CN102769984A - Magnetic integrated transformer for high-frequency high-pressure sodium lamp electronic ballast and ballast - Google Patents
Magnetic integrated transformer for high-frequency high-pressure sodium lamp electronic ballast and ballast Download PDFInfo
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- CN102769984A CN102769984A CN2012102514903A CN201210251490A CN102769984A CN 102769984 A CN102769984 A CN 102769984A CN 2012102514903 A CN2012102514903 A CN 2012102514903A CN 201210251490 A CN201210251490 A CN 201210251490A CN 102769984 A CN102769984 A CN 102769984A
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Abstract
The invention discloses a magnetic integrated transformer for a high-frequency high-pressure sodium lamp electronic ballast. A magnetic core comprises a central column and side columns on two sides, wherein the central column is divided into an upper part and a lower part; a magnetic core gap is formed in the middle gap; an ignition winding is wound on the upper part or the lower part of the central column to form a primary winding of the transformer; the two side columns are respectively positioned on two sides of the central column and are connected to form a large annular structure; the central column is connected in the middle of the large annular structure and respectively forms two small annular structures with the two side columns; a first winding and a second winding are respectively wound on the two side columns; the same ends of the first winding and the second winding are connected to serve as a secondary winding of the transformer; and the winding mode of the first winding and the second winding is required to meet the requirement of forming clockwise and anticlockwise annular magnetic fields in opposite directions in the large annular structure. The magnetic integrated transformer serves as a transformer during ignition and serves as a current-limiting control inductor, so that the high-pressure ignition, current-limiting operation and operating frequency can be balanced and optimized. The invention also discloses a ballast employing the transformer.
Description
Technical field
The present invention relates to a kind of when igniting as transformer, the igniting back as the high-frequency and high-voltage electronic ballast of sodium lamp of the inductance that the electric current that flows through light source is carried out Current limited Control with magnetic integrated transformer and the ballast that uses this transformer.
Background technology
High-power high voltage sodium vapor lamp (HPS) has been widely used in fields such as street lamp, operating mode illumination, plant light filling as the traditional lighting light source; High-power high voltage sodium vapor lamp (HPS) light source of 250W to 1000W particularly; In many applications, still has the advantage that other light source product is difficult to substitute, especially aspect intensity of illumination and application cost.
Progressively propelling along with energy-saving and emission-reduction and green illumination; The electric ballast that drives high-power high voltage sodium vapor lamp (HPS) is energy-efficient with it, volume is little, in light weight; Particularly prolong clear superiorities such as light source useful life significantly, just at the traditional Inductive ballast of increasing replacement.
So far the electric ballast of high-power high voltage sodium vapor lamp (HPS) adopts low-frequency square-wave or high-frequency resonant type of drive to come driving light source more both at home and abroad.
The operation principle of existing traditional high-power half-bridge of resonant mode and the topological electric ballast of full-bridge such as Fig. 1-shown in Figure 3, half-bridge and full-bridge topology always work in resonance condition.The equivalent resistance of resonant inductance Lo, resonant capacitance Co and light source Lamp constitutes voltage-type series parallel resonance circuit.For different light source (Lamp) operating state (light and extinguish), the operating frequency fs of adjustment bridge circuit controls the igniting and the current limliting of light source (Lamp).
Characteristics when traditional resonant mode electric ballast is lighted a fire:
(1) light source (Lamp) is equivalent to open-circuit condition when not lighting, and the equivalent resistance of light source (Lamp) is infinitely great;
(2) wire resistor of resonant inductance is very little;
(3) the quality factor q value of resonant circuit is very big, is far longer than 100 usually;
(4) starting resistor of light source (Lamp) is usually greater than 15KV;
Amplitude-frequency characteristic when (5) being lighted a fire by conventional electronic ballast is visible, and for the starting resistor (Ignite Line) that reaches light source (Lamp), corresponding spark rate (g) is very near the resonance angular frequency (fo) of resonant circuit.
Characteristics when traditional resonant mode electric ballast current limliting is worked:
(1) equivalent resistance of light source (Lamp) after lighting is less, usually less than 50 ohm;
(2) the quality factor q value of resonant circuit is less, usually less than 0.5;
Amplitude-frequency characteristic when (3) being worked by conventional electronic ballast is visible; For the rated operational voltage (Operate Line) that reaches light source (Lamp); Corresponding electrical circuits operating frequency (fs) is generally (0.2 ~ 0.4) resonance angular frequency (fo) doubly far below the resonance angular frequency (fo) of resonant circuit.
Through the above explanation of characteristics and current limliting work characteristics during to the igniting of traditional resonant mode electric ballast; Thus it is clear that the igniting of existing high-power half-bridge and full-bridge topology electric ballast and light after the current limliting operating state while be associated with resonant inductance Lo, resonant capacitance Co, the operating frequency of ballast and the state of light source (Lamp) of resonant circuit, the major defect that causes thus is:
(1) during resonant ignition since spark rate (fig) very near the resonance angular frequency (fo) of resonant circuit,
Resonant circuit is operated in very high Q state of value simultaneously, can produce sizable resonance current in the resonant circuit, and this resonance current will cause very big stress impact to the device for power switching in the bridge circuit.
(2) device for power switching in the bridge circuit damages when igniting, must select the device of big safety operation area, causes the increase of circuit cost.
(3) excessive resonance current in the bridge circuit need be done accurately spark rate or the frequency sweep frequency of lighting a fire usually and set; Must cooperate overvoltage protection, the overcurrent protection of resonance bridge circuit in addition, make control circuit complicated, reliability reduces.
(4) for fear of electronic devices and components, particularly the parameter discrete problem of resonant inductance Lo must improve the required precision to resonating device to the influence of bridge circuit resonance characteristic, causes the increase of circuit cost.
(5) aging gradually along with light source (Lamp), the requirement meeting of its ignition voltage increases thereupon, to the setting of the spark rate or the frequency sweep frequency of lighting a fire old light source Lamp can't be lighted, and is scrapped ahead of time and causes waste.
(6) setting to the spark rate or the frequency sweep frequency of lighting a fire can cause electric ballast that the versatility of Different Light (Lamp) is descended.
(7) existing usually traditional high-power half-bridge and full-bridge topology electric ballast are when carrying out resonant inductance Lo design; The core center post must leave very big air gap, causes magnetic core saturated and damage resonance bridge circuit and control circuit to avoid magnetic core at the excessive resonance impulse current in when igniting.The leakage flux that excessive air gap produces can produce very big high-frequency vortex loss in the inductance winding on being wound in the core center post, make the inductance winding temperature rise raise significantly, reduces the reliability of inductance.
(8) in order to reduce the high-frequency vortex loss in the inductance winding, reduce the inductance winding temperature rise, winding must use nearly 100 strands multiply yarn envelope curve coiling, makes the cost of resonant inductance increase greatly.
(9) because square being directly proportional of the operating frequency of high-frequency vortex loss and inductance in the inductance winding; So in order to reduce the influence of high-frequency vortex loss to the inductance winding temperature rise; The operating frequency of existing traditional high-power half-bridge and full-bridge topology electric ballast is difficult to improve, and volume is difficult to reduce.
In view of this, special proposition the present invention.
Summary of the invention
The technical problem that the present invention will solve is to overcome the deficiency of prior art; Provide a kind of when igniting as transformer; The magnetic integrated transformer is used as the high-frequency and high-voltage electronic ballast of sodium lamp that the electric current that flows through light source is carried out the inductance of Current limited Control in the igniting back, has mainly solved the problem that is difficult to balance optimizing between the high-tension ignition of existing great-power electronic ballast circuit, current limliting work and the operating frequency three.
The invention still further relates to the electric ballast that uses above-mentioned transformer.
For solving the problems of the technologies described above, the present invention adopts the basic design of technical scheme to be:
A kind of high-frequency and high-voltage electronic ballast of sodium lamp is used the magnetic integrated transformer, comprises magnetic core, and said magnetic core comprises
Newel, said newel comprise two parts up and down separately, and the space between two parts forms the magnetic core air gap up and down; One igniting winding technique is arranged on the top or lower part of newel, this igniting winding is the former limit winding of transformer;
And two lateral columns, two lateral column branches are positioned at the both sides of said newel, and two lateral columns link to each other and constitute a big loop configuration, and centre and two lateral columns that said newel is connected said big loop configuration form two little loop configuration respectively; Difference coiling first winding and second winding on two lateral columns; The end of the same name of first winding and second winding links to each other as the secondary winding of transformer, and the coiling mode of first winding and second winding need satisfy them and in said big loop configuration, form clockwise and counterclockwise reciprocal toroidal magnetic field.
Preferably, the space of said newel is in the centre of newel.
A kind of high-frequency and high-voltage electronic ballast of sodium lamp; Comprise that prime circuit of power factor correction, half-bridge circuit, high-frequency high-power high-pressure sodium lamp, high-frequency and high-voltage electronic ballast of sodium lamp use the magnetic integrated transformer; Said high-frequency and high-voltage electronic ballast of sodium lamp comprises magnetic core with the magnetic integrated transformer, and said magnetic core comprises
Newel, said newel comprise two parts up and down separately, and the space between two parts forms the magnetic core air gap up and down; One igniting winding technique is arranged on the top or lower part of newel, this igniting winding is the former limit winding of transformer;
And two lateral columns, two lateral column branches are positioned at the both sides of said newel, and two lateral columns link to each other and constitute a big loop configuration, and centre and two lateral columns that said newel is connected said big loop configuration form two little loop configuration respectively; Difference coiling first winding and second winding on two lateral columns; The end of the same name of first winding and second winding links to each other as the secondary winding of transformer, and the coiling mode of first winding and second winding need satisfy them and in said big loop configuration, form clockwise and counterclockwise reciprocal toroidal magnetic field;
The output of said prime circuit of power factor correction connects the input of said half-bridge circuit; Said half-bridge circuit comprises two transistors and two electric capacity; The high-frequency and high-voltage electronic ballast of sodium lamp is with end of magnetic integrated transformer secondary winding and the tie point that is connected two electric capacity after the high-frequency high-power high-pressure sodium lamp is connected, and the other end of secondary winding is connected two transistorized tie point places of half-bridge circuit.
A kind of high-frequency and high-voltage electronic ballast of sodium lamp; Comprise that prime circuit of power factor correction, full-bridge circuit, the big merit high-pressure sodium lamp of high frequency, high-frequency and high-voltage electronic ballast of sodium lamp use the magnetic integrated transformer; Said high-frequency and high-voltage electronic ballast of sodium lamp comprises magnetic core with the magnetic integrated transformer, and said magnetic core comprises
Newel, said newel comprise two parts up and down separately, and the space between two parts forms the magnetic core air gap up and down; One igniting winding technique is arranged on the top or lower part of newel, this igniting winding is the former limit winding of transformer;
And two lateral columns, two lateral column branches are positioned at the both sides of said newel, and two lateral columns link to each other and constitute a big loop configuration, and centre and two lateral columns that said newel is connected said big loop configuration form two little loop configuration respectively; Difference coiling first winding and second winding on two lateral columns; The end of the same name of first winding and second winding links to each other as the secondary winding of transformer, and the coiling mode of first winding and second winding need satisfy them and in said big loop configuration, form clockwise and counterclockwise reciprocal toroidal magnetic field;
The output of said prime circuit of power factor correction connects the input of said full-bridge circuit; The high-frequency and high-voltage electronic ballast of sodium lamp is with an end of magnetic integrated transformer secondary winding and two transistorized tie points that are connected full-bridge circuit after the high-frequency high-power high-pressure sodium lamp is connected, and the other end of secondary winding is connected two other transistorized tie point place of full-bridge circuit.
For above-mentioned ballast, preferred, said transistor is a power field effect pipe.
For above-mentioned ballast, preferred, said transistor is a diode.
After adopting technique scheme, the present invention compared with prior art has following beneficial effect:
(1) solved the design problem that is difficult to balance optimizing between circuit of electronic ballast high-tension ignition, current limliting work and the operating frequency three of existing high-power high voltage sodium vapor lamp (HPS).
Resonance current when (2) eliminating light source (Lamp) igniting impacts, and reduces the stress requirement to full-bridge or half-bridge bridge circuit main power device, when reducing bridge circuit power device cost, improves the functional reliability of great-power electronic ballast.
(3) make the operating frequency of electric ballast take into account high-tension ignition and two operating states of Current limited Control no longer simultaneously, can design at suitable Frequency point according to the operating frequency of light source requirements with electric ballast.
(4) eliminate the high-frequency vortex loss that produces in the resonant inductance winding, do not re-use expensive multiply yarn envelope curve.
(5) reduce required precision, reduce the cost of raw material resonance electronic devices and components in the ballast.
(6) further reduce the volume of ballast, improve the operating efficiency of ballast.
(7) simplify circuit design, shortening research and development of products cycle.
Be described in further detail below in conjunction with the accompanying drawing specific embodiments of the invention.
Description of drawings
Fig. 1 is the circuit diagram of the high-power half-bridge topology of traditional resonant mode electric ballast;
Amplitude-frequency characteristic figure when Fig. 2 is the igniting of traditional resonant mode electric ballast;
Amplitude-frequency characteristic figure when Fig. 3 is the work of conventional electronic ballast current limliting;
Fig. 4 is the structure chart of high-frequency and high-voltage electronic ballast of sodium lamp of the present invention with the magnetic integrated transformer;
Fig. 5 is the working state figure of high-frequency and high-voltage electronic ballast of sodium lamp of the present invention when lighting a fire with the magnetic integrated transformer;
Fig. 6 is the equivalent electric circuit of high-frequency and high-voltage electronic ballast of sodium lamp of the present invention when lighting a fire with the magnetic integrated transformer;
Fig. 7 is the working state figure of high-frequency and high-voltage electronic ballast of sodium lamp of the present invention during with magnetic integrated transformer current limliting;
Fig. 8 is the equivalent circuit diagram of high-frequency and high-voltage electronic ballast of sodium lamp of the present invention during with magnetic integrated transformer current limliting;
Fig. 9 is to use the circuit diagram of the half-bridge electronic ballast of above-mentioned transformer;
Figure 10 is to use the circuit diagram of the full-bridge electric ballast of above-mentioned transformer.
Embodiment
As shown in Figure 4, the present invention is that a kind of high-frequency and high-voltage electronic ballast of sodium lamp is used the magnetic integrated transformer, comprises magnetic core 1, and said magnetic core 1 comprises
And two lateral columns; Be respectively left side post 4 and right side post 5; Two lateral column branches are positioned at the both sides of said newel 2; Two lateral columns link to each other and constitute a big loop configuration 6, and the centre that said newel 2 is connected said big loop configuration 6 and two lateral columns form the little loop configuration in two little loop configuration-left sides and the little loop configuration on right side (promptly
magnetic circuit space of laying respectively at) at the back respectively; On left side post 4, be wound with the first winding N1; Be wound with the second winding N2 on the right side post 5; The end of the same name of the first winding N1 and the second winding N2 links to each other as the secondary winding of transformer, and the coiling mode of the first winding N1 and the second winding N2 need satisfy them and in said big loop configuration 6, form clockwise and counterclockwise reciprocal toroidal magnetic field.
Operation principle is:
Electric ballast when high-pressure sodium lamp is lighted a fire as a step-up transformer, n
Ig<n1+n2, n
IgBe igniting winding N
IgThe number of turn, the number of turn of the n1 first winding N1, n2 is the number of turn of the second winding N2.
During light source (Lamp) igniting, the operating state of transformer is as shown in Figure 5.By igniting winding N
IgThe magnetic flux that produces
Flow through the first winding N respectively
1With the second winding N
2The magnetic circuit at place.Because the first winding N
1With the second winding N
2Two ends of the same name link to each other, this moment, the transformer equivalence was that a former limit umber of turn is n
Ig, the secondary umber of turn is (n
1+ n
2) transformer, as shown in Figure 6.
At this moment, when at igniting winding N
IgTwo ends input amplitude is V
IgIgnition voltage, at the first winding N
1The A end and the second winding N
2B end between will obtain an amplitude and be (N
1+ N
2) * V
Ig/ N
IgHigh pressure, be used for a bright light source (Lamp).
After accomplishing, light source (Lamp) igniting gets into the current limliting mode of operation:
The operating state of transformer is as shown in Figure 7.Winding N lights a fire this moment
IgBe in vacant state, do not participate in the current limliting mode of operation of magnetic integrated transformer.
The electric current of light source (Lamp) is by the first winding N
1A end flow into, flow out from the B end of the second winding N2.The magnetic flux that the first winding N1 and the second winding N2 produce in magnetic core is respectively
and in the opposite direction, and promptly magnetic flux
is cancelled out each other in magnetic circuit.This moment, the equivalence of magnetic integrated transformer was that a umber of turn is (N
1-N
2) inductance, as shown in Figure 8.
The present invention has following advantage:
(1) solved the design problem that is difficult to balance optimizing between circuit of electronic ballast high-tension ignition, current limliting work and the operating frequency three of existing high-power high voltage sodium vapor lamp (HPS).
Resonance current when (2) eliminating light source (Lamp) igniting impacts, and reduces the stress requirement to full-bridge or half-bridge bridge circuit main power device, when reducing bridge circuit power device cost, improves the functional reliability of great-power electronic ballast.
(3) make the operating frequency of electric ballast take into account high-tension ignition and two operating states of Current limited Control no longer simultaneously, can design at suitable Frequency point according to the operating frequency of light source requirements with electric ballast.
(4) eliminate the high-frequency vortex loss that produces in the resonant inductance winding, do not re-use expensive multiply yarn envelope curve.
(5) reduce required precision, reduce the cost of raw material resonance electronic devices and components in the ballast.
(6) further reduce the volume of ballast, improve the operating efficiency of ballast.
(7) simplify circuit design, shortening research and development of products cycle.
The present invention is through the integrated mode of magnetic; With the high-tension ignition and the current limliting job analysis of electric ballast is two separate state of a controls, has solved the design challenges that is difficult to balance optimizing between the high-tension ignition of existing great-power electronic ballast circuit, current limliting work and the operating frequency three.Owing to adopted the disresonance mode of operation, greatly reduce the stress requirement of circuit to full-bridge or half-bridge bridge circuit main power device, when reducing bridge circuit power device cost, significantly improved the reliability of great-power electronic ballast.
The present invention need not take into account high-tension ignition and two operating states of permanent power control simultaneously to the selection of electric ballast operating frequency; Can be according to light source requirements; The design of the operating frequency of electric ballast at suitable Frequency point, is particularly required high frequency (> 100KHz) high-power high voltage sodium vapor lamp (HPS) light source of work.Further reduce the volume of ballast, improve the operating efficiency of electric ballast.
In addition; The first winding N1, the second winding N2 are wound on respectively on two lateral columns; The magnetic core air gap has effectively avoided in the inductance winding, producing the problem of high-frequency vortex loss on the newel 2 of magnetic core, reduced the temperature of current-limiting inductance; Reduce the cost of current-limiting inductance, improved the reliability of inductance simultaneously.
Adjust the first winding N1, the second winding N2, igniting winding N
IgAnd V
IgParameter, the voltage and the energy of the some bright light source (Lamp) that can obtain needing.
Adjust the number of turn and the magnetic core air gap of the first winding N1, the second winding N2, can obtain the equivalent electric sensibility reciprocal that electric ballast needs when the current limliting mode of operation is worked.
With reference to Fig. 9; The invention also discloses a kind of high-frequency and high-voltage electronic ballast of sodium lamp, comprise that prime circuit of power factor correction (the stable DC voltage that is provided for the prime circuit of power factor correction between VDC+ and the GND), half-bridge circuit, high-frequency high-power high-pressure sodium lamp Lamp and high-frequency and high-voltage electronic ballast of sodium lamp are with magnetic integrated transformer T1.
Said high-frequency and high-voltage electronic ballast of sodium lamp comprises magnetic core 1 with magnetic integrated transformer T1, and said magnetic core 1 comprises
And two lateral columns; Left side post 4 and right side post 5; Two lateral column branches are positioned at the both sides of said newel 2; Two lateral columns link to each other and constitute a big loop configuration 6, and the centre that said newel 2 is connected said big loop configuration 6 and two lateral columns form the little loop configuration in two little loop configuration-left sides and the little loop configuration on right side (promptly
magnetic circuit space of laying respectively at) at the back respectively; On left side post 4, be wound with the first winding N1; Be wound with the second winding N2 on the right side post 5; The end of the same name of the first winding N1 and the second winding N2 links to each other as the secondary winding of transformer, and the coiling mode of the first winding N1 and the second winding N2 need satisfy them and in said big loop configuration 6, form clockwise and counterclockwise reciprocal toroidal magnetic field.
Said half-bridge circuit comprises two transistors and two electric capacity.
Fig. 9 has provided a kind of physical circuit of this kind ballast, and said half-bridge circuit comprises the first FET Q1, the second FET Q2, first capacitor C 1 and second capacitor C 2.
The output of said prime circuit of power factor correction connects the input of said half-bridge circuit; One end of the secondary winding of high-frequency and high-voltage electronic ballast of sodium lamp and the tie point that is connected first capacitor C 1 and second capacitor C 2 after high-frequency high-power high-pressure sodium lamp Lamp connects, the other end of secondary winding is connected the tie point place of the first FET Q1 and the second FET Q2 of half-bridge circuit.First capacitor C 1, second capacitor C 2, the first FET Q1 and the second FET Q2 form half-bridge circuit.
Another kind of high-frequency and high-voltage electronic ballast of sodium lamp; With reference to Figure 10, comprise that prime circuit of power factor correction (the stable DC voltage that is provided for the prime circuit of power factor correction between VDC+ and the GND), full-bridge circuit, high-frequency high-power high-pressure sodium lamp Lamp and high-frequency and high-voltage electronic ballast of sodium lamp are with magnetic integrated transformer T1.
Said high-frequency and high-voltage electronic ballast of sodium lamp comprises magnetic core 1 with magnetic integrated transformer T1, and said magnetic core 1 comprises
And two lateral columns; Left side post 4 and right side post 5; Two lateral column branches are positioned at the both sides of said newel 2; Two lateral columns link to each other and constitute a big loop configuration 6, and the centre that said newel 2 is connected said big loop configuration 6 and two lateral columns form the little loop configuration in two little loop configuration-left sides and the little loop configuration on right side (promptly
magnetic circuit space of laying respectively at) at the back respectively; On left side post 4, be wound with the first winding N1; Be wound with the second winding N2 on the post 5 of left side; The end of the same name of the first winding N1 and the second winding N2 links to each other as the secondary winding of transformer, and the coiling mode of the first winding N1 and the second winding N2 need satisfy them and in said big loop configuration 6, form clockwise and counterclockwise reciprocal toroidal magnetic field.
Said full-bridge circuit comprises four transistors.Figure 10 has provided a kind of physical circuit figure of this electric ballast, and said full-bridge circuit comprises the first FET Q1, the second FET Q2, the 3rd FET Q3 and the 4th FET Q4.
The output of said prime circuit of power factor correction connects the input of said full-bridge circuit; One end of the secondary winding of high-frequency and high-voltage electronic ballast of sodium lamp be connected first FET Q1 of full-bridge circuit and the tie point of the second FET Q2 after high-frequency high-power high-pressure sodium lamp Lamp connects, the other end of secondary winding is connected the tie point place of the 3rd FET Q3 and the 4th FET Q4 of full-bridge circuit.
The stable DC voltage that the prime circuit of power factor correction is provided in the electric ballast of above-mentioned half-bridge and full-bridge is for full-bridge or half-bridge circuit provide energy.Through half-bridge or full-bridge circuit direct current is transformed into alternating current then, and boosts through above-mentioned transformer and to produce the ignition voltage that light source (Lamp) needs.And after accomplishing after the igniting, get into the current limliting mode of operation.Above-mentionedly set forth in detail, repeated no more.
The advantage of this electric ballast was set forth in above-mentioned transformer in detail, no longer repeated once more.
Preferably, the FET of above-mentioned half-bridge circuit and full-bridge circuit also can be diode or other transistors.
What be worth explanation is; A kind of first winding N1 and the coiling mode of the second winding N2 on two lateral columns have only been provided in top specific embodiment and the concrete accompanying drawing; In fact, other various meet above-mentioned clockwise and counterclockwise rotating magnetic field around how all in protection scope of the present invention.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (6)
1. a high-frequency and high-voltage electronic ballast of sodium lamp is used the magnetic integrated transformer, comprises magnetic core, it is characterized in that: said magnetic core comprises
Newel, said newel comprise two parts up and down separately, and the space between two parts forms the magnetic core air gap up and down; One igniting winding technique is arranged on the top or lower part of newel, this igniting winding is the former limit winding of transformer;
And two lateral columns, two lateral column branches are positioned at the both sides of said newel, and two lateral columns link to each other and constitute a big loop configuration, and centre and two lateral columns that said newel is connected said big loop configuration form two little loop configuration respectively; Difference coiling first winding and second winding on two lateral columns; The end of the same name of first winding and second winding links to each other as the secondary winding of transformer, and the coiling mode of first winding and second winding need satisfy them and in said big loop configuration, form clockwise and counterclockwise reciprocal toroidal magnetic field.
2. high-frequency and high-voltage electronic ballast of sodium lamp according to claim 1 is used the magnetic integrated transformer, it is characterized in that: the space of said newel is in the centre of newel.
3. high-frequency and high-voltage electronic ballast of sodium lamp; Comprise that prime circuit of power factor correction, half-bridge circuit, high-frequency high-power high-pressure sodium lamp, high-frequency and high-voltage electronic ballast of sodium lamp use the magnetic integrated transformer; Said high-frequency and high-voltage electronic ballast of sodium lamp comprises magnetic core with the magnetic integrated transformer, it is characterized in that: said magnetic core comprises
Newel, said newel comprise two parts up and down separately, and the space between two parts forms the magnetic core air gap up and down; One igniting winding technique is arranged on the top or lower part of newel, this igniting winding is the former limit winding of transformer;
And two lateral columns, two lateral column branches are positioned at the both sides of said newel, and two lateral columns link to each other and constitute a big loop configuration, and centre and two lateral columns that said newel is connected said big loop configuration form two little loop configuration respectively; Difference coiling first winding and second winding on two lateral columns; The end of the same name of first winding and second winding links to each other as the secondary winding of transformer, and the coiling mode of first winding and second winding need satisfy them and in said big loop configuration, form clockwise and counterclockwise reciprocal toroidal magnetic field;
The output of said prime circuit of power factor correction connects the input of said half-bridge circuit; Said half-bridge circuit comprises two transistors and two electric capacity; The high-frequency and high-voltage electronic ballast of sodium lamp is with end of magnetic integrated transformer secondary winding and the tie point that is connected two electric capacity after the high-frequency high-power high-pressure sodium lamp is connected, and the other end of secondary winding is connected two transistorized tie point places of half-bridge circuit.
4. high-frequency and high-voltage electronic ballast of sodium lamp; Comprise that prime circuit of power factor correction, full-bridge circuit, the big merit high-pressure sodium lamp of high frequency, high-frequency and high-voltage electronic ballast of sodium lamp use the magnetic integrated transformer; Said high-frequency and high-voltage electronic ballast of sodium lamp comprises magnetic core with the magnetic integrated transformer, it is characterized in that: said magnetic core comprises
Newel, said newel comprise two parts up and down separately, and the space between two parts forms the magnetic core air gap up and down; One igniting winding technique is arranged on the top or lower part of newel, this igniting winding is the former limit winding of transformer;
And two lateral columns, two lateral column branches are positioned at the both sides of said newel, and two lateral columns link to each other and constitute a big loop configuration, and centre and two lateral columns that said newel is connected said big loop configuration form two little loop configuration respectively; Difference coiling first winding and second winding on two lateral columns; The end of the same name of first winding and second winding links to each other as the secondary winding of transformer, and the coiling mode of first winding and second winding need satisfy them and in said big loop configuration, form clockwise and counterclockwise reciprocal toroidal magnetic field;
The output of said prime circuit of power factor correction connects the input of said full-bridge circuit; The high-frequency and high-voltage electronic ballast of sodium lamp is with an end of magnetic integrated transformer secondary winding and two transistorized tie points that are connected full-bridge circuit after the high-frequency high-power high-pressure sodium lamp is connected, and the other end of secondary winding is connected two other transistorized tie point place of full-bridge circuit.
5. according to claim 3 or 4 described high-frequency and high-voltage electronic ballast of sodium lamp, it is characterized in that: said transistor is a power field effect pipe.
6. according to claim 3 or 4 described high-frequency and high-voltage electronic ballast of sodium lamp, it is characterized in that: said transistor is a diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102514903A CN102769984A (en) | 2012-07-19 | 2012-07-19 | Magnetic integrated transformer for high-frequency high-pressure sodium lamp electronic ballast and ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102514903A CN102769984A (en) | 2012-07-19 | 2012-07-19 | Magnetic integrated transformer for high-frequency high-pressure sodium lamp electronic ballast and ballast |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109074108A (en) * | 2016-08-05 | 2018-12-21 | 法拉达伊格里德有限公司 | Electric power supply system and process |
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| CN102197446A (en) * | 2008-10-29 | 2011-09-21 | 通用电气公司 | Inductive and capacitive components integration structure |
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| CN202697008U (en) * | 2012-07-19 | 2013-01-23 | 北京源点新智科技有限公司 | Integrated magnetics transformer for high frequency high voltage sodium lamp electronic ballast, and ballast |
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| CN101257255B (en) * | 2007-12-25 | 2011-10-12 | 南京航空航天大学 | Topological magnetic integrated converter suitable for LLC resonance series |
| CN201266888Y (en) * | 2008-10-15 | 2009-07-01 | 北京新雷能有限责任公司 | DC converter integrated with magnetic component |
| CN102197446A (en) * | 2008-10-29 | 2011-09-21 | 通用电气公司 | Inductive and capacitive components integration structure |
| CN202697008U (en) * | 2012-07-19 | 2013-01-23 | 北京源点新智科技有限公司 | Integrated magnetics transformer for high frequency high voltage sodium lamp electronic ballast, and ballast |
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| CN109074108A (en) * | 2016-08-05 | 2018-12-21 | 法拉达伊格里德有限公司 | Electric power supply system and process |
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Application publication date: 20121107 |