CN107546814A - A kind of charging base and electronic product - Google Patents

A kind of charging base and electronic product Download PDF

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Publication number
CN107546814A
CN107546814A CN201710962927.7A CN201710962927A CN107546814A CN 107546814 A CN107546814 A CN 107546814A CN 201710962927 A CN201710962927 A CN 201710962927A CN 107546814 A CN107546814 A CN 107546814A
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CN
China
Prior art keywords
charging
electronic
control unit
base
circuit
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Pending
Application number
CN201710962927.7A
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Chinese (zh)
Inventor
任思魁
潘俊杰
郄勇
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Goertek Techology Co Ltd
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Goertek Techology Co Ltd
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Priority to CN201710962927.7A priority Critical patent/CN107546814A/en
Publication of CN107546814A publication Critical patent/CN107546814A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a kind of charging base and electronic product, detects the connection of the charging pins of charging base and the charging pins of electronic product by inserting detection unit, and export detection signal to the insertion test side of main control unit;Main control unit is according to the detection signal for inserting test side, generate charging control signal and export to Charge Management unit, Charge Management unit control electric energy output end output electric energy, charged for electronic product, solve the problems, such as that electronic product charging is inconvenient, easily electronic product can be charged using charging base, extend the usage time of electronic product, meet user's request, improve user experience.

Description

A kind of charging base and electronic product
Technical field
The invention belongs to charging technique field, is to be related to a kind of charging base and electronic product specifically.
Background technology
Intelligent watch is greatly favored by consumers because function, good market prospect.
But because intelligent watch function is more, power consumption is more severe, cause stand-by time shorter, it is necessary to which regular fill Electricity.But user go on business in tourism process, can not timely and conveniently find external power supply, cause intelligent watch charging inconvenience, nothing Method meet user go on business in tourism the long period use demand, usage experience is poor.
The content of the invention
The invention provides a kind of charging base, solves the problems, such as that electronic product charging is inconvenient.
In order to solve the above technical problems, the present invention is achieved using following technical scheme:
A kind of charging base, including main control unit, base battery, Charge Management unit, insertion detection unit, two chargings draw Pin:First charging pins, the second charging pins, a pair of two charging pins one of described two charging pins and electronic product Should;The electrical energy inputs of the Charge Management unit are connected with base battery, and the electric energy output end of the Charge Management unit connects Connect the first charging pins of charging base, the second charging pins ground connection of the charging base;The insertion detection unit detection Whether is the connection of the charging pins of charging base and the charging pins of electronic product, and exports detection signal to main control unit Insert test side;The main control unit is according to the detection signal of insertion test side, output charging control signal to Charge Management Unit, the Charge Management unit according to the charging control signal that receives control electric energy output end output electric energy whether.
Further, the charging base also includes at least one magnet, the magnet polarities of the magnet and electronic product Conversely;The magnet of the charging base is together with the magnet attraction of electronic product, charging pins and the electricity of the charging base The charging pins of sub- product are corresponding to be connected.
Further, the magnet of the charging base is laid with three, laying triangular in shape;With three of electronic product Magnet corresponds adhesive.
Further, the insertion detection unit includes magnetic field sensor, and the magnetic field sensor detects magnetic flux, and Detection signal is exported to the insertion test side of main control unit.
Further, the insertion detection unit includes first switch circuit;Second charging of the charging base is drawn Pin is grounded by the first current-limiting resistance, and second charging pins are connected first switch with the connecting node of the first current-limiting resistance The control terminal of circuit, one end of the switch ways of the first switch circuit is by the second current-limiting resistance connect base battery, separately One end is grounded;The switch ways of the first switch circuit are connected inserting for main control unit with the connecting node of the second current-limiting resistance Enter test side;The anode of the base battery connection diode, the negative electrode of the diode connect the first charging pins.
Preferably, it is in series with the 5th current-limiting resistance between two charging pins of electronic product.
Further, the Charge Management unit includes sub-control unit, the 3rd on-off circuit, the 4th on-off circuit, electricity Voltage conversion circuit, external power interface;The external power interface is connected with external power supply;And the external power interface passes through The switch ways of 3rd on-off circuit are connected with electric energy output end;The input of the voltage conversion circuit connects with electrical energy inputs Connect, the output end of the voltage conversion circuit is connected by the switch ways of the 4th on-off circuit with electric energy output end;The son Control unit receives the charging control signal that main control unit is sent, the 3rd on-off circuit of control, the break-make of the 4th on-off circuit.
Further, the second charging pins of the charging base are grounded by the switch ways of second switch circuit, The break-make of the main control unit control second switch circuit.
Further, the switch ways of the second switch circuit are grounded by the 4th current-limiting resistance;The charging bottom Seat also includes operational amplifier, and the in-phase input end of the operational amplifier connects second switch circuit and the 4th current-limiting resistance Connecting node, the inverting input connection reference voltage of the operational amplifier, the output end connection master of the operational amplifier Control unit;The signal that the main control unit conveys according to the operational amplifier received, generation charging control signal are simultaneously defeated Go out to the sub-control unit of PMU, control voltage change-over circuit it is whether enabled.
Based on the design of above-mentioned charging base, the invention also provides a kind of electronics production using charging base design Product, including charger, rechargeable battery, two charging pins, and described charging base;Described two charging pins with it is described The charging pins of charging base are corresponded, and described two charging pins are connected with charger, and the charger is rechargeable battery Charging.
Compared with prior art, the advantages and positive effects of the present invention are:The charging base and electronic product of the present invention, lead to The connection of the charging pins of insertion detection unit detection charging base and the charging pins of electronic product is crossed, and exports detection signal To the insertion test side of main control unit;Main control unit generates charging control signal according to the detection signal of insertion test side And export to Charge Management unit, Charge Management unit control electric energy output end output electric energy, charge, solve for electronic product The problem of electronic product charging is inconvenient, easily can be charged using charging base to electronic product, extend electronic product Usage time, meet user's request, improve user experience.
After the detailed description of embodiment of the present invention is read in conjunction with the figure, the other features and advantages of the invention will become more Add clear.
Brief description of the drawings
Fig. 1 is a kind of circuit block diagram of embodiment of charging base proposed by the invention;
Fig. 2 is a kind of structural representation of embodiment of charging base proposed by the invention;
Fig. 3 is the structural representation of another embodiment of charging base proposed by the invention;
Fig. 4 is a kind of circuit theory diagrams of embodiment of charging base proposed by the invention;
Fig. 5 is the circuit theory diagrams of another embodiment of charging base proposed by the invention.
Reference:
1st, electronic product;2nd, charging base;3rd, charging pins;4th, magnet;5th, magnetic field sensor.
Embodiment
The embodiment of the present invention is described in more detail below in conjunction with the accompanying drawings.
The charging base 2 of embodiment one, the present embodiment, mainly include main control unit MCU, base battery, Charge Management Unit, insertion detection unit, two charging pins 3:First charging pins P1 ', the second charging pins P2 ', two charging pins P1 ', P2 ' and electronic product 1 two charging pins P1, P2 are corresponded.The electrical energy inputs and base of Charge Management unit Battery connects, the first charging pins P1 ' of the electric energy output end connection charging base of Charge Management unit, and the second of charging base Charging pins P2 ' is grounded;Insert the connection of the charging pins of detection unit detection charging base and the charging pins of electronic product Whether, and detection signal is exported to main control unit MCU insertion test side AIO1;Main control unit MCU detects according to insertion AIO1 detection signal is held, charging control signal is generated and exports to Charge Management unit, Charge Management unit is according to receiving Charging control signal control electric energy output end output electric energy whether, referring to shown in Fig. 1 to Fig. 4.
When insertion detection unit detect charging pins P1 ', the P2 ' of charging base and the charging pins P1 of electronic product, When P2 connects one to one, insertion detection unit exports low level signal to main control unit MCU insertion test side AIO1, main Control unit MCU generates charging control signal and sent to Charge Management unit, and Charge Management unit is according to the charging received The electric energy of control signal control electric energy output end output base battery, the electric energy of base battery pass through Charge Management unit, P1, P2 And P1 ', P2 ' charge for electronic product, solve the problems, such as that electronic product charging is inconvenient, can be easily right using charging base Electronic product is charged, and extends the usage time of electronic product, meets user's request, improves user experience.
When main control unit MCU insertion test side AIO1 is high level, the electric energy output end of Charge Management unit is not Electric energy is exported, is not charged for electronic product.
Charging pins P1 ', the P2 ' of charging base are generally located on the upper surface of charging base, are typically chosen POGO- PIN, in order to which the charging pins with electronic product dock.
In the present embodiment, charging base 2 also includes at least one magnet 4, the polarity of magnet 4 and the magnet of electronic product Opposite polarity, the quantity of magnet 4 are identical with the quantity of the magnet of electronic product.When electronic product is placed on charging base, fill The magnet 4 of electric base together with the magnet attraction of electronic product, draw by the charging of the charging pins and electronic product of charging base Pin connects one to one.It is stably connected with by the adhesive charging base of magnet with electronic product, so that charging base Charging pins and electronic product charging pins correspond be stably connected with, ensure charging stability and reliability.
In order to further improve the connective stability of charging base and electronic product, the magnet of the charging base is laid with Three, laying triangular in shape;When electronic product is placed on charging base, three magnet of charging base and the three of electronic product Individual magnet corresponds adhesive, and the charging pins of charging base and the charging pins of electronic product connect one to one.
In the present embodiment, insertion detection unit includes magnetic field sensor 5, and magnetic field sensor 5 is inserted with main control unit Enter test side AIO1 connections.Magnetic field sensor detects magnetic flux, and exports detection signal to the insertion test side of main control unit AIO1。
When the magnet of charging base and the magnet of electronic product are not pulled together, magnetic field sensor is not detected by magnetic flux The change of amount, output high level illustrate that electronic product is not placed on charging base to the insertion test side AIO1 of main control unit On.
When the magnet of charging base is together with the magnet attraction of electronic product, magnetic flux is changed, and magnetic field passes Sensor detects magnetic flux change, the insertion test side AIO1 of output low level to main control unit, illustrates that electronic product is placed On charging base, P1 ', P2 ' and P1, P2 connect one to one, and it is electronic product that main control unit, which controls Charge Management unit, Charging.
The change of magnetic flux is detected by magnetic field sensor, and then detects the charging pins and electronic product of charging base Charging pins connection whether, it is easy to detect, be easy to implement.
In the present embodiment, magnetic field sensor is preferably Hall sensor, and stable performance, cost are low.
In the present embodiment, the Charge Management unit is mainly opened including sub-control unit, the 3rd on-off circuit Q3, the 4th Powered-down road Q4, voltage conversion circuit, external power interface etc..External power interface is connected with external power supply, and the external electricity Source interface is connected by the 3rd on-off circuit Q3 switch ways with electric energy output end;That is, the electric energy that external power supply provides passes through External power interface, the 3rd on-off circuit Q3 switch ways are transmitted to electric energy output end VCHG, and then charged pin is electricity Sub- product charging.The input of voltage conversion circuit is connected with electrical energy inputs, and the output end of voltage conversion circuit passes through the 4th On-off circuit Q4 switch ways are connected with electric energy output end VCHG;That is, the electric energy that base battery provides passes through electrical energy inputs Transmit to voltage conversion circuit, after voltage conversion, the switch ways through the 4th on-off circuit Q4 are transmitted to electric energy output end VCHG, then charged pin is electronic product charging.Sub-control unit receives the charging control signal that main control unit is sent, Control the 3rd on-off circuit Q3, the 4th on-off circuit Q4 break-make.The electric energy that external power supply provides can be connect by external power supply Mouth, Charge Management unit are that base battery charges.In the present embodiment, the 3rd on-off circuit Q3, the 4th on-off circuit Q4 are Low conduction voltage drop switching tube, such as PMOS.
The external power interface of the present embodiment is Micro-USB interfaces, can be directly connected to dc source, is electronic product Charging.AC adapter can also be set in Charge Management unit, and the alternating current that external AC power supply provides is through external power supply Interface is transmitted to AC adapter, after AC adapter carries out rectification and voltage conversion to the alternating current received, is passed through Q3 Electric energy output end VCHG is transported to, is charged for electronic product.
Main control unit is connected with external power interface, and whether detection external power interface is inserted with external power supply.
When P1 ', P2 ' and P1, P2 connect one to one(I.e. when the insertion test side AIO1 of main control unit is low level When), when main control unit detects external power interface inserted with external power supply, the output end PIO2 outputs of main control unit High level, output end PIO3 export low level to sub-control unit, and sub-control unit control voltage change-over circuit does not enable, and controls Make the 4th on-off circuit Q4 disconnect, the 3rd on-off circuit Q3 conductings, the electric energy that external power supply provides passes through external power interface, the Three on-off circuit Q3 switch ways are transmitted to electric energy output end VCHG, and then charged pin is electronic product charging.
When P1 ', P2 ' and P1, P2 connect one to one, when main control unit detects that external power interface is not inserted into During external power supply, the output end PIO2 outputs low level of main control unit, output end PIO3 output high level to sub-control unit, Sub-control unit control voltage change-over circuit enables, and controls the 4th on-off circuit Q4 conductings, the 3rd on-off circuit Q3 to disconnect, bottom The electric energy that seat battery provides is transmitted to electric energy output end by the switch ways of voltage conversion circuit, the 4th on-off circuit Q4 VCHG, then charged pin is electronic product charging.
In the present embodiment, the cell voltage of base battery is 3.8V, and voltage conversion circuit is booster circuit, by 3.8V liters Press as 5V, charged for electronic product.
In the present embodiment, for the ease of controlling the break-make of the charge circuit of electronic product, the second of charging base charges Pin P2 ' is grounded by second switch circuit Q2 switch ways, main control unit control second switch circuit Q2 break-make.When When P1 ', P2 ' connect one to one with P1, P2(I.e. when the insertion test side AIO1 of main control unit is low level), main control Unit control second switch circuit Q2 conductings so that the charge circuit conducting of electronic product;Work as P1 ', P2 ' with P1, P2 not connect When connecing(I.e. when the insertion test side AIO1 of main control unit is high level), main control unit control second switch circuit Q2 passes It is disconnected so that the charge circuit cut-out of electronic product.In the present embodiment, second switch circuit is high conduction voltage drop switching tube, such as NMOS tube.
In the present embodiment, second switch circuit Q2 switch ways are grounded by the 4th current-limiting resistance R4;Charging base Also include operational amplifier OP1, operational amplifier OP1 in-phase input end connection second switch circuit Q2 and the 4th current-limiting resistance R4 connecting node, operational amplifier OP1 inverting input connection reference voltage VREF(Such as 1V), the output of operational amplifier End connection main control unit;The signal that main control unit conveys according to the operational amplifier OP1 received, produce charge control letter Number and export to PMU sub-control unit, control voltage change-over circuit it is whether enabled.
When base battery charges for electronic product, second switch circuit Q2 and the 4th current-limiting resistance R4 connection section It is high level at point, more than reference voltage VREF, operational amplifier OP1 exports high level to the input of main control unit AIO2, the output end PIO3 of main control unit export high level to sub-control unit, sub-control unit control voltage change-over circuit Keep enabled state.
When electronic product is fully charged, now the electric current on charge circuit is 0, second switch circuit Q2 and the 4th current limliting electricity It is low level to hinder at R4 connecting node, and less than reference voltage VREF, operational amplifier OP1 exports low level to main control unit Input AIO2, the output end PIO3 of main control unit exports low level to sub-control unit, sub-control unit control voltage Change-over circuit does not enable, and controls second switch circuit Q2 to disconnect.
Because voltage conversion circuit is in enabled state, 4mA or so quiescent current can be produced, the current value is larger, disappears The electric energy of base battery is consumed, influences the stand-by time of charging base, therefore, when the use of base battery being that electronic product charges, When electronic product is fully charged, control voltage change-over circuit does not enable, to reduce power consumption, extend the usage time of rechargeable battery with And the stand-by time of charging base.
The course of work of charging base is as follows, and under default conditions, Q2, Q3, Q4 are in off state.
(1)When insertion detection unit detects magnetic flux change, output low level to the insertion test side of main control unit AIO1, illustrate that electronic product is placed on charging base, P1 ', P2 ' and P1, P2 connect one to one;The output of main control unit PIO1 is held to export high level to second switch circuit Q2 control terminal, second switch circuit Q2 conductings.
(2)Main control unit detects whether to access external power supply, if now access has an external power supply, main control unit it is defeated Go out to hold PIO2 outputs high level, output end PIO3 to export low level to sub-control unit, sub-control unit control voltage conversion electricity Road does not enable, and controls the 4th on-off circuit Q4 to disconnect, the 3rd on-off circuit Q3 conductings, and the electric energy that external power supply provides passes through outer Connect power interface, the 3rd on-off circuit Q3 switch ways are transmitted to electric energy output end VCHG, be then transmit to charging pins, be Electronic product charges.Charge path:External power supply → external power interface → Q3 → electric energy output end VCHG → P1 ' → P1 → electricity Sub- product charger → P2 → P2 ' → Q2 → R4 → GND.
If not accessing external power supply now, the output end PIO2 outputs low level of main control unit, output end PIO3 outputs High level to sub-control unit, sub-control unit control voltage change-over circuit enables, and controls the 4th on-off circuit Q4 conductings, the Three on-off circuit Q3 are disconnected, and the electric energy that base battery provides is boosted by voltage conversion circuit, then through the 4th switch electricity Road Q4 switch ways are transmitted to electric energy output end VCHG, are then transmit to charging pins, are charged for electronic product.Charging circuit Footpath:Base battery → voltage conversion circuit → Q4 → electric energy output end VCHG → P1 ' → P1 → electronic product charger → P2 → P2’ →Q2→R4→GND。
In both charging processes, voltage, the electricity of operational amplifier OP1 in-phase input end are formed above resistance R4 Pressure is more than the voltage of inverting input, the AIO2 of operational amplifier OP1 output high level to main control unit.
(3)When electronic product is fully charged, the electric current on charge circuit is 0, operational amplifier OP1 in-phase input end Voltage is less than the voltage of inverting input, and operational amplifier OP1 exports low level to the AIO2 of main control unit;Main control unit Output end PIO3 export low level to sub-control unit, sub-control unit control voltage change-over circuit does not enable, to reduce work( Consumption, extend the stand-by time of charging base.And second switch circuit Q2 is controlled to disconnect.
Therefore, the charging base of the present embodiment, charging when both having met external power supply access to electronic product are again full When foot is without external power supply, charging of the base battery to electronic product, it is easy to charge to electronic product, extends electronics production The usage time of product, meets user's request, improves user experience.
Based on the design of above-mentioned charging base, the present embodiment also proposed a kind of electronic product, mainly including charger, fill Battery, two charging pins P1 and P2, and described charging base.Two charging pins P1, P2 and charging base fill Electric pin P1 ', P2 ' are corresponded, and two charging pins P1, P2 and charger connect, and charger charges for rechargeable battery.
By designing described charging base in electronic product, it is easy to the charging of electronic product, improves electronic product Usage time, meet the use demand of user, improve the usage experience of user.
Described electronic product can be wrist-watch, mobile phone, PAD, Intelligent worn device etc..
Embodiment two, the charging base of the present embodiment and the design for being to insert detection unit in place of the difference of embodiment one Difference, the insertion detection unit of the present embodiment are built using component.The other structures of the charging base of the present embodiment are set Meter, identical with embodiment one, here is omitted.
The insertion detection unit of the present embodiment, mainly include first switch circuit Q1;Second charging pins of charging base P2 ' is grounded by the first current-limiting resistance R1, and the second charging pins P2 ' is connected first with the first current-limiting resistance R1 connecting node On-off circuit Q1 control terminal, one end of first switch circuit Q1 switch ways pass through the second current-limiting resistance R2 connect bases electricity Pond, other end ground connection;First switch circuit Q1 switch ways are connected main control list with the second current-limiting resistance R2 connecting node First MCU insertion test side AIO1;Base battery passes through current-limiting resistance R3 connection diodes D1 anode, diode D1 negative electrode The first charging pins P1 ' of charging base is connected, it is shown in Figure 5.In the present embodiment, first switch circuit Q1 turns on to be high Pressure drop switch pipe, such as NMOS tube.
As charging pins P1 ', the P2 ' of charging base and charging pins P1, P2 of electronic product not connected, first switch It is low level that circuit Q1 control terminal is drawn by resistance R1, and first switch circuit Q1 is turned off, main control unit MCU insertion test side AIO1 is high level, illustrates that electronic product is not placed on charging base.
When charging pins P1 ', the P2 ' of charging base and charging pins P1, P2 of electronic product connect one to one, if Now access has an external power supply, control the 3rd on-off circuit Q3 conductings, the electric current that external power supply provides by external power interface, Q3, electric energy output end VCHG, P1 ', P1, charger charger, P2, P2 of electronic product ', first switch circuit Q1 control End, the first current-limiting resistance R1 flow into ground, and first switch circuit Q1 control terminal is high level, and first switch circuit Q1 switch leads to Road turns on;The electric current of base battery flows into ground by the second current-limiting resistance R2, first switch circuit Q1 switch ways, and first opens The insertion that powered-down road Q1 switch ways and the second current-limiting resistance R2 connecting node export low level to main control unit MCU is examined End AIO1 is surveyed, illustrates that electronic product is placed on charging base, P1 ', P2 ' and P1, P2 connect one to one, Q3 conductings, external Power supply charges for electronic product.
If not accessed external power supply now, base battery provide electric current pass through resistance R3, diode D1, P1 ', P1, Charger charger, P2, P2 of electronic product ', first switch circuit Q1 control terminal, the first current-limiting resistance R1 flow into ground, the One on-off circuit Q1 is turned on, and main control unit MCU insertion test side AIO1 is low level, illustrates that electronic product is placed on charging On base, P1 ', P2 ' and P1, P2 connect one to one, and control voltage change-over circuit is enabled, Q4 conductings, and base battery is electronics Product charges.
In the present embodiment, in order to ensure first switch circuit Q1 conducting, two charging pins P1 in electronic product, The 5th current-limiting resistance R5 is in series between P2, i.e. electronic product charger charger is in parallel with R5, to improve the first current-limiting resistance R1 dividing ratios, ensure the voltage of first switch circuit Q1 control terminal, it is ensured that first switch circuit Q1 is turned on.Charging current Through P1 ', P1, charger charger and R5, P2, P2 ', first switch circuit Q1 control terminal, the first current-limiting resistance R1 flow into Ground.R5 of the selection with larger resistance, such as 1M Ω, avoids loss of the electric current on R5.
The insertion detection unit built by component, cost is low, detection is accurate.
The course of work of charging base is as follows, and under default conditions, Q1, Q2, Q3, Q4 are in off state.
(1)Main control unit detects whether to access external power supply, if now access has external power supply, control Q3 conductings. When the insertion test side AIO1 of main control unit is low level, illustrate that electronic product is placed on charging base, P1 ', P2 ' with P1, P2 connect one to one;The output end PIO1 of main control unit exports high level to second switch circuit Q2 control terminal, the Two on-off circuit Q2 are turned on.
(2)Main control unit detects whether to access external power supply, if now access has an external power supply, main control unit it is defeated Go out to hold PIO2 outputs high level, output end PIO3 to export low level to sub-control unit, sub-control unit control voltage conversion electricity Road does not enable, and controls the 4th on-off circuit Q4 to disconnect, the 3rd on-off circuit Q3 conductings, and the electric energy that external power supply provides passes through outer Connect power interface, the 3rd on-off circuit Q3 switch ways are transmitted to electric energy output end VCHG, be then transmit to charging pins, be Electronic product charges.Charge path:External power supply → external power interface → Q3 → electric energy output end VCHG → P1 ' → P1 → electricity Sub- product charger and resistance R5 → P2 → P2 ' → Q2 → R4 → GND.
If not accessing external power supply now, the output end PIO2 outputs low level of main control unit, output end PIO3 outputs High level to sub-control unit, sub-control unit control voltage change-over circuit enables, and controls the 4th on-off circuit Q4 conductings, the Three on-off circuit Q3 are disconnected, and the electric energy that base battery provides is boosted by voltage conversion circuit, then through the 4th switch electricity Road Q4 switch ways are transmitted to electric energy output end VCHG, are then transmit to charging pins, are charged for electronic product.Charging circuit Footpath:Base battery → voltage conversion circuit → Q4 → electric energy output end VCHG → P1 ' → P1 → electronic product charger and resistance R5→P2→P2’ →Q2→R4→GND。
In both charging processes, voltage, the electricity of operational amplifier OP1 in-phase input end are formed above resistance R4 Pressure is more than the voltage of inverting input, the AIO2 of operational amplifier OP1 output high level to main control unit.
(3)When electronic product is fully charged, the electric current on charge circuit is 0, operational amplifier OP1 in-phase input end Voltage is less than the voltage of inverting input, and operational amplifier OP1 exports low level to the AIO2 of main control unit;Main control unit Output end PIO3 export low level to sub-control unit, sub-control unit control voltage change-over circuit does not enable, to reduce work( Consumption, extend the stand-by time of charging base.And second switch circuit Q2 is controlled to disconnect.
Therefore, the charging base of the present embodiment, charging when both having met external power supply access to electronic product are again full When foot is without external power supply, charging of the base battery to electronic product, it is easy to charge to electronic product, extends electronics production The usage time of product, meets user's request, improves user experience.
Based on the design of above-mentioned charging base, the present embodiment also proposed a kind of electronic product, mainly including charger, fill Battery, two charging pins P1 and P2, and described charging base.Two charging pins P1, P2 and charging base fill Electric pin P1 ', P2 ' are corresponded, and two charging pins P1, P2 and charger connect, and charger charges for rechargeable battery.
By designing described charging base in electronic product, it is easy to the charging of electronic product, improves electronic product Usage time, meet the use demand of user, improve the usage experience of user.
Described electronic product can be wrist-watch, mobile phone, PAD, Intelligent worn device etc..
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck The variations, modifications, additions or substitutions that the those of ordinary skill in domain is made in the essential scope of the present invention, should also belong to this hair Bright protection domain.

Claims (10)

  1. A kind of 1. charging base, it is characterised in that:It is single including main control unit, base battery, Charge Management unit, insertion detection Member, two charging pins:First charging pins, the second charging pins, two of described two charging pins and electronic product fill Electric pin corresponds;
    The electrical energy inputs of the Charge Management unit are connected with base battery, and the electric energy output end of the Charge Management unit connects Connect the first charging pins of charging base, the second charging pins ground connection of the charging base;
    Whether is the connection of the charging pins of the insertion detection unit detection charging base and the charging pins of electronic product, and defeated Go out detection signal to the insertion test side of main control unit;
    The main control unit is according to the detection signal of insertion test side, output charging control signal to Charge Management unit, institute State Charge Management unit according to the charging control signal that receives control electric energy output end output electric energy whether.
  2. 2. charging base according to claim 1, it is characterised in that:The charging base also includes at least one magnet, The magnet is opposite with the magnet polarities of electronic product;The magnet of the charging base and the magnet attraction of electronic product are one Rise, the connection corresponding with the charging pins of electronic product of the charging pins of the charging base.
  3. 3. charging base according to claim 2, it is characterised in that:The magnet of the charging base is laid with three, is in Triangle is laid;Adhesive is corresponded with three magnet of electronic product.
  4. 4. charging base according to claim 2, it is characterised in that:The insertion detection unit includes magnetic field sensor, The magnetic field sensor detects magnetic flux, and exports detection signal to the insertion test side of main control unit.
  5. 5. charging base according to claim 1, it is characterised in that:The insertion detection unit includes first switch electricity Road;
    Second charging pins of the charging base are grounded by the first current-limiting resistance, and second charging pins and the first limit The control terminal of the connecting node connection first switch circuit of leakage resistance, one end of the switch ways of the first switch circuit passes through Second current-limiting resistance connect base battery, other end ground connection;The switch ways and the second current-limiting resistance of the first switch circuit Connecting node connection main control unit insertion test side;
    The anode of the base battery connection diode, the negative electrode of the diode connect the first charging pins.
  6. 6. charging base according to claim 5, it is characterised in that:Connected between two charging pins of electronic product There is the 5th current-limiting resistance.
  7. 7. charging base according to any one of claim 1 to 6, it is characterised in that:The Charge Management unit includes Sub-control unit, the 3rd on-off circuit, the 4th on-off circuit, voltage conversion circuit, external power interface;
    The external power interface is connected with external power supply;And the external power interface is led to by the switch of the 3rd on-off circuit Road is connected with electric energy output end;
    The input of the voltage conversion circuit is connected with electrical energy inputs, and the output end of the voltage conversion circuit passes through the 4th The switch ways of on-off circuit are connected with electric energy output end;
    The sub-control unit receives the charging control signal that main control unit is sent, the 3rd on-off circuit of control, the 4th switch The break-make of circuit.
  8. 8. charging base according to claim 7, it is characterised in that:Second charging pins of the charging base pass through The switch ways ground connection of two on-off circuits, the break-make of the main control unit control second switch circuit.
  9. 9. charging base according to claim 8, it is characterised in that:The switch ways of the second switch circuit pass through Four current-limiting resistances are grounded;
    The charging base also includes operational amplifier, the in-phase input end connection second switch circuit of the operational amplifier with The connecting node of 4th current-limiting resistance, the inverting input connection reference voltage of the operational amplifier, the operational amplifier Output end connection main control unit;
    The signal that the main control unit conveys according to the operational amplifier received, produce charging control signal and export to electricity The sub-control unit of source control unit, control voltage change-over circuit it is whether enabled.
  10. A kind of 10. electronic product, it is characterised in that:Including charger, rechargeable battery, two charging pins, and as right will Seek the charging base any one of 1 to 9;A pair of the charging pins 1 of described two charging pins and the charging base Should, described two charging pins are connected with charger, and the charger charges for rechargeable battery.
CN201710962927.7A 2017-10-16 2017-10-16 A kind of charging base and electronic product Pending CN107546814A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109738740A (en) * 2018-12-25 2019-05-10 Oppo广东移动通信有限公司 Suction type power-supply device, output control method, medium and electronic equipment
WO2020020356A1 (en) * 2018-07-26 2020-01-30 青岛海信移动通信技术股份有限公司 Smart watch and mode switching method therefor
CN110764398A (en) * 2018-07-26 2020-02-07 青岛海信移动通信技术股份有限公司 Intelligent watch and mode switching method thereof
CN110764397A (en) * 2018-07-26 2020-02-07 青岛海信移动通信技术股份有限公司 Intelligent watch and mode switching method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020020356A1 (en) * 2018-07-26 2020-01-30 青岛海信移动通信技术股份有限公司 Smart watch and mode switching method therefor
CN110764398A (en) * 2018-07-26 2020-02-07 青岛海信移动通信技术股份有限公司 Intelligent watch and mode switching method thereof
CN110764397A (en) * 2018-07-26 2020-02-07 青岛海信移动通信技术股份有限公司 Intelligent watch and mode switching method thereof
CN109738740A (en) * 2018-12-25 2019-05-10 Oppo广东移动通信有限公司 Suction type power-supply device, output control method, medium and electronic equipment
CN109738740B (en) * 2018-12-25 2021-04-02 Oppo广东移动通信有限公司 Attraction-type power supply device, output control method, medium, and electronic device

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