SU1089760A1 - Symmetrical complement flip-flop - Google Patents

Abstract

1.SYMMETRIC COUNTABLE TRJTER, containing perthz and vns transistors of the first conductivity type, the emitters of which are connected to 1B in the bus, collectors to the outputs of the unit and through the first and second resistors to the power bus, respectively, through the third and fourth resistors to the third and third and the fourth t of the resistors of the first type are given, Kotofoae are connected to the bases of the second and first transistors, respectively, differing in that, with the success of the stage, the fifth and sixth transistors were introduced. type of conductivity, the base and the coherence of which are connected respectively to the collectors and the bases of the third and fourth transistors (SW, ed TWTTERs through the fifth resistor f - to the input ycsptrikJiea, the coefficients of the third and fourth track are connected respectively to the cathodes and sec. x) suv & iparsyyuv, whose anodes are mounted with a weight to the anodes of the first and in the “chthgo HBOfKfB”, the cathodes of which are respectively (connected to the collectors of the right and transistors. 00 co a

Description

2. The trigger on p, 1, o t p and h ayusch and with that, Ч1-0, with the purpose of relaying on input, a collection

The third and fourth transistors, respectively, through the sixth and seventh resistors are connected to the power bus.

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The invention relates to a pulse technique and can be used in electronic devices of automation, telemechangasi and computing,

There are known counting triggers containing basic and auxiliary triggers, the emitters of the auxiliary transistors are connected to the bases of the main trigger C 1 3

The disadvantage of such countable triggers is the unreliable operation and the overheated threshold of their control.

The closest in essence to the present invention is a trigger containing the first and second transistors of the first type n |: gadgets, the emittam of which connected to the oyt bus, the detectors to the output M of the device and through the first and second resistors respectively to the bus It will penetrate through the third and fourth resisters to the emitters of the cell and the fourth transistors of the first type P} Yvodik1osti, which are connected to the bases of the second and the first transistor of the second and first transceivers (which correspond to each other through the fifth and second resistors They are connected to the bases of the third and fourth trains | X) whose co-collectors through the seventh and eighth resistors are connected to the input of the device and, correspondingly, through the ninth and tenth resistors 1 to the bases of the fourth and third transistors 2.

A disadvantage of the known trigger is the low trigger threshold and low sensitivity to the input.

The purpose of the invention: an increase in the stability of the switching threshold and an increase in hopping sensitivity.

To achieve the goal, the symmetric counting trigger p, containing the first transistors of the first conductivity type, the emitters of which are connected to the common bus, the collection collectors to the device and through the first and second resistors respectively to the power bus, through the third and fourth resistors to To the emitters of the third and fourth transistors of the first conductivity type, which are connected to the bases of the second and first transistors, respectively, the fifth and sixth transistors of the second conductivity type, base and collectors are introduced. KoTopajx p dklyucheny osyutvetstvenno to the collectors and bases

third and fourth transistors,

emitters through the fifth resistor are connected to the device input, the collectors of the third and fourth transistors are connected respectively to the cathodes of the first and second zener diodes, the anodes of which are respectively connected to the anodes of the first and second diodes, the cathodes of which are respectively connected to the collectors of the first and second transistors.

In this case, the collectors of the three and four transistors, respectively, through the sixth and seventh resistors are connected to the power bus,

The drawing shows a printable symmetrical counting trigger circuit.

Symmetric counting trigger Soder: "it is the first and second transistors 1 and 2 of the first conductivity type, emitters

which are connected to the common bus, collectors to the outputs 3 and 4 of the device, through the first and second resistors 5 and 6, respectively, to the power bus 7, and through the third and fourth resistors 8

and 9 - to the emitters of the third and fourth transistors 1O and 11 of the first hypo conduction, which are connected to the bases of the second and nepBtvgo transistors 2 and 1, respectively, of the second and sixth transistors 12 13 of the second type of conductivity, are connected respectively to collectors and azam the third and fourth transistors 10 and 11, the emitters through the l-th

resistor 14 - to the input 15 of the device, the collectors of the third and fourth transistors 10 and 11 are connected respectively

Claims (2)

ASYMMETRIC COUNTER TRIGGER, containing the first and second transistors of the first type of conductivity, the emitters of which are connected to the general silence, the collectors to the outputs of the device and through the first and second resistors to the power bus, respectively, the third and fourth resistors are cut to the emitters of the third and fourth transistors the first type of conductivity, which are connected to the bases, respectively, of the second and first transistors, characterized in that, in order to increase the stability of the switching threshold, the fifth and sixth transistors are introduced of a different type of conductivity, the bases and collectors of which are connected respectively to the collectors and bases of the third and fourth transistors, emitters through the fifth resistor to the input of the device, the collectors of the third and fourth transistors are connected respectively. respectively, to the cathodes of the first and second zener diodes, the anodes of which are respectively connected to the anodes of the first and second diodes, the cathodes of which are respectively connected to the collectors of the first and second transistors. SU ,. 1089760> 2. The trigger on π. 1, on the basis of the fact that, in order to increase the sensitivity of the input, the collectors of the third and fourth transistors co. Responsibly through the sixth and seventh resistors are connected to the power bus.