CN109245595A - Synchronous rectification reducing two-way translation circuit and intelligent battery - Google Patents
Synchronous rectification reducing two-way translation circuit and intelligent battery Download PDFInfo
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- CN109245595A CN109245595A CN201811365749.0A CN201811365749A CN109245595A CN 109245595 A CN109245595 A CN 109245595A CN 201811365749 A CN201811365749 A CN 201811365749A CN 109245595 A CN109245595 A CN 109245595A
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- synchronous rectification
- control chip
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 66
- 238000007600 charging Methods 0.000 claims abstract description 26
- 230000006837 decompression Effects 0.000 claims abstract description 21
- 230000005611 electricity Effects 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003909 pattern recognition Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
- H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
- H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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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
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
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- H02J7/027—
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- H02J7/045—
Abstract
The present invention relates to battery technology fields, specifically provide a kind of synchronous rectification reducing two-way translation circuit and intelligent battery, the synchronous rectification reducing two-way translation circuit includes first port, second port, third port, and protection circuit, H bridge type circuit and intelligent control chip, the protection circuit can under the control of intelligent control chip on or off, realize the charge and discharge protecting to rechargeable battery, the H bridge type circuit is used under the control of intelligent control chip to the output voltage of rechargeable battery, or charging voltage carries out decompression processing, it may be implemented for the output voltage of rechargeable battery to be depressured by synchronous rectification reducing two-way translation circuit, external voltage can also be depressured and think that rechargeable battery charges, it can be realized dual output and the twin voltage input of rechargeable battery, rechargeable battery is widened Usage scenario.
Description
Technical field
The present invention relates to battery technology fields, in particular to a kind of synchronous rectification reducing two-way translation circuit and intelligence
It can battery.
Background technique
Battery is widely used in the products such as various digital products, living electric apparatus, instrument and meter and toy, as people are raw
The flat raising of running water, it is also more and more using the number amount and type of battery.In many application models, battery needs pass through charging
Device or cradle charge, and most basic and most important requirement is the person and property safety for ensureing user.With
The increase of battery material and voltage type, the security risk in battery charging process sharply increases, such as dry cell, ni-mh, nickel
Cadmium and Novel blood pressure-reducing battery, it is identical in electrode arrangement in overall dimensions since general requirment executes same standard,
If loading the dry cell or ni-mh, nickel-cadmium cell of low-voltage system in the charger of high voltage output, it will cause to charge
Pressure and overcurrent cause battery and charging equipment damage or even burn to cause fire or generate the threat to life properties such as explosion
The serious consequence of safety.
How to avoid above-mentioned security risk, it is impossible to place hope on the not wrongly installed battery of user because for carelessness or other people
Have little understanding, the situation of this misloading may occur with no small probability, this requires must technically be taken precautions against.
Existing the relevant technologies are intelligent charger or digitlization battery system.But existing intelligent charger or digitlization battery system
Function is simultaneously not perfect, does not adapt to the use under a variety of situations.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of synchronous rectification reducing two-way translation circuit and intelligent battery,
To improve above-mentioned problem.
The technical solution adopted by the invention is as follows:
The present invention provides a kind of synchronous rectification reducing two-way translation circuit, the synchronous rectification reducing two-way translation circuit
Including intelligent control chip, protection circuit, H bridge type circuit, first port and second port and third port；The first end
Mouth is for being electrically connected with the battery to provide input power for the synchronous rectification reducing two-way translation circuit；The protection circuit
It is set between the first port and second port, is electrically connected with the intelligent control chip, and in the intelligent control
It is used to provide charge and discharge protecting for the synchronous rectification reducing two-way translation circuit under the control of chip；The H bridge type circuit connects
It connects between the protection circuit and the third port, is electrically connected with the intelligent control chip, the third port is used
In connection external equipment, when connecting external equipment is electrical equipment, control of the H bridge type circuit in the intelligent control chip
The output voltage of third port is depressured under system, when connecting external equipment is power supply unit, the H bridge type circuit is in institute
It states and the input voltage of third port is depressured under the control of intelligent control chip.
Further, the protection circuit includes first switch tube and second switch, the source electrode of the first switch tube
It being electrically connected with the first port, the drain electrode of the first switch tube connect with the source electrode of the second switch, and described the
The source electrode of two switching tubes and the second port are electrically connected, the grid difference of the first switch tube and the second switch
It is connect with the port I/O of the intelligent control chip, with the on or off under the control of the intelligent control chip, in institute
It states when rechargeable battery enters charged state or discharge condition and overcurrent and overvoltage protection is provided.
Further, the H bridge type circuit includes third switching tube, the 4th switching tube, the 5th switching tube, the 6th switching tube
And inductance, the third switching tube are connected with the 4th switching tube, the third switching tube, the 4th switching tube, the 5th switching tube,
The grid of 6th switching tube is electrically connected with the intelligent control chip, to be connected under the control of the intelligent control chip
Or shutdown, the source electrode of the third switching tube are connect with the second port, the drain electrode and the third of the 4th switching tube
The drain electrode of switching tube is electrically connected, and the source electrode of the 5th switching tube is connect with the third port, the 6th switching tube
Drain electrode is connect with the drain electrode of the 5th switching tube, and one end of the inductance is connect with the drain electrode of the third switching tube, another
End is connect with the drain electrode of the 5th switching tube, and the third switching tube and the 4th switching tube are used in intelligent control chip
Control under decompression processing carried out to the output of rechargeable battery, the 5th switching tube and the 6th switching tube are used for can
The input of rechargeable battery charging carries out decompression processing.
Further, when the voltage value that first feedback pin detects the third port is greater than the first preset value,
The intelligent control chip control synchronous rectification reducing two-way translation circuit enters charge mode and is set with connecting external power supply
It is standby to charge for the rechargeable battery.
Further, first preset value is 4.3V.
Further, the synchronous rectification reducing two-way translation circuit further includes indicating lamp module, the indicating lamp module
It is connect with the intelligent control chip, for showing the difference of rechargeable battery with light under intelligent control chip control
State.
Further, the synchronous rectification reducing two-way translation circuit further includes touch switch key, the touch switch
Key is connect with the intelligent control chip, for responding the touch control operation of user with control the indicating lamp module opening or
It closes.
Further, the synchronous rectification reducing two-way translation circuit further includes temperature management module, the temperature management
Module is connect with the intelligent control chip, and the temperature management module is used to detect the temperature of rechargeable battery, and will test
To temperature value be sent to intelligent control chip, the intelligent control chip makes described when the temperature detected is higher than preset value
Synchronous rectification reducing two-way translation circuit enters protected mode.
A kind of intelligent battery, the intelligent battery include rechargeable battery and synchronous rectification reducing two-way translation circuit,
The synchronous rectification reducing two-way translation circuit is used to assist the charge and discharge of rechargeable battery, and the synchronous rectification reducing two-way becomes
Changing circuit includes intelligent control chip, protection circuit, H bridge type circuit, first port and second port and third port；It is described
First port is for being electrically connected with the battery to provide input power for the synchronous rectification reducing two-way translation circuit；The guarantor
Protection circuit is set between the first port and second port, is electrically connected with the intelligent control chip, and in the intelligence
It can control and be used to provide charge and discharge protecting for the synchronous rectification reducing two-way translation circuit under the control of chip；The H bridge type
It is electrically connected between the protection circuit and the third port, is electrically connected with the intelligent control chip, the third
Port is for connecting external equipment, and when connecting external equipment is electrical equipment, the H bridge type circuit is in the intelligent control core
The output voltage of third port is depressured under the control of piece, when connecting external equipment is power supply unit, the H bridge type electricity
Road is depressured the input voltage of third port under the control of the intelligent control chip, the anode of the rechargeable battery
It is connect with the first port, the cathode ground connection of the rechargeable battery.
Further, the rechargeable battery is lithium battery.
Compared with the prior art, the invention has the following advantages:
A kind of synchronous rectification reducing two-way translation circuit and intelligent battery provided by the invention, the synchronous rectification decompression are double
It include first port, second port, third port, and protection circuit, H bridge type circuit and intelligent control core to translation circuit
Piece, the protection circuit can on or off, charge and discharge of the realization to rechargeable battery under the control of intelligent control chip
Protection, the H bridge type circuit are used under the control of intelligent control chip to the output voltage of rechargeable battery or charging voltage
Decompression processing is carried out, may be implemented to drop the output voltage of rechargeable battery by synchronous rectification reducing two-way translation circuit
External voltage can also be depressured and think that rechargeable battery charges by pressure, can be realized the dual output of rechargeable battery and double
Voltage input has widened the usage scenario of rechargeable battery.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.Therefore, below to the reality of the invention provided in the accompanying drawings
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Fig. 1 shows a kind of synchronous rectification reducing two-way translation circuit schematic diagram provided by the present invention.
Fig. 2 shows the circuit module schematic diagrames of synchronous rectification reducing two-way translation circuit.
Fig. 3 shows the connection schematic diagram of protection circuit.
Fig. 4 shows intelligent battery schematic diagram.
Icon: 100- synchronous rectification reducing two-way translation circuit；110- intelligent control chip；120- protects circuit；130-H
Bridge circuit；140- first port；150- second port；160- third port；Q1- first switch tube；Q2- second switch；
Q3- third switching tube；The 4th switching tube of Q4-；The 5th switching tube of Q5-；The 6th switching tube of Q6-；170- indicating lamp module；180- touching
Control switch key；190- temperature management module；200- intelligent battery；210- rechargeable battery.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the instruction such as term " on ", "lower", "left", "right", "inner", "outside"
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when usually put
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, rather than the synchronization of indication or suggestion meaning
Rectification reducing two-way translation circuit or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is interpreted as limitation of the present invention.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements.
In the description of the present invention, it is also necessary to explanation, herein, such as first and second or the like relationship art
Language is only used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying this
There are any actual relationship or orders between a little entities or operation.The terms "include", "comprise" or its it is any its
He is intended to non-exclusive inclusion by variant, so that the process, method, article or equipment including a series of elements is not
Only include those elements, but also including other elements that are not explicitly listed, or further include for this process, method,
Article or the intrinsic element of equipment.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in the process, method, article or apparatus that includes the element.For
For those skilled in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
With reference to the accompanying drawing, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
First embodiment
The embodiment of the invention provides a kind of synchronous rectification reducing two-way translation circuits 100, please refer to Fig. 1 and Fig. 2, Fig. 1
With Fig. 2 shows a kind of schematic block diagrams of synchronous rectification reducing two-way translation circuit 100 provided in an embodiment of the present invention.It synchronizes whole
Reducing two-way translation circuit 100 is flowed to be used to carry out two-way transformation processing to electric signal, in this present embodiment, the synchronous rectification drop
Pressure two-way changing circuit 100 can be used for assisting 210 charge and discharge of rechargeable battery, carry out to the charge and discharge of rechargeable battery 210
Protection, but not limited to this.
Synchronous rectification reducing two-way translation circuit 100 includes intelligent control chip 110, protection circuit 120, H bridge type circuit
130, first port 140, second port 150 and third port 160.
The first port 140 is used to think that the synchronous rectification reducing two-way becomes with the electric connection of rechargeable battery 210
It changes circuit 100 and input power is provided；The protection circuit 120 is set between the first port 140 and second port 150,
It is also electrically connected with the intelligent control chip 110, the H bridge type circuit 130 is connected to the protection circuit 120 and described the
It between three ports 160, is also electrically connected with the intelligent control chip 110, the third port 160 is set for connecting outside
Standby, the external equipment can be electrical equipment or power supply unit.
Referring to Fig. 3, the protection circuit 120 includes first switch tube Q1 and second switch Q2, the first switch
The source electrode of pipe Q1 and the first port 140 are electrically connected, the drain electrode of the first switch tube Q1 and the second switch Q2
Source electrode connection, the source electrode of the second switch Q2 and the second port 150 be electrically connected, the first switch tube Q1 and
The grid of the second switch Q2 is connect with the port I/O of the intelligent control chip 110 respectively, in the intelligent control
On or off under the control of chip 110.
The H bridge type circuit 130 includes third switching tube Q3, the 4th switching tube Q4, the 5th switching tube Q5, the 6th switching tube
Q6 and inductance L, the third switching tube Q3 connect with the 4th switching tube Q4, the third switching tube Q3, the 4th switching tube Q4,
5th switching tube Q5, the 6th switching tube Q6 grid with the intelligent control chip 110 be electrically connected, with it is described intelligence control
The source electrode of on or off under the control of coremaking piece 110, the third switching tube Q3 is connect with the second port 150, described
The drain electrode of 4th switching tube Q4 is electrically connected with the drain electrode of the third switching tube Q3, the source electrode of the 5th switching tube Q5 and institute
The connection of third port 160 is stated, the drain electrode of the 6th switching tube Q6 is connect with the drain electrode of the 5th switching tube Q5, the inductance
The drain electrode of one end of L and the third switching tube Q3 are electrically connected, and the drain electrode of the other end and the 5th switching tube Q5 electrically connects
It connects, the third switching tube Q3 and the 4th switching tube Q4 are used under the control of intelligent control chip 110 to chargeable electricity
The output in pond 210 carries out decompression processing, the 5th switching tube and the 6th switching tube Q6 for filling to rechargeable battery 210
The input of electricity carries out decompression processing.
The intelligent control chip 110 includes multiple pins, for example, feedback pin, enabled pin, I O pin etc..Instead
Feedback signal is sent to intelligent control chip 110, intelligent control chip 110 is according to anti-for obtaining feedback signal by feedback pin
Feedback signal performs corresponding processing.For example, intelligent control chip 110 in the present embodiment includes the first feedback pin FB1, first
Feedback pin FB1 is used to detect the voltage value of third port 160, and is sent to intelligent control chip as feedback signal
110.In this present embodiment, the first feedback pin FB1, can be used for being depressured feedback, pattern-recognition and auxiliary power supply.When
Intelligent control chip 110 controls the synchronous rectification reducing two-way and becomes when the voltage value of third port 160 is greater than the first preset value
Circuit 100 is changed into charged state, intelligent control chip 110 is controlled when the voltage value of third port 160 is less than the first preset value
It makes the synchronous rectification reducing two-way translation circuit 100 and enters decompression state.
In this present embodiment, first preset value is 4.3V.
When the voltage value of the third port 160 is less than 4.3V, intelligent control chip 110 controls the synchronous rectification drop
Press two-way changing circuit 100 to enter decompression mode, intelligent control chip 110 controls the protection circuit 120 and is connected, make described in can
Rechargeable battery 210 can export electric signal, and the electric signal that rechargeable battery 210 exports is transmitted to institute through the protection circuit 120
H bridge type circuit 130 is stated, in buck mode, third switching tube Q3 and the 4th switching tube Q4 are to switch upper down tube, and the 5th opens
Pipe Q5 normal open, the 6th switching tube Q6 normal off are closed, the third port 160 is connected with first capacitor C1, the intelligent control chip
The 110 controls third switching tube Q3 and the 4th switching tube Q4 interval are connected, to charge at the both ends of first capacitor C1, when described
When intelligent control chip 110 controls the third switching tube Q3 and the 4th switching tube Q4 interval shutdown, the first capacitor
The electric energy of C1 storage discharges, thus defeated through third port 160 after the voltage that rechargeable battery 210 exports is depressured
Out.In this present embodiment, the intelligent control chip 110 controls the third switching tube Q3 and the 4th switching tube Q4 interval
On or off makes 160 output voltage of third port be maintained at the first voltage value, in this present embodiment, first electricity
Pressure value is 1.5V, but not limited to this.
It is of the invention in the remaining embodiments, the rechargeable battery 210 can also be directly through the protection circuit 120, institute
The voltage that second port 150 exports second voltage value is stated, the second voltage value is the nominal voltage of the rechargeable battery, one
As, it is 3.7V, but not limited to this.
When the voltage value of the third port 160 is greater than 4.3V, intelligent control chip 110 controls the synchronous rectification drop
Two-way changing circuit 100 is pressed to enter charge mode, connection external power supply equipment is that the rechargeable battery 210 charges.
Generally, the charging voltage of rechargeable battery 210 is not greater than 4.5V, in this present embodiment, is preferably set to
4.2V~4.35V such as can damage the battery core of battery when charging voltage is greater than 4.5V when 5V.Therefore, provided in this embodiment same
Step rectification reducing two-way translation circuit 100 is used for when the power supply unit voltage that rechargeable battery 210 connects is greater than 4.5V to institute
It states charging voltage to be depressured, safely be charged with realizing.
Similar to decompression mode, the decompression under charge mode mainly has the completion of H bridge type circuit 130.It is different from decompression mode
Place is, when the synchronous rectification reducing two-way translation circuit 100 is in charge mode, decompression by the 4th switching tube Q4,
5th switching tube Q5 is completed.The voltage that the power supply unit provides is depressured through the H bridge type circuit 130, by the guarantor
Protection circuit 120 is input to the rechargeable battery 210 and charges.
It should be noted that in charging mode, under the control of the intelligent control chip 110, the protection circuit
120 conducting direction is opposite with the conducting direction of protection circuit 120 in buck mode.
In charging mode, the 5th switching tube Q5 and the 6th switching tube Q6 is to switch upper down tube, the third
Switching tube Q3 normal open, the 4th switching tube Q4 cut-off.The second port 150 is by connection the second capacitor C2 ground connection, with flat
Charging voltage after the sliding decompression of H bridge type circuit 130.
The intelligent control chip 110 further includes the second feedback pin FB2, the second feedback pin FB2 and the second end
Mouth 150 connects, for acquiring charging voltage when being charged as feedback signal so that 110 basis of the intelligent control chip
The make-and-break time of feedback signal adjustment the 5th switching tube Q5 and the 6th switching tube Q6 is so that the charging voltage is maintained at conjunction
It manages in range.
In this present embodiment, the switching tube can be metal-oxide-semiconductor.
For example, intelligent control chip 110 passes through the end I/O using preliminary filling-constant current-constant pressure charging modes when charge mode
The battery core voltage value of mouth acquisition rechargeable battery 210 judges charging current according to the current value for flowing through the protection circuit 120
The size of value.When battery core voltage value is less than 2.9V, into charging stage, it is pre-charged with 1/10 charging current,
When battery core voltage is greater than 2.9V, into constant-current charging phase, intelligent control chip 110 controls H bridge type circuit 130 and charges
The adjustment of voltage is so that charging current is maintained at steady state.When battery core voltage reaches 4.5V, switch to constant voltage charging phase, protects
The constant of charging voltage is held, charging current persistently reduces.
During the charging process, the size of charging current can be set by the RST pin of intelligent control chip 110, Ke Yi
RST pin connects a resistance, changes the size of current of RST leads ends by changing the resistance value of the resistance.
The synchronous rectification reducing two-way translation circuit 100 further includes indicating lamp module 170, the indicating lamp module 170
It is connect with the intelligent control chip 110, for showing rechargeable battery under the intelligent control chip 110 control with light
Different conditions.The indicating lamp module 170 can be LED etc., and when the electricity of battery is full, LED light is always on, when battery exports
When abnormal, LED light is glittering.
In this present embodiment, the synchronous rectification reducing two-way translation circuit 100 further includes touch switch key 180, institute
It states touch switch key 180 to connect with the intelligent control chip 110, for responding the touch control operation of user to control the finger
Show opening or closing for lamp module 170.For example, user presses touch switch key 180, intelligent control chip 110 controls described
Indicating lamp module 170 starts, to show battery status.
The synchronous rectification reducing two-way translation circuit 100 further includes temperature management module 190, the temperature management module
190 connect with the intelligent control chip 110, and the temperature management module 190 is used to detect the temperature of rechargeable battery 210,
And the temperature value that will test is sent to the intelligent control chip 110, the intelligent control chip is higher than in the temperature value
The synchronous rectification reducing two-way translation circuit is set to enter protected mode when preset value.
For example, into one stage of excess temperature, intelligent control chip 110 is limited and is turned down when temperature is greater than the first temperature value
Switching tube on-state duty ratio limits the output electric current of rechargeable battery 210 and output power.
When temperature is greater than second temperature value, intelligent control chip 110 controls the switching tube of cut-off protection circuit 120, stops
Only externally output, to protect rechargeable battery 210.
Second embodiment
Referring to Fig. 4, present embodiments providing a kind of intelligent battery 200, the intelligent battery 200 includes rechargeable battery
And synchronous rectification reducing two-way translation circuit 100 as described in the first embodiment, the synchronous rectification reducing two-way become
Change circuit 100 include first port 140, the rechargeable battery 210 anode connect with the first port 140, it is described can
The cathode of rechargeable battery 210 is grounded.
In the present embodiment, the rechargeable battery 210 can be lithium battery, but not limited to this, it can also be other
Rechargeable battery 210.
In conclusion the present invention provides a kind of synchronous rectification reducing two-way translation circuit and intelligent battery, the synchronization
Rectification reducing two-way translation circuit includes intelligent control chip, protection circuit, H bridge type circuit, first port and second port
And third port；The first port is for being electrically connected with the battery to provide for the synchronous rectification reducing two-way translation circuit
Input power；The protection circuit is set between the first port and second port, electrical with the intelligent control chip
Connection, and for providing charge and discharge for the synchronous rectification reducing two-way translation circuit under the control of the intelligent control chip
Protection；The H bridge type is electrically connected between the protection circuit and the third port, electrical with the intelligent control chip
Connection, the third port is for connecting external equipment, and when connecting external equipment is electrical equipment, the H bridge type circuit exists
The output voltage of third port is depressured under the control of the intelligent control chip, when connection external equipment is power supply unit
When, the H bridge type circuit is depressured the input voltage of third port under the control of the intelligent control chip.Pass through this
The synchronous rectification reducing two-way translation circuit provided is provided, may be implemented to rechargeable battery charging, the protection of discharge process, no
But it can be charged, can also be charged in other voltage values, such as 5V with the nominal charge voltage of rechargeable battery.It is described to fill
Battery is capable of providing the output of its nominal voltage, can also provide after synchronous rectification reducing two-way translation circuit decompression
Output realizes twin voltage charging, dual output, improves the safety coefficient of rechargeable battery, widened rechargeable battery
Usage scenario, huge economic benefit can be generated.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of synchronous rectification reducing two-way translation circuit, which is characterized in that the synchronous rectification reducing two-way translation circuit packet
Include intelligent control chip, protection circuit, H bridge type circuit, first port and second port and third port；
The first port is for being electrically connected with the battery to provide input electricity for the synchronous rectification reducing two-way translation circuit
Source；
The protection circuit is set between the first port and second port, is electrically connected with the intelligent control chip,
And for providing charge and discharge protecting for the synchronous rectification reducing two-way translation circuit under the control of the intelligent control chip；
The H bridge type is electrically connected between the protection circuit and the third port, electrical with the intelligent control chip
Connection, the third port is for connecting external equipment, and when connecting external equipment is electrical equipment, the H bridge type circuit exists
The output voltage of third port is depressured under the control of the intelligent control chip, when connection external equipment is power supply unit
When, the H bridge type circuit is depressured the input voltage of third port under the control of the intelligent control chip.
2. synchronous rectification reducing two-way translation circuit as described in claim 1, which is characterized in that the protection circuit includes the
One switching tube and second switch, the source electrode of the first switch tube and the first port are electrically connected, the first switch
The drain electrode of pipe is connect with the source electrode of the second switch, and the source electrode of the second switch electrically connects with the second port
It connecing, the grid of the first switch tube and the second switch is connect with the port I/O of the intelligent control chip respectively, with
The on or off under the control of the intelligent control chip, to enter charged state or discharge condition in the rechargeable battery
When overcurrent and overvoltage protection are provided.
3. synchronous rectification reducing two-way translation circuit as claimed in claim 2, which is characterized in that the H bridge type circuit includes
Third switching tube, the 4th switching tube, the 5th switching tube, the 6th switching tube and inductance, the third switching tube and the 4th switch
Pipe series connection, the third switching tube, the 4th switching tube, the 5th switching tube, the 6th switching tube grid with the intelligent control
Chip is electrically connected, with the on or off under the control of the intelligent control chip, the source electrode of the third switching tube and institute
Second port connection is stated, the drain electrode of the 4th switching tube is electrically connected with the drain electrode of the third switching tube, and the described 5th opens
The source electrode for closing pipe is connect with the third port, and the drain electrode of the 6th switching tube is connect with the drain electrode of the 5th switching tube,
One end of the inductance is connect with the drain electrode of the third switching tube, and the other end is connect with the drain electrode of the 5th switching tube, institute
Third switching tube and the 4th switching tube are stated for carrying out under the control of intelligent control chip to the output of rechargeable battery
Decompression processing, the 5th switching tube and the 6th switching tube are for carrying out at decompression the input that rechargeable battery charges
Reason.
4. synchronous rectification reducing two-way translation circuit as claimed in claim 3, which is characterized in that when first feedback pin
When detecting the voltage value of the third port greater than the first preset value, the intelligent control chip controls the synchronous rectification decompression
Two-way changing circuit enters charge mode to connect external power supply equipment as rechargeable battery charging.
5. synchronous rectification reducing two-way translation circuit as claimed in claim 4, which is characterized in that first preset value is
4.3V。
6. synchronous rectification reducing two-way translation circuit as described in claim 1, which is characterized in that the synchronous rectification decompression is double
It further include indicating lamp module to translation circuit, the indicating lamp module is connect with the intelligent control chip, in the intelligence
It can control the different conditions for showing rechargeable battery under chip controls with light.
7. synchronous rectification reducing two-way translation circuit as described in claim 1, which is characterized in that the synchronous rectification decompression is double
It further include touch switch key to translation circuit, the touch switch key is connect with the intelligent control chip, for responding
The touch control operation of user is to control opening or closing for the indicating lamp module.
8. synchronous rectification reducing two-way translation circuit as described in claim 1, which is characterized in that the synchronous rectification decompression is double
It further include temperature management module to translation circuit, the temperature management module is connect with the intelligent control chip, the temperature
Management module is used to detect the temperature of rechargeable battery, and the temperature value that will test is sent to intelligent control chip, the intelligence
Can control chip makes the synchronous rectification reducing two-way translation circuit enter protection mould when the temperature detected is higher than preset value
Formula.
9. a kind of intelligent battery, which is characterized in that the intelligent battery includes rechargeable battery and such as claim 1-8 any
Synchronous rectification reducing two-way translation circuit described in one, the synchronous rectification reducing two-way translation circuit includes first port,
The anode of the rechargeable battery is connect with the first port, the cathode ground connection of the rechargeable battery.
10. intelligent battery as claimed in claim 9, which is characterized in that the rechargeable battery is lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365749.0A CN109245595A (en) | 2018-11-16 | 2018-11-16 | Synchronous rectification reducing two-way translation circuit and intelligent battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365749.0A CN109245595A (en) | 2018-11-16 | 2018-11-16 | Synchronous rectification reducing two-way translation circuit and intelligent battery |
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| CN109245595A true CN109245595A (en) | 2019-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811365749.0A Pending CN109245595A (en) | 2018-11-16 | 2018-11-16 | Synchronous rectification reducing two-way translation circuit and intelligent battery |
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