SU449445A1 - Analog-digital multiplying device - Google Patents

Description

ANALOGUE, DIGITAL) 1E POSSIBLE-PERFORMANCE DEVICE

This invention relates to an electrical measuring technique.

Analog-digital multiplying devices are known that contain null-argan, the inputs of which are connected to the output of a sawtooth generator made on the integrator, the inputs of which are connected to the sources of different polarity voltages through corresponding switches with the same inputs And circuits, a reversible counter, a generator of rectangular pulses connected to the input of the valve, a control unit.

The proposed device is distinguished by the fact that, in order to expand its functional capabilities, two additional AND schemes, two OR schemes, an additional null organ, delay circuits, and a functional frequency converter, whose input is connected to the integrator's output and the additional input, are introduced into it. null organ, and the output through the delay circuits is connected to

the second inputs of the corresponding And circuits and directly with one inputs of two additional And circuits, the second inputs of which are connected to the output of the control unit, and the outputs to the same inputs of two OR circuits, the second inputs of which are connected to the output of the valve, the others are connected respectively to the outputs of two zero groups -organs Outputs

OR circuits are connected via a reversible counter to the control unit.

Figure 1 presents the block diagram of the multiplying-separating device; figure 2 shows the timing diagrams,

reading the schemes.

The outputs of the zero-bodies 1-4 through the circuit And 5-8 connected to the inputs of the circuit OR 9,10. Sources of reference voltages 11 and 12 are connected via keys 13 and 14

with the circuit And 15 (integrator). The output of the circuit 15 is connected to the inputs of the functional measuring frequency converter (PIChP) 16 and null-bodies 1–4.17, the source output

the reference voltage 12 is connected to the second) at the output of the functional measuring frequency converter 16, the output of which is connected through the delay circuits 1 21 and the circuits AND 5 to 8,22,23 with the circuits OR 9, 10.-Vssody circuits, 1О through the reversible counter 24 are connected to the control unit 25, whose codes are connected to the keys 13, 14, the AND 22, 23 circuits and the gate 26. The square pulse generator 27 is connected via the gate 26 to the OR 9 and Yu circuits, and the output of the null organ 17 is connected to the control unit 2B, , /:. . ,,,: The proposed multiply-dividing device accomplishes an oderation of type. . . to pha. y.chU / j. D t 1 The multiply and divide operation is replaced by logarithmization, addition and subtraction followed by anti-logarithm:. “C / Akif-x-e .... G1Ugg. A / tit € n,% The device works as follows. In the initial state, the inputs of the nullorgans 1–4 are supplied with input values V at 1 2 keys 13,14 closed. The command start from the control unit 25 opens the key 13, and the voltage Y from the source of the reference voltage 12 is fed to the input of the integrator 15. The output voltage of the integrator 15 is fed to the second inputs of the zero-organs 4 and to the input of the functional measuring frequency converter 16, output frequency of which is inversely piston time. The pulses from converter 16 are fed to the inputs of delay lines 1 & 21, which delay the pulses by time i; , -, v / X / b ,, but not exceeding the time corresponding to the period of its maximum frequency, Pulses shifted in time through AND 5-8 circuits and OR 9.1O circuits arrive at the corresponding inputs of the reversing counter 24. Pulses X rv with And p, 6 circuits controlled by zero-bodies 1,2 are fed to the summing input of a reversible counter 24, and pulses Y, U, ..., UGM from circuits 8 controlled by zero-bodies 3,4u to the subtractive entrance. As soon as the output voltage of the integrator reaches the value of any input value (X,., X, Y,.,., Y / 72,), the corresponding zero-body stops the flow of pulses to the counter through the circuit I, with which it is connected ( 2). After all the nullorgans work, in the reversible counter 24 it turns out the number ... + NnrNrf -N n Xi tfiXji HlG-fiy -tfty. .. The logging in the device is carried out by a pulse generator 27, circuits AND 22.23, a valve 26, a zero-body 17, a source of reference voltage 11, and a key 13. From a control unit 25; The key 14 is unlocked and the voltage from the sources 12 is fed to the integrator 15. In this case the null-organ 17 is turned off and the circuit 22,23 is switched on. From the functional Measuring frequency converter 16, the pulses come through AND 22 or AND 23 and OR 9.1O circuits to (+) or (-) reverser & 4 counter 24J depending on the sign of the obtained logarithm-ISPIwiqt L / L number Functional measuring output frequency the frequency converter, as in logarithmization, is inversely proportional to time. The number of pulses arriving at the input of counter 24 is determined from the equation NK-) di-en..tH for tj, Nf / iix. When the counter 24 passes through zero, the control unit 25 issues a command whereby the AND circuit (22 or 23) and the key 14 are closed, the null organ 17, the key 13 and the gate 26 are turned on. That is, at that time point / Vx-W j. Cn, t) (SPI and, therefore, tx.

those. at this moment the voltage at the output of the integrator is 15

.

Now the voltage of the opposite voltage is supplied to the integrator input from the voltage source 11, and the voltage at its output decreases. At the same time, from the generator 27 through the gate 26 and the OR circuit (9 or 10), the counter 24 receives pulses with a frequency J (J. As soon as the voltage at the outboard of the integrator 15 reaches zero, the null organ 17 closes the valve 26 through the control unit 25 A number is recorded in counter 24.

V ix% 2r

Thus, the proposed device allows performing the operations of rhyme and potentiation in two cycles. Different functional transformers, in particular, multiplying-dividing devices can be built on it.

Subject invention

An analog-digital multiplying-sharing device containing nullorgans whose inputs are connected to

AT

the output of a sawtooth national generator made on the integrator, the inputs of which through the corresponding switches are connected to sources of different polarity reference voltages {outputs, the outputs of the zero organs are connected to the same inputs of the respective circuits And, a reversible counter, a generator of rectangular pulses, connected to the input The control unit, which distinguishes it with the fact that, for the purpose of expansion / functionality, two additional ones are introduced into it;

two OR circuits, an additional null organ, delay circuits and a functional measuring frequency converter, the input of which is connected, to the integrator output and an input of the additional null organ, and the output is connected via the delay circuits to the second inputs of the corresponding AND circuits additional circuits And, the second inputs of which are connected to the output of the control unit, and the outputs - to the same inputs of two OR circuits, the second inputs of which are connected to the output of the valve, and the rest are connected respectively to the outputs of two x groups of zero-organs, the outputs of the OR circuits are connected to the control unit via a reversible counter.

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