CN202310253U - Half-bridge inversion single-based startup circuit of 13-45w electronic energy-saving lamp - Google Patents

Abstract

The utility model discloses a half-bridge inversion single-based startup circuit of a 13-45w electronic energy-saving lamp. A 220V power is rectified by diodes D1-D4, filtered by a capacitor C2 and filtered by an EMI (electromagnetic interference) circuit consisting of an inductor L1 and a capacitor C1; a resistor R1 and a capacitor C3 drive a triode VT2; 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 C7 and an inductor L2; and voltage on the capacitor C7 is applied to a lamp tube. The half-bridge inversion single-based startup circuit of the 13-45w electronic energy-saving lamp works in a high-frequency state, eliminates a flickering sense of a 50Hz working fluorescent lamp, eliminates eye strain after working for a long time under the fluorescent lamp, and improves the stability; a fluorescent lamp tube adopts a 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

13W-45W electronic energy-saving lamp semi-bridge inversion 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; 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, and reliability is low.

The utility model content

For overcome conditional electronic fluorescent lamp light color reproducibility poor, flickering arranged, the operation eyes can produce problems such as sense of fatigue, reliability are low under the long-time lamp, the utility model provides a kind of 13W-45W electronic energy-saving lamp semi-bridge inversion list base start-up circuit.

The utility model for realizing the technical scheme that above-mentioned purpose adopted is: 13W-45W electronic energy-saving lamp semi-bridge inversion list base start-up circuit; After process diode D1-D4 rectification of 220V power supply and capacitor C 2 filtering; Through the EMI circuit filtering of inductance L 1 with capacitor C 1 composition; Drive triode VT2 through resistance R 1, capacitor C 3 then; 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 7 on the fluorescent tube with inductance L 2 through starting capacitor C 7.

Be provided with diode D5 and resistance R 5 between the base stage of said triode VT1 and the emitter, be provided with diode D6 and resistance R 6 between the base stage of said triode VT2 and the emitter.

The base stage of said triode VT1 connects capacitor C 4 and resistance R 4, and the base stage of said triode VT2 connects diode capacitance C5 and resistance R 3.

Said fluorescent tube adopts the pure rare earth tricolor powder.

The 13W-45W electronic energy-saving lamp semi-bridge inversion list base start-up circuit of the utility model works in the high frequency state, eliminated 50 hertz working day light modulation flickering, removed the kopiopia sense of operation under the long-time lamp, strengthened reliability; 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, has improved light efficiency, has saved the energy.

Description of drawings

Fig. 1 is the 13W-45W electronic energy-saving lamp semi-bridge inversion list base start-up circuit figure of the utility model.

Embodiment

The 13W-45W electronic energy-saving lamp semi-bridge inversion list base start-up circuit structure of the utility model is as shown in Figure 1; After process diode D1-D4 rectification of 220V power supply and capacitor C 2 filtering; Through the EMI circuit filtering that inductance L 1 and capacitor C 1 are formed, the pulse signal of this circuit disturbs other equipment.Drive triode VT2 through resistance R 1, capacitor C 3 then, because the effect of magnet ring makes triode VT2 saturated very soon, triode VT1 work, triode VT1, VT2 form the higher-order of oscillation of alternation like this, and frequency reaches about 40KHZ.The voltage of this alternation has produced a very high voltage through starting the series resonance of capacitor C 7, inductance L 2 on C6, be added on the fluorescent tube, and tube starting is lighted.In order to make the better reliability of triode work, parallelly connected D5, R5, D6, R6 protect triode between the base stage of triode VT1, VT2 and emitter.The base stage of triode VT1 connects capacitor C 4 and resistance R 4, and the base stage of said triode VT2 connects diode capacitance C5 and resistance R 3, capacitor C 4, C5 give reverse current that VT1, VT2 provide back bias voltage to the quick conducting of triode become by the time, the minimizing loss.But this circuit requires the higher reliability that could guarantee circuit to C4, C5.Fluorescent tube adopts the rare-earth trichromatic powder, approaches the sunlight look, to environmental protection, the degree of fatigue of human eye is all improved greatly, adopts the rare-earth trichromatic powder to improve light efficiency, has saved the energy.

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 (4)

1.13W-45W 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; EMI circuit filtering through inductance (L1) and electric capacity (C1) composition; Pass through resistance (R1), electric capacity (C3) driving triode (VT2) then; 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 (C7) on the fluorescent tube through starting electric capacity (C7) and inductance (L2).

2. 13W-45W electronic energy-saving lamp semi-bridge inversion list base start-up circuit according to claim 1; It is characterized in that: be provided with diode D5 and resistance R 5 between the base stage of said triode (VT1) and the emitter, be provided with diode D6 and resistance R 6 between the base stage of said triode (VT2) and the emitter.

3. 13W-45W electronic energy-saving lamp semi-bridge inversion list base start-up circuit according to claim 1; It is characterized in that:: the base stage of said triode (VT1) connects capacitor C 4 and resistance R 4, and the base stage of said triode (VT2) connects diode capacitance C5 and resistance R 3.

4. 13W-45W electronic energy-saving lamp semi-bridge inversion list base start-up circuit according to claim 1 is characterized in that: said fluorescent tube adopts the pure rare earth tricolor powder.

Images