CN201210622Y - Electric core charging and discharging control management circuit for lithium ion or polymer battery - Google Patents
Electric core charging and discharging control management circuit for lithium ion or polymer battery Download PDFInfo
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- CN201210622Y CN201210622Y CNU2008200483026U CN200820048302U CN201210622Y CN 201210622 Y CN201210622 Y CN 201210622Y CN U2008200483026 U CNU2008200483026 U CN U2008200483026U CN 200820048302 U CN200820048302 U CN 200820048302U CN 201210622 Y CN201210622 Y CN 201210622Y
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Abstract
The utility model discloses an electrical core control management circuit of lithium ions or polymer cells, comprising more than two electrical cores, a protective circuit connected with the electrical core, a charge circuit and a SCM control circuit, the electrical core is also connected with a charging and discharging management switch circuit, which is connected with the protective circuit and the SCM control circuit, the charging and discharging management switch circuit realizes a working mode of serial discharge of a plurality of electrical cores and parallel charge. The utility model realizes switching control management of serial discharge and parallel charge of the plurality of electrical cores combining hardware circuit of simple structure through the SCM, thereby greatly reducing charging voltage of the plurality of electrical cores, saving connecting line resource of other lower voltage charge, expanding application range and with charge management function. The utility model has the advantages of complete functions, simple structure, low self-power expenditure, high reliability and low cost.
Description
Technical field
The utility model relates to lithium ion or polymer battery, and the electric core that is specifically related to a kind of lithium ion or polymer battery discharges and recharges the control and management circuit.
Background technology
Along with the progressively increase of various mobile electronic devices, some need the associated electronic device of multi-string lithium ion/polymer series-feds also progressively to increase, and particularly lithium electricity/polymer battery universal quickened this evolution.But increase along with the electric core joint number of connecting, the charging voltage that is faced with some charging adapters need improve constantly, some charger applicable scope have been narrowed down, even can't follow, the mobile device that utilizes the vehicle power low-voltage power supply system to charge in addition can face this problem equally.How to realize charging reliably to high voltage lithium electricity/polymer battery that multi-section serial forms with the power supply of low-voltage? present conventional way is to increase charging terminal simultaneously on charge power supply and power brick, and is independent of electric core charging.Such way has increased terminal, is unallowed in the system the inside of much having only two power supply ports, has increased difficulty also for simultaneously the design of protective circuit and charge power supply, and the useless resource of consumption is many on the whole, and give product day by day miniaturization bring unfavorable.
China Patent No. be ZL03243156.2 to disclose controlled rechargeable cell of a kind of connection status and assembled battery and China Patent No. be controlled rechargeable cell and the battery of the disclosed a kind of connection status of ZL03243159.7, all be the technical scheme that goes wrong for the charging that solves more piece electricity core.
China Patent No. is that the charge protector that ZL 03146990.6 discloses each electric core in a kind of lithium cell charging protective circuit battery comprises main control chip IC1 and peripheral circuit thereof; IC1 chip peripheral circuit has comprised the metal-oxide-semiconductor Q2 of on-off action; Q3; resistance R 3; R4 and capacitor C 1; the capacitor C 1 that plays balanced action is parallel to chip IC 1VSS end; on the vdd terminal; balance metal-oxide-semiconductor Q1 is connected on IC1 chip CO end and the metal-oxide-semiconductor Q3; and be connected in the electric power loop with battery battery core behind the series resistance R1; in the element loop in power supply one utmost point and the next unit loop another antipole of power supply join, so analogize.This technical scheme has just solved the technical problem of the tandem working of a plurality of single battery charge protectors.
The utility model content
The technical problem that the utility model need solve provides and a kind ofly sharedly discharges and recharges port, all electric core discharged in series that can automatically switch, the lithium ion of per two economize on electricity core charged in parallels or the electric core of polymer battery discharge and recharge the control and management circuit.
The electric core that has designed a kind of lithium ion or polymer battery according to above-mentioned purpose discharges and recharges the control and management circuit; comprise the above electric core of two joints; the protective circuit, charging circuit and the single chip machine controlling circuit that are connected with electric core; protective circuit connects with an electric core or the electric core group more than two respectively; it is characterized in that: described electric core or electric core group also connect with the management of charging and discharging commutation circuit, and described management of charging and discharging commutation circuit also connects with protective circuit and single chip machine controlling circuit.Described management of charging and discharging commutation circuit comprises the tandem tap circuit of realizing discharged in series and the parallel control loop of realizing charged in parallel, and the delay circuit that connects with tandem tap circuit and parallel control loop.
As the utility model preferred version be: described tandem tap circuit comprises metal-oxide-semiconductor N3; metal-oxide-semiconductor N5; pull-up resistor R7; resistance R 8; R9; switch delay capacitor C5 and capacitor C 6; pull-up resistor R7; switch delay capacitor C5 and resistance R 9; capacitor C 6 is formed two groups of RC delay circuits; the source electrode of metal-oxide-semiconductor N3 connects with electric core protective circuit; the drain electrode of N3 connects with the positive terminal of the electric core of another electric core group; the grid of N3 and pull-up resistor R7; the drain electrode of switch delay capacitor C5 and metal-oxide-semiconductor N5 connects; the source electrode of N5 is organized electric core protective circuit with another and is connected, and the grid connection electrical resistance R9 of N5 and capacitor C 6 also connect with the S-SWITCH control end of single chip machine controlling circuit by resistance R 8.
Described parallel control loop comprises metal-oxide-semiconductor N4, resistance R 10, R11 and capacitor C 7; the drain electrode of N4 connects with the protective circuit of one group of electricity core; the source electrode of N4 connects with another protective circuit of organizing electric core; be connected with resistance R 10 and capacitor C 7 between the grid of N4 and the source electrode, the grid of N4 connects with the P-SWITCH control end of single chip machine controlling circuit by resistance R 11.
Described single chip machine controlling circuit comprises single-chip microcomputer U3,3,5 pin of U3 connect with tandem tap circuit and parallel control loop respectively by S-SWITCH control end and P-SWITCH control end, 6 pin of U3 connect with charging circuit by the PWM end, 9,10 pin of U3 connect with ambient temperature detection circuit, 11 pin of U3 connect with the charging input voltage detection circuit by the DC_AD end, and 12 pin of U3 connect with electric core voltage detecting circuit by the BV_AD end.
Described charging input voltage detection circuit comprises triode Q4, Q6, Q7 and field effect transistor N7, resistance R 32～R37, the collector and emitter of Q4 is serially connected with in the charging major loop, the collector electrode of Q4 connects with ambient temperature detection circuit, the emitter of Q4 connects with charging end P+, the base stage of Q4 connects through the drain electrode of resistance R 33 with field effect transistor N7, the source ground of N7, the grid of N7 connects with the collector electrode of triode Q6 by resistance R 34, the emitter of Q6 connects with charging end P+ through resistance R 36, the base stage of Q6 connects with the base stage of triode Q7, and the emitter of Q7 connects with the B3+ end.
Described ambient temperature detection circuit comprises triode Q1, controllable silicon U4, thermistor NTC1, resistance R 21～R25, the collector electrode of Q1 connects with the collector electrode of Q4, the emitter of Q1 connects with an end and the single-chip microcomputer U3 of thermistor NTC1, the base stage of Q1 connects back ground connection with controllable silicon, the silicon controlled trigger electrode connects with 9 pin of single-chip microcomputer U3, and the other end of thermistor NTC1 connects with 10 pin of single-chip microcomputer U3.
Described charging circuit comprises PWM step-down charging circuit and pwm pulse adjustment circuit, PWM step-down charging circuit is made up of field effect transistor N8, N9, diode D1, inductance L 1, the pwm pulse adjustment circuit comprises triode Q2, Q3, Q5, PWM step-down charging circuit and pwm pulse adjustment circuit are existing ripe circuit, and PWM step-down charging circuit also connects with electric core voltage detecting circuit.
Described electric core voltage detecting circuit comprises field effect transistor N6, resistance R 16, capacitor C 10, the source electrode of N6 connects with 12 pin of single-chip microcomputer U3 through the BV_AD end, resistance R 16 and capacitor C 10 are formed the RC delay circuit, this RC delay circuit connects with the source electrode of N6, the drain electrode of N6 is connected on the charging circuit, and the grid of N6 connects with the DC1 end through resistance R 17.
As further improvement of the utility model be: described protective circuit comprises protection chip U1, U2, two metal-oxide-semiconductor N1, N2; protection chip U1 connects with electric core CELL1, CELL2; electricity core CELL1, CELL2 serial connection; protection chip U2 connects with electric core CELL3, CELL4; two metal-oxide-semiconductor N1 connect with the negative pole of protection chip U1 and electric core CELL2, and two metal-oxide-semiconductor N2 connect with protection chip U2 and electric core CELL4 negative pole.
The utility model compared with prior art has following remarkable result:
1, electric core of the present utility model is connected with relatively independent protective circuit separately, and the protection chip in the protective circuit and play two metal-oxide-semiconductors cooperations of on-off action is protected the overcharging of electric core, overdischarge etc.;
2, string of the present utility model and concern that commutation circuit is made up of tandem tap circuit and parallel control loop, so discharged in series and charged in parallel switch flexibility and reliability;
3, the utility model is under the prerequisite of conditional requests such as discharging and recharging of guaranteeing that all electric cores can safety, in circuit, utilize single-chip microcomputer to switch control and management with regard to attainable more piece electricity core discharged in series mutually with more piece electricity core charged in parallel in conjunction with simple hardware circuit (metal-oxide-semiconductor), can reduce the charging voltage of more piece electricity core charging significantly, saved the interconnection resources of other low pressure chargings, expanded range of application and had the characteristics of Charge Management function.
4, the utlity model has the advantage multiple functional, simple in structure, low, that reliability is high, cost is low from power consumption.
Description of drawings
Fig. 1 is a functional-block diagram of the present utility model;
Fig. 2 is embodiment one circuit diagram of the present utility model.
Embodiment
For the ease of those skilled in the art's understanding, the utility model structural principle is described in further detail below in conjunction with specific embodiment and accompanying drawing:
As shown in Figure 1, the utility model lithium ion or polymer battery electricity core management circuit functional-block diagram, this battery is made up of the above electric core of two joints, and protective circuit saves with one or one group of electric core connects, and is used to protect the super-charge super-discharge electricity of every economize on electricity core etc.This battery and protective circuit also connect with the tandem tap circuit of realizing all electric core discharged in series and realize per two parallel control loops that economize on electricity the core charged in parallels, and tandem tap circuit and parallel control loop also connect with delay circuit.Battery is realized the shared port that discharges and recharges by the end that charges and discharge in the charging circuit, and charging circuit is controlled by single chip machine controlling circuit, between charging circuit and the single chip machine controlling circuit, also is connected with charging input voltage detection circuit and ambient temperature detection circuit.Before battery and single chip machine controlling circuit, also be connected with electric core voltage detecting circuit.
Accompanying drawing 2 is the utility model embodiment one, and present embodiment is the management of charging and discharging circuit of 4 economize on electricity cores, can realize 4 economize on electricity core discharged in series and per two economize on electricity core charged in parallels.
As shown in Figure 2, a kind of lithium battery electric core control and management circuit of novel charge and discharge system, comprise the single chip machine controlling circuit of forming by single-chip microcomputer U3,3,5 pin of single-chip microcomputer U3 connect with tandem tap circuit and parallel control loop respectively by S-SWITCH control end and P-SWITCH control end, 6 pin of U3 connect with charging circuit by the PWM end, 9,10 pin of U3 connect with ambient temperature detection circuit, 11 pin of U3 connect with the charging input voltage detection circuit by the DC_AD end, and 12 pin of U3 connect with electric core voltage detecting circuit by the BV_AD end.
The electric core protective circuit of battery comprises protection chip U1, U2, two metal-oxide-semiconductor N1, N2, resistance R 1, R2, R3, R4, R5, R6, capacitor C 1, C2, C3, C4,5 pin (VDD) of protection chip U1 connect through the positive pole of resistance R 1 with electric core CELL1, electricity core CELL1, the CELL2 serial connection, at electric core CELL1, CELL2 tie point and resistance R 2,4 pin (VC) of capacitor C 2 and U1 connect, 1 (DO) of U1,2 (CO) pin respectively with 4 of two metal-oxide-semiconductor N1,5 pin connect, 2 of the negative pole of electricity core CELL2 and N1,3 pin connect, 6 of N1,3 pin of 7 pin and U1 connect with the tandem tap circuit; 5 pin (VDD) of protection chip U2 connect through the positive pole of resistance R 3 with electric core CELL3; the positive pole of electricity core CELL3 also connects with the tandem tap circuit; electricity core CELL3, CELL4 serial connection; connect with 4 pin (VC) of resistance R 4, capacitor C 4 and U2 at electric core CELL3, CELL4 tie point; 1 (DO) of U2,2 (CO) pin connect with 4,5 pin of two metal-oxide-semiconductor N2 respectively; the negative pole of electricity core CELL4 connects with 2,3 pin of N2, and 6,7 pin of N2 and 3 pin of U2 connect with tandem tap circuit, parallel control loop and delay circuit.
Described tandem tap circuit comprises metal-oxide-semiconductor N3, metal-oxide-semiconductor N5, pull-up resistor R7, resistance R 8, R9, switch delay capacitor C5 and capacitor C 6, pull-up resistor R7, switch delay capacitor C5 and resistance R 9, capacitor C 6 is formed two groups of RC delay circuits, 3 pin (VM) of the source electrode of metal-oxide-semiconductor N3 and U1,6 of two metal-oxide-semiconductor N1,7 pin connect, the drain electrode of N3 connects with the positive terminal of electric core CELL3, the grid of N3 and pull-up resistor R7, the drain electrode of switch delay capacitor C5 and metal-oxide-semiconductor N5 connects, the source electrode of N5 and 6 of two metal-oxide-semiconductor N2,7 pin connect, and the grid connection electrical resistance R9 of N5 and capacitor C 6 also connect with the S-SWITCH control end of single chip machine controlling circuit by resistance R 8.
Described parallel control loop comprises metal-oxide-semiconductor N4, resistance R 10, R11 and capacitor C 7, the drain electrode of N4 connects with 6,7 pin of two metal-oxide-semiconductor N1, the source electrode of N4 connects with 6,7 pin of two metal-oxide-semiconductor N2, be connected with resistance R 10 and capacitor C 7 between the grid of N4 and the source electrode, the grid of N4 connects with the P-SWITCH control end of single chip machine controlling circuit by resistance R 11.
Described charging input voltage detection circuit comprises triode Q4, Q6, Q7 and field effect transistor N7, resistance R 32～R37, the collector and emitter of Q4 is serially connected with in the charging major loop, the collector electrode of Q4 connects with ambient temperature detection circuit, the emitter of Q4 connects with charging end P+, the base stage of Q4 connects through the drain electrode of resistance R 33 with field effect transistor N7, the source ground of N7, the grid of N7 connects with the collector electrode of triode Q6 by resistance R 34, the emitter of Q6 connects with charging end P+ through resistance R 36, the base stage of Q6 connects with the base stage of triode Q7, and the emitter of Q7 connects with the B3+ end.
Described ambient temperature detection circuit comprises triode Q1, controllable silicon U4, thermistor NTC1, resistance R 21～R25, the collector electrode of Q1 connects with the collector electrode of Q4, the emitter of Q1 connects with an end and the single-chip microcomputer U3 of thermistor NTC1, the base stage of Q1 connects back ground connection with controllable silicon, the silicon controlled trigger electrode connects with 9 pin of single-chip microcomputer U3, and the other end of thermistor NTC1 connects with 10 pin of single-chip microcomputer U3.
Described charging circuit comprises PWM step-down charging circuit and pwm pulse adjustment circuit, PWM step-down charging circuit is made up of field effect transistor N8, N9, diode D1, inductance L 1, the pwm pulse adjustment circuit comprises triode Q2, Q3, Q5, PWM step-down charging circuit and pwm pulse adjustment circuit are existing ripe circuit, and PWM step-down charging circuit also connects with electric core voltage detecting circuit.
Described electric core voltage detecting circuit comprises field effect transistor N6, resistance R 16, capacitor C 10, the source electrode of N6 connects with 12 pin of single-chip microcomputer U3 through the BV_AD end, resistance R 16 and capacitor C 10 are formed the RC delay circuit, this RC delay circuit connects with the source electrode of N6, the drain electrode of N6 is connected on the charging circuit, and the grid of N6 connects with the DC1 end through resistance R 17.
The utility model operation principle is: when circuit under non-charged state, electric core CELL1, CELL2 can carry out 4 economize on electricity core discharged in series to external circuit by metal-oxide-semiconductor N1, N3 and electric core CELL3, CELL4 UNICOM.Under the circuit charged state, electric core CELL1, CELL2 switch to per two joints of electric core CELL3, CELL4 by metal-oxide-semiconductor N1, N4 to have the paralleling model of independent protective circuit and charges.It is that shutoff by metal-oxide-semiconductor N3 realizes electric core CELL1, CELL2 and electric core CELL3, the CELL4 series connection behind relevant independent protective circuit with opening of metal-oxide-semiconductor N4 that its connection in series-parallel relation is switched mutually; Realize electric core CELL1, CELL2 and electric core CELL3, the CELL4 parallel connection behind relevant independent protective circuit by opening of metal-oxide-semiconductor N3 with the shutoff of metal-oxide-semiconductor N4.Electricity core CELL1, CELL2 and electric core CELL3, CELL4 directly series connection respectively.Electricity core CELL1, CELL2 connect the source terminal of a pipe among the two metal-oxide-semiconductor N1 of N type through the negative pole end of electric core CELL2, be connected to the source terminal of N type metal-oxide-semiconductor N3 again through the source terminal of another pipe among the N1, save the positive terminal of electric core CELL3 then by the drain electrode end two of N3.There is the series system that control metal-oxide-semiconductor N1, N3 isolate the centre of 4 electric cores of Xing Chenging like this.Electricity core CELL1, CELL2 are connected to the extreme of diode D2 through the positive terminal of electric core CELL1, the positive terminal of electricity core CELL3 is connected to the negative terminal of diode D3, electricity core CELL1, CELL2 connect the source terminal of a pipe among the two metal-oxide-semiconductor N3 of N type through the negative pole end of electric core 2, be connected to the drain electrode end of N type metal-oxide-semiconductor N4 again through the source terminal of another pipe, the drain electrode end of N4 is connected to the negative pole end of electric core 4 through N2.What form like this often has control metal-oxide-semiconductor N1, N2, N4 (negative pole end) and the isolated parallel way of diode D2, D3 (positive terminal) in the middle of two electric cores.
The automatically switch string of electric core and the relevant time-delay mode of relation of circuit is to realize by three delay switch circuits respectively, pull-up resistor R7 and switch delay capacitor C5, resistance R 9 are formed three relatively independent RC delay circuits with capacitor C 6, resistance R 10 with capacitor C 7, and be connected to metal-oxide-semiconductor N5 by pull-up resistor R7, rise related with the delay circuit of resistance R 10 and capacitor C 7 of N5 opened, and the cooperation of three delay circuits has realized the string and the relation of the electric core of reliable automatic switchover.
At normal pure discharge process of the present utility model, single-chip microcomputer U3 quits work, and the connection in series-parallel switching controls port P-SWITCH of its control 4 economize on electricity cores and the level of S-SWITCH remain low level.Under this condition, the VGS voltage of metal-oxide-semiconductor N4, N5 is low level all, makes these two metal-oxide-semiconductors be in closed condition.This moment metal-oxide-semiconductor N3 VGS voltage by resistance R 7 by on draw and be high level, make metal-oxide-semiconductor N3 open-minded, N3 has been coupled to the positive terminal of electric core 3 by metal-oxide-semiconductor N1 and metal-oxide-semiconductor with the negative pole of electric core 2, and this has formed the mode of the coupled in series of electric core 1～4 on discharge loop.So electric core that is together in series just can carry out regular picture to external system by P+, P-realization.In discharge process, reached and put protection voltage as long as protection IC:U1 or U2 have detected any economize on electricity core, corresponding protection IC will send low level at the DO end, controls therewith that DO end associated switch MOS turn-offs, and realizes that the mistake of electric core is put defencive function.Equally, this circuit also can be realized functions such as overcurrent and short-circuit protection, has guaranteed the protection to lithium ion/polymer electricity core.
Control and management process when charging normal, P+, P-access charge power supply.Single-chip microcomputer U3 at first switches to paralleling model by control port P-SWITCH and S-SWITCH with 4 series models that economize on electricity cores, and keeps this parallel way in whole charging process.Concrete switching mode is as follows: after inserting charge power supply, single-chip microcomputer is started working, export high level by S-SWITCH earlier, be coupled to the grid of metal-oxide-semiconductor N5 through resistance R 8, metal-oxide-semiconductor N5 is open-minded under the condition of high level at VGS voltage, with the VGS voltage of metal-oxide-semiconductor N3 drop-down be low level, metal-oxide-semiconductor N3 transfers off state to by opening state, thereby has cut off electric core 1,2 by metal-oxide-semiconductor N3 and electric core 3,4 series relationship that form.Switching and the resistance R 9 and capacitor C 6 formed RC time-delays of dual MOS have been experienced therebetween.Cut off the series relationship of 4 economize on electricity cores, single-chip microcomputer is by P-SWITCH control port output high level then, be coupled to the grid of metal-oxide-semiconductor N4 through resistance R 11, metal-oxide-semiconductor N4 is open-minded under the condition of high level at VGS voltage, the negative pole end of electricity core 2, by the conducting of metal-oxide-semiconductor N1 and metal-oxide-semiconductor N3, be connected to the source electrode of the charging metal-oxide-semiconductor of metal-oxide-semiconductor N2.Realized that electric core 1,2 is that one group and electric core 3,4 are that two groups of electricity cores of one group are by the parallel connection after the protective circuit.Then, single-chip microcomputer is finished detection to charging input voltage, ambient temperature, two groups of electricity core voltages by DC_AD, TH_AD, BV_AD port respectively.If allow charge condition complete, single-chip microcomputer is by the buffering of PWM port through transistor Q1, and the totem drive circuit that control is made up of transistor Q2, Q3 removes driving switch metal-oxide-semiconductor N8.Through metal-oxide-semiconductor N8 and inductance L 1, the buck output that diode D4 etc. form is passed through diode D2, D3 from inductance L 1 and is carried out the charging of constant current and constant voltage to the electric core group be made up of electric core 1,2 with by the electric core group that electric core 3,4 is formed respectively.
The utility model sees on the whole, and the protection part is mainly by two protections IC:U1, U2, and U1, U2 are responsible for the overcharging of the electric core 1 of protection, electric core 2 and electric core 3, electric core 4, overdischarge, overcurrent and short-circuit protection respectively.Metal-oxide-semiconductor N1, N2 play major loop switch control action.Under the prerequisite of conditional requests such as discharging and recharging of guaranteeing that all electric cores can safety, increase a spot of components and parts at its external circuit again just can realize four economize on electricity core discharged in series the automatic switching function that two economize on electricity cores charge.This connecting mode is simple and easy reliable, and cost is low.
Any according to design of the present utility model, no matter be to comprise the Charge Management function or do not comprise the charging valve function or increase the joint number of electric core, all within protection range of the present utility model.
Claims (10)
1, the electric core of a kind of lithium ion or polymer battery discharges and recharges the control and management circuit; comprise the above electric core of two joints; the protective circuit, charging circuit and the single chip machine controlling circuit that are connected with electric core; protective circuit connects with an electric core or the electric core group more than two respectively; it is characterized in that: described electric core or electric core group also connect with the management of charging and discharging commutation circuit, and described management of charging and discharging commutation circuit also connects with protective circuit and single chip machine controlling circuit.
2, the electric core of lithium ion according to claim 1 or polymer battery discharges and recharges the control and management circuit, it is characterized in that: described management of charging and discharging commutation circuit comprises the tandem tap circuit of realizing discharged in series and the parallel control loop of realizing charged in parallel, and the delay circuit that connects with tandem tap circuit and parallel control loop.
3; the electric core of lithium ion according to claim 2 or polymer battery discharges and recharges the control and management circuit; it is characterized in that: described tandem tap circuit comprises metal-oxide-semiconductor N3; metal-oxide-semiconductor N5; pull-up resistor R7; resistance R 8; R9; switch delay capacitor C5 and capacitor C 6; pull-up resistor R7; switch delay capacitor C5 and resistance R 9; capacitor C 6 is formed two groups of RC delay circuits; the source electrode of metal-oxide-semiconductor N3 connects with electric core protective circuit; the drain electrode of N3 connects with the positive terminal of the electric core of another electric core group; the grid of N3 and pull-up resistor R7; the drain electrode of switch delay capacitor C5 and metal-oxide-semiconductor N5 connects; the source electrode of N5 is organized electric core protective circuit with another and is connected, and the grid connection electrical resistance R9 of N5 and capacitor C 6 also connect with the S-SWITCH control end of single chip machine controlling circuit by resistance R 8.
4, the electric core according to claim 2 or 3 described lithium ions or polymer battery discharges and recharges the control and management circuit; it is characterized in that: described parallel control loop comprises metal-oxide-semiconductor N4, resistance R 10, R11 and capacitor C 7; the drain electrode of N4 connects with the protective circuit of one group of electricity core; the source electrode of N4 connects with another protective circuit of organizing electric core; be connected with resistance R 10 and capacitor C 7 between the grid of N4 and the source electrode, the grid of N4 connects with the P-SWITCH control end of single chip machine controlling circuit by resistance R 11.
5, the electric core of lithium ion according to claim 4 or polymer battery discharges and recharges the control and management circuit, it is characterized in that: described single chip machine controlling circuit comprises single-chip microcomputer U3,3 of U3,5 pin connect with tandem tap circuit and parallel control loop respectively by S-SWITCH control end and P-SWITCH control end, 6 pin of U3 connect with charging circuit by the PWM end, 9 of U3,10 pin connect with ambient temperature detection circuit, 11 pin of U3 connect with the charging input voltage detection circuit by the DC_AD end, and 12 pin of U3 connect with electric core voltage detecting circuit by the BV_AD end.
6, the electric core of lithium ion according to claim 5 or polymer battery discharges and recharges the control and management circuit, it is characterized in that: described charging input voltage detection circuit comprises triode Q4, Q6, Q7 and field effect transistor N7, resistance R 32～R37, the collector and emitter of Q4 is serially connected with in the charging major loop, the collector electrode of Q4 connects with ambient temperature detection circuit, the emitter of Q4 connects with charging end P+, the base stage of Q4 connects through the drain electrode of resistance R 33 with field effect transistor N7, the source ground of N7, the grid of N7 connects with the collector electrode of triode Q6 by resistance R 34, the emitter of Q6 connects with charging end P+ through resistance R 36, the base stage of Q6 connects with the base stage of triode Q7, and the emitter of Q7 connects with the B3+ end.
7, the electric core of lithium ion according to claim 6 or polymer battery discharges and recharges the control and management circuit, it is characterized in that: described ambient temperature detection circuit comprises triode Q1, controllable silicon U4, thermistor NTC1, resistance R 21～R25, the collector electrode of Q1 connects with the collector electrode of Q4, the emitter of Q1 connects with an end and the single-chip microcomputer U3 of thermistor NTC1, the base stage of Q1 connects back ground connection with controllable silicon, the silicon controlled trigger electrode connects with 9 pin of single-chip microcomputer U3, and the other end of thermistor NTC1 connects with 10 pin of single-chip microcomputer U3.
8, the electric core of lithium ion according to claim 5 or polymer battery discharges and recharges the control and management circuit, it is characterized in that: described charging circuit comprises PWM step-down charging circuit and pwm pulse adjustment circuit, PWM step-down charging circuit is made up of field effect transistor N8, N9, diode D1, inductance L 1, the pwm pulse adjustment circuit comprises triode Q2, Q3, Q5, PWM step-down charging circuit and pwm pulse adjustment circuit are existing ripe circuit, and PWM step-down charging circuit also connects with electric core voltage detecting circuit.
9, the electric core of lithium ion according to claim 8 or polymer battery discharges and recharges the control and management circuit, it is characterized in that: described electric core voltage detecting circuit comprises field effect transistor N6, resistance R 16, capacitor C 10, the source electrode of N6 connects with 12 pin of single-chip microcomputer U3 through the BV_AD end, resistance R 16 and capacitor C 10 are formed the RC delay circuit, this RC delay circuit connects with the source electrode of N6, the drain electrode of N6 is connected on the charging circuit, and the grid of N6 connects with the DC1 end through resistance R 17.
10, the electric core of lithium ion according to claim 4 or polymer battery discharges and recharges the control and management circuit; it is characterized in that: described protective circuit comprises protection chip U1, U2, two metal-oxide-semiconductor N1, N2; protection chip U1 connects with electric core CELL1, CELL2; electricity core CELL1, CELL2 serial connection; protection chip U2 connects with electric core CELL3, CELL4; two metal-oxide-semiconductor N1 connect with the negative pole of protection chip U1 and electric core CELL2, and two metal-oxide-semiconductor N2 connect with protection chip U2 and electric core CELL4 negative pole.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008200483026U CN201210622Y (en) | 2008-05-21 | 2008-05-21 | Electric core charging and discharging control management circuit for lithium ion or polymer battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008200483026U CN201210622Y (en) | 2008-05-21 | 2008-05-21 | Electric core charging and discharging control management circuit for lithium ion or polymer battery |
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| CN201210622Y true CN201210622Y (en) | 2009-03-18 |
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| CNU2008200483026U Expired - Fee Related CN201210622Y (en) | 2008-05-21 | 2008-05-21 | Electric core charging and discharging control management circuit for lithium ion or polymer battery |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777674A (en) * | 2010-03-04 | 2010-07-14 | 飞毛腿(福建)电子有限公司 | High-capacity lithium-ion battery backup state managing method |
| CN102237693A (en) * | 2010-04-20 | 2011-11-09 | 赵杰 | Intelligent charging-discharging management system for power battery pack |
| CN102709979A (en) * | 2012-06-07 | 2012-10-03 | 朱泽州 | Integrated autonomous control system for power battery |
| CN103236832A (en) * | 2013-05-06 | 2013-08-07 | 艾何示 | Logic timing control circuit and parallel charging and serial discharging control circuit |
| CN103427121A (en) * | 2012-05-23 | 2013-12-04 | 固纬电子实业股份有限公司 | Battery pack |
| CN103426226A (en) * | 2012-05-23 | 2013-12-04 | 路华科技(深圳)有限公司 | Portable multifunctional ballot box |
| CN104023180A (en) * | 2014-04-14 | 2014-09-03 | 华为技术有限公司 | Camera, and illumination control circuit and infrared lamp control method thereof |
| CN104184127A (en) * | 2013-05-24 | 2014-12-03 | 鸿富锦精密工业（深圳）有限公司 | Battery protection circuit |
| CN104218541A (en) * | 2014-08-07 | 2014-12-17 | 杭州天丰电源股份有限公司 | Lithium iron phosphate startup battery total-voltage protector with short-circuit protection function |
| CN104617634A (en) * | 2015-02-26 | 2015-05-13 | 青岛歌尔声学科技有限公司 | Charge-discharge circuit and power bank |
| WO2016090763A1 (en) * | 2014-12-09 | 2016-06-16 | 中兴通讯股份有限公司 | Terminal device battery and method for control of charge and discharge thereof |
| CN106549469A (en) * | 2017-01-24 | 2017-03-29 | 广州魔思信息科技有限公司 | A kind of lithium battery charged in parallel is used in series circuit structure |
| CN106648011A (en) * | 2016-12-28 | 2017-05-10 | 长沙理工大学 | Power supply management device for computer equipment in vehicle-mounted electronic system |
| CN108235453A (en) * | 2017-12-19 | 2018-06-29 | 苏州来福易材料科技有限公司 | A kind of electrothermal device instantaneous power intensifier and its control method |
| CN109245188A (en) * | 2017-07-10 | 2019-01-18 | 深圳市爱克斯达电子有限公司 | A kind of charging unit and the discharge source path management method when filling |
| CN112186864A (en) * | 2020-12-02 | 2021-01-05 | 山东华全动力股份有限公司 | Lithium battery management system |
| CN112886684A (en) * | 2021-03-25 | 2021-06-01 | 深圳市迪浦电子有限公司 | Multi-lithium battery charging and discharging management circuit and system |
-
2008
- 2008-05-21 CN CNU2008200483026U patent/CN201210622Y/en not_active Expired - Fee Related
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777674B (en) * | 2010-03-04 | 2012-07-18 | 飞毛腿(福建)电子有限公司 | High-capacity lithium-ion battery backup state managing method |
| CN101777674A (en) * | 2010-03-04 | 2010-07-14 | 飞毛腿(福建)电子有限公司 | High-capacity lithium-ion battery backup state managing method |
| CN102237693A (en) * | 2010-04-20 | 2011-11-09 | 赵杰 | Intelligent charging-discharging management system for power battery pack |
| CN102237693B (en) * | 2010-04-20 | 2013-10-02 | 赵杰 | Intelligent charging-discharging management system for power battery pack |
| CN103427121A (en) * | 2012-05-23 | 2013-12-04 | 固纬电子实业股份有限公司 | Battery pack |
| CN103426226A (en) * | 2012-05-23 | 2013-12-04 | 路华科技(深圳)有限公司 | Portable multifunctional ballot box |
| CN102709979B (en) * | 2012-06-07 | 2014-06-25 | 朱泽州 | Integrated autonomous control system for power battery |
| CN102709979A (en) * | 2012-06-07 | 2012-10-03 | 朱泽州 | Integrated autonomous control system for power battery |
| CN103236832A (en) * | 2013-05-06 | 2013-08-07 | 艾何示 | Logic timing control circuit and parallel charging and serial discharging control circuit |
| CN103236832B (en) * | 2013-05-06 | 2015-08-12 | 艾何示 | The control circuit of logical-sequential control circuit and charged in parallel discharged in series |
| CN104184127A (en) * | 2013-05-24 | 2014-12-03 | 鸿富锦精密工业（深圳）有限公司 | Battery protection circuit |
| CN104184127B (en) * | 2013-05-24 | 2018-09-11 | 鸿富锦精密工业（深圳）有限公司 | Battery protecting circuit |
| CN104023180A (en) * | 2014-04-14 | 2014-09-03 | 华为技术有限公司 | Camera, and illumination control circuit and infrared lamp control method thereof |
| CN104023180B (en) * | 2014-04-14 | 2017-07-14 | 华为技术有限公司 | Video camera illumination control circuit, infrared lamp control method and associated camera |
| CN104218541A (en) * | 2014-08-07 | 2014-12-17 | 杭州天丰电源股份有限公司 | Lithium iron phosphate startup battery total-voltage protector with short-circuit protection function |
| CN104218541B (en) * | 2014-08-07 | 2017-03-29 | 杭州天丰电源股份有限公司 | LiFePO4 with short-circuit protection function starts battery stagnation pressure protection device |
| WO2016090763A1 (en) * | 2014-12-09 | 2016-06-16 | 中兴通讯股份有限公司 | Terminal device battery and method for control of charge and discharge thereof |
| CN104617634A (en) * | 2015-02-26 | 2015-05-13 | 青岛歌尔声学科技有限公司 | Charge-discharge circuit and power bank |
| CN106648011A (en) * | 2016-12-28 | 2017-05-10 | 长沙理工大学 | Power supply management device for computer equipment in vehicle-mounted electronic system |
| CN106648011B (en) * | 2016-12-28 | 2019-03-26 | 长沙理工大学 | A kind of electric power controller for computer equipment in in-vehicle electronic system |
| CN106549469A (en) * | 2017-01-24 | 2017-03-29 | 广州魔思信息科技有限公司 | A kind of lithium battery charged in parallel is used in series circuit structure |
| CN106549469B (en) * | 2017-01-24 | 2023-09-15 | 广州魔思信息科技有限公司 | Parallel charging and serial connection using circuit structure for lithium batteries |
| CN109245188A (en) * | 2017-07-10 | 2019-01-18 | 深圳市爱克斯达电子有限公司 | A kind of charging unit and the discharge source path management method when filling |
| CN109245188B (en) * | 2017-07-10 | 2024-01-19 | 深圳市爱克斯达电子有限公司 | Charging device and charging and discharging source path management method |
| CN108235453A (en) * | 2017-12-19 | 2018-06-29 | 苏州来福易材料科技有限公司 | A kind of electrothermal device instantaneous power intensifier and its control method |
| CN112186864A (en) * | 2020-12-02 | 2021-01-05 | 山东华全动力股份有限公司 | Lithium battery management system |
| CN112886684A (en) * | 2021-03-25 | 2021-06-01 | 深圳市迪浦电子有限公司 | Multi-lithium battery charging and discharging management circuit and system |
| CN112886684B (en) * | 2021-03-25 | 2023-10-27 | 深圳市迪浦电子有限公司 | Charging and discharging management circuit and system for multiple lithium batteries |
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