CN115347654A - Super capacitor and lithium battery parallel circuit capable of recycling energy - Google Patents

Super capacitor and lithium battery parallel circuit capable of recycling energy Download PDF

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Publication number
CN115347654A
CN115347654A CN202211119612.3A CN202211119612A CN115347654A CN 115347654 A CN115347654 A CN 115347654A CN 202211119612 A CN202211119612 A CN 202211119612A CN 115347654 A CN115347654 A CN 115347654A
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CN
China
Prior art keywords
resistor
super capacitor
module
lithium battery
control module
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CN202211119612.3A
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Chinese (zh)
Inventor
陈桂庆
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Jiangsu Zhongjin Magnet Technology Co ltd
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Jiangsu Zhongjin Magnet Technology Co ltd
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Priority to CN202211119612.3A priority Critical patent/CN115347654A/en
Publication of CN115347654A publication Critical patent/CN115347654A/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014—Circuits for equalisation of charge between batteries
    • H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302—Overcharge protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/13—Energy storage using capacitors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a super capacitor and lithium battery parallel circuit with a possibility of energy recovery, which relates to the technical field of electronic circuits and comprises an input module, a storage module and a control module, wherein the input module is used for inputting energy; the control module is used for bidirectional voltage transmission control; the super capacitor bank module is used for storing and discharging energy; the driving adjusting module is used for controlling the balancing adjusting module to adjust the voltage of the super capacitor bank module; the switch control module is used for voltage sampling and threshold value comparison and controlling electric energy to be transmitted to the lithium battery control module; and the lithium battery control module is used for charge and discharge control and overcharge protection control. The super capacitor and lithium battery parallel circuit with the potential energy recovery function controls the charge and discharge control of the super capacitor bank module through the bidirectional voltage circuit, so that the super capacitor bank module realizes the recovery and discharge control of input energy, performs the balance control on the super capacitor bank module, controls the complementary connection of the lithium battery control module and the super capacitor bank, and realizes the mutual supplement and storage of energy.

Description

Super capacitor and lithium battery parallel circuit capable of recycling energy
Technical Field
The invention relates to the technical field of electronic circuits, in particular to a super capacitor and lithium battery parallel circuit with a recoverable capacity.
Background
In present electronic equipment, the electric energy is very important to with electronic equipment, electronic equipment need obtain the required electric energy of application system and just can maintain electronic equipment's normal operating, this also makes electrical power generating system obtain continuous development and innovation, energy storage equipment such as super capacitor is adopted mostly to current energy supply device, the lithium cell, battery provide required DC power supply for electronic equipment, but energy storage equipment is when charging, mostly adopt the mode of charge discharge to carry out overcharge protection and fault protection, lead to the waste of energy, and the battery only possesses energy characteristic, electric capacity energy storage battery has power energy storage characteristic, the two is mostly direct through parallelly connected mode lug connection, energy management efficiency is lower, need the better energy management who optimizes the two, just can improve the utilization ratio to the electric energy, therefore remain the improvement.
Disclosure of Invention
The embodiment of the invention provides a super capacitor and lithium battery parallel circuit capable of recycling energy, which is used for solving the problems in the background technology.
According to an embodiment of the present invention, a super capacitor and lithium battery parallel circuit capable of recycling capacity is provided, and the super capacitor and lithium battery parallel circuit capable of recycling capacity includes: the system comprises an input module, a control module, a super capacitor bank module, a driving regulation module, a balance regulation module, a switch control module and a lithium battery control module;
the input module is used for inputting energy required to be recovered;
the control module is connected with the input module, and is used for transmitting the recovered energy to the super capacitor bank module and transmitting the electric energy output by the super capacitor bank module;
the super capacitor bank module is connected with the control module and used for storing and discharging energy through a super capacitor bank circuit;
the driving adjusting module is connected with the balance adjusting module, and is used for sampling the voltage of the super capacitor bank circuit and outputting a driving signal;
the balancing adjusting module is connected with the super capacitor bank module, is used for controlling the closing work of the power tube circuit and the energy storage work of the inductance circuit through the driving signal, and is used for detecting that the electric energy stored by the inductance circuit is transmitted to the super capacitor bank circuit with lower voltage;
the switch control module is connected with the super capacitor bank module and the control module, is used for detecting the voltage condition of the super capacitor bank module, compares the voltage condition with a set electric quantity threshold value, and is used for controlling the connection of the control module and the lithium battery control module;
the lithium battery control module is connected with the switch control module and the super capacitor bank module, and is used for receiving the electric energy output by the control module, providing the electric energy for the control module, and detecting and controlling the electric quantity to work by the switch control module.
Compared with the prior art, the invention has the beneficial effects that: the super capacitor and lithium battery parallel circuit with the potential energy recovery function controls the charge and discharge control of the super capacitor bank module through the control module, so that the super capacitor bank module realizes the recovery and discharge control of input energy, the input energy can be uniformly absorbed by the super capacitor bank module through driving the adjusting module and the balance adjusting module, unnecessary energy waste is avoided, the energy absorption rate is provided, the switch control module controls the parallel connection of the lithium battery control module and the super capacitor bank module, the efficiency of absorbing the input energy is provided, meanwhile, the super capacitor bank module can absorb electric energy released by the lithium battery control module when the super capacitor bank module is fully charged, and the utilization rate of the input energy is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic block diagram of a parallel circuit of a super capacitor and a lithium battery with energy recovery capability according to an embodiment of the present invention.
Fig. 2 is a circuit diagram of a parallel circuit of a super capacitor and a lithium battery with capacity recovery according to an embodiment of the present invention.
Fig. 3 is a connection circuit diagram of a switch control module according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In embodiment 1, referring to fig. 1, a parallel circuit of a super capacitor and a lithium battery with potential recovery includes: the system comprises an input module 1, a control module 2, a super capacitor bank module 3, a driving regulation module 4, a balance regulation module 5, a switch control module 6 and a lithium battery control module 7;
specifically, the input module 1 is used for inputting energy required to be recovered;
the control module 2 is connected with the input module 1, and is used for transmitting the recovered energy to the super capacitor bank module 3 and transmitting the electric energy output by the super capacitor bank module 3;
the super capacitor bank module 3 is connected with the control module 2 and used for storing and discharging energy through a super capacitor bank circuit;
the driving adjusting module 4 is connected with the balance adjusting module 5, and is used for sampling the voltage of the super capacitor bank circuit and outputting a driving signal;
the balance adjusting module 5 is connected with the super capacitor bank module 3, is used for controlling the closing work of the power tube circuit and the energy storage work of the inductance circuit through the driving signal, and is used for detecting that the electric energy stored by the inductance circuit is transmitted to the super capacitor bank circuit with lower voltage;
the switch control module 6 is connected with the super capacitor bank module 3 and the control module 2, is used for detecting the voltage condition of the super capacitor bank module and comparing the voltage condition with a set electric quantity threshold value, and is used for controlling the connection between the control module 2 and the lithium battery control module 7;
lithium battery control module 7, with on-off control module 6 and super capacitor bank module 3 are connected, are used for receiving control module 2 output electric energy, be used for doing control module 2 provides the electric energy, is used for carrying out electric quantity detection and control on-off control module 6's work.
In a specific embodiment, the input module 1 is configured to perform port connection with energy to be stored, which is not described in detail herein; the control module 2 can adopt a bidirectional DC-DC regulating circuit to complete charging and discharging control; the balance adjusting module 5 can adopt a power tube circuit and an inductance circuit to complete the transfer of electric energy; the driving regulation module 4 controls the operation of the balance regulation module 5 through a hysteresis driving circuit consisting of operational amplifiers; the switch control module 6 can adopt a power tube circuit to control the input and output of energy; the lithium battery control module 7 adopts a special lithium battery charging detection control circuit to realize the charging and discharging control of the lithium battery circuit.
In this embodiment, referring to fig. 2 and fig. 3, the input module 1 includes an input port and a first capacitor C1; the control module 2 comprises a first control tube Q1, a second control tube Q2, a first resistor R1, a second resistor R2, a first inductor L1 and a controller;
specifically, the first end of the input port is connected to one end of a first capacitor C1 and a collector of a first control tube Q1, one end of the first capacitor C1, the second end of the input port, and an emitter of a second control end are all grounded, the controller is connected to a gate of the first control tube Q1 and a gate of a second control tube Q2, the emitter of the first control tube Q1 and the collector of the second control tube Q2 are connected to a first end of a first inductor L1 through a first resistor R1, and the second end of the first inductor L1 is connected to the supercapacitor pack module 3 and is connected to a ground end through a second resistor R2.
In a specific embodiment, the first control tube Q1 and the second control tube Q2 may both be IGBTs; the controller can be selected, but is not limited to microcontrollers such as a DSP (digital signal processor), a singlechip and the like to complete control over the first control tube Q1 and the second control tube Q2 so as to realize bidirectional energy transmission control.
Further, the supercapacitor pack module 3 comprises a first supercapacitor CD1 and a second supercapacitor CD2; the balance adjusting module 5 comprises a second inductor L2, a first diode D1, a second diode D2, a first power tube M1, a second power tube M2, a third inductor L3 and a fourth inductor L4;
specifically, the first end of the first super capacitor CD1 is connected to the second end of the second inductor L2, the cathode of the first diode D1, and one end of a third inductor L3, the second end of the first super capacitor CD1 is connected to the first end of the second super capacitor CD2, the source of the second power tube M2, and the cathode of the second diode D2, and is connected to the anode of the first diode D1 and the source of the first power tube M1 through the second inductor L2, the second end of the second super capacitor CD2 is connected to the emitter of the second control tube Q2 and the source of the first power tube M1, and is connected to the anode of the second diode D2 and one end of the second capacitor through a fourth inductor L4, the other end of the third inductor L3 is connected to the drain of the second power tube M2 and the other end of the second capacitor, and the gate of the first power tube M1 and the gate of the second power tube M2 are connected to the driving adjustment module 4.
In a specific embodiment, both the first power transistor M1 and the second power transistor M2 may be N-channel enhancement MOS transistors; the third inductor L3 and the fourth inductor L4 are used for storing energy and adjusting the electric energy of the first super capacitor CD1 and the second super capacitor CD 2.
Further, the driving adjustment module 4 includes a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first operational amplifier OP1, a second operational amplifier OP2, a seventh resistor R7, an eighth resistor R8, and a ninth resistor R9;
specifically, one end of the third resistor R3 is connected to the first end of the first super capacitor CD1, the other end of the third resistor R3 is connected to the inverting terminal of the second operational amplifier OP2 and is connected to one end of the fifth resistor R5 and one end of the sixth resistor R6 through the fourth resistor R4, the other end of the sixth resistor R6 is connected to the inverting terminal of the first operational amplifier OP1, the inverting terminal of the first operational amplifier OP1 is connected to the second end of the first super capacitor CD1 and is connected to the inverting terminal of the second operational amplifier OP2 and one end of the ninth resistor R9 through the eighth resistor R8, the other end of the ninth resistor R9 and the output terminal of the second operational amplifier OP2 are both connected to the gate of the first power transistor M1, the other end of the sixth resistor R6 is connected to the inverting terminal of the first operational amplifier OP1 and is connected to the output terminal of the first operational amplifier OP1 and the gate of the second power transistor M2 through the seventh resistor R7, and the other end of the fifth resistor R5 is grounded.
In a specific embodiment, the first operational amplifier OP1 and the second operational amplifier OP2 may both use a hysteresis comparator, and the specific type is not limited; the third resistor R3, the fourth resistor R4, and the fifth resistor R5 are used to detect a voltage value of the super capacitor bank module.
Further, the switch control module 6 includes a tenth resistor R10, an eleventh resistor R11;
specifically, a first end of the tenth resistor R10 is connected to a first end of the first super capacitor CD1, and a second end of the tenth resistor R10 is connected to a second end of the second super capacitor CD2 through an eleventh resistor R11.
Further, the switch control module 6 further includes a first comparator A1, a sixteenth resistor R16, a seventeenth resistor R17, a first power source VCC1, a third power tube M3, an eighteenth resistor R18, an electric quantity threshold, and a third diode D3;
specifically, the inverting terminal of the first comparator A1 is connected to the second terminal of the tenth resistor R10, the inverting terminal of the first comparator A1 is connected to the electric quantity threshold, the power supply terminal of the first operational amplifier OP1 is connected to the first power supply VCC1 and is connected to the output terminal of the first operational amplifier OP1 and one end of the seventeenth resistor R17 through the sixteenth resistor R16, the other end of the seventeenth resistor R17 is connected to the gate of the third power tube M3 and the lithium battery control module 7, the source of the third power tube M3 is also connected to the lithium battery control module 7, the drain of the third power tube M3 is connected to the cathode of the third diode D3 through the eighteenth resistor R18, and the anode of the third diode D3 is connected to the collector of the first control terminal.
In a specific embodiment, the first comparator A1 may be an LM393 comparator; the third power transistor M3 may be an N-channel enhancement MOS transistor.
Further, the lithium battery control module 7 includes a third capacitor C3, a lithium battery pack BAT, a twelfth resistor R12, a thirteenth resistor R13, an adapter U1, a fourth power tube M4, a fourteenth resistor R14, a fifteenth resistor R15, a fourth diode D4, and a fuse FU1;
specifically, one end of the third capacitor C3, the first end of the lithium battery pack BAT, one end of the twelfth resistor R12, the anode of the fourth diode D4, and the source of the fourth power tube M4 are all connected to the source of the third power tube M3, the cathode of the fourth diode D4 is connected to the collector of the first control tube Q1 through the fuse FU1, the other end of the twelfth resistor R12 is connected to the first end of the adapter U1 and is connected to the tab of the lithium battery pack BAT through the thirteenth resistor R13, the other end of the third capacitor C3 and the ground end, the third end of the adapter U1 is grounded, the second end of the adapter U1 is connected to the gate of the fourth power tube M4, the drain of the fourth power tube M4 is connected to one end of the fifteenth resistor R15 and the gate of the third power tube M3 through the fourteenth resistor R14, and the other end of the fifteenth resistor R15 is grounded.
In a specific embodiment, the adapter U1 may be a single lithium battery monitoring chip, and the specific type is not limited; the fourth power transistor M4 may be a P-channel enhancement MOS transistor.
The invention relates to a super capacitor and lithium battery parallel circuit with energy recovery capability, energy required to be absorbed or stored is provided by an input port, a controller controls a first power tube M1 and a second power tube M2 to transmit input electric energy to a super capacitor bank module, the super capacitor bank module stores the energy, the super capacitor bank module is controlled by a balance adjusting module 5 and a driving adjusting module 4 together, constant-voltage charging control is carried out between a plurality of groups of super capacitors in the super capacitor bank module, and balance control of the super capacitor bank module is completed, specifically, when the voltage of the first super capacitor CD1 is higher than that of the second super capacitor CD2, the first super capacitor CD1 and a third inductor L3 provide electric energy for the second super capacitor CD2 until the balance is achieved, when the total voltage of the super capacitor bank module reaches a set electric quantity threshold value, the first comparator A1 controls the third power tube M3 to be conducted, so that the lithium battery control module 7 is connected with the control module 2, bidirectional DC-DC conversion can be achieved, the lithium battery control module 7 is powered by the input port or the super capacitor bank module and the super capacitor bank module controls the lithium battery bank module to be powered on until the super capacitor bank module is powered on, and the super capacitor bank module controls the lithium battery energy storage module to be not powered by the super capacitor bank module, and the super capacitor bank module, when the super capacitor bank module is fully, the super capacitor bank module 7 controls the lithium battery bank module to provide the lithium battery energy, and the lithium battery energy storage module, and the lithium battery bank module to be powered on.
This super capacitor and lithium cell parallel circuit of energy recuperation passes through the charge and discharge control of control module 2 control super capacitor group module 3, make super capacitor group module realize retrieving and discharge control to input energy, and make the energy of input can be balanced absorb by super capacitor group module 3 through drive adjusting module 4 and balanced adjusting module 5, avoid unnecessary energy waste, provide energy absorption rate, and control lithium cell control module 7 and super capacitor group module 3's parallel connection by switch control module 6, provide the efficiency to input energy absorption, can absorb the electric energy that lithium cell control module 7 released when full electricity at super capacitor group module 3 simultaneously, further improve the utilization ratio to input energy.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. A super capacitor and lithium battery parallel circuit with potential recovery is characterized in that,
the super capacitor and lithium battery parallel circuit capable of recovering energy comprises: the system comprises an input module, a control module, a super capacitor bank module, a driving regulation module, a balance regulation module, a switch control module and a lithium battery control module;
the input module is used for inputting energy required to be recovered;
the control module is connected with the input module, and is used for transmitting the recovered energy to the super capacitor bank module and transmitting the electric energy output by the super capacitor bank module;
the super capacitor bank module is connected with the control module and used for storing and discharging energy through a super capacitor bank circuit;
the driving adjusting module is connected with the balance adjusting module, and is used for sampling the voltage of the super capacitor bank circuit and outputting a driving signal;
the balancing adjusting module is connected with the super capacitor bank module, is used for controlling the closing work of the power tube circuit and the energy storage work of the inductance circuit through the driving signal, and is used for detecting that the electric energy stored by the inductance circuit is transmitted to the super capacitor bank circuit with lower voltage;
the switch control module is connected with the super capacitor bank module and the control module, is used for detecting the voltage condition of the super capacitor bank module, compares the voltage condition with a set electric quantity threshold value, and is used for controlling the connection of the control module and the lithium battery control module;
the lithium battery control module is connected with the switch control module and the super capacitor bank module, and is used for receiving the electric energy output by the control module, providing the electric energy for the control module, and detecting and controlling the electric quantity to work by the switch control module.
2. The energy recovery possible parallel circuit of a super capacitor and a lithium battery as claimed in claim 1, wherein the input module comprises an input port and a first capacitor; the control module comprises a first control tube, a second control tube, a first resistor, a second resistor, a first inductor and a controller;
the first end of the input port is connected with one end of a first capacitor and a collector of the first control tube, one end of the first capacitor, the second end of the input port and an emitter of the second control end are all grounded, the controller is connected with a grid of the first control tube and a grid of the second control tube, the emitter of the first control tube and the collector of the second control tube are connected with a first end of a first inductor through a first resistor, and a second end of the first inductor is connected with the super capacitor bank module and connected with the ground end through a second resistor.
3. The parallel circuit of an energy recovery super capacitor and lithium battery as claimed in claim 2, wherein the super capacitor bank module comprises a first super capacitor, a second super capacitor; the balance adjusting module comprises a second inductor, a first diode, a second diode, a first power tube, a second inductor, a third inductor and a fourth inductor;
the first end of the first super capacitor is connected with the second end of the second inductor, the cathode of the first diode and one end of the third inductor, the second end of the first super capacitor is connected with the first end of the second super capacitor, the source electrode of the second power tube and the cathode of the second diode and is connected with the anode of the first diode and the source electrode of the first power tube through the second inductor, the second end of the second super capacitor is connected with the emitter of the second control tube and the source electrode of the first power tube and is connected with the anode of the second diode and one end of the second capacitor through the fourth inductor, the other end of the third inductor is connected with the drain of the second power tube and the other end of the second capacitor, and the grid of the first power tube and the grid of the second power tube are connected with the driving and adjusting module.
4. The parallel circuit of the super capacitor and the lithium battery capable of being recovered according to claim 3, wherein the driving regulation module comprises a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first operational amplifier, a second operational amplifier, a seventh resistor, an eighth resistor and a ninth resistor;
one end of the third resistor is connected with the first end of the first super capacitor, the other end of the third resistor is connected with the inverting end of the second operational amplifier and is connected with one end of the fifth resistor and one end of the sixth resistor through the fourth resistor, the other end of the sixth resistor is connected with the inverting end of the first operational amplifier, the inverting end of the first operational amplifier is connected with the second end of the first super capacitor and is connected with the inverting end of the second operational amplifier and one end of the ninth resistor through the eighth resistor, the other end of the ninth resistor and the output end of the second operational amplifier are both connected with the grid electrode of the first power tube, the other end of the sixth resistor is connected with the inverting end of the first operational amplifier and is connected with the output end of the first operational amplifier and the grid electrode of the second power tube through the seventh resistor, and the other end of the fifth resistor is grounded.
5. The parallel circuit of the super capacitor and the lithium battery with the possibility of energy recovery as claimed in claim 3, wherein the switch control module comprises a tenth resistor, an eleventh resistor;
and the first end of the tenth resistor is connected with the first end of the first super capacitor, and the second end of the tenth resistor is connected with the second end of the second super capacitor through an eleventh resistor.
6. The parallel circuit of the super capacitor and the lithium battery capable of being recycled according to claim 5, wherein the switch control module further comprises a first comparator, a sixteenth resistor, a seventeenth resistor, a first power supply, a third power tube, an eighteenth resistor, a power threshold and a third diode;
the inverting terminal of the first comparator is connected with the second terminal of the tenth resistor, the non-inverting terminal of the first comparator is connected with the electric quantity threshold value, the power supply end of the first operational amplifier is connected with the first power supply and is connected with the output end of the first operational amplifier and one end of the seventeenth resistor through the sixteenth resistor, the other end of the seventeenth resistor is connected with the grid of the third power tube and the lithium battery control module, the source electrode of the third power tube is also connected with the lithium battery control module, the drain electrode of the third power tube is connected with the cathode of the third diode through the eighteenth resistor, and the anode of the third diode is connected with the collector electrode of the first control terminal.
7. The energy recovery possible parallel circuit of the super capacitor and the lithium battery as claimed in claim 6, wherein the lithium battery control module comprises a third capacitor, a lithium battery pack, a twelfth resistor, a thirteenth resistor, an adapter, a fourth power tube, a fourteenth resistor, a fifteenth resistor, a fourth diode and a fuse;
one end of the third capacitor, the first end of the lithium battery pack, one end of the twelfth resistor, the anode of the fourth diode and the source electrode of the fourth power tube are all connected with the source electrode of the third power tube, the cathode of the fourth diode is connected with the collector electrode of the first control tube through a fuse, the other end of the twelfth resistor is connected with the first end of the adapter and is connected with the embedded unit of the lithium battery pack, the other end of the third capacitor and the ground end through the thirteenth resistor, the third end of the adapter is grounded, the second end of the adapter is connected with the grid electrode of the fourth power tube, the drain electrode of the fourth power tube is connected with one end of the fifteenth resistor and the grid electrode of the third power tube through the fourteenth resistor, and the other end of the fifteenth resistor is grounded.
CN202211119612.3A 2022-09-15 2022-09-15 Super capacitor and lithium battery parallel circuit capable of recycling energy Withdrawn CN115347654A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115833332A (en) * 2023-01-13 2023-03-21 深圳市百千成电子有限公司 Novel BMS battery management system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115833332A (en) * 2023-01-13 2023-03-21 深圳市百千成电子有限公司 Novel BMS battery management system

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