SU949702A1

SU949702A1 - Tape driving mechanism control device

Info

Publication number: SU949702A1
Application number: SU813238217A
Authority: SU
Inventors: Алексей Аврамович Реденский; Игорь Васильевич Чуманов
Original assignee: Предприятие П/Я В-8071
Priority date: 1981-01-21
Filing date: 1981-01-21
Publication date: 1982-08-07

Description

(54) УСТРОЙСТВО УПРАВЛЕНИЯ ЛЕНТОПР-ЬТЯЖНЫМ (54) CONTROL UNIT LENTOPRONTABLE

1one

Изобретение относитс к технике магнитной записи, а именно к устройствам управлени лентопрот жными механизмами с использованием дл управлени электромагнитных реле.The invention relates to a magnetic recording technique, in particular, to control devices for tape-carrying mechanisms using electromagnetic relays to control.

Известно устройство управлени лентопрот жным механизмом, содер.жащее два электромагнита и регулирующий элемент 1.A control device for a tape-testing mechanism containing two electromagnets and a regulating element 1 is known.

Недостатком известного устройства вл етс неэкономичность, обусловленна потер ми энергии на регулирующем элементе.A disadvantage of the known device is uneconomical, due to the loss of energy on the regulating element.

Наиболее близким по технической сущности и достигаемому эффекту к предлагаемому вл етс устройство, содержащее источник питани , схему совпадени , одновибратор , формирователь сигнала управлени , выход которого подклк)чен к входу одновибратора и к одному из входов схемы совпадени , другой вход которой соединен с выходом одновибратора, первый и второй электромагнит, первый и второй электронные ключи, силова входна щина первого и силова входна щина второго из которых подключена к первой клемме первого и к первой клемме второго электромагниМЕХАНИЗМОМThe closest in technical essence and the achieved effect to the proposed is a device comprising a power source, a coincidence circuit, a one-shot, a control signal generator, the output of which is connected to the one-shot input and one of the inputs of the match circuit, the other input is connected to the output of the one-shot , the first and second electromagnet, the first and second electronic switches, the power input of the first and the power input of the second of which are connected to the first terminal of the first and to the first terminal of the second electric ktromagniMEHANIZMOM

тов, соответственно, и регулирующий элемент 2.Comrade, respectively, and the regulatory element 2.

Недостатком этого устройства вл етс увеличение количества отказов из-за неоптимальных условий работы элементов.A disadvantage of this device is an increase in the number of failures due to suboptimal conditions of the elements.

5Цель изобретени - уменьщение количества отказов путем оптимизации условий работы элементов.The purpose of the invention is to reduce the number of failures by optimizing the working conditions of the elements.

Эта цель достигаетс тем, что устройство снабжено задатчиком опорного напр жени This goal is achieved by the fact that the device is equipped with a reference voltage setting device.

0 и управл ющим элементом, при этом силова выходна щина первого и силова выходна щина второго электронных ключей подключены к отрицательному и положительному полюсам источника питани соответственно , управл ющий вход каждого0 and a control element, while the power output of the first and power output of the second electronic switches are connected to the negative and positive poles of the power source, respectively, the control input of each

15 из электронных ключей соединен с выходом одновибратора, силова цепь регулирующего элемента включена между первыми клеммами электромагнитов, управл ющий вход регулирующего элемента подключен15 of the electronic switches is connected to the output of the one-shot, the power circuit of the regulating element is connected between the first terminals of the electromagnets, the control input of the regulating element is connected

Claims

20 to the output of the reference voltage setting device, the input of which through the control element is connected to the output of the coincidence circuit, and the second terminal of the first electromagnet and the second terminal of the second electromagnet are connected to the positive and negative poles of the power source. The drawing shows a block diagram of the device. The device contains the first and second electromagnets 1 and 2, the first and second electronic switches 3 and 4, the power source, to the terminals 5 and b of which elements 1-4 are connected, the regulating element 7 connected to elements 1-4 through the diode 8, a matching element 9, a reference level setting device 10, a control element 11, a matching circuit 12 connected to the command signal bus 13, a one-shot 14 and an inverter 15. The device operates as follows. A potential command is sent to turn on the device via pin 13, from which the one-shot 14 is started. The output of the one-shot 14 through the inverter 15 locks the matching circuit 12 and turns on the electronic switches 3 and 4, each of the electromagnets 1 and 2 being connected to a power source. At the end of the output signal of the one-shot 14, the electronic switches 3 and 4 are closed and through the matching circuit 12 and the control element 11 the reference level adjuster 10 is turned on, the signal of which regulating element 7 is opened through the matching element 9. By decreasing the voltage on the regulating element 7, the mode is optimized work, electromagnets 1 and 2 and eliminates the overheating of the latter. Elimination of overheating of electromagnets 1 and 2 allows stabilizing their starting characteristics and thereby increasing the reliability of operation. Claims A tape drive control device comprising a power source, a matching circuit, a one-shot, a control signal generator, the output of which is connected to the input of the one-shot and to one of the inputs of the match circuit, the other input of which is connected to the output of the single-shot, first and second electromagnet. the first and second electronic switches, the power input bus of the first and the power input bus of the second of which are connected to the first terminal of the first and to the first terminal of the second electromagnets, respectively, and the regulating element, in order to reduce the number of failures by optimizing conditions of the elements, it is equipped with a reference voltage adjuster and a control element, while the power output bus of the first and power output bus of the second electronic keys are connected to the negative and positive floor the power source itself, respectively, the control input of each of the electronic switches is connected to the one-shot output, the power circuit of the regulating element is connected between the first terminals of the electromagnets, the control input of the regulating element is connected to the output of the reference voltage setting device, the input of which through the control element is connected to the output of the circuit match, and the second terminal of the first electromagnet and the second terminal of the second electromagnet are connected to the positive and negative terminals of the power source. Sources of information taken into account in the examination 1. Germany patent No. 2443877, cl. G 11 V 15/08, published 1976.

2. USSR author's certificate number 756474, cl. G 11 B 15/18, 1978 (protype).