SU1277226A1 - Transformer device - Google Patents

Abstract

The invention relates to radio engineering, in particular to high-frequency transformers. The purpose of the invention is to increase the efficiency of the transformer. The device contains two three-wire lines with conductors 1.1,1.2,1.3, 2.1.2.2.2.3. Beginning of the conductor 1.2 and Т е.1 2.2 g3 t. The .3 and 11 ends of the conductor 2.2 are combined into a common niche 4. Between the conductors 1.3 and 2.3 at the same distance from the beginning of the conductor 1.3 and from the end of the conductor 2.3 a reactive two-pole 5 is connected, which is mainly a series-connected capacitor and inductance coil. Conductors 1.1,2.3,1.3,2.1 form a winding with clamps 3.1, 3.2, conductors 1.2 and 2.2 form a step-down winding with clamps 6.1, 6.2, symmetrical with respect to the common bus 4. Additional jet bipolar 5 together with its own reactive components of the line provide simultaneous transformation of the signal in the working frequency band and filtering outside the working frequency band. 1 silt, f. 13 / s (L

Description

T

e.1 2.2 g.

The invention relates to radio engineering, in particular to the design and manufacture of high-frequency transformers.

The purpose of the invention is to increase efficiency.

The drawing shows an electrical circuit of a transformer device.

The device contains two three-wire lines. The first three-wire line - conductors 1.1, 1.2, 1.3. The second three-wire line - conductors 2.1, 2.2, 2.3. Conductors 1.1, 2.3, 1.3, 2.1 form a step-up winding with clamps 3.1 and 3.2. The beginning of the conductor 1.2 and the end of the conductor 2. are combined into a common bus 4. Between the conductors 1.3 and 2.3 at the same distance from the beginning of the conductor 1.3 and from the end of the conductor 2.3 a reactive two-pole 5 is included, which is, for example, a series-connected capacitor and inductor. Conductors 1.2 and 2.2 form a step-down winding with clamps 6.1 and 6.2, symmetrical with respect to common bus 4. The end of conductor 1.1 is connected to the beginning of the conductor 2.3 (the beginning is indicated by a point), the end of which is connected to the beginning of the conductor 1.3, the end of which is connected to the beginning of the conductor 2.1

The device performs the following functions.

Twice transformation of voltages between inputs 3.1, 3.2 and outputs 6.1, 6.2 balanced relative to the common bus, filtering unwanted frequencies, such as harmonics, when going from input 3.1, 3.2 to output 6.1, 6.2 (or vice versa). At the same time, while filtering undesirable components, the disagreement is sufficiently small for the operating frequencies.

The device works as follows

In the absence of a reactive two-terminal 5, there is a significant mismatch for operating vibrations. This is due to the fact that for these oscillations the beginning of the conductor 1.3 and the end of the conductor 2.3 have zero potential relative to the common bus 4, i.e. they can be considered connected to a common bus 4, Then between the conductors 1.2 and 1.3, as well as the conductors 2.2 and 2.3, a segment is formed

short-circuited at the end of a two-wire, line. These segments act as connected indcutive successive branches in the transmission chain from input 3.1, 3.2 to output 6.1, 6.2. When the reactive two-terminal 5 is turned on, it is transformed (depending on the switching location) to the end of the conductor 1.3 and the beginning of the conductor 2.3. At the same time, an antiphase voltage acts, due to which the midpoint of the recalculated two-terminal network will be at zero potential, i.e. it acts not as longitudinal elements (E) of the scheme, which are short-circuited segments of two-wire lines, but as a shunt element. As a result, an L-shaped link is formed, providing both a reduction in the mismatch in the working frequency band introduced by short-circuited two-wire lines, and additional filtering of unwanted frequency components.

The proposed device, using its own reactive components in combination with an additional reactive element, simultaneously provides both a transformation in the working frequency band and filtering outside the working frequency band, which increases efficiency.

Claims (1)

Invention Formula A transformer device containing up-and down windings made in the form of two three-wire lines, the up-winding being formed by the first and third conductors of the three-wire lines; the first three-wire line, the end of which is connected to the beginning of the first the second three-wire line conductor, and the down winding is formed by the second three-wire line conductors, characterized in that, in order to increase the efficiency, the device further comprises a reactive two-pole, the beginning of the second conductor of the first three-wire line and the end of the second three-wire conductor The wire line is united in the total distance from the beginning of the third bus, and the indicated reactive two-conductor of the first three-wire line is connected between the third pro- line and the end of the third conductor of the second three-wire line on the one-three-wire line.