SU1012269A1 - Digital function converter - Google Patents

Description

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"F ....... Jj

AI The invention relates to automation and computing and can be used to linearize the characteristics of frequency sensors. A device for calculating the function rE is known, containing a control counter, a coincidence circuit, an assembly circuit and a counter-divider, whose input is the device input, and the output of each digit of the divider counter is connected to the information input of the corresponding coincidence circuit, the control input of which is connected to The OUTPUT of the corresponding discharge of the control counter, the outputs of all the coincidence circuits are connected to the inputs of the assembly circuit, the output of which is connected to the input of the control counter The drawback of the device is narrow national capabilities. The closest in technical essence to the proposed converter is a device for calculating a function) g | containing the first and second counters, prohibition elements OR, the third counter with counting and installation inputs, the input of the first counter being the input of the device, the output of each bit connected to the information input of the corresponding prohibition element; controls are connected to the output of the corresponding digit of the second counter; the outputs of all prohibition elements are connected to the inputs; OR, whose output is connected to the counting input of the third counter, the third counter output coupled to an input of second counters rs. The disadvantage of this device is the impossibility of calculating the function -E / J, which reduces the functionality of the device. The purpose of the invention is the expansion of functional capabilities by calculating the functions of a and K: m. The goal is achieved by having a digital function converter containing the first counter, the outputs of which are connected to the first inputs of the pulse-potential elements AND, the second ones of which are connected to the outputs the second counter, the outputs of the pulse-potential elements AND are connected to the input of the element OR, a commutator, a frequency multiplier, whose information input is connected to the output of the element OR, and the output connected to the input The home of the second counter, the first and second groups of information inputs of the switch are connected respectively to the outputs of the first and isTop meters, a third group of information inputs of the switch are connected to the converter's setup inputs, and the switch outputs are connected to the control inputs of the frequency multiplier. The drawing shows a structural diagram of a digital functional converter. The converter contains the first 1 and second 2 counters, the pulse-potential elements AND 3, the element OR 4, the frequency multiplier 5, the switch 6 with the group 7 of the installation inputs. The device works as follows. Before starting the conversion, the number 0 is recorded in counter 2. Since the counter. 1, And 3 elements and And 4 elements are a binary frequency multiplier, controlled by counter 2, or the increment dx of the pulse sequence x fed to the input of c. Counter 1, which is the input of the function converter, will cause the increment dz at the output of element 4 the pulse sequence Z, defined by the ijo formula where y is the value of the number in counter 2, t is the conversion factor of counters 1 and 2. The pulse sequence z is fed to the input of multiplier 5, controlling inputs which can be used with switch b yucheny installation or to a group of inputs 7, or to the outputs of the counter discharge sortvetstvuyuschyh rows pervbm 1. In case the device operates similarly to the prior art and implements f $ gnktsiyu N,. Consider the case where the control inputs of multiplier 5 are connected via switch 6 to the outputs of the corresponding bits of counter 1. In this case, the increment dz of the pulse sequence z will cause the output of multiplier 5 to increment dy of the pulse sequence y, which enters the input of counter 2 where X is the current value of counter 1, or taking into account the expression (1) dy xy - (3)

3, 1012269

m And dividing the variablesMaking ke; will get

dx

Integrating (4 we get the dependence

X

1and

Tg

О From where the current value of the number in the counter 2, which is the result of the conversion: Consider the case when the control inputs are multiplied, 5 are connected via switch 6 to the outputs of the corresponding counter bits 2. At the same time, n | Increasing the dz sequence of g will cause the output of multiplier 5 to increment dy of the y sequence received at the input of counter 2. or, taking into account the expression (1} dy. fflZ Denoting k m and dividing the variable, we get

(9)

Integrating (9) we get the dependence

one

(ten)

ten

or from where the current value of the number in the counter 2, which is the result of the transformation / k-ax, the technical and economic efficiency of using the proposed device compared to the base object, which is taken as a prototype, is obtained by expanding the functionality. The functional possibilities are expanded due to the fact that / a, the converter, the converter, .. together with the calculation of the function, calculates the functions and -y ak / k-ax, whereas the basic object is produced. . Only the function is calculated. The proposed converter can be used in devices for automatic control of production processes, linearizers, measurement systems and in specialized computing systems.

Claims (1)

A DIGITAL FUNCTIONAL CONVERTER containing a first counter, the outputs of which are connected to the first inputs of the pulse-potential elements AND, the second inputs of which are connected to the outputs of the second counter, the outputs of the pulse-potential elements AND are connected to the inputs of the OR element, sistent in that, in order to expand the functional capabilities by calculating function y = ^x * dE ^(k = u ^ 'incorporated ^therein a switch, a frequency multiplier having an information input coupled to an output of the OR gate and the output connected to the input of the WTO th counter, the first and second groups of information inputs of switch outputs connected respectively to the first and second counters, the third group of information inputs is connected to the switch inputs of the converter installation, and the switch outputs are connected to control inputs of the frequency multiplier. SU w, 1012269