SU760122A1 - Multiplying-dividing device - Google Patents

Description

The invention relates to the field of electrical computing devices and can be used in analog computers. _

A multiplying-dividing device is known that contains key elements, threshold elements, a filter, sources of the dividend, divisor and multiplier signal [1].

This device has a relatively small dynamic range of 0m input signals.

Of the known devices of similar destination closest to 15 is proposed mnozhitelnodelitelnoe device comprising a main accumulator connected pos.ledovatelno filter and a phase-sensitive rectifier, amplifier 20 pos- toyannogo voltage scaling · ¹ pre-forming, the first input of the adder coupled to the main output of the alternating voltage source - a divider and a second input coupled to the used DC voltage source of 25 - nozhitelya COM ^1, source of alternating voltage, the dividend, which outputs conn cheny managed to the inputs of the amplifier [2]. thirty

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The disadvantages of the known device are a limited range of voltages of the input converted signals and a relatively low accuracy.

The aim of the invention is to expand the dynamic range of the input signals and increase accuracy.

The proposed device differs from the known in that it introduces the first and second additional adders, a switch, a threshold / element, a key element, a reference voltage source, a controlled voltage divider and a switching voltage generator, the output of which is connected to the control inputs of the switch and the phase-sensitive rectifier , the output of the reference voltage source through the key element is connected to the input of the filter, the switch output is connected to the input of the threshold element, the output of which is connected to ravlyaetsya input key element, the scale converter inputs and the controlled voltage divider connected to the output of the reference voltage source, the output of controlled voltage divider connected to the first

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the input of the first additional adder and device output, the second input of the first additional adder is connected to the output of the alternating voltage source - split, the outputs of the main AND first additional sum of 5 tori are connected to the corresponding inputs of the switch, the output of the phase-sensitive rectifier is connected to the input of the DC amplifier, the outputs of the DC amplifier for example, a voltage transducer and a scale converter are connected to the corresponding inputs of the second additional adder, the output of which is Connected to the "control input of a controlled voltage divider. '5

The drawing shows a functional diagram of the proposed device.

It contains the main adder 1, the first additional adder 2, the switch 3, the threshold element 4, 20

key element 5, filter 6, phase-sensitive rectifier 7, constant voltage amplifier 8, second additional adder 9, controlled voltage divider 10, reference voltage source 35 11, large-scale converter 12, switching voltage generator 13, divider 14 alternating voltage source, constant source factor-15 voltage, a source of alternating voltage divisible 16 and an output 17 of the device.

The device works as follows. ,

The signals from the AC source 35. Voltage - divider 14 and from the source of DC voltage - factor 15 are fed to the inputs of the main adder 1. The amplitude of the signal of the alternating voltage source of the divider 14 is chosen greater than the signal value of the DC source-factor factor 15. Under this condition, the output voltage of the main adder 1 will pass through zero. 45

The inputs of the first additional adder 2 signals from an alternating voltage source - divisible 16 and from the output of a controlled voltage divider 10. The output voltages of the main and first additional adders 1 and 2 are periodically fed through the switch 3 to the threshold element 4. The switching frequency specified by the switching voltage generator 13 is significantly lower than the frequency of the alternating voltage source signals - divisible 16 and divider 14. With positive signals at the outputs of the main and first additional adders 60 1 and 2, the output signal of the threshold element 4 opens the key element 5, the output of which appears the voltage of the source 11 reference to Costumed. Output voltage is key 65

Element 5 is a batch of rectangular pulses with amplitude periodically repeated with a switching frequency with an amplitude determined by the magnitude of the voltage of the source 11 of the reference voltage. Their duration is determined by the ratio of the amplitudes of the signals of the sources of alternating voltages of the divisible .16 and divider .14, as well as the magnitude of the signal of the dc voltage source - the multiplier 15.

The output voltage of the key element 5 is supplied to the filter 6, which is tuned to the switching frequency. The output voltage of the filter 6 is rectified by the phase-sensitive rectifier 7. The polarity of the output voltage of the phase-sensitive rectifier 7 depends on the ratio of the pulse durations in the output signal of the key element 5. The inputs of the second additional adder 9 are supplied with voltage from the outputs of the DC amplifier 8 and the large-scale converter 12. The output voltage of the latter determines the output voltage the initial mode of operation of the controlled voltage divider 10, the output voltage of the second additional adder 9 pos upaet managed in the control circuit of the voltage divider 10 and adjusts its transmission rate so that the pulse duration of the output signal of the key element 5 is leveled with precision droop error.

The pulse duration in the output signal of the key element 5 does not depend on the initial phases of the signals from the sources of alternating voltage _h divisible 16 and divider 14, but is determined only by the relationship between the amplitudes of these signals and the values of constant voltages supplied to the inputs of the main and first additional adders 1 and 2 .

"The proposed device provides, compared with the prototype, a wider range of input signals' and increased accuracy of operation.

Claims (1)

Claim A multiplying-dividing device containing a main adder, a filter connected in series and a phage-sensitive rectifier, a constant voltage amplifier, a large-scale converter, the first input of the main adder is connected to the output of an alternating voltage source - divider, and the second input is connected to a constant voltage source of the multiplier, an alternating voltage source- divisible), characterized in that, in order to expand the dynamic range of the input signals and improve the accuracy of work, first and second drpolny5 760122 b adders, switch, threshold element, key element, reference voltage source, controlled voltage healer and switching voltage generator, the output of which is connected to the control inputs of the switch and phase-sensitive rectifier, the output of the reference voltage source through the key element connected to the filter input, output the switch is connected to the input. of the threshold element, the output of which is connected to ¹ the control input of the key element, the inputs of the large-scale converter and the controlled voltage divider are connected to the output of the reference voltage source, the output of the controlled dividers-15 is connected to the first input of the first additional adder and device output, the second input of the first additional adder is connected to the output of the AC 20 voltage source - the divisible, the outputs of the main and first additional adders are connected to the corresponding inputs of the switch, the output of the © sensitive will rectify It is connected to the input of the DC amplifier, the outputs of the DC amplifier and the large-scale converter are connected to the corresponding inputs of the second additional adder, the output of which is connected to the control input of a controlled voltage divider.