CN202310254U - Half-bridge inversion single-based startup circuit of 9w-below electronic energy-saving lamp - Google Patents

Abstract

The utility model discloses a half-bridge inversion single-based startup circuit of a 9w-below electronic energy-saving lamp. A 220V power is rectified by diodes D1-D4 and filtered by a capacitor C2; a capacitor C3 is charged by a resistor R1 and a capacitor C4; when the capacitor C3 is charged to be 32V, a directional trigger diode DB3 is switched on and supplies a base pulse to a triode VT2; the triode VT2 works; after the triode VT2 is saturated, a triode VT1 works; the triode VT1 and the triode VT2 are switched on alternately; alternating voltage passes through a startup capacitor C6 and an inductor L; and voltage on the capacitor C6 is applied to a lamp tube, which has the oscillation frequency of 40KHz and adopts pure-rare-earth three-primary-color toner. The half-bridge inversion single-based startup circuit of the 9w-below electronic energy-saving lamp works in a high-frequency state, eliminates a flickering sense of a 50Hz working fluorescent lamp completely and eliminates eye strain after working for a long time under the fluorescent lamp; the fluorescent lamp tube adopts pure-rare-earth three-primary-color toner, which has good color restoration and is close to the color of sunlight; the environmental protection and the eye strain relief are greatly improved; the luminous efficiency is improved; and the energy is saved.

Description

The following electronic energy-saving lamp semi-bridge inversion of 9W list base start-up circuit

Technical field

The utility model relates to the electroporation field, relates in particular to a kind of energy-saving lamp circuit.

Background technology

Fluorescent lamp was used widely in China's industry, commercial lighting from the seventies in last century, was the traditional electrical light source, had also stayed the distinct track of applying.Along with the continuous progress of fluorescent tube production Technology, the caliber of straight tube fluorescent lamp has experienced the progressive process of T-12, T-10, T-8, T-6, T-5, T-4.Before the last century the eighties; The driving power source of fluorescent lamp, promptly ballast is used widely, because the research and development of electric light source field technology comparatively lag behind; In industry, in the commercial lighting, the driving power source that straight tube fluorescent lamp can extensive use has inductance type ballast only.Inductance type ballast also aspect failure rate, life-span, shows outstanding high reliability, and in this stage, every gas discharge electric light source also mostly adopts inductance type ballast as the driving power source.

The electronic ballast extensive use mainly is between last century eight, the nineties, the continuous progress of electronic technology, and power electronic technology reaches its maturity especially; The research and development of electric light source field technology begin to enliven, and accomplish tangible results.Electronic ballast technology maturation, and suitability for industrialized production.Electronic ballast is compared with inductance type ballast, at aspects such as starter lighting characteristic, power consumption, P/C compare, all shows excellent technical characteristic.The typical circuit of electronic ballast is the half-bridge self-oscillating circuit, seems from the circuit form surface, and the components and parts kind is few, quantity is few, and operation principle is simple.Seem that from the production process surface pcb board wiring is simple, as long as welding is correct, need not debug, connect fluorescent tube and just can light by starter.Because electronic ballast, the pcb board wiring is simple, and welding must be correct, carry out strict debugging, and fluorescent tube could be lighted by starter like this, so occurred economizing on electricity not saving the negative effect of money, has increased cost; And traditional electric daylight lamp light color reproducibility is poor, the colour temperature type is few, flickering is arranged, and the operation eyes can produce sense of fatigue under the long-time lamp.

The utility model content

Conditional electronic fluorescent lamp light color reproducibility is poor, the colour temperature type is few in order to overcome, flickering is arranged, and the operation eyes can produce problems such as sense of fatigue under the long-time lamp, and the utility model provides the following electronic energy-saving lamp semi-bridge inversion of a kind of 9W list base start-up circuit.

The utility model for realizing the technical scheme that above-mentioned purpose adopted is: the following electronic energy-saving lamp semi-bridge inversion of 9W list base start-up circuit; After process diode D1-D4 rectification of 220V power supply and capacitor C 2 filtering; Give capacitor C 3 chargings through resistance R 1, capacitor C 4, when being charged to 32V, bidirectional trigger diode DB3 conducting; Bidirectional trigger diode DB3 gives base stage pulse of triode VT2, triode VT2 work; The triode VT1 work of the saturated back of triode VT2, triode VT1 and the conducting of triode VT2 alternation, the voltage of alternation is added to the voltage on the capacitor C 6 on the fluorescent tube with inductance L through starting capacitor C 6.

Frequency of oscillation is 40KHz.

Said fluorescent tube adopts the pure rare earth tricolor powder.

The following electronic energy-saving lamp semi-bridge inversion of the 9W of the utility model list base start-up circuit, frequency of oscillation designs at 40KHZ, works in the high frequency state, thoroughly eliminated 50 hertz working day light modulation flickering, removed the kopiopia sense of operation under the long-time lamp; And fluorescent tube adopts the pure rare earth tricolor powder, and color reductibility is good, approaches the sunlight look, to environmental protection, the degree of fatigue of human eye is all improved widely.

Description of drawings

Fig. 1 is the following electronic energy-saving lamp semi-bridge inversion of the 9W of the utility model list base start-up circuit figure.

Embodiment

The following electronic energy-saving lamp semi-bridge inversion of the 9W of the utility model list base start-up circuit structure is as shown in Figure 1, after process diode D1-D4 rectification of 220V power supply and capacitor C 2 filtering, gives capacitor C 3 chargings through resistance R 1, capacitor C 4; When being charged to 32V, bidirectional trigger diode DB3 conducting, bidirectional trigger diode DB3 gives base stage pulse of triode VT2, triode VT2 work; Because the effect triode VT2 of magnet ring is saturated very soon, the triode VT1 work of the saturated back of triode VT2, triode VT1 and the conducting of triode VT2 alternation; Reached VT1; The higher-order of oscillation about VT2 alternation conducting 40KHZ, the voltage of this alternation produces a very high voltage through starting the series resonance effect of capacitor C 6 inductance L at C6; Be added on the fluorescent tube, tube starting is lighted.

The environment-friendly electronic power saving fluorescent lamps inwall of the utility model scribbles diaphragm and adopts the triple helices filament to increase the service life greatly, can directly replace incandescent bulb, and the life-span is longer, is 8～10 times of incandescent lamp.Electricity-saving lamp work mainly is to heat to tube filament through electric ballast; Greatly when the 1160K temperature; Filament just begins emitting electrons (Gu on filament, being coated with some electronics powder) electron collision ar atmo elastic collision; After the ar atmo collision, obtain energy and clash into mercury atom again after absorbing energy, transition produces ionization; Send the ultraviolet ray of 253.7nm; Ultraviolet ray excited light-emitting phosphor and since during fluorescent lamp operation the temperature of filament about 1160K, lower than the temperature 2200K～2700K of incandescent lamp work; So its life-span is also brought up to (the ordinary incandescent lamp life-span is 1000 hours) more than 8000 hours greatly; Because there is not the such heating effect of current of incandescent lamp in it, the energy conversion efficiency of fluorescent material is also very high, can reach every watt 60 (lm) lumen again.The high 60Lm/w of luminous efficiency, power saving are saved the energy more than 80%.Ordinary incandescent lamp is 15 lumens for every watt, and the Fei Lipu incandescent lamp just can reach every watt 21 lumen.

The environment-friendly electronic electricity-saving lamp color reductibility of the utility model is good, and the fluorescent lamp of halide phosphor and incandescent lamp are difficult to the accurately color of reflection object down, have only and adopt the electricity-saving lamp of three primary colors fluorescent powder that best chromatic rendition effect just can be arranged.And the colour temperature type is abundant, and colour temperature grade commonly used is from 2700K-6400K, and so abundant colour temperature grade is enough to satisfy the illumination needs of each special circumstances of family.For example select for use the winter in the north low color temperature lamp below the 3000K can obtain " warm " effect of incandescent lamp, on the contrary, select for use more than the 5000K high colored lights just very suitable if seek out luicd and elegant, lucid and lively illuminating effect.Abundant colour temperature can be brought comfortable visual effect with excellent chromatic rendition, the more important thing is that electricity-saving lamp works in the high frequency state, thoroughly eliminated 50 hertz working day light modulation flickering, removed the kopiopia sense of operation under the long-time lamp.

Claims (3)

1.9W following electronic energy-saving lamp semi-bridge inversion list base start-up circuit; It is characterized in that: after process diode (D1-D4) rectification of 220V power supply and electric capacity (C2) filtering; Give electric capacity (C3) charging through resistance (R1), electric capacity (C4), when being charged to 32V, bidirectional trigger diode (DB3) conducting; Bidirectional trigger diode (DB3) is given base stage pulse of triode (VT2), triode (VT2) work; Triode (VT2) saturated back triode (VT1) work, triode (VT1) and the conducting of triode (VT2) alternation, the voltage of alternation is added to the voltage on the electric capacity (C6) on the fluorescent tube through starting electric capacity (C6) and inductance (L).

2. the following electronic energy-saving lamp semi-bridge inversion of 9W according to claim 1 list base start-up circuit, it is characterized in that: frequency of oscillation is 40KHz.

3. the following electronic energy-saving lamp semi-bridge inversion of 9W according to claim 1 list base start-up circuit is characterized in that: said fluorescent tube adopts the pure rare earth tricolor powder.

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