CN202697008U - Integrated magnetics transformer for high frequency high voltage sodium lamp electronic ballast, and ballast - Google Patents
Integrated magnetics transformer for high frequency high voltage sodium lamp electronic ballast, and ballast Download PDFInfo
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- CN202697008U CN202697008U CN201220352264XU CN201220352264U CN202697008U CN 202697008 U CN202697008 U CN 202697008U CN 201220352264X U CN201220352264X U CN 201220352264XU CN 201220352264 U CN201220352264 U CN 201220352264U CN 202697008 U CN202697008 U CN 202697008U
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Abstract
The utility model provides an integrated magnetics transformer for a high frequency high voltage sodium lamp electronic ballast. A magnetic core of the integrated magnetics transformer comprises a central post and side posts on two sides of the central post. The central post comprises an upper part and a lower part, and a magnetic core gap is formed between the upper part and the lower part; an ignition winding is wound on the upper part or the lower part of the central post to form a primary winding of the transformer; the two side posts are positioned on the two sides of the central post respectively and are connected to form a big annular structure, the central post is connected to the middle of the big annular structure, and two small annular structures are formed by the central post and the two side posts respectively; and a first winding and a second winding are respectively wound on the two side posts, the dotted terminals of the first winding and the second winding are connected to serve as a secondary winding of the transformer, and the first winding and the second winding form clockwise and anticlockwise annular magnetic fields in the big annular structure. The integrated magnetics transformer can serve as a transformer when igniting, and can also serve as a current limiting control inductor after igniting, so that high voltage ignition, current limiting operation and working frequency can be balanced and optimized. The utility model also provides the ballast using the transformer.
Description
Technical field
The utility model relate to a kind of when igniting as transformer, after the igniting 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 lamp (HPS) has been widely used in the fields such as street lamp, operating mode illumination, plant light compensation as the traditional lighting light source, the high-power high voltage sodium lamp of 250W to 1000W (HPS) light source 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.
Iterative method along with energy-saving and emission-reduction and green illumination, the electric ballast that drives high-power high voltage sodium lamp (HPS) is energy-efficient with it, volume is little, lightweight, particularly significantly prolong the clear superiorities such as light source useful life, more and more replace traditional Inductive ballast.
So far the electric ballast of high-power high voltage sodium 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.
Have the operation principle of traditional high-power half-bridge of resonant mode and full-bridge topology electric ballast now as shown in Figure 1-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 consists of voltage-type series parallel resonance circuit.For different light source (Lamp) operating state (light and extinguish), the operating frequency fs that adjusts bridge circuit controls 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 large, usually is far longer than 100;
(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 as seen, 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 as seen, for the rated operational voltage (Operate Line) that reaches light source (Lamp), corresponding circuit work frequency (fs) is generally (0.2 ~ 0.4) resonance angular frequency (fo) doubly far below the resonance angular frequency (fo) of resonant circuit.
By the above explanation of characteristics and current limliting work characteristics during to the igniting of traditional resonant mode electric ballast, as seen the igniting of existing high-power half-bridge and full-bridge topology electric ballast and light after the current limliting operating state be associated with resonant inductance Lo, the resonant capacitance Co of resonant circuit, the operating frequency of ballast and the state of light source (Lamp) simultaneously, 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,
Resonance Circuit is operated in very high Q state of value, can produce sizable resonance current in the resonant circuit, and this resonance current will cause to the device for power switching in the bridge circuit very large stress impact.
(2) device for power switching in the bridge circuit damages when igniting, must select the device of large safety operation area, causes the increase of circuit cost.
(3) excessive resonance current in the bridge circuit usually need to be done accurately spark rate or igniting frequency sweep frequency and set; Must cooperate in addition overvoltage protection, the overcurrent protection of resonance bridge circuit, so that control circuit is 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 impact 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 spark rate or igniting frequency sweep frequency old light source Lamp can't be lighted, and is scrapped ahead of time and causes waste.
(6) can cause electric ballast that the versatility of Different Light (Lamp) is descended to the setting of spark rate or igniting frequency sweep frequency.
(7) usually have traditional high-power half-bridge and full-bridge topology electric ballast now when carrying out resonant inductance Lo design, the core center post must leave very large 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 large high-frequency vortex loss in the inductor winding on being wound in the core center post, so that the inductor winding temperature rise significantly raises, reduces the reliability of inductance.
(8) in order to reduce the high-frequency vortex loss in the inductor winding, reduce the inductor winding temperature rise, winding must use nearly 100 strands multiply yarn envelope curve coiling, so that the cost of resonant inductance increases greatly.
(9) because square being directly proportional of the operating frequency of high-frequency vortex loss and inductance in the inductor winding, so in order to reduce the high-frequency vortex loss to the impact of inductor 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 the utility model that proposes.
The utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, provide a kind of when igniting as transformer, as the high-frequency and high-voltage electronic ballast of sodium lamp magnetic integrated transformer that the electric current that flows through light source is carried out the inductance of Current limited Control, 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 after the igniting.
The utility model also relates to the electric ballast that uses above-mentioned transformer.
For solving the problems of the technologies described above, the utility model adopts the basic conception of technical scheme to be:
A kind of high-frequency and high-voltage electronic ballast of sodium lamp magnetic integrated transformer comprises magnetic core, and described magnetic core comprises
Newel, described newel comprise up and down two parts separately, and the space between two parts forms magnetic core air gap up and down; One igniting winding technique is arranged on the upper part or lower part of newel, this igniting winding is the former limit winding of transformer;
And two lateral columns, two lateral columns divide the both sides that are positioned at described newel, and two lateral columns link to each other and consist of a large loop configuration, and centre and two lateral columns that described newel is connected to described large loop configuration form respectively two little loop configuration; At two lateral columns difference coiling the first windings and the second winding, the Same Name of Ends of the first winding and the second winding links to each other as the secondary winding of transformer, and the winding method of the first winding and the second winding need satisfy them and form clockwise and counterclockwise reciprocal toroidal magnetic field in described large loop configuration.
Preferably, the space of described newel is in the centre of newel.
A kind of high-frequency and high-voltage electronic ballast of sodium lamp, comprise 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 magnetic integrated transformer, described high-frequency and high-voltage electronic ballast of sodium lamp comprises magnetic core with the magnetic integrated transformer, and described magnetic core comprises
Newel, described newel comprise up and down two parts separately, and the space between two parts forms magnetic core air gap up and down; One igniting winding technique is arranged on the upper part or lower part of newel, this igniting winding is the former limit winding of transformer;
And two lateral columns, two lateral columns divide the both sides that are positioned at described newel, and two lateral columns link to each other and consist of a large loop configuration, and centre and two lateral columns that described newel is connected to described large loop configuration form respectively two little loop configuration; At two lateral columns difference coiling the first windings and the second winding, the Same Name of Ends of the first winding and the second winding links to each other as the secondary winding of transformer, and the winding method of the first winding and the second winding need satisfy them and form clockwise and counterclockwise reciprocal toroidal magnetic field in described large loop configuration;
The output of described prime circuit of power factor correction connects the input of described half-bridge circuit, described half-bridge circuit comprises two transistors and two electric capacity, the high-frequency and high-voltage electronic ballast of sodium lamp is with an end of magnetic integrated transformer secondary winding and the tie point that is connected to two electric capacity after the high-frequency high-power high-pressure sodium lamp is connected, and the other end of secondary winding is connected to two transistorized tie point places of half-bridge circuit.
A kind of high-frequency and high-voltage electronic ballast of sodium lamp, comprise prime circuit of power factor correction, full-bridge circuit, the large merit high-pressure sodium lamp of high frequency, high-frequency and high-voltage electronic ballast of sodium lamp magnetic integrated transformer, described high-frequency and high-voltage electronic ballast of sodium lamp comprises magnetic core with the magnetic integrated transformer, and described magnetic core comprises
Newel, described newel comprise up and down two parts separately, and the space between two parts forms magnetic core air gap up and down; One igniting winding technique is arranged on the upper part or lower part of newel, this igniting winding is the former limit winding of transformer;
And two lateral columns, two lateral columns divide the both sides that are positioned at described newel, and two lateral columns link to each other and consist of a large loop configuration, and centre and two lateral columns that described newel is connected to described large loop configuration form respectively two little loop configuration; At two lateral columns difference coiling the first windings and the second winding, the Same Name of Ends of the first winding and the second winding links to each other as the secondary winding of transformer, and the winding method of the first winding and the second winding need satisfy them and form clockwise and counterclockwise reciprocal toroidal magnetic field in described large loop configuration;
The output of described prime circuit of power factor correction connects the input of described 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 to full-bridge circuit after the high-frequency high-power high-pressure sodium lamp is connected, and the other end of secondary winding is connected to two other transistorized tie point place of full-bridge circuit.
For above-mentioned ballast, preferred, described transistor is power field effect pipe.
For above-mentioned ballast, preferred, described transistor is diode.
After adopting technique scheme, the utility model 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 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, improves the functional reliability of great-power electronic ballast when reducing bridge circuit power device cost.
(3) make the operating frequency of electric ballast take into account no longer simultaneously high-tension ignition and two operating states of Current limited Control, 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 to resonance electronic devices and components in the ballast, reduce the cost of raw material.
(6) further reduce the volume of ballast, improve the operating efficiency of ballast.
(7) simplify circuit design, shortening research and development of products cycle.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
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 that the utility model high-frequency and high-voltage electronic ballast of sodium lamp is used the magnetic integrated transformer;
Working state figure when Fig. 5 is the igniting of the utility model high-frequency and high-voltage electronic ballast of sodium lamp usefulness magnetic integrated transformer;
Equivalent electric circuit when Fig. 6 is the igniting of the utility model high-frequency and high-voltage electronic ballast of sodium lamp usefulness magnetic integrated transformer;
Working state figure when Fig. 7 is the utility model high-frequency and high-voltage electronic ballast of sodium lamp usefulness magnetic integrated transformer current limliting;
Equivalent circuit diagram when Fig. 8 is the utility model high-frequency and high-voltage electronic ballast of sodium lamp usefulness magnetic integrated transformer current limliting;
Fig. 9 is the circuit diagram that uses the half-bridge electronic ballast of above-mentioned transformer;
Figure 10 is the circuit diagram that uses the full-bridge electric ballast of above-mentioned transformer.
Embodiment
As shown in Figure 4, the utility model is a kind of high-frequency and high-voltage electronic ballast of sodium lamp magnetic integrated transformer, comprises magnetic core 1, and described magnetic core 1 comprises
And two lateral columns, be respectively left side post 4 and right side post 5, two lateral columns divide the both sides that are positioned at described newel 2, two lateral columns link to each other and consist of a large loop configuration 6, and described newel 2 is connected to the centre of described large loop configuration 6 and two lateral columns form respectively the little loop configuration in two little loop configuration-left sides and the little loop configuration on right side (is the back
The magnetic circuit space that lays respectively at); Be wound with the first winding N1 at left side post 4, be wound with the second winding N2 on the right side post 5, the Same Name of Ends of the first winding N1 and the second winding N2 links to each other as the secondary winding of transformer, and the winding method of the first winding N1 and the second winding N2 need satisfy them and form clockwise and counterclockwise reciprocal toroidal magnetic field in described large loop configuration 6.
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 n1 the first winding N1, n2 is the number of turn of the second winding N2.
During light source (Lamp) igniting, the operating state of transformer as shown in Figure 5.By igniting winding N
IgThe magnetic flux that produces
Flow through respectively the first winding N
1With the second winding N
2The magnetic circuit at place.Because the first winding N
1With the second winding N
2Two Same Name of Ends 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
1A 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 some bright light source (Lamp).
After finishing, light source (Lamp) igniting enters the current limliting mode of operation:
The operating state of transformer 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 opposite direction, i.e. magnetic flux
In magnetic circuit, cancel out each other.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 utlity model 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 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, improves the functional reliability of great-power electronic ballast when reducing bridge circuit power device cost.
(3) make the operating frequency of electric ballast take into account no longer simultaneously high-tension ignition and two operating states of Current limited Control, 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 to resonance electronic devices and components in the ballast, reduce the cost of raw material.
(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 utility model is by the integrated mode of magnetic, be two separate state of a controls with high-tension ignition and the current limliting job analysis of electric ballast, 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 circuit to the stress requirement of 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 utility model need not be taken 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 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, magnetic core air gap is on the newel 2 of magnetic core, effectively avoided in inductor winding, producing the problem of high-frequency vortex loss, reduced the temperature of current-limiting inductance, reduce the cost of current-limiting inductance, improved simultaneously the reliability of inductance.
Adjust the first winding N1, the second winding N2, igniting winding N
IgAnd V
IgParameter, can obtain voltage and the energy of the some bright light source (Lamp) that needs.
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, prime circuit of power factor correction (the stable DC voltage that provides 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 magnetic integrated transformer T1 is provided.
Described high-frequency and high-voltage electronic ballast of sodium lamp comprises magnetic core 1 with magnetic integrated transformer T1, and described magnetic core 1 comprises
And two lateral columns, left side post 4 and right side post 5, two lateral columns divide the both sides that are positioned at described newel 2, two lateral columns link to each other and consist of a large loop configuration 6, and described newel 2 is connected to the centre of described large loop configuration 6 and two lateral columns form respectively the little loop configuration in two little loop configuration-left sides and the little loop configuration on right side (is the back
The magnetic circuit space that lays respectively at); Be wound with the first winding N1 at left side post 4, be wound with the second winding N2 on the right side post 5, the Same Name of Ends of the first winding N1 and the second winding N2 links to each other as the secondary winding of transformer, and the winding method of the first winding N1 and the second winding N2 need satisfy them and form clockwise and counterclockwise reciprocal toroidal magnetic field in described large loop configuration 6.
Described half-bridge circuit comprises two transistors and two electric capacity.
Fig. 9 has provided a kind of physical circuit of this kind ballast, and described half-bridge circuit comprises the first field effect transistor Q1, the second field effect transistor Q2, the first capacitor C 1 and the second capacitor C 2.
The output of described prime circuit of power factor correction connects the input of described 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 to the first capacitor C 1 and the second capacitor C 2 after high-frequency high-power high-pressure sodium lamp Lamp connects, the other end of secondary winding is connected to the tie point place of the first field effect transistor Q1 and the second field effect transistor Q2 of half-bridge circuit.The first capacitor C 1, the second capacitor C 2, the first field effect transistor Q1 and the second field effect transistor Q2 form half-bridge circuit.
Another kind of high-frequency and high-voltage electronic ballast of sodium lamp, with reference to Figure 10, comprise prime circuit of power factor correction (the stable DC voltage that provides 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 magnetic integrated transformer T1.
Described high-frequency and high-voltage electronic ballast of sodium lamp comprises magnetic core 1 with magnetic integrated transformer T1, and described magnetic core 1 comprises
And two lateral columns, left side post 4 and right side post 5, two lateral columns divide the both sides that are positioned at described newel 2, two lateral columns link to each other and consist of a large loop configuration 6, and described newel 2 is connected to the centre of described large loop configuration 6 and two lateral columns form respectively the little loop configuration in two little loop configuration-left sides and the little loop configuration on right side (is the back
The magnetic circuit space that lays respectively at); Be wound with the first winding N1 at left side post 4, be wound with the second winding N2 on the post 5 of left side, the Same Name of Ends of the first winding N1 and the second winding N2 links to each other as the secondary winding of transformer, and the winding method of the first winding N1 and the second winding N2 need satisfy them and form clockwise and counterclockwise reciprocal toroidal magnetic field in described large loop configuration 6.
Described full-bridge circuit comprises four transistors.Figure 10 has provided a kind of physical circuit figure of this electric ballast, and described full-bridge circuit comprises the first field effect transistor Q1, the second field effect transistor Q2, the 3rd field effect transistor Q3 and the 4th field effect transistor Q4.
The output of described prime circuit of power factor correction connects the input of described full-bridge circuit, one end of the secondary winding of high-frequency and high-voltage electronic ballast of sodium lamp be connected to the first field effect transistor Q1 of full-bridge circuit and the tie point of the second field effect transistor Q2 after high-frequency high-power high-pressure sodium lamp Lamp connects, the other end of secondary winding is connected to the tie point place of the 3rd field effect transistor Q3 and the 4th field effect transistor Q4 of full-bridge circuit.
The stable DC voltage that the prime circuit of power factor correction provides in the electric ballast of above-mentioned half-bridge and full-bridge is for full-bridge or half-bridge circuit provide energy.Then through half-bridge or full-bridge circuit direct current is transformed into alternating current, and boosts through above-mentioned transformer and to produce the ignition voltage that light source (Lamp) needs.And after finishing after the igniting, enter the current limliting mode of operation.Above-mentionedly elaborated, repeated no more.
The advantage of this electric ballast elaborated in above-mentioned transformer, again no longer repeated.
Preferably, the field effect transistor of above-mentioned half-bridge circuit and full-bridge circuit also can be diode or other transistors.
What deserves to be explained is; a kind of the first winding N1 and the winding method 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 range of the present utility model.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (6)
1. a high-frequency and high-voltage electronic ballast of sodium lamp magnetic integrated transformer comprises magnetic core, and it is characterized in that: described magnetic core comprises
Newel, described newel comprise up and down two parts separately, and the space between two parts forms magnetic core air gap up and down; One igniting winding technique is arranged on the upper part or lower part of newel, this igniting winding is the former limit winding of transformer;
And two lateral columns, two lateral columns divide the both sides that are positioned at described newel, and two lateral columns link to each other and consist of a large loop configuration, and centre and two lateral columns that described newel is connected to described large loop configuration form respectively two little loop configuration; At two lateral columns difference coiling the first windings and the second winding, the Same Name of Ends of the first winding and the second winding links to each other as the secondary winding of transformer, and the winding method of the first winding and the second winding need satisfy them and form clockwise and counterclockwise reciprocal toroidal magnetic field in described large loop configuration.
2. high-frequency and high-voltage electronic ballast of sodium lamp magnetic integrated transformer according to claim 1, it is characterized in that: the space of described newel is in the centre of newel.
3. high-frequency and high-voltage electronic ballast of sodium lamp, comprise 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 magnetic integrated transformer, described high-frequency and high-voltage electronic ballast of sodium lamp comprises magnetic core with the magnetic integrated transformer, it is characterized in that: described magnetic core comprises
Newel, described newel comprise up and down two parts separately, and the space between two parts forms magnetic core air gap up and down; One igniting winding technique is arranged on the upper part or lower part of newel, this igniting winding is the former limit winding of transformer;
And two lateral columns, two lateral columns divide the both sides that are positioned at described newel, and two lateral columns link to each other and consist of a large loop configuration, and centre and two lateral columns that described newel is connected to described large loop configuration form respectively two little loop configuration; At two lateral columns difference coiling the first windings and the second winding, the Same Name of Ends of the first winding and the second winding links to each other as the secondary winding of transformer, and the winding method of the first winding and the second winding need satisfy them and form clockwise and counterclockwise reciprocal toroidal magnetic field in described large loop configuration;
The output of described prime circuit of power factor correction connects the input of described half-bridge circuit, described half-bridge circuit comprises two transistors and two electric capacity, the high-frequency and high-voltage electronic ballast of sodium lamp is with an end of magnetic integrated transformer secondary winding and the tie point that is connected to two electric capacity after the high-frequency high-power high-pressure sodium lamp is connected, and the other end of secondary winding is connected to two transistorized tie point places of half-bridge circuit.
4. high-frequency and high-voltage electronic ballast of sodium lamp, comprise prime circuit of power factor correction, full-bridge circuit, the large merit high-pressure sodium lamp of high frequency, high-frequency and high-voltage electronic ballast of sodium lamp magnetic integrated transformer, described high-frequency and high-voltage electronic ballast of sodium lamp comprises magnetic core with the magnetic integrated transformer, it is characterized in that: described magnetic core comprises
Newel, described newel comprise up and down two parts separately, and the space between two parts forms magnetic core air gap up and down; One igniting winding technique is arranged on the upper part or lower part of newel, this igniting winding is the former limit winding of transformer;
And two lateral columns, two lateral columns divide the both sides that are positioned at described newel, and two lateral columns link to each other and consist of a large loop configuration, and centre and two lateral columns that described newel is connected to described large loop configuration form respectively two little loop configuration; At two lateral columns difference coiling the first windings and the second winding, the Same Name of Ends of the first winding and the second winding links to each other as the secondary winding of transformer, and the winding method of the first winding and the second winding need satisfy them and form clockwise and counterclockwise reciprocal toroidal magnetic field in described large loop configuration;
The output of described prime circuit of power factor correction connects the input of described 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 to full-bridge circuit after the high-frequency high-power high-pressure sodium lamp is connected, and the other end of secondary winding is connected to 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: described transistor is 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: described transistor is diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220352264XU CN202697008U (en) | 2012-07-19 | 2012-07-19 | Integrated magnetics transformer for high frequency high voltage sodium lamp electronic ballast, and ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220352264XU CN202697008U (en) | 2012-07-19 | 2012-07-19 | Integrated magnetics transformer for high frequency high voltage sodium lamp electronic ballast, and ballast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202697008U true CN202697008U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220352264XU Expired - Fee Related CN202697008U (en) | 2012-07-19 | 2012-07-19 | Integrated magnetics transformer for high frequency high voltage sodium lamp electronic ballast, and ballast |
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| CN (1) | CN202697008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769984A (en) * | 2012-07-19 | 2012-11-07 | 北京源点新智科技有限公司 | Magnetic integrated transformer for high-frequency high-pressure sodium lamp electronic ballast and ballast |
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2012
- 2012-07-19 CN CN201220352264XU patent/CN202697008U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769984A (en) * | 2012-07-19 | 2012-11-07 | 北京源点新智科技有限公司 | Magnetic integrated transformer for high-frequency high-pressure sodium lamp electronic ballast and ballast |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20150719 |
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| EXPY | Termination of patent right or utility model |