SU1233186A1 - Device for simulating electric two-terminal networks - Google Patents

Abstract

The invention relates to the field of analog computing and can be used in devices that simulate electrical elements. The purpose of the invention is to expand the functionality by simulating nonlinear and linear electrical elements with ungrounded viewports. The device contains four operational amplifiers, four large-scale resistors and two two-port networks with corresponding connections. A device for simulating electric two-terminal arrays forms a matrix of nodal conductivities corresponding to a floating non-linear circuit of a balanced type and can perform the functions of a mutator, gyrator, and converter of the value of the nominal values of simulated electric circuit elements. 1 il. § (lu & 0 so 30

Description

The invention relates to the field of analog computing and can be used in devices simulating electrical components.

The purpose of the invention is to expand the functionality by simulating nonlinear and linear electrical elements with ungrounded twist.

The drawing shows the functional diagram of the device.

Y (s)

m e G- - conductivity i-ro scale resistor (); the gain of the j-ro operational amplifier on the non-inverting input, if, and on the inverting input, if

G- (S) is the leading conductivity of the first two-port;

G (S) is the input conductivity of the second two-port. If in the Device Diagram choose

K „-K

KK ,,

Y, (S)

2; , then the matrix of nodes of the conductors will take the form:

00 I Oh

00-1 O

1-10 1

O O -G (S) G, d (S)

Regarding the input 11 and output 12 of the device, the nodal conductivity matrix takes the form:

Y (S) - - h

  (S) G. (S) Such a matrix of nodal conductivities corresponds to a floating non-linear chain of balanced type with conductivity (S) / GO (S).

The proposed device can perform the functions of a mutator, a gyrator and a converter of the nominal value of simulated elements of an electrical circuit. The fractional linear gyration coefficient can be varied over a wide range by using a separate

allotted to the first and Polyusnikov.

second two Formula. the invention

Device for simulating electric two-pole systems

12331862

The device contains four operational amplifiers 1-4, four large-scale resistors 5-8, two two-terminal circuits 9 and 10, input II and output 12 of the device, and two additional outputs 13 and; 14 devices.

A device for simulating electric double-pole works up; 10 The matrix of the device nodal conductivities with respect to its input 11 and output 2 has the form:

-TO

7

ABOUT

about

G,

G7 + Gg (,) -K

-G

ten

four

c, + c, „

(1 to..)

14

0

five

0

ABOUT

five

0

five

four operational amplifiers, four large-scale resistors, the first, second and third large-scale resistors are included in the positive feedback circuit of the first, second, and third operational amplifiers, respectively, the first output of the fourth large-scale resistor is connected to the non-supporting input of the third operational amplifier, the non-inverting inputs of the first and the fourth opamp are respectively the input and output of the device, the non-inverting input of the third op amp is connected to the inverting input of the first operational amplifier, the first: inverting input of the third operational amplifier is connected to the non-inverting input of the fourth operational amplifier connected via the first two-terminal with the zero potential bus, so that extending functionality by simulating nonlinear and linear electrical elements with ungrounded outputs, a second two-pole circuit was introduced into it, and included in the positive feedback circuit of the fourth amplifier, non-inverting input of the first operational amplifier is connected to BTOpf iM with the inverting input of the third operational amplifier, the second output of the fourth scale resistor is connected to the non-inverting input of the second operational amplifier, non-inverting input of the third operational amplifier is connected to the inverting input of the fourth operational amplifier, non-inverting

3 233186

The inputs of the second and third one-complementary amplifiers are.

outlets

Claims (3)

Formula. gaining Electrical device for simulating two-terminal circuits 2 The device contains four operational amplifiers 1-4, four large-scale resistors 5-8, two two-terminal devices 9 and 10, input 11 and output 12 of the device, and two additional outputs 13 and: 14 of the device. A device for simulating electrical two-terminal network operates as follows. The matrix of nodal conductivities of the device relative to its input 11 and output 12 has the form: -K „0 -Gg 0 G _r + G ₈ (gK „) -K ₃₄ -Gio ^G 9 ^{+ G} _l0 (1-M with four operational amplifiers, four scale resistors, the first, second and third scale resistors of the included feedback, respectively, of the first, second and amplifiers, the first output of the fourth large-scale resistor is connected to the non-inverting input of the third operational amplifier, the non-inverting inputs of the first and fourth operational amplifiers are the input and output of the device, the non-inverting input of the third operational amplifier is connected to the inverter the input of the first operational amplifier, the first inverting input of the third operational amplifier is connected to the non-inverting input of the fourth operational amplifier, connected through the first two-terminal network to the zero potential bus, characterized in that, in order to expand functionality by modeling non-linear and linear electrical elements with non-grounded outputs , it introduced a second two-terminal, included in the positive feedback circuit of the fourth operational amplifier, non tiruyuschy input of the first operational amplifier is connected to a second inverting input of the third operational amplifier, a second terminal of the fourth scaling resistor connected to the noninverting input of the second operational amplifier non-inverting input of the third operational amplifier is connected to the inverting input of the fourth operational amplifier non-inverting third opera4 3 Ί233186 inputs of the second and third one- additional outputs of the device amplifiers are.