CN214800046U - Device for multiplexing mainboard boards, electronic product and communication equipment - Google Patents
Device for multiplexing mainboard boards, electronic product and communication equipment Download PDFInfo
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- CN214800046U CN214800046U CN202120291819.3U CN202120291819U CN214800046U CN 214800046 U CN214800046 U CN 214800046U CN 202120291819 U CN202120291819 U CN 202120291819U CN 214800046 U CN214800046 U CN 214800046U
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Abstract
The utility model discloses a device, electronic product and communication equipment for mainboard integrated circuit board is multiplexing relates to the electron field. The device includes: the circuit comprises a first resistor, a second resistor, a first interface, a second interface and a third interface; the first interface is sequentially connected with the first resistor, the second resistor and the third interface, and the second interface is connected between the first resistor and the second resistor; the first interface, the second interface and the third interface are connected with the mainboard board card. The port quantity of the end mainboard integrated circuit board that the device used through this scheme is very few, and the degree of difficulty that increases for hardware design is also very little, and same integrated circuit board obtains maximum reuse through the device of this scheme, and software maintenance quantity and hardware maintenance quantity can both reduce, effectively reduces the integrated circuit board kind of production simultaneously, reduces the integrated circuit board quantity of after-sale stock, consequently can practice thrift the cost, reduces whole operation cost.
Description
Technical Field
The utility model relates to an electronic product field especially relates to a device, electronic product and communication equipment that is used for mainboard integrated circuit board to multiplex.
Background
All electronic products or home appliances suffer from the same problem, and in the current situation, for example, home appliances often use the same design, and derive a series of product models by changing the ID or by minor functional adjustments. The existing scheme is that a mainboard is required to be subjected to fine adjustment of functions according to fine adjustment of the functions, or the mainboard is required to be subjected to fine adjustment again according to different products to adapt to new types of products, the design of the mainboard or the change of materials on the mainboard are required to be adjusted every time the fine adjustment of the functions or the change of the product types are required, the design of the mainboard is complex, the time consumption is long, the mainboard is produced for many times due to small adjustment, a large amount of resources are required to be consumed for software maintenance and hardware maintenance in the later period, and the whole operation cost of the series of products is greatly improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art not enough, provide a device, electronic product and communication equipment that is used for mainboard integrated circuit board to multiplex.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
an apparatus for motherboard multiplexing, comprising: the circuit comprises a first resistor, a second resistor, a first interface, a second interface and a third interface;
the first interface is sequentially connected with the first resistor, the second resistor and the third interface, and the second interface is connected between the first resistor and the second resistor; the resistance value of the first resistor and the resistance value of the second resistor are confirmed according to the type of an external product;
the first interface, the second interface and the third interface are connected with a mainboard card;
the mainboard board card is used for confirming the type of the external product according to the ratio of the resistance value of the first resistor to the resistance value of the second resistor.
The utility model has the advantages that: according to the scheme, the first resistor, the second resistor and the third interface are sequentially connected through the first interface, and the second interface is connected between the first resistor and the second resistor; the resistance value of the first resistor and the resistance value of the second resistor are confirmed according to the type of an external product; the first interface, the second interface and the third interface are connected with a mainboard card; the port quantity of the end mainboard integrated circuit board that the device used through this scheme is very few, and the degree of difficulty that increases for hardware design is also very little, and same integrated circuit board obtains maximum reuse through the device of this scheme, and software maintenance quantity and hardware maintenance quantity can both reduce, effectively reduces the integrated circuit board kind of production simultaneously, reduces the integrated circuit board quantity of after-sale stock, consequently can practice thrift the cost, reduces whole operation cost.
Further, the resistance value of the first resistor is 0K Ω, and the resistance value of the second resistor is 100K Ω;
or the resistance value of the first resistor is 91K omega, and the resistance value of the second resistor is 8.2K omega;
or the resistance value of the first resistor is 82K omega, and the resistance value of the second resistor is 16K omega;
or the resistance value of the first resistor is 75K omega, and the resistance value of the second resistor is 24K omega;
or the resistance value of the first resistor is 68K omega, and the resistance value of the second resistor is 33K omega;
or the resistance value of the first resistor is 56K omega, and the resistance value of the second resistor is 39K omega;
or the resistance value of the first resistor is 47K omega, and the resistance value of the second resistor is 47K omega;
or the resistance value of the first resistor is 39K omega, and the resistance value of the second resistor is 56K omega;
or the resistance value of the first resistor is 33K omega, and the resistance value of the second resistor is 68K omega;
or the resistance value of the first resistor is 24K omega, and the resistance value of the second resistor is 75K omega;
or the resistance value of the first resistor is 16K omega, and the resistance value of the second resistor is 82K omega;
or the resistance value of the first resistor is 8.2K omega, and the resistance value of the second resistor is 91K omega;
or the resistance value of the first resistor is 100K omega, and the resistance value of the second resistor is 0K omega.
The beneficial effect of adopting the further scheme is that: the device corresponding to each group of resistors is connected to the mainboard board card to represent that the corresponding type of product is accessed, the corresponding type of product can be known according to each group of resistance value mainboard board card, mainboard hardware or software does not need to be modified greatly, and mainboard port resources are few. When different mainboard integrated circuits boards need to be multiplexed on different products, the device of the scheme can also realize multiplexing to the maximum extent.
Further, the first interface is specifically used for connecting a power supply end of the motherboard card;
the second interface is specifically used for connecting a resistance value acquisition end of the mainboard card;
the third interface is specifically used for connecting the grounding end of the mainboard board card.
The beneficial effect of adopting the further scheme is that: the device is connected to the corresponding mainboard board card, the mainboard identifies the type of an access product according to the resistance value proportion of the access device, and the behavior mode of the mainboard board card is changed according to the product type to realize resource reuse in the mainboard board card.
Further, the second interface is specifically used for connecting an AD converter of the motherboard card.
The beneficial effect of adopting the further scheme is that: according to the scheme, the voltage value of the second resistor in the device is acquired through the AD converter, the resistance relation between the first resistor and the second resistor is judged according to the voltage value, the resistance relation is transmitted to the main control chip of the mainboard board card, and the main control chip judges what product corresponds to according to the resistance relation.
Further, the AD converter includes ADs7830, AD9609, or an AD converter carried by a main control chip in a motherboard card.
The utility model provides an another kind of technical scheme of above-mentioned technical problem as follows:
an electronic product, comprising: the mainboard integrated circuit board, the device for multiplexing the mainboard integrated circuit board and the board-to-board connector for connection are connected with the mainboard integrated circuit board according to any one of the schemes.
The utility model has the advantages that: the device for multiplexing the mainboard board card is sequentially connected with the first resistor, the second resistor and the third interface through the first interface, and the second interface is connected between the first resistor and the second resistor; the resistance value of the first resistor and the resistance value of the second resistor are confirmed according to the type of an external product; the first interface, the second interface and the third interface are connected with a mainboard card; the port quantity of the end mainboard integrated circuit board that the device used through this scheme is very few, and the degree of difficulty that increases for hardware design is also very little, and same integrated circuit board obtains maximum reuse through the device of this scheme, and software maintenance quantity and hardware maintenance quantity can both reduce, effectively reduces the integrated circuit board kind of production simultaneously, reduces the integrated circuit board quantity of after-sale stock, consequently can practice thrift the cost, reduces whole operation cost.
The utility model provides an another kind of technical scheme of above-mentioned technical problem as follows:
a refrigerator, comprising: the mainboard integrated circuit board, the device for multiplexing the mainboard integrated circuit board and the board-to-board connector for connection in any scheme are connected with the mainboard integrated circuit board.
The utility model has the advantages that: the device for multiplexing the mainboard board card is sequentially connected with the first resistor, the second resistor and the third interface through the first interface, and the second interface is connected between the first resistor and the second resistor; the resistance value of the first resistor and the resistance value of the second resistor are confirmed according to the type of an external product; the first interface, the second interface and the third interface are connected with a mainboard card; the port quantity of the end mainboard integrated circuit board that the device used through this scheme is very few, and the degree of difficulty that increases for hardware design is also very little, and same integrated circuit board obtains maximum reuse through the device of this scheme, and software maintenance quantity and hardware maintenance quantity can both reduce, effectively reduces the integrated circuit board kind of production simultaneously, reduces the integrated circuit board quantity of after-sale stock, consequently can practice thrift the cost, reduces whole operation cost.
The utility model provides an another kind of technical scheme of above-mentioned technical problem as follows:
a washing machine comprising: the mainboard integrated circuit board, the device for multiplexing the mainboard integrated circuit board and the board-to-board connector for connection in any scheme are connected with the mainboard integrated circuit board.
The utility model has the advantages that: the device for multiplexing the mainboard board card is sequentially connected with the first resistor, the second resistor and the third interface through the first interface, and the second interface is connected between the first resistor and the second resistor; the resistance value of the first resistor and the resistance value of the second resistor are confirmed according to the type of an external product; the first interface, the second interface and the third interface are connected with a mainboard card; the port quantity of the end mainboard integrated circuit board that the device used through this scheme is very few, and the degree of difficulty that increases for hardware design is also very little, and same integrated circuit board obtains maximum reuse through the device of this scheme, and software maintenance quantity and hardware maintenance quantity can both reduce, effectively reduces the integrated circuit board kind of production simultaneously, reduces the integrated circuit board quantity of after-sale stock, consequently can practice thrift the cost, reduces whole operation cost.
The utility model provides an another kind of technical scheme of above-mentioned technical problem as follows:
a communication device, comprising: the mainboard integrated circuit board, the device for multiplexing the mainboard integrated circuit board and the board-to-board connector for connection in any scheme are connected with the mainboard integrated circuit board.
The utility model has the advantages that: the device for multiplexing the mainboard board card is sequentially connected with the first resistor, the second resistor and the third interface through the first interface, and the second interface is connected between the first resistor and the second resistor; the resistance value of the first resistor and the resistance value of the second resistor are confirmed according to the type of an external product; the first interface, the second interface and the third interface are connected with a mainboard card; the port quantity of the end mainboard integrated circuit board that the device used through this scheme is very few, and the degree of difficulty that increases for hardware design is also very little, and same integrated circuit board obtains maximum reuse through the device of this scheme, and software maintenance quantity and hardware maintenance quantity can both reduce, effectively reduces the integrated circuit board kind of production simultaneously, reduces the integrated circuit board quantity of after-sale stock, consequently can practice thrift the cost, reduces whole operation cost.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Drawings
Fig. 1 is a block diagram of a device for multiplexing motherboard cards according to an embodiment of the present invention;
fig. 2 is a circuit structure diagram of a device for multiplexing motherboard cards according to another embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a numerical relationship between a product ID and the first resistor and the second resistor according to an embodiment of the present invention.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, for the utility model provides a device for mainboard integrated circuit board is multiplexing, include: a first resistor 11, a second resistor 12, a first interface 13, a second interface 14 and a third interface 15;
the first interface 13 is sequentially connected with the first resistor 11, the second resistor 12 and the third interface 15, and the second interface 14 is connected between the first resistor 11 and the second resistor 12; the method comprises the following steps of determining the resistance value of a first resistor 11 and the resistance value of a second resistor 12 according to the type of an external product;
the first interface 13, the second interface 14 and the third interface 15 are connected with a mainboard card;
the mainboard board card is used for confirming the type of the external product according to the ratio of the resistance value of the first resistor 11 to the resistance value of the second resistor 12.
In one embodiment, as shown in fig. 2, the apparatus for multiplexing motherboard cards may include: the resistor R397 has the resistance value of 82K omega, the precision is 1%, and the resistor R397 corresponds to the first resistor 11; the resistor R15 has the resistance value of 16K omega and the precision of 1 percent, and is equivalent to the second resistor 12; the power source terminal VDDAO _1.8V is sequentially connected to R397, R15 and the ground terminal sar adc _ GND, the HW _ ID1 is connected between R397 and R15 and used for acquiring a voltage value of R15, and the HW _ ID1, that is, the second interface 14, is a voltage acquisition terminal of the AD converter; the power source terminal VDDAO _1.8V is the first interface 13, and the ground terminal sar adc _ GND is the third interface 15.
In an embodiment, as shown in fig. 3, HW _ ID represents a product model, pull-up represents a resistance value of the first resistor 11, pull-down represents a resistance value of the second resistor 12, and ADC value represents a value of the AD converter at the time of the current resistance value. Only 13 kinds of circuit resistance values are listed here, the precision of the actually used AD converter is high enough, the resistor distribution can be made thinner, and a circuit with 16 kinds of resistance values can be formed, and can be used for identifying 16 types of products. It should be noted that, actually, when the accuracy of the AD converter is high enough, more sets of resistance ratios can be identified, so that only 16 sets may be specifically defined, and more sets may also be provided.
It should be noted that, the practical application of the device of this scheme may be that a new type of product needs to be accessed to the motherboard card, and the product needs to be distinguished according to the characteristics of the product itself in the software processing process, for example, the user interface changes, the definition of some hardware port functions changes, at this time, some information needs to be given to the software layer to identify which current product is, when the new type of product is accessed at this time, the device of this scheme is accessed at the same time, the motherboard card collects resistance value information in the device, the product ID of the new type can be determined according to the resistance value information, what product of this product is can be obtained, and what software processing is performed correspondingly. Each device corresponds to a group of resistors and represents a product model; 16 sets of resistors can be made into 16 devices, identifying 16 products. Each specific group represents which type of product can be set according to the actual application requirements.
Before this, need reserve the interface of connecting this scheme device at the mainboard integrated circuit board, can set for the board to the board connector of 3 pins or 4 pins of fixed standard, concrete pin quantity can be confirmed according to the reality, can realize that mainboard integrated circuit board and this scheme device are connected and guarantee that circuit path is normal can, specifically not inject pin quantity.
The scheme is that the first interface 13 is sequentially connected with the first resistor 11, the second resistor 12 and the third interface 15, and the second interface 14 is connected between the first resistor 11 and the second resistor 12; the method comprises the following steps of determining the resistance value of a first resistor 11 and the resistance value of a second resistor 12 according to the type of an external product; the first interface 13, the second interface 14 and the third interface 15 are connected with a mainboard card; the port quantity of the end mainboard integrated circuit board that the device used through this scheme is very few, and the degree of difficulty that increases for hardware design is also very little, and same integrated circuit board obtains maximum reuse through the device of this scheme, and software maintenance quantity and hardware maintenance quantity can both reduce, effectively reduces the integrated circuit board kind of production simultaneously, reduces the integrated circuit board quantity of after-sale stock, consequently can practice thrift the cost, reduces whole operation cost.
Preferably, in any of the above embodiments, the resistance value of the first resistor 11 is 0K Ω, and the resistance value of the second resistor 12 is 100K Ω; it should be noted that the first resistor may also be NC, i.e. the resistance is infinite, because the AD converter detects not the resistance of the two resistors, but the ratio of the two resistors. NC stands for infinity and can be recognized, so that a first resistance of 0 ohm or NC is possible.
Or, the resistance of the first resistor 11 is 91K Ω, and the resistance of the second resistor 12 is 8.2K Ω;
or, the resistance of the first resistor 11 is 82K Ω, and the resistance of the second resistor 12 is 16K Ω;
or, the resistance of the first resistor 11 is 75K Ω, and the resistance of the second resistor 12 is 24K Ω;
or, the resistance of the first resistor 11 is 68K Ω, and the resistance of the second resistor 12 is 33K Ω;
or, the resistance of the first resistor 11 is 56K Ω, and the resistance of the second resistor 12 is 39K Ω;
or, the resistance of the first resistor 11 is 47K Ω, and the resistance of the second resistor 12 is 47K Ω;
or, the resistance of the first resistor 11 is 39K Ω, and the resistance of the second resistor 12 is 56K Ω;
or, the resistance of the first resistor 11 is 33K Ω, and the resistance of the second resistor 12 is 68K Ω;
or, the resistance of the first resistor 11 is 24K Ω, and the resistance of the second resistor 12 is 75K Ω;
or, the resistance of the first resistor 11 is 16K Ω, and the resistance of the second resistor 12 is 82K Ω;
or the resistance value of the first resistor 11 is 8.2K Ω, and the resistance value of the second resistor 12 is 91K Ω;
or, the resistance of the first resistor 11 is 100K Ω, and the resistance of the second resistor 12 is 0K Ω. It should be noted that the second resistor may also be NC, i.e. the resistance is infinite, because the AD converter detects not the resistance of the two resistors, but the ratio of the two resistors. NC stands for infinity and can be recognized, so that a second resistance of 0 ohm or NC is possible.
The device corresponding to each group of resistors is connected to the mainboard board card to represent that the corresponding type of product is accessed, the corresponding type of product can be known according to each group of resistance value mainboard board card, mainboard hardware or software does not need to be modified greatly, and mainboard port resources are few. When different mainboard integrated circuits boards need to be multiplexed on different products, the device of the scheme can also realize multiplexing to the maximum extent.
Preferably, in any of the above embodiments, the first interface 13 is specifically configured to be connected to a power supply terminal of a motherboard card;
the second interface 14 is specifically used for connecting a resistance value acquisition end of the mainboard card;
the third interface 15 is specifically used for connecting a ground terminal of the motherboard card.
The device is connected to the corresponding mainboard board card, the mainboard identifies the type of an accessed product according to the resistance value of the access device, and resource reuse in the mainboard board card is realized according to the type of the product.
Preferably, in any of the above embodiments, the second interface 14 is specifically used for connecting an AD converter of a motherboard card.
According to the scheme, the voltage value of the second resistor 12 in the device is collected through the AD converter, the resistance relation between the first resistor 11 and the second resistor 12 is judged according to the voltage value, the resistance relation is transmitted to the main control chip of the mainboard board card, and the main control chip judges what product corresponds to according to the resistance relation.
Preferably, in any of the above embodiments, the AD converter includes an AD converter carried by the ADs7830, the AD9609, or a main control chip in a motherboard card. Note that, the external AD converter may be: ADS7830 of TI, AD9609 of Analog, the built-in AD converter may be: the main control chip with the AD converter can be selected to be universal in the market, selected according to actual application requirements and not specifically limited.
In one embodiment, an electronic product includes: mainboard integrated circuit board, be connected with mainboard integrated circuit board be used for multiplexing device of mainboard integrated circuit board, the board to board connector that is used for connecting as above-mentioned any embodiment.
The device for multiplexing the mainboard boards is sequentially connected with a first resistor 11, a second resistor 12 and a third interface 15 through a first interface 13, and a second interface 14 is connected between the first resistor 11 and the second resistor 12; the method comprises the following steps of determining the resistance value of a first resistor 11 and the resistance value of a second resistor 12 according to the type of an external product; the first interface 13, the second interface 14 and the third interface 15 are connected with a mainboard card; the port quantity of the end mainboard integrated circuit board that the device used through this scheme is very few, and the degree of difficulty that increases for hardware design is also very little, and same integrated circuit board obtains maximum reuse through the device of this scheme, and software maintenance quantity and hardware maintenance quantity can both reduce, effectively reduces the integrated circuit board kind of production simultaneously, reduces the integrated circuit board quantity of after-sale stock, consequently can practice thrift the cost, reduces whole operation cost.
In one embodiment, a refrigerator includes: mainboard integrated circuit board, be connected with mainboard integrated circuit board be used for multiplexing device of mainboard integrated circuit board, the board to the board connector that is used for connecting as above-mentioned any embodiment.
The device for multiplexing the mainboard boards is sequentially connected with a first resistor 11, a second resistor 12 and a third interface 15 through a first interface 13, and a second interface 14 is connected between the first resistor 11 and the second resistor 12; the method comprises the following steps of determining the resistance value of a first resistor 11 and the resistance value of a second resistor 12 according to the type of an external product; the first interface 13, the second interface 14 and the third interface 15 are connected with a mainboard card; the port quantity of the end mainboard integrated circuit board that the device used through this scheme is very few, and the degree of difficulty that increases for hardware design is also very little, and same integrated circuit board obtains maximum reuse through the device of this scheme, and software maintenance quantity and hardware maintenance quantity can both reduce, effectively reduces the integrated circuit board kind of production simultaneously, reduces the integrated circuit board quantity of after-sale stock, consequently can practice thrift the cost, reduces whole operation cost.
In one embodiment, a washing machine includes: mainboard integrated circuit board, be connected with mainboard integrated circuit board be used for multiplexing device of mainboard integrated circuit board, the board to the board connector that is used for connecting as above-mentioned any embodiment.
The device for multiplexing the mainboard boards is sequentially connected with a first resistor 11, a second resistor 12 and a third interface 15 through a first interface 13, and a second interface 14 is connected between the first resistor 11 and the second resistor 12; the method comprises the following steps of determining the resistance value of a first resistor 11 and the resistance value of a second resistor 12 according to the type of an external product; the first interface 13, the second interface 14 and the third interface 15 are connected with a mainboard card; the port quantity of the end mainboard integrated circuit board that the device used through this scheme is very few, and the degree of difficulty that increases for hardware design is also very little, and same integrated circuit board obtains maximum reuse through the device of this scheme, and software maintenance quantity and hardware maintenance quantity can both reduce, effectively reduces the integrated circuit board kind of production simultaneously, reduces the integrated circuit board quantity of after-sale stock, consequently can practice thrift the cost, reduces whole operation cost.
In an embodiment, a communication device includes: mainboard integrated circuit board, be connected with mainboard integrated circuit board be used for multiplexing device of mainboard integrated circuit board, the board to the board connector that is used for connecting as above-mentioned any embodiment.
The device for multiplexing the mainboard boards is sequentially connected with a first resistor 11, a second resistor 12 and a third interface 15 through a first interface 13, and a second interface 14 is connected between the first resistor 11 and the second resistor 12; the method comprises the following steps of determining the resistance value of a first resistor 11 and the resistance value of a second resistor 12 according to the type of an external product; the first interface 13, the second interface 14 and the third interface 15 are connected with a mainboard card; the port quantity of the end mainboard integrated circuit board that the device used through this scheme is very few, and the degree of difficulty that increases for hardware design is also very little, and same integrated circuit board obtains maximum reuse through the device of this scheme, and software maintenance quantity and hardware maintenance quantity can both reduce, effectively reduces the integrated circuit board kind of production simultaneously, reduces the integrated circuit board quantity of after-sale stock, consequently can practice thrift the cost, reduces whole operation cost.
It is understood that some or all of the alternative embodiments described above may be included in some embodiments.
It should be noted that the above embodiments are product embodiments corresponding to the previous method embodiments, and for the description of each optional implementation in the product embodiments, reference may be made to corresponding descriptions in the above method embodiments, and details are not described here again.
In the description herein, references to the description of the terms "embodiment one," "embodiment two," "example," "specific example" or "some examples," etc., mean that a particular method, apparatus, or feature described in connection with the embodiment or example is included in at least one embodiment or example of the present invention.
In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, methods, apparatuses, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The utility model provides a device that is used for mainboard integrated circuit board multiplexing which characterized in that includes: the circuit comprises a first resistor, a second resistor, a first interface, a second interface and a third interface;
the first interface is sequentially connected with the first resistor, the second resistor and the third interface, and the second interface is connected between the first resistor and the second resistor; the resistance value of the first resistor and the resistance value of the second resistor are confirmed according to the type of an external product;
the first interface, the second interface and the third interface are connected with a mainboard card;
the mainboard board card is used for confirming the type of the external product according to the ratio of the resistance value of the first resistor to the resistance value of the second resistor.
2. The device according to claim 1, wherein the first resistor has a resistance of 0K Ω, and the second resistor has a resistance of 100K Ω;
or the resistance value of the first resistor is 91K omega, and the resistance value of the second resistor is 8.2K omega;
or the resistance value of the first resistor is 82K omega, and the resistance value of the second resistor is 16K omega;
or the resistance value of the first resistor is 75K omega, and the resistance value of the second resistor is 24K omega;
or the resistance value of the first resistor is 68K omega, and the resistance value of the second resistor is 33K omega;
or the resistance value of the first resistor is 56K omega, and the resistance value of the second resistor is 39K omega;
or the resistance value of the first resistor is 47K omega, and the resistance value of the second resistor is 47K omega;
or the resistance value of the first resistor is 39K omega, and the resistance value of the second resistor is 56K omega;
or the resistance value of the first resistor is 33K omega, and the resistance value of the second resistor is 68K omega;
or the resistance value of the first resistor is 24K omega, and the resistance value of the second resistor is 75K omega;
or the resistance value of the first resistor is 16K omega, and the resistance value of the second resistor is 82K omega;
or the resistance value of the first resistor is 8.2K omega, and the resistance value of the second resistor is 91K omega;
or the resistance value of the first resistor is 100K omega, and the resistance value of the second resistor is 0K omega.
3. The device according to claim 1 or 2, wherein the first interface is specifically configured to connect to a power supply terminal of the motherboard;
the second interface is specifically used for connecting a resistance value acquisition end of the mainboard card;
the third interface is specifically used for connecting the grounding end of the mainboard board card.
4. The device according to claim 1, wherein the second interface is specifically configured to connect to an AD converter of the motherboard.
5. The device of claim 4, wherein the AD converter comprises an ADS7830, an AD9609 or an AD converter of a main control chip of the motherboard.
6. An electronic product, comprising: motherboard card, a device for multiplexing motherboard cards, a board-to-board connector for connection according to any of claims 1 to 5 connected to said motherboard card.
7. A communication device, comprising: mainboard card, a device for mainboard card multiplexing, a board-to-board connector for connection according to any one of claims 1 to 5 connected with the mainboard card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120291819.3U CN214800046U (en) | 2021-01-29 | 2021-01-29 | Device for multiplexing mainboard boards, electronic product and communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120291819.3U CN214800046U (en) | 2021-01-29 | 2021-01-29 | Device for multiplexing mainboard boards, electronic product and communication equipment |
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| Publication Number | Publication Date |
|---|---|
| CN214800046U true CN214800046U (en) | 2021-11-19 |
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|---|---|---|---|
| CN202120291819.3U Active CN214800046U (en) | 2021-01-29 | 2021-01-29 | Device for multiplexing mainboard boards, electronic product and communication equipment |
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| Country | Link |
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| CN (1) | CN214800046U (en) |
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2021
- 2021-01-29 CN CN202120291819.3U patent/CN214800046U/en active Active
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