RU2509412C1 - Logical element "and" with multidigit internal representation of signals - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: device comprises sources of inlet logical signals, switchboards of quanta of current l₀, matched with the first bus of the power supply source, current mirrors, the second bus of the power supply source.

EFFECT: higher efficiency and development of an element base of computer devices that operate on the basis of principles of multidigit linear algebra.

12 dwg

Description

The present invention relates to the field of computer engineering, automation and can be used in various digital structures and systems for automatic control, information transfer, etc.

In various computing and control systems, the logical elements “I” (LE) are widely used, implemented on the basis of emitter-coupled logic [1-12], operating according to the laws of Boolean algebra and having two logical states “0” and “1” at the output, characterized by low and high potentials.

In [13], as well as in the monographs of the co-author of this application [14-15], it was shown that Boolean algebra is a special case of a more general linear algebra, the practical implementation of which in the structure of computing and logic devices of automation of a new generation requires the creation of a special element base, implemented on based on logic with a multi-valued internal representation of signals, in which the current quantum is the equivalent of a standard logic signal. The inventive device relates to this type of logic elements.

The closest prototype of the claimed device is a logical element "And", presented in patent US 5.315.176, figure 2. It contains the first 1 and second 2 sources of input logic signals that control the state of the corresponding first 3 and second 4 switches of quanta of current I ₀ matched with the first 5 bus of the power supply, the third 6 and fourth 7 switches of quanta of current 10 matched with the first 5 bus of the source power, the first repeater 8 analog signals agreed with the second power source bus 9 having an input coupled to the first current output 10 of the first switch 3 quanta current I _0, the second repeater 11, the analog signals consistency 9 minutes with the second power supply bus having an input coupled to the first current output 12 of the second current switch 4 rays 10, wherein the outputs of the first 8 and second 11 analog signal repeaters are connected to each other.

A significant drawback of the well-known logical element “I” is that, using potential binary signals, it has a complicated structure of connections, nonlinearity of the operating modes of the elements, and critical structure parameters of the LE and input signals, which ultimately leads to a decrease in its speed.

The main objective of the invention is to create a logical element "AND", in which the internal transformation of information is carried out in a multi-valued current form of signals, determined by the state of the input potential binary signals. Ultimately, this allows you to improve performance and create an elemental base of computing devices operating on the principles of multivalued linear algebra [14-15].

The problem is solved in that in the logical element "And" (figure 1), containing 1 and second 2 sources of input logic signals that control the state of the corresponding first 3 and second 4 switches of quanta of current I ₀ , consistent with the first 5 bus power source, the third 6 and fourth 7 current quantum switches 10, matched with the first 5 bus power supply, the first 8 analog signal repeater, matched with the second 9 power supply bus, the input of which is connected to the first 10 current output of the first 3 quantum switch current 10, second 11 analog signal repeater, matched with the second 9 bus of the power source, the input of which is connected to the first 12 current output of the second 4 current quantum switch I ₀ , and the outputs of the first 8 and second 11 analog signal repeaters are connected to each other, new elements and communications - a current mirror with an additional non-inverting input 13, which is connected to the second 14 current output of the second 4 current quantum switches, is used as the first 8 analog signal repeater, as a second On the 11th analog signal repeater, a current mirror is used with an additional non-inverting input 15, which is connected to the current output 16 of the third 6 current quantum switch I ₀ , the second 17 current output of the first 3 current quantum switch I _{0 is} connected to the current output 18 of the fourth 7 quantum current switch I ₀ and connected to the input of the first 19 additional current mirror, matched with the second 9 bus power source, the combined current outputs of the first 8 and second 9 current mirrors are connected to the input of the second 20 additional current a mirror, the output of which is connected to the output of the first 19 additional current mirror and the input of the third 21 additional current mirrors, the current output of which 22 is the current output of the device, and the first 1 source of the input logical signal is connected to the control input of the third 6 current quantum switch I ₀ , and the second 2 source of the input logical signal is connected to the control input of the fourth 7 input switch of the current quanta I ₀ .

The circuit of the logical element "And" - the prototype is shown in the drawing of figure 1. The drawing of figure 2 presents a diagram of the inventive device in accordance with the claims.

In the drawing of figure 3 shows an embodiment of the construction of the first 8 and second 11 current mirrors.

In the drawings of FIG. 4 and FIG. 5, practical embodiments of the second 20 and third 21 additional current mirrors are shown.

The drawing of Fig.6 shows a diagram of the first 14 additional current mirror.

The drawing of Fig.7 shows a fragment of a practical implementation of the switches of the quanta of current (3, 4, 6, 7).

The diagram of Fig. 8 characterizes another embodiment of the construction of current quantum switches 3, 4, 6, 7.

The drawing of Fig.9 shows a diagram of the inventive LE in the simulation environment "MS9".

The drawing of figure 10 shows the timing diagrams of the signals of the circuit of figure 9 (input - potential, output - current).

The drawing of Fig.11 shows a timing diagram of the signals of the circuit of Fig.11 at the time of switching on the output current.

In the drawing of Fig.12 shows a timing diagram of the signals of the circuit of Fig.11 at the time of turning off the output current.

The logical element "And" with a multi-valued internal representation of the signals of figure 2 contains the first 1 and second 2 sources of input logical signals that control the state of the corresponding first 3 and second 4 switches of quanta of current I ₀ , consistent with the first 5 bus power source, the third 6 and fourth 7 switches of current quanta 10, matched with the first 5 bus of the power supply, the first 8 analog signal repeater, matched with the second 9 bus of the power source, the input of which is connected to the first 10 current output of the first 3 commutators current quantifier I ₀ , second 11 analog signal repeater, matched to the second 9 bus of the power source, the input of which is connected to the first 12 current output of the second 4 current quantum commutators I ₀ , and the outputs of the first 8 and second 11 analog signal repeaters are connected to each other . As the first 8 analog signal repeater, a current mirror with an additional non-inverting input 13 is used, which is connected to the second 14 current output of the second 4 current quantum switch, and a second mirror 11 is used as a current mirror with an additional non-inverting input 15, which is connected to the current output 6, the switch 16 of the third current I ₀ photon, the second current output 17 of the first 3 switch current I ₀ quantum is connected to the current output 18 of the fourth current switch 7 quantum I ₀ and Connectivity It is connected to the input of the first 19 additional current mirror, matched with the second 9 bus of the power source, the combined current outputs of the first 8 and second 9 current mirrors are connected to the input of the second 20 additional current mirror, the output of which is connected to the output of the first 19 additional current mirror and the input of the third 21 an additional current mirror, the current output of which 22 is the current output of the device, and the first 1 source of the input logical signal is connected to the control input of the third 6 quantum switch a current I ₀ and the other two input logic signal source connected to the control input of the fourth switch 7, input current I ₀ quanta.

The construction option of the first 8 and second 11 current mirrors, presented in the drawing of figure 3, contains transistors 24, 25 and 26.

The practical implementation of the second 20 and third 21 additional current mirrors (drawings of Fig. 4, Fig. 5) contains transistors 27 and 28 (Fig. 4), as well as transistors 32, 33, 34 (Fig. 5).

The circuit of the first 14 additional current mirror, shown in the drawing of Fig.6, contains transistors 29, 30, 31.

Presented on the drawing Fig.7 fragment of a practical implementation of the switches of the quanta of current 3, 4, 6, 7 contains transistors 35, 36 and pn junction 37.

Shown in the drawing of Fig. 8, the construction option of the current quantum switches 3, 4, 6, 7 contains transistors 38, 39, a reference current source 40 and an auxiliary voltage source 41.

Consider the work of the proposed scheme LE 2.

The synthesis of the logical function "2-I" is based on its multi-valued analogue, described by the expression

$$x_{\mathrm{one}}{\text{\& x}}_{\text{2}}=\min (x_{\mathrm{one}},x_2)|\; |\; |{}_{k=2}=\frac{|\; |\; |x_{\mathrm{one}}+x_2|\; |\; |-|\; |\; |x_{\mathrm{one}}-x_2|\; |\; |}{2},\text{(one)}$$

where k is the logic value, x ₁ , x ₂ are the input logical signals.

Input current signal x ₁ is generated from potential input signal x ₁ using current quantum switches 3 and 6 at outputs 10, 16 and 17. Similarly, input current signal x ₂ is generated from potential input signal x ₂ using current quantum switches 4 and 7 at outputs 12, 14 and 18.

When the keys S are open, the outputs of the current switches 3, 4, 6, and 7 are disconnected from the sources of the reference current I ₀ . When the keys are closed, current quanta arrive at the inputs of the current mirrors 8 and 11.

The module of the sum corresponding to expression (1) is realized by mounting the current signals from the outputs 17 and 18 of the current mirrors 3 and 7. It can be equal to “0” (the absence of both current quanta), “1” (the presence of one of the current quanta) or “2” (the presence of both current quanta). With the help of the current mirror 19, this sum is represented by the absence of either one or two quanta of the outgoing current.

The difference module in expression (1) is realized by the formation of difference signals (x ₂ -x ₁ ) and (x ₁ -x ₂ ) coming from the outputs 10 and 14 of the current switches 3 and 4 to the inputs of the current mirror 8 and from the outputs of 12 and 16 switches current 4 and 6 to the inputs of the current mirror 11. For the same signal values, the output current quanta of the current mirrors 8 and 11 are equal to "0", for different values - a current quantum 10 is generated at the output of one of the current mirrors 8 or 11. The mounting sum of these differences equal to "0" or a quantum of current 10, is fed to the input of the current mirror 20, through which it pr is set in the form of an “inflowing” current quantum I ₀ .

The difference between the moduli of the sum and the difference in expression (1) is realized by mounting the union of the current quanta from the outputs of the mirrors 19 and 20. The current mirror 21 divides the obtained difference of the current quanta by "2". The result of the implementation of expression (1) is fed to the input of the current mirror 21, from the output of which 22 the output signal of the device is taken.

The resistor 23 is used to observe the output signal during the simulation.

As can be seen from the above description, the implementation of the logical function “2-I” here is performed by the formation of the algebraic sum of current quanta and the allocation of certain values of this sum of currents. All elements of the above circuit operate in active mode, which assumes the absence of saturation during the switching process, which increases the overall speed of the circuit. In addition, the use of multi-valued internal representation of signals increases the information content of communication lines, which reduces their number. The use of stable values of the current quanta, as well as the determination of the output signal by the difference of these currents, provides a small dependence of the circuit operation on external destabilizing factors (deviation of the supply voltage, radiation and temperature effects, common mode noise, etc.).

Shown in the drawings of Fig. 10, Fig. 11, Fig. 12, the simulation results confirm the indicated properties of the claimed schemes.

Thus, the considered circuit solutions of the 2-I logic element are characterized by the multi-valued state of internal signals and the binary representation of the signal at its current output and can be the basis of computing and control devices using multi-valued linear algebra, a particular case of which is Boolean algebra.

BIBLIOGRAPHIC LIST

1. USSR Copyright Certificate SU 892729

2. Patent application WO 2004/112247

3. Patent US 4.001.603

4. Patent US 4.359.653

5. Patent US 6.157.693, figure 5

6. Patent US 5.216.295

7. Patent US 3.758.791, figure 5

8. Patent US 4,593.211

9. Patent US 4.347.446

10. Patent US 4.516.039, figure 5

11. Patent US 4.970.416

12. US patent 4.605.871, figure 2

13. Malyugin VD. Realization of Boolean functions by arithmetic polynomials. // Automation and telemechanics, 1982. No. 4. S.84-93.

14. Chernov N.I. Fundamentals of the theory of the logical synthesis of digital structures over the field of real numbers. // Monograph. - Taganrog: TRTU, 2001 .-- 147 p.

15. Chernov N.I. Linear synthesis of digital structures ASOIU. // Textbook Taganrog.- TRTU, 2004, 118 p.

Claims (1)

Logical element “I” with a multi-valued internal representation of signals, containing the first (1) and second (2) input logic signals that control the state of the corresponding first (3) and second (4) current quantum switches I ₀ , consistent with the first (5) power supply bus, the third (6) and fourth (7) current quantum switches I ₀ , matched with the first (5) power supply bus, the first (8) analog signal repeater, matched with the second (9) power supply bus, the input of which is connected with the first (10) current output of the first second (3) switch quanta current I _0, second (11) analog repeater signal matched with the second (9) power supply bus having an input coupled to the first (12) current output of the second (4) the switch current quanta I _0, and the outputs the first (8) and second (11) analog signal repeaters are connected to each other, characterized in that the first (8) analog signal repeater uses a current mirror with an additional non-inverting input (13), which is connected to the second (14) current output second (4) quantum switch eye, as the second (11) analog repeater signal uses a current mirror with a further non-inverting input (15) which is connected to the current output (16) of the third (6) the switch current quantum I _0, second (17) current output of the first (3) the current quantum switch I _{0 is} connected to the current output (18) of the fourth (7) current quantum switch I ₀ and connected to the input of the first (19) additional current mirror, matched with the second (9) power supply bus, the combined current outputs of the first (8) and the second (9) current mirrors are connected to the input ohm of the second (20) additional current mirror, the output of which is connected to the output of the first (19) additional current mirror and the input of the third (21) additional current mirror, the current output of which (22) is the current output of the device, the first (1) input logical source the signal is connected to the control input of the third (6) current quantum switch I ₀ , and the second (2) input logic signal source is connected to the control input of the fourth (7) input quantum current switch I ₀ .

Images