SU627563A1 - Relay flip-flop - Google Patents

Description

The invention relates to a pulse technique and can be used in automation devices, control and measuring and computing devices.

A relay trigger is known, controlled by signals of unlimited duration and containing a remote switch and two relays, the first winding pins of which are connected to the corresponding trigger inputs, and the second pins through the closing and disconnecting contacts of the remote switch to the power bus.

A trigger with a counting input is also known. It contains a polarized relay with two windings, each of which is connected to one capacitor plate, one contact of a contact pair of this relay and a blue diode corresponding to the thyristor anode, the cathode of which is connected to the second capacitor plates and the anode an additional diode, the cathode of which is connected to the negative power bus and to the control electrode

torus, which through re; health is connected to the thyristor anode 2j.

A disadvantage of known triggers is the lack of a clock input, as well as the impossibility of supplying stop signals to both trngers simultaneously, since in this case the triggers turn into generators, which leads to a rapid development of the resource to trigger the relay bath.

The aim of the invention is to provide the ability to control the trigger with a clock signal and operate when the input signals overlap in time.

To achieve the goal in a relay trigger containing a remote switch, the windings of which are connected in series with the diodes, the cathodes of which are connected to the output of the key element, the switching contact of the remote switch is connected to the control input of the key and to the clock input of the trigger, and the windings are connected respectively to the closing and the breaker contacts of the remote switch and two input buses. The drawing shows a relay trigger circuit. The relay trigger contains a remote switch 1 with closing 1. and opening 1 contacts for 2, 3, and a key 4, the response time of which is shorter than the response time of the remote switch. The trigger can work with both clock signals and without them, for which it has information points 5 and 6 and clock input 7. Work without clock signals on jaxoae 7 is performed as follows, In the initial state with input 6 the control signal of unlimited duration, the trigger is in one of the stable states. The current leakage current in the winding Ij, sufficient to activate the remote switch i, prevents the locked state of KJBO4B 4 closed with a control signal coming through the closed contacts Ij of the remote switch to the key input 4, when switching the signal to input 6, the locking voltage is removed From key 4, the key is unlocked and the current is passed through the winding 1.c and diode 3 to the power bus. As a result, the remote switch 1 is transferred to the new stable state "1 close the contacts l, g, the control signal is fed to the input of the key 4 and locks it. Diodes 2, 3 serve to prevent the key 4 from being prematurely locked by a control signal through the closed contacts of the remote switch 1 and the inoperative winding. When the control signals arrive at both inputs, the trigger does not change its state, because, due to its speed, key 4 is locked by one of the input signals before the current in the corresponding winding reaches the required level for the remote switch to operate. The operation with clocking signals is carried out in a similar way with the only difference that in the presence of signals at the clocking input 7, the trigger is not blocked by any of the Hgforgladradion inputs. invention invention Relay trigger, contents a remote switch, the windings of which are connected in series with diodes whose cathodes are connected to the output of the key element, characterized in that, in order to enhance the functionality, the switching contact of the remote switch is connected to the control INPUT key to the input trigger, and to the beginning of the windings are connected respectively closing and disconnecting contacts of the remote switch input bus. Sources of information taken into account in the examination: 1, USSR Copyright Certificate No. 454700, cl. H 03 K 23/03, 1973, 2. USSR author's certificate No. 388367, class, H 03 K 23 / 03.09.02.72.