CN103607010A - Charging and discharging control device and method of mobile power source - Google Patents
Charging and discharging control device and method of mobile power source Download PDFInfo
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- CN103607010A CN103607010A CN201310604086.4A CN201310604086A CN103607010A CN 103607010 A CN103607010 A CN 103607010A CN 201310604086 A CN201310604086 A CN 201310604086A CN 103607010 A CN103607010 A CN 103607010A
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Abstract
The invention discloses a charging and discharging control device and method of a mobile power source. After a control instruction is received, whether direct current voltage input from a charging and discharging port meets a preset charging condition or not is judged, and if yes, a charging control signal is sent. When the charging control signal is received, direct current input from the charging and discharging port is received to charge a battery of the mobile power source, and the mobile power source is in a charging mode. If the direct current voltage input from the charging and discharging port does not meet the charging condition, a discharging control signal is sent. When the discharging control signal is received, boosting processing is carried out on the input direct current then the current is output to the charging and discharging port, the battery of the mobile power source is discharged, and the mobile power source is in a discharging mode. The charging and discharging control device and method of the mobile power source control the battery of the mobile power source to be charged or discharged according to the direct current voltage input from the charging and discharging port, the mobile power source is not simultaneously in the charging mode and the discharging mode, work turbulence of an inner circuit system of the mobile power source is avoided, and the use stability of the mobile power source is improved.
Description
Technical field
The present invention relates to portable power source technical field, particularly relate to a kind of charge-discharge controller and method of portable power source.
Background technology
Portable power source is a kind of portable charger that integrates power supply and charge function, there is large capacity, multipurpose, volume is little, the life-span is long and the feature such as safe and reliable, can be the functional product of the digital product power supplies such as mobile phone, digital camera, MP3, MP4, palmtop PC, handheld device or standby charging whenever and wherever possible.
Portable power source in the market all possesses the electric discharge port of at least one power supply output, and a charging port to portable power source charging input, by selecting different ports to realize the charging/discharging function of portable power source.In normal circumstances, the electric discharge port of portable power source is that charging is used to external equipment.When user is because of improper use or carelessness, when the electric discharge port of portable power source is connected with charging port, portable power source there will be the phenomenon of oneself charging to oneself, causes the Circuits System work of portable power source inside disorderly.There is the shortcoming that stability in use is low in traditional portable power source.
Summary of the invention
Based on this, be necessary to provide a kind of charge-discharge controller and method that improves the portable power source of portable power source stability in use.
A charge-discharge controller for portable power source, comprising: discharge and recharge port; Charge control module, comprise input, output and control end, the input of described charge control module discharges and recharges port described in connecting, described charge control module, when the control end of described charge control module receives charging control signal, discharges and recharges the direct current of port input described in reception and is exported by the output of described charge control module; Control of discharge module, comprise control of discharge input, control of discharge output and control of discharge end, the control of discharge output of described control of discharge module discharges and recharges port described in connecting, described control of discharge module, for when the control of discharge termination of described control of discharge module is received discharge control signal, discharges and recharges port described in the direct current that the control of discharge input of described control of discharge module is inputted exports to after boosting and processing; Control module, described in connection, discharge and recharge the control end of port, charge control module and the control of discharge end of control of discharge module, for after receiving control command, whether the DC voltage that discharges and recharges port input described in judgement meets default charge condition, if send described charging control signal to the control end of described charge control module, send if not described discharge control signal to the control of discharge end of described control of discharge module; The control of discharge input of the output of described charge control module and control of discharge module is all for being connected the anode of portable power source.
In an embodiment, described control command is low level signal therein, and described control module comprises control chip and pressurizer,
Described control chip discharges and recharges the control end of port, charge control module and the control of discharge end of control of discharge module described in connecting, for after receiving described low level signal, whether the DC voltage that discharges and recharges port input described in judgement is more than or equal to predeterminated voltage value, if send described charging control signal to the control end of described charge control module, send if not described discharge control signal to the control of discharge end of described control of discharge module; And quit work after again receiving described low level signal;
The input of described pressurizer is used for accessing direct current, and the output of described pressurizer connects described control chip, and described pressurizer exports described control chip to after the direct current voltage stabilizing of access is processed, for described control chip provides operating voltage.
In an embodiment, described control module also comprises diode therein, described in the positive pole of described diode connects, discharges and recharges port, and the negative pole of described diode connects the input of described pressurizer.
In an embodiment, described charging control signal comprises charge switch Continuity signal and charging enable signal therein, and described charge control module comprises charge switch and charging chip,
The control end that the control end of described charge switch and the control end of charging chip are described charge control module, the input of described charge switch is the input of described charge control module, the output of described charge switch connects the input of described charging chip, the output of described charging chip is the output of described charge control module, the conducting when receiving described charge switch Continuity signal of described charge switch, described in access, discharge and recharge the direct current of port input, described control chip is when receiving described charging enable signal, export the direct current of described charge switch access.
In an embodiment, described charge switch comprises the first switching tube, second switch pipe and the first bias resistance therein,
The input of described the first switching tube is the input of described charge switch, and by described the first bias resistance, connects the control end of described the first switching tube, the output that the output of described the first switching tube is described charge switch,
The control end of described second switch pipe is the control end of described charge switch, and the input of described second switch pipe connects the input of described second switch pipe, the output head grounding of described second switch pipe by described the first bias resistance.
In an embodiment, described discharge control signal comprises discharge switch Continuity signal and the enable signal that boosts therein, and described control of discharge module comprises discharge switch and the chip that boosts,
The control end of the control end of described discharge switch and the chip that boosts is the control of discharge end of described control of discharge module, the input of described discharge switch is the control of discharge input of described control of discharge module, the input of chip boosts described in the output of described discharge switch connects, the output of the described chip that boosts is the control of discharge output of described control of discharge module, the conducting when receiving described discharge switch Continuity signal of described discharge switch, access the direct current of the input reception of described discharge switch, described control chip is when boosting enable signal described in receiving, the direct current of described discharge switch access is boosted described in processing and exporting to and discharges and recharges port.
In an embodiment, described discharge switch comprises the 3rd switching tube, the 4th switching tube and the second bias resistance therein,
The input of described the 3rd switching tube is the input of described discharge switch, and by described the second bias resistance, connects the control end of described the 3rd switching tube, the output that the output of described the 3rd switching tube is described discharge switch,
The control end of described the 4th switching tube is the control end of described discharge switch, and the input of described the 4th switching tube connects the control end of described the 3rd switching tube, the output head grounding of described the 4th switching tube.
In an embodiment, the charge-discharge controller of described portable power source also comprises voltage detection module and display module therein,
Described voltage detection module comprises input and output, and the output of described voltage detection module connects described control module, and described display module connects described control module;
Described voltage detection module is for the galvanic magnitude of voltage that gathers the input of described voltage detection module and receive and be sent to described control module, and the galvanic magnitude of voltage that described control module sends according to described voltage detection module is controlled described display module and shown corresponding presupposed information.
In an embodiment, the charge-discharge controller of described portable power source also comprises current monitoring module therein,
Described current monitoring module comprises input and output, the input of described current monitoring module connects the control of discharge output of described control of discharge module, the output of described current monitoring module connects described control module, whether described current monitoring module surpasses predetermined current value for detection of the galvanic current value of described control of discharge module output, if send feedback signal to described control module, described control module stops sending described discharge control signal after receiving described feedback signal.
A charge/discharge control method for portable power source, comprises the following steps:
Receive control command, whether the DC voltage that judgement discharges and recharges port input meets default charge condition;
If so, send charging control signal;
If not, send discharge control signal;
When receiving described charging control signal, described in receiving and exporting, discharge and recharge the direct current of port input, for the battery charging to portable power source;
When receiving described discharge control signal, the direct current of input is boosted described in exporting to after processing and discharges and recharges port, make the battery discharge of described portable power source.
The charge-discharge controller of above-mentioned portable power source and method, after receiving control command, whether the DC voltage that judgement discharges and recharges port input meets default charge condition, if send charging control signal.When receiving charging control signal, receive the direct current the output that discharge and recharge port input, be the battery charging of portable power source, portable power source is in charge mode.If discharge and recharge the DC voltage of port input, do not meet charge condition, send discharge control signal.When receiving discharge control signal, the direct current of input is boosted and exports to and discharge and recharge port after processing, make the battery discharge of portable power source, portable power source is in discharge mode.According to the DC voltage size that discharges and recharges port input, control the battery charge or discharge of portable power source, portable power source can be simultaneously in charge mode and discharge mode, avoid causing the work of portable power source internal circuitry disorderly, improved the stability in use of portable power source.
Accompanying drawing explanation
Fig. 1 is the structure chart of the charge-discharge controller of portable power source in an embodiment;
Fig. 2 is the structure chart of the charge-discharge controller of portable power source in another embodiment;
Fig. 3 A is the schematic diagram that discharges and recharges port, current monitoring module and partial discharge control module in an embodiment;
Fig. 3 B is the schematic diagram of charge control module and partial discharge control module in an embodiment;
Fig. 3 C is the schematic diagram of control module, sending module, voltage detection module and display module in an embodiment;
Fig. 4 is the flow chart of the charge/discharge control method of portable power source in an embodiment.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.A lot of details have been set forth in the following description so that fully understand the present invention.But the present invention can implement to be much different from alternate manner described here, and those skilled in the art can do similar improvement without prejudice to intension of the present invention in the situation that, so the present invention is not subject to the restriction of following public specific embodiment.
Unless otherwise defined, all technology of using are herein identical with the implication that belongs to the common understanding of those skilled in the art of the present invention with scientific terminology.The term using in specification of the present invention herein, just in order to describe the object of specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
A charge-discharge controller for portable power source, as shown in Figure 1, comprises and discharges and recharges port 110, charge control module 120, control of discharge module 130 and control module 140.
Discharge and recharge port 110 for connecting external power adapter, input or output direct current.Discharge and recharge port 110 and can adopt USB(Universal Serial Bus, USB) interface, discharge and recharge port 110 and specifically can only include a port, portable power source discharges and recharges by same port.Discharging and recharging port 110 can be also to comprise two ports, is used separately as charging port and electric discharge port, and charging port connects the input of charge control module 120, for accessing direct current; Electric discharge port connects the control of discharge output of control of discharge module 130, for exporting direct current.In the present embodiment, discharge and recharge port 110 and only include a port, simplified the structure of the charge-discharge controller of portable power source, also can avoid user's wrong plug interface when using portable power source, improve operation ease.
Control of discharge module 130 comprises control of discharge input, control of discharge output and control of discharge end, the control of discharge input of control of discharge module 130 is for connecting the positive pole of battery 210, and the control of discharge output connection of control of discharge module 130 discharges and recharges port 110.
Charge condition can be different according to the difference that discharges and recharges port 110 concrete structures.If discharge and recharge port 110, only include a port, charge condition can be that the DC voltage that discharges and recharges port 110 inputs is more than or equal to predeterminated voltage value, and predeterminated voltage value can be adjusted according to actual conditions.It is example that the predeterminated voltage value of take is 4.5 volts, if control module 140 judgements discharge and recharge the DC voltage of port 110 inputs and are more than or equal to 4.5V, send charging control signal to the control end of charge control module 120, otherwise send discharge control signal to the control of discharge end of control of discharge module 130.If discharge and recharge port 110, comprise charging port and two ports of electric discharge port, 140 of control modules need be connected with one that discharges in port with charging port, it is example that the control module 140 of take connects electric discharge port, and charge condition can be that electric discharge port is inputted without direct current.If control module 140 detects electric discharge, port is inputted without direct current, sends charging control signal to the control end of charge control module 120, otherwise sends discharge control signal to the control of discharge end of control of discharge module 130.
In an embodiment, as shown in Figure 2, the charge-discharge controller of portable power source can comprise the sending module 150 of link control module 140 therein, sending module 150 for sending controling instruction to control module 140.The charge-discharge controller that is appreciated that portable power source also can not comprise sending module 150, but passes through external control circuit sending controling instruction to control module 140.
In an embodiment, continue with reference to Fig. 2 therein, the charge-discharge controller of portable power source also can comprise voltage detection module 160 and display module 170.Voltage detection module 160 comprises input and output, and the input of voltage detection module 160 is for connecting the positive pole of battery 210, the output link control module 140 of voltage detection module 160, display module 170 link control modules 140.
Utilize voltage detection module 160 to detect the output voltage of the battery 210 of portable power source, control module 140 is controlled display module 170 according to the magnitude of voltage of battery 210 output and is shown corresponding presupposed information, and control module 140 also can quit work during lower than setting voltage value at magnitude of voltage.Output voltage to battery 210 is monitored, and at portable power source during in charge mode or discharge mode, avoids battery 210 chargings excessive or discharge excessively, improves portable power source useful life.
In an embodiment, the charge-discharge controller of portable power source also can comprise current monitoring module 180 therein.
Predetermined current value can be adjusted according to actual conditions, when portable power source is during in discharge mode, if detecting the galvanic current value of control of discharge module 130 outputs, current monitoring module 180 surpasses predetermined current value, send feedback signal to control module 140, control module 140 stops sending discharge control signal to control of discharge module 130, and portable power source stops electric discharge.In the present embodiment, be, the direct current of control of discharge module 130 outputs to be monitored during in discharge mode at portable power source, when electric current is too high, control of discharge module 130 quits work, and avoids damaging the outside equipment that is recharged.
In an embodiment, control module 140 also can be carried out initialization process to other modules in the charge-discharge controller of portable power source after receiving control command, avoids the interference of historical operation therein.Control module 140 is after carrying out initialization process, and whether the DC voltage that judgement discharges and recharges port 110 inputs meets charge condition.
The charge-discharge controller of above-mentioned portable power source, control module 140 is after receiving control command, whether the DC voltage that judgement discharges and recharges port 110 inputs meets default charge condition, if send charging control signal to the control end of charge control module 120, charge control module 120 is when receiving charging control signal, reception discharges and recharges the direct current of port 110 inputs and is exported by the output of charge control module 120, for battery 210 chargings of portable power source, portable power source is in charge mode.If discharge and recharge the DC voltage of port 110 inputs, do not meet charge condition, control module 140 sends discharge control signal to the control of discharge end of control of discharge module 130, control of discharge module 130 is when receiving discharge control signal, the direct current that the control of discharge input of control of discharge module 130 is inputted exports to and discharges and recharges port 110 after boosting and processing, make battery 210 electric discharges of portable power source, portable power source is in discharge mode.Control module 140 is controlled charge control module 120 or 130 work of control of discharge module according to the DC voltage size that discharges and recharges port 110 inputs, make battery 210 charge or discharge of portable power source, portable power source can be simultaneously in charge mode and discharge mode, avoid causing the work of portable power source internal circuitry disorderly, improved the stability in use of portable power source.
Below in conjunction with Fig. 3 A, Fig. 3 B and Fig. 3 C, the specific works principle of the charge-discharge controller of portable power source is elaborated.
In an embodiment, as shown in Figure 3A, discharge and recharge port 110 and comprise USB (universal serial bus) USB1A therein, for connecting external power adapter, input or output direct current.Discharge and recharge port 110 and also can comprise resistance R 35, resistance R 36, resistance R 37 and resistance R 38, resistance R 35 and resistance R 38 series connection, the port DM/D-of its common port connection universal serial bus interface USB1A, the power end VCC of resistance R 35 other end connection universal serial bus interface USB1A, the earth terminal GND of the other end connection universal serial bus interface USB1A of resistance R 38.Resistance R 36 and resistance R 37 series connection, the port DP/D+ of its common port connection universal serial bus interface USB1A, the power end VCC of the other end connection universal serial bus interface USB1A of resistance R 36, the earth terminal GND of the other end connection universal serial bus interface USB1A of resistance R 37.
The charge-discharge controller of portable power source comprises resistance R 27 and resistance R 28, resistance R 27 and resistance R 28 series connection, the power end VCC of the other end connection universal serial bus interface USB1A of resistance R 27, the earth terminal GND of the other end connection universal serial bus interface USB1A of resistance R 28.
Therein in an embodiment, charging control signal comprises charge switch Continuity signal and charging enable signal, as shown in Figure 3 B, charge control module 120 comprises charge switch 122 and charging chip, in the present embodiment, the battery 210 of portable power source comprises battery BAT1 and battery BAT2, charging chip comprises chip U5 and chip U6, respectively battery BAT1 and battery BAT2 is carried out to Charge Management.The quantity that is appreciated that charging chip can be adjusted according to the quantity of battery 210, in other embodiments, also can only with a charging chip, carry out Charge Management to battery BAT1 and battery BAT2 simultaneously.
The chip U5 of take carries out Charge Management as example to battery BAT1, the control end of charge switch 122, and the control end 8 of chip U5 is the control end of charge control module 120, is connected with control module 140.The input of charge switch 122 is the input of charge control module 120, the power end VCC of USB (universal serial bus) USB1A in connection layout 3A, and the output of charge switch 122 connects the input 4 of chip U5.The output 5 of chip U5 is the output of charge control module 120, connects the positive pole of battery BAT1, the minus earth of battery BAT1.The port one of chip U5, port 3 and port 6 ground connection, port 2 is by a grounding through resistance, and port 7 connects power end VCC28 by resistance R 16.Charge switch 122 conducting when receiving charge switch Continuity signal, access discharges and recharges the direct current of port 110 inputs, and chip U5 is when receiving charging enable signal, and the direct current of output charge switch 122 accesses is to battery BAT1, and to battery, BAT1 charges.
Further, charge switch 122 can comprise the first switching tube Q6, second switch pipe Q7 and the first bias resistance R22.The input of the first switching tube Q6 is the input of charge switch 122, and the control end that connects the first switching tube Q6 by the first bias resistance R22, the output of the first switching tube Q6 is the output of charge switch 122, the control end of second switch pipe Q7 is the control end of charge switch 122, the input of second switch pipe Q7 connects the input of second switch pipe Q6, the output head grounding of second switch pipe Q7 by the first bias resistance R22.In addition charge switch 122 also can comprise the control end current-limiting resistance R23 that is series at second switch pipe Q7.
In the present embodiment, the first switching tube Q6 is the P channel MOS tube of DTS2301 model, and second switch pipe Q7 is the NPN type triode of S8050 model.The model of the first switching tube Q6 and second switch pipe Q7 is not unique, and P channel MOS tube can replace with positive-negative-positive triode, and NPN type triode can replace by N-channel MOS pipe belt.
The concrete structure that is appreciated that charge switch 122 is not unique yet, only need meet conducting when its control end receives charge switch Continuity signal, and access discharges and recharges the direct current of port 110 inputs.
The charge-discharge controller of portable power source also can comprise capacitor C 8, and capacitor C 8 one end connect the input of charge switch 122, other end ground connection.
In an embodiment, discharge control signal comprises discharge switch Continuity signal and the enable signal that boosts therein, and as shown in Figure 3 A and Figure 3 B, control of discharge module 130 comprises discharge switch 132 and the chip U4 that boosts.
The chip U4 that boosts in the present embodiment is DC-DC(DC-to-DC) chip that boosts, battery 210 comprises BAT1 and battery BAT2, the quantity of discharge switch 132 is two, is respectively used to control the direct current output of battery BAT1 and battery BAT2.Equally, the quantity of discharge switch 132 also can be adjusted according to the quantity of battery 210, and can be also to utilize a discharge switch 132 to control the direct current output of battery BAT1 and battery BAT2 in other embodiments simultaneously.
The discharge switch 132 of the direct current output of controlling battery BAT1 of take is example, the control end of discharge switch 132, and the control end 4 of the chip U4 that boosts is the control of discharge end of control of discharge module 130, is connected with control module 140.The input of discharge switch 132 is the control of discharge input of control of discharge module 130, the positive pole that connects battery BAT1, the output of discharge switch 132 connects the input 5 of the chip U4 that boosts, the output 1 of chip U4 of boosting is the control of discharge output of control of discharge module 130, the power end VCC of connection universal serial bus interface USB1A.Control of discharge module 130 also can comprise the diode D8 that is just being connected to the chip U4 output 1 that boosts, and the output 1 of the chip U4 that boosts, by the power end VCC of diode D8 connection universal serial bus interface USB1A, prevents electric current backflow.
Control of discharge module 130 also can comprise resistance R 24, resistance R 25, resistance R 26, capacitor C 9, capacitor C 10, capacitor C 11, capacitor C 12 and inductance L 1.Boost the port 6 of chip U4 by resistance R 24 ground connection, and the output 1 of the chip U4 that boosts connects the input 5 of the chip U4 that boosts by inductance L 1.Resistance R 25 and resistance R 26 series connection, and common port connects the port 3 of the chip U4 that boosts, the negative pole of the other end connection diode D8 of resistance R 25, the other end ground connection of resistance R 26.Capacitor C 9 and capacitor C 10 one end are all connected the input 5 of the chip U4 that boosts, and the equal ground connection of the other end is carried out filtering to the direct current of input 5 accesses of the chip U4 that boosts.Capacitor C 11 and one end of capacitor C 12 are all connected the negative pole of diode D8, and the equal ground connection of the other end is carried out filtering for the direct current of output 1 output to the chip U4 that boosts.
Further, the discharge switch 132 that same direct current of take control battery BAT1 is exported is example, and discharge switch 132 can comprise the 3rd switching tube Q4, the 4th switching tube Q2 and the second bias resistance R18.The input of the 3rd switching tube Q4 is the input of discharge switch 132, connects the positive pole of battery BAT1.The control end of the 3rd switching tube Q4 connects the positive pole of battery BAT1 and battery BAT2 by the second bias resistance R18, the output of the 3rd switching tube Q4 is the output of discharge switch 132, connects the input 5 of the chip U4 that boosts.
In the present embodiment, the charge-discharge controller of portable power source also can comprise the diode D6 that is just being connected to battery BAT1 positive pole, and the diode D7 that is just being connected to battery BAT2 positive pole.The control end of the 3rd switching tube Q4 is connected with the positive pole of BAT1 with diode D6 by the second bias resistance R18, by the second bias resistance R18, is connected with the positive pole of BAT2 with diode D7.Diode D6 and diode D7, for after the 3rd switching tube Q4 conducting, prevent the positive pole of electric current backflow telegram in reply pond BAT1 and battery BAT2.
The control end of the 4th switching tube Q2 is the control end of discharge switch 132, and the input of the 4th switching tube Q2 connects the control end of the 3rd switching tube Q4, the output head grounding of the 4th switching tube Q2.
In the present embodiment, the 3rd switching tube Q4 is the P channel MOS tube of DTS2301 model, and the 4th switching tube Q2 is the NPN type triode of S8050 model.The model of the 3rd switching tube Q4 and the 4th switching tube Q2 is not unique, and P channel MOS tube can replace with positive-negative-positive triode, and NPN type triode can replace by N-channel MOS pipe belt.
The concrete structure that is appreciated that discharge switch 132 is not unique yet, only need meet conducting when its control end receives discharge switch Continuity signal.
In an embodiment, control command is low level signal therein, and as shown in Figure 3 C, control module 140 comprises control chip U1 and pressurizer U3.
Control chip U1 connection discharges and recharges the control end of port 110, charge control module 120 and the control of discharge end of control of discharge module 130, for after receiving low level signal, whether the DC voltage that judgement discharges and recharges port 110 inputs is more than or equal to predeterminated voltage value, if send charging control signal to the control end of charge control module 120, send if not discharge control signal to the control of discharge end of control of discharge module 130; And quit work after again receiving low level signal.By sending low level signal control control chip U1, whether work in the present embodiment, be appreciated that control command also can be different according to the difference of the control chip U1 adopting.
The input VIN of pressurizer U3 is used for accessing direct current, and the output VOUT of pressurizer U3 connects control chip U1, and pressurizer U3 exports control chip U1 to after the direct current voltage stabilizing of access is processed, and for control chip, U1 provides operating voltage.The port VSS ground connection of pressurizer U3, port CE connects the input VIN of pressurizer U3.In the present embodiment, the input VIN of pressurizer U3 connects battery 210 positive poles of portable power source, utilizes battery 210 to provide operating voltage for control chip U1.The output VOUT of pressurizer U3 is also as power end VCC28, for other modules in the charge-discharge controller of portable power source provide operating voltage.
Particularly, the port one 7 of control chip U1 is for receiving control command, the common port of resistance R 27 and resistance R 28 in the port 26 connection layout 3A of control chip U1, for gathering the DC voltage that discharges and recharges port 110 inputs, the control end 4 of chip U4 boosts in the port 22 connection layout 3A of control chip U1, while being less than predeterminated voltage value for the DC voltage discharging and recharging port 110 inputs, send electric discharge enable signal.Port DP/D+ and the port DM/D-of USB (universal serial bus) USB1A in the port 8 of control chip U1 and port 7 difference connection layout 3A.
The control end of charge switch 122 in the port 40 connection layout 3B of control chip U1, for when discharging and recharging the DC voltage of port 110 input and be more than or equal to predeterminated voltage value, sends charge switch Continuity signal.The port 31 connection layout 3B chips U5 of control chip U1 and the control end 8 of chip U6, for when discharging and recharging the DC voltage of port 110 input and be more than or equal to predeterminated voltage value, send charging enable signal.In the port one 9 of control chip U1 and port 20 difference connection layout 3B, the control end of two discharge switches 132, while being less than predeterminated voltage value for the DC voltage discharging and recharging port 110 inputs, sends discharge switch Continuity signal.The port 7 of the port 32 of control chip U1 and 35 difference connection layout 3B chips U5 and chip U6.
Control module can comprise capacitor C 2, capacitor C 3 and capacitor C 4.The port 3 of control chip U1, port 4 and port 6 are all connected the output of pressurizer U3, and by capacitor C 2 ground connection.The port one 1 of control chip U1, port one 3 and port one 4 are all connected the output of pressurizer U3, and by capacitor C 3 ground connection.The port 24 of control chip U1 connects the output of pressurizer U3, and the internal electrical source 5 of control chip U1 is by capacitor C 4 ground connection, the port one 5 of control chip U1 and 16 ground connection.
Control module also can comprise diode D5, capacitor C 1 and resistance R 12, the positive pole connection of diode D5 discharges and recharges port 110, be specially the power end VCC of USB (universal serial bus) USB1A in connection layout 3A, the negative pole of diode D5 connects input VIN and the port CE of pressurizer U3 by resistance R 12.Not enough or break down while not exporting direct current at battery 210 electric weight of portable power source, pressurizer U3 also can utilize and discharge and recharge other module for power supply in the charge-discharge controller that the direct current of port 110 access is portable power source, when to battery 210 charging, also can reduce the electric quantity consumption of battery 210, accelerate charge efficiency.
Control module also can comprise memory U2, resistance R 5 and capacitor C 5, and in the present embodiment, memory is EEPROM(Electrically Erasable Programmable Read-Only Memory, EEPROM (Electrically Erasable Programmable Read Only Memo)).The port SCL of memory U2 and port SDA are connected respectively port one and the port 2 of control chip U1, and the port SDA of memory U2 connects power end VCC28 by resistance R 5.The port E0 of memory U2, port E1, port E2, port WC and the equal ground connection of port GND, the port VCC of memory U2 connects power end VCC28, and by capacitor C 5 ground connection.Memory U2, for storing the program of controlling control chip U1 work, is convenient to program to debug.Be appreciated that after the success of program furnishing, can directly deposit control chip U1 in, and without being stored in again memory U2.
Therein in an embodiment, the charge-discharge controller of portable power source comprises sending module 150, and as shown in Figure 3 C, sending module 150 specifically comprises touch-switch K1, one end of touch-switch K1 connects the port one 7 of control chip U1, the other end ground connection of touch-switch K1.Conducting when touch-switch K1 is pressed, the port one 7 of control chip U1 is dragged down, and control chip U1 starts working; When touch-switch K1 is pressed again, the port one 7 of control chip U1 is dragged down again, and control chip U1 quits work.By touch-switch K1, control control chip U1 and whether work, convenient and swift.
Continuation is with reference to Fig. 3 C, and the charge-discharge controller of portable power source comprises voltage detection module 160 and display module 170.
In the present embodiment, display module 170 comprises display lamp D1, display lamp D2, display lamp D3, display lamp D4, resistance R 1, resistance R 2, resistance R 3 and resistance R 4, and in the present embodiment, display lamp D1, display lamp D2, display lamp D3 and display lamp D4 are LED lamp.The positive pole of display lamp D1, display lamp D2, display lamp D3 and display lamp D4 is all connected power end VCC28, the negative pole of display lamp D1, display lamp D2, display lamp D3 and display lamp D4, is connected respectively port 36, port 37, port 38 and the port 39 of control chip U1 with resistance R 4 by resistance R 1, resistance R 2, resistance R 3.
The DC voltage value of the output of the battery 210 that control chip U1 gathers according to voltage detection module 160, controls display module 170 and shows corresponding presupposed information, also can quit work during lower than setting voltage value in DC voltage value.Can be specifically:
When the output voltage of battery 210 be quota voltage 75% to 100% time, it is entirely bright that control chip U1 controls display lamp D1, display lamp D2, display lamp D3 and display lamp D4.
When the output voltage of battery 210 be quota voltage 50% to 75% time, control chip U1 control display lamp D1, display lamp D2 and display lamp D3 bright.
When the output voltage of battery 210 be quota voltage 25% to 50% time, control chip U1 control display lamp D1 and display lamp D2 bright.
When the output voltage of battery 210 lower than quota voltage 25% time, control chip U1 controls display lamp D1 flicker.
When the output voltage of battery 210 is during lower than 3.0V, control chip U1 quits work.
Quota voltage refer to the output voltage of battery 210 charging after saturated, is appreciated that concrete control mode in an above just embodiment, is not unique.
Therein in an embodiment, the charge-discharge controller of portable power source comprises current monitoring module 180, as shown in Figure 3A, current monitoring module 180 specifically can comprise monitoring chip U7, resistance R 29, resistance R 30, resistance R 31, resistance R 32, resistance R 33, resistance R 34, resistance R 39, resistance R 41, resistance R 42, capacitor C 13, capacitor C 15, switching tube Q8 and switching tube Q9.In the present embodiment, switching tube Q8 and switching tube Q9 are NPN type triode.
The port one contact resistance R27 of monitoring chip U7 and the common port of resistance R 28, and be connected the port 3 of monitoring chip U7 with capacitor C 13 by resistance R 29, the earth terminal GND of the port 2 connection universal serial bus interface USB1A of monitoring chip U7, the port 3 of monitoring chip U7 is as the output of current monitoring module 180, the port 30 of control chip U1 in connection layout 3C.Resistance 30, capacitor C 15 and resistance R 31 series connection, and the other end of resistance R 30 connects the port 3 of monitoring chip U7, capacitor C 15 is connected the port 5 of monitoring chip U7 with the common port of resistance R 31, the earth terminal GND of the other end connection universal serial bus interface USB1A of resistance R 31.
After resistance R 32, resistance R 33 and resistance R 34 are in parallel, one end, as the input of current monitoring module 180, connects the port 4 of monitoring chip U7, and by resistance R 26, resistance R 25, connects the negative pole of diode D8.The earth terminal GND of the other end connection universal serial bus interface USB1A of resistance R 32, resistance R 33 and resistance R 34 parallel connections, and the port 23 of control chip U1 in connection layout 3C.The output of the port 4 connecting valve pipe Q8 of monitoring chip U7, the control end of the port 5 connecting valve pipe Q8 of monitoring chip U7, and by the control end of resistance R 41 connecting valve pipe Q9.The power end VCC of the port 6 connection universal serial bus interface USB1A of monitoring chip U7.The port 25 of control chip U1 in the input connection layout 3C of switching tube Q8, and connect power end VCC28 by resistance R 39.The control end of switching tube Q9 is by resistance R 42 ground connection, and the input of switching tube Q9 connects the control end 4 of the chip U4 that boosts, the output head grounding of switching tube Q9.
Monitoring chip U7 detects the galvanic current value of output 1 output of the chip U4 that boosts by resistance R 32, resistance R 33 and resistance R 34, and sends feedback signal to the port 30 of control chip U1 when current value surpasses predetermined current value.
The charge-discharge controller of portable power source also can comprise diode D20, the power end VCC of the anodal connection universal serial bus interface USB1A of diode D20, the input VIN of pressurizer U3 in negative pole connection layout 3C.Be that in the direct current that provides another circuit utilization to discharge and recharge port 110 access in the present embodiment charge-discharge controller that is portable power source, each module provides operating voltage.
The present invention also provides a kind of charge/discharge control method of portable power source, as shown in Figure 4, comprises the following steps:
Step S110: receive control command, whether the DC voltage that judgement discharges and recharges port input meets default charge condition.If so, carry out step S120, carry out if not step S130.
Specifically can utilize control module to receive control command, and carry out decision operation.Discharge and recharge port and be the interface that portable power source discharges and recharges, can adopt USB interface, specifically can only include a port, portable power source discharges and recharges by same port.Discharging and recharging port can be also to comprise two ports, is used separately as charging port and electric discharge port.Charge condition can be different according to the difference that discharges and recharges port concrete structure.If discharge and recharge port, only include a port, charge condition can be that the DC voltage that discharges and recharges port input is more than or equal to predeterminated voltage value, and predeterminated voltage value can be adjusted according to actual conditions.If discharge and recharge port, comprise charging port and two ports of electric discharge port, charge condition can be that electric discharge port is inputted without direct current.
Step S120: send charging control signal.
Step S130: send discharge control signal.
Can utilize equally control module to send charging control signal and discharge control signal.In the present embodiment, charging control signal can be sent to charge control module, discharge control signal is sent to control of discharge module.
Step S140: when receiving charging control signal, receive and export the direct current that discharges and recharges port input.
Charge control module is connected to the anode that discharges and recharges port and portable power source.Charge control module, when receiving charging control signal, accesses and exports and discharge and recharge the direct current of port input to the battery of portable power source, and battery is charged, and portable power source is in charge mode.
Step S150: when receiving discharge control signal, the direct current of input is boosted and exports to and discharge and recharge port after processing.
Control of discharge module is connected to the anode that discharges and recharges port and portable power source.Control of discharge module is when receiving discharge control signal, and the direct current that the battery of portable power source is exported exports to and discharges and recharges port after boosting and processing, and makes the battery discharge of portable power source, and portable power source is in discharge mode.
Charge condition, charging control signal and discharge control signal, and similar in the specific works mode of control module, charge control module and control of discharge module and the charge-discharge controller of principle and above-mentioned portable power source, and therefore not to repeat here.
The charge/discharge control method of above-mentioned portable power source, after receiving control command, whether the DC voltage that judgement discharges and recharges port input meets default charge condition, if send charging control signal.When receiving charging control signal, receive the direct current the output that discharge and recharge port input, be the battery charging of portable power source, portable power source is in charge mode.If discharge and recharge the DC voltage of port input, do not meet charge condition, send discharge control signal.When receiving discharge control signal, the direct current of input is boosted and exports to and discharge and recharge port after processing, make the battery discharge of portable power source, portable power source is in discharge mode.According to the DC voltage size that discharges and recharges port input, control the battery charge or discharge of portable power source, portable power source can be simultaneously in charge mode and discharge mode, avoid causing the work of portable power source internal circuitry disorderly, improved the stability in use of portable power source.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a charge-discharge controller for portable power source, is characterized in that, comprising:
Discharge and recharge port;
Charge control module, comprise input, output and control end, the input of described charge control module discharges and recharges port described in connecting, described charge control module, when the control end of described charge control module receives charging control signal, discharges and recharges the direct current of port input described in reception and is exported by the output of described charge control module;
Control of discharge module, comprise control of discharge input, control of discharge output and control of discharge end, the control of discharge output of described control of discharge module discharges and recharges port described in connecting, described control of discharge module, for when the control of discharge termination of described control of discharge module is received discharge control signal, discharges and recharges port described in the direct current that the control of discharge input of described control of discharge module is inputted exports to after boosting and processing;
Control module, described in connection, discharge and recharge the control end of port, charge control module and the control of discharge end of control of discharge module, for after receiving control command, whether the DC voltage that discharges and recharges port input described in judgement meets default charge condition, if send described charging control signal to the control end of described charge control module, send if not described discharge control signal to the control of discharge end of described control of discharge module.
2. the charge-discharge controller of portable power source according to claim 1, is characterized in that, described control command is low level signal, and described control module comprises control chip and pressurizer,
Described control chip discharges and recharges the control end of port, charge control module and the control of discharge end of control of discharge module described in connecting, for after receiving described low level signal, whether the DC voltage that discharges and recharges port input described in judgement is more than or equal to predeterminated voltage value, if send described charging control signal to the control end of described charge control module, send if not described discharge control signal to the control of discharge end of described control of discharge module; And quit work after again receiving described low level signal;
The input access direct current of described pressurizer, the output of described pressurizer connects described control chip, and described pressurizer exports described control chip to after the direct current voltage stabilizing of access is processed, for described control chip provides operating voltage.
3. the charge-discharge controller of portable power source according to claim 2, is characterized in that, described control module also comprises diode, described in the positive pole of described diode connects, discharges and recharges port, and the negative pole of described diode connects the input of described pressurizer.
4. the charge-discharge controller of portable power source according to claim 1, is characterized in that, described charging control signal comprises charge switch Continuity signal and charging enable signal, and described charge control module comprises charge switch and charging chip,
The control end that the control end of described charge switch and the control end of charging chip are described charge control module, the input of described charge switch is the input of described charge control module, the output of described charge switch connects the input of described charging chip, the output of described charging chip is the output of described charge control module, the conducting when receiving described charge switch Continuity signal of described charge switch, described in access, discharge and recharge the direct current of port input, described control chip is when receiving described charging enable signal, export the direct current of described charge switch access.
5. the charge-discharge controller of portable power source according to claim 4, is characterized in that, described charge switch comprises the first switching tube, second switch pipe and the first bias resistance,
The input of described the first switching tube is the input of described charge switch, and by described the first bias resistance, connects the control end of described the first switching tube, the output that the output of described the first switching tube is described charge switch,
The control end of described second switch pipe is the control end of described charge switch, and the input of described second switch pipe connects the input of described second switch pipe, the output head grounding of described second switch pipe by described the first bias resistance.
6. the charge-discharge controller of portable power source according to claim 1, is characterized in that, described discharge control signal comprises discharge switch Continuity signal and the enable signal that boosts, and described control of discharge module comprises discharge switch and the chip that boosts,
The control end of the control end of described discharge switch and the chip that boosts is the control of discharge end of described control of discharge module, the input of described discharge switch is the control of discharge input of described control of discharge module, the input of chip boosts described in the output of described discharge switch connects, the output of the described chip that boosts is the control of discharge output of described control of discharge module, the conducting when receiving described discharge switch Continuity signal of described discharge switch, access the direct current of the input reception of described discharge switch, described control chip is when boosting enable signal described in receiving, the direct current of described discharge switch access is boosted described in processing and exporting to and discharges and recharges port.
7. the charge-discharge controller of portable power source according to claim 6, is characterized in that, described discharge switch comprises the 3rd switching tube, the 4th switching tube and the second bias resistance,
The input of described the 3rd switching tube is the input of described discharge switch, and by described the second bias resistance, connects the control end of described the 3rd switching tube, the output that the output of described the 3rd switching tube is described discharge switch,
The control end of described the 4th switching tube is the control end of described discharge switch, and the input of described the 4th switching tube connects the control end of described the 3rd switching tube, the output head grounding of described the 4th switching tube.
8. the charge-discharge controller of portable power source according to claim 1, is characterized in that, also comprises voltage detection module and display module,
Described voltage detection module comprises input and output, and the output of described voltage detection module connects described control module, and described display module connects described control module;
Described voltage detection module is for the galvanic magnitude of voltage that gathers the input of described voltage detection module and receive and be sent to described control module, and the galvanic magnitude of voltage that described control module sends according to described voltage detection module is controlled described display module and shown corresponding presupposed information.
9. the charge-discharge controller of portable power source according to claim 1, is characterized in that, also comprises current monitoring module,
Described current monitoring module comprises input and output, the input of described current monitoring module connects the control of discharge output of described control of discharge module, the output of described current monitoring module connects described control module, whether described current monitoring module surpasses predetermined current value for detection of the galvanic current value of described control of discharge module output, if send feedback signal to described control module, described control module stops sending described discharge control signal after receiving described feedback signal.
10. a charge/discharge control method for portable power source, is characterized in that, comprises the following steps:
Receive control command, whether the DC voltage that judgement discharges and recharges port input meets default charge condition;
If so, send charging control signal;
If not, send discharge control signal;
When receiving described charging control signal, described in receiving and exporting, discharge and recharge the direct current of port input;
When receiving described discharge control signal, the direct current of input is boosted described in exporting to after processing and discharges and recharges port.
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