Communication transmission device with stable power supply

Abstract

The utility model relates to a communication transmission device, in particular to a communication transmission device with stable power supply, which comprises a communication transmission device body, a main control chip and a power supply module, the power supply module comprises a standby module, a switching circuit and a rectification module for converting alternating current into direct current, and the standby module, the switching circuit and the rectification module are mutually connected in pairs. The standby module comprises a charging and discharging module and a power failure judgment circuit; the power failure judgment circuit is respectively connected with the charging and discharging module and the main control chip; the charging and discharging module is also connected with the rectification module and the switching circuit. According to the utility model, the switching circuit is provided with the super capacitor, and the super capacitor can release the stored electric energy at the moment of power supply switching, thereby providing stable energy supply for the communication transmission device, and guaranteeing the normal operation of the communication transmission device and the stable transmission of data; according to the utility model, the technical problem that the communication transmission device can stably transmit data at the moment of power supply switching is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of communication transmission, and in particular to a communication transmission device with stable power supply. Background Art

[0002] A communication transmission device is a device for transmitting data. In a communication network, it is used to achieve efficient and stable data transmission. A variety of electronic devices are integrated in the communication transmission device, and these devices all require a stable power supply to ensure efficient and stable data transmission.

[0003] In today's communication transmission devices, the power module can provide a stable constant voltage, and the power module has a switching function. When the external power supply is cut off, the backup power supply in the communication transmission device automatically starts working to ensure stable data transmission. However, in existing communication transmission devices, at the moment of power switching, the unstable power supply may cause the data packets being transmitted to be lost or damaged; especially the electronic chips in the communication transmission device, the power switching may cause these electronic chips to restart or reset, thereby interrupting the ongoing communication task.

[0004] Therefore, it is extremely important to solve the problem of ensuring that the communication transmission device can stably transmit data at the moment of power switching. Utility Model Content

[0005] The purpose of the present application is to provide a communication transmission device with stable power supply, which solves the technical problem of ensuring that the communication transmission device can stably transmit data at the moment of power switching.

[0006] In order to solve the above technical problems, the solution adopted by this application is as follows:

[0007] The utility model provides a communication transmission device with stable power supply, comprising a communication transmission device body, characterized in that: it also comprises a main control chip and a power module connected to the main control chip; the power module comprises a standby module, a switching circuit, and a rectifier module for converting alternating current into direct current, and the standby module, the switching circuit, and the rectifier module are connected to each other in pairs; the standby module comprises a charging and discharging module and a power failure judgment circuit, and the charging and discharging module is respectively connected to the rectifier module, the switching circuit, and the power failure judgment circuit for providing direct current; the power failure judgment circuit is also connected to the main control chip;

[0008] The switching circuit includes a transistor, a super capacitor for energy storage, and a voltage regulator. The transistor for switching the input channel is connected to a rectifier module and a standby module respectively. The direct current provided by the rectifier module or the standby module is transmitted to the input end of the voltage regulator connected to the transistor through the transistor; the input end of the voltage regulator is also connected to one end of the super capacitor, and the other end of the super capacitor is grounded.

[0009] In some embodiments, the charging and discharging module includes a charging management chip and an energy storage battery. The charging management chip is connected to the rectifier module that provides the charging power supply. The charging and discharging module transmits the received direct current from the rectifier module to the energy storage battery connected thereto; the energy storage battery outputs direct current to the switching circuit connected thereto.

[0010] In some embodiments, the model of the charging management chip is TP4056.

[0011] In some embodiments, the power outage judgment circuit includes a NOR gate and an XOR gate. The XOR gate is connected to the charging and discharging module that provides the judgment signal. The XOR gate transmits the processed signal of the charging and discharging module to the NOR gate connected to it, and the NOR gate transmits the processed alarm signal to the main control chip connected to it.

[0012] In some embodiments, the drain of the transistor is connected to the standby module, and the source and gate of the transistor are both connected to the rectifier module; the source of the transistor is also connected to a voltage stabilizer and a super capacitor.

[0013] In some embodiments, the regulator has a model number of XC6204B332MR.

[0014] The technical solution of the present application has at least the following advantages and beneficial effects:

[0015] The switching circuit of the utility model is provided with a supercapacitor. At the moment of power switching, the supercapacitor can release the stored electric energy to provide a stable energy supply for the communication transmission device, thereby ensuring the normal operation of the communication transmission device and the stable transmission of data; and the supercapacitor also has the functions of voltage stabilization and filtering, which can effectively prevent voltage fluctuations from affecting the subsequent circuits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a signal flow chart of the power module of the utility model;

[0017] Figure 2 It is a circuit diagram of the backup module of the utility model;

[0018] Figure 3 This is a switching circuit diagram of the utility model. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in the subsequent figures. If the terms "center", "upper", "lower", "inner", "outer", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the figure, or the orientation or position relationship in which the product of the application is usually placed when in use, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. It should also be noted that unless otherwise clearly specified and limited, if the terms "set", "install", and "connect" appear, they should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0021] Example 1

[0022] Please refer to Figure 1-Figure 3 The utility model provides a communication transmission device with stable power supply, including a communication transmission device body, a main control chip, and a power module connected to the main control chip; the power module includes a backup module, a switching circuit, and a rectifier module; the backup module, the switching circuit, and the rectifier module are connected to each other in pairs.

[0023] The rectifier module converts external AC power into DC power, and transmits the converted DC power to the main control chip and the electronic components of the communication transmission device through the switching circuit to provide power;

[0024] The backup module includes a charging and discharging module and a power failure judgment circuit;

[0025] The charging and discharging module includes a charging management chip and an energy storage battery. The charging management chip is connected to the rectifier module that provides the charging power supply. The charging and discharging module transmits the received direct current from the rectifier module to the energy storage battery connected thereto for electric energy storage. The energy storage battery is connected to the switching circuit. If the rectifier module is powered off, the energy storage battery immediately transmits electric energy to the switching circuit.

[0026] The power outage judgment circuit includes a NOR gate and an XOR gate. The XOR gate is connected to the charge and discharge module that provides the judgment signal. The XOR gate transmits the processed signal of the charge and discharge module to the NOR gate connected to it, and the NOR gate processes the signal. The processed alarm signal is transmitted by the NOR gate to the main control chip connected to it, and the main control chip sends an alarm message to the monitoring end to remind the staff that the power status of the communication transmission device has changed, so that the staff can take some necessary measures to save data before the battery is exhausted.

[0027] Furthermore, the backup module includes a charging management chip U2, an energy storage battery U3, an XOR gate U4, an NOR gate U5, transistors Q2, Q3, ordinary capacitors C4, C5, C6, and resistors R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, and R13; wherein the charging and discharging module includes a charging management chip U2, an energy storage battery U3, ordinary capacitors C4, C5, C6, transistors Q2, Q3, and resistors R3, R4, R5, R6, R7, R8, R9, R10, and R11; and the power failure switching circuit includes an XOR gate U4, an NOR gate U5, and resistors R12 and R13.

[0028] Further, in the standby module, one end of the resistor R3 is connected to the PROG end of the charging management chip U2, the VCC end of the charging management chip U2 is connected to one end of the ordinary capacitor C4 and connected to the power supply, the BAT end of the charging management chip U2, the pin 1 of the energy storage battery U3, and one end of the ordinary capacitor C5 are connected, and the connected part is set as the VBAT output end, which is used to output the electric energy of the energy storage battery to the switching circuit; one end of the ordinary capacitor C6 is connected to the CE end of the charging management chip U2 and connected to the power supply, the other end of the ordinary capacitor C6, the other end of the resistor R3, the other end of the ordinary capacitor C4, the other end of the ordinary capacitor C5, the pin 2 of the energy storage battery U3 and the EP end, TEMP end, and GND end of the charging management chip U2 are connected and grounded; the SHRG# end of the charging management chip U2 is connected to one end of the resistor R4, and the STDBY# end of the charging management chip U2 is connected to one end of the resistor R7; the other end of the resistor R4, One end of the resistor R5, one end of the resistor R10, and the collector of the transistor Q2 are connected, the other end of the resistor R5 is connected to the base of the transistor Q2, the emitter of the transistor Q2, one end of the resistor R6, and the A end of the XOR gate U4 are connected, and the other end of the resistor R6 is grounded; the other end of the resistor R10 is connected to one end of the resistor R11 and connected to the power supply, the other end of the resistor R11, the other end of the resistor R7, one end of the resistor R8, and the collector of the transistor Q3 are connected, and the emitter of the transistor Q2, one end of the resistor R6, and the A end of the XOR gate U4 are connected. The other end of resistor R8 is connected to the base of transistor Q3, the emitter of transistor Q3, one end of resistor R9, and the B end of XOR gate U4 are connected, and the other end of resistor R9 is grounded; the Y end of XOR gate U4 is connected to the B end of NOR gate U5, the A end of NOR gate U5, one end of resistor R12, and one end of resistor R13 are connected, the other end of resistor R13 is connected to the power supply, and the other end of resistor R12 is grounded; the Y end of NOR gate U5 is connected to pin PA3 of the main control chip.

[0029] It should be noted that in the charging and discharging module, the power source is the electric energy output by the rectifier module; the model of the charging management chip U2 is TP4056.

[0030] The switching circuit includes a transistor, a super capacitor, and a voltage regulator. The transistor for switching the input channel is connected to the rectifier module and the standby module respectively. The direct current provided by the rectifier module or the standby module is transmitted to the input end of the voltage regulator connected to the transistor through the transistor. The voltage regulator stabilizes the electric energy and outputs it to the main control chip and the electronic device of the communication transmission device.

[0031] The connection between the input end of the voltage regulator and the transistor is also connected to a supercapacitor. The supercapacitor C1 has the functions of storing electric energy and stabilizing voltage. When electric energy passes through the switching circuit, the supercapacitor stores electric energy; when the switching circuit switches the input channel, the supercapacitor releases electric energy to ensure the normal operation of the communication transmission device and stable data transmission at the switching moment, and the supercapacitor can effectively prevent voltage fluctuations from affecting the subsequent circuits.

[0032] Furthermore, the switching circuit includes a voltage stabilizer U1, a transistor Q1, a diode D1, a super capacitor C1, ordinary capacitors C2 and C3, and resistors R1 and R2; the super capacitor C1 has the functions of storing electric energy, filtering, and voltage stabilization, and the functions of ordinary capacitors C2 and C3 are both filtering.

[0033] Further, in the switching circuit, the D pole (drain) of the transistor Q1 is set as the IN_VBAT input terminal for receiving electric energy in the energy storage battery; the G pole (gate) of the transistor Q1, one end of the resistor R1, and the positive pole of the diode D1 are connected, and the IN_VCC input terminal is set at this connection part for receiving electric energy in the rectifier module; the S pole of the transistor, the negative pole of the diode D1, one end of the super capacitor C1, one end of the ordinary capacitor C2, one end of the resistor R2, and the VIN terminal of the voltage regulator U1 are connected; the other end of the resistor R1 and the other end of the super capacitor C1 are connected and grounded, and the other end of the resistor R2 is connected to the EN terminal of the voltage regulator U1; the other end of the ordinary capacitor C2 is connected to the GND terminal of the voltage regulator U1 and grounded; the VOUT terminal of the voltage regulator U1 is connected to one end of the ordinary capacitor C3, and the connection part is provided with a VOUT output terminal for outputting electric energy to the electronic devices in the communication transmission device and for providing power to each electronic device; the other end of the ordinary capacitor C3 is grounded.

[0034] It should be noted that the model of the voltage regulator U1 is XC6204B332MR.

[0035] In the present invention, the main control chip, the rectifier module and other electronic components in the communication transmission device are all existing technologies and will not be described in detail here.

[0036] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution of the present invention, and the scope of the present invention is defined by the attached claims.

Claims

1. A communication transmission device with stable power supply, comprising a communication transmission device body, characterized in that: It also includes a main control chip and a power module connected to the main control chip; the power module includes a backup module, a switching circuit, and a rectifier module for converting AC power into DC power, and the backup module, the switching circuit, and the rectifier module are connected to each other in pairs; the backup module includes a charging and discharging module and a power failure judgment circuit, and the charging and discharging module is respectively connected to the rectifier module, the switching circuit, and the power failure judgment circuit that provide DC power; the power failure judgment circuit is also connected to the main control chip; The switching circuit includes a transistor, a super capacitor for energy storage, and a voltage regulator. The transistor for switching the input channel is connected to a rectifier module and a standby module respectively. The direct current provided by the rectifier module or the standby module is transmitted to the input end of the voltage regulator connected to the transistor through the transistor; the input end of the voltage regulator is also connected to one end of the super capacitor, and the other end of the super capacitor is grounded.

2. A communication transmission device with stable power supply according to claim 1, characterized in that: The charging and discharging module includes a charging management chip and an energy storage battery. The charging management chip is connected to the rectifier module that provides charging power. The charging and discharging module transmits the received direct current from the rectifier module to the energy storage battery connected thereto. The energy storage battery outputs direct current to the switching circuit connected thereto.

3. A communication transmission device with stable power supply according to claim 2, characterized in that: The model of the charging management chip is TP4056.

4. A communication transmission device with stable power supply according to claim 1, characterized in that: The power outage judgment circuit includes a NOR gate and an XOR gate. The XOR gate is connected to the charging and discharging module that provides the judgment signal. The XOR gate transmits the processed signal of the charging and discharging module to the NOR gate connected to it, and the NOR gate transmits the processed alarm signal to the main control chip connected to it.

5. A communication transmission device with stable power supply according to claim 1, characterized in that: The drain of the transistor is connected to the standby module, and the source and gate of the transistor are both connected to the rectifier module; the source of the transistor is also connected to a voltage stabilizer and a super capacitor.

6. A communication transmission device with stable power supply according to claim 1, characterized in that: The model of the voltage regulator is XC6204B332MR.

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