SU1112426A1 - Selector switch for electric circuits - Google Patents

Abstract

ELECTRIC CIRCUITS SWITCH, which is a multi-bit shift register, each bit of which is made in the form of a ferride containing an element of magnetic memory, actuation and release winding, closures and switching reed switches, the switching contact of the last reed switch is connected to the positive bus cord control pulses, the negative busbar of which is connected to the second terminals of the actuation and release windings of all bits, characterized in that, in order to simplify and reduce In size, the switching contact of the switching reed switch of each bit except the last one is connected to the open switch contact geocon of the next bit, the closing contact of the switching reed switch of each bit except the last one is connected to the first terminals of the release coil of its own discharge and the winding of the follower of the next bit, which opens the contact of the switching switch of the first discharge is connected to the first output of the winding of the discharge, and the contact of the switch of the switching switch last pas-g p yes connected to the beginning of its winding release. before

Description

The invention relates to automation and KOM fyTauHOHHoft technology and can be used in systems of automatic control, control, measurement and communication of various branches of technology as a multi-channel switch, a pulse switch of the last action, a step switch. A switch of electrical circuits is known, which is a multi-bit shift register, each bit of which is made as a ferrind containing a memory element, two reed switches and) actuation and release windings (. However, this device performs sequential switching of the circuits without disconnecting This is not always convenient when working in automation systems. The closest to the invention is an electrical circuit switch, which is a multi-digit shift register. It is made in the form of a ferrid containing an element of magnetic memory, actuation and release windings, closing and switching reed switches. The switching contact of the last-generation switching reed switch is connected to the positive control source bus bar, the positive bus of which is connected to the second terminals of the actuation and release windings of all E2 bits. A disadvantage of the known device is the relative complexity of the circuit and the cumbersome structure due to the presence of capacitors. The aim of the invention is to simplify and reduce size. To achieve this goal, an electrical circuit switch is a multi-bit shift register, each bit of which is made in the form of a ferride containing a magnetic memory element, actuation and release winding, closing and switching reed switches, switching contact of the last-order switching reed switch connected to the positive bus of the source of control pulses, the negative bus of which is connected to the second outputs of the windings of actuation and release of all bits, switching the contact switching reed switch. each bit except the last is connected to the disconnecting contact of the next-order switching reed switch, the closing contact of the switching reed switch of each bit except the last is connected to the first output of its own discharge coil and the subsequent discharge acting coil, the disconnecting contact of the first-digit switching reed switch is connected to the first the output of the winding triggered its own discharge, and the closing contact of the switching reed switch of the last discharge is connected with the beginning of its release winding. The drawing shows an electrical diagram of the proposed device. The device consists of the same type of cells - bits. Each cell is a core 1 of a ferromagnetic material of average magnetic rigidity, which plays the role of a magnetic memory element (EP), on which there are two oppositely connected control windings, one of which is a winding 2 actuations, the other is a winding 3 releases. The core 1 also has reed switches 4 and 5, one of which is plugged and provides for switching of its own switch circuits, the other one of which is the switching of the external load. The switching contact of the last cell switching reed switch is connected to the positive pulse source bus and forms the input terminal. The switching contact of the switching reed switch of each cell except the last one is connected to the disconnecting contact of the switching reed switch of the next cell. They form a blocking circuit that ensures the sequential switching on and off of the corresponding cells. The closing contact of the switching reed switch of each cell is connected with the start of the release winding of its cell and with the beginning of the winding of the next cell. The opening contact of the first cell switching reed switch is connected to the start of its actuation winding. The closing contact of the switching reed switch of the last cell is connected to the beginning of the release winding of this cell. The ends of the control windings are connected and connected to the minus bus of the source of control pulses. D com 31

load mutations in each cell use a load, such as a closing, a reed switch. If necessary, there may be several of them, including switching ones.

The switch is controlled by short current pulses of duration t and shorter release time t (jj reed contacts.

The operation of the device is as follows.

Suppose that in the initial state the cores of all cells are demagnetized, the windings are de-energized, and the state of contacts of the reed switches of all cells corresponds to the drawing. Then the first control pulse of current 1, arriving at the input of the switch, passes through the closed contacts of the switching reed switches of all cells (blocking circuit) and enters the winding 2 of the first cell. It produces a magnetizing of the core to the surface. Upon completion of the impulse, the reed switches of the first cell under the influence of the magnetic flux of the core work: the reed switch 4 breaks the blocking circuit of the winding 2 of the first cell and connects its release coil 3 and the second winding 2 of the first cell closing the first load RH ,.

The second control pulse from the source of control pulses along the blocking circuit and the closed contacts of the reed switch 4 of the first cell enters the winding 2 of the second cell and the release 3 winding of the first cell. It causes the magnetization of the core of the second cell and the demagnetization of the core of the first

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cells Upon termination of the second impulse, the reed switches of the second cell are activated, and the reed switches of the first cell are switched off.

The reed switch 4 of the second cell breaks the blocking circuit and connects to the control pulse bus the actuation winding of the third cell and the release winding of its cell. Closing

the reed switch 5 of the second cell turns on the load RH, and the closing reed switch 5 of the first cell switches off the load of the Cc, respectively.

Similarly, the i-th pulse

causes the i-th cell to turn on and off (1-1) -th cell, which ensures breaking the blocking of the i-th cell, turning on the load of the i-th cell and you. Turn on load (i-1) cell.

The Nth pulse enters the triggering winding of the last cell and the release winding (L-1) -th cell. The reed switch 4 of the last cell breaks the blocking circuit of the last cell after it has been activated and connects its release winding. In this case, the closing reed switch 5 of the last cell includes the load R. Next. The (H + 1) th pulse through the closed contacts of the switching reed switch 4 of the last cell enters its release winding. The core of the cell is demagnetized, which leads to the release of the reed switch of the last cell and the switching off of its load. The circuit returns to its original state and is ready for a new cycle of operation.

Thus, the proposed device with respect to the simplicity of the scheme and a large-size {structure provides reliable operation.

Claims (1)

THE ELECTRICAL CIRCUIT SWITCH, which is a multi-bit shift register, each bit of which is made in the form of a ferride, containing an element of magnetic memory, a pickup and release winding, a closing and switching reed switch, a switching contact of the last switching switching reed switch connected to the positive bus of the control pulse source, negative the bus which is connected to the second terminals of the windings of operation and release of all discharges, characterized in that, in order to simplify and reduce dimensions, the switching contact of the switching discharge reed each except the last is connected to the NC contact switching subsequent discharge reed switch, normally open reed contact switching each bit other than the last is connected to first terminals of releasing their winding winding and discharge _with intervention threshold tyvaniya subsequent discharge, smearing of the switching contact S repentieth the reed switch of the first discharge is connected to the first terminal of the coil of operation of its discharge, and the make contact of the switching reed switch of the last one-g row connected to the beginning of its release winding. 1 1112426 2