CN208888803U - Prevent the wireless network card of computer end from falling the circuit of card - Google Patents
Prevent the wireless network card of computer end from falling the circuit of card Download PDFInfo
- Publication number
- CN208888803U CN208888803U CN201821338480.2U CN201821338480U CN208888803U CN 208888803 U CN208888803 U CN 208888803U CN 201821338480 U CN201821338480 U CN 201821338480U CN 208888803 U CN208888803 U CN 208888803U
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- capacitor
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- electrically connected
- circuit
- wireless network
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Abstract
The utility model discloses the circuit that a kind of wireless network card for preventing computer end falls card, including central controller, delay unit, filter unit and WIFI mould group, delay unit includes second resistance R2 and third capacitor C3, the first end of second resistance R2 is electrically connected with the first pin of central controller, the second end of second resistance R2 is electrically connected with the first end of third capacitor C3, the second end of third capacitor C3 is grounded, and the second end of second resistance R2 is also electrically connected with a pin of WIFI mould group.The utility model increases a RC delay circuit between the resetting pin and CPU of network interface card, circuit connection is simple, cost reduces, different time delays are generated from the size of capacitor C by resistance R in adjusting RC delay circuit, so that the time of resetting pin pull-up delays the clock signal arrival time in CPU, finally, the problem of wireless network card falls card or nonrecognition can be prevented.
Description
Technical field
The utility model relates to wireless network card fields, and the electricity of card is fallen more particularly to a kind of wireless network card for preventing computer end
Road.
Background technique
Currently, one is Mini-PCI, another kind is there are two types of wireless network card interface types built in notebook on the market
PCI-E.But either PCIE or mini-PCI interface network interface card, the timing from CPU must first directly affect the identification of network interface card.Its
In, influence the timing of maximum preamble section Reset and Clock Signal pin when being.Currently, PC mainboard on the market in wiring or
When person designs, communicating for the two pins with CPU is all using " Straight pull design ", and so-called " Straight pull design " is directly to use
Conducting wire vertical pulling is to the corresponding pin of CPU.Such design benefit be exactly it is simple and inexpensive, disadvantage is also evident from, PCIE or
The timing source of mini-PCI directly relies on the ability of CPU, once the timing that CPU is provided has exception, network interface card part is completely incompetent
For power, directly contributes wireless network card nonrecognition or fall card.
Utility model content
The purpose of the utility model is to overcome shortcomings in the prior art, provide a kind of wireless network for preventing computer end
Card falls the circuit of card, increases a RC delay circuit between the resetting pin and CPU of network interface card, and circuit connection is simple, and cost reduces,
Different time delays are generated from the size of capacitor C by resistance R in adjusting RC delay circuit, so that resetting pin pull-up
Time delays the clock signal arrival time in CPU, finally, can prevent wireless network card and fall asking for card or nonrecognition
Topic.
The purpose of this utility model is achieved through the following technical solutions:
A kind of wireless network card preventing computer end falls the circuit of card, comprising: central controller, delay unit, filter unit
And WIFI mould group,
First pin of the central controller is electrically connected with the first end of the filter unit, and the of the filter unit
Two ends ground connection, the first pin of the central controller are also electrically connected with the input terminal of the delay unit, the delay unit
Output end be electrically connected with a pin of the WIFI mould group；
The delay unit includes second resistance R2 and third capacitor C3, the first end of the second resistance R2 and it is described in
The first pin electrical connection of controller is entreated, the second end of the second resistance R2 and the first end of the third capacitor C3 are electrically connected
It connects, the second end ground connection of the third capacitor C3, a pin of the second end of the second resistance R2 also with the WIFI mould group
Electrical connection.
In one of the embodiments, the filter unit include the 4th capacitor C4, one end of the 4th capacitor C4 with
First pin of the central controller is electrically connected, the other end ground connection of the 4th capacitor C4.
It in one of the embodiments, further include first resistor R1, the first end and VCC feeder ear of the first resistor R1
Electrical connection, the second end of the first resistor R1 are electrically connected with the second pin of the central controller.
It in one of the embodiments, further include 3rd resistor R3, the first end of the 3rd resistor R3 and the WIFI
Another pin of mould group is electrically connected, the second end ground connection of the 3rd resistor R3.
It in one of the embodiments, further include first capacitor C1, the first end of the first capacitor C1 and the center
The third pin of controller is electrically connected, and the second end of the first capacitor C1 is electrically connected with the WIFI mould group.
Further include in one of the embodiments, the second capacitor C2, the second capacitor C2 first end and the center
The third pin of controller is electrically connected, and the second end of the second capacitor C2 is electrically connected with the WIFI mould group.
The resistance value of the second resistance R2 is 1K Ω~10K Ω in one of the embodiments, the third capacitor C3's
Capacitance is 0.5uF~1.5uF.
The capacitance of the third capacitor C3 is 1uF in one of the embodiments,.
The central controller also passes through PCI-E interface or Mini-PCI interface and institute in one of the embodiments,
State the electrical connection of WIFI mould group.
The central controller is the CPU of computer in one of the embodiments,.
The utility model compared with the prior art the advantages of and have the beneficial effect that:
The utility model is the circuit that a kind of wireless network card for preventing computer end falls card, by the way that delay unit, adjustment is arranged
The delay for realizing timing, effectively makes up the deficiency of CPU processing capacity, to solve the problems, such as lower cost solution timing, effectively
Reduce cost.Increase a RC delay circuit between the resetting pin and CPU of network interface card, circuit connection is simple, and cost reduces, and leads to
Overregulate in RC delay circuit resistance R and generate different time delays from the size of capacitor C so that resetting pin pull-up when
Between clock signal arrival time for delaying in CPU finally can prevent the problem of wireless network card falls card or nonrecognition.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 be one embodiment of the utility model prevent the wireless network card of computer end fall card circuit circuit diagram.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The better embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that making practical new to this
The disclosure of type understands more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet
Include any and all combinations of one or more related listed items.
Referring to Fig. 1, a kind of wireless network card for preventing computer end falls the circuit of card, comprising: central controller 100, delay
Unit 200, filter unit 300 and WIFI mould group 400.It should be noted that the central controller 100 and the WIFI mould group
400 electrical connections, and the central controller also passes through PCI-E interface or Mini-PCI interface and is electrically connected with the WIFI mould group
It connects.The central controller is the CPU of computer.The delay unit 200 be used for so that Reset foot pull-up time delay in
The clock signal arrival time of CPU, while the thinking is applied equally to Clock Signal pin and the delay of other foot timing；It is described
Filter unit 300 filters out the ripple occurred in route.
It should be noted that the central controller is the CPU of host computer, INTEL Corp., model I7 can be
8700 CPU, certainly, other can satisfy the technical solution of the application and be that those skilled in the art being capable of unrestricted choice
CPU, within the scope of protection of this application.It should also be noted that, the CPU is the conventional prior art often sold on the market
CPU, the application only requires that the protection CPU and other circuit/units/modules structural relations, connection relationship and position are closed
System, particularly with regard to the CPU and other circuits/units/modules cooperation working principle, refer to the prior art realizes, wherein can
It can existing not be the object of the requires of the utility model protection containing methodical technical characteristic, not repeat herein.
It should also be noted that, contain a WIFI chip in the WIFI mould group, also, the WIFI chip can be with
Use MTK company model for the WIFI chip of MT7662.Certainly, other technical solutions that can satisfy the application and be ability
Field technique personnel are capable of the WIFI chip of unrestricted choice, within the scope of protection of this application.It should also be noted that, described
WIFI chip is the WIFI chip for the conventional prior art often sold on the market, the application only require the protection WIFI chip with
Other circuit/units/modules structural relation, connection relationship and positional relationships, particularly with regard to the WIFI chip and other electricity
Refer to the prior art realizes for the working principle of road/units/modules cooperation, wherein that may be present contain methodical technical characteristic
It is not the object of the requires of the utility model protection, is not repeating herein.
Specifically, the first pin of the central controller is electrically connected with the first end of the filter unit, the filtering
The second end of unit is grounded, and the first pin of the central controller is also electrically connected with the input terminal of the delay unit, described
The output end of delay unit is electrically connected with a pin of the WIFI mould group.It should be noted that the of the central controller
One pin is the Reset foot of central controller.
Referring to Fig. 1, the delay unit includes second resistance R2 and third capacitor C3, the first of the second resistance R2
End is electrically connected with the first pin of the central controller, and the of the second end of the second resistance R2 and the third capacitor C3
One end electrical connection, the third capacitor C3 second end ground connection, the second end of the second resistance R2 also with the WIFI mould group
A pin electrical connection.
In the present embodiment, the resistance value of the second resistance R2 is 1K Ω~10K Ω, the capacitance of the third capacitor C3
For 0.5uF~1.5uF.Preferably, the capacitance of the third capacitor C3 is 1uF.In this way, by wireless network card and computer end
Reset foot between increase RC delay, pass through the size for adjusting second resistance R2 and third capacitor C3, realize Reset foot
Timing delay.Work as R2=1K, when C3=1uF, Reset timing is delayed within 10ms, work as R2=10K, when C3=1uF, Reset
10~20ms of timing delay.
During being delayed, the ripple of Reset all can be higher, for this purpose, in order to reduce the ripple of Reset, in turn
Improve delay validity, for example, the filter unit include the 4th capacitor C4, one end of the 4th capacitor C4 and it is described in
Entreat the first pin electrical connection of controller, the other end ground connection of the 4th capacitor C4.In this way, by increasing ground capacity C4,
The ripple interference for reducing Reset, can reduce the probability that wireless network card falls card to a certain extent.It is preferred that the 4th
Capacitor C4=22uF.
It should also be noted that, when the CPU of the computer end timing for starting the Reset and clock signal provided just meets the requirements
When, increasing a RC circuit can prevent to fall card and nonrecognition caused by entering other modes.Such as: windows10 system etc.
The sleep of other operating systems, standby isotype；When the CPU of computer end starts the timing of the Reset provided and clock signal just
When undesirable, time for being delayed can be needed by adjusting RC circuit to calculate, thus avoid network interface card fall card or
Nonrecognition.
The utility model can realize the time delay of timing by hardware adjustment, effectively make up the deficiency of CPU processing capacity,
To solve the problems, such as lower cost solution timing, cost is effectively reduced, and then derives a kind of new PC scheme, while the think of
Road is also applied for other wireless network card application fields, such as smart home field and television field etc..It furthermore can also be effectively pre-
The wireless network card disconnection preventing the interference CPU output timing due to other factors and occurring.
It should be noted that circuit further includes first resistor R1, first end and VCC the feeder ear electricity of the first resistor R1
Connection, the second end of the first resistor R1 are electrically connected with the second pin of the central controller.Wherein, the center control
Second pin of device is PCIE_CLK_REQ#.
It should be noted that circuit further includes 3rd resistor R3, the first end of the 3rd resistor R3 and the WIFI mould
Another pin electrical connection of group, the second end ground connection of the 3rd resistor R3.
It should be noted that circuit further includes first capacitor C1, the first end of the first capacitor C1 and the center are controlled
The third pin of device processed is electrically connected, and the second end of the first capacitor C1 is electrically connected with the WIFI mould group.Wherein, the center
The third pin of controller is PCIE_TX_N pin.
It should be noted that circuit further includes the second capacitor C2, the first end of the second capacitor C2 and the center are controlled
The third pin of device processed is electrically connected, and the second end of the second capacitor C2 is electrically connected with the WIFI mould group.Wherein, the center
4th pin of controller is PCIE_TX_N pin PCIE_TX_P pin
To solve the problems, such as that wireless network card falls card, the utility model can by PCIE_RX_N pin to PCI-E and
PCIE_RX_P pin, PCIE_TX_N pin and PCIE_TX_P pin, PCIE_CLK_N pin and PCIE_CLK_P pin carry out
Differential impedance control does the processing of 100 ohmages in wiring this problem is effectively relieved, so as to efficiently solve net
Card falls the problem of card.Specifically, it is provided with PCIE_RX_N pin, PCIE_RX_P pin on the central controller 100,
PCIE_TX_N pin, PCIE_TX_P pin, PCIE_CLK_N pin and PCIE_CLK_P pin, respectively with the WIFI mould
PETNO pin, PETPO pin, HSIN pin, HSIP pin, REFCLK- pin and REFCLK+ pin in group 400 are electrically connected
It connects.
Also, the PCI-E_CLK_REQ# pin and PCI-E_RST pin on the central controller 100 respectively with it is described
CLKREON# pin and the electrical connection of PERSTN pin in WIFI mould group 400.
The utility model compared with the prior art the advantages of and have the beneficial effect that:
The utility model is the circuit that a kind of wireless network card for preventing computer end falls card, by the way that delay unit, adjustment is arranged
The delay for realizing timing, effectively makes up the deficiency of CPU processing capacity, to solve the problems, such as lower cost solution timing, effectively
Reduce cost.Increase a RC delay circuit between the resetting pin and CPU of network interface card, circuit connection is simple, and cost reduces, and leads to
Overregulate in RC delay circuit resistance R and generate different time delays from the size of capacitor C so that resetting pin pull-up when
Between clock signal arrival time for delaying in CPU finally can prevent the problem of wireless network card falls card or nonrecognition.
Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed
Carefully, but it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the general of this field
For logical technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these are all
Belong to the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. the circuit that a kind of wireless network card for preventing computer end falls card characterized by comprising central controller, delay unit,
Filter unit and WIFI mould group,
First pin of the central controller is electrically connected with the first end of the filter unit, the second end of the filter unit
Ground connection, the first pin of the central controller is also electrically connected with the input terminal of the delay unit, the delay unit it is defeated
Outlet is electrically connected with a pin of the WIFI mould group；
The delay unit includes second resistance R2 and third capacitor C3, and the first end of the second resistance R2 and the center are controlled
First pin of device processed is electrically connected, and the second end of the second resistance R2 is electrically connected with the first end of the third capacitor C3, institute
The second end ground connection of third capacitor C3 is stated, a pin of the second end of the second resistance R2 also with the WIFI mould group is electrically connected
It connects.
2. the circuit that the wireless network card according to claim 1 for preventing computer end falls card, which is characterized in that the filtering is single
Member includes the 4th capacitor C4, and one end of the 4th capacitor C4 is electrically connected with the first pin of the central controller, and described the
The other end of four capacitor C4 is grounded.
3. the circuit that the wireless network card according to claim 1 for preventing computer end falls card, which is characterized in that further include first
Resistance R1, the first end of the first resistor R1 are electrically connected with VCC feeder ear, the second end of the first resistor R1 and it is described in
Entreat the second pin electrical connection of controller.
4. the circuit that the wireless network card according to claim 1 for preventing computer end falls card, which is characterized in that further include third
Resistance R3, the first end of the 3rd resistor R3 are electrically connected with another pin of the WIFI mould group, the 3rd resistor R3's
Second end ground connection.
5. the circuit that the wireless network card according to claim 1 for preventing computer end falls card, which is characterized in that further include first
Capacitor C1, the first end of the first capacitor C1 are electrically connected with the third pin of the central controller, the first capacitor C1
Second end be electrically connected with the WIFI mould group.
6. the circuit that the wireless network card according to claim 1 for preventing computer end falls card, which is characterized in that further include second
Capacitor C2, the first end of the second capacitor C2 are electrically connected with the third pin of the central controller, the second capacitor C2
Second end be electrically connected with the WIFI mould group.
7. the circuit that the wireless network card according to claim 1 for preventing computer end falls card, which is characterized in that second electricity
The resistance value for hindering R2 is 1K Ω~10K Ω, and the capacitance of the third capacitor C3 is 0.5uF~1.5uF.
8. the circuit that the wireless network card according to claim 7 for preventing computer end falls card, which is characterized in that the third electricity
The capacitance for holding C3 is 1uF.
9. the circuit that the wireless network card according to claim 1 for preventing computer end falls card, which is characterized in that the center control
Device processed also passes through PCI-E interface or Mini-PCI interface and is electrically connected with the WIFI mould group.
10. the circuit that the wireless network card according to claim 1 for preventing computer end falls card, which is characterized in that the center
Controller is the CPU of computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821338480.2U CN208888803U (en) | 2018-08-17 | 2018-08-17 | Prevent the wireless network card of computer end from falling the circuit of card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821338480.2U CN208888803U (en) | 2018-08-17 | 2018-08-17 | Prevent the wireless network card of computer end from falling the circuit of card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208888803U true CN208888803U (en) | 2019-05-21 |
Family
ID=66509223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821338480.2U Expired - Fee Related CN208888803U (en) | 2018-08-17 | 2018-08-17 | Prevent the wireless network card of computer end from falling the circuit of card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208888803U (en) |
-
2018
- 2018-08-17 CN CN201821338480.2U patent/CN208888803U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190521 Termination date: 20210817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |