SU1541773A1 - Conversion flip-flop - Google Patents

Abstract

The invention relates to a pulse technique and can be used to convert signals in various devices of discrete automation. The aim of the invention is to increase the reliability and expansion of the range of relays used. The device contains a relay 1.1 with closing group 1.2, remote switch 2.1 with switching 2.2, closing 2.3 and opening 2.4 contacts, the first diode 3, the first 4 and the second 7 input buses. To achieve the goal, the second, third, fourth, fifth, sixth, seventh, eighth, ninth, and tenth diodes 5,6,8,9,1,11,12,13,14 and new functional connections are introduced into the device. 1 il.

Description

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The invention relates to a pulse technique and can be used to convert signals in various devices of discrete automation.

The purpose of the invention is to increase the reliability and expand the range of relays used.

The drawing shows an electrical schematic diagram of a relay trigger.

The trigger converter contains a relay 1.1 with a closing contact group 1.2 and a remote switch 2.1 with a switching 2.2, a closing 2.3 and a closing 2.4 kbnaktyami, the first terminals of the relay windings and the remote switch are combined. The second output winding of the relay 1.1 is connected to the switching contact 2.2 of the remote switch 2.1 and through the reverse connected first 3 diode to the first output of its own normally open contact 1.2 The connection point of the first winding terminals of the remote switch 1 to the relay 1.1 is connected to the first input bus 4,

The first output of the closing contact group 1.2 of the relay 1.1 is connected via the directly connected second 5 and third 6 diodes connected respectively to the second input bus 7 and the second output of the first winding of the remote junction | yyuchytel 2.1, the second output of the closing contact groups 1.2 relays through the fourth 8 returned, powered 9 and sixth 10 diodes are connected respectively to the second terminals of the relay winding 1.1, the second winding of the remote switch 2.1 and the second input bus 7, which through the reverse connected seventh diode 1 is connected to the closing contact 2.3 and, through the directly connected eighth diode 12, with the opening contact 2.4 of the remote switch 2.1. The closing 2.3 and disconnecting 2.4 contacts of the remote switch 2.1 through the directly switched on ninth 15 and the reverse connected tenth 14 diodes are respectively connected to the first input bus 4.

The trigger converter performs the function of an RS flip-flop. Its zero state is determined by the position of the contacts 2.2-2.4 of the remote switch 2.1, which is fixed

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as a result of the operation of the remote switch 2.1 by its zero (right in the drawing) winding. Tires 4 and 7 are respectively the R and S inputs of the trigger. The logic of the trigger is considered positive with lo0

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, characterized by zero, and logical 1 - by positive potentials. In the initial state, which coincides with zero, the potentials of logical O. are applied to both trigger inputs.

Trigger converter works

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When logical 1 is established on bus 7, a relay 1.1 power supply circuit is formed: bus 7, diodes 12, contacts 2.2 and 2.4 of the remote switch 2.1, relay 1 winding. 1, bus 4, the internal resistance of the zero-state source of R-signals, the total - sources of signals. Relay 1.1 is activated, closing contact 1.2 and self-locking on the circuit: bus 7, diode 10, contact 1.2, diode 3, relay winding 1.1, bus 4, internal resistance of the source of R-signals, common - signal sources. With the closure of contact 1.2, relay 1.1, the single winding (left in the drawing) is energized by the winding of the remote switch 2.1. The latter activates and transfers the switching contact 2.2 to the position of closure with contact 2.3, and the winding of the relay 1.1 bypasses. Last lets go, open your contact 1.2. The excitation of the single winding-remote switch 2.1 is terminated and the trigger converter is fixed in the single state determined by the new position of the contacts 2.2-2.4 opposite to that shown.

When logical 1 is established on bus 4, a power supply circuit of relay 1.1 is formed: bus 4, relay winding 1.1, contacts 2.2 and 2.3 of remote switch 2.1S diode 13, bus 7, internal resistance is located. state in the zero state of the source of 3 signals, common - sources of signals. Relay 1.1 is triggered, the latch is contact 1 - 2 and self-locking along the circuit: bus 4, the winding of the relay is the internal resistance of the S-signal source, and the common winding - of the sources. With the closure of contact 1.2, relay 1.1, the zero winding is energized by distance5

switch 2.1. The latter triggers and transfers the switching contact 2.2 to the closure position with contact 2.4, shunt the relay winding 1.1. The last one releases, opens its contact 1.2. The excitation of the zero winding of the remote switch 2.1 is terminated and the trigger is fixed at the zero state defined by the shown position of the contacts 2.2-2.4.

When a logical 1 is established simultaneously on buses 4 and 7, the trigger state does not change.

Claims (1)

Formula invented and The trigger converter, the relay contents and the remote switch, the first terminals of the windings of which are combined, the second terminal of the relay coil is connected to the switching contact of the remote switch and through the first diode is switched back on to the first terminal of its own closing contact group, which is with 41773 the purpose of increasing the reliability and expanding the range of used relays, the connection point of the first terminals, the winding of the remote switch, and the relay connected to the first input bus, the first output of the closing contact group of the relay through the directly connected second and third diodes Yu is connected respectively to the second input terminal and to the second output of the first winding of the remote switch, and the second output of the closing contact of the relay through back) 5 included the fourth, fifth and test The diodes are connected respectively to the second terminals of the relay coil and the second winding of the remote switch and the second input bus, which is connected back to the secondary one through the back switched on seventh diode, and eight second diode -.s remote NC contacts of switch, normally open and different contacts 25 remote roam the switch through the directly connected ninth and reverse tenth diodes are respectively connected to the first input bus.