CN209562220U - The charge management circuit of free-standing feedback monitoring device - Google Patents

Abstract

The utility model discloses the charge management circuit of free-standing feedback monitoring device, including input terminal and output end, input terminal is connected with the output positive and negative charge of power module, and output end is connected with the positive and negative anodes of super capacitor；The utility model provides the charge management circuit of the free-standing feedback monitoring device for super capacitor charging.

Description

The charge management circuit of free-standing feedback monitoring device

Technical field

The utility model relates to electronic technology fields, more specifically, it is related to the charging of free-standing feedback monitoring device Manage circuit.

Background technique

The development of Internet of Things promotes the application of intelligentized control method.In extensive application, Internet of Things includes at least a control End processed and several terminal devices.Common control terminal is equipment and its software kit such as mobile phone, server, computer, hand-held set, Perhaps communication of the controller between them is usually carried using wired, wireless or power line common terminal device such as sensor The communication modes such as wave.Terminal device is powered using power grid in many applications, as lighting system medium-long range controller for road lamp, traffic are believed Number remote controllers, industrial equipment distance sensor, long-range screen monitoring device etc..

In the Internet of Things application for having mass termination, in normal conditions of use, general device will not be extensive suddenly Damage, if then when line power-off when terminal device status information cannot be informed into control terminal in time, control End generally will be considered that terminal unit status, and at least there are two types of possibilities: one is line power-off, another kind is communication abnormality. In the case where not increasing other Rule of judgment, it is extremely difficult reliably to distinguish both possibilities, but locates if do not done Reason, the overall performance of Internet of things system will receive very big influence again.

In order to solve this problem, a simple method be terminal power supply circuit in increase energy storage device, in alternating current Route charges to energy storage device in the case where having electricity, is set using energy storage device to terminal in the case where line power-off Available electricity at least guarantees the state for powering off route and informs control terminal so that terminal device still can be communicated with control terminal.

In this case, energy storage device battery or super capacitor are common schemes.But battery is much being answered There are life problems, especially outdoor application, such as road lightings to realize out due to there is route power on/off daily in Turn off the light, thus daily battery can all be charged or discharged, and this meeting so that its service life quickly reduce.Therefore super capacitor, which looks like, avoids The more preferable scheme of life problems.

However under current technical conditions, the energy density of super capacitor is lower than common cells such as lithium batteries, in order to store Same energy, volume and cost are often bigger.And the terminal of this Internet of Things application, often require that volume very little, cost It is very low.The two produces contradiction at this time.Therefore need to design reasonable management of charging and discharging scheme and terminal device section in the market The electricity consumption strategy of electricity, to alleviate this contradiction.

Summary of the invention

The utility model overcomes the deficiencies in the prior art, provides the free-standing feedback monitoring dress for super capacitor charging The charge management circuit set.

The technical solution of the utility model is as follows:

The charge management circuit of free-standing feedback monitoring device, including input terminal and output end, input terminal and power module Output positive and negative charge be connected, output end is connected with the positive and negative anodes of super capacitor；It further include processor of single chip computer U21, capacitor C21, capacitor C22, capacitor C23, inductance L21, inductance L22, diode D21, switch Q21, resistance R22, resistance R23, current limliting electricity Hinder R21；Wherein, the both ends of capacitor C21 are as input terminal, the anode of one end of capacitor C21 and input terminal, inductance L21 one end, One end of processor of single chip computer U21 connects；The other end of inductance L21 is connect with one end of one end of switch Q21, capacitor C22；Electricity The other end for holding C22 is connect with the anode of one end of inductance L22, diode D21；The cathode and current-limiting resistance R21 of diode D21 One end, one end of capacitor C23, resistance R22 one end connection；The other end and processor of single chip computer U21, resistance of resistance R22 One end of R23 connects；The other end and the cathode of input terminal of capacitor C21, the other end of switch Q21, inductance L22 the other end, The other end of capacitor C23 connects, and the cathode as output end；Anode of the other end of current-limiting resistance R21 as output.

Further, input terminal is V2in+ and V2in-, is connected respectively with the output positive and negative charge of power module；Output End is V2out+ and V2out-, is connected respectively with the positive and negative anodes of super capacitor.

The utility model use simple circuit structure so that management compared with low capacity super capacitor, but can be long as far as possible when Between the requirement for meeting terminal electricity consumption, to guarantee that terminal can send route off-position to control terminal.The utility model is fitted It is wide with property, it is at low cost, it is easy to promote the use of.

Detailed description of the invention

Fig. 1 is apparatus of the present invention circuit diagram；

Fig. 2 is the circuit diagram of charge management module of the invention；

Fig. 3 is the circuit diagram of another charge management module of the invention；

Fig. 4 is the circuit diagram of electric discharge management module of the invention；

Fig. 5 is the circuit diagram of super capacitor repid discharge of the invention；

Fig. 6 is a kind of strategic process figure of super capacitor repid discharge of the invention；

Fig. 7 is another strategic process figure of super capacitor repid discharge of the invention；

Fig. 8 is the physical circuit figure of control interface module of the invention；

Fig. 9 is power control procedures figure of the invention；

Figure 10 is three kinds of common dimming curve figures；

Figure 11 is write-in ID number method flow chart of the invention；

Figure 12 is that present device generates pseudo random number method flow chart；

Figure 13 is that server of the invention generates random number flow chart；

Figure 14 is RC circuit generating random number method circuit diagram of the invention；

Figure 15 is voltage generating random number method circuit diagram of the invention；

Figure 16 is electric current generating random number method circuit diagram of the invention.

Specific embodiment

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.It should be appreciated that described herein Specific embodiment only explaining the utility model, be not used to limit the utility model.

Embodiment 1:

As shown in Fig. 2, the charge management circuit of free-standing feedback monitoring device, charge management circuit module is to be super Capacitor charging.It includes input terminal and output end, and input terminal is connected with the output positive and negative charge of power module, output end with it is super The positive and negative anodes of capacitor are connected；Input terminal is V2in+ and V2in-, is connected respectively with the output positive and negative charge of power module；Output End is V2out+ and V2out-, is connected respectively with the positive and negative anodes of super capacitor.

It further include processor of single chip computer U21, capacitor C21, capacitor C22, capacitor C23, inductance L21, inductance L22, diode D21, switch Q21, resistance R22, resistance R23, current-limiting resistance R21；Wherein, the both ends of capacitor C21 are as input terminal, capacitor C21 One end and the anode of input terminal, one end of inductance L21, processor of single chip computer U21 one end connect；The other end of inductance L21 It is connect with one end of one end of switch Q21, capacitor C22；One end of the other end of capacitor C22 and inductance L22, diode D21 Anode connection；The cathode of diode D21 is connect with one end of one end of current-limiting resistance R21, one end of capacitor C23, resistance R22； The other end of resistance R22 is connect with one end of processor of single chip computer U21, resistance R23；The other end of capacitor C21 and input terminal The other end connection of cathode, the other end of switch Q21, the other end of inductance L22, capacitor C23, and the cathode as output end； Anode of the other end of current-limiting resistance R21 as output.

The circuit of this programme is able to satisfy the requirement of terminal electricity consumption prolonged as far as possible, and uses the super of volume as small as possible Capacitor realizes the power program of terminal device economize on electricity that is, compared with the super capacitor of low capacity, guarantees that terminal can be by route off-position Send control terminal to.

Embodiment 2:

As shown in Fig. 1 to Figure 16, free-standing feedback monitoring device, including input module, output module, measure monitor mould Block, charge management module, electric discharge management module, super capacitor repid discharge module, communication module, control interface module, control Module, power module, super capacitor, diode D11, diode D12, discharge resistance R11.

Input module accesses alternating current to connect power supply.

Output module connects the various equipment for needing to monitor, control to connect load.

The external output digit signals of control interface module or analog signal, such as 0-10V signal, pwm signal etc..

Communication module is transmitted to signal, carries out wireless signal transmission by antenna.

Charge management circuit module for super capacitor to charge.

Discharging management circuit module is discharged to super capacitor to be managed.

Quick release of the super capacitor repid discharge module to super capacitor energy.

Measure monitor module to acquire city's power information, and by processing obtain voltage, electric current, power, power factor and The information such as electricity consumption.Current sampling module in measure monitor module is series on the L line of output module, and voltage sample module is simultaneously It is coupled on the L line and N line of input module, signal processing module is connected with control module for information exchange.

Power module use AC/DC power module, when being worked normally under alternating current to device, to measure monitor module, Control module, communication module are powered, and are super capacitor charging by charge management circuit.

Super capacitor C11 is used for energy storage, compares other energy storage devices, longer life expectancy.

Output voltage of the diode D11 and diode D12 for isolated power supply module and management module of discharging.

Control module and measure monitor module, communication module, control interface module, super capacitor repid discharge module phase Even.

Input module is connect with measure monitor module, and measure monitor module includes current sampling module, voltage sample module And message processing module, the input terminal of current sampling module and the firewire of input module connect, two of voltage sample module are defeated Enter firewire, the zero curve connection at end and input module, input terminal, the control of the output end and message processing module of current sampling module One end of switch K11 connects, and the output end of voltage sample and the input terminal of message processing module connect, message processing module it is defeated Outlet is connect with control module；The firewire of output module is connect with the other end of control switch K11, the third of control switch K11 A port is connect with control module.The zero curve of input module and the zero curve of output module connect.

Power module is connect with input module, measure monitor module, control module, power down reporting module.Wherein in power down Reporting module includes charging module, discharge module, super capacitor, super capacitance management module, diode and load resistance R11.Two Pole pipe includes first diode D11, the second diode D12.The connection of the both ends of charging module and super capacitor, and and discharge module The connection of super capacitance management module, super capacitance management module connect load resistance.The junction of charging module and power module Connect with the anode of the second diode D12, the cathode of the cathode of the second diode D12 and first diode D11, control circuit and Telecommunication circuit connection, the anode of the second diode are connect with discharge module, and capacitor C12 is connected on discharge module.Wherein, using super Grade capacitor is because its service life is longer than other components as energy storage.Load resistance R11, quickly putting when discharging Whether electricity is main easy to produce rear, qualified for quick monitoring device itself.

As shown in Fig. 2, the charge management circuit of free-standing feedback monitoring device.Its V2in+ and V2in- and power module Output positive and negative charge is connected, and V2out+ and V2out- are connected with the positive and negative anodes of super capacitor.

It further includes processor of single chip computer U21, capacitor C21, capacitor C22, capacitor C23, inductance L21, inductance L22, two poles Pipe D21, switch Q21, resistance R22, resistance R23, current-limiting resistance R21.Wherein, the both ends of capacitor C21 are as input terminal, capacitor One end connection of one end of C21 and the anode of input terminal, one end of inductance L21, processor of single chip computer U21；Inductance L21's is another End is connect with one end of one end of switch Q21, capacitor C22；The other end of capacitor C22 and one end, the diode D21 of inductance L22 Anode connection；The cathode of diode D21 and one end of one end of current-limiting resistance R21, one end of capacitor C23, resistance R22 connect It connects；The other end of resistance R22 is connect with one end of processor of single chip computer U21, resistance R23；The other end and input terminal of capacitor C21 Cathode, the other end of switch Q21, the other end of inductance L22, capacitor C23 other end connection, and the yin as output end Pole.Anode of the other end of current-limiting resistance R21 as output.

The effect of resistance R21 is to avoid the excessive damage diode D21 of electric current when for super capacitor charging.Current limliting is played to make With.

As shown in figure 3, being another circuit of Charge Management, using the control mode of current feedback and Voltage Feedback. It can be replaced mutually with Fig. 2 scheme.

Its feedback control module for specifically including charging module, capacitor C31, capacitor C32, capacitor C33, inductance L31, inductance L32, diode D31, switch Q31, sampling resistor R31.Wherein, the both ends of capacitor C31 are as input terminal, one end of capacitor C31 It is connect with one end of the anode of input terminal, one end of inductance L31, feedback control module；The other end and switch Q31 of inductance L31 One end, capacitor C32 one end connection；The other end of capacitor C32 is connect with the anode of one end of inductance L32, diode D31； The cathode of diode D31 is connect with one end of one end of capacitor C33, resistance R32；The other end and feedback control mould of resistance R32 One end connection of block, resistance R33；The other end and the cathode of input terminal of capacitor C31, the other end of switch Q31, inductance L32 One end connection of the other end, the other end of capacitor C33, sampling resistor R31, the other end and feedback control mould of sampling resistor R31 Cathode of the one end of block together as output end.Anode of the one end of capacitor C33 as output.

Wherein, feedback control module by a processor of single chip computer, two operational amplifiers, 11 resistance, two capacitors, Two diodes and photoelectrical coupler.Processor of single chip computer U31, operational amplifier U32, operational amplifier U33；11 resistance point Not Wei resistance R32, resistance R33, resistance R34, resistance R35, resistance R36, resistance R37, resistance R38, resistance R39, resistance R310, Resistance R311, resistance R312；Two capacitors include capacitor C34, capacitor C35；Two diodes are respectively diode D32, two poles Pipe D33.

One end of processor of single chip computer U31 and resistance R312, photoelectrical coupler, one end of resistance R310, resistance R311 One end connection of one end, one end of resistance R36, resistance R37；The other end of resistance R312 is connect with photoelectrical coupler, photoelectricity coupling One end of clutch is connect with the anode of the anode of diode D32, diode D33；The cathode of diode D32 and the one of capacitor C34 End, operational amplifier U32 connection；The other end of capacitor C34 is connect with one end of resistance R35；The other end and resistance of resistance R35 One end of R34, operational amplifier U32 connection, the other end and the other end of resistance R32, one end of resistance R33 of resistance R34 connect It connects；Wherein one end of operational amplifier U32 is connect with the other end of resistance R36.The cathode of diode D33 and the one of capacitor C35 End, operational amplifier U33 connection；The other end of capacitor C35 is connect with one end of resistance R39；The other end and resistance of resistance R39 One end of R38, operational amplifier U33 connection, the other end of resistance R38 are connected with one end of resistance R31；Operational amplifier U33 Wherein one end connect with the other end of resistance R310, the other end of resistance R311 ground connection.

Fig. 4 is discharging management circuit figure, and the major function of this circuit is device in the case where alternating current power-off, allows super electricity Holding is that control module and communication module are powered, and module is made to report alternating current exception information to server.Super capacitor is discharging Voltage can gradually decrease when energy, and special discharging management circuit ensure that when super-capacitor voltage gradually decreases as control module With the stability of communication module supply voltage.

The V4in+ and V4in- of the circuit are connected with the positive and negative anodes of super capacitor.The sun of V4out+ and isolating diode D11 Extremely it is connected.V4out- is connected with the ground connection of control module and communication module.

It includes processor of single chip computer U41, capacitor C41, capacitor C42, capacitor C43, inductance L41, inductance L42, diode D41, switch Q41, resistance R41, resistance R42.Wherein, the both ends of capacitor C41 are as input terminal, one end of capacitor C41 and input One end connection of the anode at end, one end of inductance L41, processor of single chip computer U41；The other end of inductance L41 and the one of switch Q41 One end connection at end, capacitor C42；The other end of capacitor C42 is connect with the anode of one end of inductance L42, diode D41；Two poles The cathode of pipe D41 is connect with one end of one end of current-limiting resistance R41, capacitor C43；The other end and single-chip microcontroller of resistance R41 is handled One end connection of device U41, resistance R42；The other end and the cathode of input terminal, the other end of switch Q41, the inductance L42 of capacitor C41 The other end, capacitor C43 other end connection, and the cathode as output end.Sun of the cathode of diode D41 as output Pole.

It is illustrated in figure 5 super capacitor quick discharging circuit, its purpose is to when program of device upgrading or production maintenance It needs the electricity quick release of super capacitor.Specifically further include super capacitor C11, load resistance R11, switch Q51(using after Electric appliance, metal-oxide-semiconductor or triode etc.)；When processor of single chip computer U51 receives the instruction for needing to discharge, control Q51 closure, at this time Super capacitor just passes through load resistance R11 and releases energy.The positive and negative anodes phase of V5in+ and V5in- and super capacitor C11 in Fig. 5 Even, V5out+ and V5out- are connected with the both ends load resistance R11.

It is as follows that super capacitor repid discharge specifically executes method: concrete operations process is as shown in fig. 6, circuit is in Fig. 1 Control module, control interface module, Fig. 5 circuit and Fig. 8 circuit, when short circuit occurs for the output end of control interface module in Fig. 1, Processor of single chip computer U81 can detect interface circuit short-circuit condition, and this information is fed back to control circuit module, list at this time Piece machine processor U51 receives this information and starts to execute electric discharge instruction.

Another specific execution method of super capacitor repid discharge is as follows: periodically powered on using home-built equipment to device, The mode of power-off carries out control of discharge.Control flow such as Fig. 7, circuit are input module, power module, control circuit in Fig. 1 Module (including timer, counter) and Fig. 5 circuit.When producing maintenance maintenance device, device input termination is periodically (such as: power on 5S, power-off 5S) power supply (using DC low-voltage) voltage, control module detects the voltage of AC/DC module at this time Signal.Timer difference timing power-on time and power-off time in control circuit module, for judging external signal whether just Often, when the value of timer reaches setting value (may be configured as 10 times), flip-flop number starts to count upper power-off number Number is then judged to needing to be implemented electric discharge instruction, processor of single chip computer U51 is turned off the switch at this time when count value reaches setting value Q51 starts to carry out repid discharge to super capacitor.

It is illustrated in figure 8 the physical circuit figure of control interface module, this function is to have light modulation primarily directed to load equipment The equipment such as the LED control device of mode, electric ballast.It, which is exported, can produce two kinds of signals one is analog signal 0-10V, One is digital signal PWM.Judge the dimming mode of load equipment, by device itself to select matched control signal.Three Output of the pole pipe Q81 to control digital signal PWM wave, output of the triode Q82 to control analog signal 0-10V.Operation Amplification of the amplifier U82 to signal, Buffer output of the operational amplifier U83 to signal.

It includes nine resistance, a capacitor, two triodes, a processor of single chip computer and two operational amplifiers； Wherein processor of single chip computer U81 wherein three pins respectively with one end of resistance R81, one end of resistance R82, resistance R83 one One end connection at end, resistance R84, resistance R83 connect the same pin with resistance R82；The other end of resistance R81, resistance R82 The other end is connect with the base stage of triode Q81, emitter respectively；The other end of resistance R83 and one end, the triode of capacitor C81 The emitter of Q82 connects, and one end of resistance R84 is connect with the base stage of triode Q82；Collector, the triode of triode Q81 The collector of Q82 is connect with one end of resistance R85, and the other end of resistance R85 is connect with the positive pin of operational amplifier U82； The negative pin of operational amplifier U82 is connect with one end of one end of resistance R86, resistance R87；The other end and fortune of resistance R87 Calculate the positive pin connection of a pin, operational amplifier U83 of amplifier U82；The negative pin and fortune of operational amplifier U83 Calculate one end connection of the output pin of amplifier U82, one end of resistance R88, resistance R89；The other end, the resistance R89 of resistance R88 The other end respectively as external tapping tie point.

It is illustrated in figure 9 power control procedures figure.This function is to have the LED of dimming mode to control primarily directed to load equipment The equipment that device processed, electric ballast etc. need power regulation.

LED control device/electric ballast adjusting power mode on the market mainly has tri- kinds of 0-10V, 1-10V, PWM at present Mode.The external device with dim signal of LED control device/electric ballast dimming interface exports electric current realization to adjust it Power regulation.For example, three kinds of dimming curves are as schemed there are three types of the dimming modes of the LED control device filled on same path Shown in 10, then the power that just will appear each lamp when executing unified dimmer command using traditional controller for road lamp occurs very The problems such as large deviation, even road uneven illumination.

This partial circuit is control interface module, control module, measure monitor module in Fig. 1, wherein control interface mould The connection of the adjusting power interface circuit of block and load equipment.(include in the power adjustment instruction when device receives power adjustment instruction Need the performance number of load operation) when, power detection, and the reality for the load equipment that will test are carried out by measure monitor module Border performance number is sent to control circuit, and control circuit will test value and target value compares, when detected value is equal to target value, then It is acted without power adjustment, the performance number is directly written in memory.When detected value is not equal to target value, control circuit Control interface makes it through the power for changing 0-10V voltage or PWM to adjust load equipment, until power reaches target Value, final performance number is written in memory.

Random number generation mechanism, if NB-loT is an Internet of Things transmission mode now with fastest developing speed, he supports big face Product application, but do not support simultaneously online or the very strong application scenarios of real-time, if having simultaneously the equipment of a large amount of NB-loT to Server sends data, can cause server blocks, or causes that network is blocked or even equipment may be put on the blacklist, Cause the unstable of whole system, causes to judge abnormal judgement etc. by accident.How to solve the problems, such as number of concurrent, is answered in most of common With in scene, in order to reduce, the power consumption of equipment is reduced, it generally can be using the upward photos and sending messages of equipment active by NB-loT to service Device, but it is difficult the transmission that coordinated control NB-loT equipment carries out information.Such as in the same local area network, there are many NB-loT Equipment (in a free-standing for feedback monitoring device), if this local area network in the electricity went off, the equipment of these NB-loT is almost The problem of meeting be detected in synchronization, all can up be sent out, and very maximum probability is blocked, so as to cause sending times increasing, and The obstruction of the network equipment, and probably equipment is caused to be judged by accident, and will be considered that is blacklist.

The random of itself is passed through when each NB-loT equipment being allowed to report server to same event using nonce mechanism Number generates one and prolongs at random, reduces the number of concurrent under same time, same event by such method.How to generate random Number, specific method include writing ID number method, equipment generation pseudo random number method, server to generate random number method and the life of circuit random number Cheng Fa.Specifically as shown in Figure 11 to Figure 16.

It is specific as follows to write ID number method: according to ID coding method, writing unique ID number for each product of different batches. It further include memory module in Fig. 1 control circuit, equipment is written unique ID number in production, for each equipment, is stored in storage In module.The step of write-in, is as shown in figure 11, when being only written successfully, can just stop being written, and otherwise can unanimously prompt accordingly not Successful information.

It is specific as follows that equipment generates pseudo random number method: each equipment is stored in a pseudo random number, exactly dispatches from the factory before factory The preceding fixed random number generated by computer, the random number and ID number are not related, and are equally existed memory module In.

It is specific as follows that server generates random number method: server distributes where equipment, i.e., by server according to equipment institute In region, random number is distributed unitedly, all there are in memory module by the information.

Circuit generating random number method includes RC circuit generating random number method, voltage generating random number method and adopts electric current random number Method of formation.

RC circuit generating random number method is specific as follows.As shown in figure 14, control circuit and storage circuit, resistance R141, electricity Hold C141 connection.Due to resistance value, capacitance all Normal Distributions, so the voltage in distinct device RC circuit on capacitor has There is discreteness.

When 3.3V voltage is added on R141 and C141 circuit, control circuit start the voltage on sampling capacitance C141 and by When millisecond meter, when the voltage on C141 reaches the 2.5V of setting, control circuit is up to the expansion of time required for 2.5V hundred Again or thousand times as final random number deposit storage circuit.

Voltage generating random number method.Physical circuit is added in resistance R141 and resistance as shown in Figure 15, by 3.3V or 5V R152 composition bleeder circuit on, due to resistance value discreteness and apply alive discreteness, the voltage on R152 have from Dissipate property.The discrete type voltage data acquisition that control circuit is then formed resistance R151 and resistance R152 is returned, and expands hundred times or thousand Times, it is deposited into storage circuit as random number.

Electric current generating random number method, as shown in Figure 16, circuit is mainly by input circuit, output circuit, metering for physical circuit Observation circuit, control circuit, storage circuit composition.Due to the discreteness of line voltage, and the load-carrying difference of each device institute, The discreteness of mains current in each equipment is very big.By measure monitor module, the mains current value in every equipment is measured, And it is transmitted to control circuit, control circuit multiplied by coefficient, stores the current value as random number into storage circuit.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art Art personnel can also make several improvements and modifications without departing from the concept of the premise utility, these improvements and modifications Also it should be regarded as in scope of protection of the utility model.

Claims (2)

1. the charge management circuit of free-standing feedback monitoring device, it is characterised in that: including input terminal and output end, input terminal with The output positive and negative charge of power module is connected, and output end is connected with the positive and negative anodes of super capacitor；It further include processor of single chip computer U21, capacitor C21, capacitor C22, capacitor C23, inductance L21, inductance L22, diode D21, switch Q21, resistance R22, resistance R23, current-limiting resistance R21；Wherein, the both ends of capacitor C21 are as input terminal, one end of capacitor C21 and anode, the inductance of input terminal One end connection of one end, processor of single chip computer U21 of L21；One end of the other end of inductance L21 and switch Q21, capacitor C22 One end connection；The other end of capacitor C22 is connect with the anode of one end of inductance L22, diode D21；The cathode of diode D21 with One end connection of one end of current-limiting resistance R21, one end of capacitor C23, resistance R22；The other end and single-chip microcontroller of resistance R22 is handled One end connection of device U21, resistance R23；The other end and the cathode of input terminal, the other end of switch Q21, the inductance L22 of capacitor C21 The other end, capacitor C23 other end connection, and the cathode as output end；The other end of current-limiting resistance R21 is as output Anode.

2. the charge management circuit of stand alone type feedback monitoring device according to claim 1, it is characterised in that: input terminal For V2in+ and V2in-, it is connected respectively with the output positive and negative charge of power module；Output end is V2out+ and V2out-, respectively It is connected with the positive and negative anodes of super capacitor.