SU739554A1 - Multiplier - Google Patents

Description

(54) MULTIPLE DEVICE

one

I The invention relates to information and measuring and computing equipment, namely to computing computing devices,

A four quadrant multiplying device is known, containing: a fixed U-shaped magnetic circuit with excitation and measurement windings and a movable magnetic circuit 1.

 However, this device has large dimensions and low fidelity reproduction reproduction.

The multiplying device, which is closest to the invention, is known, it contains a movable magnetic C-shaped conduit with poles covering a movable insulating plate on which the excitation and measurement windings and the power supply of the excitation winding 2 are wound.

The drawbacks of the device are large dimensions and weight, low accuracy and resolution of the multiplication operation.

The aim of the invention is to improve the accuracy and reduce the size.

The goal is achieved by the fact that in the replicating device containing a movable C-shaped magnetic core with poles between which there is a fixed plate, an excitation winding, a power source, a recording unit, the fixed plate is made semiconductor, in which

10 meta-alized regions and pnp (pn-p) regions that form MIS transistors, and the metallized regions and MDP transistors form four bridge quadrupoles, in

15 each of which the first and second shoulders are formed by metallized areas, and the third and fourth drain-source transitions of MOS transistors, in which the gate of a quadrupole third-terminal MOSFET transistor is connected to the first output of the first diagonal of the same bridge quadrupole, the second output, the first diagonal is connected to the gate of the MOSFET of the fourth arm of the same bridge over the quadrupole, the excitation winding is located on the movable C-shaped magnetic core, with the first conclusions. the first diagonal of the first and second, third and fourth bridge quadrupoles, respectively, are interconnected, and the second conclusions of the first diagonal of the first and fourth bridge quadrupoles are connected to the registering unit, and the second conclusions of the first diagonal of the second and third bridge quadrilaterals are combined, the same conclusions of the second diagonal of the first and third The second third and fourth bridge four ports of the network are combined and connected to an additional power source. .. Fig. 1 shows the proposed device; in fig. 2 - the same section A-A; Fig. 3 is a circuit diagram of a bridge quadrupole.

The device consists of a C-shaped movable magnetic circuit 1, on which the field winding 2 is located, it is powered from the source of the field winding 3; the plate 4, located between the poles 5 and 6; Four identical quadrupole bridges 7–10 are made on the semiconductor plate 4, sensitive to the influence of the magnetic field of the additionally introduced power source 11; the resistor 12 and the registering unit 13. The positions 14 and 15 mark the second and first conclusions of the first diagonal, and the positions 16 and 17 mark the second and first conclusions of the second diagonal of each bridge. In each bridge quadrupole, the first and second shoulders are formed by metallized areas 18 and 19, and the third and fourth - by drain-source transitions of MOS transistors 20 and 21, and in each bridge quadripole the third shoulder MOSFET is connected to the first terminal 15. the first diagonal, the second pin 14 of which is connected to the gate of the MOSFET of the fourth shoulder. In addition, the first pins 15 of the first diagonal of the first and second bridge quadrupoles 7 and 8, respectively, the third and fourth 9 and 10 are interconnected, the second pins 14 of the first diagonal of the first and fourth bridge quadrupole 7 and 10 are connected to the recording unit 13, and the second pins of the first the diagonals of the second and third bipolar quadrupoles 8 and 9 are combined, and the poison pointers 16 and 17 of the second diagonal are respectively the first and second, third and fourth bridge quadrupoles combined and connected to Power source 11.

Each of the two MOS transistors 20 and 21 represents a key with a high input resistance.

It is believed that transistors 20 and 21 are turned on when a voltage is applied to their gates. It lies in the specified range and turns off at all other voltages. In the presence of a magnetic field between the MIS transistors 20 and 21, a connection appears due to electron drift in the semiconductor substrate. With the introduction of MOS transistors 20 and 21 in the bridge quadrupole between them appears positive feedback, as they are included in the opposite shoulders of the bridge. Electrons go away from a single transistor 20 to another 21, sensitivity to a magnetic field

5 at the same time increases.

The computing device operates as follows. When alternating current 3o flows through the excitation winding 2 with the number of turns VVcc0, uniform magnetic induction B is produced in the air gap b.

AT.

(one)

(

resistance, air gap gap; reluctance

become;

nor poles 5 and 6.

The flux f through the bridge quadrupoles 7-10 depends on the coordinate of the moving core, namely, on X and Y, and the electrical signal 3j also depends on

flow:

, -. Cr,). . (2)

where K. is the proportionality coefficient.

Electrical signal, also depends on the projection of the poles 5 and 6 of the mobile headset 1:

. F-L5 (3)

. : J

where - (((iif.) (, X and Y - the coordinates of the movable magnetic circuit 1.

This is achieved due to the fact that the magnetic flux through the bridge quadrupoles 7-10 is proportional to the change in both the X coordinates and the Y coordinates.

The signal, the projection of the coordinate product, is taken by the recording unit 13.

1 „-K- (1xH +), (5)

where Kd is the coefficient of proportionality, depending on O: T of induction Q6, field current Za, number of turns V, as well as on the electrophysical parameters of bridge quadripoles.

The invention favorably differs from the prototype. A new set of features allows you to get a device with small dimensions and high accuracy.

Claims (2)

1. Author's certificate of the USSR 4S2835, cl. G About G 7/16, 1974. 2. Authorship certificate of the USSR 2V3691, cl. G 06 G 7/16, 1970 (prototype).