SU864558A1

SU864558A1 - Switching device

Info

Publication number: SU864558A1
Application number: SU792845078A
Authority: SU
Inventors: Анатолий Антонович Попов; Валерий Александрович Мантузов; Геннадий Филиппович Фролов
Original assignee: Предприятие П/Я Г-4805
Priority date: 1979-11-26
Filing date: 1979-11-26
Publication date: 1981-09-15

Description

Изобретение относится к коммутационной технике, а более конкретно к электронной коммутационной технике, и может быть использовано, например, _ в аппаратуре контроля и управления ³производственными процессами.The invention relates to switching equipment, and more particularly to electronic switching equipment, and can be used, for example, in control and management equipment for ³ production processes.

Известно коммутирующее устройство, содержащее два ключевых транзистора и дистанционный переключатель, обмотки дистанционного переключателя вклю- ^и чены в коллекторные цепи коммутирующих транзисторов, базы которых под-, ключены к шинам управления £1].Known switching device comprising two switching transistors and a remote switch, coil control switch ^and cheny included in the collector circuit of switching transistors, the base of which sub-key to control lines £ 1].

К недостаткам устройства Относятся сложность конструкции и низкая надежность функционирования.The disadvantages of the device are design complexity and low reliability.

Наиболее близким по технической сущности и схемной реализации к предлагаемому является коммутирующее устройство, содержащее ключевой.транзистор, дистанционный переключатель, диод, резистор и управляющий ключ, первая обмотка дистанционного переключателя включена между первой шиной источника питания и коллектором клю левого транзистора, база которого через резистор соединена с первой шиной источника питания, а через управляющий ключ подключена ко второй шине источника питания [2].The closest in technical essence and circuit implementation to the proposed one is a switching device containing a key transistor, a remote switch, a diode, a resistor and a control key, the first winding of the remote switch is connected between the first bus of the power source and the collector of the left transistor, the base of which is connected through a resistor with the first bus of the power source, and through the control key is connected to the second bus of the power source [2].

Недостатками известного устройства являются сложность конструкции и значительная потребляемая мощность.The disadvantages of the known device are the design complexity and significant power consumption.

Цель изобретения - упрощение конструкции и снижение потребляемой мощности .The purpose of the invention is to simplify the design and reduce power consumption.

Цель достигается тем,что в коммутирующем устройстве, содержащем ключевой транзистор, дистанционный переключатель, диод, резистор и управляющий ключ, первая обмотка дистанционного переключателя включена между первой шиной источника*питания и коллектором ключевого транзистора,база которого через резистор соединена с первой шиной источника питания,а через управляющий ключ подключена ко второй шине источника питания, вторая обмотка дистанционного переключателя включена между первой шиной источника питания и нормально замкнутым неподвижным контактом дистанционного переключателя, нормально разомкнутый неподвижный контакт которого соединен со второй шиной источника питания, переключающий контакт дистанционного переключателя соединен с эмиттером ключевого транзистора, а встречно-параллельно базо-эмиттерно3 му переходу ключевого транзистора включен диод.The goal is achieved in that in a switching device comprising a key transistor, a remote switch, a diode, a resistor and a control key, the first winding of the remote switch is connected between the first bus of the power supply * and the collector of the key transistor, the base of which is connected through the resistor to the first bus of the power source, and through the control key it is connected to the second bus of the power source, the second winding of the remote switch is connected between the first bus of the power source and the normally closed the other contact of the remote switch, the normally open fixed contact of which is connected to the second bus of the power source, the switching contact of the remote switch is connected to the emitter of the key transistor, and a diode is turned on in parallel to the base-emitter junction of the key transistor.

На чертеже изображена принципиальная схема коммутирующего устройства.The drawing shows a schematic diagram of a switching device.

Устройство содержит ключевой транзистор 1, первую и вторую 3 обмотки дистанционного переключателя, подключенные к первой шине 4 источника питания, нормально замкнутый неподвижный контакт 5 дистанционного переключателя, нормально разомкнутый неподвижный контакт 6 дистанционного переключателя, подключенный ко второй шине 7 источника питания, переключающий контакт 8 дистанционного переключателя, диод 9, резистор 10, управляющий ключ Непараллельно обмоткам дистанционного переключателя включены шунтирующие диоды для замыкания ЭДС самоиндукции.The device comprises a key transistor 1, first and second 3 windings of a remote switch connected to the first bus 4 of the power source, a normally closed fixed contact 5 of the remote switch, a normally open fixed contact 6 of the remote switch connected to the second bus 7 of the power source, switching contact 8 of the remote switch, diode 9, resistor 10, control key Non-parallel to the windings of the remote switch are connected bypass diodes to close the EMF self-inductor tion.

Устройство функционирует следующим образом.The device operates as follows.

в исходном состоянии управляющий ключ 11 разомкнут и обмотки 2,3 переключателя обесточены. При замыкании управляющего ключа 11 вторая обмотка 3 через контакты 5 и 8 дистанционного переключателя, диод 9 и управляющий ключ 11 подключается ко второй шине 7 источника питания. По обмотке 3 начинает протекать ток, контакты 5 и 8 размыкаются, а контакты 6, 8 замыкаются. Обмотка 3 обесточивается. Это второе устойчивое состояние устройства. При размыкании управляющего ключа 11 отпирается ключ'евой транзистор 1. Через первую обмотку 2 дистанционного переключателя начинает протекать ток. Контакты 6 и 8 переключателя размыкаются, а контакты 5 и 8 замыкаются. Обмотка 2 обесточивается и устройство возвращается в исходное состояние.in the initial state, the control key 11 is open and the windings 2,3 of the switch are de-energized. When the control key 11 is closed, the second winding 3 through the contacts 5 and 8 of the remote switch, the diode 9 and the control key 11 is connected to the second bus 7 of the power source. A current starts flowing along winding 3, contacts 5 and 8 open, and contacts 6, 8 close. Winding 3 is de-energized. This is the second stable state of the device. When the control key 11 is opened, the key transistor 1 is unlocked. Current flows through the first winding 2 of the remote switch. Contacts 6 and 8 of the switch open, and contacts 5 and 8 are closed. Winding 2 is de-energized and the device returns to its original state.

Коммутирующее устройство отличают простота конструкции и малая потребляемая мощность. Когда устройство находится в исходном состоянии, то ток в цепи управления не потребляет5 ся.The switching device is distinguished by its simplicity of design and low power consumption. When the device is in the initial state, the current in the control circuit is not consumed5.

Claims

one . The invention relates to switching technology, and more specifically to electronic switching technology and can be used, for example, in equipment for monitoring and controlling production processes. A switching device containing two key transistors and a remote switch is known, the windings of the remote switch are included in the collector circuits of switching transistors, the bases of which are connected to the control switch Cl. The disadvantages of the device include design complexity and low reliability of operation. The closest in technical essence and circuit implementation to the proposed is a switching device containing a key switch. A transistor, a remote switch, a diode, a resistor and a control key, the first winding of the remote switch is connected between the first power supply bus and the key transistor. The cut resistor is connected to the first power supply bus, and the control key is connected to the second power supply bus. The disadvantages of the known device are difficulties l design and significant power consumption. The purpose of the invention is to simplify the design and reduce power consumption. The goal is achieved by the fact that in a switching device containing a key transistor, a remote switch, a diode, a resistor and a control key, the first winding of the remote switch is connected between the first power supply bus and the collector of the key transistor, the base of which is connected to the first power supply bus and through the control key is connected to the second power supply bus, the second winding of the remote switch is connected between the first power supply bus and the normally closed not odvizhnym remote terminal switches, a normally open fixed contact of which is connected to the second bus of the power supply, remote switch contact of the switch is connected to the emitter of transistor and antiparallel Bazo-emitter junction of transistor included liod. The drawing shows a schematic diagram of the switching device. The device contains a key transistor 1, the first and second 3 windings of the remote switch connected to the first bus 4 of the power supply, a normally closed fixed contact 5 of the remote switch, a normally open fixed contact b of the remote switch connected to the second power supply bus 7, a switching contact 8 of a remote switch, a diode 9, a resistor 10, a control switch 11. Parallel to the windings a remote The shunt diodes for closing the EMF of self-induction are connected to the switch. The device operates as follows. in the initial state, the control switch 11 is open and the windings of the 2.3 switches are de-energized. When the control key 11 B1 is closed, the winding 3 through the contacts 5 and 8 of the remote switch, the diode 9 and the control key 11 is connected to the second pin 7 of the power supply. The coil 3 begins to flow, contacts 5 and 8 open, and contacts 6, 8 close. Winding 3 is de-energized. This is the second steady state of the device. When the four-time control key 11 is opened, the junction transistor 1 is opened. A current begins to flow through the first coil 2 of the remote switch. The contacts 6 and 8 of the switch are opened, and clocks 5 and 8 are closed. Winding 2 is de-energized and the device returns to its original state. A switching device is distinguished by its simplicity of design and low power consumption. When the device is in the initial state, the current in the control circuit is not consumed. The invention includes a switching device containing a key transistor, a remote switch, a diode, a resistor and a control 1: switch, the first winding of the remote switch is connected between the first power supply bus and the collector of the key transistor, the base of which is connected to the first power supply bus through a resistor The control key is connected to the second power supply bus, characterized in that, in order to simplify the design and reduce the power consumption, the second winding of the remote power supply the switch is connected between the first power supply bus and the normally closed fixed contact of the remote switch, the normally open fixed contact of which is connected to the second power supply bus, the switching switch of the remote switch is connected to the emitter of the key transistor, and the opposite side of the key transistor diode is turned on . Sources of information taken into account in the examination of I 1. USSR authorization certificate 572928, cl. Н03 К 17 / 60,26.06.75.

2. Copyright Testimony- USSR №, 44079-1, cl. Н03 К 17 / 00,14.03.74.