SU453804A1 - MULTI-STABLE TRIGGER - Google Patents

Description

one

The invention relates to automation and computing and can be used in the development of various scaling schemes.

A multistable trigger is known that contains identical cells on tunnel diodes and transistors of different conductivity types, separation elements, electronic key, voltage divider and input bus, and in each cell the tunnel diode is connected to the base of the transistor of one conductivity type, the collector of which is connected to the base of the transistor of another conduction type, and its collector is connected to a tunnel diode following a cell.

The conversion factor is equal to the number of stages, which limits the functionality of the trigger.

In order to increase speed and extend the functionality of the proposed trigger, the separating element of each cell, except the first one, is made in the form of two capacitors connected in series, the common point of which is connected to the common point of the divider connected to the collector of a transistor of a different conductivity type of the previous cell, except the last one, the bus is connected directly to one of the outputs of the electronic key and through an additional emitter follower to another output of the electronic key, and The control key of the electronic key is connected to the output of the last cell.

The drawing shows a circuit diagram of a multistable trigger.

A multistable trigger consists of identical cells Ya Ya2, Yaz.-Yap, kalada cell

contains a trigger on a tunnel diode, an electronic switch of two transistors, separation capacitors, voltage dividers, for example, cell 7i consists of separation capacitor 1, a trigger on a tunnel

diode 2, electronic key transistors

3, 4, voltage divider across resistors 5, 6.

Electronic pulse key has two

inputs (In. 1, In. cont.) and two outputs (out. 1,

Out 2). The input (In. 1) receives the pulses to be counted and, depending on the signal at the control input (In. Control), commutes to one of the outputs.

The electronic pulse key contains two triggers on tunnel diodes 7, 8, two

inverter transistors 9, 10 and three electronic key, two of which are made respectively on two transistors 11 and 12, 13 and 14 of opposite conductivity, and the third on one transistor 15, and an emitter follower on transistor 16.

The device operates as follows.

In the initial state, all the transistors are locked, the tunnel diodes are in a low ip state. The tunnel diode 2 of the multi-trigger 1-o trigger is prepared for operation, since through the resistor i / and the indicated tunnel diode the current flows, the Oliakia to the maximum current.

. The emigrants, who are right and amicable, and stand at the entrance of rix. ij electronic pulse key. The transistors li, 12 open, to the transistors Y, iU, and tunnel diodes 7.6 are fed to iair. The tunnel diode Y is disconnected to the high voltage source, since the transistor Y is closed and the current is in terms of ib, IV, 7 and 2, 2i, 7 Longer than the current maximum of the tunnel diode. Transistors L6, 14 open and exit the syc. Ij appears a pulse and a positive-polarity switching the Tuppel diode 2 of the first cell of the multi-core trigger to the low power pair state.

The transistors 6, 4 are opened and a high level of power is generated at the output (Out. 1) of the first and most stable trigger cell. But the resistors 22 and the tunnel diode 23 of the second cell, as well as the resistors b, 6, which form the divider of the ion source, flow currents. This cell's diode diode stays itself sensitive to output pulses. The fall of the nanoparticles resistor 6 is applied to the outer plates of the separation cells 24, 25 of the second cell, i.e., pulses whose amplitude is less than the magnitude of the voltage drop indicated, cannot switch this tunnel diode to a high voltage state or in the state of low voltage.

The second impulse of the polarity field from the output of the electronic pulsed key, the amplitude of which exceeds the magnitude of the voltage applied to the common plates of the coupling capacitors 24, 25, switches the tunnel diode 23 to the high-voltage state. The hta output (Out. 2) of the myogostable trigger appears to be high levels: the tunnel diode 26 of the third cell is being prepared for operation, and the paired pair of the resistor 27 is applied to the common connection point of the isolating capacitors of the third stage.

This process continues until the tunnel diode of the nth cell switches to high-voltage state. At the output (Bykh. P) but the Vits is a high level iair l: epi, and the same voltage goes to the control input (In) .. of the electronic pulse key.

The next pulse, after switching this cascade with an electronic pulse key, is switched to the second output (Out 2). The impulse from (Out. 2) of negative polarity goes to all inputs, however, only the tunnel diode 2 of the first cell switches to the low voltage state, because of its amplitude it does not exceed the voltage applied to the common points of the separation capacitors of the remaining cells . The transistors 3 and 4 are closed, the disconnection from the coupling capacitors 24, 25 is removed, and the tunnel diode is held in a state of high voltage by the current flowing through the circuit of the resistor 28, the tunnel diode 23 connected to the output (Output 2). The next pulse of negative polarity switches the tunnel diode 23 of the second cell, a third is prepared for reset.

0 cell, etc.

When the cell is switched to the initial state, the high voltage level is also removed from the control input (I) of the electric pulse key.

5 A subsequent p-1 -1 pulse is output (Ex. 1) of the electronic pulse key with positive polarity, and the process is repeated.

Subject invention

Multistable trigger containing identical cells on tunnel diodes and

transistors of different types of conductivity, separation elements, electronic key, a divider and an input bus; each cell has a blinding diode connected to the base of the transistor of one conduction type, the collector of which is connected to the base of the transistor of a different type of conduction, the collector of which is connected to the tunnel diode of the next cell , characterized in that, in order to increase speed

and expanding the functionality, the cell dividing element, besides the first, is made in the form of two capacitors connected in series, the common point of which is connected to the common point of the divider connected to the collector of the transistor of the other conductivity of the previous cell, except the last, the input bus is connected directly to one of the outputs electronic key and through additional

the emitter follower is with a different output of the electronic key, and the control input of the electronic key is connected to the output of the last cell.

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