SU362313A1 - DEVICE FOR VOLTAGE DIVISION - Google Patents

Description

one

The invention relates to electronic measuring and computing equipment and is used to obtain the necessary division factor in the case of a series of series-connected voltage dividers on precision reversible and tear drivers.

Precision voltage dividers made on precision reversible inverters are known. It is also known to sequentially connect several stages of such dividers in order to obtain a greater division factor and reduce the number of precision reversible inverters.

However, if it is necessary to divide the voltage by any one, predetermined, integer or fractional number, in a known divider this is not always possible.

In order to expand the scope of application, the proposed device contains additional precision reversible feedback inverters, the DC inputs (outputs) of which are connected in series with the inputs of dividers.

At the same time, the pulse inputs (outputs) of additional precision reversible inverters are connected by a variable input, it (and only by a variable component) with pulse outputs (inputs) of some precision reversible divider inverters.

The scheme of the proposed device is shown in the drawing, where: 1-9 and precision inverters; 10 - coupling capacitors of precision inverters; a b, d, e, f, g-output terminals of the circuit; DC input -

The t / BX circuit is a series connection of three stages of voltage dividers on precision inverters and one feedback element — an additional precision reversible inverter.

The first divider (two) consists of precision inverters 2 and 3, the second divider (three) consists of precision inverters 4, 5, 6, the third divider (three) consists of precision inverters 7, 8, 9.

An additional precision inverter 1, which acts as a source of feedback voltage, is connected by its pulse input parallel to the pulse output of the precision inverter 9.

Using such a connection to an additional first-generation inverter, the DC injection arising at the output of the circuit is fully fed back to its input sequentially with the input source.

This connection is dependent on the phasing of the secondary windings of the inverter transformer I

may be positive or negative. In the first case, the division ratio of the circuit from its input to output g decreases by one, and in the second case increases by one.

The expression of the division ratio for the output terminal g will be:

And del.comp (A del1 L del, / v delz) i U

where / Trans is the division ratio of the first precision divider consisting of inverters 2, 3; / Made - The division ratio of the second precision splitter, consisting of inverters-- 5, 6; / Transaction-dividing ratio of the third precision divider, consisting of inverters 7, 8, 9.

Analysis of this expression leads to the conclusion that the division ratio of the circuit before clamping g will be equal to:

, division of (2-3-3) ± 1 18 ± 1,

i.e., 19 or 17 (depending on the sign of the feedback, i.e., on the phasing of the transformer windings in the precision inverter /).

This requires (2 + 3-1-3 + 1) a total of 9 precision inverters.

For other outputs of the circuit, the division factor will be respectively:

22

-OR / Trans. ,

33

-g; gili / Sdel.e -,

nineteen

6

ABOUT

OR / Sdet. -;

-yy19

/ f-

or

And affairs. -)

nineteen

18

18

- OR

 and

17

Using such a scheme, one can always obtain the practical division ratio (multiplication) with the minimum number of precision inverters.

Subject matter

A device for dividing voltage, containing series-connected voltage dividers on reversible inverters, characterized in that, in order to expand the area with the device, it contains additional reversible feedback inverters, the DC inputs of which are connected in series with the inputs of the respective dividers voltage, and the pulse inputs of additional reversible feedback inverters are connected to the pulse outputs of the respective invertible divider inverters.