SU879779A1 - Relay flip-flop - Google Patents

Description

one

The invention relates to a pulse technique and can be used in automation and remote control systems with increased requirements for reliability and for clarification of various information about the operation of the system.

A relay device containing a self-holding electromagnetic relay and two IJL 3 electromagnetic relays is known.

Disadvantage - provides a limited amount of information about the operation of the device.

Known relay trigger containing two-winding relay with self-holding, two relays with switching and closing contact groups every 2,

The disadvantages of the known trigger are low reliability due to the increased current load on the closing contacts, because the windings of their relays and the two-winding self-holding relay are fed through them, the limited amount of information removed, since it is not possible to simultaneously receive information about the state of the trigger in pauses between pulses and transfer and borrow signals, as well as limited functionality when building on its basis counters, where both unipolar and multiple parameters are required molecular weight with a countable pulse signals and transfer loan.

The aim of the invention is to increase the reliability and expansion of the amount of information removed.

This goal is achieved by the fact that

A 10 relay trigger containing a self-holding two-winding relay, a first and a second relay, each of which has switching and closing contact groups with disconnected outputs, between the first and second control inputs are two parallel circuits, each of which has a series of switching and breaking contacts switching

20 contact groups of one relay, winding and closing contact of another relay, the connection points of which with the relay windings are connected to the first and second outputs of the status signals

25 and to the fixed contacts of the switching contact group of a self-holding two-winding relay, the switching contact of which is connected to the second control input of the trigger and to. The first 30 pins of the windings of a self-holding dual-winding relay, the second pins of which are connected to the closing contacts of the switching contact groups of the first and second relays and to the transfer and borrow outputs, respectively.

In addition, in order to expand the functionality between the fixed contacts of the switching contact group of the self-deactivating two-winding relay and the closing contacts of the first and second relays, respectively, decoupling diodes are included.

FIG. 1 is a diagram of a trigger; FIG. 2 - trigger relay state diagrams.

The trigger contains a two-winding relay 1 with self-holding with windings 2, 3 and a switching contact group 4, a relay 5 with contact groups 6, 7 and a relay 8 with contact groups 9, 10, control inputs 11, 12, outputs 13, 14 of the loan and transfer signals respectively, one polarity and the outputs 15, 16 of the trigger state signals, the signals from which are taken relative to the input 17 of connecting one of the poles of the power supply, the other pole of which is connected to the input 12 or 11. Due to the presence of diodes 18 and 19, it is possible to remove inverse carry signals and for ma respectively with outputs 20 and 21.

In Fig. 1, for definiteness, it is assumed that the positive and negative poles of the power supply are connected respectively to inputs 17 and 12, and the counting pulse of positive polarity is fed to input 11. Signals of corresponding polarity obtained during the operation of a trigger are shown in FIG. 2 at the outputs 13 and 14 relative to the entrance 12 (Fig. 2e, e), ka outputs 15, 16, 20, 21 relative to the entrance 11 (Fig. 2g, h, d, m). In addition, in FIG. 2 shows the signals from outputs 15 and 16 relative to input 17, (Fig. 2i, k), as well as the states of contacts 6, 7 (Fig. 2.6) of relay 5, contacts 9, 10 (Fig. 2, c) of relay 8, contacts 4 (fig. 2, d) of relay 1 and counting pulses (fig. 2, a).

Trigger works as follows.

In the initial state, the trigger is in the position shown in FIG. 1- relays 5, 8 are de-energized, rfa: there is no signal at input 11, a negative signal is output from output 16 (Fig. 2, k).

When the first counting pulse arrives through the winding of the relay 5 through circuit 11, group 9, relay 5, group 4, input 12, the current flows, relay 5 switches its contact groups 6, 7, resulting in relay 1 through circuit 2 through input 11 group 6 — winding 2 — input 12 is flowing, relay 1 is activated by switching group 4, and relay 5 continues to be in a driven state through the self-blocking circuit input 11 group 9 — relay 5 — group 7 — input 12, At output 13 a positive signal, at the output 15 - a negative signal, at the output 16 the negative ny signal. After removing the counting pulse, the signal at the outputs 13, 12 is also removed (this is the loan signal), since in this case the relay

5 is turned off, then the signal from output 16 is also removed. The trigger has switched from zero to one state (in the pause between pulses at output 15, a negative signal}.

When a second counting pulse arrives, the relay coil 8 flows through the current (input 11 circuit –– group 6 relay 8 –– group 4 – input 12), which operates and winds 3 relays 1 along input 11 –– group 9 winding 3 – input 12. Relay 1 triggers and switches contact 4 to its initial state, breakage of the relay coil circuit 8, which, however, continues to maintain the triggered state of the self-blocking circuit input 11 - group

6- relay 8 — group 10 — input 12. Signals appear at outputs 14 (transfer signal) 16 (zero-state signal of a trigger). After the second counting pulse is removed, the relay 8 de-energizes and the trigger circuit returns to the initial state shown in fig. 1, with this, the output signals disappear (Fig. 2, e, i).

With the circuit shown in Fig. 1, the signals from the outputs 15 and 16 relative to the input 11 appear at each counting pulse, have about: positive polarity, but in no way the triggering function of the trigger.

By introducing additional diodes 18 and 19 into the trigger and connecting one of their outputs to the outputs 20 and 21, from the outputs 20, 11 and 21, 11 (Fig. 2, d, m), you can remove the transfer and loan signals, respectively, and the inverse field to counting pulses and to transfer and borrow signals taken from outputs 14 and 13. This extends the functionality of the trigger.

Each contact of the device operates on no more than one winding of the relay, i.e. in a lightweight way up compared to limescale trigger schemes. In addition, diodes 18 and 19 may be absent in the trigger if it is not required to have signals of transfer and borrowing of inverse polarity. The presence of diodes expands the functionality of the trigger, so the hack can be used in circuits requiring inverse signals of reception and borrowing, as well as direct and inverse simultaneously, for example, with the aim of increasing external load and increasing informativity or reducing the load on individual contacts.

Claims (2)

1. Relay trigger containing a self-holding two-winding relay, the first and second relays, each of which has switching and contacting contact groups with disconnected leads, characterized in that, in order to increase the reliability and expand the amount of information removed, there is in it between the first and second control inputs include two parallel circuits, in each of which the switching and opening contacts of the switching contact group of one relay, the winding and the closing contact of the other relay, point are connected in series Connections with the windings of the relay are connected to the first and second outputs of the state signals and to the fixed contacts of the switching contact group of the self-holding two-winding relay, the switching contact of which is connected to the second control input of the trigger and to the first terminals of the windings of the two-winding relay with self-holding, the second terminals of which are connected to the switching contacts switch the contact groups of the first and second relays and to the transfer and loan outputs, respectively. 0 2. Relay trigger according to claim 1, differing in that, p. In order to expand the functionality, between fixed contacts with a switch of a contact group, S self-holding two-winding relay and closing contacts of the first and second relays, respectively, are connected dissociating diodes. 0 Sources of information taken into account in the examination 1. USSR author's certificate No. 632096, cl. H 03 K 23/25, 1977. 2, USSR Author's Certificate 5444331, cl. H 03 K 23/03, 1973. Jl // 0-Н / 7 0 / e l Af f JL GTTT