DE2256006A1 - HIGH VOLTAGE TRANSFORMER ARRANGEMENT FOR HORIZONTAL DEFLECTION - Google Patents

Description

MATSUSHITA ELSCTEEC INDUSTRIAL CO., LTD. Osaka) Japan

Torah

The invention relates to a high voltage transformer arrangement, which is essentially free of fluctuations in the high voltage output and exhibits improved tracking.

Conventional high-voltage transformers are constructed in such a way that that none of the voltage side windings, a high voltage coil in the vicinity of a median potential part or an efi ede voltage coil are arranged, while the high-voltage side windings the high-voltage coil at a sufficient insulating distance are arranged from the low-voltage coil in order to avoid an abrupt potential gradient between these coils and the electrical To ensure insulation of high voltage toile.

In such a known arrangement, the leakage flux therefore runs between the high voltage coil and the low voltage coil through the low voltage coil and then traverses the low voltage coil ti ge η windings of the high voltage coil close to the low

voltage s coil

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voltage coil. As a result, the high voltage coil occurs in the induced voltage at different points between the The first linden of the coil, which is connected to earth, and the second linden of the coil, which is connected to the load, cause strong fluctuations. More accurate In other words, the induced voltage is higher in the high-voltage side windings near the second end and higher in the low-voltage side windings Windings near the first end lower, which is due to the fact that the one running through the low voltage coil Stray flux in the manner described above, the high voltage on the s side Windings of the high voltage coil crossed. This leads to the occurrence of a higher potential on the hochspannungssei term Windings of the high voltage coil and is therefore in view on the isolation undesirable.

Also the form of fluctuation in the high voltage output is in with reference to the high-voltage load current or the high-voltage regulation also unsatisfactory, for example due to a undesirable increase in the stray capacitance and the high voltage au The speed decreases abruptly with an increase in the high-voltage load current.

The invention has for its object a return transformer arrangement to create in which only the smallest possible fluctuations in the high-voltage output in relation to fluctuations during operation of the load current occur.

A further object of the invention is to create a return tran sf ο rm ato rano rdnung that is able to deliver a focus si he voltage of satisfactory tracking.

According to one aspect of the invention, there is provision a flyback transformer arrangement is provided, which has a low-voltage coil, a core, a high voltage coil with a high voltage cable ti gene winding and a low-voltage side winding and a high-voltage rectifier, the magnetic The coupling between the high-voltage side winding of the high-voltage coil and the low-voltage coil is closer than the magnetic coupling between the low-voltage side winding

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- ⁵ - 225S006

the high voltage coil and the median voltage coil.

According to another aspect of the invention, there is provided a flyback transformer assembly comprising a low-voltage coil, a core, a high-voltage coil with a high-voltage side winding and a low-voltage side winding, and a high-voltage rectifier, the high-voltage coil and the high-voltage coil being arranged so as to that the ratio ^ / il between the voltage Y induced in the high-voltage side winding of the high-voltage coil and its number of turns il. is smaller than the ratio \ / ^η _{τ between the voltage V T} induced in the low-voltage side winding of the high-voltage coil and its number of turns η.

Further objects, features and advantages of the invention emerge from the context of the following description of FIG. Details of the invention based on the accompanying drawings. Show in it:

ilg. 1 is an electrical circuit diagram of a basic form of a Horizontal output circuit with a flyback transformer arrangement according to the invention »

Fig. 2 is a schematic sectional view for illustration the structure of an embodiment of the flyback transformer arrangement according to the invention;

3a and 3b are schematic representations for illustration the structural difference between the inventive Flyback transformer assembly and a prior art device of the same type;

Fig. 4 is a graph showing the distribution of the

induced voltage in the Ho chspannungs coil of the invention Flyback transformer arrangement and the known flyback transformer ano rdnungj

Jig. 5 a graphical representation of the between the Ho eh voltage output and the load current in the case of the invention Flyback transformer arrangement and with the known flyback trän s-

fo rmato rano rdnung

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Formation of existing relationships »

6 is a schematic sectional view for illustration the structure of another embodiment of the invention »

Pig. 7a and 7b are schematic representations of two different on circuit modes one in the embodiment the focus provided in FIG. 6 rdio de;

Fig. 8 is a graphical representation for illustrative purposes the better tracking of the focus obtained with the return transf ο rmatorano rdnung of FIG. 6 in comparison to the corresponding Characteristic of a known flyback transformer arrangement this kind"

Fig. 9 shows a schema ti see section for illustration the construction of a further embodiment of the invention, wherein individual parts are shown in block form »

10a and 10b are partially sectioned elevations of two different ones Forms one in another embodiment of the invention used high-voltage coil part »

Fig. 1] is a schematic sectional view of another Coil arrangement, instead of the one shown in FIGS. 10a and 10b Shapes can be used »

12 shows a schematic representation of the switching connection in yet another embodiment of the invention!

15 is a schematic sectional view for illustration the structure of the embodiment of FIGS

Fig. 14 is a graphical representation of the return flow tran sf ο rmatorano around the Fig. 12 existing relationships between the focus voltage and the load current.

Reference is first made to Fig. 1, in which a basic form of a horizontal output circuit is shown, this Circuit a horizontal output transistor 1, a damping diode 2, a deflection yoke coil 5, capacitors 4 and 5 and one with a Picture tube 7 connected return flow transf ο rmatorano rdnung 8 encompasses.

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The return transformer arrangement 8 comprises a high-voltage GIe i cn rich te rdi ο de 9 and a flyback transformer 10, which consists of a core 13, a low voltage coil 11 and a high voltage coil 12 Toe. A terminal 6 of the low voltage coil 11 is connected to a DC power source.

Although in Hg. 1 an example of a circuit arrangement for deriving the horizontal deflection output and a high voltage output from the same transistor, it goes without saying that instead of the circuit arrangement the pig. 1 a different circuit structure can also be provided in which. the deflection output from another transistor is derived.

In 5Ig. 2 shows the structure of an embodiment of the return flow trän sfo rmato rs 10 shown in FIG. 1. In the arrangement of Hg. 2, the low-voltage coil 11 or the primary coil of the return flow trän sfo rmato rs IO is wound onto a bobbin 15, which is attached to the leg of the core. 13 is worn. The high voltage s coil 12 or the secondary coil of the flyback transformer 10 is wound onto a bobbin I4 which spans the bobbin 15 in a coaxial arrangement. The high-voltage coil 12 consists of a plurality of windings 12a, 12b, ... 12m and 12n, the rear one in the other ge switched ¹ . At the in Eg. 2, the windings near the winding 12a represent the low-voltage side windings of the high-voltage coil 12 and the windings near the winding 12n represent the high-voltage side windings of the high-voltage coil 12. The core I3 consists of two parts that meet at a joint 16. Reference number 17 denotes the grounded or first end of the high voltage coil 12.

An important feature of the invention lies in the fact that the Mederspannungsspule 11 close to the high tension is ti ge η Y / winding the Ho chspannungs coil 12 is arranged, as can be seen from FIG. This arrangement is fundamentally different from that generally provided in known flyback transformers arrangement. In the case of the return transfer conveyors known from the prior art

_N ma goals η

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are the low-voltage side windings of the high-voltage

the/

voltage coil is provided in a position adjacent to the low potential or low voltage coil, as already mentioned became .

On the operating characteristics of the return flow according to the invention transformer arrangement, which therefore has this structural difference, will be discussed in more detail with reference to FIGS. 5a and 3b. In PLg. 3a is the structure of the invention in a schematic form Flyback transformer assembly shown while it is in Fig. 3b by a schematic representation of the structure of a known flyback transformer arrangement is in which a coil arrangement as provided above. With the well-known Flyback transformer assembly is a high voltage coil 18 with a low-voltage side winding 18a and a high-voltage side Winding 18n magnetically coupled to a low voltage coil 19 in the manner as shown in Mg. 3h is. In Fig. 3a and 3b, the main magnetic flux 20 is indicated by dashed lines Lines indicated, while the leakage flux is indicated by a dash-dotted line. With both return lines watery rmato rano rounds are the low voltage coil as well as the High-voltage coil completely penetrated by the main magnetic flux 20. However, in the case of FIG. 3b, the leakage flux penetrates the low-voltage side Windings of the high-voltage coil, in the case of FIG. 3a, however, the high-voltage side η windings of the high-voltage coil even if the amount of the leakage flux 21 is only very small compared to the main magnetic flux 20. Furthermore, the High-voltage coil and the never of the voltage coil within the scope of the invention arranged so that between the ratio of in the high-voltage side Windings of the high-voltage coil induced voltage of V "volts to its number of turns n ^ and the ratio that in the low-voltage side windings of the high-voltage coil induced voltage of V volts to its number of turns η

Jj L

the relationship

is applicable. Thanks to the above arrangement, there is a clear difference

ζwi see

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between the distribution of the high-voltage coil in the invention Flyback transformer arrangement on the one hand and the known flyback transformer arrangement on the other hand Snension, like this from Eg. 4 emerges. The solid line in Pig.4 represents the distribution of the suction transformer arrangement according to the invention induced voltage or by plotting the amount of voltage induced in each turn of the high-voltage coil obtained voltage, while the dashed line shows the distribution of the induced voltage in the known flyback transformer arrangement represents. The dash-dotted line in FIG. 4 represents the mean value and such a division of the induced voltage results in a device such as a power transformer where the leakage flux is negligible is.

Lie solid curve in Fig. 5 indicates the change in the High voltage output versus the high voltage load current or the high voltage regulation in the flyback transformer according to the invention ano rdnung again, while the dashed curve shows the high-voltage regulation in the known reverse flow transformer arrangement designated. From lies 5 clearly shows that the undesirable Fluctuations in the high voltage output "in the inventive Flyback transformer arrangement compared to the known flyback transformer arrangement are noticeably reduced.

Pig. 6 shows another embodiment of the invention, which includes a focusing power source. In the arrangement the pig. 6 is a focusing coil 22 on a bobbin 23 wound on the leg of a core 13 in. A position is mounted, in which the degree of magnetic coupling between this coil and a low voltage coil 11 is lower than that between a Ho chspannungs coil 12 and the Mederspannungsspule 11. The focusing coil 22 can be conductive with the high-voltage coil 12 and with a focusing diode 24 in such a -l / ei se be connected, like this, in Pig. 7a and 7b, respectively. Jjn Pail of Fig. 7a is the first end of the high voltage coil 12 in terms of alternating current grounded via a capacitor 25, this being the same

in time

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early to smooth the focus si he voltage is used, which is above the focus coil 22 appears. The arrangement shown in Fig. 7b is the same as that of an arrangement in which a focusing power source tapped from a central point of the high-voltage coil 12 will. The tracking of the focus voltage obtained with the flyback transformer arrangement shown in FIG. 6 is shown in FIG. 8 reproduced and for comparison with that of a known flyback transformer arrangement contrasted with this type. In Fig. 8 denote the strong line, the dash-dotted line and the dashed line shows the tracking to be achieved in the arrangements of FIGS. 7a and 7b or in the known device. The hatched area bounded by thin, solid lines refers to what is necessary to get a good picture Focus voltage range. The term "second end" of the high-voltage coil All in this connection with that connection Designate the connected end at which positive return impulses appear, if the other or the first end of the high voltage coil is grounded. It should be noted that the term "second end" is not to be taken to mean that it is simply that End would be understood that is opposite to the end of the coil, at which the winding process is initiated.

Some methods described below are for increasing the dielectric strength of the flyback transformer assembly according to the invention very effective, especially for increasing dielectric strength between the high-voltage side windings of the High voltage coil and the low voltage coil.

In one of the preferred methods for this purpose, a flyback transformer is used 10, like that shown in FIG. 6, built into a housing 26 together with a high-voltage rectifier diode 9 and a certain amount of insulating oil is poured into the interior of the housing 26 filled as shown in FIG. By filling the insulating oil into the housing 26, the dielectric constant of the interior as it was before filling in the insulating oil is given, can be increased, and the stray capacitance of the high-voltage coil can increase accordingly, making a considerable amount

Fluctuations

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Fluctuations in the working characteristics of the flyback transformer arrangement be evoked. But it has been shown that the high voltage regulation and tracking the focus si he tension of Fluctuations are completely free when the working characteristic the return flow impregnator arrangement in the state of immersion in. the insulating oil is properly regulated. From 51g. 9 is it can be seen that the flyback transformer 10 and the high-voltage rectifier diode 9 are received in the housing 26, the interior of which is filled with the insulating oil 29, the high-voltage output, de.r focus you exit and the rest of the exit and entrance at a high voltage output terminal 27, a focus voltage output terminal 28 as well as the voltage output resp. -Input connection 30 can be removed or fed.

In a second method, a stepped bobbin 31 such as that shown in FIG. 10a or a tapered bobbin is used like that of Fig. 10b for mounting the high-voltage coil in Form of a stair winding, so as to reduce the insulating distance between the high voltage side η windings of the high voltage coil and the Increase the low voltage coil and decrease the stray capacitance of the high voltage coil. In the case of a honeycomb winding, for example On the basis of the same train of thought, an arrangement like that of FIG. 11 can be created in which the high-voltage coil 12 is carried by a bobbin 33, the one shown Has shape. The same thought can also apply to a step winding Find application.

A method for influencing the tracking of the focus si voltage even more precisely will be described with reference to FIG which is a schematic representation of a preferred arrangement of the elements in yet another embodiment of the invention, and with reference to FIG. 13, a A schematic section to explain the structure of the in Fig. 12 shown embodiment. In the arrangement of FIGS 13 is a low voltage coil 11 in a main winding 34 and an auxiliary winding 35 subdivided, which are connected in series, the main and auxiliary windings 34 and 35 of the low voltage coil 11 with the high-voltage side windings of a high

voltage 3 coil

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voltage coil 12 or with a focusing coil 22 magnetically tight are coupled.

This arrangement is advantageous in that the focus coil 22 by the magnetic flux fluctuations of the low-voltage coil 11 is easier to control than if they are less magnetically would be closely coupled to the low voltage coil 11, and because the changes in the focus si he voltage relative to the changes in the High-voltage load currents can be reduced. This mode of action is illustrated graphically in FIG. 14, in which the extended Line the changes in focus safety tension in the case of a subdivision represents the low voltage coil in a main and auxiliary winding and the dashed line the corresponding changes for in the event that the never of the voltage coil is not in these windings is divided.

The flyback transformer arrangement according to the invention offers the following benefits

(l) The flyback transformer assembly creates a high voltage wave sgang, which to a much lesser extent changes in voltage subject.

In the following it is assumed that the internal impedance Z. the changes in the high voltage output of the flyback transformer arrangement represents. This internal impedance Z. results from

Z. = (high voltage output in kilovolt falla I _H _, = O) - (high voltage output in kilovolt if

I = A milliamps) / A megohs

HT

where I denotes the high voltage load current. The value of Internal impedance Z. is kept at 1.2 to 2.5 within the scope of the invention Megohms, while the value of Z. in known flyback transformer arrangements is generally 3 to 3 »5 megohms. So it is clear that the changes in the high voltage output under the Invention can be reduced considerably.

Furthermore, it is common practice to put an element such as a saturable reactor in series in the DC circuit place the horizontal output circuit in a television receiver

provided

3Ü9822 / U8T 6

supplied to control the direct current supply voltage and thereby to stabilize the high voltage outbreak. But the effective Internal impedance even with this method is only about 1.5 "to 2.5 Ms Decrease megohms. In the context of the invention, the effective>.

On the other hand, reduce internal impedance even further without it In this regard, such a steering committee should be established, and if so, one Circuit can be combined with the arrangement according to the invention should, the effective internal impedance could be reduced even further, namely "to about 0.7 Ms 1.7 megohm-.

To reduce the internal impedance of flyback transformer assemblies is usually a so-called! fifth harmonic tuning system provided, for example, from the US patent 3500116 is known, i.e. a system in which a fifth harmonic is superimposed on a fundamental oscillation. The invention is to be compared in the following with a flyback transformer arrangement operating according to such a system.

The one that works according to the lunfte harmonic tuning system Return transform a to rano order is the ratio of the over voltage E /p.- appearing on the high-voltage coil. to the about of the lower tension coil appearing tension S. ,, - ». through the equation

where -ISLz ₁ -V denotes the "number of turns of the high-voltage coil, N / (^ the number of turns of the low-voltage coil, and furthermore where X> O. It is therefore difficult to achieve a sufficiently high output voltage. In the context of the invention, the ratio is _{the voltage E 11} T appearing across the high voltage coil

_{voltage E n} appearing across the low-voltage coil

express where K is the number of turns of the high voltage coil and li_ the Yß.ndungszah.1 of the Biederspannungsspule, "while '<> O. A sufficiently high output can thus be obtained without further ado voltage, but the internal impedance is still sufficient.

gend

3 O 3 B Tl for over 8 1 B

can be reduced.

Also is the operational efficiency of a flyback transformer arrangement bad, in which the fifth harmoni see Ab tuning system is provided, because with the same load a higher Input power is needed as if such a system was not would be provided. Such a problem cannot arise within the scope of the invention.

(2) The flyback transformer arrangement according to the invention capable of a focus si he tension of satisfactory tracking deliver.

With a horizontal output known from the prior art circuit with a transistor as an active element was one particularly high turns ratio between the low voltage coil and the high voltage coil of the flyback transformer. If a Fokussierlei stung is tapped at a middle point of the high-voltage coil of the flyback transformer, it is Tracking the focus is very unsatisfactory, like off Fig »θ can be seen, and such a focusing performance was stungsque lie practically not to be used. When applying the focusing voltage one has therefore usually proceeded so that the high output voltage of the flyback transformer was divided by a resistor. But this system is deficient, among other things afflicted, as the voltage-carrying resistance is very high V / i the status must have value and be sufficiently isolated, with the Circuit design becomes quite complicated, these shortcomings are caused by the invention switched off and a focusing voltage is obtained of satisfactory tracking.

In addition, a system that works with a

Cockcrof t circuit for rectifying and increasing the high voltage output the flyback transformer works, generally the method the supply of the focusing voltage from the cathode of the diode in the first stage served. However, it could be confirmed by experiments that the tracking achievable within the scope of the invention is far better is than with such a system. In the case of the Cockcrof t system, at

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The rectifier, for example, are arranged in three stages in the form of a so-called doubler, the high output voltage E _{q of} the system is through in the unloaded state

¹ O ^{= 2E} HTÜ ^{+ Κ} ΉΤΟ -

given, where E _{wrpn denotes} the output voltage of the flyback transformer in the unloaded state, and E ¹ TTm ₀ ^{denotes the} 'Λ> βΓ oscillating voltage of the output of the flyback transformer ^ in the unloaded condition. The focus safety voltage E _f in the unloaded state is through

v. = Ji
"f 0 HTO

given. The high voltage output E - the system and the focusing voltage E " on the other hand, are in the loaded state

E '
HT

^E f ^{= E} HT

where E _{ffrp denotes} the output voltage of the flyback transformer in the loaded condition and Zi ¹ denotes the tfber oscillation voltage of the output of the flyback transformer in the loaded condition.

However, since

w ¹ E ¹

/ HT

^E HT0

results for the ratio S / E "to E / la (E / E _f ) C (2E _H ^ E. _HT ) / E _HT ]

Tracking the focus safe tension is best when doing the above Ratio is equal to 1. The above ratio, however, tends to deviate greatly from 1, which results in poor tracking.

From the above description in which only two notable Advantages of the invention has been discussed in more detail, it can be seen that the invention is a surprising advance over the known devices of this type is conveyed.

Claims

309822/0816

Claims (2)

Patent claims High voltage transformer provided in a horizontal deflection circuit arrangement, which has a Mederspannungsspule, a core, a High-voltage coil with a high-voltage side winding and a low-voltage side winding and a high-voltage rectifier encompassed, characterized by a narrower nagneti see coupling between the high-voltage side winding of the High-voltage coil (12) and the low-voltage coil (II) than between the low-voltage side winding of the high-voltage coil (12) and the low voltage coil (ll). High-voltage transformer arrangement provided in a horizontal deflection circuit, a low voltage coil, a core and a high voltage coil with a high voltage coil and a winding that is never lower on the voltage side. marked by an arrangement of the high voltage coil (12) and the Low voltage coil (ll) in the sense of setting a value of the Ratio V / il between that in the high-voltage side Winding of the high-voltage coil (12) induced voltage V and whose number of turns il is below the value of the ratio V_ / n between the voltage V _T induced in the low-voltage side winding of the high-voltage coil (12) and whose number of turns n. thus in the sense of V _T / n_> V "/ n. 3 high-voltage transformer arrangement according to claim 1, characterized in that that the relationship between the ratio Z the voltage E "induced in the high-voltage coil (12) to the in the low voltage coil (II) induced voltage E “and the Ratio ^ "/ iL of the number of turns N of the high-voltage coil (12) to the number of turns N of the coil (ll) (Njj / N _l ) is given, where. *> 0. 4. High-voltage transformer arrangement according to claim 1, characterized in that the contact coil (22) is additionally provided and the magnetic coupling between it and the low-voltage coil (ll) is less close than the magnetic coupling between the high-voltage side winding of the high-voltage coil (12) and the low-voltage coil voltage coil (ll). 1 309822/0816 ".is- 22S6006 5. High-voltage transformer arrangement according to claim 4, characterized in that that the first end of the high voltage coil (12) which is close to a ground potential part with the focusing coil (22) over a rectifier element (24) and connected to the ground potential part via a capacitive element (25). 6. High-voltage transformer arrangement according to claim 1, characterized in that that the measurement of the voltage coil (II), the core (13), the high voltage coil. (12) and the high voltage rectifier (9) are received in a housing (26), the remaining parts of the Interior of the housing (26) are filled with insulating oil ". 7. High-voltage transformer arrangement according to claim 1, characterized in that the high-voltage coil (12) either after the Method of the stair winding, the Y / a winding, the 'step winding or another suitable winding method. 8. High-voltage transformer arrangement according to claim 6, characterized in that that the high voltage coil (12) by the method of Trenpen winding, the honeycomb winding, the step winding or after another suitable winding method. 9. high-voltage transformer arrangement according to claim 1, characterized in that that a stepped bobbin (j> l) or a tapered one Coil bobbins (32) are provided, which are a large part Diameter and a part of small diameter, with the high voltage side winding and the never voltage side 7 / wrapping the high-voltage coil (12) on the large diameter having part or on the part having the small diameter of the bobbin (3I; 32) wound are. 10. High voltage transformer arrangement according to Ansoruch 6, characterized in that that a stepped bobbin (3I) or a tapered Coil bobbins (32) are provided which have a part of large diameter and having a small-diameter part, wherein the high-voltage side winding and the low-voltage side winding the high-voltage coil (12) on the large diameter having part or on dec the small diameter to send on 309822/0816
BATH ORIGINAL - 16 having part of the bobbin (51 * 32) are wound. 11. High-voltage transformer arrangement according to claim 7 »characterized in that that a stepped bobbin (31) or a tapered bobbin (32) are provided which have a large diameter part and having a small-diameter portion, wherein the high-voltage side winding and the low-voltage side winding of the high-voltage coil (12) on the part having the large diameter or on the part with the small diameter having part of the bobbin (31; 32) are wound. 12. Ho ch sp annungst ran sforma to rano rdnung according to claim 4 »characterized in that that the Nie de rspannungs coil (11) is divided into a main winding (34) and an auxiliary winding (35) with the high voltage side winding of the high voltage coil (12) respectively are magnetically closely coupled to the focusing coil (22). 13 · High-voltage transformer arrangement according to claim 2, characterized in that the relationship between the ratio E ^^ / E "of the voltage E" induced in the high-voltage coil (12) to the voltage E_ induced in the low-voltage coil (11) and the ratio K _H / N the number of turns N of the coil is given chspannungs Ho (12) to the number of turns N _aer Hiederspannungsspule (II) by e _HT / ^ _C = (l + oO (N _H / N _L) wherein '(> O. 14. High-voltage transformer arrangement according to claim 2, characterized in that a focusing coil (22) is additionally provided, whereby between the ratio "V / n ^, the voltage V ^ induced in the focusing coil (22), to the number of turns n" and the ratio Y / n is the voltage Y induced in the high-voltage side winding of the high-voltage column (12) in relation to the number of turns n _H the relation V / rL> V „/ n is given. 15 high-voltage transformer arrangement according to claim 14, characterized in that da3 the first end of the high-voltage coil (l2) with the focusing coil (22), which is close to a ground potential part a rectifier element (24) and is connected to the ground potential part via a capacitive element (25). 3098 7. 1 / U 8 1 6
BATH ORIGINAL Z256Q06 16. High-voltage transformer arrangement according to claim 2, characterized in that that the Hie de rspannungs coil (ll), the core (l_3)> the high voltage coil (l2) and the high voltage rectifier (9) are received in a housing (26), where "with the remaining parts of the Interior of the housing (26) are filled with insulating oil. 17. High-voltage transformer arrangement according to claim 2, characterized in that that the high-voltage coil (12) according to the method of Stair winding, the honeycomb winding, the step winding or after another suitable winding method. 18. High-voltage transformer arrangement according to claim l6, characterized in that that the high voltage coil (12) according to the ^ method of Stair winding, honeycomb winding, step winding or another suitable winding method - .L st. 19. High-voltage transformer arrangement according to claim 2, characterized in that that a stepped bobbin (31) or a tapered one Coil bobbins (32) are provided, which are a large part Diameter and have a part of small diameter, the high-voltage side winding and the low-voltage side Winding the high tension coil (12) on the large diameter having part or on the small diameter having part of the bobbin (31 * 32) wound are. 20. High-voltage transformer arrangement according to claim 16, characterized in that that a stepped bobbin (31) or a tapered bobbin (32) are provided, which large part. Diameter and have a part of small diameter, the high-voltage side winding and the low-voltage side Winding the Ho chspannungs coil (12) on the part having the large diameter or on the small diameter having part of the bobbin (31} 32) wound are. 21. High-voltage transformer arrangement according to claim I7, characterized in that that a stepped bobbin (31) or a tapered bobbin (32) are provided, which large part Diameter 309822/0816
BAD ORfGfNAl Diameter and have a part of small diameter, wherein the high-voltage side winding and the low-voltage side Winding the high-voltage coil (l?) On the large diameter having part or on the small diameter having part of the bobbin (31 * 32) wound are. 2. High-voltage transformer arrangement according to claim 14> characterized in that the low-voltage coil (ll) in a main winding (34) and an auxiliary winding (35) is divided with the hochspannungssei term winding of the high voltage coil (12) respectively magnetically closely coupled to the focus of the coil (22) are. 309822 / U816 Blank page