CN105792432B - A kind of drive circuit suitable for high-power energy-saving lamp - Google Patents
A kind of drive circuit suitable for high-power energy-saving lamp Download PDFInfo
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- CN105792432B CN105792432B CN201610244131.3A CN201610244131A CN105792432B CN 105792432 B CN105792432 B CN 105792432B CN 201610244131 A CN201610244131 A CN 201610244131A CN 105792432 B CN105792432 B CN 105792432B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
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Abstract
The invention discloses a kind of drive circuit suitable for high-power energy-saving lamp, including prime topological circuit and rear class topological circuit；Wherein, prime topological circuit includes resistance FR1, and resistance FR1 is connected with diode D4 positive pole, and diode D4 negative pole is connected with electric capacity C12 and I-shaped inductance L1 each pin, electric capacity C12 other pin connection power supply N importations；An I-shaped inductance L1 other pin is connected to diode D2 positive poles and on an electric capacity C7 pin, diode D2 negative pole is connected with electrochemical capacitor C8 positive pole with rear class topological circuit, electric capacity C7 other pin connection rear class topological circuit connection.The features such as present invention has simple in construction, low cost, high power factor, light output stable and reliable for performance, high power power factor and whole lamp long lifespan.
Description
Technical field
The present invention relates to electricity-saving lamp technology, a kind of specifically drive circuit suitable for high-power energy-saving lamp.
Background technology
With the development of illuminating industry, electricity-saving lamp market has had evolved to the highly developed stage, and it is fiercer to compete,
It is winning eliminate it is bad, constantly lead industry new technology, reduce cost, improve cost performance be industry main trend, particularly LED's is continuous
It is ripe that even more electricity-saving lamp industry constantly explores new technology, research new line, the direct stimulus for improving cost performance with substituting,
The only continuous lifting of overall performance and keeping on top for price, can just make product not fallen independently of market with keeping competition excellent
Property, so as to obtain greatest benefit for company.High-power energy-saving lamp color rendition index is high, up to 79-85 or so, high-power energy-saving lamp
Wattage is more than 100W, it is well known that the high-power and high-reliability energy-conservation lamp driver of current main flow mainly uses prime
The control mode of APFC Active PFCs chip+rear class oscillating half bridge output control chip, although excellent performance, but cost
Height, compared with the LED high-power energy-saving lamps occurred now, without obvious cost advantage, so, exploitation has more
Low cost, the performance of characteristic but keep constant or more excellent novel practical circuit, are the problems for having to face, are more to continue with
Lead the central factor with keeping the market competitiveness.
The content of the invention
It is an object of the invention to overcome the shortcomings of that above prior art is present there is provided a kind of simple in construction, cost just
Preferably, high power factor, light output be stable and reliable for performance, power power factor is high and whole lamp long lifespan is applied to high-power energy saving
The drive circuit of lamp.
In order to achieve the above object, the present invention uses following technical scheme：A kind of driving suitable for high-power energy-saving lamp
Circuit, including prime topological circuit and rear class topological circuit；Wherein, prime topological circuit includes resistance FR1, resistance FR1 and two
Pole pipe D4 positive pole connection, diode D4 negative pole is connected with electric capacity C12 and I-shaped inductance L1 each pin, electric capacity C12's
Other pin connection power supply N importations；An I-shaped inductance L1 other pin is connected to diode D2 positive poles and electric capacity C7
A pin on, diode D2 negative pole is connected with electrochemical capacitor C8 positive pole with rear class topological circuit, other the one of electric capacity C7
The connection rear class topological circuit connection of pin；Power supply sine wave AC negative sense alternating current carries out diode after being inputted through resistance FR1
D5 negative sense rectifications, diode D5 positive pole is connected with electric capacity C4 and I-shaped inductance L2 each pin, other one of electric capacity C4
Pin connection power supply N importations, an I-shaped inductance L2 other pin is connected to one of diode D3 negative poles and electric capacity C11
On pin, diode D3 positive pole is connected with electrochemical capacitor C9 negative pole with rear class topological circuit, and an electric capacity C11 other pin connects
It is connected to the connection of rear class topological circuit.
The rear class topological circuit includes triode Q1, after negative pole and electrochemical capacitor C8 rectifying and wave-filterings through diode D2
The positive pole of DC voltage one end is connected on triode Q1 colelctor electrodes, and other end is separated into two-way, wherein connecting resistance all the way
R13A and resistance R13B, is connected on resistance R8 and resistance R9 all the way in addition, and diode is connected to after R13A and resistance 13B series connection
D14 negative pole；On one group of filament leg of fluorescent tube；, resistance R8 and resistance R9 series connection Hou Fen tri- tunnels are connected respectively to resistance R10's
On the negative pole of one pin, an electric capacity C13 pin and voltage-stabiliser tube ZD2；A resistance R10 other pin is connected to the PC pin of chip, electricity
Hold a C13 other pin with being connected to power supply；A voltage-stabiliser tube ZD2 other pin positive pole is with being connected to power supply；Resistance R10's
The pin being connected with PC pin is also respectively connected with resistance R11 and electric capacity C14；A resistance R11 other pin is with being connected to power supply；Electricity
Hold a C14 other pin with being connected to power supply；Electric capacity C7 and electric capacity C11 junctions are connected with diode D14 negative pole, are formed
First loop, electric capacity C7 and electric capacity C11 junctions are connected with one group of filament of fluorescent tube, form second servo loop, the first loop and the
Export, be then attached on a resistance R6 pin jointly after secondary circuit is in parallel；A resistance R6 other pin is connected with resistance R7, electricity
A resistance R7 other pin is connected on the VCC pin of chip, and offer starting current is carried out to chip and is powered, diode D14's
It is connected after positive pole is in parallel with an other pin for this group of filament with the pin of electric capacity C6 mono-, electric capacity C6 an other pin and diode
D13 is connected with diode D10 positive pole and the another set filament of fluorescent tube, diode D13 and diode D10 negative pole and this group
It is connected after an other pin for filament is in parallel with the pin of transformer T1 mono-, a transformer T1 other pin is connected respectively to several
On branch road：First branch road is connected on the Vs pin of chip by the D15 that connects；Second branch road is connected to triode Q1 transmitting
On extremely；3rd branch road is connected on triode Q2 colelctor electrode；4th branch road is connected on electric capacity C3, and electric capacity C3 is in addition
One pin is connected on the VB pin of chip by the D11 that connects；Transformer T1 also has a pin to be connected on electric capacity C5, electric capacity C5's
An other pin is connected on two branch roads, is on diode D1 positive pole and voltage-stabiliser tube Z D1 negative pole respectively；Diode D1
Negative pole be connected on two branch roads：First branch road is attached on electric capacity C15, electric capacity C15 other pin connection
With arriving power supply；Another branch road of D1 negative pole is connected on resistance R4, and a resistance R4 other pin is connected to resistance R5
On, a resistance R5 other pin is connected on the SW pin of chip.
The chip is AT6158 chips.
The present invention has the following advantages and effect relative to prior art：
1st, the present invention includes prime topological circuit and rear class topological circuit；Wherein, prime topological circuit includes resistance
FR1, resistance FR1 is connected with diode D4 positive pole, diode D4 negative pole and electric capacity C12 and I-shaped inductance L1 each pin
It is connected, electric capacity C12 other pin connection power supply N importations；An I-shaped inductance L1 other pin is connected to diode
On D2 positive poles and electric capacity C7 a pin, diode D2 negative pole is connected with electrochemical capacitor C8 positive pole with rear class topological circuit,
Electric capacity C7 other pin connection rear class topological circuit connection；Power supply sine wave AC negative sense alternating current is defeated through resistance FR1
Diode D5 negative sense rectifications are carried out after entering, diode D5 positive pole is connected with electric capacity C4 and I-shaped inductance L2 each pin, electricity
Hold C4 other pin connection power supply N importations, an I-shaped inductance L2 other pin is connected to diode D3 negative poles
With on an electric capacity C11 pin, diode D3 positive pole and electrochemical capacitor C9 negative pole pass through C1, C2 points and rear class topological circuit
Connection, an electric capacity C11 other pin is connected to the connection of rear class topological circuit, with simple in construction, low cost, high power because
The features such as element, light output stable and reliable for performance, high power power factor and whole lamp long lifespan.
2nd, itself performance characteristics that the present invention is taken full advantage of in terms of electronic component carried out it is mutual it is ingenious use cooperatively,
So as to a kind of topological circuits of the PPFC for proposing economical and practical high PF power factor (PF)s for realizing preferable environmental protection and economy benefit, so that
Realize the optimization of circuit structure and cost；Power factor (PF) can be corrected to more than 0.93, and highest can reach 0.97, so that real
Existing high PF Active PFCs function.Simultaneously as the voltage pump height lifting circuit that two ranks are added in input circuit (divides
It is not L1, D2；L2, D3 voltage order one lifting line function and C7, D2；C11, D3 lifting line function), and it is forward and reverse right
Claim, thus it is preferable to the charge stability of electrolysis, the heavy current impact to electrolysis is reduced, the life-span of electrolysis is lifted, increases product
Reliability.
The chip AT6159 pre- thermocurrent pin of original PC, a fixed value are not set as by the 3rd, rear class topological circuit of the present invention,
But the circuit that a RC integrating circuit is matched with voltage-stabiliser tube is set as, so that main high-low pressure raising frequency effect is realized, chip
AT6159 original SW preheating times pin is connected with Vcc pin, then can further realize that high-low pressure raising frequency is acted on, that is, work as input voltage
When too high or too low, Vcc voltage is also lifted or reduced accordingly, then the pin voltage increase equivalent to SW or reduction, then
The voltage for making SW pin is not a fixed value, but is fallen within the scope of one dynamic, then when can realize dynamic preheating
Adjusting function, i.e., indirectly realize the effect of high-low pressure raising frequency.
4th, the present invention is mainly suitable for more than with the product equal to more than 105w, advantage is more obvious.
Brief description of the drawings
Fig. 1 is a kind of circuit diagram of drive circuit suitable for high-power energy-saving lamp；
Fig. 2 is prime topological circuit schematic diagram in the present invention；
Fig. 3 is prime topological circuit schematic diagram in the present invention.
Embodiment
For ease of it will be appreciated by those skilled in the art that below in conjunction with the accompanying drawings and embodiment the present invention is made it is further specifically
It is bright.
Embodiment 1：
As shown in Figures 1 to 3, a kind of drive circuit suitable for high-power energy-saving lamp, including prime topological circuit and rear class
Topological circuit；As shown in Fig. 2 the prime topological circuit in the present embodiment is including resistance FR1, resistance FR1 and diode D4 just
Pole is connected, and diode D4 negative pole is connected with electric capacity C12 and I-shaped inductance L1 each pin, an electric capacity C12 other pin
Connect power supply N importations；An I-shaped inductance L1 other pin is connected on diode D2 positive poles and electric capacity C7 a pin,
Diode D2 negative pole is connected with electrochemical capacitor C8 positive pole with rear class topological circuit, electric capacity C7 other pin connection rear class
Topological circuit is connected；For convenience, it is specifically：Diode D2 negative pole and electrochemical capacitor C8 positive pole with by A1,
A2 points are connected with triode Q1 colelctor electrode, and an other pin for C7 electric capacity is connected to B1, B2 points；Power supply sine wave AC negative sense
Alternating current carries out diode D5 negative sense rectifications, diode D5 positive pole and electric capacity C4 and I-shaped inductance after being inputted through resistance FR1
L2 each pin is connected, and electric capacity C4 other pin connection power supply F importations, an I-shaped inductance L2 other pin connects
On a pin for being connected to diode D3 negative poles and electric capacity C11, diode D3 positive pole and electrochemical capacitor C9 negative pole and rear class
Topological circuit is connected, and an electric capacity C11 other pin is connected to the connection of rear class topological circuit；It is specifically：Diode D3 is just
Pole and electrochemical capacitor C9 negative pole are by C1, and C2 points are connected with triode Q2 emitter stage, electric capacity C11 other pin connection
To B1, B2 point.Prime topological circuit design purpose be carry out Active PFC, make product reach power factor (PF) 0.93 with
On, so as to realize that product is few to power pollution, the lighting energy saving low in energy consumption, real for realizing environmental protection idle to power grids circuits
Application concept, while being substantially reduced to the charging and discharging currents of electrolysis, the application life of lifting Primary Component electrolysis and whole lamp life-span.
Prime topological circuit realization principle：D4, the low frequency ac stream of 5 pairs of inputs carries out forward and reverse rectification respectively, becomes
The DC component of pulsation, then C12, C4 is filtered respectively, makes the pulsating dc voltage of output more smooth；L1, D2, D3,
L2, C7, C11 realize the capability correction function of tonic chord, wherein, D2, L1, C7 and D3, L2, C11 are the symmetrical circuits of positive-negative phase, respectively
Align negative sense input Rectified alternating current stream and carry out PF corrections.The first step mainly acts on this characteristic first with the energy storage of inductance,
Increase L1, L2 connects and carries out inductive energy storage effect respectively in circuit, so that the pulsating dc voltage of backbone circuits is raised, then has
Beneficial to the charging voltage lifting ability of the electrolysis in lifting late-class circuit, so that the electrolysis charging current angle of flow is bigger, and rise
To the effect for lifting a part of PF；Then, after successive load starting of oscillation, the high fdrequency component of feedback feeds back to this respectively through C7, C11
On L1, L2 output pin, make overlapped high-frequency component on this waveform, then again by D2, D3 aligns negative input half cycle respectively
Pulsating direct current waveform carries out high-frequency rectification, so that the charging voltage of electrolysis is further lifted, with continuing to expand electrolysis charging current
Angle of flow ducting capacity, PF is further lifted to more than 0.93.
As shown in figure 3, the rear class topological circuit in the present embodiment includes triode Q1, negative pole and electrolysis through diode D2
The positive pole of DC voltage one end after electric capacity C8 rectifying and wave-filterings is connected on triode Q1 colelctor electrodes, and other end is separated into two
Road, wherein connecting resistance R13A and resistance R13B all the way, is connected on resistance R8 and resistance R9, R13A and resistance all the way in addition
Diode D14 negative pole is connected to after 13B series connection；On one group of filament leg of fluorescent tube；, divide three after resistance R8 and resistance R9 series connection
Road is connected respectively on the negative pole of a resistance R10 pin, an electric capacity C13 pin and voltage-stabiliser tube ZD2；Other one of resistance R10
Pin is connected to the PC pin of chip, and an electric capacity C13 other pin is with being connected to power supply；A voltage-stabiliser tube ZD2 other pin positive pole
With being connected to power supply；The resistance R10 pin being connected with PC pin is also respectively connected with resistance R11 and electric capacity C14；Resistance R11's is another
An outer pin is with being connected to power supply；An electric capacity C14 other pin is with being connected to power supply；Electric capacity C7 and electric capacity C11 junctions with
Diode D14 negative pole is connected, and forms the first loop, and electric capacity C7 and electric capacity C11 junctions are connected with one group of filament of fluorescent tube, shape
Into second servo loop, export, be then attached on a resistance R6 pin jointly after the first loop and second servo loop parallel connection；Resistance R6's
An other pin is connected with resistance R7, and a resistance R7 other pin is connected on the VCC pin of chip, and carrying out offer to chip opens
Streaming current is powered, and is connected after diode D14 positive pole is in parallel with an other pin for this group of filament with the pin of electric capacity C6 mono-, electric capacity C6
An other pin be connected with the another set filament of diode D13 and diode D10 positive pole and fluorescent tube, diode D13 and
It is connected after diode D10 negative pole is in parallel with an other pin for this group of filament with the pin of transformer T1 mono-, transformer T1 is in addition
One pin is connected respectively on several branch roads：First branch road is connected on the Vs pin of chip by the D15 that connects；Second branch
Road is connected on triode Q1 emitter stage；3rd branch road is connected on triode Q2 colelctor electrode；4th branch road connection
Onto electric capacity C3, an electric capacity C3 other pin is connected on the VB pin of chip by the D11 that connects；Transformer T1 also has a pin
It is connected on electric capacity C5, an electric capacity C5 other pin is connected on two branch roads, is diode D1 positive pole and voltage stabilizing respectively
On pipe Z D1 negative pole；Diode D1 negative pole is connected on two branch roads：First branch road is attached on electric capacity C15,
An electric capacity C15 other pin is with being connected to power supply；Another branch road of D1 negative pole is connected on resistance R4, resistance R4's
An other pin is connected on resistance R5, and a resistance R5 other pin is connected on the SW pin of chip.Rear class topological circuit is real
Existing purpose is to detect the bus voltage in electrolysis with loading fluorescent tube, during by pre-heat frequency and the preheating of control chip
Between, to realize that the vibration of high reliability is exported, whole lamp output performance is avoided defect (this of high-power lamp common on the market
Class circuit is generally driven using magnet ring or metal-oxide-semiconductor, is limited by the tolerance of magnetic material, whole lamp output performance fluctuation is big, performance
It is unstable), it is special for being that this circuit has the functions such as the automatic raising frequency rate of low pressure, then preferably lamp can be made more reliable in a low voltage state
Work.
Rear class topological circuit realization principle：Decomposition voltage activated resistance R13A, R13B on C8, C9, one group of lamp of fluorescent tube
Silk, R6, R7 to chip AT6159 VCC pin are for starting voltage, and this startup voltage provides power supply to internal oscillating circuit and is allowed to
Work, when oscillating circuit reaches the default frequency of oscillation of the pin of chip exterior 3, chip circuit exports this default high frequency in VS pin
Square-wave waveform carries out frequency sweep, while HO/LO pin output timing square waves begin to turn on one of two metal-oxide-semiconductors, then makes whole light trough road
Formed alternative looping possess starting condition for oscillation (respectively from power supply --- C7-- tube filaments --- big inductance T1---MOS pipes Q2--,
Another loop is electrolysis power -- Q1--T1-- fluorescent tube another set filaments -- C11) so that lamp electric capacity and the big inductance of T1
Forming resonance generation instantaneous pressure punctures fluorescent tube, so that oscillation circuit is formed, meanwhile, pass through ZD1 after C5 sampling ac high-voltages
Voltage stabilizing, D1 rectifications are continuously powered to chip after C15 filtering, oscillation circuit is continuously kept.
Chip in the present embodiment is AT6158 chips.
There is the peripheral resistance of the pin SW pin of chip 4 in the present embodiment fine setting chip to start the function of preheating time, then can
It is prevented effectively from fluorescent tube hard firing；If the periphery circuit of the pin of chip 5 carries out coordination matching, the preheating of chip can be preferably set
The function of current, then can have more preferable pre-heat effect when fluorescent tube starts, and be prevented effectively from that fluorescent tube blackhead, initial failure etc. are various to ask
Topic, the life-span of prolonging lamp tube；The output current ability of chip is big, high-power product can be dragged well, more conventional rear class is adopted
Small with magnet ring oscillator circuit current fluctuation, component reliability is high, and the life-span is stable and reliable, and integrated maintenance cost is low；Matching is hereafter
After level topology, the load output facet job stability of whole lamp is high, is adapted to the fluctuation of broadband load current, fluorescent tube is fitted
With property very well, reduce to the requirement in terms of fluorescent tube, reduce the cost of this respect；Match after this rear class topological circuit, whole lamp
Performance is able to be lifted well, and output performance is excellent, can realize the performance indications in terms of higher light efficiency, loss；The pin of chip 5
Periphery circuit matching after can realize main high-low pressure raising frequency function, when direct current power source voltage is too low, conventional line because
Fluorescent tube pipe pressure is gradually risen, then tube filament electric current gradually increases, and fluorescent tube pipe stream is gradually reduced, then whole lamp efficiency is tapered into,
It can gradually be increased by the total current of the tank circuit, then the component electric current in crucial tank circuit loop can be made also synchronously to increase, temperature increase,
Eventually reduce whole lamp key componentses reliability, influence the life-span of product.And this circuit, under low pressure, dc source electricity
Pressure is through R8, and the voltage of 5 pin is fed back to after 9 decompressions also synchronously to be reduced, then reaches the rated frequency setting threshold voltage of chip internal
Under can open quenching frequency fine adjustment function, then the frequency of oscillation of automatic adjustment height chip in itself, then relative to the capacitive frequency of whole lamp,
Chip frequency is to play the purpose adjusted toward capacitive direction, then is equivalent to the purpose that whole lamp is turned down toward perception aspect frequency, so that
The now capacitive state in whole lamp loop is avoided, whole lamp mesh current is limited in certain scope, so that key element
Electric current and temperature rise be also defined in certain scope, improve the reliability of product.
After this circuit is applied in 127v 105w HPF machines, verified by strict debugging in 3 months with a series of tests
Afterwards, show that output performance test result is as follows：
1st, rated voltage/frequency：127V/50Hz；
2nd, input voltage range：130~280V；
3rd, power factor：≥0.98；
4th, total harmonic distortion：≤ 15%；
5th, working frequency：≥42KHz；
6th, light efficiency：2700K/6500K is respectively：67/65Lm/W；Higher than European efficiency A grades of standards；
7th, operating ambient temperature：- 10 DEG C~50 DEG C；
8th, colour rendering index：2700K/6500K≥80；
9th, color tolerance：＜ 5；
10th, 60% luminous flux time-to-climb：Single lamp<60 seconds
11st, lux maintenance：2000 hourly average >=85%；6000 hourly average >=70%；
12nd, long lifespan, median life span can meet important requirement of the market to the life-span up to 10000 hours；
13rd, switch performance is good, starts the time<1 second switch intermediate value >=30000 time；
14th, simple in construction, production efficiency is high；
15th, RoHS requirements, mercury content are met：<5mg.
16th, cost performance performance is protruded, and old machine is present at present whole lamp cost and production cost is solved well higher
The problem of, it is alternative outstanding, suit large area to popularize.
Circuit in the present embodiment, is opened with starting protection function under special load open circuit and the filament under normal work
Road maintains service behaviour and the three-in-one function of rectification state abnormal protection：
Filament open circuit under normal work maintains service behaviour：D13, D10 are connected in parallel on one winding of fluorescent tube, work as T1
When the loaded line open circuit or this end Filament Winding open circuit that are connected with fluorescent tube, load circuit passes through D13, and D10, C6 forms loop,
Maintained vibration；When fluorescent tube left side Filament Winding disconnects, oscillation circuit electric current can carry out electric current maintenance by D14；
And C10 effect is under this load open circuit abnormal operation, to improve the stabilization of whole circuit for lamp work under this working condition
Property and reliability because under this abnormality, flow through the lamp current reduction inside fluorescent tube, but by D10,13 electric current can increase
Plus, so can increase by C10 shunting action, so as to reduce impact of the heater current to C6, and make load to the defeated of fluorescent tube
Go out characteristic to be basically unchanged；And under normal operating conditions because heater current is in itself and less, and C10 be not connected on T1 one end with
Between power supply ground, so by C10 shunting and little, so that during filament or load open circuit under realizing normal operating conditions
Normal working performance, can guarantee that the stability under working conditions of circuit；C10 another effect is because of one not directly with T1
Pin is connected, so during the disengagement of any one Filament Winding, T1 will not be with C10 resonance, so as to avoid other T1, the starting of oscillation of C10 loops
Cause the whole other starting of oscillation in lamp loop.This overall circuit, it is overall under the load open circuit state of energy Reliable guarantee circuit after debugging
Property retention is constant, and under rectification state state, also with other abnormity protection function.
Load open circuit protection under starting state：When the winding open circuit on the fluorescent tube left side, although D14 diodes and fluorescent tube lamp
Silk is in parallel, but D14 is that negative pole is connected with R13B, so when left side Filament Winding is opened a way, supply voltage can not be flowed by D14
R6 resistance is given, so that R7 can not be flowed through to chip power supply, so that start-up circuit and starting protection can not be realized；Lamp on the right of fluorescent tube
Filament winding group open a way when, be also D10 similarly, D13 negative pole is connected with T1 pin, thus also can not by this filament around
Group is powered to R6, then can not also realize that whole lamp starts.
State abnormal protection：When rectification state occurs in whole lamp, the electronic powder on tube filament is in close to spent condition,
And residual volume is inconsistent on the filament of lamp tube ends, now, fluorescent tube can be in flicker state, so, when first rectification state
When state occurs, either the periphery circuit of which side winding of fluorescent tube, can not all be powered by D10, D13, D14 to R6, so that nothing
Method starts whole lamp vibration, realizes defencive function.
Above-mentioned embodiment is the preferred embodiments of the present invention, can not be limited the invention, and others are appointed
Change or other equivalent substitute modes that what is made without departing from technical scheme, are included in the protection of the present invention
Within the scope of.
Claims (3)
1. a kind of drive circuit suitable for high-power energy-saving lamp, it is characterised in that：Including prime topological circuit and rear class topology
Circuit；Wherein, prime topological circuit includes resistance FR1, and resistance FR1 is connected with diode D4 positive pole, diode D4 negative pole
It is connected with electric capacity C12 and I-shaped inductance L1 each pin, electric capacity C12 other pin connection power supply N importations；I-shaped
An inductance L1 other pin is connected to diode D2 positive poles and on an electric capacity C7 pin, diode D2 negative pole and electrolysis are electric
The positive pole for holding C8 is connected with rear class topological circuit, electric capacity C7 other pin connection rear class topological circuit；Power supply sine wave is born
Diode D5 negative sense rectifications, diode D5 positive pole and electric capacity C4 and I-shaped electricity are carried out after being inputted to alternating current through resistance FR1
Each pin for feeling L2 is connected, electric capacity C4 other pin connection power supply N importations, an I-shaped inductance L2 other pin
On a pin for being connected to diode D3 negative poles and electric capacity C11, after diode D3 positive pole is connected with electrochemical capacitor C9 negative pole
Level topological circuit, an electric capacity C11 other pin is connected to rear class topological circuit.
2. the drive circuit according to claim 1 suitable for high-power energy-saving lamp, it is characterised in that：The rear class topology
Circuit includes triode Q1, and the negative pole through diode D2 and the positive pole of DC voltage one end after electrochemical capacitor C8 rectifying and wave-filterings connect
It is connected on triode Q1 colelctor electrodes, other end is separated into two-way, wherein connecting resistance R13A and resistance R13B, in addition one all the way
Road is connected on resistance R8 and resistance R9, and diode D14 negative pole and fluorescent tube are connected to after resistance R13A and resistance R13B series connection
One group of filament leg on；Resistance R8 and resistance R9 series connection Hou Fen tri- tunnels are connected respectively to a resistance R10 pin, electric capacity C13
On one pin and voltage-stabiliser tube ZD2 negative pole；A resistance R10 other pin is connected to the PC pin of chip, other one of electric capacity C13
Pin is with being connected to power supply；A voltage-stabiliser tube ZD2 other pin positive pole is with being connected to power supply；The resistance R10 pin being connected with PC pin
Also it is respectively connected with resistance R11 and electric capacity C14；A resistance R11 other pin is with being connected to power supply；Other the one of electric capacity C14
Pin is with being connected to power supply；Electric capacity C7 and electric capacity C11 junctions are connected with diode D14 negative pole, form the first loop, electric capacity
C7 and electric capacity C11 junctions are connected with one group of filament of fluorescent tube, are formed behind second servo loop, the first loop and second servo loop parallel connection altogether
With output, it is then attached on a resistance R6 pin；A resistance R6 other pin is connected with resistance R7, other one of resistance R7
Pin is connected on the VCC pin of chip, and offer starting current is carried out to chip and is powered, diode D14 positive pole and this group of filament
An other pin it is in parallel after be connected with the pin of electric capacity C6 mono-, an electric capacity C6 other pin and diode D13's and diode D10
The another set filament of positive pole and fluorescent tube is connected, an other pin for diode D13 and diode D10 negative pole and this group of filament
It is connected after parallel connection with the pin of transformer T1 mono-, a transformer T1 other pin is connected respectively on several branch roads：First branch
Road is connected on the Vs pin of chip by the D15 that connects；Second branch road is connected on triode Q1 emitter stage；3rd branch road
On the colelctor electrode for being connected to triode Q2；4th branch road is connected on electric capacity C3, and an electric capacity C3 other pin passes through series connection
D11 is connected on the VB pin of chip；Transformer T1 also has a pin to be connected on electric capacity C5, electric capacity C5 other pin connection
It is on diode D1 positive pole and voltage-stabiliser tube Z D1 negative pole respectively onto two branch roads；Diode D1 negative pole is connected to
On two branch roads：First branch road is attached on electric capacity C15, and an electric capacity C15 other pin is with being connected to power supply；D1's is negative
Another branch road of pole is connected on resistance R4, and a resistance R4 other pin is connected on resistance R5, and resistance R5 is in addition
One pin is connected on the SW pin of chip.
3. the drive circuit according to claim 2 suitable for high-power energy-saving lamp, it is characterised in that：The chip is
AT6158 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610244131.3A CN105792432B (en) | 2016-04-19 | 2016-04-19 | A kind of drive circuit suitable for high-power energy-saving lamp |
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| CN108110888A (en) * | 2017-11-20 | 2018-06-01 | 上海裕达实业有限公司 | It is switched fast power circuit and its switching method |
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| CN100438714C (en) * | 2000-12-04 | 2008-11-26 | 皇家菲利浦电子有限公司 | Ballast circuit arrangement |
| US9131544B2 (en) * | 2011-12-01 | 2015-09-08 | RAB Lighting Inc. | LED driver protection circuit |
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| US9237621B1 (en) * | 2014-08-22 | 2016-01-12 | Universal Lighting Technologies, Inc. | Current control circuit and method for floating IC driven buck-boost converter |
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| CN205648092U (en) * | 2016-04-19 | 2016-10-12 | 瑞金市得邦照明有限公司 | Drive circuit suitable for high -power energy -saving lamp |
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| CN2847789Y (en) * | 2005-12-09 | 2006-12-13 | 济源市荣泰电光源有限公司 | Special ballast for improved high power energy saving lamp tube |
| CN201726557U (en) * | 2010-06-24 | 2011-01-26 | 高志洪 | Special improved ballast for high-power energy saving lamp tube |
| CN203788181U (en) * | 2014-04-12 | 2014-08-20 | 张朝辉 | Half-bridge type power converter with APFC function |
| CN204168564U (en) * | 2014-11-13 | 2015-02-18 | 广东雪莱特光电科技股份有限公司 | High-power energy saving lamp drive circuit and high-power energy-saving lamp |
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| CN100438714C (en) * | 2000-12-04 | 2008-11-26 | 皇家菲利浦电子有限公司 | Ballast circuit arrangement |
| US9131544B2 (en) * | 2011-12-01 | 2015-09-08 | RAB Lighting Inc. | LED driver protection circuit |
| US9237621B1 (en) * | 2014-08-22 | 2016-01-12 | Universal Lighting Technologies, Inc. | Current control circuit and method for floating IC driven buck-boost converter |
| CN204652730U (en) * | 2015-04-27 | 2015-09-16 | 鑫谷光电股份有限公司 | A kind of High Power Factor LED dimming driving circuit |
| CN205160843U (en) * | 2015-08-31 | 2016-04-13 | 鑫谷光电股份有限公司 | Turn over to swash formula LED drive circuit that adjusts luminance |
| CN205648092U (en) * | 2016-04-19 | 2016-10-12 | 瑞金市得邦照明有限公司 | Drive circuit suitable for high -power energy -saving lamp |
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| CN105792432A (en) | 2016-07-20 |
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