SU1227248A1 - Flip-flop with complementing input - Google Patents

Abstract

The invention can be used in storage and counting devices. The purpose of the invention is to ensure the reliability of the trigger. When a voltage pulse arrives at the counting input, a dynistor (D) P is punched, therefore the transistor (T) 4 cannot open, and D 12 cannot break through resistor 8. Through reset (LUX), the zistors 8 and 10 will open T 5, the remote switch (DP) 1 will operate and the contacts of the contact group 13 will assume the opposite position shown in the drawing. After that, D 12 will open, thereby closing T 5, de-energizing the winding of DP 1. Thus, until the end of the pulse, both DP windings are de-energized, since T 4 and 5 are closed, and D 1I and 12 are open. After the end of the pulse, D 11 and 12 close. When the next pulse arrives, T 4 opens, DP 1 triggers, the contacts take the position shown in the drawing. D 12 will prevent the opening of T 5 and D 12 will close T 4. Achieving this goal is facilitated by the introduction of D I2 and its connection with the elements of the device.1 Il. i (Lu Yu sl GS 4ib 00

Description

The invention relates to trigger snem and can be used in memory and counting devices.

The purpose of the invention is to increase the reliability of the trigger.

The drawing shows the adaptive scheme of the trigger.

The trigger contains a remote switch 1 with two windings.

2 and 3 and transistors 4; and 5, resistors 6-10, dinistors P and 12, contact group 13, common power supply bus 14 and power supply bus 15.

The cathode of the first dinistor 12 is connected to a common power supply bus 4, to which are connected the first 4 and second 5 transistors, the collectors of which are connected via the first 2 and second respectively

The windings of the remote switch 1 to the power supply bus 15, the bases of the said transistors are respectively connected through the first 9 and second 10 resistors to the fixed contacts of the contact group 13 of the remote switch 1 and respectively to the first ends of the third 6 and fourth 8 resistors.

The trigger further comprises a dynistor 115 whose cathode is connected to a common power supply busbar 14. The dynistor anodes are connected to the corresponding fixed contacts: the contact group 13 of the remote switch 1, the flip contact of which through the fifth resistor 7 is connected to the power source bus. second horses are connected; s of the third 6 and fourth 8 resistors

The previous trigger works as follows.

When a voltage is applied to the counting input and the position of the contact group 1 3 J is shown, in the drawing, a resistor b connected in parallel with the 7 m resistor and a normally closed contact of the contact group 13 punch through

page 11, so that the transistor can not open.

four

The dynistor 12 cannot penetrate through the resistor 8, since the magnitude of the resistors 6 and 8 is chosen such that, firstly, to provide a dynistor sample condition through the resistors 6 or 8 when connected to them through the closed contacts of the contact group

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13 resistors 7 in parallel, and secondly, to ensure that the dynistors are held after the test.

Through the resistors 8 and 10, the transistor 5 will open. The current flowing through the winding 3 and the open transistor 5 will trigger the remote switch 1, and the contacts of the contact group 13 will take a position opposite to that shown in the drawing.

In this case, after the transition of the contact of the contact group 13, the 12 opens, thereby closing the transistor 5, de-energizing the winding of the remote switch 1.

So, until the end of the voltage pulse, both windings of the remote switch .1 are de-energized, since transistors 4 and 5 are closed, and both dynistors are open.

After the end of the voltage pulse, the dynistors close and the trigger de-energizes.

The contacts of the contact group 13 5 of the remote switch 1 will have the opposite position shown in the drawing.

When the next voltage pulse arrives at the counting input, the trigger will work in the same way, with the difference that transistor 4 opens and winding 2 triggers remote switch 1, and contacts of contact group 13 take the position shown in the drawing. Then, the open dynistor 12 will prevent the opening of the transistor 5, and the open distor 11 after returning the contacts of the group 13 to the initial position shown in the drawing will close the transistor 4.

Under the action of a sequence of h-pulses, the switching processes will be repeated.

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Claims (1)

Invention Formula A trigger with a counting input, containing a remote switch with two obmbts and a contact group, two transistors, five resistors and a first distor, whose cathode is connected to a common bus to which the emitters of the first and second transistors are connected, the collectors of which are connected via the first and the second the second winding of the remote switch to the bus. 3 12272484 power supply, transistor base of the cathode, the cathode of which is connected to, respectively, the first and second common busbars, the anodes of the dynistor cot-resistors are connected to the disconnecting corresponding disconnecting and tapping and closing contacts of the contact group of the contact group of the remote switch 5 of the remote switch, the cross and the first terminals corresponding the contact of which through the p - third and fourth resistors, the resistor with the bus source is characterized by the fact that Nena the purpose povppeni reliability trig-second terminals of the third and fourth ger further comprises vtoroyyu resistors.