SU444202A1 - Voltage multiplying device - Google Patents

Description

(54) DEVICE FOR MULTIPLICATION, STRESS

one

The invention relates to computing and electrical engineering and can be used in electronic computing devices for various purposes where multiplication or division is necessary.

electrical signals (current, voltage).

Known multiplying devices; containing logarithmic converters, totals, and antilogarithic blocks, have 1xhz accuracy and low

speed.

The principle of operation of the device is based on the fact that the instantaneous values of k electric signals when multiplying. convert to a power function eg. nor with an exponent equal to the sum of time intervals proportional to the natural logarithm of the instantaneous values of electrical signals.

The goal is to increase accuracy and speed.

For this, the device contains a block. exponentiation and analog-to-digital converter; the output of the control unit is connected directly to one input of the analog digital converter, and to another through the exponentiation unit.

The drawing shows a diagram of the proposed device.

The device contains the formers 1 and 2 of the time intervals, proportional naturally to the 1st lot of the instantaneous values of the first and BTOJDOro voltages, respectively, control unit 3, unit 4 is equal to a power equal to the sum of time intervals of the formers 1 and 2 and the analog-digital converter 5 power function.

The studied strains, proportional factors X and Y, are fed to the inputs of identical actuators 1 and 2, which can be made as aperiodic link to the comparison circuit. Direction at the exit of aperiodic-

The skip link repeats all changes to the input signal. When the generator 1 is started with a clock pulse D, the aperiodic chain is disconnected from the input voltage source X and connected to the bus K3444202 nyc from the moment the voltage at the aperiodic link output decreases according to the law:

de X is the instantaneous value of the generated nanrice at a time instant. When the response level 10 is reached 10 at the comparison circuit of the former 1, a pulse is generated, which through the control unit 3 launches the form 2 of the head 2. The former 2 does not differ from i 19 shafts 1 time t to moments between

launch of formatters 1 and 2 and the moments of operation of their comparison circuits determine clogs from the expressions: .20 t: t p JL 1 1 li T. Cu T is the time of discharge of the aperiodic link. Simultaneously with the launching of the forms of the drover 1, the control unit 3 starts the unit for raising a power proportional to the sum of the time intervals t., And t As the unit 4, you can use an amplifier whose positive feedback includes an integrator. When a voltage jump with an amplitude U is applied to the input of the unit, its output voltage changes according to; the time constant of the integrator. During a time, the voltage on R J. the output of block 4 will reach the value: K. K to W

1 TO

K U-.K () - transmission

ij.

coefficient

liblock 4;

"4 - Y

If the coefficient K 1, then

and to „hu.

(five)

out 3 K K f X 1 Y, and I-1 ---) di. К, КД, vy -J iJ UK (-Н | Кд (ХУТК4 (4) This voltage is fed to the analog-to-fx input to the converter 5, which can be performed on the basis of fredron-r; HQTo generator, com) the key and the generator of counting pulses. The number of ir pulses coming from the output of converter 5 is proportional to the product of the instantaneous values of the signals under study. The accuracy of voltage multiplication depends on the accuracy of setting the parameters U, .t Г | 2 11 К and can be obtained sufficiently high .. The speed of the proposed device is much higher than the faster A device with a similar purpose and, since the multiplication is performed without npoMi, the summation and anti-logarithm. Subject of the Invention The device for voltage multiplication, which contains two logarithmic nagfency converters in the time interval whose outputs are connected to the unit: in order to increase accuracy and speed, it contains an exponentiation unit and an analog-C converter, and the output of the control unit is connected to one input of an anapogy () | the caller directly, and b others through the exponentiation block.

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