SU1221741A1 - Relay flip-flop - Google Patents

Abstract

The invention relates to a pulse technique and can be used in remote control devices in which it is necessary to store information when the supply voltage is disconnected. The purpose of the invention — an increase in the reliability of the relay trigger — is achieved by decreasing the 15IS 20 Y f f-1 7 / JF. I1 1-y 10 GTT by demanding the required number of contact elements. The trigger contains a relay with windings 1 and 2, a relay with winding 3, a diode 4, a transistor 5, a resistor 6. A relay with a winding 3 has a switching contact group 7, which contains a switching contact 8, a disconnecting contact 9 and short-circuit contact 10. Relay windings 1 and 2 contains a switching contact group 11 with contacts: switching 12, opening 13 and closing 14. The trigger has pulse outputs 15 and 16 and potential 20 and 21. Contact 8 is connected to the power bus 18 via control contacts 19. To achieve goal in the device enter our transistor 5 and resistor 6. 1 -IL. i (L -1 zr Jf 19} 5 22

Description

The invention relates to a pulse technique and can be used in remote control devices in which it is necessary to store information when the supply voltage is disconnected.

The purpose of the invention is to increase the reliability of operation by reducing the required number of contact elements.

The drawing shows the electrical circuit of the device.

The relay trigger contains a relay with windings 1 and 2, a relay with winding 3, a diode 4, a transistor 5, a resistor 6. A relay with a winding 3 is equipped with a switching contact 7, which has a switching contact 8, an opening contact 9 and a closing contact 10. Relay windings 1 and 2 are equipped with a switching contact group 1, which has a switching 12, a disconnecting 13 and a shorting 14 contacts.

The first terminals of windings 1 and 2 are connected to contacts 9 and 10, respectively, and are pulse outputs 15 and 16 of a flip-flop. The contact 10 is connected through the diode 4 in the forward direction to the first terminal of the winding 3, the second terminal of which is connected to the first power bus 17 and the second terminals of the windings 1 and 2. The terminal 8 is connected to the second power bus 18 via control contacts 19.

The resistor 6 is connected between the contact 9 and the base of the transistor 5, the collector of which is connected to the first output of the winding 3, and the emitter is connected to the contact 14.

Pin 12 is connected to bus 18, and pins from pins 13 and 14 are potential outlets 20 and

21 trigger.

The trigger works as follows.

In the initial state, windings 1, 2 and 3 are in a de-energized state, contacts 9 and 13 are closed, and contacts 10 and 14 are open.

Upon receipt of a positive polarity pulse to the counting input

22 (a positive polarity pulse can be formed by briefly closing the contacts 19) the current flowing through the contacts 8 and 9, the winding 1 of the two-winding relay, causes the contacts of the two-winding relay to switch, i.e.

2217412

closing the contact 14, which switches the potential output 21 and prepares the operation circuit of the relay with winding 3 (the relay with winding 3 cannot work because the transistor 5 is closed when the contacts 19 are closed because its base is connected to the positive bus 18) . Simultaneously positive momentum

 polarity appears at exit 15 of the trigger.

Upon completion of the input pulse (when the contacts 19 are opened), the transistor 5 is turned on, the switch 5 is activated with the winding 3, and the contact 9 is opened and the contact 10 is closed.

When the second pulse of positive polarity arrives at the counting input 22, a current flow circuit through pin 10 and a winding 2 of a self-holding two-winding relay form. At the same time, this pulse appears at the output 16, and through the diode 4 a release delay of the relay with a winding 3 for the duration of the pulse is effected. In this case, the contact 14 is opened, and the contact 13 is closed, connecting the potential output 20.

At the end of the input pulse, the relay with the winding 3 is released, its contact 10 is opened, and the contact 9 is closed, and the circuit returns to its initial state.

When subsequent clock pulses are applied, the cycle of operation of the device is repeated.

25

Claims (1)

40 claims Relay trigger containing single-winding relay and self-holding double-winding relay, first outputs 45 windings of which are connected to the opening and closing contacts of the switching contact group of a single-winding relay, the closing contact of the switching contact group of one 50 winding relay is connected through a diode in the forward direction to the first terminal of the winding of its relay, the second terminal of which is connected to the first power bus and second terminals the current of the dual-winding relay is self-holding, and the switching contact of the switching contact group of the single-winding relay is connected to the second bus 3 12217414 No power through control contact-winding relay, the first end of the winding, characterized in that the ci is connected to the collector that, in order to increase the reliability of the transistor, and the emitter of the transistor work, it introduced a transistor and connected to the second power bus through a resistor connected between the base 5 closing contact group transistor and the break contact of a two-winding relay with a self-holding switching contact group of one-nium.