CN114553206A - Circuit structure for multi-path selection - Google Patents

Abstract

The invention discloses a circuit structure for multi-path selection, which comprises an alternative circuit module, wherein the alternative circuit module is used as a minimum substructure, and a plurality of substructures are recursively cascaded. Therefore, the circuit structure of the invention realizes simpler and safer multi-path selection function, and realizes the multi-path switching function by cascade connection by taking the alternative circuit as the minimum unit. The structure is characterized in that the most front stage of the circuit is connected with an input signal, the output of the front stage alternative circuit is the input of the rear stage alternative circuit, and the front stage alternative circuit and the rear stage alternative circuit are cascaded layer by layer until the output of the most final stage unit, so that the function of multi-path selection is realized.

Description

Circuit structure for multi-path selection

Technical Field

The present invention relates to the field of electronic circuit technology, and more particularly, to a circuit structure for multiplexing.

Background

The multiplexing is a common functional circuit in electrical engineering, and the main function of the multiplexing is to select and output a certain path from a plurality of signals according to needs. At present, a common multi-path selection structure is a parallel on-off multi-path selection, that is, all signals are connected to an output after passing through a switch circuit, and when a certain path needs to be selected, the switch circuit where the signal is located is turned on, and the rest switches are turned off. However, the structure shown in fig. 1 in the prior art has the following problems that since each switch is independently controlled, a plurality of signals can be simultaneously output, and a short circuit danger can be caused in a serious condition.

Disclosure of Invention

The invention aims to provide a circuit structure for multi-path selection, which realizes a simpler and safer multi-path selection function.

The invention provides a circuit structure for multi-path selection, which comprises an alternative circuit module, wherein the alternative circuit module is used as a minimum substructure, and a plurality of substructures are recursively cascaded.

Preferably, a plurality of the one-of-two circuit modules are arranged in a hierarchy.

Preferably, the relationship between the number N of the first-tier one-out-of-two circuit modules and the number M of the externally input multiple signals satisfies 2N > ═ M;

from the second level, the outputs of all the previous-level alternative circuit modules are used as the inputs of the next-level alternative circuit modules, the iteration arrangement is carried out, and the number of the alternative circuit modules of each level is half of that of the previous level; until only one alternative circuit module is left as the last level, the output of the alternative circuit module of the last level is the output of the multi-path selection.

The circuit structure for multi-path selection provided by the invention realizes a simpler and safer multi-path selection function, and realizes a multi-path switching function by cascading with an alternative circuit as a minimum unit. The structure is characterized in that the most front stage of the circuit is connected with an input signal, the output of the front stage alternative circuit is the input of the rear stage alternative circuit, and the front stage alternative circuit and the rear stage alternative circuit are cascaded layer by layer until the output of the most final stage unit, so that the function of multi-path selection is realized.

Drawings

FIG. 1 is a prior art circuit of the present invention in the background;

FIG. 2 is a diagram of an alternative circuit module according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a circuit structure for multiplexing in an embodiment of the present invention;

FIG. 4 is a schematic connection diagram for implementing multi-path selection of 3-4 signals according to an embodiment of the present invention;

FIG. 5 is a schematic connection diagram for implementing multi-path selection of 5-8 signals according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 2, the present invention provides a circuit structure for multi-path selection, which includes an alternative circuit module, and a plurality of substructures are recursively cascaded with the alternative circuit module as a minimum substructure.

Those skilled in the art can understand that the circuit structure provided by the invention realizes a simpler and safer multi-path selection function, and realizes a multi-path switching function through cascade connection by taking an alternative circuit as a minimum unit. The structure is characterized in that the most front stage of the circuit is connected with an input signal, the output of the front stage alternative circuit is the input of the rear stage alternative circuit, and the front stage alternative circuit and the rear stage alternative circuit are cascaded layer by layer until the output of the most final stage unit, so that the function of multi-path selection is realized.

As shown in fig. 3, a plurality of the one-out-of-two circuit modules are arranged in a hierarchy;

the relation between the number N of the first-level alternative circuit modules and the number M of the externally input multi-channel signals meets 2N > -M;

from the second level, the outputs of all the previous-level alternative circuit modules are used as the inputs of the next-level alternative circuit modules, the iteration arrangement is carried out, and the number of the alternative circuit modules of each level is half of that of the previous level; until only one alternative circuit module is left as the last level, the output of the alternative circuit module of the last level is the output of the multi-path selection.

As will be understood by those skilled in the art, FIG. 3 is divided into n layers in the transverse direction, and the number of layers in the longitudinal direction decreases from n to half layer by layer. If 2-path signal selection is to be realized, an alternative module is used, as shown in the figure 2; if multi-path selection of 3-4 paths of signals is to be realized, connecting the alternative circuit module according to the mode shown in figure 4; if 5-8 paths of signals are selected, connection is carried out according to the mode of figure 5.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (3)

1. A circuit structure for multi-path selection is characterized by comprising an alternative circuit module, wherein the alternative circuit module is used as a minimum substructure, and a plurality of substructures are recursively cascaded.

2. The circuit structure for multiplexing according to claim 1, wherein a plurality of said one of the two circuit blocks are arranged in a hierarchy.

3. The circuit structure for multiplexing according to claim 1 or 2, wherein the relation between the number N of the one-out-of-two circuit blocks of the first hierarchy and the number M of the externally input multiplexing signals satisfies 2N > ═ M;

from the second level, the outputs of all the previous-level alternative circuit modules are used as the inputs of the next-level alternative circuit modules, the iteration arrangement is carried out, and the number of the alternative circuit modules of each level is half of that of the previous level; until only one alternative circuit module is left as the last level, the output of the alternative circuit module of the last level is the output of the multi-path selection.

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