CN206181426U - Electronic energy -saving lamp starting circuit - Google Patents

Abstract

The utility model discloses an electronic energy -saving lamp starting circuit, mainly by transformer T, diode rectifier U, triode VT1, triode VT2, polarity electric capacity C3, inductance L2 to and the constitutions such as polarity electric capacity C4 that the negative pole is connected with transformer T secondary inductance coil L4's non - end of the same name behind inductance L5, collecting electrode anodal and triode VT1 is connected. The utility model discloses can carry out twice filtering to input voltage, can effectually carry out fine suppression to the harmonic in the voltage to can adjust the voltage and the electric current of output, make output voltage and electric current more stable, more steady, thereby the utility model discloses can be effectual ensure the stability of LED lamp luminance when lighting, the fine requirement of having satisfied people, fine extension the life of LED lamp.

Description

A kind of electronic energy-saving lamp start-up circuit

Technical field

The utility model relates to a kind of start-up circuit, is a kind of electronic energy-saving lamp start-up circuit specifically.

Background technology

Electronic energy-saving lamp as novel energy-conserving light source, the features such as with its environmental protection, energy-conservation, life-span length, small volume, by people Extensively receive and adopt, LED is then a kind of electricity-saving lamp for enjoying people to favor in electronic energy-saving lamp.LED is a kind of special Property sensitive semiconductor device, and with negative temperature characteristic, therefore in application process, LED start-up circuit is for promoting LED Lamp plays considerable effect in stable working condition and service life.However, existing LED start-up circuit is to defeated The harmonic inhibition capability entered in voltage is poor, and existing LED start-up circuit also has that output is unstable, There is flicker in brightness when causing LED to be lit, so as to have a strong impact on the life of people and the service life of LED.

Therefore it provides one kind can be improved to harmonic inhibition capability, the LED of the stable voltage and current of output is can ensure that again Start-up circuit is the task of top priority.

Utility model content

The purpose of this utility model is to overcome existing LED start-up circuit to the harmonic inhibition capability in input voltage It is poor, and the unstable defect of output, there is provided a kind of electronic energy-saving lamp start-up circuit.

This utility model is achieved through the following technical solutions：A kind of electronic energy-saving lamp start-up circuit, mainly by transformator T, diode rectifier U, audion VT1, audion VT2, one end is connected with one of input of diode rectifier U Connect, another input of the other end and diode rectifier U is collectively forming the fuse FU of start-up circuit outfan, positive pole with The cathode output end of diode rectifier U is connected, negative pole is connected Jing after inductance L1 with the cathode output end of diode rectifier U The polar capacitor C1 for connecing, one end is connected with the cathode output end of diode rectifier U, the negative pole of the other end and polar capacitor C1 The resistance R1 being connected, positive pole is connected Jing after resistance R2 with the colelctor electrode of audion VT1, the current collection of negative pole and audion VT2 The polar capacitor C2 that pole is grounded after being connected, positive pole is connected Jing after resistance R4 with the colelctor electrode of audion VT1, negative pole and three poles The polar capacitor C3 that the base stage of pipe VT2 is connected, one end is connected with the base stage of audion VT2, the other end and audion VT2 The adjustable resistance R6 that emitter stage is connected, P poles are connected Jing after resistance R3 with the base stage of audion VT1, N poles and polar capacitor C3 The diode D1 that is connected of positive pole, P poles are connected with the negative pole of polar capacitor C3, N poles Jing after resistance R5 with the N of diode D1 The diode D2 that pole is connected, positive pole is connected with the N poles of diode D2, negative pole sequentially Jing after resistance R8 and resistance R7 with three poles The polar capacitor C6 that the emitter stage of pipe VT2 is connected, negative pole is connected with the N poles of diode D2, positive pole Jing after resistance R9 with change The polar capacitor C5 that the Same Name of Ends of depressor T former limit inductance coil L3 is connected, one end is connected with the P poles of diode D1, another The inductance L2 that is connected with the Same Name of Ends of transformator T secondary inductance coil L4 of end, and negative pole Jing after inductance L5 with transformator T pairs The polar capacitor C4 compositions that the non-same polarity of side inductance coil L4 is connected, positive pole is connected with the colelctor electrode of audion VT1；Institute State the minus earth of polar capacitor C1；The colelctor electrode of the audion VT1 is also connected with the cathode output end of diode rectifier U Connect, its emitter stage is also connected with the colelctor electrode of audion VT2；The grounded collector of the audion VT2；The diode D1 N poles be also connected with the Same Name of Ends of transformator T secondary inductance coil L4；The transformator T former limits inductance coil L3's is non-same Name end ground connection；The polar capacitor C4 is the outfan that positive pole and negative pole are collectively forming start-up circuit.

To guarantee practical effect of the present utility model, the transformator is EI57-30 booster transformers；It is simultaneously described The resistance adjustable extent of adjustable resistance R6 is 1~4M；The diode rectifier U is all-wave three-phase rectifier MT3510W.

This utility model compared with prior art, with advantages below and beneficial effect：

(1) this utility model can twice be filtered to input voltage, and effectively the harmonic wave in voltage can be carried out very well Suppression, and the voltage and current for exporting can be adjusted, make output voltage and electric current more stable, more steady, so as to this The stability of brightness when utility model effectively can ensure that LED is lit, meets well the requirement of people, well Extend the service life of LED.

(2) simple structure of the present utility model, practical, low production cost.

Description of the drawings

Fig. 1 is integrated circuit structural representation of the present utility model.

Specific embodiment

This utility model is described in further detail with reference to embodiment and its accompanying drawing, but reality of the present utility model Apply mode not limited to this.

As shown in figure 1, this utility model is mainly by transformator T, diode rectifier U, audion VT1, audion VT2, Resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, adjustable resistance R6, resistance R7, resistance R8, resistance R9, polar capacitor C1, polar capacitor C2, polar capacitor C3, polar capacitor C4, polar capacitor C5, polar capacitor C6, diode D1, diode D2, And inductance L compositions.

To guarantee practical effect of the present utility model, the transformator is EI57-30 booster transformers；It is simultaneously described The resistance adjustable extent of adjustable resistance R6 is 1~4M；Diode rectifier U is all-wave three-phase rectifier MT3510W；Meanwhile, three Pole pipe VT1 and audion VT2 are 3DD15 audions, and the resistance of resistance R1 is 1000k Ω, and the resistance of resistance R2~R4 is 10 Ω, resistance R5, resistance R7, the resistance of resistance R8 and resistance R9 are 10 Ω；Polar capacitor C1 and polar capacitor C2 is filtering Its capacitance of electric capacity is 10000 μ F, and the capacitance of polar capacitor C3 is 4.7 μ F, and polar capacitor C4 is that its capacitance of charging capacitor is 20000 The polar capacitor of μ F/800V, the capacitance of polar capacitor C5 is 400 μ F, and the capacitance of polar capacitor C6 is 2000 μ F；Diode D1 and Diode D2 is 1N5401 diodes；Inductance L1 is the filter inductance of 100 μ h, and inductance L2 and inductance L5 is shaking for 100 μ h Swing inductance.

During connection, one end of fuse FU is connected with one of input of diode rectifier U, the other end and two Another input of pole pipe commutator U is collectively forming start-up circuit outfan and is connected with civil power.Polar capacitor C1 is just Pole is connected with the cathode output end of diode rectifier U, negative pole Jing after inductance L1 with the cathode output end of diode rectifier U It is connected.One end of resistance R1 is connected with the cathode output end of diode rectifier U, the negative pole of the other end and polar capacitor C1 It is connected.The positive pole of polar capacitor C2 is connected Jing after resistance R2 with the colelctor electrode of audion VT1, and negative pole is with audion VT2's Colelctor electrode is grounded after being connected.

Wherein, the positive pole of polar capacitor C3 is connected Jing after resistance R4 with the colelctor electrode of audion VT1, negative pole and audion The base stage of VT2 is connected.One end of adjustable resistance R6 is connected with the base stage of audion VT2, and the other end is sent out with audion VT2's Emitter-base bandgap grading is connected.The P poles of diode D1 are connected Jing after resistance R3 with the base stage of audion VT1, and N poles are with polar capacitor C3 just Pole is connected.The P poles of diode D2 are connected with the negative pole of polar capacitor C3, N poles Jing after resistance R5 with the N poles phase of diode D1 Connection.The positive pole of polar capacitor C6 is connected with the N poles of diode D2, negative pole sequentially Jing after resistance R8 and resistance R7 with audion The emitter stage of VT2 is connected.

Meanwhile, the negative pole of polar capacitor C5 is connected with the N poles of diode D2, and positive pole is former with transformator T Jing after resistance R9 The Same Name of Ends of side inductance coil L3 is connected.One end of inductance L2 is connected with the P poles of diode D1, the other end and transformator T The Same Name of Ends of secondary inductance coil L4 is connected.The negative pole of polar capacitor C4 Jing after inductance L5 with transformator T secondary inductance coils The non-same polarity of L4 is connected, and positive pole is connected with the colelctor electrode of audion VT1.

The minus earth of the polar capacitor C1；The colelctor electrode of the audion VT1 also with the positive pole of diode rectifier U Outfan is connected, and its emitter stage is also connected with the colelctor electrode of audion VT2；The grounded collector of the audion VT2；Institute The N poles for stating diode D1 are also connected with the Same Name of Ends of transformator T secondary inductance coil L4；The transformator T former limit inductor wires The non-same polarity ground connection of circle L3；The polar capacitor C4 is the outfan that positive pole and negative pole are collectively forming start-up circuit, in work When LED be then serially connected between the negative pole of polar capacitor C4 and positive pole.

During work, the current rectifying and wave filtering circuit that 220V civil power Jing diode rectifier U, polar capacitor C1 and resistance R1 are formed enters After row rectifying and wave-filtering, the current rectifying and wave filtering circuit exports stable 310V DC voltages, and the 310V DC voltages then pass through polarity The wave filter that electric capacity C2 and resistance R2 is formed carries out secondary filtering, and the wave filter is carried out to the multiple harmonic in 310V DC voltages Suppress well, running voltage of the 310V DC voltages Jing after secondary filtering as this start-up circuit.Operationally audion , into self-maintained circuit of the present utility model, 310V DC voltages are being entered certainly for VT1 and audion VT2 and transformator T-shaped The voltage adjuster that Jing adjustable resistances R6, polar capacitor C3, diode D2 and polar capacitor C6 are formed after excited oscillation circuit is carried out Electric current is adjusted, and makes the DC voltage more stable, more steady, and then this is Jing after voltage adjuster voltage stabilizing and current stabilization, and self-oscillation is electric Road will generate the high frequency voltage of stable 50kHz/270V after the vibration of 310V DC voltages, the high frequency voltage is used as electronic energy-saving lamp Running voltage, the voltage is supplied to finally by the concatenation resonance brightness device that polar capacitor C4 and inductance L2 and inductance L5 are formed LED, in the process polar capacitor C4 can quickly be charged.The stable performance of the concatenation resonance brightness device, the wink of output Between start voltage Gao Erwen, and polar capacitor C4 on moment resonance potential be the high transient voltages of stable 600V, be added in LED Two ends electrode input on quickly LED can be lighted.After LED is lit, the voltage on polar capacitor C4 exists Just the normal operating value of LED is returned in the state of load.

This utility model can be carried out effectively well by being filtered twice to input voltage to the harmonic wave in voltage Suppress, and the voltage and current for exporting can be adjusted, make output voltage and electric current more stable, more steady, so as to this reality The stability of brightness, meets well the requirement of people when effectively ensure that LED is lit with New Energy, prolongs well The service life of LED is grown.And simple structure of the present utility model, practical, low production cost, so as to this practicality is new Type is well positioned to meet the requirement of people.

According to above-described embodiment, you can realize this utility model well.

Claims (4)

1. a kind of electronic energy-saving lamp start-up circuit, it is characterised in that main by transformator T, diode rectifier U, audion VT1, audion VT2, one end is connected with one of input of diode rectifier U, the other end and diode rectifier U Another input be collectively forming the fuse FU of start-up circuit outfan, positive pole is exported with the positive pole of diode rectifier U End is connected, the polar capacitor C1 that negative pole is connected Jing after inductance L1 with the cathode output end of diode rectifier U, one end and two The resistance R1 that the cathode output end of pole pipe commutator U is connected, the other end is connected with the negative pole of polar capacitor C1, positive pole Jing are electric Resistance R2 after be connected with the colelctor electrode of audion VT1, negative pole be connected with the colelctor electrode of audion VT2 after be grounded polar capacitor C2, positive pole is connected Jing after resistance R4 with the colelctor electrode of audion VT1, the polarity that negative pole is connected with the base stage of audion VT2 Electric capacity C3, one end is connected with the base stage of audion VT2, the adjustable resistance that the other end is connected with the emitter stage of audion VT2 R6, P pole is connected Jing after resistance R3 with the base stage of audion VT1, the diode that N poles are connected with the positive pole of polar capacitor C3 D1, P pole is connected with the negative pole of polar capacitor C3, the diode D2 that N poles are connected Jing after resistance R5 with the N poles of diode D1, Positive pole is connected with the N poles of diode D2, negative pole is sequentially connected Jing after resistance R8 and resistance R7 with the emitter stage of audion VT2 Polar capacitor C6, negative pole is connected with the N poles of diode D2, positive pole Jing after resistance R9 with transformator T former limit inductance coil L3 The polar capacitor C5 that is connected of Same Name of Ends, one end is connected with the P poles of diode D1, the other end and transformator T secondary inductances The inductance L2 that the Same Name of Ends of coil L4 is connected, and negative pole is non-same with transformator T secondary inductance coil L4 Jing after inductance L5 The name polar capacitor C4 that end is connected, positive pole is connected with the colelctor electrode of audion VT1 compositions；The negative pole of the polar capacitor C1 Ground connection；The colelctor electrode of the audion VT1 is also connected with the cathode output end of diode rectifier U, its emitter stage is also with three The colelctor electrode of pole pipe VT2 is connected；The grounded collector of the audion VT2；The N poles of the diode D1 also with transformator T The Same Name of Ends of secondary inductance coil L4 is connected；The non-same polarity ground connection of the transformator T former limits inductance coil L3；The polarity Electric capacity C4 is the outfan that positive pole and negative pole are collectively forming start-up circuit.

2. a kind of electronic energy-saving lamp start-up circuit according to claim 1, it is characterised in that the transformator T is EI57- 30 booster transformers.

3. a kind of electronic energy-saving lamp start-up circuit according to claim 2, it is characterised in that the resistance of the adjustable resistance R6 Value adjustable extent is 1~4M.

4. a kind of electronic energy-saving lamp start-up circuit according to claim 3, it is characterised in that the diode rectifier U For all-wave three-phase rectifier MT3510W.