designed to 12-25 volt; IC ₂Pin two, 13,14,15 is represented with A in the drawings, is 5 volts of reference voltages of TL494, and the B point is then represented IC ₂Pin one, 7,9,10,16, be the ground wire of TL494; By resistance R ₉And capacitor C ₇Form the slow-start circuit; The square wave pulsewidth that potentiometer RW can regulate output by pin 3, and pin 8 and 11 are at pull-up resistor R ₁₀, R ₁₁Effect under, provide the square wave of different frequency by a, b to the next stage circuit at 2, its frequency is by resistance R ₈And capacitor C ₆Decision;

[20] circuit of Fig. 1 is after via circuit [10] rectification, and another mistake becomes the circuit of high frequency square wave voltage, by field effect transistor T ₁And T ₂, capacitor C ₁₀, C ₁₁Form half bridge inverter circuit.The square wave that a is ordered is by isolating transformer LB ₂Remove to drive T ₁, the square wave that b is ordered then directly drives T ₂, like this, field effect transistor T ₁And T ₂Alternate conduction and shutoff, and C point current potential is just So, in amplitude of 2 formation of c, d be Square wave power; Direct voltage Uo also can be as the D.C. regulated power supply foreign work simultaneously.

Thus, by [10] among Fig. 1 and [20] circuit, at input 220V, after the 50HZ voltage, with regard to exportable one group of DC power supply (voltage is Uo), another group is that (amplitude is the HF square-wave power supply

), can be common to various discharge lamps thus.RFI among Fig. 1 is that the radio frequency that improves the circuit quality suppresses circuit.

Fig. 2, Fig. 3 are the tubular type fluorescent lamp and the U type electricity-saving lamp support circuits [30] of the utility model " one-to-one ", are by capacitor C ₁₂, C ₁₃And inductance L ₁Form a series resonant circuit.Power supply is by 2 introducings of the output point c among Fig. 1, d.At the beginning of just having introduced, the fluorescent tube open circuit is by above-mentioned resonant circuit, capacitor C ₁₃On voltage be enough to make lamp to trigger to light; After lighting, light tube electric voltage sharply descends, and circuit enters stable state, at this moment inductance L ₁Play the ballast effect, fluorescent tube is operate as normal then.

Fig. 4 is " one-to-one " neon light support circuit [40], is a high frequency transformer, by primary winding W ₁, high voltage package GYB (comprising secondary coil W2 and high-voltage rectifying bridge GR) and magnetic core DS form.Power supply through high frequency transformer, by 2 outputs of e, f, can drag 15 meters long neon lights by 2 introducings of the c among Fig. 1, d.

Fig. 5 is the support circuit [50] of " one-to-one " high-pressure sodium lamp or metal halide lamp.By resistance R ₁₆, R ₁₇, capacitor C ₁₄, C ₁₅, two triggering diode DB and transformer LB ₃Constitute; Resistance R ₁₆, capacitor C ₁₅, resistance R ₁₇, series connection back is connected with power supply positive and negative electrode two ends.When introducing power supply, capacitor C ₁₅Charge, reach the trigger voltage of two diac DB, during as 150V, the unexpected conducting of DB, C ₁₅LB is passed through in discharge ₃Transformer, high voltage of induction are lighted discharge lamp; After lighting, DB ends, C ₁₅Voltage drives and is bordering on zero on the electric capacity, because R ₁₆=R ₁₇So the N point promptly is equivalent to the mid point of voltage U o among the figure, at this moment, the current potential that d is ordered is because the T in [20] circuit ₁And T ₂Alternate conduction and shutoff are in capacitor C ₁₄Two ends form an amplitude Square wave, and LB ₃Become ballast, the bulb operate as normal.

Fig. 6 is the support circuit [60] of " one-to-one " compact metal halide lamp.By inductance L ₂, capacitor C ₁₆, C ₁₇, resistance R ₁₈, spark discharger HH, transformer LB ₄Form.Introduce high frequency voltage by c, d, initial, inductance L ₂, capacitor C ₁₆, C ₁₇Form resonant circuit, make capacitor C ₁₇The voltage that produces is enough to make spark discharger HH discharge, causes transformer LB ₄Secondary side induce high-tension electricity, discharge lamp is lighted.

Fig. 7, Fig. 8 are tubular type fluorescent lamp and U type electricity-saving lamp " one drag many " circuit block diagrams.On the general-purpose discharge lamp power supply basis of forming in circuit [10] and [20], connect a plurality of support circuits [30], form " one drag many " execution mode at its output.As above-mentioned multiple power source output 2KW power, can drag 50 of 40W fluorescent lamps.

Fig. 9 is neon light " drag a many " circuit block diagram.On the general-purpose discharge lamp power supply basis of forming in circuit [10] and [20], connect a plurality of support circuits [40] at its output and form " one drag many " execution mode.As multiple power source output 2KW power, drag 12 of gas tube sign transformers, promptly about 200 meters neon light tubes.

Figure 10 is compact metal halide lamp " drag a many " circuit block diagram, on the general-purpose discharge lamp power supply basis of forming in circuit [10] and [20], connects a plurality of support circuits [60] at its output, forms " one drag many " execution mode.As above-mentioned multiple power source output 2KW power, can drag 20 of 100W metal halide lamps.

Figure 11 is high-pressure sodium lamp or common metal halide lamp " one drag a many " circuit block diagram.On the general-purpose discharge lamp power supply basis of forming in circuit [10] and [20], connect a plurality of support circuits [50], form " one drag many " execution mode at its output.As above-mentioned multiple power source output 2KW power, can drag 20 of 100W high-pressure sodium lamp or metal halide lamps.

Figure 12 is the utility model " one-to-one " product structure schematic diagram, be with circuit [10] (ZIC part of moduleization wherein, 7 pin one～5 and a, b are arranged), circuit [20] and integrated with circuit [30] or [40], [50], [60], the housing of packing into, draw power output end e, f by housing, be connected with discharge lamp.

Figure 13 is the product structure schematic diagram of " drag many " of the present utility model, be with circuit [10] and [20] are integrated is encapsulated in the housing, support circuit [30], [50] and [60], all can be according to the GB/T-17263 standard-required, be installed on the standard universal spiral mouth lamp holder, becoming one lamp holder, a housing can drag a plurality of integrated lamp caps.

Figure 14 is " one drag many " of the present utility model neon lamp high-frequency transformer device structure schematic diagram, after waterproof, protection against the tide, insulation processing, makes one and can be installed in outdoor separated transformer.

Embodiment

The embodiment of the utility model " one-to-one ", wherein circuit is assembled in the structure as Figure 12 by Fig. 1 and Fig. 5; Circuit diagram among multiple power source such as Fig. 1 [10], [20], selected element is:

Field effect transistor T:TRF-840; T ₁, T ₂: TRF-840

Diode: D ₁～D ₄: IN5408; D ₅: TR108; D ₆: FR107;

D ₇：IN4007；

PNP triode: TO:MJE13005

Voltage-stabiliser tube: DW:24V, 1/2W;

Integrated circuit block: IC ₁: MC33263 (or MC34262); IC ₂: TL494;

Step-up transformer: LB ₁: iron core is EI25; Primary side 200T; With the 0.32mm line, 24mH, secondary side 10T, 0.29 line;

Isolating transformer: LB ₂: 100/65T, 0.20 line, magnetic core: EI19

Electrolytic capacitor: C ₃: 47 ^μ, 450 ^VC ₄, C ₇, C ₈: 100 ^μ, 25 ^VC ₉: 100 ^μ, 25 ^V

CBB electric capacity: C ₁: 0.68 ^μ, 16 ^VC ₂: 22 ^μ, 16 ^VC ₅: 330 ^μ, 630 ^VC ₆: 0.002 ^μ,

25 ^V；C ₁₀：330 ^μ，630 ^V＝C ₁₁：330 ^u，630 ^v；

Metalfilmresistor: 1/4W, R ₁: 10 ^kR ₂: 1.6 ^mR ₃12 ^k, R ₄: 22 ^k, R ₅: 1.3 ^m, R ₆: 100 ^k

R ₈：8.1 ^k；R ₉：100 ^k；R ₁₀＝R ₁₁：2.2 ^k；R ₁₂＝R ₁₄：20 ^Ω；R ₁₃＝R ₁₅：2.2 ^k

1/2 ^w，R ₇：0.1 ^Ω；1 ^w?R ₁₂：86 ^k

Potentiometer: RW:10 ^k,

The selected element of support circuit [50] is: two diacs: DB:SIBAD, 150V; Metalfilmresistor: R ₁₅: 2.2 ^K, 1 ^WR ₁₆=R ₁₇=100 ^KElectrochemical capacitor: C ₁₅: 1 ^μ, 400 ^VCBB electric capacity: C ₁₄: 2.2 ^μ450 ^VStep-up transformer: LB ₃: 80/4T, 0.29 * 2 line, Lo value＞0.6 _MH, magnetic core: EI28.

Claims (7)

1, a kind of nuisanceless discharging lamp power, comprise housing, rectification, inverter circuit, it is characterized in that circuit [10] of being made up of " topping power Power Factor Controller " circuit and " PWM pulse-width modulation " circuit of encapsulation forms a multiple power source jointly with half bridge inverter circuit [20] in the housing, and make up with the discharge lamp support circuit.

2,, it is characterized in that topping power Power Factor Controller circuit is with integrated circuit die I C according to the described nuisanceless discharging lamp power of claim 1 ₁Be core, IC ₁Select MC33262 or MC34262 for use, the Ucc of working power is introduced by pin 8, and pin 6 is ground wire GND, and the Ucc size is by resistance R ₆And capacitor C ₄And the voltage-stabiliser tube of internal circuit decision; Applied voltage is by diode D ₁～D ₄After the rectification, via resistance R ₅And R ₃Dividing potential drop is from pin 3 inputs; The detection of output voltage U o is via resistance R ₂And R ₁The bleeder circuit of forming is obtained the capacitor C that is connected with pin two by pin one ₁It is carried out filtering; Field effect transistor T makes LB by pin 7 turn-on and turn-off ₁Form " magnetizing " and " putting magnetic " LB ₁By putting magnetic to diode D ₅Back load and capacitor C ₃Send.

3,, it is characterized in that " PWM pulse-width modulation " circuit is with integrated circuit die I C according to the described nuisanceless discharging lamp power of claim 1 ₂Be core, IC ₂Select TL494 for use; Working power is by resistance R ₁₂, voltage-stabiliser tube Dwo, triode To, diode D ₇And capacitor C ₈Form, by IC ₂Pin 7 is introduced IC ₂The A point be that pin two, 13,14,15 is IC ₂5 volts of reference voltages, IC ₂The B point be that pin one, 7,9,10,16 is IC ₂Ground wire; Resistance R ₉And capacitor C ₇Form the slow-start circuit; The pulsewidth that potentiometer RW regulates the output square wave by pin 3, pin 8 and 11 is at pull-up resistor R ₁₀, R ₁₁Effect under, provide the different frequency square wave by a, b to the next stage circuit at 2, its frequency is by resistance R ₈And capacitor C ₆Decision.

4,, it is characterized in that half bridge inverter circuit is by field effect transistor T according to the described nuisanceless discharging lamp power of claim 1 ₁And T ₂, capacitor C ₁₀, C ₁₁Form.

5, according to the described nuisanceless discharging lamp power of claim 1, it is characterized in that the discharge lamp support circuit is meant tubular type fluorescent lamp or U type electricity-saving lamp high-pressure sodium lamp or metal halide lamp, the support circuit of compact metal halide lamp and neon light [30], [50], [60], [40].

6,, it is characterized in that the support circuit [30] of tubular type fluorescent lamp or U type electricity-saving lamp is by capacitor C according to the described nuisanceless discharging lamp power of claim 1 ₁₂, C ₁₃Form a series resonant circuit with inductance L, the support circuit of high-pressure sodium lamp or metal halide lamp [50] is by resistance R ₁₆, R ₁₇, capacitor C ₁₄, C ₁₅, two diac DB and transformer LB ₃Constitute; Compact metal halide lamp support circuit [60] is by inductance L ₂, capacitor C ₁₆, C ₁₇, resistance R ₁₈, spark discharger HH and transformer LB ₄Constitute; Neon light support circuit [40] is a high frequency transformer, by secondary coil W ₁High voltage package GYB (comprises secondary coil W ₂With high-voltage rectifying bridge GR) and magnetic core DS composition.

7, according to claim 1,5 described nuisanceless discharging lamp powers, it is characterized in that the independent multiple power source that forms by circuit [10] and [20], can with a support circuit [30], [40], [50] or [60] combination, form " one-to-one " mode; Can with a plurality of support circuits [30], [40], [50] or [60] combination, form " one drag many " mode.

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