CN218825236U - Multi-way switch control circuit - Google Patents
Multi-way switch control circuit Download PDFInfo
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- CN218825236U CN218825236U CN202223314273.2U CN202223314273U CN218825236U CN 218825236 U CN218825236 U CN 218825236U CN 202223314273 U CN202223314273 U CN 202223314273U CN 218825236 U CN218825236 U CN 218825236U
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Abstract
The utility model discloses a multi-way switch control circuit, which comprises a main control chip, a driving chip and at least two switch loads; the main control chip is connected with the driving chip; at least two switch loads are respectively connected with the driving chip. The utility model provides a pair of multi-way switch control circuit, through using driver chip, because driver chip can export multichannel load signal simultaneously, solved when needs control multichannel load switch required components and parts kind in large quantity, the problem that the fabric swatch area is big to the use and the fabric swatch resource of reducible components and parts are easily promoted and are used.
Description
Technical Field
The utility model relates to an electronic circuit technical field especially relates to a multi-way switch control circuit.
Background
For controlling digital switching circuits, the current mainstream product practice is to switch on or off the current between the collector and the emitter of the transistor. Although the control mode has low cost and simple circuit, the control mode also has some defects, for example, when a multi-path load switch circuit needs to be controlled, a plurality of components are needed, and the circuit board layout area is large.
Therefore, improvements in the prior art are needed.
The above information is given as background information only to aid in understanding the present disclosure, and no determination or admission is made as to whether any of the above is available as prior art against the present disclosure.
SUMMERY OF THE UTILITY MODEL
The utility model provides a multi-way switch control circuit to solve among the prior art when the multichannel load switch of needs control required components and parts kind in large quantity, the big problem of fabric board area.
In order to achieve the above object, the present invention provides the following technical solutions:
a multi-switch control circuit comprises a main control chip, a driving chip and at least two switch loads;
the main control chip is connected with the driving chip;
at least two switch loads are respectively connected with the driving chip.
Furthermore, in the multi-way switch control circuit, the circuit further comprises a shift register;
the shift register is connected between the main control chip and the driving chip.
Furthermore, in the multi-way switch control circuit, the shift register is a serial-in parallel-out shift register.
Furthermore, in the multi-way switch control circuit, the shift register is connected with the main control chip through a DS port, an STCP port and an SHCP port.
Further, in the multi-way switch control circuit, the switch load comprises an electric switch, a capacitor, an indicator light and a resistor;
after the electric switch, the resistor and the indicator light are sequentially connected, two ends of the electric switch, the resistor and the indicator light are respectively connected with the driving chip;
one end of the capacitor is connected between the driving chip and the electric switch and is connected with a positive power supply, and the other end of the capacitor is grounded.
Further, in the multi-way switch control circuit, the electric switch is a relay.
Furthermore, in the multi-way switch control circuit, the indicator light is a light emitting diode.
Furthermore, in the multi-way switch control circuit, at least two shift registers are arranged, and the number of the driving chips corresponds to that of the shift registers;
at least two of the shift registers are connected in a cascade;
and one driving chip is correspondingly connected with one shift register.
Furthermore, in the multi-way switch control circuit, the circuit further comprises a dial circuit;
the dial-up circuit is connected with the main control chip.
Furthermore, in the multi-way switch control circuit, the circuit further comprises a communication circuit;
the communication circuit is connected with the main control chip.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a pair of multi-way switch control circuit, through using driver chip, because driver chip can export multichannel load signal simultaneously, solved when needs control multichannel load switch required components and parts kind in large quantity, the problem that the fabric swatch area is big to the use and the fabric swatch resource of reducible components and parts are easily promoted and are used.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a multi-way switch control circuit provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a multi-way switch control circuit provided in an embodiment of the present invention.
Reference numerals:
the circuit comprises a main control chip 1, a shift register 2, a driving chip 3, a switch load 4, a dial circuit 5 and a communication circuit 6;
an electric switch 41, a capacitor 42, an indicator lamp 43 and a resistor 44.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have the specific orientation, operate in the specific orientation configuration, and thus, should not be construed as limiting the present invention.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example one
In view of the above-mentioned drawbacks of the conventional multi-load switch control technology, the applicant of the present invention is based on practical experience and professional knowledge in this field, and uses the learning theory to actively make research and innovation, so as to hopefully create a technology capable of solving the drawbacks of the prior art, and make the multi-load switch control technology more practical. Through continuous research and design, and after repeated trial sample and improvement, the utility model discloses the practical value of utensil is established in the end.
Referring to fig. 1, an embodiment of the present invention provides a multi-way switch control circuit, which includes a main control chip 1, a driving chip 3, and at least two switch loads 4;
the main control chip 1 is connected with the driving chip 3;
at least two of the switch loads 4 are respectively connected with the driving chip 3.
It should be noted that, for the problems of the prior art that the number of types of required components is large and the layout area is large when the multiple load switches need to be controlled, the present embodiment proposes to use the driving chip 3, specifically, the driving chip 3 is added between the main control chip 1 and the switch load 4, and since the driving chip 3 can simultaneously output multiple load signals, the load switches 4 can be directly controlled, the use of components can be reduced, and the layout area resources can be saved.
Referring to fig. 1 again, in the present embodiment, the circuit further includes a shift register 2;
the shift register 2 is connected between the main control chip 1 and the driving chip 3.
It should be noted that, in the prior art, when a multi-path load switch needs to be controlled, besides the problem that the number of types of required components is large and the layout area is large, actually, when the number of switch load signals that need to be output is greater than the number of I/O ports of the main control chip 1, the pin capacity of the main control chip 1 must be expanded to meet the requirement of the connected load, even after the driving chip 3 is used in this embodiment, this problem still exists, and therefore, in order to solve this problem, the present embodiment proposes to use a shift register 2, specifically, to add the shift register 2 between the main control chip 1 and the driving chip 3. The shift register 2 is a serial-in parallel-out shift register, i.e. a serial-in parallel-out memory chip, and is connected with the main control chip 1 through a DS port, an STCP port and an SHCP port, so that the use of I/O ports of the main control chip 1 can be greatly reduced.
The main control chip 1 inputs a string of high and low level state sequences through a DS port, when an SHCP port and an STCP port are set to a high level and a low level, respectively, input data can only be stored and cannot be output, when both the SHCP port and the STCP port are set to a high level, data stored in the shift register 2 is locked and then sequentially output to the driving chip 3, and the driving chip 3 can amplify port current of the shift register 2, so that the driving capability is good. When the input end of the driving chip 3 is at a high level, the corresponding output end is at a high level; on the contrary, when the input end of the driving chip 3 is at a low level, the corresponding output end outputs a low level.
Referring to fig. 1 again, in the present embodiment, the switching load 4 includes an electric switch 41, a capacitor 42, an indicator lamp 43 and a resistor 44;
after the electric switch 41, the resistor 44 and the indicator lamp 43 are sequentially connected, two ends of the electric switch are respectively connected with the driving chip 3;
one end of the capacitor 42 is connected between the driving chip 3 and the electric switch 41 and is connected to a positive power supply (+ 12V), and the other end of the capacitor 42 is grounded.
Exemplarily, in fig. 1, the electric switch 41 is illustrated as a relay, and the indicator light 43 is illustrated as a light emitting diode.
It should be noted that the power-on state of the coil of pin 1 and pin 2 of the relay depends on the level output by the output terminal of the driving chip 3, and also determines the output state of the switch.
In addition, because when the external sound is noisy, the action of the relay cannot be judged, so that the problem that the output state of the load cannot be identified exists, the indicating lamp 43 is provided, and then the state of the relay is judged by judging whether the indicating lamp 43 is lighted or not, so that the method is very visual and effective.
Referring to fig. 2, in the present embodiment, there are at least two shift registers 2, and the number of the driving chips 3 corresponds to the number of the shift registers 2;
at least two of the shift registers 2 are connected in a cascade;
one of the driving chips 3 is correspondingly connected with one of the shift registers 2.
It should be noted that, when the number of load output channels is still too small to meet the requirement, the number of load output channels may be increased by an internal cascade connection manner between at least two shift registers 2 (taking m register chips as an example), that is, different shift registers 2 are connected in parallel by data input control pins, and this method may expand 10 × m load output channels by using the minimum number of I/O ports of the main control chip 1.
In this embodiment, for the expansion of the I/O port of the main control chip 1, a port may be defined by software, or a dial address may be changed by hardware, so as to obtain more switching value output channels.
Referring to fig. 2, in the first embodiment, the circuit further includes a dial circuit 5;
the dial circuit 5 is connected with the main control chip 1.
Referring again to fig. 2, in the second embodiment, the circuit further includes a communication circuit 6;
the communication circuit 6 is connected with the main control chip 1.
It should be noted that the two embodiments of expanding the I/O port of the main control chip 1 are suitable for the case where the board layout size is limited, and at this time, the I/0 port of the main control chip 1 may be defined by software in a manner of adding the dial circuit 5 and/or the communication circuit 6 to the outside of the main control chip, and n-bit dial addresses are set to implement master-slave communication, so as to multiply the load number.
Although the terms main control chip, shift register, driving chip, switch load, dial circuit, communication circuit, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any one of the additional limitations of the present invention.
The embodiment of the utility model provides a pair of multi-way switch control circuit, through using driver chip, because driver chip can export multichannel load signal simultaneously, it is many to have solved required components and parts kind when needs control multichannel load switch, and the problem that the cloth board area is big to the use and the cloth board resource of reducible components and parts are easily promoted and are used.
In conclusion, after reading this detailed disclosure, those skilled in the art will appreciate that the foregoing detailed disclosure may be presented by way of example only, and may not be limiting. Those skilled in the art will appreciate that the present application is intended to cover various reasonable variations, adaptations, and modifications of the embodiments described herein, even though not expressly described herein. Such alterations, improvements, and modifications are intended to be suggested by this application and are within the spirit and scope of the exemplary embodiments of the application.
Furthermore, certain terminology has been used in this application to describe embodiments of the application. For example, "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various portions of this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined as suitable in one or more embodiments of the application.
It should be appreciated that in the foregoing description of embodiments of the present application, various features are grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one feature. This is not to be taken as an admission that any of the features of the claims are essential, and it is fully possible for a person skilled in the art to extract some of them as separate embodiments when reading the present application. That is, the embodiments in the present application may also be understood as an integration of a plurality of sub-embodiments. And each sub-embodiment described herein is equally applicable to less than all features of a single foregoing disclosed embodiment.
Each patent, patent application, publication of a patent application, and other material, such as articles, books, descriptions, publications, documents, articles, and the like, cited herein is hereby incorporated by reference. All matters hithertofore set forth herein except as related to any prosecution history, may be inconsistent or conflicting with this document or any prosecution history which may have a limiting effect on the broadest scope of the claims. Now or later associated with this document. For example, if there is any inconsistency or conflict in the description, definition, and/or use of terms associated with any of the included materials with respect to the terms, descriptions, definitions, and/or uses associated with this document, the terms in this document are used.
Finally, it should be understood that the embodiments of the application disclosed herein are illustrative of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Accordingly, the disclosed embodiments are presented by way of example only, and not limitation. Those skilled in the art may implement the present application in alternative configurations according to the embodiments of the present application. Thus, embodiments of the present application are not limited to those precisely described in the application.
Claims (10)
1. A multi-switch control circuit is characterized in that the circuit comprises a main control chip (1), a driving chip (3) and at least two switch loads (4);
the main control chip (1) is connected with the driving chip (3);
at least two switch loads (4) are respectively connected with the driving chip (3).
2. A multiple switch control circuit according to claim 1, wherein the circuit further comprises a shift register (2);
the shift register (2) is connected between the main control chip (1) and the drive chip (3).
3. A multiswitch control circuit according to claim 2, in which the shift register (2) is a serial-in parallel-out shift register.
4. A multiswitch control circuit according to claim 3, characterised in that the shift register (2) is connected to the main control chip (1) via a DS port, an STCP port, an SHCP port.
5. A multiswitch control circuit according to claim 1, characterised in that the switching load (4) comprises an electric switch (41), a capacitor (42), an indicator light (43) and a resistor (44);
after the electric switch (41), the resistor (44) and the indicator light (43) are sequentially connected, two ends of the electric switch are respectively connected with the driving chip (3);
one end of the capacitor (42) is connected between the driving chip (3) and the electric switch (41) and is connected with a positive power supply, and the other end of the capacitor (42) is grounded.
6. A multiswitch control circuit according to claim 5, in which the electrical switch (41) is a relay.
7. A multiswitch control circuit as claimed in claim 5 in which the indicator light (43) is a light emitting diode.
8. A multiple switch control circuit according to claim 2, wherein said shift registers (2) are at least two, and the number of said driver chips (3) corresponds to said shift registers (2);
at least two of the shift registers (2) are connected in a cascade;
one of the driving chips (3) is correspondingly connected with one of the shift registers (2).
9. The multiple switch control circuit of claim 8, wherein said circuit further comprises a dial circuit (5);
the dial-up circuit (5) is connected with the main control chip (1).
10. A multiswitch control circuit as claimed in claim 8, characterized in that the circuit further comprises a communication circuit (6);
the communication circuit (6) is connected with the main control chip (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223314273.2U CN218825236U (en) | 2022-12-06 | 2022-12-06 | Multi-way switch control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223314273.2U CN218825236U (en) | 2022-12-06 | 2022-12-06 | Multi-way switch control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218825236U true CN218825236U (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223314273.2U Active CN218825236U (en) | 2022-12-06 | 2022-12-06 | Multi-way switch control circuit |
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| Country | Link |
|---|---|
| CN (1) | CN218825236U (en) |
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- 2022-12-06 CN CN202223314273.2U patent/CN218825236U/en active Active
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