CN2201765Y - Dual output power source converter of fluorescent lamp - Google Patents

Abstract

The utility model relates to the design of a dual output power source converter of a fluorescent lamp tube, which comprises a bridge rectifier or a fourfold-voltage circuit which is composed of a diode and a capacitor and is provided with an output end of direct current and an output end of alternating current. The two output ends of the power source converter can be simultaneously connected with a fluorescent lamp tube to work; the utility model has the advantages that the dual output power source converter of a fluorescent lamp tube is provided with a function of preheating for starting; the defect that the early fluorescent lamp tube is blackened is overcome, the service life of the fluorescent lamp tube is prolonged; the utilization ratio of electrical energy is improved.

Description

Dual output power source converter of fluorescent lamp

The utility model is the invention about a kind of dual output end fluorescent lamp power supply converter.

Existing fluorescent lamp is by using starter, inductance type ballast work, thereby energy consumption height, power factor are low, and versatility is poor, though there are some electric ballasts to occur on the market, but most poor reliability, and have only an output, circuit complexity, fluorescent tube weak point in useful life again.

The purpose of this utility model provides a kind of AC and DC dual output end fluorescent lamp power supply converter that has, and it has the advantage that energy-conservation, circuit is simple and can mix use with incandescent lamp.

The circuit of dual output end fluorescent lamp power supply converter described in the utility model sees shown in the accompanying drawing that it is made of diode and electric capacity original paper.

Among Fig. 1, diode D1～D4 forms bridge circuit, and dc output end 1 is drawn from diode D1 and D3 positive pole, D2 and D4 negative pole respectively; Ac output end 2 one ends connect end altogether from diode D3 negative pole and D4 positive pole and draw, and the other end directly connects or is connected to power output end through a capacitor C 5 through a selector switch K1.

Among Fig. 2, diode D1～D4 forms four voltage-multiplying circuits, and diode D1 and D3, D2 are with each is with capacitor C 3, C4 and connect again after D4 is connected in series, and what be connected to D1 and D3, D2 and D4 after capacitor C 1, the C2 serial connection more respectively connects end altogether; Diode D3 and capacitor C 3 connect the dc output end 1 that connects the common composition of end supply convertor altogether of end, diode D4 and C4 altogether; Capacitor C 1 connects end altogether and directly is connected through a selector switch K1 or is connected to the ac output end 2 that power supply is formed supply convertor jointly through capacitor C 5 with C2's.

Among Fig. 3, on the basis of Fig. 2, on capacitor C 1, C2, can respectively and meet diode D5, D6.

The utlity model has that circuit is simple, energy-conservation, do not have stroboscopic, noiseless, fluorescent tube long service life during fluorescent lamp operation and have filament to give heat effect, be difficult for causing the phenomenon of fluorescent tube two ends blackout.

Accompanying drawing has been described embodiment of the present utility model:

Fig. 1 is diode bridge dual output end fluorescent lamp power supply converter circuit figure of the present utility model,

To be that four multiplication of voltages of the present utility model are two go out to hold fluorescent lamp power supply converter circuit figure to Fig. 2,

Fig. 3 is the circuit diagram that increases diode D5, D6 on Fig. 2 basis.

In the above-mentioned embodiment circuit diagram shown in the drawings of the utility model, diode adopts 1N4000 series diode, capacitance C1=C2, C3=C4, and each capacitor C 1～C5 all withstand voltage be 400V, K1 is a single-pole double-throw switch (SPDT); Among the embodiment, when selecting K switch 1 directly to join with power input, direct current 1, exchange 2 outputs and can insert fluorescent tube respectively, wherein dc output end 1 can be connected in series the fluorescent tube of 4 40W of as many as owing to the voltage height; As only using dc output end, can be with ac output end 2 short circuits, the at this moment available fluorescent lamp of dc output end 1 is connected in series use with incandescent lamp.As selector switch K1 being connect electric capacity 5 one ends, at this moment dc output end 1 can connect the miniature bulb current stabilization, and ac output end 2 still can be lighted fluorescent tube.

Claims (3)

1, a kind of dual output end fluorescent lamp power supply converter is made of diode, electric capacity, it is characterized in that diode D1～D4 forms bridge circuit, and dc output end 1 is drawn from diode D1 and D3 positive pole, D2 and D4 negative pole respectively; Ac output end 2 one ends connect end altogether from diode D3 negative pole and D4 positive pole and draw, and the other end directly connects or is connected to power output end through a capacitor C 5 through a selector switch K1.

2, a kind of dual output end fluorescent lamp power supply converter, constitute by diode, electric capacity, it is characterized in that diode D1～D4 forms four voltage-multiplying circuits, diode D1 and D3, D2 is with each is with capacitor C 3, C4 and connect again after D4 is connected in series, and what be connected to diode D1 and D3, D2 and D4 after capacitor C 1, the C2 serial connection more respectively connects end altogether; Diode D3 and capacitor C 3 connect end altogether, diode D4 and capacitor C 4 connect the common dc output end of forming supply convertor of end altogether; Capacitor C 1, C2 connect altogether and hold the ac output end that directly is connected or forms jointly through the selector switch K1 that capacitor C 5 connects the power supply parallel operation with power input.

3, supply convertor as claimed in claim 2, it is characterized in that described capacitor C 1, C2 can be more respectively and meet diode D5, D6.