CN209184272U - A kind of charger - Google Patents

A kind of charger Download PDF

Info

Publication number
CN209184272U
CN209184272U CN201822016449.3U CN201822016449U CN209184272U CN 209184272 U CN209184272 U CN 209184272U CN 201822016449 U CN201822016449 U CN 201822016449U CN 209184272 U CN209184272 U CN 209184272U
Authority
CN
China
Prior art keywords
resistance
transistor
charging
circuit
connection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201822016449.3U
Other languages
Chinese (zh)
Inventor
孙诗良
梁火雄
林培林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guizhou Debang Energy Technology Co ltd
Original Assignee
SHENZHEN DOKOCOM ENERGY TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHENZHEN DOKOCOM ENERGY TECHNOLOGY Co Ltd filed Critical SHENZHEN DOKOCOM ENERGY TECHNOLOGY Co Ltd
Priority to CN201822016449.3U priority Critical patent/CN209184272U/en
Application granted granted Critical
Publication of CN209184272U publication Critical patent/CN209184272U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The utility model discloses a kind of chargers, it includes an ontology, the ontology is equipped with multiple charging slots, each charging slot is correspondingly provided with a charging circuit, and a control circuit is additionally provided in the ontology, the control circuit is connect with multiple charging circuits, to detect the voltage difference and charging current of each two output end of charging circuit, and according to the work of the voltage difference of detection and charging current control charging circuit.Compared with prior art, the charger of the utility model has compatibility, it can charge simultaneously to different rechargeable batteries, multiple charging slots i.e. in charger are respectively provided with a charging circuit, the voltage difference between two output ends of charging circuit is detected by control circuit, to identify the battery types to be charged being located in charging slot, and adaptively setting corresponds to the charging voltage and current of identified battery types.

Description

A kind of charger
Technical field
The utility model relates to charging units, relate more specifically to a kind of charger.
Background technique
Charger uses high frequency electric source technology, adjusts and charges with advanced Intelligent Dynamic.Currently, single battery charging Seat fills there are many kinds of product markets, but most of product is all only corresponding model specification battery charging;Such as lithium ion two Primary cell charge prepd can only charge to No. 5 lithium ion battery chargings, or to 18650 lithium batteries;And it cannot give ni-mh can Rechargeable battery charging, does not have compatibility and flexibility.In each electronic product of living, the lithium of portioned product demand 3.6V from Sub- battery powers or is 1.5V nickel-metal hydride battery power supply etc.;And under energy-saving and environment-friendly main trend, rechargeable battery exists It occupies an leading position on the market;But since consumer has a few money batteries that must be equipped with a few money chargers, the utilization rate of every money charger It is not high, while certain spatial position is occupied, so that existing charger is not able to satisfy consumer's use demand increasingly.
In consideration of it, it is necessary to provide one kind can intelligent recognition battery types, the adaptive charging that charging voltage and current is set Device is to solve drawbacks described above.
Utility model content
The technical problem to be solved by the utility model is to provide one kind can intelligent recognition battery types, adaptive setting fills The charger of piezoelectric voltage electric current.
In order to solve the above technical problems, a kind of charger of the utility model comprising have an ontology, the ontology is equipped with Multiple charging slots, each charging slot is correspondingly provided with a charging circuit, and a control circuit is additionally provided in the ontology, the control electricity Road is connect with multiple charging circuits, to detect the voltage difference and charging current of each two output end of charging circuit, and according to detection Voltage difference and charging current control charging circuit work.
Its further technical solution are as follows: the charging circuit includes the first transistor, second transistor, third crystal Pipe, the 6th transistor, the 6th resistance, the 7th resistance, the 9th resistance, the tenth resistance, twelfth resistor, the 17th resistance, the tenth Eight resistance, the 41st resistance, the first voltage-stabiliser tube, the second diode, third diode, the 4th diode, first capacitor and First inductance;Wherein, the base stage of the first transistor is connected to DC supply input, and its collector by the 9th resistance The anode of the 4th diode and the cathode of the first voltage-stabiliser tube are connected, and is connected to DC supply input, the 4th diode Cathode connects the source electrode of the 6th transistor, the transmitting of grid the connection third transistor and the first transistor of the 6th transistor The anode of pole and the first voltage-stabiliser tube, one end of drain electrode the first inductance of connection and the cathode of the second diode, first electricity The anode of the other end connection first capacitor of sense and one end of the 6th resistance, and as output cathode end, which bears Pole connects one end of the anode of the second diode, the tenth resistance and the 18th resistance, and is grounded, the tenth resistance and the 18th The other end of resistance is all connected with one end of the 41st resistance, and the other end of the 41st resistance is as output negative pole end, institute The cathode of the other end connection third diode of the 6th resistance is stated, the anode of the third diode is connected to reference voltage, described One end of the base stage connection twelfth resistor of second transistor, collector are connected to the first transistor and the by the 7th resistance The base stage of three transistors, the collector of the third transistor are connected to the emitter of second transistor by the 17th resistance, and Ground connection, the output cathode end, the both ends of the 41st resistance and the other end of twelfth resistor are connected to control circuit.
Its further technical solution are as follows: the control circuit includes the main control chip of model PIC18F4XK80, described The other end of the 1st pin connection twelfth resistor of main control chip, the 27th pin connect the both ends of the 41st resistance, the 26 pins connect output cathode end.
Its further technical solution are as follows: the charging circuit further includes having a battery detection circuit for access comprising has one 42nd pin of resistance, the main control chip is connected to reference voltage by the resistance.
Its further technical solution are as follows: the charging circuit further includes having a cell anti-reverse to connect circuit, the cell anti-reverse Connecing circuit includes first voltage comparator, the 20th resistance, the 22nd resistance, the 26th resistance, the 35th resistance And the 7th transistor;Wherein, the non-inverting input terminal of the first voltage comparator is connected to master control core by the 20th resistance 26th pin of piece, inverting input terminal is connected to working power by the 22nd resistance, and is connect by the 26th resistance Ground, output end connect the grid of the 7th transistor, the drain electrode connection the 40th of the 7th transistor by the 35th resistance The one end of one resistance as output negative pole end, source electrode connect the other end of the 41st resistance.
Its further technical solution are as follows: each charging slot is additionally provided with a discharge circuit, and the discharge circuit includes the 9th Transistor, the tenth transistor, first resistor, second resistance, 3rd resistor, the 4th resistance, the 43rd resistance, the 46th electricity Resistance, the 47th resistance, the 52nd resistance, the 53rd resistance, the 54th resistance, the 55th resistance and the second electricity Press comparator;Wherein, the output end of the second voltage comparator connects the base stage of the tenth transistor by the 4th resistance, this The emitter of ten transistors connects the base stage of the 9th transistor, and collector connects the collector of the 9th transistor, and is connected to The emitter of 26th pin of main control chip, the 9th transistor connects the 52nd resistance, the 55th resistance and third One end of resistance, inverting input terminal, the second resistance and the 5th of the other end connection second voltage comparator of the 3rd resistor One end of 14 resistance, the end VCC of the other end connection second voltage comparator of the 54th resistance, and it is connected to work Power supply, one end of non-inverting input terminal the connection first resistor and the 47th resistance of the second voltage comparator, second electricity The end GND of comparator, the other end ground connection of first resistor and second resistance are pressed, the other end of the 47th resistance connects master Control the 10th pin of chip, the other end of the 52nd resistance and the 55th resistance is all connected with the 46th resistance, the One end of 43 resistance and the 53rd resistance, the other end ground connection of the 46th resistance, the 43rd resistance are described 27th pin of main control chip connects the both ends of the 53rd resistance, and the 53rd resistance is connect with the 46th resistance One end be connected to the source electrode that cell anti-reverse connects the 7th transistor in circuit, the other end is connected to cell anti-reverse and connects in circuit The drain electrode of seven transistors.
Its further technical solution are as follows: the control circuit further includes having a key detection electricity connecting with main control chip Road outputs control signals to discharge circuit for receiving externally input detection signal to trigger main control chip comprising has One switch and the 6th capacitor, one end of the first switch connects one end of the 6th capacitor and the 4th pin of main control chip, another The other end of one end and the 6th capacitor is grounded.
Its further technical solution are as follows: the control circuit further includes having a maintenance circuitry connecting with main control chip, Include second switch and the 5th capacitor, one end of the second switch connect the 5th capacitor one end and main control chip the 5th The other end of pin, the other end and the 5th capacitor is grounded.
Compared with prior art, the charger of the utility model has compatibility, can fill simultaneously to different rechargeable batteries Electricity, i.e., multiple charging slots in charger are respectively provided with a charging circuit, detect two output ends of charging circuit by control circuit Between voltage difference, to identify the battery types to be charged being located in charging slot, and adaptively setting corresponds to and is identified The charging voltage and current of battery types.
Detailed description of the invention
Fig. 1 is the electricity of one specific embodiment of charging circuit in the utility model charger, discharge circuit and control circuit Road schematic diagram.
Specific embodiment
To make those skilled in the art that the purpose of this utility model, technical solution and excellent be more clearly understood Point is further elaborated the utility model below in conjunction with drawings and examples.
Referring to Fig.1, Fig. 1 is charging circuit 101, discharge circuit 102 and control circuit one in the utility model charger The circuit diagram of specific embodiment.In the present embodiment, the charger includes an ontology, and the ontology is equipped with multiple fill Electric slot, each charging slot is correspondingly provided with a charging circuit 101, and a control circuit is additionally provided in the ontology, the control circuit It is connect with multiple charging circuits 101, to detect the voltage difference and charging current of 101 liang of output ends of each charging circuit, and according to The work of voltage difference and charging current the control charging circuit 101 of detection.Based on above-mentioned design, in the utility model charger Multiple charging slots are respectively provided with a charging circuit 101, and each charging slot can place a rechargeable battery, are detected and are charged by control circuit Voltage difference between 101 two output ends of circuit to identify the battery types to be charged being located in charging slot, and can adaptively be set The charging voltage and current corresponding to identified battery types is set, to control the work of corresponding charging circuit 101, so that this reality Have compatibility with novel charger, can charge simultaneously to different rechargeable batteries, and the charger charging of the utility model Also it can make its practical charging electricity by the actual charge current of detection charging circuit to be adjusted to its charging current in the process It flows more accurate.
In the embodiment shown in the figures, the charging circuit 101 is voltage-dropping type charging circuit comprising has first crystal Pipe Q1, second transistor Q2, third transistor Q3, the 6th transistor Q6, the 6th resistance R6, the 7th resistance R7, the 9th resistance R9, Tenth resistance R106, twelfth resistor R12, the 17th resistance R17, the 18th resistance R105, the 41st resistance R21, first Voltage-stabiliser tube Z1, the second diode D2, third diode D3, the 4th diode D4, first capacitor C1 and the first inductance L1;Its In, the base stage of the first transistor Q1 is connected to DC supply input by the 9th resistance R9, and its collector connection the The cathode of the anode of four diode D4 and the first voltage-stabiliser tube Z1, and it is connected to DC supply input, the 4th diode D4's Cathode connects the source electrode of the 6th transistor Q6, the grid connection third transistor Q3 and the first transistor of the 6th transistor Q6 The anode of the emitter of Q1 and the first voltage-stabiliser tube Z1, one end of the first inductance L1 of drain electrode connection and bearing for the second diode D2 Pole, the anode of the other end connection first capacitor C1 of the first inductance L1 and one end of the 6th resistance R6, and just as output Extremely, the cathode of first capacitor C1 connects the anode of the second diode D2, the tenth resistance R106 and the 18th resistance R105 One end, and be grounded, the other end of the tenth resistance R106 and the 18th resistance R105 connects the one of the 41st resistance R21 End, for the other end of the 41st resistance R21 as output negative pole end, the other end of the 6th resistance R6 connects the three or two pole The cathode of pipe D3, the anode of third diode D3 are connected to reference voltage Vref, the base stage connection of the second transistor Q2 One end of twelfth resistor R12, collector are connected to the first transistor Q1's and third transistor Q3 by the 7th resistance R7 The collector of base stage, third transistor Q3 is connected to the emitter of second transistor Q2 by the 17th resistance R17, and connects Ground, the output cathode end, the both ends of the 41st resistance R21 and the other end of twelfth resistor R12 are connected to control Circuit.In the present embodiment, the reference voltage Vref is the 5V reference voltage provided.
In the present embodiment, the control circuit includes the main control chip of model PIC18F4XK80, the master control core The other end of the 1st pin connection twelfth resistor R12 of piece, the 27th pin connect the both ends of the 41st resistance R21, the 26 pins are connected to output cathode end by a resistance R115, and the 26th pin is grounded by the second capacitor C2.Preferably, originally In embodiment, the charging circuit 101 further includes having a battery detection circuit for access comprising has a resistance R29, the master control 42nd pin of chip is connected to reference voltage Vref by resistance R29, whether in place can detect battery.Based on the design, Charger powers on, and main control chip initialization, default pwm signal is 0V, is charged and discharged function and is in close state, passes through master control The voltage difference of 26th pin of chip and the detection of 27 pins charging circuit 101 output cathode end and negative pole end both ends, then be pre-charged, Pre-charge current is 100mA, and the 26th pin of main control chip and 27 pins detect 101 output cathode of charging circuit again after precharge The voltage difference at end and negative pole end both ends, main control chip are known according to the voltage difference at precharge front and back output cathode end and negative pole end both ends Not Chu battery types (such as 2.5V or more is lithium battery, and 1.8V is below for nickel-metal hydride battery etc.), and it is defeated by the 1st pin Corresponding pwm signal, with control adjustment charging voltage and electric current, can also be detected into charging circuit 101 by the 27th pin out That end electric current that 41st resistance R21 is connect with the tenth resistance R106, to adjust the size of charging current, i.e., the 41st electricity Current sample terminal of that end that resistance R21 is connect with the tenth resistance R106 as charger.When charging circuit 101 has input current It flows into, and when main control chip input pwm signal, transistor Q1, Q2, Q3 and Q6 conducting, the first inductance L1 energy storage, and is filled to battery Electricity, and when no input current flows into, the electric energy of the first inductance L1 storage can charge the battery.
In certain embodiments, the charging circuit 101 further includes having a cell anti-reverse to connect circuit, and the cell anti-reverse connects Circuit includes first voltage comparator U1, the 20th resistance R20, the 22nd resistance R22, the 26th resistance R26, third 15 resistance R35 and the 7th transistor Q7;Wherein, the non-inverting input terminal of the first voltage comparator U1 passes through the 20th electricity Resistance R20 is connected to the 26th pin of main control chip, and inverting input terminal is connected to working power by the 22nd resistance R22 VDD, and be grounded by the 26th resistance R26, output end passes through the grid of the 7th transistor Q7 of the 35th resistance R35 connection Pole, one end as output negative pole end drain electrode the 41st resistance R21 of connection of the 7th transistor Q7, source electrode connect this The other end of 41 resistance R21.In the present embodiment, the working power VDD be the linear pressure stabilizing of external power supply power supply after The power supply arrived provides the operating voltage of 5V.Based on the design, if battery is correctly installed, the voltage-to-ground of non-inverting input terminal Greater than the voltage-to-ground of reverse input end, output end exports high level, the 7th transistor Q7 conducting, battery cathode network with connect It is logical to form closed loop.
In the embodiment shown in the figures, each charging slot is additionally provided with a discharge circuit 102, and the discharge circuit 102 wraps The 9th transistor Q9, the tenth transistor Q10, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, are included 43 resistance R106, the 46th resistance R105, the 47th resistance R47, the 52nd resistance R52, the 53rd resistance R21, the 54th resistance R54, the 55th resistance R55 and second voltage comparator U2;Wherein, the second voltage compares The output end of device U2 passes through the base stage of the tenth transistor Q10 of the 4th resistance R4 connection, the emitter connection of the tenth transistor Q10 The base stage of 9th transistor Q9, collector connect the collector of the 9th transistor Q9, and are connected to the 26th of main control chip and draw The emitter of foot, the 9th transistor Q9 connects the 52nd resistance R52, the 55th resistance R55 and 3rd resistor R3 One end, the inverting input terminal of the other end connection second voltage comparator U2 of the 3rd resistor R3, second resistance R2 and the 5th One end of 14 resistance R54, the end power supply VCC of the other end connection second voltage comparator U2 of the 54th resistance R54, And it is connected to working power VDD, the non-inverting input terminal electricity of connection first resistor R1 and the 47th of second voltage comparator U2 Hinder one end of R47, the other end ground connection at the end GND of the second voltage comparator U2, first resistor R1 and second resistance R2, institute State the 10th pin of the other end connection main control chip of the 47th resistance R47, the 52nd resistance R52 and the 55th The other end of resistance R55 is all connected with the one of the 46th resistance R105, the 43rd resistance R106 and the 53rd resistance R21 End, the other end ground connection of the 46th resistance R105, the 43rd resistance R106, the 27th pin of the main control chip connect Connect the both ends of the 53rd resistance R21, and one end connection that the 53rd resistance R21 is connect with the 46th resistance R105 The source electrode of the 7th transistor Q7 in circuit is connect to cell anti-reverse, the other end is connected to cell anti-reverse and connects the 7th transistor in circuit The drain electrode of Q7.Understandably, because of the 43rd resistance R106, the 46th resistance R105 and the 50th in discharge circuit 102 The performance of three resistance R21 and the tenth resistance R106, the 18th resistance R105 and the 41st resistance R21 in charging circuit 101 Parameter is identical with function, and the charging circuit 101 and discharge circuit 102 in the present embodiment share this part of these three resistance composition Circuit, then in the present embodiment, one end of the drain electrode connection of resistance R21 and the 7th transistor Q7 is another as negative pole of output end End is current sample terminal, and in some other embodiments, the charging circuit 101 and discharge circuit 102 can not also share The circuit of this part and individually respectively setting one circuit.
In the present embodiment, the control circuit further includes having a key press detecting circuit connecting with main control chip, is used for Externally input detection signal is received, outputs control signals to discharge circuit 102 to trigger main control chip comprising have first to open S1 and the 6th capacitor C6 is closed, one end of the first switch S1 connects one end of the 6th capacitor C6 and the 4th pin of main control chip, The other end of its other end and the 6th capacitor C6 are grounded.In the utility model, battery performance superiority-inferiority is divided into " well, one As, it is poor, scrap " fourth gear, be based on above-mentioned design, when control circuit receives externally input detection signal, main control chip The voltage difference between output cathode end and output negative pole end is detected, the 10th pin of main control chip output control of discharge after this value is write down Signal so that discharge circuit 102 discharges to battery by predetermined current, while writing down output cathode end to discharge circuit 102 Voltage difference between output negative pole end;By voltage difference before battery discharge subtract electric discharge in voltage difference after again divided by Default discharge current value measures internal resistance value;Then it charges the battery, stand again, measuring output cathode end and defeated before electric discharge The voltage difference of negative pole end out, then the voltage difference at discharge output cathode end and output negative pole end when measuring electric discharge, repeatedly Aforesaid operations measure one group of internal resistance value;Remove maximum value and minimum value, residual value is averaged, and will be calculated resulting average Internal resistance value is compared with the internal resistance value of this type battery kilter, therefore, it is determined that battery performance superiority-inferiority out.
In certain embodiments, the control circuit further includes having a maintenance circuitry connecting with main control chip comprising There is a second switch S2 and the 5th capacitor C5, one end of the second switch S2 connects one end and the main control chip of the 5th capacitor C5 The other end of 5th pin, the other end and the 5th capacitor C5 are grounded.Based on above-mentioned design, when the 5th pin of main control chip connects When receiving maintenance signal, main control chip identifies battery types first, then controls charging circuit 101 and export corresponding charging current pair Battery charges, and discharges again battery after fully charged, then charges again to battery, if lithium ion battery is then charged to completely The 60%-80% of electricity terminates, if nickel-metal hydride battery, which is then full of, just to be terminated, the relay of the utility model can be periodically to long-term Not used storage battery carries out charge and discharge maintenance.
In conclusion the charger of the utility model has compatibility, it can charge, that is, be filled to different rechargeable batteries simultaneously Multiple charging slots in electric appliance are respectively provided with a charging circuit, detect the electricity between two output ends of charging circuit by control circuit Pressure difference, to identify the battery types to be charged being located in charging slot, and adaptively setting corresponds to identified battery types Charging voltage and current.
The above is only the preferred embodiment of the present invention, rather than does limit in any form to the utility model System.Those skilled in the art can impose various equivalent changes and improvement on the basis of the above embodiments, all to want in right The equivalent variations or modification done in range are sought, should fall within the protection scope of this utility model.

Claims (8)

1. a kind of charger, it is characterised in that: the charger includes an ontology, and the ontology is equipped with multiple charging slots, Each charging slot is correspondingly provided with a charging circuit, and a control circuit is additionally provided in the ontology, and the control circuit is filled with multiple Electric circuit connection, to detect the voltage difference and charging current of each two output end of charging circuit, and according to the voltage difference of detection and The work of charging current control charging circuit.
2. charger as described in claim 1, it is characterised in that: the charging circuit includes the first transistor, the second crystalline substance Body pipe, third transistor, the 6th transistor, the 6th resistance, the 7th resistance, the 9th resistance, the tenth resistance, twelfth resistor, 17 resistance, the 18th resistance, the 41st resistance, the first voltage-stabiliser tube, the second diode, third diode, the 4th diode, First capacitor and the first inductance;Wherein, the base stage of the first transistor is connected to DC supply input by the 9th resistance End, and its collector connects the anode of the 4th diode and the cathode of the first voltage-stabiliser tube, and is connected to DC supply input, it should The cathode of 4th diode connects the source electrode of the 6th transistor, and the grid of the 6th transistor connects third transistor and first The anode of the emitter of transistor and the first voltage-stabiliser tube, one end of drain electrode the first inductance of connection and bearing for the second diode Pole, the anode of the other end connection first capacitor of first inductance and one end of the 6th resistance, and as output cathode end, it should The cathode of first capacitor connects one end of the anode of the second diode, the tenth resistance and the 18th resistance, and is grounded, the described tenth The other end of resistance and the 18th resistance is all connected with one end of the 41st resistance, and the other end of the 41st resistance is as defeated Negative pole end out, the cathode of the other end connection third diode of the 6th resistance, the anode of the third diode are connected to base Quasi- voltage, one end of the base stage connection twelfth resistor of the second transistor, collector are connected to the by the 7th resistance The collector of the base stage of one transistor and third transistor, the third transistor is connected to second transistor by the 17th resistance Emitter, and be grounded, the output cathode end, the both ends of the 41st resistance and the other end of twelfth resistor are all connected with To control circuit.
3. charger as claimed in claim 2, it is characterised in that: the control circuit includes model PIC18F4XK80 Main control chip, the main control chip the 1st pin connection twelfth resistor the other end, the 27th pin connection the 41st The both ends of resistance, the 26th pin connect output cathode end.
4. charger as claimed in claim 3, it is characterised in that: the charging circuit further includes having battery access detection electricity Road comprising have a resistance, the 42nd pin of the main control chip is connected to reference voltage by the resistance.
5. charger as claimed in claim 3, it is characterised in that: the charging circuit further includes having a cell anti-reverse to connect electricity Road, it includes first voltage comparator, the 20th resistance, the 22nd resistance, the 26th electricity that the cell anti-reverse, which connects circuit, Resistance, the 35th resistance and the 7th transistor;Wherein, the non-inverting input terminal of the first voltage comparator passes through the 20th electricity Resistance is connected to the 26th pin of main control chip, and inverting input terminal is connected to working power by the 22nd resistance, and passes through 26th resistance eutral grounding, output end connect the grid of the 7th transistor by the 35th resistance, the 7th transistor The one end of drain electrode the 41st resistance of connection as output negative pole end, source electrode connect the other end of the 41st resistance.
6. charger as claimed in claim 5, it is characterised in that: each charging slot is additionally provided with a discharge circuit, the electric discharge Circuit includes the 9th transistor, the tenth transistor, first resistor, second resistance, 3rd resistor, the 4th resistance, the 43rd Resistance, the 46th resistance, the 47th resistance, the 52nd resistance, the 53rd resistance, the 54th resistance, the 50th Five resistance and second voltage comparator;Wherein, the output end of the second voltage comparator passes through the 4th resistance connection the tenth The base stage of transistor, the emitter of the tenth transistor connect the base stage of the 9th transistor, and collector connects the 9th transistor Collector, and be connected to the 26th pin of main control chip, the emitter of the 9th transistor connects the 52nd resistance, the One end of 55 resistance and 3rd resistor, the anti-phase input of the other end connection second voltage comparator of the 3rd resistor It holds, one end of second resistance and the 54th resistance, the other end connection second voltage comparator of the 54th resistance The end VCC, and it is connected to working power, the non-inverting input terminal connection first resistor of the second voltage comparator and the 47th resistance One end, the other end ground connection at the end GND of the second voltage comparator, first resistor and second resistance, the described 47th The other end of 10th pin of the other end connection main control chip of resistance, the 52nd resistance and the 55th resistance connects Connect one end of the 46th resistance, the 43rd resistance and the 53rd resistance, the 46th resistance, the 43rd resistance Other end ground connection, the 27th pin of the main control chip connects the both ends of the 53rd resistance, and the 53rd resistance The one end connecting with the 46th resistance is connected to the source electrode that cell anti-reverse connects the 7th transistor in circuit, and the other end is connected to Cell anti-reverse connects the drain electrode of the 7th transistor in circuit.
7. charger as claimed in claim 6, it is characterised in that: the control circuit further includes having one to connect with main control chip Key press detecting circuit, for receiving externally input detection signal, with trigger main control chip output control signals to electric discharge electricity Road comprising have first switch and the 6th capacitor, one end of the first switch connects one end and the main control chip of the 6th capacitor The 4th pin, the other end of the other end and the 6th capacitor is grounded.
8. charger as claimed in claim 6, it is characterised in that: the control circuit further includes having one to connect with main control chip Maintenance circuitry comprising have second switch and the 5th capacitor, one end of the second switch connect the 5th capacitor one end and The other end of 5th pin of main control chip, the other end and the 5th capacitor is grounded.
CN201822016449.3U 2018-12-03 2018-12-03 A kind of charger Expired - Fee Related CN209184272U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822016449.3U CN209184272U (en) 2018-12-03 2018-12-03 A kind of charger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822016449.3U CN209184272U (en) 2018-12-03 2018-12-03 A kind of charger

Publications (1)

Publication Number Publication Date
CN209184272U true CN209184272U (en) 2019-07-30

Family

ID=67375456

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822016449.3U Expired - Fee Related CN209184272U (en) 2018-12-03 2018-12-03 A kind of charger

Country Status (1)

Country Link
CN (1) CN209184272U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109510269A (en) * 2018-12-03 2019-03-22 深圳市德帮能源科技有限公司 A kind of charger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109510269A (en) * 2018-12-03 2019-03-22 深圳市德帮能源科技有限公司 A kind of charger

Similar Documents

Publication Publication Date Title
CN102832669B (en) Intelligent charge-discharge control circuit of battery
CN104242372B (en) The charging method and electronic cigarette packet of electronic cigarette
CN208539612U (en) A kind of charging box of bluetooth headset
CN103227483B (en) A kind of solar charger for multiple battery charging
CN109490789A (en) Battery detection circuit in place, method and intelligent wearable device
CN203056644U (en) Intelligent charge-discharge control circuit of battery
CN102222942A (en) Power supply circuit and charging method for electronic equipment
CN111313515A (en) Multi-output-port fast charging switching circuit and method
CN105720646A (en) Charging current-limiting circuit for communication base station reserve power supply
CN104467040A (en) Vehicle-mounted uninterruptible power supply (UPS) storage battery control and management device
CN202395113U (en) Intelligent battery unit
CN209184272U (en) A kind of charger
CN105826959A (en) Charging method, device and mobile terminal
CN103151812B (en) Wireless charging mobile power supply
CN204732921U (en) A kind of for the detection between UPS and external storage battery and protective circuit
CN207382017U (en) The charger detection circuit and battery management system of a kind of battery management system
CN211790867U (en) Multi-output-port fast charging switching circuit
CN111404217B (en) Portable energy management circuit and system
CN117614074A (en) Battery control circuit based on MCU control
CN204376473U (en) Portable power source
CN109510269A (en) A kind of charger
CN205195315U (en) Syllogic charging circuit of compatible nickel -hydrogen battery and lithium cell
CN206323295U (en) A kind of power circuit suitable for RTU
CN202503336U (en) High efficient automatic management module of backup battery of intelligent concentrator
CN106571496B (en) Scalable modularization power battery system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20200115

Address after: 551700 Building 9, standard workshop, qixingguan Economic Development Zone, Bihai street, qixingguan District, Bijie City, Guizhou Province

Patentee after: Guizhou Debang Energy Technology Co.,Ltd.

Address before: 518000, No. 1-6, No. 28, industrial North Zone, Xin Tong community, Fuyong street, Baoan District, Guangdong, Shenzhen

Patentee before: Shenzhen Dokocom Energy Technology Co.,Ltd.

TR01 Transfer of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190730

CF01 Termination of patent right due to non-payment of annual fee