RU1814175C - Alternating-to-alternating voltage converter - Google Patents

Abstract

Usage: the invention relates to the field of electrical engineering and can be used in power circuits of various electronic equipment. SUMMARY OF THE INVENTION: the device comprises two keys of controlled keys 1-4 and 5-8, according to which there is a transformer 9, the primary coil 10 of which is advantageous to 1 day 6e) ad1sj1 and the coil winding 11 and the voltage boost transformer 12, the secondary winding i 13 of which is connected in series to the load circuit ; two primary windings 14-15. The first extreme leads of sgbmoUok 15 and 14 through two control groups: switch and 5-8 are connected to the corresponding one (of the jointed winding 10 / First output of the second primary winding of the main transformer 12 is connected to the beginning of the winding 16 and the end of the 17th section of the winding. 1 and / f ..

Description

The invention relates to electronics and can be used in power circuits of various electronic equipment

The purpose of the invention is to simplify windings and increase reliability.

In the representative / gene drawing, an AC / AC converter circuit is shown. ; .. ... ..- - ....:;:. :: /.,: i: -The converter contains two groups of controlled keys 1-4 and 5-8, a matching transformer 9, the primary winding 10 of which is sectioned, the secondary winding 11, the boost transformer 12, the secondary winding 13 of which is included in load circuit in series, two primary windings 14-15 .: The first extreme terminals of the windings 15 and 14 through two groups of controlled keys 1-4 and connected to the corresponding terminals of the partitioned winding 10. The first terminal of the second primary winding in the auxiliary transformer 12 is connected toAchal winding 16 and the end 17 of the sectioned winding.

The converter operates as follows. ...:, - -: ....: -. . - l / I.-H:.:: When the voltage changes upward, at the beginning of each positive half-period one of the controlled switches 1-, 4 is connected, connecting the primary winding 15 of the boost transformer 12 to the sectioned winding 10 of the matching transformer 9.

At the beginning of each negative half-period, one of the controlled keys 5-8 is turned on, connecting the second primary winding 14 of the boost transformer 12 to the free space

-

b.

3

the exact conclusions of the sectioned winding 10 ... e: .-};,. : v:, v.; /. :: -: -, .-. V. ..; - :.

One of the primary windings of the booster transformer 12 is powered only during a half-cycle of one polarity, the other primary winding - during a half-cycle of another polarity.

When the mains voltage changes, controlled AC switches are connected, connected to the corresponding terminals of the sectioned winding of the matching transformer.

Due to the fact that the first terminal of the second primary winding of the boost transformer is connected to the end of the sectioned winding of the matching transformer, while the free terminals of the controlled keys of the second group are connected to the free intermediate leads of the sectioned winding of the matching transformer, the number of sectioned windings is reduced to one, and the number radiators reduced to two .--,:;.;.,: .у - ..:., Д; Ы -:; - ;; - .g-.

The form of a la zobre in ni; ;

A variable-to-variable converter containing two groups of controlled keys; in each; th

of which the terminals of the same name are combined into a common point, a matching transformer, one of the windings of which is sectioned, a booster transformer with two primary windings, the secondary winding of which is connected in series to the load circuit, while the first terminal of the first primary winding of the booster transformer is connected to the beginning of the sectioned winding of the matching transformer; the second opposite terminals of the primary windings of the transformer are connected to the common points of the corresponding groups of controlled keys; the free terminals of the controlled keys of the first group are connected to the corresponding terminal | b; rfl and h-ia y-;

In addition, in order to simplify and increase reliability, the first terminal of the second primary winding of the boost transformer is connected to the end of the sectioned winding of the matching transformer / mount /: these are free outputs that are controlled. (: yen with free intermediate outputs m and sec c and he ir o v a n n o And rbN | cng and

Power Transformer,