SU550651A1

SU550651A1 - Quadrator

Info

Publication number: SU550651A1
Application number: SU2193047A
Authority: SU
Inventors: Александр Михайлович Косолапов
Original assignee: Куйбышевский Политехнический Институт Имени В.В.Куйбышева
Priority date: 1975-11-25
Filing date: 1975-11-25
Publication date: 1977-03-15

Description

1one

Изобретение относитс к области измерительной и вычислительной техники.The invention relates to the field of measurement and computing.

Известны устройства дл возведени в квадрат аналоговых сигналов 1, содержаш,ие квадратируюидие блоки.Devices for squaring analog signals 1 are known, containing, are square blocks.

Недостатком известных устройств вл етс небольшой диапазон изменени входных сигналов , при котором обеспечиваетс достаточна точность.A disadvantage of the known devices is the small range of variation of the input signals, at which sufficient accuracy is ensured.

Наиболее близким техническим решением к данному изобретению вл етс квадратор 2, содержаш,ий квадратируюш,ий блок, сумматор и делитель напр жени .The closest technical solution to this invention is a quadrant 2, containing, squaring, block, adder and voltage divider.

Такое устройство имеет недостаточную точность и небольшой диапазон изменени входных сигналов.Such a device has insufficient accuracy and a small range of input signals.

Цель изобретени - повышение точности и расширение диапазона работы квадратора.The purpose of the invention is to improve the accuracy and expand the range of the quad.

Это достигаетс тем, что предлагаемый квадратор содержит дополнительно сумматор, ключи, пороговые блоки, причем выходы пороговых блоков соединены с блокируюш,ими входами пороговых блоков с меньшим порогом срабатывани , входы основного сумматора соединены с выходами иороговых блоков и со входом устройства, а выход соединен со входом квадратируюш,его блока и с информационными входами ключей, управл юш,ие входы которых соединены с входами соответствуюших пороговыхThis is achieved by the fact that the proposed quadr additionally contains an adder, keys, threshold blocks, the outputs of the threshold blocks are connected to the blocking, the inputs of the threshold blocks with a lower threshold of operation, the inputs of the main adder are connected to the outputs of the threshold units and the device input, and the output is connected to the input is square, its block and with the information inputs of keys, control, the inputs of which are connected to the inputs of the corresponding threshold

блоков, входы дополнительного сумматора со единены с выходами ключей, пороговых блоков и с выходом квадратируюшего блока, выход доиолиительного сумматора вл етс выходом устройства, а вход устройства соединен с входами пороговых блоков.the blocks, the inputs of the additional adder are connected to the outputs of the keys, the threshold blocks and the output of the square block, the output of the secondary adder is the output of the device, and the input of the device is connected to the inputs of the threshold blocks.

На чертеже показана схема предлагаемого квадратора.The drawing shows the scheme of the proposed quad.

Квадратор состоит из пороговых блоков 1-The quadrator consists of threshold blocks 1-

3, сумматоров 4, 5, квадратируюш,его блока 6, ключей 7-9. Вход 10 устройства соединен с пороговыми блоками 1-3, св занными друг с другом и с входами сумматоров 4, 5. Один вход сумматора 4 св зан с входом 10, а выход подключен к входу квадратируюшего блока 6 и через ключи 7-9 к входам сумматора 5, св занного также с квадратирующим блоком . Управл ющие входы ключей 7-9 св заны с соответствуюш,ими нороговыми блоками.3, adders 4, 5, squared, of its block 6, keys 7-9. The device input 10 is connected to threshold blocks 1-3, connected with each other and with the inputs of adders 4, 5. One input of adder 4 is connected to input 10, and the output is connected to the input of square block 6 and through keys 7-9 to inputs adder 5, also associated with the square block. The control inputs of the keys 7-9 are associated with the corresponding, normal power blocks.

Принцип действи квадратора заключаетс в следующем.The principle of the quad is as follows.

Входное напр жение поступает на пороговые блоки 1, 2, 3, при этом выходные сигналы по вл ютс только с одного из них, порог срабатывани которого наиболее близок к уровню входного напр жени .The input voltage is supplied to the threshold blocks 1, 2, 3, and the output signals appear only from one of them, the response threshold of which is closest to the input voltage level.

Claims

The signal from the triggered threshold device blocks other threshold blocks, the trigger threshold of which is lower than the input voltage level. The triggered threshold unit generates signals, one of which goes to adder 5 and adder 4, where it is subtracted (algebraically summed) from the input signal, and the other opens the corresponding key, and the difference signal r4 t / BX-i / n / 4 where: C - transfer coefficient of adder 4, Un - signal at the output of the threshold block, f / E4 - signal at the output of adder 4, goes through the key to the input of adder 5. In addition, one of the inputs of adder 5 receives voltage f / 24 from the output of the square block 6. As a result, at the output 11 of the device operates the signal al: and ,,, + KtdJn + p where Kis, Ki5 are the transfer coefficients of the adder 5 according to the corresponding inputs. If you choose these factors, for example, so that: Un- Kl. To I, Ki ,, Ui const, then the previous expression will be rewritten as: n (f / Bx - Un-Kt, r + (Ku-UnY + +, (U ,,) - Ki, Ul,. Ki, Thus, the proposed quadr performs operations without methodological errors in a much wider range than the narrow-range quadrant used in it, for which any of the known ones can be used. It is also obvious that if f / nf / in-n, (this is practically can be achieved by selecting the appropriate number of threshold blocks in a given range of input signal variation), then the error proposed to Advertisers can be achieved significantly less than narrowband quadratic error.The device can be used in analog and analogue-digital technology. Claims of the Invention Quadrator containing an adder, a square block, characterized in that, in order to improve accuracy and extend the range of operation it additionally contains an adder, keys, threshold blocks, the outputs of the threshold blocks are connected to the blocking inputs of the threshold blocks with a lower threshold, the inputs of the main adder connected to the outputs of the threshold blocks and to the input of the device, and the output is connected to the input of the square block and the information inputs of the keys, the control inputs of which are connected to the inputs of the corresponding threshold blocks, the inputs of the additional adder connected to the outputs of the keys, threshold blocks and the output of the square block, the output of the additional adder is the output of the device, and the input of the device is connected to the inputs of the threshold blocks. Sources of information taken into account during the examination: 1. USSR author's certificate No. 366476, M. Kl.2 G 06 G 7/20, publ. 08.08.70.

2. USSR Author's Certificate No. 437092, M. Kl.2 G 06 G 7/20, publ. 03/05/73 (prototype).