SU917354A1

SU917354A1 - T flip-flop

Info

Publication number: SU917354A1
Application number: SU802981763A
Authority: SU
Inventors: Михаил Андреевич Холодный
Original assignee: Kholodnyj Mikhail A
Priority date: 1980-07-14
Filing date: 1980-07-14
Publication date: 1982-03-30

Description

(S) ТРИГГЕР СО СЧЕТНЫМ ВХОДОМ(S) TRIGGER WITH COUNTABLE INPUT

II

Изобретение относитс к автоматике и может быть использовано в различных устройствах счета и запоминани импульсов.The invention relates to automation and can be used in various pulse counting and storing devices.

Известен триггер, содержащий . электромагнитное реле, резистор, RC-цепь, динистор, подключенный через переключающий контакт параллельно обмотке реле, шины питани , управл ющую и выходную шины.Known trigger containing. electromagnetic relay, resistor, RC circuit, dynistor connected via a switching contact in parallel with the relay coil, power bus, control and output busbars.

Недостатком триггера вл етс ограничение на дл ительность импульса управлени lj.;The disadvantage of the trigger is the limitation on the control pulse duration lj.

Известен триггер, содержащий ; электромагнитное реле, конденсаторы, резисторы, входные переключающий, замыкающий и размыкающий контакты, входную и выходную шину и замыкающий выходной контакт, один вывод обмотки реле через входные размыкающий и переключающий контакты подключен, к входной шине, через резистор к одной.клемме источника питани и через конденсатор к другой клеммеKnown trigger containing; electromagnetic relay, capacitors, resistors, input switching, closing and disconnecting contacts, input and output bus and closing output contact, one output of the relay winding through the input disconnecting and switching contacts connected to the input bus, through a resistor to one power supply terminal and through capacitor to another terminal

|источника питани , к которой через выходной замыкающий контакт подключена выходна шина и через параллельную RC-цепь - второй вывод обмотки реле и входной замыкающий контакт 2j,| power source, to which the output bus is connected through the output closing contact and through the parallel RC circuit - the second output of the relay coil and the input closing contact 2j,

Недостатком известного триггера вл етс ограничение на длительность импульса управлени , необходимого дл обеспечени нормальной работоспособности схемы.A disadvantage of the known trigger is the limitation on the duration of the control pulse necessary to ensure the normal operation of the circuit.

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Цель изобретени - устранение ограничени на длительность импульса управлени .The purpose of the invention is to eliminate the limitation on the duration of the control pulse.

Поставленна цель достигаетс тем, что в триггер со счетйым входом, The goal is achieved by the fact that in a trigger with a counting input,

15 содержащий основное реле, к первому выводу обмотки которого подключена перва обкладка конденсатора и первый вывод первого резистора, второй вывод которого подключен к первой 15 containing the main relay to the first terminal of the winding of which is connected the first capacitor plate and the first terminal of the first resistor, the second terminal of which is connected to the first

Claims

20 to the power bus, the second output winding of the main relay through the second resistor is connected to the second power bus, an additional relay is inserted, the winding of which is connected between the input bus and the first power bus to which the wiring contact of the new relay is connected to the second power bus, and the switching contact to the closing contact of the auxiliary relay, the opening contact of which is connected to the second terminal on the coil of the main relay, and the switching contact to the second capacitor plate. The drawing shows the principle of the trigger scheme with a counting input. In the trigger containing the main relay 1, the first capacitor plate 2 and the first terminal of the resistor 3 are connected to the first winding lead; an additional relay 7, the winding of which is connected between the input bus 8 and the power bus C, to which the closing contact 9 of the main relay 1 is connected, opening contact 10 of which is connected to the power bus 6, and switching to cycle 11 - to the opening contact 12 of the relay 7, opening The contact pin 13 of which is connected to the second terminal of the winding of the main relay 1, and the switching contact 14 to the second plate of the capacitor 2. The device works the next time. In the initial state, from the bus b (for example, positive) to the bus k, through the resistors 5, 3 and the winding of the relay 1, a blocking current Ig. Flows, satisfying the condition:. (S1 release current of relay 1J II .. blocking current of relay 1} is the current of thorn relay 1. At this moment relay 1 is in the initial (, unworked) state. When the output pulse of relay 7 is received on bus 8, capacitor 2 through the contacts 10, P, 12, the resistor 3 is charged to the value of the power supply voltage (plus on the top plate). After the input pulse is terminated, relay 7 releases and the charged capacitor 2 is connected in parallel through contacts l and 13 in parallel. the expense of the stored electrical energy increases the current Tku relay 1 to 1p, where Ip current through the winding of relay 1. Relay 1 is activated and blocked through resistors 2 and 3 as the current through the winding of the relay satisfies condition (1), as a result, contacts 9 are closed. Relay 7 is again triggered to bus 8 and, with its closed contacts 9 and 11, discharges capacitor 2 through limiting resistor 3. After the input impulse stops, relay 7 releases and contacts 3 and 14 of relay 7. short circuit, connect the discharged capacitor 2 to the relay winding 1 as a result of the current through the winding relay 1 is reduced at a time to a value 1p .-, Tn 1, and releases the relay contacts 9 and the relay 7 are opened II, i.e. the device returns to its original position. When the next counting pulses arrive on bus B, the operation cycle of the device is repeated. The trigger with a counting input, containing the main relay, the first terminal of the winding of which is connected to the first capacitor plate and the first terminal of the first resistor, the second terminal of which is connected to the first power bus, the second terminal of the main relay winding is connected This is because, in order to eliminate the limitation on the duration of the control pulse, an additional relay is inserted in the trigger, the winding of which is connected between the input bus and the first power bus, to which the closing contact of the main relay is connected, the opening contact of which is connected to the second power bus, and the switching contact is connected to the closing contact of the additional relay, the breaking contact of which is connected to the second output winding of the main relay, and the switching contact to the second capacitor plate. Sources of information taken into account in the examination 1. USSR author's certificate 422109, cl. H 03 K 23/03, 07.27-72.

2. USSR author's certificate N651456, cl. H 03 K 23/03, 09.22.77.,

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