SU843227A1 - Matrix switching device - Google Patents

Description

(54) MATRIX SWITCH

one

The invention relates to automation of computing and measuring technology, and can be used, for example, to define experimental circuits for inputs and for object outputs in SANI scientific research automation systems or in automated AIS test systems.

A matrix switch is known, which contains groups of keys made on magnetically controlled contacts connected between the outputs and the input bus- us, l}.

A disadvantage of the known device complexity.

A matrix switchboard is known that contains the first groups of M input and K output buses, two-position magnetically controlled contacts whose moving contacts are connected to M input buses, and short-circuiting contacts to K output buses, K shaper amplifiers, control unit M K three-winding pulse transformers , the input windings of which are connected in M first serial circuits along the K input windings in each serial circuit connected by one output to the corresponding inputs of the control unit, M output voltages outflow of pulse transformers from different first serial circuits are connected to second serial circuits, with their terminals connected to the inputs of the corresponding driver amplifiers; a group of inputs of the control unit 21.

However, this known device has limited functioning capabilities, since it does not allow simultaneous switching of the circuits for the inputs and outputs of the object under study and for conducting complex tests.

The purpose of the invention is to expand the functioning capabilities.

The goal is achieved by the fact that the matrix switchboard contains the first groups of M input and K output buses, MHK two-position magnetically-controlled contacts, the moving contacts of which are connected to M o input buses, and the closing contacts - with K output buses, K amps , the control unit of the MHK three-winding impulses of transformers, the input windings of which are connected-5 yen in the M of the first consecutive circuits along the K input windings in each sequential circuit connected by one output to the corresponding Exit control unit. M output rounds of 20 coils of pulse transformers from different first serial circuits connect second serial circuits with their leads connected to the inputs of the corresponding amplifiers — 25 drivers, the leads of the auxiliary windings of each pulse transformer / are connected to the moving and opening contacts of the corresponding two-position magnetically controlled contact. one, the outputs of the amplifier-formers are connected to the first group of inputs of the control unit, the second and third groups of M input buses are introduced, a torus of L and a third of the N group of output buses, 35 (L + N + 2) xM of on-off magnetically controlled contacts and pulse transformers, (L + N + 2) of shaping amplifiers, the moving contacts of the first Lx M and the second N x M The magnetically controlled contacts are connected respectively to the M input tires of the second and third groups, and the closing contacts to the L and N output tires of the second and third groups, M input tires of the first group of 45 pads are connected to the corresponding moving contacts of the first group from M additional magnetic control contact closure contacts which are connected. with the corresponding tires 50 from the second group of input buses, M input tires of the second group are connected to the moving contacts of the second group M of additional magnetic controlled contacts, the closing contacts of which are connected to the corresponding buses from the third group of input buses, the input windings of the pulse transformers are connected to M consecutive circuits along (L + N + 2) windings in each circuit, one output connected to the corresponding outputs of the first serial circuits, and the second to the common bus, M output windings of the pulse transf mators from different series are connected in (L + N + 2) four series circuits, with their terminals connected to the inputs of the corresponding additional amplifiers-formers, the outputs of the auxiliary windings of each additional pulse transformer are connected to the moving and opening contacts of the corresponding additional two-position magnetic-controlled contact, and the terminals Additional driver amplifiers are connected to the second group of inputs of the control unit.

The drawing shows a diagram of the proposed device.

The proposed switchboard contains a control unit 1, (K + L + N + 2) xM pulse transformers 2 and two-position magnetic-controlled contacts (MUK) 3; the input tires 4 of the first group are connected to the movable contacts 5 of the first MHK keys, with each tire in K units and with the movable contacts 6 of the first group of M additional MUK 7; the input tires 8 of the second group are connected to the closing contacts 9 of the first group of additional MUK 7, with movable contacts 5 of the second MxL MUK (with each tire for L pieces) and with the moving contacts 10 of the second group of M additional MUK 11, the third group of input tires 12 are connected with closing contacts 13 of the second group of M additional MUK 1I and with moving contacts 5 of the third MxN MUK with N pieces with each bus. The closing contacts 13 of the first MxK Keys are connected to the first group of output tires I4, the second MxL keys to the second group of output tires 15, the third MxN keys with the third group of output tires 16 M pieces with each bus, so that the keys form MhK and MtL matrices and The input windings of 17 pulse transformers 2, referring to the first, second, etc. up to M rows of the first matrix, connected to the first serial circuits and connected to the outputs of the control unit 1. The input windings 17 of pulse transformers 2, relative to the first, second and up to M lines of the first and second additional matrices and the first and second groups of M additional magnetically controlled clocks, are connected to the third serial uenHj connected to the terminals of the first additional circuits and the second to the tsbshmu wire. The output windings 18 of the transformers belonging to the first, second and up to the rows of the first matrix are connected to second successive circuits and connected to the inputs of the formers 19. The output windings of the transformers 2 to the first and to (N + L + 2) columns the first and second additional matrices and the first and second additional groups of keys are connected to the fourth successive circuits and connected to the inputs of additional amplifiers of the formers 20; Auxiliary windings 21 of all pulse transformers 2 are connected with disconnecting contacts 22 of MUK 3. The outputs of forcing devices 19 are connected to the first group of inputs 23 of control unit 1; the outputs of additional amplifiers-forwarders 20 are connected to the second group of inputs 23 of control unit 1; The third group of inputs 24 of control unit 1 are connected to the system bus or manual control. In the initial state, all the closing contacts 9. and 13 are open, and the opening contacts 22 are closed. Sources of reference signals are connected to the input buses of the first group, and measuring devices to the input buses 12, the inputs of the test object are connected to the first group of output W1-sh 14, and the outputs of the test object are connected to the third group of output tires 16. If the number of outputs of the test object is large, then some of them can be connected to the second group of output tires 15. If the test object has many inputs and few outputs, then some of its inputs are connected to the output tires 15, in this case outputs busbars 15 are not connected. If the test object has more, than (K + L) inputs and few outputs, or vice versa, more than (to + L) outputs and few inputs, then the inputs (or outputs, respectively) are connected to all

output tires 14, 15 and 16,

Claims (1)

1. USSR Author's Certificate No. 520705, cl. H 03 K 17/02, 1971. 2, USSR Copyright Certificate No. 2522161 Cl. H 03 K 13/02 8/31/78 (prototype). Have il op-r I H