CN220711141U - Power supply circuit integrating terminal traffic panel and belt super capacity management - Google Patents

Abstract

The utility model provides a power supply circuit for super capacity management of a fusion terminal intersection board belt, which comprises a power supply module and a super capacity management module, wherein the power supply module comprises an input protection sub-module, a rectifying and filtering sub-module, a decompression and voltage stabilizing sub-module and a feedback protection circuit; the super-capacity management module comprises a super-capacity overvoltage protection circuit, a super-capacity voltage equalizing protection circuit, a super-capacity voltage boosting and stabilizing circuit and an output control circuit. The utility model has the beneficial effects that: the super capacitor is small in power consumption, voltage-sharing protection, service life of the super capacitor is prolonged, the super capacitor is stably output in 3A capacity from 0.8V to 5.4V by using a boosting chip with low-voltage input, power storage and supply capacity of the super capacitor is improved, the super capacitor and a power module are of the same board design structure, and the problem of complexity of a main board caused by a super capacitor control circuit on a current hybrid terminal collecting board is solved.

Description

Power supply circuit integrating terminal traffic panel and belt super capacity management

Technical Field

The utility model belongs to the technical field of super capacitor charging, and particularly relates to a power supply circuit for super capacity management of a hybrid terminal traffic strip.

Background

The current charging mode of the super capacitor mainly comprises constant current charging, constant power charging, constant current-constant voltage charging, pulse current charging, constant voltage charging and the like, a backup power supply can be provided in a fusion terminal for supplying power for a period of time after equipment is suddenly powered off so as to store fault information or remotely transmit a cloud master station, the backup power supply is needed, the current general method is to use the super Farad capacitor as a temporary power supply device, because the environment on a power supply line is complex, various electromagnetic interference surges and the like exist, because the output voltage of a power supply module is not matched, and a common power supply module does not protect the super capacitor, the direct connection of the super capacitor to the capacitor for charging is generally not feasible, and most of the charging control of the super capacitor is provided on a special transfer circuit.

Disclosure of Invention

In view of the above, the utility model aims to provide a power supply circuit integrating terminal traffic board and super capacity management, which aims to integrate the charge and discharge protection of a super capacitor with a power supply module, and the super capacitor can be connected with power supply in a seamless manner, and aims to directly connect an external output with a circuit main board, so that the main board does not need to consider the power supply problem of the super capacitor.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

the power supply circuit for the super capacity management of the integrated terminal collecting board belt comprises a power supply module and a super capacity management module, wherein the power supply module is electrically connected with the super capacity management module;

the power supply module comprises an input protection sub-module, a rectifying and filtering sub-module, a decompression and voltage stabilizing sub-module and a feedback protection circuit, wherein the input protection sub-module is electrically connected to the decompression and voltage stabilizing sub-module through the rectifying and filtering sub-module, and the decompression and voltage stabilizing sub-module is respectively electrically connected to the feedback protection circuit and the super-capacity management module;

the super-capacitor voltage-boosting and stabilizing circuit is electrically connected to the super-capacitor voltage-boosting and stabilizing circuit and the super-capacitor voltage-boosting and stabilizing circuit respectively, the super-capacitor voltage-boosting and stabilizing circuit is electrically connected to the voltage-reducing and stabilizing sub-module, and the super-capacitor voltage-boosting and stabilizing circuit is electrically connected to the voltage-reducing and stabilizing sub-module through the output control circuit.

Further, the input protection submodule comprises a lightning protection circuit, and the lightning protection circuit comprises a protective tube, a piezoresistor and a discharge tube.

Further, the rectifying and filtering sub-module comprises an electromagnetic interference filter and a rectifying and filtering circuit, wherein the input end of the electromagnetic interference filter is electrically connected with the lightning protection circuit, the output end of the electromagnetic interference filter is electrically connected to the input end of the rectifying and filtering circuit, and the output end of the rectifying and filtering circuit is electrically connected to the decompression and voltage stabilization sub-module.

Furthermore, the decompression voltage stabilizing submodule comprises a PWM pulse width modulation circuit and a voltage stabilizing filter circuit, wherein the input end of the PWM pulse width modulation circuit is electrically connected to the output end of the rectification filter circuit, the output end of the PWM pulse width modulation circuit is respectively electrically connected to the voltage stabilizing filter input end and the feedback protection circuit, and the voltage stabilizing filter output end is electrically connected to the input end of the super-capacity overvoltage protection circuit.

Further, the super-capacity overvoltage protection circuit comprises a resistor R30, a resistor R31, a resistor R32, a resistor R33, a resistor R34, a resistor R35, a resistor R36, a resistor R37, a voltage stabilizing tube D8, an LED2, a comparator U7A, a comparator U7B, pmos tube Q2 and a Pmos tube Q3, one end of the resistor R30 is respectively connected with one end of the resistor R33 and the 3 pin of the comparator U7A, the other end of the resistor R33 is grounded, one end of the resistor R31 is also connected with the 4 pin of the comparator U7A, the other end of the resistor R31 is respectively connected with one end of the voltage stabilizing tube D8 and the 2 pin of the comparator U7A, the other end of the voltage stabilizing tube D8 is grounded, the 1 pin of the comparator U7A is respectively connected with one end of the resistor R32, one end of the resistor R34 and one end of the resistor R35, the other end of the resistor R32 is sequentially connected with the super-capacity protection circuit through the Pmos tube Q2 and the Pmos tube Q3, one end of the two ends of the resistor R32 and the Pmos tube Q3 are sequentially connected with the other end of the resistor U7B, and the other end of the resistor U7B is sequentially connected with the other end of the resistor U7B and the resistor U7A through the other end of the resistor B7B, and the other end of the resistor B7 is sequentially grounded.

Further, the super capacitor voltage equalizing protection circuit comprises a super capacitor C3, a super capacitor C8, a resistor R2, a resistor R3, a resistor R8, a resistor R9, a chip U1 and a chip U3, wherein one end of the super capacitor C3 is respectively connected with the Pmos tube Q3, one end of the resistor R2 and 1 pin of the chip U1, the other end of the super capacitor C3 is respectively connected with 2 pins of the chip U1, one end of the resistor R3, one end of the super capacitor C8, one end of the resistor R8 and 1 pin of the chip U3, the other end of the resistor R2 is connected with 3 pins of the chip U1, the other end of the resistor R3 is connected with 2 pins of the chip U3 and one end of the resistor R9, the other end of the resistor R8 is connected with 3 pins of the chip U3, and the other end of the resistor R9 is connected with 5 pins of the chip U3.

Further, the super capacitor voltage boosting and stabilizing circuit comprises a resistor R1, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a capacitor EC1, a capacitor C2, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a voltage boosting chip U2 and an inductor L1, wherein one end of the resistor R1 is connected with the super capacitor C3, the other end of the resistor R1 is respectively connected with one end of the capacitor C1, one end of the capacitor C2, one end of the inductor L1 and 3 pins of the voltage boosting chip U2, the other end of the capacitor C1 and the other end of the capacitor C2 are grounded, the other end of the inductor L1 is connected with 5 pins of the voltage boosting chip U2, the other end of the 4 pins of the voltage boosting chip U2 are grounded through the resistor R6, the 1 pins of the voltage boosting chip U2 are respectively connected with one end of the resistor R4 and one end of the resistor R5, the other end of the resistor R5 is grounded, the other end of the resistor R4 is respectively connected with one end of the capacitor C1, one end of the capacitor C4, one end of the capacitor C5, the other end of the capacitor C7 and the other end of the capacitor C4 are grounded, and the other end of the capacitor C4 is connected with one end of the capacitor C7.

Further, the output control circuit includes a diode D1, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C12, a capacitor C13, a capacitor C14 and a capacitor P1, the input end of the diode D1 is connected to one end of the voltage stabilizing filter circuit and one end of the capacitor C7, the output end of the diode D1 is connected to one end of the capacitor C9, one end of the capacitor C10, one end of the capacitor C12, one end of the capacitor C13, one end of the capacitor C14, one end of the capacitor C11 and 1 pin of the capacitor P1, and the other end of the capacitor C9, the other end of the capacitor C10, the other end of the capacitor C12, the other end of the capacitor C13, the other end of the capacitor C14, the other end of the capacitor C11 and 2 pins of the capacitor P1 are grounded.

Compared with the prior art, the power supply circuit for the super capacity management of the fusion terminal traffic panel band has the following advantages:

the power supply circuit for super capacity management of the fusion terminal exchange board has the advantages of being small in power consumption, capable of protecting the super capacitor in a voltage-sharing mode, prolonging the service life of the super capacitor, enabling the super capacitor to be stably output from 0.8V to 5.4V in 3A capacity by using a low-voltage input boosting chip, improving the power storage and supply capacity of the super capacitor, and solving the problem of complexity of a main board caused by a super capacitor control circuit on the fusion terminal exchange board.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of an overall structure according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a power module according to an embodiment of the utility model;

FIG. 3 is a schematic diagram of a lightning protection, electromagnetic interference filter, and rectifying filter according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a PWM pulse width modulation, voltage stabilizing filtering and feedback protection circuit according to an embodiment of the present utility model;

fig. 5 is a schematic diagram of a super-capacitor voltage equalizing protection circuit according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of an over-capacitance over-voltage protection circuit according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram of a super capacitor voltage boosting and stabilizing circuit according to an embodiment of the utility model;

fig. 8 is a schematic diagram of an output control circuit according to an embodiment of the utility model.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 8, the power supply circuit for the super capacity management of the hybrid terminal traffic panel comprises a lightning protection circuit, an electromagnetic interference filter, a rectification filter, a PWM (pulse width modulation), a voltage stabilizing filter, a feedback protection circuit, a super capacity overvoltage protection circuit, a super capacity voltage equalizing protection circuit, a super capacity voltage boosting and stabilizing circuit and an output control circuit; the lightning protection part consists of a protective tube, a piezoresistor and a discharge tube, so that the power supply is prevented from being damaged by lightning surge; the electromagnetic interference filter consists of a common mode inductance filter capacitor and a release conversion resistor, so that the EMC requirement is met, and the power supply line interference is prevented from entering a power supply system and a main board; the rectification filter circuit bridge and the filter capacitor are used for rectifying and filtering 220V alternating current in the power supply circuit into direct current 400V for the subsequent circuit; the PWM circuit is composed of a PWM controller OB2269, a switching tube and some peripheral circuits, wherein the circuit uses 500 KHz to modulate pulse width and outputs 5.4V through a rectifying and filtering circuit in a step-down way; the super-capacitor overvoltage protection circuit consists of a comparator and a Pmos tube, and is used for isolating and protecting the output of the super-capacitor charging circuit and the output of the switching power supply and is respectively and electrically connected with the voltage equalizing protection and the switching power supply output module; the super-capacitor voltage equalizing protection circuit controls the charging voltage of each super-capacitor by 5.8V, avoids the overvoltage charging of a single capacitor, and further protects the super-capacitor; the super-capacity boosting and voltage stabilizing circuit is controlled by a boosting chip TPS61023, and the total electric quantity of the super-capacity is stably boosted to 5.4V for output and supply; the output control circuit is used for managing and switching the super-capacity power supply, and rapidly starting the super-capacity power supply under the condition of external power failure

According to the power module for the super capacity management of the alternating-collecting board and strip, disclosed by the utility model, the power consumption is small, the super capacitor is protected under voltage equalizing, the service life of the super capacitor is prolonged, the super capacitor is stably output from 0.8V to 5.4V with 3A capacity by using a low-voltage input boosting chip, the power storage and supply capacity of the super capacitor is improved, and the problem of complexity of a main board caused by the fact that the super capacitor control circuit on the alternating-collecting board of a terminal is fused at present is solved by the design structure of the super capacity and the power module.

Example 1

According to the power module for the super capacity management of the alternating-collecting board and the belt, the power consumption is small, the super capacitor is protected in a voltage equalizing mode, the service life of the super capacitor is prolonged, the electricity storage and supply capacity of the super capacitor is improved, the problem that a main board is complicated due to the fact that the super capacitor control circuit on the alternating-collecting board of the terminal is fused at present is solved, the general super capacitor management is only voltage-regulating serial charging, overshoot protection is avoided, instantaneous heavy current buffer control is avoided, the super capacitor charge and discharge protection circuit is omitted in the power module, and the problem that independent design is needed is solved.

The power supply circuit for the super capacity management of the fusion terminal collecting plate and strip comprises a super capacity overvoltage protection part, a voltage stabilizing tube and a PMOS tube, wherein the super capacity overvoltage protection part is used for detecting the voltage of a super capacity charging end, avoiding damaging a discharge resistor due to long-time overvoltage and playing a role in outputting a switching power supply;

the super-capacitor voltage equalizing protection circuit limits the charging voltage applied to the two ends of each super-capacitor by 5.8V, so that the charging of each super-capacitor is ensured not to exceed 2.7V, the over-voltage charging is avoided, and the super-capacitor is protected;

the super-capacity boosting and voltage stabilizing circuit can stably output a 5.4V power supply to supply power to a system under the condition of 0.8-5.4V input by using a boosting chip;

the output control circuit is used for managing and switching the super-capacity power supply, and rapidly starting the super-capacity power supply under the condition of external power failure.

The super capacitor and the power module are integrated with the design structure of the board, 2 sections of super capacitors, the control circuit and the switching power supply are made into an integrated structure, the occupied space of the alternating current main board is reduced, and the design layout is convenient.

The super capacity management circuit includes:

the voltage equalizing protection circuit is used for conditioning and controlling charging voltages at two ends of each super capacitor connected in series, so that each super capacitor is enabled to charge in an equalizing mode and not overcharged;

the overvoltage protection circuit limits the charging voltage of 5.8V acting on two ends of each super capacitor to ensure that the charging voltage of each super capacitor does not exceed 2.7V, so that the overvoltage charging is avoided, and the super capacitors are protected;

the boosting and voltage stabilizing circuit can stably output a 5.4V power supply to supply power to the system under the condition of 0.8-5.4V input by using a boosting chip;

and the output control circuit is used for managing and switching the super-capacity power supply and rapidly starting the super-capacity power supply under the condition of external power failure.

The super capacitor and the power module are designed with the same board, 2 sections of super capacitors, the control circuit and the switching power supply are made into an integrated structure, the occupied space of the alternating current main board is reduced, and the design layout is convenient.

The voltage equalizing protection unit comprises:

the BW6101 super capacitor protection chip shown in fig. 5 is a main control chip, the circuit directly adopts a power MOS tube inside the BW6101 chip as a bleeder switch, the circuit only needs one chip plus one power resistor, the circuit is simple and reliable, the integration level is high, the compact-structure module design can be conveniently completed, the capacitor protection voltage is 2.65V, when the voltage at two ends of the capacitor is more than 2.65V, the internal bleeder switch is opened, the next-stage capacitor is discharged through the bleeder resistor, the voltage at two ends of the capacitor is ensured not to be over-voltage, the chip is simultaneously provided with an overvoltage LED indicator lamp, and when the voltage at two ends of the capacitor is more than 2.75V, the indicator lamp can be lightened, and can be used for further ensuring the normal work of the monitoring module.

The super-capacity overvoltage protection unit comprises:

the LM393 comparator, the voltage stabilizing tube and the PMOS tube shown in FIG. 6 form an overvoltage protection circuit, the setting resistors R30 and R33 determine the voltage dividing proportion of the input power supply, D8 is a 4.7V voltage stabilizing tube, R30 is a current limiting resistor, and when the input voltage is higher than the 4.7V voltage dividing, the comparator outputs a high level to turn off the super capacitor charging power supply. Meanwhile, the other comparator of the LM393 outputs a high-level overvoltage indicator lamp to be lighted.

The super-capacitance boosting and voltage stabilizing circuit comprises:

the TPS610233.7A boost converter with 0.5V ultra-low input voltage shown in fig. 7 has the input voltage range of 0.5V to 5.5V just in line with the voltage range of the super capacitor, can effectively release all energy in the super capacitor to the system to provide stable 5V power supply, and meanwhile, the chip has the functions of short circuit protection, output overvoltage and thermal shutdown protection.

Fig. 8 shows that the MBR20100CT double-ended 2 input unidirectional diode is used, the input end is connected with the switching power supply DC5.8V and the output dc_cap after the super capacitor is boosted, and the super capacitor is immediately used for power supply under the condition of external power failure.

As shown in fig. 3, the lightning protection circuit: when lightning strike occurs, high voltage is generated and is led into a power supply through a power grid, and a circuit formed by D4, F1, NR1 and D2 is protected. When the voltage applied to the two ends of the piezoresistor exceeds the working voltage, the resistance value is reduced, so that high-voltage energy is consumed on the piezoresistor, if the current is overlarge, F1 and NR1 burn out the protection post-stage circuit, and meanwhile, the discharge tube discharges to discharge lightning stroke energy into the ground.

Input electromagnetic interference filter circuit (EMI): interference from the power grid, such as starting of the motor, switching of the electric appliance, lightning strike, etc., is eliminated, and high-frequency noise generated by the switching power supply is prevented from diffusing to the power grid. The double pi-type filter network consisting of C19, T2, C14, C25 and C20 is mainly used for inhibiting electromagnetic noise and clutter signals of an input power supply, preventing power supply interference and simultaneously preventing high-frequency clutter generated by the power supply from interfering a power grid. When the power is turned on, C15 is charged, and NR1 (thermistor) is added to prevent surge current effectively due to large instantaneous current. Since the instantaneous energy is fully consumed on the NR1 resistor, the NR1 resistor value is reduced after the temperature is increased for a certain time (NR 1 is a negative temperature coefficient element), and the consumed energy is very small, so that the post-stage circuit can work normally.

And the rectification filter circuit is: and rectifying and filtering the input voltage of the power grid to provide direct-current voltage for the converter. The alternating voltage is rectified by DB1 and filtered by C15 to obtain purer direct voltage. If the C15 capacity becomes smaller, the ac ripple of the output will increase.

As shown in fig. 4, the PWM pulse width modulation circuit:

OB2268 and OB2269 are a highly integrated current mode PWM power management IC chip, and the PWM mode is a modulation mode which is most commonly used, in which the switching frequency is kept constant, while the duty ratio of the driving signal in each period is changed to achieve the purpose of modulation. When the output voltage changes, the duty ratio of the driving signal is changed by the control of the loop, so that the output voltage is kept constant. The PWM mode has the following advantages: the control circuit is simple, easy to design and realize, small in output ripple voltage, good in frequency characteristic, high in linearity and high in efficiency under the condition of heavy load.

Working principle:

the input voltage is rectified by the bridge DB1 and regulated by the C15 voltage, one path of the input voltage is sent to the transformer, the other path of the input voltage is sent to the PWM controller OB2268 as starting voltage and power supply after being divided by the R16 and the R19 voltage, and the resistor R38 is used for adjusting the duty ratio of the control signal PWM, namely changing the on-off time of the Q1 and stabilizing the output voltage. T1 is a high frequency transformer that stores energy when Q1 is on and discharges energy when Q1 is off. D5 is a bleeder diode. D1 is an output rectifier diode, C15, R10, R11 eliminates spikes, C21, C22, L2, C23, C24 form an output pi filter, and RL1 is a load.

R13, R14, R15, C17, D5 and R27 form a buffer and are connected with the switch MOS tube Q1 in parallel, so that the voltage stress of the switch tube is reduced, EMI is reduced, secondary breakdown is avoided, when the switch tube Q1 is turned off, the primary coil of the transformer is easy to generate peak voltage and peak current, the peak voltage and the peak current can be absorbed well by the combination of the components, and meanwhile, when the Q1 is turned off, the transformer releases energy through R13, R14, R15, C17 and D5, and meanwhile, the purpose of magnetic field reset is achieved, so that preparation is made for the next energy storage and energy transmission of the transformer;

the current peak value signal measured by R27 participates in the duty ratio control of the current working cycle, and when the voltage on the 6 pin of the PWM controller U4 reaches a set value, the 8 pin of the PWM controller U4 controls the switching tube Q1 to be turned off immediately.

R18 and D6 are auxiliary output ends of the transformer for rectification, and the auxiliary output ends of the transformer are subjected to C26 and C27 filtering voltage stabilization to supply power to the PWM controller OB 2268.

Feedback and short-circuit protection circuit: in case of a short circuit at the output, the PWM control circuit is able to limit the output current to a safe range.

The principle of the feedback and short-circuit protection circuit is briefly described as follows:

when the output circuit is short-circuited and the output voltage disappears, the optocoupler U6 is not conducted, the feedback pin voltage of the PWM controller U5 rises to about 5V, the partial voltage of R22 and R28 exceeds the TL431 reference, the partial voltage is conducted, and the U5 stops working. After U5 stops working, the potential of the FB pin rises, TL431 does not conduct the rising of the potential of the FB pin of U5, and U5 is restarted to repeat. When the short circuit phenomenon disappears, the circuit can automatically recover to a normal working state. R23, R29 are regulated reference settings for regulated supply TL 431.

The main functions of the charge and discharge management power module with the super capacitor comprise:

1. and (3) charging control: the charging process of the super capacitor is accurately controlled through the internal charging control circuit, so that the condition of overcharge or undercharge is avoided.

2. Discharge control: the discharge process of the super capacitor is accurately controlled through the internal discharge control circuit, so that super capacity energy is fully utilized, and the over discharge or under discharge is avoided.

3. And (3) temperature control: the switch power supply has a thermal protection function, and the temperature change of the super capacitor is monitored in real time through the internal temperature sensor, so that the condition that the capacitor is damaged due to overhigh temperature is avoided.

4. Protection control: when the super capacitor has abnormal conditions, such as overcharge, overdischarge, overhigh temperature and the like, the super capacitor charge and discharge management chip can automatically cut off the circuit, so that the safety of the capacitor and the circuit is protected.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (8)

1. The power supply circuit integrating the management of the plate and strip super capacity of terminal intersection is characterized in that: the system comprises a power module and a super capacity management module, wherein the power module is electrically connected with the super capacity management module;

the power supply module comprises an input protection sub-module, a rectifying and filtering sub-module, a decompression and voltage stabilizing sub-module and a feedback protection circuit, wherein the input protection sub-module is electrically connected to the decompression and voltage stabilizing sub-module through the rectifying and filtering sub-module, and the decompression and voltage stabilizing sub-module is respectively electrically connected to the feedback protection circuit and the super-capacity management module;

the super-capacitor voltage-boosting and stabilizing circuit is electrically connected to the super-capacitor voltage-boosting and stabilizing circuit and the super-capacitor voltage-boosting and stabilizing circuit respectively, the super-capacitor voltage-boosting and stabilizing circuit is electrically connected to the voltage-reducing and stabilizing sub-module, and the super-capacitor voltage-boosting and stabilizing circuit is electrically connected to the voltage-reducing and stabilizing sub-module through the output control circuit.

2. The power supply circuit for super capacity management of a fusion terminal traffic panel strip of claim 1, wherein: the input protection submodule comprises a lightning protection circuit, and the lightning protection circuit comprises a protective tube, a piezoresistor and a discharge tube.

3. The power supply circuit for super capacity management of a fusion terminal traffic panel band according to claim 2, wherein: the rectifying and filtering sub-module comprises an electromagnetic interference filter and a rectifying and filtering circuit, wherein the input end of the electromagnetic interference filter is electrically connected with the lightning protection circuit, the output end of the electromagnetic interference filter is electrically connected to the input end of the rectifying and filtering circuit, and the output end of the rectifying and filtering circuit is electrically connected to the decompression and voltage stabilization sub-module.

4. The power supply circuit for super capacity management of a fusion terminal traffic strip of claim 3, wherein: the decompression voltage stabilizing submodule comprises a PWM pulse width modulation circuit and a voltage stabilizing filter circuit, wherein the input end of the PWM pulse width modulation circuit is electrically connected to the output end of the rectification filter circuit, the output end of the PWM pulse width modulation circuit is respectively electrically connected to the voltage stabilizing filter input end and the feedback protection circuit, and the voltage stabilizing filter output end is electrically connected to the input end of the super-capacity overvoltage protection circuit.

5. The power supply circuit for super capacity management of a fusion terminal traffic strip of claim 4, wherein: the super-capacity overvoltage protection circuit comprises a resistor R30, a resistor R31, a resistor R32, a resistor R33, a resistor R34, a resistor R35, a resistor R36, a resistor R37, a voltage stabilizing tube D8, an LED2, a comparator U7A, a comparator U7B, pmos tube Q2 and a Pmos tube Q3, wherein one end of the resistor R30 is respectively connected with one end of the resistor R33 and one end of the resistor R31, the other end of the resistor R33 is grounded, one end of the resistor R31 is also connected with the 4 pin of the comparator U7A, the other end of the resistor R31 is respectively connected with one end of the voltage stabilizing tube D8 and the 2 pin of the comparator U7A, the other end of the voltage stabilizing tube D8 is grounded, the 1 pin of the comparator U7A is respectively connected with one end of the resistor R32, one end of the resistor R34 and one end of the resistor R35, the other end of the resistor R32 is sequentially connected with the super-capacity protection circuit through the Pmos tube Q2 and the Pmos tube Q3, one end of the Pmos tube Q2 and the Pm 3 are sequentially connected with the other end of the resistor R34, and the other end of the resistor U7B is sequentially connected with the other end of the resistor U7B, and the other end of the resistor U7B is sequentially grounded, and the other end of the resistor U7B is connected with the other end of the resistor B7B is connected with the resistor 7B and the other end of the resistor 7B is grounded, and the other end is grounded.

6. The power supply circuit for super capacity management of a fusion terminal traffic strip of claim 5, wherein: the super-capacitor voltage equalizing protection circuit comprises a super capacitor C3, a super capacitor C8, a resistor R2, a resistor R3, a resistor R8, a resistor R9, a chip U1 and a chip U3, wherein one end of the super capacitor C3 is respectively connected with a Pmos tube Q3, one end of the resistor R2 and 1 pin of the chip U1, the other end of the super capacitor C3 is respectively connected with 2 pins of the chip U1, one end of the resistor R3, one end of the super capacitor C8, one end of the resistor R8 and 1 pin of the chip U3, the other end of the resistor R2 is connected with 3 pins of the chip U1, the other end of the resistor R3 is connected with 2 pins of the chip U3 and one end of the resistor R9, the other end of the resistor R8 is connected with 3 pins of the chip U3, and the other end of the resistor R9 is connected with 5 pins of the chip U3.

7. The power supply circuit for super capacity management of a fusion terminal traffic strip of claim 6, wherein: the super capacitor voltage boosting and stabilizing circuit comprises a resistor R1, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a capacitor EC1, a capacitor C2, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a voltage boosting chip U2 and an inductor L1, wherein one end of the resistor R1 is connected with the super capacitor C3, the other end of the resistor R1 is respectively connected with one end of the capacitor C1, one end of the capacitor C2, one end of the inductor L1 and 3 pins of the voltage boosting chip U2, the other end of the capacitor C1 and the other end of the capacitor C2 are grounded, the other end of the inductor L1 is connected with 5 pins of the voltage boosting chip U2, the other pin of the voltage boosting chip U2 is grounded through the resistor R6, the 1 pin of the voltage boosting chip U2 is connected with one end of the resistor R7, the other end of the 6 pins of the voltage boosting chip U2 is respectively connected with one end of the resistor R4, one end of the resistor R5, the other end of the resistor R5 is grounded, the other end of the resistor R4 is respectively connected with one end of the capacitor C1, one end of the capacitor C4, the capacitor C5, the capacitor C6, the other end of the capacitor C7, the capacitor C7 and the other end of the capacitor C7 are also grounded, and the other end of the capacitor C4 is connected with the capacitor C4.

8. The power supply circuit for super capacity management of a fusion terminal traffic strip of claim 7, wherein: the output control circuit comprises a diode D1, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C12, a capacitor C13, a capacitor C14 and a capacitor P1, wherein the input end of the diode D1 is respectively connected with one end of the voltage stabilizing filter circuit and one end of the capacitor C7, the output end of the diode D1 is respectively connected with one end of the capacitor C9, one end of the capacitor C10, one end of the capacitor C12, one end of the capacitor C13, one end of the capacitor C14, one end of the capacitor C11 and 1 pin of the capacitor P1, and the other end of the capacitor C9, the other end of the capacitor C10, the other end of the capacitor C12, the other end of the capacitor C13, the other end of the capacitor C14, the other end of the capacitor C11 and 2 pins of the capacitor P1 are grounded.