Router 5G module circuit and router

Abstract

The utility model provides a router 5G module circuit and a router, and relates to the field of routers. The router 5G module circuit comprises a power supply circuit, an interface circuit, an SIM card seat circuit and a plugging detection module. The input end of the power supply circuit is connected with an external power supply, the output end of the power supply circuit is connected with the interface circuit, the interface circuit is respectively connected with the output ends of the SIM card seat circuit and the plugging detection module, and the input end of the plugging detection module is connected with the SIM card seat circuit. The power supply circuit converts voltage provided by an external power supply into voltage required by the interface circuit; when the SIM card is inserted into the card seat, the plugging detection module transmits a control signal for indicating to start the 5G module to the interface circuit; when no SIM card is inserted, a control signal for indicating to close the 5G module is transmitted; the interface circuit controls the on-off of the 5G module according to the control signal, and converts the 5G signal transmitted by the SIM card seat circuit into a WIFI signal, thereby reducing the unexpected starting of the router.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of routers, in particular to a router 5G module circuit and a router. BACKGROUND

[0002] A router is also called a gateway device, which is suitable for connecting multiple logically separated networks, and the logical network represents a single network or a subnetwork. When data is transmitted from one subnetwork to another subnetwork, the routing function of the router can be used to complete the transmission. Therefore, the router has the functions of judging network addresses and selecting IP (Internet Protocol) paths, and it can establish flexible connections in a multi-network interconnection environment, and can connect various subnetworks with completely different data packets and medium access methods. The router only accepts information from the source station or other routers, and it is a kind of interconnection device at the network layer. The router is widely used in the technical fields of electronic communication and network communication due to its advantages of rapid signal transmission, low cost and small size.

[0003] A 5G plug-in router, also known as a 5G Customer Premises Equipment (CPE), is a device that converts 5G signals into WIFI signals, allowing users to connect devices at home or in the office through WIFI. This kind of router usually has a built-in SIM (Subscriber Identity Module) card slot, which can be inserted with a 5G SIM card provided by the operator to realize high-speed and low-latency 5G network connection.

[0004] However, the existing 5G plug-in router has the problem of starting in unexpected situations. INVENTION CONTENTS

[0005] The present application provides a router 5G module circuit and a router to solve the problem of starting in unexpected situations of the existing 5G plug-in router.

[0006] In one aspect, the present application provides a router 5G module circuit, which comprises a power supply circuit, an interface circuit, a SIM card seat circuit and a plug-in detection module. The input end of the power supply circuit is used to connect with an external power supply, and the output end of the power supply circuit is connected with the interface circuit. The interface circuit is also connected with the output end of the SIM card seat circuit and the plug-in detection module respectively. The input end of the plug-in detection module is connected with the SIM card seat circuit.

[0007] The power supply circuit is used to convert the voltage provided by the external power supply into the voltage required by the interface circuit, and output to the interface circuit to supply power for the interface circuit.

[0008] The SIM card seat circuit is configured to obtain a 5G signal of a SIM card inserted in a built-in card seat of the router and transmit the 5G signal to the interface circuit.

[0009] The plug-in detection module is configured to detect whether a SIM card is inserted in the card seat and transmit a control signal indicating to turn on the 5G module in the interface circuit to the interface circuit when a SIM card is inserted in the card seat, and transmit a control signal indicating to turn off the 5G module to the interface circuit when no SIM card is inserted in the card seat.

[0010] The interface circuit is configured to control the 5G module to be turned on or turned off according to the signal transmitted by the plug-in detection module, and convert the 5G signal transmitted by the SIM card seat circuit into a WIFI signal and send the WIFI signal through the 5G module.

[0011] In the embodiments of the present application, the SIM card seat circuit includes a first SIM card seat circuit and a second SIM card seat circuit.

[0012] The reset pin, the clock pin, the power pin and the CD pin of the first SIM card seat circuit are respectively connected to the reset pin, the clock pin, the power pin and the selection pin of the interface circuit, the power pin of the first SIM card seat circuit includes a first power pin and a second power pin, the positive power pin and the reset pin of the second SIM card seat circuit are respectively connected to the positive power pin and the reset pin of the interface circuit, and the positive power pin of the second SIM card seat circuit includes a first positive power pin, a second positive power pin and a third positive power pin.

[0013] The first SIM card seat circuit is configured to obtain a first 5G signal of a SIM card inserted in the first SIM card seat and transmit the first 5G signal to the interface circuit.

[0014] The second SIM card seat circuit is configured to obtain a second 5G signal of a SIM card built in the second SIM card seat and transmit the second 5G signal to the interface circuit.

[0015] In the embodiments of the present application, the first SIM card seat circuit includes a first SIM card seat chip, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor and a sixth capacitor.

[0016] The ground pin of the first SIM card seat chip is grounded, the input and output pin of the first SIM card seat chip is connected to one end of the second resistor and the third resistor, the other end of the third resistor is used as the first power pin of the first SIM card seat circuit, the connection end of the second resistor and the third resistor is further connected to one end of the first capacitor, and the other end of the first capacitor is grounded.

[0017] The CD pin of the first SIM card seat chip is used as the CD pin of the first SIM card seat circuit.

[0018] The power positive pole pin of the first SIM card seat chip is used as the second power pin of the first SIM card seat circuit, and is grounded through the fourth capacitor, the fifth capacitor and the sixth capacitor respectively;

[0019] The reset pin of the first SIM card seat chip is connected with one end of the fifth resistor, the other end of the fifth resistor is used as the reset pin of the first SIM card seat circuit, and the other end of the fifth resistor is grounded through the third capacitor;

[0020] The clock pin of the first SIM card seat chip is connected with one end of the fourth resistor, the other end of the fourth resistor is used as the clock pin of the first SIM card seat circuit, and the other end of the fourth resistor is grounded through the second capacitor.

[0021] In the embodiment of the application, the second SIM card seat circuit comprises a second SIM card seat first chip, a second SIM card seat second chip, a sixth resistor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor and a twelfth capacitor;

[0022] The ground pins of the second SIM card seat first chip and the second SIM card seat second chip are grounded; the input and output pins of the second SIM card seat first chip and the second SIM card seat second chip are connected, one end of the sixth resistor is connected with the connection end of the input and output pins of the second SIM card seat first chip and the second SIM card seat second chip, the other end of the sixth resistor is connected with one end of the seventh capacitor, the other end of the seventh capacitor is grounded, and the other end of the sixth resistor is used as the first positive power pin of the second SIM card seat circuit;

[0023] The power positive pin of the second SIM card seat first chip is used as the second positive power pin of the second SIM card seat circuit, and is grounded through the eighth capacitor and the ninth capacitor respectively;

[0024] The power positive pin of the second SIM card seat second chip is used as the third positive power pin of the second SIM card seat circuit, and is grounded through the twelfth capacitor;

[0025] The reset pins of the second SIM card seat first chip and the second SIM card seat second chip are connected, the connection end of the reset pins of the second SIM card seat first chip and the second SIM card seat second chip is used as the reset pin of the second SIM card seat circuit, and is grounded through the eleventh capacitor;

[0026] The clock pins of the second SIM card seat first chip and the second SIM card seat second chip are connected, and the connection end of the clock pins of the second SIM card seat first chip and the second SIM card seat second chip is further connected with one end of the tenth capacitor, and the other end of the tenth capacitor is grounded.

[0027] In the embodiment of the present application, the first SIM card seat circuit of the first SIM card seat is a self-ejecting SIM card seat.

[0028] In the embodiment of the present application, the interface circuit includes a 5G module reset circuit for resetting the 5G module, and a collector pin and a power pin of the 5G module reset circuit correspondingly connect a 5G reset pin and a power supply circuit of the interface circuit;

[0029] And / or, the router 5G module circuit further includes an interface protection circuit for protecting the interface circuit, and a CD pin, a clock pin, a data output pin, a power positive pin and a reset pin of the interface protection circuit correspondingly connect a selection pin, a clock pin, a data output pin, a power pin and a reset pin of the interface circuit, and also correspondingly connect a CD pin, a clock pin, a first power pin, a second power pin and a reset pin of the first SIM card seat circuit.

[0030] In the embodiment of the present application, the 5G module reset circuit includes a triode, a seventh resistor, an eighth resistor, a ninth resistor and a thirteenth capacitor;

[0031] The emitter of the triode is grounded, the base of the triode is connected with the emitter through the eighth resistor, and the base of the triode is connected with the ninth resistor; the collector of the triode is connected with one end of the seventh resistor as the collector pin of the 5G module reset circuit, the other end of the seventh resistor is connected with the power pin of the 5G module reset circuit, and the other end of the seventh resistor is also grounded through the thirteenth capacitor.

[0032] In the embodiment of the present application, the interface protection circuit includes a transient voltage suppression diode;

[0033] The ground pin of the transient voltage suppression diode is grounded; the power positive pin of the transient voltage suppression diode is connected with the power positive pin of the interface protection circuit; the reset pin of the transient voltage suppression diode is connected with the reset pin of the interface protection circuit; the clock pin of the transient voltage suppression diode is connected with the clock pin of the interface protection circuit; the data output pin of the transient voltage suppression diode is connected with the data output pin of the interface protection circuit; and the CD pin of the transient voltage suppression diode is connected with the CD pin of the interface protection circuit.

[0034] In the embodiment of the present application, the interface circuit is set to an up pull configuration.

[0035] In the embodiment of the present application, the power supply circuit comprises a voltage stabilizing chip, a fourteenth capacitor, a fifteenth capacitor, a sixteenth capacitor, a seventeenth capacitor, an eighteenth capacitor, a nineteenth capacitor, a twentieth capacitor, a twenty-first capacitor, a twenty-second capacitor, a twenty-third capacitor, a twenty-fourth capacitor, a twenty-fifth capacitor, a twenty-sixth capacitor, a twenty-seventh capacitor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor and an inductor;

[0036] The ground pin of the voltage stabilizing chip is grounded; the enable pin of the voltage stabilizing chip is connected to the main input pin and the auxiliary input pin of the voltage stabilizing chip through the eleventh resistor, and the enable pin of the voltage stabilizing chip is also connected to one end of the twenty-fifth capacitor, and the other end of the twenty-fifth capacitor is grounded;

[0037] The connection ends of the main input pin and the auxiliary input pin of the voltage stabilizing chip are connected to an external power supply, and the connection ends of the main input pin and the auxiliary input pin of the voltage stabilizing chip are respectively grounded through the fourteenth capacitor, the sixteenth capacitor and the seventeenth capacitor;

[0038] The bootstrap pin of the voltage stabilizing chip is connected to one end of the fifteenth capacitor, and the other end of the fifteenth capacitor is connected to the inductor switching node pin of the voltage stabilizing chip; the inductor switching node pin of the voltage stabilizing chip is connected to the feedback pin of the voltage stabilizing chip in sequence through the inductor, the twelfth resistor and the thirteenth resistor, and the twelfth resistor and the twentieth capacitor are connected in parallel;

[0039] The feedback pin of the voltage stabilizing chip is grounded in sequence through the thirteenth resistor and the fourteenth resistor; the connection ends of the inductor and the twelfth resistor are connected to the interface circuit through the tenth resistor, and are respectively grounded through the eighteenth capacitor, the nineteenth capacitor, the twenty-fourth capacitor, the twenty-first capacitor and the twenty-second capacitor, and the twenty-second capacitor and the twenty-third capacitor are connected in parallel;

[0040] The soft start pin of the voltage stabilizing chip is grounded through the twenty-seventh capacitor; and the positive electrode pin of the voltage stabilizing chip is grounded through the twenty-sixth capacitor.

[0041] On the other hand, the present application provides a router comprising the router 5G module circuit provided in the first aspect.

[0042] The router 5G module circuit and the router provided by the embodiment of the application are characterized in that the power supply circuit, the interface circuit, the SIM card seat circuit and the plug-in detection module are arranged, the input end of the power supply circuit is used for being connected with an external power supply, the output end of the power supply circuit is connected with the interface circuit, the interface circuit is further connected with the output end of the SIM card seat circuit and the plug-in detection module respectively, and the input end of the plug-in detection module is connected with the SIM card seat circuit. BRIEF DESCRIPTION OF DRAWINGS

[0043] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the principles of the application.

[0044] Figure 1 A structural schematic diagram of a router 5G module circuit provided by the embodiment of the application is shown in the figure;

[0045] Figure 2 A structural schematic diagram of a plug-in detection module provided by the embodiment of the application is shown in the figure;

[0046] Figure 3 A structural schematic diagram of a SIM card seat circuit provided by the embodiment of the application is shown in the figure;

[0047] Figure 4 A structural schematic diagram of a first SIM card seat circuit provided by the embodiment of the application is shown in the figure;

[0048] Figure 5 A structural schematic diagram of a second SIM card seat circuit provided by the embodiment of the application is shown in the figure;

[0049] Figure 6 A structural schematic diagram of a 5G module reset circuit provided by the embodiment of the application is shown in the figure;

[0050] Figure 7 A structure diagram of an interface protection circuit provided in an embodiment of the present application is shown in FIG. 1.

[0051] Figure 8 A structure diagram of a power supply circuit provided in an embodiment of the present application is shown in FIG. 2.

[0052] Figure 9 A structure diagram of a SIM card reading circuit provided in an embodiment of the present application is shown in FIG. 3. Figure 1

[0053] Figure 10 A structure diagram of a SIM card reading circuit provided in an embodiment of the present application is shown in FIG. 4. Figure 2

[0054] Figure 11 A structure diagram of an interface circuit provided in an embodiment of the present application is shown in FIG. 5.

[0055] Reference signs:

[0056] 1 - power supply circuit; 2 - interface circuit; 3 - SIM card seat circuit; 31 - first SIM card seat circuit; 32 - second SIM card seat circuit; 4 - plug detection module.

[0057] The specific embodiments of the present application have been shown and described in the above-described drawings, and will be described in more detail hereinafter. These drawings and the written description are not intended to restrict the scope of the present application concept in any way, but to illustrate the present application concept to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0058] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The same or similar components are denoted by the same or similar reference numerals throughout the drawings and the written description, unless otherwise specified. The embodiments described in the following exemplary embodiments are not representative of all embodiments consistent with the present application. Rather, they are merely examples of apparatuses consistent with some aspects of the present application, as detailed in the appended claims.

[0059] In the embodiments of the present application, the terms "first" and "second" are used only for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0060] ​​In addition, in the embodiments of the present application, the orientation terms such as "upper", "lower", "left" and "right" are defined relative to the orientation in which the components in the drawings are placed, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation in which the components in the drawings are placed.

[0061] In the embodiments of the present application, unless specifically defined and limited otherwise, the term "connection" should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through an intermediate medium.

[0062] In the embodiments of the present application, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or further includes elements inherent to such a process, article or device. Without more limitations, the element defined by the sentence "including a…" does not exclude the presence of other identical elements in the process, article or device including the element.

[0063] In the embodiments of the present application, the word "exemplary" or "for example" is used to mean serving as an example, instance or illustration. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or having more advantages than other embodiments or design solutions. Rather, the word "exemplary" or "for example" is used in the sense of "by way of example", to convey a particular meaning in a concrete manner.

[0064] In the prior art, the 5G plug-in card router comprises a router 5G module circuit, which further comprises a power supply circuit, an interface circuit and a SIM card seat circuit. The input end of the power supply circuit is connected with an external power supply, and the output end is connected with the interface circuit. The SIM card seat circuit is connected with the interface circuit.

[0065] The power supply circuit is used to convert the voltage of the external power supply into the voltage required by the interface circuit and output to the interface circuit to supply power for the 5G module in the interface circuit. The 5G module starts under the condition of power supply.

[0066] The SIM card seat circuit is used to read the 5G signal of the inserted SIM card.

[0067] The interface circuit is used to convert the signal transmitted by the SIM card seat circuit into a WIFI signal, and the 5G module in the interface circuit sends out the WIFI signal.

[0068] In the above-mentioned router 5G module circuit, whether the SIM card seat circuit reads the inserted SIM card or not, the 5G module will start under power supply, so when the router 5G module circuit is accidentally powered on and no SIM card is inserted, the unexpected start of the 5G module will cause resource consumption and potential safety hazards.

[0069] The router 5G module circuit and the router provided by the application detect whether a SIM card is inserted in the card seat through the plug-in detection module, if no SIM card is inserted in the card seat, the 5G module is turned off, if a SIM card is inserted in the card seat, the 5G module is turned on, which avoids the start of the 5G module due to accidental power-on or other unexpected situations, and reduces unnecessary resource consumption and potential safety hazards.

[0070] The technical solutions of the application and how the technical solutions of the application solve the above-mentioned technical problems will be described in detail in specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described in detail in some embodiments. The embodiments of the application will be described below with reference to the drawings.

[0071] Referring to Figure 1 The embodiments of the application provide a structural diagram of a router 5G module circuit, wherein the router 5G module circuit provided by the embodiments of the application can include a power supply circuit 1, an interface circuit 2, a SIM card seat circuit 3 and a plug-in detection module 4.

[0072] The input end of the power supply circuit 1 is used to be connected with an external power supply, the output end of the power supply circuit 1 is connected with the interface circuit 2, the interface circuit 2 is further connected with the SIM card seat circuit 3 and the output end of the plug-in detection module 4 respectively, and the input end of the plug-in detection module 4 is connected with the SIM card seat circuit 3.

[0073] The power supply circuit 1 can be used to convert the voltage provided by the external power supply into the voltage required by the interface circuit 2 and output to the interface circuit 2 to supply power for the interface circuit 2, and then provide the working voltage required by the entire circuit.

[0074] The SIM card seat circuit 3 can be used to obtain the 5G signal of the SIM card inserted in the built-in card seat of the router and transmit the 5G signal to the interface circuit 2. The built-in card seat of the router can be a self-ejecting SIM card seat, a plug-in SIM card seat, a sliding SIM card seat, etc.

[0075] The plug-in detection module 4 can be used to detect whether a SIM card is inserted in the card seat, and when a SIM card is inserted in the card seat, transmit a control signal indicating to turn on the 5G module in the interface circuit to the interface circuit 2; when no SIM card is inserted in the card seat, transmit a control signal indicating to turn off the 5G module to the interface circuit 2.

[0076] The interface circuit 2 can be used to control the opening or closing of the 5G module according to the signal transmitted by the plug detection module 4; and convert the 5G signal transmitted by the SIM card seat circuit 3 into a WIFI signal, and send the WIFI signal through the 5G module; the interface circuit 2 can be an M.2 interface circuit; the interface circuit 2 can be set to an up pull configuration, see Figure 11 .

[0077] The plug detection module is arranged between the interface circuit and the SIM card seat circuit, so that whether the SIM card is inserted in the card seat is detected, if it is detected that the SIM card is not inserted in the card seat, the 5G module is closed, and if it is detected that the SIM card is inserted in the card seat, the 5G module is opened, so as to avoid the 5G module starting in an unintended situation.

[0078] Referring to Figure 2 , the embodiment of the application provides a structure diagram of a plug detection module, wherein the plug detection module provided by the embodiment of the application can include: a first resistor R4215.

[0079] One end of the plug detection module 4 is connected to the 5G module switch pin 6 of the interface circuit 2 through the resistor R4215, and the other end is connected to the SIM card seat circuit 3.

[0080] The USIM_CD pin in the plug detection module 4 is used for the function of detecting the plug of the SIM card seat circuit 3, and when the SIM card is inserted or pulled out, the signal will change. In the embodiment of the application, the USIM_CD pin of the plug detection module 4 is connected to the 5G module switch pin 6 of the interface circuit 2 through the resistor R4215, if the plug detection module 4 does not detect that the SIM card is inserted in the SIM card seat circuit 3, the control signal indicating closing the 5G module is transmitted to the 5G module switch pin 6 of the interface circuit 2 through the USIM_CD pin, and the 5G module is powered off; if the plug detection module 4 detects that the SIM card is inserted in the SIM card seat circuit 3, the control signal indicating opening the 5G module is transmitted to the 5G module switch pin 6 of the interface circuit 2 through the USIM_CD pin, and the 5G module is powered on.

[0081] The plug detection module is connected with the 5G module switch pin of the SIM card seat circuit and the interface circuit, which effectively avoids the 5G module starting due to accidental power-on or other unintended situations, reduces unnecessary resource consumption and potential safety hazards.

[0082] Referring to Figure 3The embodiment of the application provides a structural diagram of a SIM card seat circuit, wherein the SIM card seat circuit provided by the embodiment of the application can include a first SIM card seat circuit 31 and a second SIM card seat circuit 32.

[0083] The reset pin, the clock pin, the power supply pin and the CD pin of the first SIM card seat circuit 31 correspond to the reset pin 30, the clock pin 32, the power supply pin 36 and the selection pin 66 of the interface circuit 2 respectively, the power supply pin of the first SIM card seat circuit 31 includes a first power supply pin and a second power supply pin; the positive power supply pin and the reset pin of the second SIM card seat circuit 32 correspond to the positive power supply pin 48 and the reset pin 30 of the interface circuit 2 respectively, the positive power supply pin of the second SIM card seat circuit 32 includes a first positive power supply pin, a second positive power supply pin and a third positive power supply pin;

[0084] The first SIM card seat circuit 31 is used for acquiring a first 5G signal of a SIM card inserted in a first SIM card seat and transmitting the first 5G signal to the interface circuit 2, wherein the first SIM card seat can be a card seat built in a router and connected with the first SIM card seat circuit 31, in the embodiment of the application, the first SIM card seat can be a self-ejecting SIM card seat supporting nano-SIM card insertion, a user can insert the SIM card into the opening of the SIM card seat and eject the SIM card by gently pushing the SIM card or pressing the button.

[0085] The second SIM card seat circuit 32 is used for acquiring a second 5G signal of a SIM card built in a second SIM card seat and transmitting the second 5G signal to the interface circuit 2, wherein the second SIM card seat can be a card seat built in the router and connected with the second SIM card seat circuit 32, in the embodiment of the application, the second SIM card seat can be a built-in card seat, and the SIM card in the second SIM card seat does not need to be inserted and pulled out.

[0086] The embodiment of the application can make external SIM cards be connected to the router in the form of insertion or built-in through the first SIM card seat circuit and the second SIM card seat circuit in the SIM card seat circuit, thereby providing corresponding network communication services, and being compatible with 4G and 5G networks to realize the transmission and reception of high-speed and low-delay network signals.

[0087] Referring to Figure 4The embodiment of the application provides a structural schematic diagram of a first SIM card seat circuit, wherein the first SIM card seat circuit provided by the embodiment of the application can comprise: a first SIM card seat chip U46, a second resistor R3100, a third resistor R3101, a fourth resistor R3102, a fifth resistor R3103, a first capacitor C2159, a second capacitor C5713, a third capacitor C5714, a fourth capacitor C2162, a fifth capacitor C2163 and a sixth capacitor C2164.

[0088] The ground pin C5 of the first SIM card seat chip U46 is grounded; the input and output pin C7 of the first SIM card seat chip U46 is connected to one end of the second resistor R3100 and the third resistor R3101, the other end of the third resistor R3101 is used as a first power pin of the first SIM card seat circuit 31, the connection end of the second resistor R3100 and the third resistor R3101 is also connected to one end of the first capacitor C2159, and the other end of the first capacitor C2159 is grounded.

[0089] The CD pin CD of the first SIM card seat chip U46 is used as a CD pin of the first SIM card seat circuit 31.

[0090] The power positive pin C1 of the first SIM card seat chip U46 is used as a second power pin of the first SIM card seat circuit 31, and is also grounded through the fourth capacitor C2162, the fifth capacitor C2163 and the sixth capacitor C2164 respectively.

[0091] One end of the fifth resistor R3103 is connected to the reset pin C2 of the first SIM card seat chip U46, the other end of the fifth resistor R3103 is used as a reset pin of the first SIM card seat circuit 31, and the other end of the fifth resistor R3103 is also grounded through the third capacitor C5714.

[0092] One end of the fourth resistor R3102 is connected to the clock pin C3 of the first SIM card seat chip U46, the other end of the fourth resistor R3102 is used as a clock pin of the first SIM card seat circuit 31, and the other end of the fourth resistor R3102 is also grounded through the second capacitor C5713.

[0093] The first SIM card seat circuit is arranged, so that the external SIM card is connected to the router in the form of insertion, thereby providing corresponding network communication services.

[0094] Referring to Figure 5The embodiment of the application provides a structural diagram of a second SIM card seat circuit, wherein the second SIM card seat circuit provided by the embodiment of the application can comprise a first chip U2630 of a second SIM card seat, a second chip U2631 of the second SIM card seat, a sixth resistor R3104, a seventh capacitor C5715, an eighth capacitor C5716, a ninth capacitor C5717, a tenth capacitor C5719, an eleventh capacitor C5720 and a twelfth capacitor C5744.

[0095] The ground pin 1 of the first chip U2630 of the second SIM card seat and the ground pin 1 of the second chip U2631 of the second SIM card seat are grounded; the input / output pin 3 of the first chip U2630 of the second SIM card seat and the input / output pin 3 of the second chip U2631 of the second SIM card seat are connected, the connection end of the input / output pin 3 of the first chip U2630 of the second SIM card seat and the input / output pin 3 of the second chip U2631 of the second SIM card seat is connected with one end of the sixth resistor R3104, one end of the sixth resistor R3104 is also connected with one end of the seventh capacitor C5715, the other end of the seventh capacitor C5715 is grounded, and the other end of the sixth resistor R3104 serves as a first positive power supply pin of the second SIM card seat circuit 32.

[0096] The positive power supply pin 8 of the first chip U2630 of the second SIM card seat serves as a second positive power supply pin of the second SIM card seat circuit 32 and is also grounded through the eighth capacitor C5716 and the ninth capacitor C5717.

[0097] The positive power supply pin 8 of the second chip U2631 of the second SIM card seat serves as a third positive power supply pin of the second SIM card seat circuit 32 and is also grounded through the twelfth capacitor C5744.

[0098] The reset pin 7 of the first chip U2630 of the second SIM card seat and the reset pin 7 of the second chip U2631 of the second SIM card seat are connected, the connection end of the reset pin 7 of the first chip U2630 of the second SIM card seat and the reset pin 7 of the second chip U2631 of the second SIM card seat serves as a reset pin of the second SIM card seat circuit 32 and is grounded through the eleventh capacitor C5720.

[0099] The clock pin 6 of the first chip U2630 of the second SIM card seat is connected with the clock pin 6 of the second chip U2631 of the second SIM card seat, the connection end of the clock pin 6 of the first chip U2630 of the second SIM card seat and the clock pin 6 of the second chip U2631 of the second SIM card seat is also connected with one end of the tenth capacitor C5719, and the other end of the tenth capacitor C5719 is grounded.

[0100] The second SIM card seat circuit is arranged, so that the external SIM card is connected to the router in a built-in manner, thereby providing corresponding network communication services.

[0101] Referring to Figure 6 The 5G module reset circuit provided by the embodiment of the application can include a triode Q20, a seventh resistor R3773, an eighth resistor R3067, a ninth resistor R3068 and a thirteenth capacitor C2281.

[0102] The collector pin and the power pin of the 5G module reset circuit correspond to the 5G reset pin 67 and the power supply circuit of the interface circuit 2 respectively.

[0103] The emitter of the triode Q20 is grounded, the base of the triode Q20 is connected to the emitter through the eighth resistor R3067, and the base of the triode Q20 is connected to the ninth resistor R3068; the collector of the triode Q20 serves as the collector pin of the 5G module reset circuit and is connected to one end of the seventh resistor R3773, the other end of the seventh resistor R3773 serves as the power pin of the 5G module reset circuit, and the other end of the seventh resistor R3773 is also grounded through the thirteenth capacitor C2281.

[0104] The base of the 5G module reset circuit can be connected to the main chip of the router, the input current is provided by the main chip, the interface circuit 2 can be configured as an upper pull configuration, and the triode Q20 can be packaged in SOT23.

[0105] The 5G module reset circuit is arranged, so that the 5G module can be reset and initialized when the router fails, so that the router can be restored to normal.

[0106] Referring to Figure 7 The interface protection circuit provided by the embodiment of the application can include a transient voltage suppression diode D41.

[0107] The CD pin, the clock pin, the data output pin, the power positive pin and the reset pin of the interface protection circuit correspond to the selection pin 66, the clock pin 32, the data output pin 34, the power pin 36 and the reset pin 30 of the interface circuit 2 respectively, and also correspond to the CD pin, the clock pin, the first power pin, the second power pin and the reset pin of the first SIM card seat circuit 31 respectively, that is, the interface protection circuit is connected in parallel between the interface circuit 2 and the first SIM card seat circuit 31.

[0108] The ground pin 2 of the transient voltage suppression diode D41 is grounded; the power positive pin 5 of the transient voltage suppression diode D41 is used as a power positive pin of the interface protection circuit; the reset pin 6 of the transient voltage suppression diode D41 is used as a reset pin of the interface protection circuit; the clock pin 3 of the transient voltage suppression diode D41 is used as a clock pin of the interface protection circuit; the data output pin 4 of the transient voltage suppression diode D41 is used as a data output pin of the interface protection circuit; and the CD pin 1 of the transient voltage suppression diode D41 is used as a CD pin of the interface protection circuit.

[0109] The transient voltage suppression diode D41 can be packaged in SOT23.

[0110] The interface protection circuit is arranged in parallel between the interface circuit and the first SIM card seat circuit, so that the static electricity accumulated by the human body when the SIM card is inserted or pulled out can be prevented from damaging the circuit, and the first SIM card seat circuit and other components can be prevented from being damaged by an excessively high external input voltage.

[0111] Referring to Figure 8 The power supply circuit 1 provided by the embodiment of the present application can include a voltage stabilizing chip U2627, a fourteenth capacitor C5390, a fifteenth capacitor C5361, a sixteenth capacitor C5362, a seventeenth capacitor C5363, an eighteenth capacitor C5364, a nineteenth capacitor C5366, a twentieth capacitor C5367, a twenty-first capacitor C5369, a twenty-second capacitor C5701, a twenty-third capacitor C5702, a twenty-fourth capacitor C814, a twenty-fifth capacitor C5721, a twenty-sixth capacitor C5391, a twenty-seventh capacitor C5392, a tenth resistor R3055, an eleventh resistor R3056, a twelfth resistor R3057, a thirteenth resistor R3058, a fourteenth resistor R3059, and an inductor L2528.

[0112] The ground pin 9 of the voltage stabilizing chip U2627 is grounded; the enable pin 3 of the voltage stabilizing chip U2627 is connected to the main input pin 8 and the auxiliary input pin 7 of the voltage stabilizing chip U2627 through the eleventh resistor R3056, and the enable pin 3 of the voltage stabilizing chip U2627 is also connected to one end of the twenty-fifth capacitor C5721, and the other end of the twenty-fifth capacitor C5721 is grounded;

[0113] The connection ends of the main input pin 8 and the auxiliary input pin 7 of the voltage stabilizing chip U2627 are connected to an external power supply, and the connection ends of the main input pin 8 and the auxiliary input pin 7 of the voltage stabilizing chip U2627 are respectively grounded through the fourteenth capacitor C5390, the sixteenth capacitor C5362, and the seventeenth capacitor C5363;

[0114] The booting pin 1 of the voltage stabilizing chip U2627 is connected with one end of the fifteenth capacitor C5361, and the other end of the fifteenth capacitor C5361 is connected with the inductance switching node pin 2 of the voltage stabilizing chip U2627; the inductance switching node pin 2 of the voltage stabilizing chip U2627 is connected with the feedback pin 5 of the voltage stabilizing chip U2627 in sequence through the inductance L2528, the twelfth resistor R3057 and the thirteenth resistor R3058, and the twelfth resistor R3057 and the twentieth capacitor C5367 are connected in parallel;

[0115] The feedback pin 5 of the voltage stabilizing chip U2627 is grounded in sequence through the thirteenth resistor R3058 and the fourteenth resistor R3055; the connection end of the inductance L2528 and the twelfth resistor R3057 is connected with the interface circuit 2 through the tenth resistor R3055, and is grounded in sequence through the eighteenth capacitor C5364, the nineteenth capacitor C5366, the twenty-fourth capacitor C814, the twenty-first capacitor C5369 and the twenty-second capacitor C5701, and the twenty-second capacitor C5701 and the twenty-third capacitor C5702 are connected in parallel;

[0116] The soft start pin 4 of the voltage stabilizing chip U2627 is grounded through the twenty-seventh capacitor C5392; and the power supply positive pin 6 of the voltage stabilizing chip U2627 is grounded through the twenty-sixth capacitor C5391.

[0117] The power supply circuit is arranged to input external power supply at the input end, convert the voltage required by the interface circuit, and output to the interface circuit to provide working voltage for the interface circuit.

[0118] Referring to Figure 9 and Figure 10 , Figure 9 a structure schematic of a SIM card reading circuit provided by the embodiment of the application Figure 1 , Figure 10 a structure schematic of a SIM card reading circuit provided by the embodiment of the application Figure 2 In some implementable manners, the SIM card seat circuit 3 further comprises a SIM card reading circuit, wherein the SIM card reading circuit provided by the embodiment of the application can comprise: a triode Q21, a fifteenth resistor R3771, a sixteenth resistor R3772 and a seventeenth resistor R3769.

[0119] One end of the SIM card reading circuit is connected with the selection pin 66 of the interface circuit 2, and the other end is connected with the CD pin of the first SIM card seat circuit 31.

[0120] In the first structure, the emitter of the transistor Q21 is grounded, the base of the transistor Q21 is connected with the CD pin CD of the first SIM card seat chip U46 through the sixteenth resistor R3772, the collector of the transistor Q21 is connected with the selection pin 66 of the interface circuit 2, and the transistor Q21 is also connected with the power supply circuit 1 through the fifteenth resistor R3771, and is also connected with the selection pin 66 of the interface circuit 2 and the CD pin CD of the first SIM card seat chip U46 through the seventeenth resistor R3769 respectively.

[0121] In the second structure, the emitter of the transistor Q21 is grounded, the base of the transistor Q21 is connected with the CD pin of the first SIM card seat chip U46 through the sixteenth resistor R3772, the collector of the transistor Q21 is connected with the selection pin 66 of the interface circuit 2, and the transistor Q21 is also connected with the power supply circuit 1 through the fifteenth resistor R3771.

[0122] In the embodiment of the application, the SIM card reading circuit includes two circuit structures as follows Figure 9 and Figure 10 According to actual conditions, one of the two circuit structures can be selected as the SIM card detection circuit implemented by the embodiment, for example, when the SIM card seat circuit 3 is not grounded when the SIM card is inserted, the connection mode in Figure 9 can be selected, and when the SIM card seat circuit 3 is grounded when the SIM card is inserted, the connection mode in Figure 10 can be selected.

[0123] The two structures of the SIM card reading circuit provided in the embodiment of the application can read the 5G signal of the SIM card in different SIM card seat circuits.

[0124] Based on the same concept, the embodiment of the application further provides a router, which includes the router 5G module circuit.

[0125] In one embodiment of the application, the router can further include a main chip, a key circuit, a DDR3 (Double Data Rate 3, Double Data Rate 3) circuit, a NAND (Negative-AND, flash memory) circuit, an LED (Light-Emitting Diode, Light-Emitting Diode) indicator circuit, a network interface circuit, a WIFI module circuit and the router 5G module circuit.

[0126] The main chip is connected with the key circuit, the DDR3 circuit, the NAND circuit, the LED indicator circuit, the network interface circuit, the WIFI module circuit and the router 5G module circuit respectively.

[0127] The main chip can be used for processing and forwarding the communication data between the circuits in the router.

[0128] The key circuit can be used to reset the internal program of the router.

[0129] The DDR3 circuit can be used to store and process the data generated by the router during operation.

[0130] The NAND circuit can be used to store the configuration file of the router.

[0131] The LED indicator circuit can be used to provide visual feedback of the working state of the router.

[0132] The network interface circuit can be used to provide the connection interface of the router with external networks and other devices.

[0133] The WIFI module circuit can be used to receive and send the WIFI signal of the router.

[0134] The router 5G module circuit can be used to convert the 5G signal provided by the inserted SIM card into a WIFI signal.

[0135] In the embodiments of the present application, the main chip can further include a GPIO (General-Purpose Input / Output) interface, and the power-on and power-off of the router 5G module circuit are controlled through the GPIO interface, so that the module state can be managed by software commands, increasing flexibility and convenience. For example, in some application scenarios, the start and stop of the router 5G module can be remotely controlled through network instructions, facilitating centralized management and maintenance.

[0136] The above technical description can refer to the accompanying drawings, which form a part of the present application, and the embodiments according to the described embodiments are shown in the drawings. Although these embodiments are described in sufficient detail to enable those skilled in the art to implement them, these embodiments are non-limiting; thus, other embodiments can be used, and changes can be made without departing from the scope of the described embodiments. For example, the order of operations described in the flowcharts is non-limiting, and thus the order of two or more operations illustrated in the flowcharts and described according to the flowcharts can be changed according to several embodiments. As another example, one or more operations illustrated in the flowcharts and described according to the flowcharts are optional or can be deleted in several embodiments. In addition, certain steps or functions can be added to the disclosed embodiments, or the order of two or more steps can be replaced. All these changes are considered to be included in the disclosed embodiments and claims.

[0137] In addition, terminology used in the above description of the described embodiments is to provide a thorough understanding of such embodiments. However, the detailed description of the embodiments is to be regarded as merely illustrative and not as restrictive, as the scope of the embodiments is indicated by the appended claims rather than by the foregoing description. Accordingly, numerous modifications, adaptations, and variations are enabled to the described embodiments in light of the above teachings. In some instances, well-known processes and techniques have not been described in detail in order to avoid unnecessarily obscuring the described embodiments. Therefore, the above description of the embodiments should not be taken to limit the scope of the described embodiments.

[0138] The principles and implementations of the present application are described in the detailed description of the embodiments. The above description of the embodiments is presented for the purpose of illustrating the principles of the present application. The above description of the embodiments and examples disclosed according to the embodiments are provided separately to add context and help understand the described embodiments. The above description is not intended to be exhaustive or to limit the described embodiments to the precise form disclosed in this application. According to the above teachings, several modifications, adaptations, and variations are possible. In some cases, well-known processing steps are not described in detail to avoid unnecessarily obscuring the described embodiments.

[0139] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A router 5G module circuit, characterized by, The application relates to a power supply circuit, an interface circuit, a SIM card seat circuit and a plug-in detection module, wherein an input end of the power supply circuit is used for being connected with an external power supply, an output end of the power supply circuit is connected with the interface circuit, the interface circuit is further connected with the SIM card seat circuit and an output end of the plug-in detection module respectively, and an input end of the plug-in detection module is connected with the SIM card seat circuit. The power supply circuit is used for converting a voltage provided by the external power supply into a voltage required by the interface circuit and outputting the voltage to the interface circuit to supply power for the interface circuit. The SIM card seat circuit is used for acquiring a 5G signal of a SIM card inserted in a built-in card seat of a router and transmitting the 5G signal to the interface circuit. The plug-in detection module is used for detecting whether a SIM card is inserted in the card seat and transmitting a control signal indicating that a 5G module in the interface circuit is opened to the interface circuit when the SIM card is inserted in the card seat, and transmitting a control signal indicating that the 5G module is closed to the interface circuit when the SIM card is not inserted in the card seat. The interface circuit is used for controlling opening or closing of the 5G module according to the signal transmitted by the plug-in detection module and converting the 5G signal transmitted by the SIM card seat circuit into a WIFI signal and emitting the WIFI signal through the 5G module. The SIM card seat circuit comprises a first SIM card seat circuit and a second SIM card seat circuit.

2. The router 5G module circuit of claim 1, wherein, A reset pin, a clock pin, a power supply pin and a CD pin of the first SIM card seat circuit are respectively connected with a reset pin, a clock pin, a power supply pin and a selection pin of the interface circuit, the power supply pin of the first SIM card seat circuit comprises a first power supply pin and a second power supply pin, a positive power supply pin and a reset pin of the second SIM card seat circuit are respectively connected with a positive power supply pin and a reset pin of the interface circuit, and the positive power supply pin of the second SIM card seat circuit comprises a first positive power supply pin, a second positive power supply pin and a third positive power supply pin. The first SIM card seat circuit is used for acquiring a first 5G signal of a SIM card inserted in a first SIM card seat and transmitting the first 5G signal to the interface circuit. The second SIM card seat circuit is used for acquiring a second 5G signal of a SIM card built in a second SIM card seat and transmitting the second 5G signal to the interface circuit. The first SIM card seat circuit comprises a first SIM card seat chip, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor and a sixth capacitor.

3. The router 5G module circuit of claim 2, wherein, A grounding pin of the first SIM card seat chip is grounded, an input and output pin of the first SIM card seat chip is connected with one end of the second resistor and the third resistor, the other end of the third resistor is used as a first power supply pin of the first SIM card seat circuit, the connection end of the second resistor and the third resistor is further connected with one end of the first capacitor, and the other end of the first capacitor is grounded. ​ The CD pin of the first SIM card seat chip is used as the CD pin of the first SIM card seat circuit; The power positive pin of the first SIM card seat chip is used as the second power pin of the first SIM card seat circuit, and is also grounded through the fourth, fifth and sixth capacitors respectively; The reset pin of the first SIM card seat chip is connected to one end of the fifth resistor, the other end of the fifth resistor is used as the reset pin of the first SIM card seat circuit, and the other end of the fifth resistor is also grounded through the third capacitor; The clock pin of the first SIM card seat chip is connected to one end of the fourth resistor, the other end of the fourth resistor is used as the clock pin of the first SIM card seat circuit, and the other end of the fourth resistor is also grounded through the second capacitor.

4. The router 5G module circuit of claim 2, wherein, The second SIM card seat circuit comprises a second SIM card seat first chip, a second SIM card seat second chip, a sixth resistor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor and a twelfth capacitor; The ground pins of the second SIM card seat first chip and the second SIM card seat second chip are grounded; the input and output pins of the second SIM card seat first chip and the second SIM card seat second chip are connected, one end of the connection of the input and output pins of the second SIM card seat first chip and the second SIM card seat second chip is connected to one end of the sixth resistor, the other end of the sixth resistor is also connected to one end of the seventh capacitor, the other end of the seventh capacitor is grounded, and the other end of the sixth resistor is used as the first positive power pin of the second SIM card seat circuit; The power positive pin of the second SIM card seat first chip is used as the second positive power pin of the second SIM card seat circuit, and is also grounded through the eighth and ninth capacitors respectively; The power positive pin of the second SIM card seat second chip is used as the third positive power pin of the second SIM card seat circuit, and is also grounded through the twelfth capacitor; The reset pins of the second SIM card seat first chip and the second SIM card seat second chip are connected, one end of the connection of the reset pins of the second SIM card seat first chip and the second SIM card seat second chip is used as the reset pin of the second SIM card seat circuit, and is also grounded through the eleventh capacitor; The clock pins of the second SIM card seat first chip and the second SIM card seat second chip are connected, and one end of the connection of the clock pins of the second SIM card seat first chip and the second SIM card seat second chip is also connected to one end of the tenth capacitor, and the other end of the tenth capacitor is grounded.

5. The router 5G module circuit of claim 2, wherein, The SIM card seat of the first SIM card seat circuit is a self-ejecting SIM card seat.

6. The router 5G module circuit according to any one of claims 2 to 5, characterized in that, The interface circuit comprises a 5G module reset circuit for resetting the 5G module, and the collector pin and the power pin of the 5G module reset circuit are respectively connected to the 5G reset pin of the interface circuit and the power supply circuit; And / or, the router 5G module circuit further comprises an interface protection circuit for protecting the interface circuit, the CD pin, clock pin, data output pin, power positive pin and reset pin of the interface protection circuit correspondingly connect the selection pin, clock pin, data output pin, power pin and reset pin of the interface circuit, and correspondingly connect the CD pin, clock pin, first power pin, second power pin and reset pin of the first SIM card seat circuit.

7. The router 5G module circuit of claim 6, wherein, The 5G module reset circuit comprises a transistor, a seventh resistor, an eighth resistor, a ninth resistor and a thirteenth capacitor; The emitter of the transistor is grounded, the base of the transistor is connected with the emitter through the eighth resistor, and the base of the transistor is connected with the ninth resistor; the collector of the transistor serves as the collector pin of the 5G module reset circuit and is connected with one end of the seventh resistor, the other end of the seventh resistor serves as the power pin of the 5G module reset circuit, and the other end of the seventh resistor is also grounded through the thirteenth capacitor.

8. The router 5G module circuit of claim 6, wherein, The interface protection circuit comprises a transient voltage suppression diode; The ground pin of the transient voltage suppression diode is grounded; the power positive pin of the transient voltage suppression diode serves as the power positive pin of the interface protection circuit; the reset pin of the transient voltage suppression diode serves as the reset pin of the interface protection circuit; the clock pin of the transient voltage suppression diode serves as the clock pin of the interface protection circuit; the data output pin of the transient voltage suppression diode serves as the data output pin of the interface protection circuit; and the CD pin of the transient voltage suppression diode serves as the CD pin of the interface protection circuit.

9. The router 5G module circuit according to any one of claims 1 to 5, characterized in that, The interface circuit is set to an up pull configuration.

10. The router 5G module circuit according to any one of claims 1 to 5, characterized in that, The power supply circuit comprises a voltage stabilizing chip, a fourteenth capacitor, a fifteenth capacitor, a sixteenth capacitor, a seventeenth capacitor, an eighteenth capacitor, a nineteenth capacitor, a twentieth capacitor, a twenty-first capacitor, a twenty-second capacitor, a twenty-third capacitor, a twenty-fourth capacitor, a twenty-fifth capacitor, a twenty-sixth capacitor, a twenty-seventh capacitor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor and an inductor; The ground pin of the voltage stabilizing chip is grounded; the enable pin of the voltage stabilizing chip is connected with the main input pin and auxiliary input pin of the voltage stabilizing chip through the eleventh resistor, and the enable pin of the voltage stabilizing chip is also connected with one end of the twenty-fifth capacitor, and the other end of the twenty-fifth capacitor is grounded; The connection ends of the main input pin and auxiliary input pin of the voltage stabilizing chip are connected with an external power supply, and the connection ends of the main input pin and auxiliary input pin of the voltage stabilizing chip are grounded through the fourteenth capacitor, sixteenth capacitor and seventeenth capacitor respectively; The bootstrap pin of the voltage stabilizing chip is connected with one end of the fifteenth capacitor, and the other end of the fifteenth capacitor is connected with the inductance switching node pin of the voltage stabilizing chip; the inductance switching node pin of the voltage stabilizing chip is connected with the feedback pin of the voltage stabilizing chip in sequence through the inductance, the twelfth resistor and the thirteenth resistor, and the twelfth resistor and the twentieth capacitor are connected in parallel; The feedback pin of the voltage stabilizing chip is connected with the ground in sequence through the thirteenth resistor and the fourteenth resistor; the connection end of the inductance and the twelfth resistor is connected with the interface circuit through the tenth resistor, and is connected with the ground through the eighteenth capacitor, the nineteenth capacitor, the twenty-fourth capacitor, the twenty-first capacitor and the twenty-second capacitor respectively, and the twenty-second capacitor and the twenty-third capacitor are connected in parallel; The soft start pin of the voltage stabilizing chip is connected with the ground through the twenty-seventh capacitor; the positive electrode pin of the voltage stabilizing chip is connected with the ground through the twenty-sixth capacitor.

11. A router, characterized in that, A router 5G module circuit comprising the circuit of any one of claims 1 to 10.

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