Remote network wake-up circuit and device

Abstract

The invention discloses a remote network wake-up circuit and device. The remote network wake-up circuit comprises a network card unit and a square wave generation unit. And the network card unit is used for outputting a low-level signal under the condition of receiving the remote network wake-up signal. The square wave generation unit is connected with the network card unit, and the square wave generation unit is used for generating a square wave signal and outputting the square wave signal to the startup control end of the CPU under the condition that the low-level signal is received.

Description

Technical Field

[0001] This application relates to the technical field of computer remote network wake-up, and particularly relates to a remote network wake-up circuit and device. Background Art

[0002] In the application scenario of remotely waking up a shutdown computer, after the network card receives a remote network wake-up signal, it will output a low-level signal to trigger the computer's power-on signal. The power-on signal is continuously pulled low by the network card control, that is, the level of the power-on signal changes from high to low. The computer's CPU executes the power-on process of the computer motherboard, and the network card will only pull up the computer power-on signal again after receiving the signal that the computer motherboard has successfully powered on.

[0003] However, for some domestic computers, the level of the CPU's power-on signal needs to change from high to low and then to high before the power-on process of the computer motherboard can be executed, and the remote network wake-up function of the network card cannot be applied. Summary of the Invention

[0004] This application aims to propose a remote network wake-up circuit and device that can solve the problem that the remote network wake-up function of the network card cannot be applied.

[0005] In a first aspect, an embodiment of this application provides a remote network wake-up circuit, including:

[0006] A network card unit, which is used to output a low-level signal when receiving a remote network wake-up signal;

[0007] A square wave generation unit, which is connected to the network card unit. The square wave generation unit is used to generate a square wave signal and output it to the power-on control end of the CPU when receiving the low-level signal.

[0008] According to some embodiments of this application, the square wave generation unit includes:

[0009] A first switch module, and the power-on control end is grounded through the first switch module;

[0010] A first control module, which is connected to the network card unit and the control end of the first switch module. The first control module is used to control the first switch module to conduct when receiving a low-level signal;

[0011] A second control module, which is connected to the first control module and the control end of the first switch module. The second control module is used to control the first switch module to disconnect after the first switch module conducts.

[0012] According to some embodiments of the present application, the first switch module includes:

[0013] A first MOS transistor, the drain of the first MOS transistor is connected to the power-on control terminal, the source of the first MOS transistor is grounded, and the gate of the first MOS transistor is connected to the first control module.

[0014] According to some embodiments of the present application, the first control module includes:

[0015] A second MOS transistor, the drain of the second MOS transistor is connected to the power supply terminal, the source of the second MOS transistor is grounded, the gate of the second MOS transistor is connected to the power supply terminal, and the gate of the second MOS transistor is connected to the network card unit;

[0016] A first capacitor, a first end of the first capacitor is respectively connected to the power supply terminal and the control terminal of the first switch module, and a second end of the first capacitor is grounded.

[0017] According to some embodiments of the present application, the second control module includes:

[0018] A third MOS transistor, the drain of the third MOS transistor is connected to the control terminal of the first switch module, and the source of the third MOS transistor is grounded;

[0019] A control sub-module, the control sub-module is connected to the first capacitor, the control sub-module is connected to the gate of the third MOS transistor, and the control sub-module is configured to control the third MOS transistor to conduct after the first switch module conducts.

[0020] According to some embodiments of the present application, the control sub-module includes:

[0021] A second capacitor, a first end of the second capacitor is respectively connected to the power supply terminal and the gate of the third MOS transistor, and a second end of the second capacitor is grounded;

[0022] A diode, an anode of the diode is connected to the first end of the second capacitor, and a cathode of the diode is connected to the first end of the first capacitor.

[0023] According to some embodiments of the present application, the control sub-module further includes:

[0024] A first resistor, a first end of the first resistor is connected to the power supply terminal, and a second end of the first resistor is connected to the first end of the second capacitor.

[0025] According to some embodiments of the present application, the first control module further includes:

[0026] A second resistor, a first end of the second resistor is connected to the power supply terminal;

[0027] A third resistor, a first end of the third resistor is respectively connected to a second end of the second resistor and a gate of the second MOS transistor, and a second end of the third resistor is grounded.

[0028] According to some embodiments of the present application, the first control module further includes:

[0029] A fourth resistor, a first end of the fourth resistor is connected to a first end of the first capacitor, and a second end of the fourth resistor is connected to a control end of the first switch module.

[0030] In a second aspect, an embodiment of the present application provides a remote network wake-up device, including the remote network wake-up circuit as described above.

[0031] In an embodiment of the present application, when the network card unit receives a remote network wake-up signal, it outputs a low-level signal. The square wave generation unit is configured to generate a square wave signal and output it to a power-on control end of the CPU when receiving the low-level signal, so that the level of the power-on control end of the CPU changes from high to low and then to high, thereby performing the power-on process of the computer motherboard and realizing remote network wake-up.

[0032] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0033] The following further describes the present application with reference to the drawings and embodiments, where:

[0034] Figure 1 is a circuit diagram of an embodiment of the remote network wake-up circuit provided by the present application. Detailed Embodiments

[0035] The following details the embodiments of the present application. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0036] In the description of the present application, it should be understood that for the orientation description, such as up, down, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0037] In the description of this application, "a plurality of" refers to more than two. If the first and second are described, it is only for the purpose of distinguishing technical features and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features or implicitly specifying the sequence of the indicated technical features.

[0038] In the description of this application, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in combination with the specific content of the technical solution.

[0039] The following refers to Figure 1 Describe a remote network wake-up circuit and device according to an embodiment of this application.

[0040] The embodiment of this application provides a remote network wake-up circuit, including:

[0041] A network card unit, which is used to output a low-level signal when receiving a remote network wake-up signal;

[0042] A square wave generation unit, which is connected to the network card unit. The square wave generation unit is used to generate a square wave signal and output it to the power-on control terminal of the CPU when receiving the low-level signal.

[0043] In the embodiment of this application, when the network card unit receives a remote network wake-up signal, it outputs a low-level signal. The square wave generation unit is used to generate a square wave signal and output it to the power-on control terminal of the CPU when receiving the low-level signal, so that the level of the power-on control terminal of the CPU changes from high to low and then to high, thereby executing the power-on process of the computer motherboard and realizing remote network wake-up.

[0044] In some embodiments of this application, the network card unit can adopt an 8111H network card.

[0045] In some embodiments of this application, the square wave generation unit can use a single-chip microcomputer to output a square wave signal or use a square wave generator circuit.

[0046] In some embodiments of this application, the square wave generation unit includes:

[0047] A first switch module, and the power-on control terminal is grounded through the first switch module;

[0048] A first control module, which is connected to the network card unit and the control terminal of the first switch module. The first control module is used to control the first switch module to conduct when receiving the low-level signal;

[0049] The second control module is connected to the first control module and the control end of the first switch module. The second control module is configured to control the first switch module to disconnect after the first switch module is turned on.

[0050] In this embodiment, the level of the power-on control end is in a high-level state. The first control module is configured to control the first switch module to turn on when receiving a low-level signal, so that the power-on control end is grounded through the first switch module, thereby pulling down the level of the power-on control end. After the first switch module is turned on, the second control module controls the first switch module to disconnect, so that the power-on control end returns to a high level, thereby realizing the output of a square wave signal.

[0051] In some embodiments of the present application, the first switch module may adopt switching elements such as MOS transistors and triodes.

[0052] In some embodiments of the present application, both the first control module and the second control module can adopt a drive circuit to control the on-off state of the first switch module. For example, when the first switch module is a MOS transistor, both the first control module and the second control module adopt a MOS transistor drive circuit to control the on-off of the first switch module.

[0053] In some embodiments of the present application, as Figure 1 shown, the first switch module includes:

[0054] The first MOS transistor Q1, the drain of the first MOS transistor Q1 is connected to the power-on control end, the source of the first MOS transistor Q1 is grounded, and the gate of the first MOS transistor Q1 is connected to the first control module.

[0055] In this embodiment, when the first control module receives a low-level signal, it outputs a first control signal to the gate of the first MOS transistor Q1, thereby controlling the first switch module to turn on.

[0056] In some embodiments of the present application, as Figure 1 shown, the first control module includes:

[0057] The second MOS transistor Q3, the drain of the second MOS transistor Q3 is connected to the power supply terminal, the source of the second MOS transistor Q3 is grounded, the gate of the second MOS transistor Q3 is connected to the power supply terminal, and the gate of the second MOS transistor Q3 is connected to the network card unit;

[0058] The first capacitor C2, the first end of the first capacitor C2 is respectively connected to the power supply terminal and the control end of the first switch module, and the second end of the first capacitor C2 is grounded.

[0059] In this embodiment, the gate of the second MOS transistor Q3 receives a low-level signal from the network card unit, and the second MOS transistor Q3 is turned off. The power supply terminal charges the first capacitor C2. After the first capacitor C2 is charged, a high level is output to the control terminal of the first switching module, that is, a high level is output to the gate of the first MOS transistor Q1, thereby turning on the first MOS transistor Q1.

[0060] In some embodiments of the present application, as Figure 1 shown, the second control module includes:

[0061] A third MOS transistor Q2, the drain of the third MOS transistor Q2 is connected to the control terminal of the first switching module, and the source of the third MOS transistor Q2 is grounded;

[0062] A control sub-module, the control sub-module is connected to the first capacitor C2, the control sub-module is connected to the gate of the third MOS transistor Q2, and the control sub-module is configured to control the third MOS transistor Q2 to turn on after the first switching module is turned on.

[0063] In this embodiment, after the first switching module is turned on, the control sub-module controls the third MOS transistor Q2 to turn on. The control terminal of the first switching module is grounded through the third MOS transistor Q2, thereby causing the first switching module to disconnect, that is, causing the first MOS transistor Q1 to turn off, and the power-on control terminal resumes a high level.

[0064] In some embodiments of the present application, as Figure 1 shown, the control sub-module includes:

[0065] A second capacitor C1, the first end of the second capacitor C1 is respectively connected to the power supply terminal and the gate of the third MOS transistor Q2, and the second end of the second capacitor C1 is grounded;

[0066] A diode D1, the anode of the diode D1 is connected to the first end of the second capacitor C1, and the cathode of the diode D1 is connected to the first end of the first capacitor C2.

[0067] In this embodiment, as the charging of the first capacitor C2 is completed, the path of the diode D1 becomes stable, and the power supply terminal starts to charge the second capacitor C1. After the second capacitor C1 is charged, a high level is output to the gate of the third MOS transistor Q2, causing the third MOS transistor Q2 to turn on.

[0068] In some embodiments of the present application, as Figure 1 shown, the control sub-module further includes:

[0069] A first resistor R4, the first end of the first resistor R4 is connected to the power supply terminal, and the second end of the first resistor R4 is connected to the first end of the second capacitor C1.

[0070] In this embodiment, the power supply terminal charges the second capacitor C1 through the first resistor R4.

[0071] In some embodiments of the present application, as Figure 1 shown, the first control module further includes:

[0072] A second resistor R5, the first end of the second resistor R5 is connected to the power supply terminal;

[0073] A third resistor R6, the first end of the third resistor R6 is respectively connected to the second end of the second resistor R5 and the gate of the second MOS transistor Q3, and the second end of the third resistor R6 is grounded.

[0074] In this embodiment, the power supply terminal divides the voltage through the second resistor R5 and the third resistor R6 to provide a high level to the gate of the second MOS transistor Q3, so that the second MOS transistor Q3 remains conducting before receiving the low-level signal of the network card unit.

[0075] In some embodiments of the present application, as Figure 1 shown, the first control module further includes:

[0076] A fourth resistor R2, the first end of the fourth resistor R2 is connected to the first end, and the second end of the fourth resistor R2 is connected to the control end of the first switch module.

[0077] In this embodiment, after the first capacitor C2 is charged, it outputs a high level to the control end of the first switch module through the fourth resistor R2 to control the first switch module to conduct.

[0078] In addition, an embodiment of the present application provides a remote network wake-up device, including the remote network wake-up circuit as described above.

[0079] The remote network wake-up device provided by the embodiment of the present application can implement each process implemented by the above circuit embodiment and achieve the same beneficial effects. To avoid repetition, it will not be described in detail here.

[0080] The above has described the embodiments of the present application in detail with reference to the drawings. However, the present application is not limited to the above embodiments, and various changes can be made without departing from the purpose of the present application within the knowledge scope of those of ordinary skill in the art.

Claims

1. A remote network wake-up circuit, characterized in that: include: A network card unit, wherein the network card unit is used to output a low-level signal when receiving a remote network wake-up signal; A square wave generating unit is connected to the network card unit and is used for generating a square wave signal and outputting it to a power-on control terminal of the CPU when receiving the low-level signal.

2. The remote network wake-up circuit according to claim 1, characterized in that: The square wave generating unit comprises: A first switch module, the power-on control terminal is grounded through the first switch module; A first control module, the first control module is connected to the network card unit, the first control module is connected to the control end of the first switch module, and the first control module is used to control the first switch module to be turned on when receiving a low-level signal; The second control module is connected to the first control module, and is connected to the control end of the first switch module. The second control module is used to control the first switch module to be disconnected after the first switch module is turned on.

3. The remote network wake-up circuit according to claim 2, characterized in that: The first switch module comprises: A first MOS transistor, wherein a drain of the first MOS transistor is connected to the power-on control terminal, a source of the first MOS transistor is grounded, and a gate of the first MOS transistor is connected to the first control module.

4. The remote network wake-up circuit according to claim 2, characterized in that: The first control module comprises: a second MOS transistor, wherein a drain of the second MOS transistor is connected to the power supply end, a source of the second MOS transistor is grounded, a gate of the second MOS transistor is connected to the power supply end, and a gate of the second MOS transistor is connected to the network card unit; A first capacitor, wherein a first end of the first capacitor is respectively connected to the power supply end and the control end of the first switch module, and a second end of the first capacitor is grounded.

5. The remote network wake-up circuit according to claim 4, characterized in that: The second control module includes: a third MOS tube, wherein a drain of the third MOS tube is connected to the control end of the first switch module, and a source of the third MOS tube is grounded; A control submodule, wherein the control submodule is connected to the first capacitor, the control submodule is connected to the gate of the third MOS tube, and the control submodule is used to control the third MOS tube to be turned on after the first switch module is turned on.

6. The remote network wake-up circuit according to claim 5, characterized in that: The control submodule comprises: A second capacitor, wherein a first end of the second capacitor is respectively connected to the power supply end and the gate of the third MOS tube, and a second end of the second capacitor is grounded; A diode, wherein an anode of the diode is connected to the first end of the second capacitor, and a cathode of the diode is connected to the first end of the first capacitor.

7. The remote network wake-up circuit according to claim 6, characterized in that: The control submodule also includes: A first resistor, wherein a first end of the first resistor is connected to the power supply end, and a second end of the first resistor is connected to a first end of the second capacitor.

8. The remote network wake-up circuit according to claim 4, characterized in that: The first control module also includes: a second resistor, wherein a first end of the second resistor is connected to the power supply end; A third resistor, wherein a first end of the third resistor is respectively connected to the second end of the second resistor and the gate of the second MOS tube, and a second end of the third resistor is grounded.

9. The remote network wake-up circuit according to claim 4, characterized in that: The first control module also includes: A fourth resistor, wherein a first end of the fourth resistor is connected to the first end of the first capacitor, and a second end of the fourth resistor is connected to the control end of the first switch module.

10. A remote network wake-up device, characterized in that: The invention comprises a remote network wake-up circuit as claimed in any one of claims 1 to 9.

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