SU1078621A1 - Relay flip-flop - Google Patents

Abstract

RELAY TRIGGER containing first and second turnips, first and second diodes and a resistor, the first output of which is connected to an amp amp bus, the second to the first terminals of the windings of the first and second relays, the second outputs of the windings of which are connected to the first terminals of the first and second diodes, the second terminals of which are combined, the second terminal of the winding t / of the first relay is connected to its closing contact, the switch contacts of the first relay are connected to the power bus, the disconnecting - to the second terminal of the winding of the second relay; The switch is connected to the second output of the resistor, so that, in order to expand the scope of the trigger, the second leads of the first and second diodes are connected to the zero-set pulse busbar and to the closing contact of the second relay, the switching contact of which is connected to the counting bus impulses, disconnecting {th contact - to the bus of setting impulses of a single state, the closing contact of the first (the first relay is connected to the single output bus, and its disconnecting contact - to the zero output bus.

Description

ji

..Yes

3Z

18

5k

fO 9

T

The invention relates to a pulse technique and can be used in various devices of discrete automation, for example, in the construction of registers, counters, etc.

A relay trigger is known, containing two single-winding relays with short-circuiting and switching with atsy contact groups, two resistors and a diode l.

The disadvantage is the uneven load on the power supply, since either both relays are on or off.

The closest in technical essence to the present invention is a relay trigger containing the first and second relays, the first and second diodes and a resistor, the first of which is connected to the common bus, the second to the first terminals of the windings of the first and second relays, the second terminals of the windings of which are connected to the first terminals the first and second diodes, the second terminals of which are combined, the second terminal of the winding of the first relay is connected to its closing contact, the switch contact of the first relay is connected to the power bus, the disconnecting contact to the second output of the winding and a second relay, the break contact of which is connected to the second output of the resistor 2j.

A disadvantage of the known device is the limited scope, since it can only work in counting mode.

The purpose of the invention is to expand the scope, more specifically: to enable the trigger to operate in both the counting mode and the trigger mode with separate control inputs (1 5 trigger).

The goal is achieved by the fact that in a relay trigger containing the first and second relays, the first and second diodes and a resistor, the first terminal of which is connected to the common bus, the second to the first terminals of the windings of the first and second relays, the second terminals of the windings of which are connected to the first terminals the first and second diodes, the second conclusions of which are combined,

the second terminal of the winding of the first relay is connected to its closing contact, the switching contact of the first relay is connected to the power bus, the disconnecting contact is connected to the second winding of the second relay, the breaker contact of which is connected to the second one

the resistor, the second terminals of the first and second diodes are connected to the zero-set pulse busbar and to the second contact relay contact, the switching contact of which is connected to the counting pulse bus, the disconnecting switch is connected to the single state setup pulse busbar, the first relay contact is connected to the unit one output or not, and its normally open contact to the zero output bus.

FIG. 1 is a schematic diagram of a relay trigger; Fig. 2 shows time diagrams of his work, where the voltages on the elements with the corresponding number are shown.

Relay trigger contains first and second relays 1 and 2, first and second DJO 3 and 4, resistor 5, common bus b, power bus 7, switching 8, closing 9, disconnecting 10, switching 11, closing 12 and disconnecting 13 contacts, bus 14 counting pulses, a zero state setting bus 15, a single state setting bus 16, a single output bus 17, a zero output bus 18.

The device works as follows.

In the initial position, relay 2 is turned on, its contacts 11 and 12 are closed, there is a signal on bus 18 (O). When applying to the bus 14 (l) of the first pulse with a duration longer than the time of operation of the relay through the contacts 11 and 12 of the relay 2, the relay 1 turns on and closes the contacts 8 and 9, signaling the bus 17 (l). At the same time, relay 1 becomes self-blocking. At the moment the pulse ends on bus 14, relay 2 releases, the signal from bus 18 (o) is removed. At the moment of arrival of the second pulse to the bus 14, the relay 1 is reset. When the pulse from the bus 14 is removed, the trigger will take the initial position, i.e. relay 2 will operate.

When signals are applied to buses 15 (R) and 16 (S), the trigger works as an RS trigger.

The technical and economic effect of the application of the present invention lies in the fact that by changing the connections, the application is extended, i.e. The trigger can work both in the counting mode and in the R5-trigger mode.

GI // And f

rr

E

Y //////// A A //////// L

////////// Л

ig.2

Claims (1)

RELAY TRIGGER, containing the first and second relays, the first and second diodes and a resistor, the first output of which is connected to a common bus, the second - to the first outputs of the windings of the first and second relays, the second outputs of the windings of which are connected to the first outputs of the first and second diodes, second outputs which the combined second output of the winding of the first relay is connected to its to the make contact, the switching contact of the first relay is connected to the power bus, the disconnecting to the second terminal of the second relay winding, the opening contact of which is connected to the second output of the resistor, distinguish the fact that, in order to expand the scope of the trigger, the second conclusions of the first and the second diodes are connected to the pulse bus of the zero state setting and to the make contact of the second relay, the switching contact of which is connected to the bus of the counting pulses, the open contact is to the pulse bus of the unit $ g In addition, the make contact of the first relay is connected to a single output bus, and its make contact to the zero output bus.