CN107835554A

CN107835554A - Eye-protecting lamp

Info

Publication number: CN107835554A
Application number: CN201711388414.6A
Authority: CN
Inventors: 邵立新
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-20
Filing date: 2017-12-20
Publication date: 2018-03-23

Abstract

The present invention proposes a kind of eye-protecting lamp, including power circuit, power control circuit and fluorescent lamp Q；Power circuit includes switch K1, rectifier bridge stack UR and electric capacity C1；Power control circuit includes power factor correction controller IC1, step-up transformer T1, single-phase three-wire coil transformer T2, resistance R1 ~ R16, electric capacity C1 ~ C10, commutation diode D1 ~ D5, bidirectional trigger diode D6, the enhanced FET MT1 of N channel, NPN type amplifying triode VT1 and NPN type amplifying triode VT2；The resonance circuit of the Q includes inductance L1 and electric capacity C7；The advantage of the invention is that：Voltage regulation way is circuit of power factor correction rather than voltage-stablizer, thus without pressure reduction, directly civil power is boosted into fluorescent lamp excites required voltage, avoids the loss of voltage in pressure reduction；Circuit structure is simple, energy consumption is low, stable, and cost and use cost are below traditional permanent light lamp, are advantageous to promote the use of.

Description

Eye-protecting lamp

Technical field

The present invention relates to permanent light lamp field, and in particular to a kind of eye-protecting lamp.

Background technology

Permanent light light fixture have it is luminous do not flash, low power consumption and other advantages, be highly suitable for eye-protecting lamp purposes.In order to ensure permanent light lamp The stabilization of luminosity to the fluorescent tube of permanent light lamp, it is necessary to provide stable excitation voltage.Permanent light eyeshield of the prior art Lamp needs that civil power first is depressurized into voltage-stablizer voltage stabilized range, and boosting to fluorescent lamp again after voltage-stablizer exports stable DC voltage excites Required voltage, by transformation process twice, there is the shortcomings such as circuit structure complexity, voltage loss height, fluctuation of service. Therefore, how a kind of more simple, efficient eye-protecting lamp is provided, is just solved the problems, such as into worth.

The content of the invention

The present invention is directed to above-mentioned technical problem, proposes a kind of eye-protecting lamp, and be achieved through the following technical solutions.

The eye-protecting lamp of the present invention includes power circuit, power control circuit and fluorescent lamp Q；The power circuit includes opening Close K1, rectifier bridge stack UR and filter capacitor C1；The power control circuit includes power factor correction controller IC1, boosting Transformer T1, single-phase three-wire coil transformer T2, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, Resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, electric capacity C1, Electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C8, electric capacity C9, electric capacity C10, commutation diode D1, rectification two Pole pipe D2, commutation diode D3, commutation diode D4, commutation diode D5, bidirectional trigger diode D6, the enhanced field of N channel Effect pipe MT1, NPN type amplifying triode VT1 and NPN type amplifying triode VT2；The resonance circuit of the Q includes inductance L1 And electric capacity C7；One end connection UR of a K1 ac input end, UR another ac input end and K1's is another 220V electric mains are accessed between one end；UR direct current output positive pole connect simultaneously C1 one end, R1 one end, R2 one end with And the positive pole of T1 primary coil, UR direct current output negative pole ground connection；C1 other end ground connection, the R1 other end connect R10's simultaneously 3rd pin of one end, C2 one end and IC1, the R2 other end connect the 8th of C3 one end, D1 negative pole and IC1 simultaneously Pin, the negative pole of T1 primary coil connect the drain electrode of D2 positive pole and MT1 simultaneously, and the positive pole of T1 secondary coil connects R3 simultaneously One end and R4 one end, the negative pole of T1 secondary coil is grounded while IC1 6 pin is connected；R10 another termination Ground, C2 other end ground connection, C3 other end ground connection, the D1 positive pole connection R3 other end, D2 negative pole connect R5's simultaneously One end, C6 one end, R16 one end and D4 positive pole, IC1 the 7th pin is connected after MT1 gate series R7, MT1's Source electrode connects R8 one end and R9 one end simultaneously, and R4 other end connection IC1 the 5th pin, IC1 the 1st pin is simultaneously R6 one end and the R5 other end are connected, is grounded after IC1 the 2nd pin serial connection C4, IC1 the 4th pin connects C5's simultaneously One end and the R8 other end；C6 other end ground connection, the R16 other end connect R15 one end, C9 one end, R13 simultaneously One end, D5 positive pole, VT1 colelctor electrode, C8 one end, D6 one end, the negative pole of the primary coil of T2 first and T2 secondary coils Negative pole, D4 negative pole connect the R15 other end, the C9 other end, VT2 colelctor electrode and C10 one end simultaneously, and R8's is another End connection IC1 the 4th pin, R9 other end ground connection, R6 other end connection R11 one end, C5 other end ground connection；R13 Other end connection VT2 emitter stage, D5 negative pole connects the positive pole of R14 one end and T2 first primary coil, VT1 simultaneously Grounded emitter, VT1 base stage connect the other end of R12 one end, D3 negative pole and D6 simultaneously, and the C8 other end is grounded, The positive pole connection R12 of the T2 second primary coil other end, the negative pole ground connection of T2 second primary coil, the positive pole of T2 secondary coil Connect C7 one end, the VT2 base stage connection R14 other end, C10 other end connection L1 one end, R11 another termination Ground；D3 plus earth, the C7 other end connection L1 other end.

The present invention can also be improved further by the following technical programs.

Preferably, the UR includes four IN4007 type commutation diodes.

Preferably, the IC1 is FAN7527 type power factor correction controllers.

Preferably, the MT1 is PFC5N50 type FETs.

Preferably, described D1, D2, D3, D4 and D5 be IN4937 types diode or IN4007 types diode or IN4148 type diodes.

Preferably, the R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, C1, C2, C3, C4, C5, C6, C7, C8, C9 and C10 value are respectively 1.5 megaohms, 1.5 megaohms, 45 Europe, 20 Europe, 1.5 megaohms, 10 kilo-ohms, 110 Europe, 33 Europe, 33 Europe, 10 kilo-ohms, 2 kilo-ohms, 10 Europe, 33 Europe, 10 Europe, 510 kilo-ohms, 220 Europe, 0.47 microfarad, 0.01 microfarad, 100 microfarads, 3300 microfarads, 1000 microfarads, 10 microfarads, 3900 microfarads, 2200 microfarads, 3300 microfarads and 0.47 Microfarad.

Compared with prior art, the advantages and positive effects of the present invention are：

1st, voltage regulation way is circuit of power factor correction rather than voltage-stablizer, thus without pressure reduction, is directly boosted to civil power Fluorescent lamp excites required voltage, avoids the loss of voltage in pressure reduction；

2nd, circuit structure is simple, energy consumption is low, stable, and cost and use cost are below traditional permanent light lamp, are advantageous to push away It is wide to use.

Brief description of the drawings

Fig. 1 is a kind of electrical block diagram of embodiment of eye-protecting lamp of the present invention.

Embodiment

In order to be better understood from the present invention, illustrate with reference to the accompanying drawings and examples.

Embodiment：As shown in figure 1, the eye-protecting lamp of the present embodiment includes power circuit, power control circuit and fluorescent lamp Q；The power circuit includes switch K1, rectifier bridge stack UR and filter capacitor C1；The power control circuit include power because Number correcting controller IC1, step-up transformer T1, single-phase three-wire coil transformer T2, resistance R1, resistance R2, resistance R3, resistance R4, Resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, electricity Hinder R15, resistance R16, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C8, electric capacity C9, electric capacity C10, commutation diode D1, commutation diode D2, commutation diode D3, commutation diode D4, commutation diode D5, two-way triggering The enhanced FET MT1 of diode D6, N channel, NPN type amplifying triode VT1 and NPN type amplifying triode VT2；It is described Q resonance circuit includes inductance L1 and electric capacity C7；The K1 one end connection UR an ac input end, UR another 220V electric mains are accessed between ac input end and the K1 other end；UR direct current output positive pole connects the one of C1 simultaneously End, R1 one end, the positive pole of R2 one end and T1 primary coil, UR direct current output negative pole ground connection；C1 other end ground connection, R1 The other end connect R10 one end, C2 one end and IC1 the 3rd pin simultaneously, the R2 other end connects the one of C3 simultaneously 8th pin at end, D1 negative pole and IC1, the negative pole of T1 primary coil connect the drain electrode of D2 positive pole and MT1, T1 simultaneously The positive pole of secondary coil connect R3 one end and R4 one end simultaneously, the 6th pin of the negative pole of T1 secondary coil in connection IC1 While be grounded；R10 other end ground connection, C2 other end ground connection, C3 other end ground connection, D1 positive pole connection R3's is another End, D2 negative pole connect R5 one end, C6 one end, R16 one end and D4 positive pole simultaneously, after MT1 gate series R7 IC1 the 7th pin is connected, MT1 source electrode connects R8 one end and R9 one end simultaneously, and the R4 other end connects the 5th of IC1 the Pin, IC1 the 1st pin connect R6 one end and the R5 other end simultaneously, are grounded after IC1 the 2nd pin serial connection C4, IC1 The 4th pin simultaneously connect C5 one end and the R8 other end；C6 other end ground connection, the R16 other end connect R15 simultaneously One end, C9 one end, R13 one end, D5 positive pole, VT1 colelctor electrode, C8 one end, D6 one end, the primary coil of T2 first Negative pole and T2 secondary coils negative pole, D4 negative pole connect simultaneously the R15 other end, the C9 other end, VT2 colelctor electrode with And C10 one end, R8 other end connection IC1 the 4th pin, R9 other end ground connection, the one of R6 other end connection R11 End, C5 other end ground connection；R13 other end connection VT2 emitter stage, D5 negative pole connect R14 one end and T2 simultaneously First primary coil positive pole, VT1 grounded emitters, VT1 base stage connects R12 one end, D3 negative pole and D6 simultaneously The other end, C8 other end ground connection, the positive pole connection R12 of the T2 second primary coil other end, T2 second primary coil are born Pole is grounded, the positive pole connection C7 of T2 secondary coil one end, the VT2 base stage connection R14 other end, C10 other end connection L1 one end, R11 other end ground connection；D3 plus earth, the C7 other end connection L1 other end.The T2 is single-phase three Coil transformer, it has two primary coil and a secondary coil.

The UR can be built using four IN4007 types commutation diodes of the prior art.

The IC1 can select FAN7527 types power factor correction controller of the prior art.

The MT1 can select PFC5N50 types FET of the prior art.

Described D1, D2, D3, D4 and D5 can select IN4937 types diode of the prior art or the pole of IN4007 types two Pipe or IN4148 type diodes.

The R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, C1, C2, C3, C4, C5, C6, C7, C8, C9 and C10 value can be preferably 1.5 megaohms respectively, 1.5 megaohms, 45 Europe, 20 Europe, 1.5 megaohms, 10 kilo-ohms, 110 Europe, 33 Europe, 33 Europe, 10 kilo-ohms, 2 kilo-ohms, 10 Europe, 33 Europe, 10 Europe, 510 kilo-ohms, 220 Europe, 0.47 microfarad, 0.01 microfarad, 100 microfarads, 3300 microfarads, 1000 microfarads, 10 microfarads, 3900 microfarads, 2200 microfarads, 3300 microfarads and 0.47 Microfarad.

After closure switch K1 switches on power, the rectified filtering of civil power obtains 310V or so DC voltage；The DC voltage Converted through IC1, T1, MT1 constant power correcting element power factor correcting step-up；IC1 is by the 3rd pin through R1 and R10 to rectification Output voltage samples, and the voltage sampling by the 1st pin via the bleeder circuit that R5, R6, R11 are formed to C6 both ends, passes through the 5th Pin is to flowing through the current samples of T1 secondary coils, the pulse signal input FET MT1 of IC1 the 7th pin output grid To control MT1 break-make；When MT1 is turned on, D6 cut-offs, when MT1 ends, D6 conductings；After MT1 conductings, T1 electric currents linearly increase Add, when T1 electric currents reach peak value, MT1 shut-offs, T1 electric current linear decline, so circulation；IC1 the 7th pin output be With the pulse signal of T1 scondary inductance curent changes, by controlling MT1 break-make the peak value moment of inductive current is followed friendship The change of input voltage is flowed, so as to ensure that AC-input voltage is identical with electric current, and it is undistorted so that power factor is able to greatly Width improves, the 400V DC voltages that C6 both ends can be stablized；When C8 both ends, charging voltage reaches 28 ~ 36V, VT2 conductings, By T2 coupling, when VT2 is changed into cut-off from turning on, VT1 is changed into turning on from ending, when VT1 is changed into cut-off from turning on, VT2 is changed into turning on from ending, and such VT1 and VT2 alternations, the resonance circuit that outputting oscillation signal forms C7 and L1 are humorous Shake, so as to produce the resonance high voltage that excitation fluorescent lamp Q lights required.

Claims

A kind of 1. eye-protecting lamp, it is characterised in that：Including power circuit, power control circuit and fluorescent lamp Q；The power supply electricity Road includes switch K1, rectifier bridge stack UR and filter capacitor C1；The power control circuit includes power factor correction controller IC1, step-up transformer T1, single-phase three-wire coil transformer T2, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C8, electric capacity C9, electric capacity C10, the pole of rectification two Pipe D1, commutation diode D2, commutation diode D3, commutation diode D4, commutation diode D5, bidirectional trigger diode D6, N lead to The enhanced FET MT1 in road, NPN type amplifying triode VT1 and NPN type amplifying triode VT2；The resonance circuit of the Q Including inductance L1 and electric capacity C7；One end connection UR of a K1 ac input end, UR another ac input end And 220V electric mains are accessed between the K1 other end；UR direct current output positive pole connect simultaneously C1 one end, R1 one end, R2 one end and the positive pole of T1 primary coil, UR direct current output negative pole ground connection；C1 other end ground connection, the R1 other end is simultaneously Connect R10 one end, C2 one end and IC1 the 3rd pin, the R2 other end connect simultaneously C3 one end, D1 negative pole with And IC1 the 8th pin, the negative pole of T1 primary coil connect the drain electrode of D2 positive pole and MT1, the positive pole of T1 secondary coil simultaneously R3 one end and R4 one end are connected simultaneously, and the negative pole of T1 secondary coil is grounded while IC1 6 pin is connected；R10 Other end ground connection, C2 other end ground connection, C3 other end ground connection, the D1 positive pole connection R3 other end, D2 negative pole is same When connect R5 one end, C6 one end, R16 one end and D4 positive pole, connect the 7th of IC1 after MT1 gate series R7 Pin, MT1 source electrode connect R8 one end and R9 one end simultaneously, R4 other end connection IC1 the 5th pin, and the of IC1 1 pin connects R6 one end and the R5 other end simultaneously, is grounded after IC1 the 2nd pin serial connection C4, and IC1 the 4th pin is simultaneously Connect C5 one end and the R8 other end；C6 other end ground connection, the R16 other end connect R15 one end, the one of C9 simultaneously End, R13 one end, D5 positive pole, VT1 colelctor electrode, C8 one end, D6 one end, the negative pole and T2 of the primary coil of T2 first The negative pole of secondary coil, D4 negative pole connect the R15 other end, the C9 other end, VT2 colelctor electrode and C10 one end simultaneously, R8 other end connection IC1 the 4th pin, R9 other end ground connection, R6 other end connection R11 one end, the C5 other end Ground connection；R13 other end connection VT2 emitter stage, D5 negative pole connect R14 one end and T2 first primary coil simultaneously Positive pole, VT1 grounded emitters, VT1 base stage connect the other end of R12 one end, D3 negative pole and D6 simultaneously, and C8's is another End ground connection, the positive pole connection R12 of the T2 second primary coil other end, the negative pole ground connection of T2 second primary coil, T2 by-pass The positive pole connection C7 of circle one end, the VT2 base stage connection R14 other end, C10 other end connection L1 one end, R11's is another One end is grounded；D3 plus earth, the C7 other end connection L1 other end.
2. eye-protecting lamp according to claim 1, it is characterised in that：The UR includes four IN4007 type commutation diodes.
3. eye-protecting lamp according to claim 1, it is characterised in that：The IC1 is FAN7527 type Power Factor Correction Controls Device.
4. eye-protecting lamp according to claim 1, it is characterised in that：The MT1 is PFC5N50 type FETs.
5. eye-protecting lamp according to claim 1, it is characterised in that：Described D1, D2, D3, D4 and D5 are IN4937 types two Pole pipe or IN4007 types diode or IN4148 type diodes.
6. according to the eye-protecting lamp described in any one of claim 1 ~ 5, it is characterised in that：The R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, C1, C2, C3, C4, C5, C6, C7, C8, C9 and C10 value is respectively 1.5 megaohms, 1.5 megaohms, 45 Europe, 20 Europe, 1.5 megaohms, 10 kilo-ohms, 110 Europe, 33 Europe, 33 Europe, 10 kilo-ohms, 2 kilo-ohms, 10 Europe, 33 Europe, 10 Europe, 510 kilo-ohms, 220 Europe, 0.47 microfarad, 0.01 microfarad, 100 microfarads, 3300 microfarads, 1000 microfarads, 10 microfarads, 3900 Microfarad, 2200 microfarads, 3300 microfarads and 0.47 microfarad.