CN102457090A - Induction charging device - Google Patents
Induction charging device Download PDFInfo
- Publication number
- CN102457090A CN102457090A CN2010105156554A CN201010515655A CN102457090A CN 102457090 A CN102457090 A CN 102457090A CN 2010105156554 A CN2010105156554 A CN 2010105156554A CN 201010515655 A CN201010515655 A CN 201010515655A CN 102457090 A CN102457090 A CN 102457090A
- Authority
- CN
- China
- Prior art keywords
- voltage
- electronic switch
- charging device
- output
- duty ratio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses an induction charging device, which consists of a power transmitter and an induction receiver, wherein when a receiving coil of the induction receiver is placed in a magnetic field of a transmitting coil of the power transmitter, an induction voltage is generated, and the induction voltage is rectified, filtered and stabilized and can be used for charging a mobile phone or a battery; the power transmitter is mainly formed by connecting an inductance capacitance (LC) resonant transmitting loop and a special integrated circuit (IC) for electric energy transmitting in series; and the induction receiver consists of an LC receiving loop, a low-resistance electronic switch, a voltage-controlled pulse-width oscillator, a light-controlled voltage regulator, a group of internal power supplies and a group of output power supplies. By adoption of the induction charging device, electric energy is transferred in an electromagnetic induction mode, a non-contact battery charging process is realized, mobile equipment such as the mobile phone is convenient to use, and a foundation is laid for unification of wireless charging equipment in public places.
Description
Technical field
The present invention relates to a kind of charging technique, particularly give the technology of mobile phone or compact stabilized equipment charge through induction mode.
Background technology
This means of communication of mobile phone has become the necessity of everyone live and work.Mobile phone every day or every all be faced with an inevitable problem at a distance from a couple of days is exactly the charging of mobile phone in use---charger inserted on the power panel on the wall; Plug with single line is inserted on the mobile phone again; Again plug was dialled down from mobile phone in second day---plug so year in year out, trouble not only, and usually occur that broken string, socket get loose, loose contact; Even short circuit damages mobile phone; Particularly concerning the people of some frequent use mobile phones, possibly repeatedly charge in one day, more increase the failure rate of mobile phone.
The another one problem of cell-phone charging is: because the producer of mobile phone and the diversity of model; The charging inlet of mobile phone is varied, though just formulated the standard of a cell-phone charging mouth before several, it is unified to fail so far; Therefore; Still be that special charger is mobile phone dedicated charging, be difficult to unification, this has brought difficulty for enforcement of the electrically-charging equipment of public place.
In October, 2010, international wireless charging alliance has put into effect first wireless charging standard, i.e. QI wireless charging standard has formally been opened the gate of the wireless charging of mobile phone.Wireless charging is to be the contactless charging on basis with the electromagnetic induction, do not have circuit physically to connect, thereby removed power line, plug and socket from, and during use, as long as mobile phone is placed on the assigned address, just can be to cell-phone charging.This has not only made things convenient for use, also gives the universal necessary precondition that provides of the charging of public place.
Here, according to electromagnetic induction principle, a kind of cheapness, safety, wireless charging device have easily been designed.
Summary of the invention
The present invention is a kind of induction charging device; It is made up of two parts: power supply reflector and inducing receiver; Place the magnetic field of the transmitting coil of power supply reflector when the receiving coil of inducing receiver; Will produce induced voltage, after rectification, filtering and voltage stabilizing, just can come mobile phone or battery charge with it.
The power supply reflector mainly is composed in series by a LC resonance launching circuit and a VOX series electric energy emission application-specific integrated circuit; Launching circuit is composed in parallel with the emission capacitor C by transmitting coil L, and the emission application-specific integrated circuit is a three terminal device, has three utmost points: the driving voltage end; Power take-off and ground; Power take-off is equivalent to a speed-sensitive switch over the ground, and the frequency of switch determines by internal oscillator, as long as give driving voltage of emission IC just can operate as normal; One end of resonance launching circuit links to each other with the positive pole of emission power, and the other end is connected with emission IC output, and the negative pole of IC links to each other with the negative pole of power supply.Two voltages are arranged here, and one is the emission voltage that uses to the resonance launching circuit, and another is the driving voltage of chip.
Inducing receiver is made up of six parts: a LC receiving loop, and a low-resistance electronic switch, a voltage-controlled pulsewidth oscillator, a light-operated voltage regulator, one group of internal electric source and one group of out-put supply are shown in the following figure:
Wherein the resonant capacitance C of LC receiving loop is directly not parallelly connected with receiving coil L, but with parallelly connected with receiving coil L again after the low-resistance electronic switch is connected, the low-resistance electronic switch is to be formed by two electrode differential concatenations in leakage-source that two FET manage; Two drain electrodes are as switch terminals; Two source electrodes are common ground, and this is the ground wire of a suspension, do not link to each other with the ground wire of out-put supply; The public canopy utmost point of two FET pipes links to each other with the output of voltage-controlled pulsewidth oscillator; The input of voltage controlled oscillator links to each other with the output of light-operated voltage regulator, and the input of light-operated voltage regulator is a photodiode, and the light source of this photodiode is from the indicator light of out-put supply; Internal electric source is that voltage controlled oscillator and light-operated voltage regulator provide operating voltage and electric current, and external power source is the out-put supply of this inducing receiver; Its operation principle is: the height of output voltage; Directly change the brightness of feedback feedback light emitting pipe, the output voltage of the brightness decision voltage regulator of feedback light emitting pipe just further changes the duty ratio of the square wave of voltage controlled oscillator; Further change the conducting duty ratio of electronic switch; Promptly changed the conducting duty ratio of resonant capacitance C, just changed LC and received the resonance duty ratio of resonant tank, thereby changed the height of output voltage.Their relation is following:
Resonant capacitance C in the LC resonant tank is not directly parallelly connected with resonant inductance L, but it is back parallelly connected with resonant inductance to connect with the low-resistance electronic switch, and therefore, the resonance condition of this resonant tank receives the control of low-resistance electronic switch.
The low-resistance electronic switch is the bidirectional electronic switch of a milliohm level resistance, is formed by the differential concatenation of the CMOS FET of two low-resistances pipe, i.e. source electrode (the S utmost point) serial connection of two FET pipes; The drain electrode (the D utmost point) of two FET pipe is as the two ends of switch, simultaneously, and grid (the G utmost point) parallel connections of two FET pipes; This is the control end of low-resistance electronic switch; If on the public altogether G utmost point (with respect to the public S utmost point), add a control voltage (high level), two FET are with conducting simultaneously, at this moment; Be low resistive state, the electronic switch conducting between the D utmost point of two FET pipes; Otherwise two FET pipes end simultaneously, promptly are high-impedance state between the D utmost point of two FET, and electronic switch ends.
The public G utmost point of FET pipe links to each other with the output of voltage-controlled pulsewidth oscillator.
Voltage-controlled pulsewidth oscillator is a square-wave oscillator, and the duty ratio of square wave is by the voltage decision of control end, and voltage is high more, and duty ratio is big more, otherwise more little.
The control end of voltage-controlled pulsewidth oscillator links to each other with the output of light-operated voltage regulator.
Light-operated voltage regulator mainly is made up of a photosensitive tube and a triode, and it is the voltage follower of a linearity, is controlled by the feedback light emitting pipe, and feedback light emitting Guan Yueliang, output end voltage are low more, otherwise high more.The power supply of this voltage regulator is provided by power circuit.
Like this; Following chain lock relation is just arranged: the make-and-break time of the duty ratio → electronic switch of the square wave of the output voltage height → voltage controlled oscillator of output voltage height → feedback light emitting pipe brightness size → voltage regulator; Be the feedback light emitting pipe brightness decision the make-and-break time of electronic switch, also just determined to receive the resonance time that resonance is gone the same way.
Out-put supply is that two ends rectification, the filtering from the resonance receiving loop obtains, and the resonance duty ratio that receives resonant tank directly has influence on the height of output voltage.
One group of internal electric source is arranged in the inducing receiver; For voltage regulator and voltage controlled oscillator provide operating current and voltage; This power supply be two ends from receiving coil through shunting capacitance after rectifying and wave-filtering obtain, this is the power supply of a suspension, isolates with out-put supply.
Inducing receiver is to regulate the output duty cycle of electronic switch through the brightness of the feedback light emitting pipe of isolating; Make-and-break time with the control electronic switch; Reach the purpose of regulating output current or voltage, the load voltage that it not only can keep receiving circuit is consistent with floating voltage, and circuit element is burnt in the overvoltage when preventing zero load; In the time of can also preventing to accept the circuit zero load; Because of excessively receiving the heating phenomenon that causes, can also reduce the emission current of the radiating circuit of power supply with it simultaneously, for energy-conservation be useful.
This induction charging device transmits electric energy through the mode of electromagnetic induction, has realized contactless battery charging process, has not only made things convenient for the use of mobile devices such as mobile phone, also lays a good foundation for the equipment that is total to unified wireless charging in the public occasion.
Description of drawings
Accompanying drawing 1 is the fundamental diagram of power supply reflector.
Accompanying drawing 2 is fundamental diagrams of inducing receiver.
Accompanying drawing 3 is inducing receiver application principle figure in lithium cell charging.
Accompanying drawing 4 is fundamental diagrams of the inducing receiver after integrated.
Accompanying drawing 5 is the inducing receiver application principle figure in lithium cell charging after integrated.
Accompanying drawing 6 is structural representations of power supply reflector and inducing receiver.
Accompanying drawing 7 is STRUCTURE DECOMPOSITION sketch mapes of power supply reflector and inducing receiver.
Accompanying drawing 8 is work relationship sketch mapes of power supply reflector and inducing receiver.
In the accompanying drawing 1, L1 is the resonance transmitting coil, and C1 is a resonant capacitance, and IC1 is a transmitting chip, and R1 is a shunt resistance, and RS is tongue tube (a kind of magnetic switch), and L3 is an inductance, and C3 and C4 are filter capacitor.
In the accompanying drawing 2, empty frame 1 is for receiving resonant tank, and empty frame 2 is the low-resistance electronic switch, and empty frame 3 is voltage-controlled square-wave oscillator, and empty frame 4 is light-operated voltage regulator, and empty frame 5 is an interior power supply circuit, and empty frame 6 is a power output circuit.L2 is a receiving coil, and C2 is a resonant capacitance, and T1, T2 are two CMOS FET pipes; IC2 is voltage-controlled square-wave oscillator chip, and Q1 is a triode, and PH is a photosensitive tube; DW1 and DW2 are voltage-stabiliser tube, and BG1 and BG2 are full bridge rectifier, and LED1 is a light-emitting diode; R1, R2, R3, R4, R5, R6 and R7 are resistance, and C5, C6, C7, C8 and C9 are electric capacity, and L4, L5 are inductance.
Accompanying drawing 3 is on the basis of accompanying drawing 2, has increased the lithium cell charging management circuit, and IC3 is a managing chip, and BAT is a rechargeable battery, and D1, D2 are diode, and R8, R9 are resistance.
In the accompanying drawing 4, L2 is a receiving coil, and C2 is a resonant capacitance, and VK is light-operated duty ratio electronic switch, and BG2 is the rectification full-bridge, and L5 is an inductance, and C8 is a filter capacitor, and DW2 is a voltage-stabiliser tube, and R7 is a feedback resistance.
Accompanying drawing 5 is on the basis of accompanying drawing 4, has increased the lithium cell charging management circuit, and IC3 is a managing chip, and BAT is a rechargeable battery, and D1, D2 are diode, and R8, R9 are resistance.
In the accompanying drawing 6, A representes substrate, and B representes flux guide layer, and C representes coil and PCB, and D representes the insulating surfaces flaggy.
In the accompanying drawing 7, A representes substrate, and B representes flux guide layer, and C representes coil and PCB, and D representes the insulating surfaces flaggy.
In the accompanying drawing 8, A representes the launching base flaggy, and B representes to launch flux guide layer, and C representes transmitting coil and PCB layer, and D representes to launch the insulating surfaces flaggy; A representes to receive substrate, and b representes to receive flux guide layer, and c representes receiving coil and PCB, and d representes to receive the insulating surfaces flaggy.
Embodiment
Below in conjunction with instance, induction charging apparatus of the present invention is further specified.
Instance one, the application of induction charging apparatus of the present invention in the wireless charging of battery of mobile phone.
In the accompanying drawing 1, after 1 parallel connection of transmitting coil L1 resonant capacitor C, an end links to each other with power supply; The other end is connected with the output of transmitting chip IC1, and shunt resistance R1 is that chip IC 1 provides operating voltage and electric current, and IC1 is the power source special transmitting chip of VOX series; Tongue tube RS is a magnetic switch, and when magnetic field during near it, RS is closed; IC1 gets the electrician and does, and radiating circuit is externally launched electric energy; When it is left in magnetic field, the RS open circuit, IC1 ends, and radiating circuit is not worked, and power consumption is zero.The magnetic field of control RS is from a permanent magnet, and this piece magnet is fixed near the equipment to be charged such as or the mobile phone of rechargeable battery, when they during near the power supply reflector; RS just connects, and battery charge is when they leave the power supply reflector; RS breaks off; The power supply emission quits work, and like this, has realized the function of automatic identification and the holding state of zero current emission.
The application in lithium cell charging of instance two, inducing receiver
In the accompanying drawing 2, the resonant capacitance C2 in the empty frame 1 is directly not parallelly connected with receiving coil L2, but with after a low-resistance electronic switch is connected; Parallelly connected with L2 again, therefore, this is a controlled resonance receiving loop; Through changing the resonance duty ratio of C2, control the output voltage at resonant tank two ends.
Low-resistance electronic switch (empty frame 2) is that two low-resistance CMOS FET pipes are in series by T1 and T2, and the resistance value of these two FET requires to be the milliohm level, and two source electrodes (the S utmost point) series connection of T1 and T2 is as common ground; Two drain electrodes (the D utmost point) are as two outputs of switch, and two grids (the G utmost point) parallel connection is as public control end, like this; As long as at the common port of T1 and T2, promptly the S utmost point and G add a high level on extremely, and T1 and T2 will the while conductings; Be low resistance between two D utmost points, the electronic switch conducting, otherwise; T1 and T2 end, and are high resistance between two D utmost points, and electronic switch cuts out.
The high level of control low-resistance electronic switch (empty frame 2) is from voltage-controlled square-wave oscillator (empty frame 3); Form by a VCO chip IC 1 and resistance R 5, capacitor C 9; Voltage-controlled square-wave oscillator is a square-wave generator, and the O end is output, the square-wave signal of an EDM Generator of Adjustable Duty Ratio of output; Vp is the control voltage of chip IC 1, changes the duty ratio that this voltage just can change the output square wave.
Control voltage Vp is by light-operated voltage regulator (empty frame 4) decision, and many more when the illumination that photosensitive tube PH receives, its backward resistance is more little, and the bias voltage of triode Q1 is high more, and then Vp is just low more, otherwise then high more.The required illumination of photosensitive tube PH is from feedback light emitting pipe LED1; So following relation is just arranged: when the output voltage rising, LED1 brightness increases, and the backward resistance of photosensitive tube PH is more little; The bias voltage of triode Q1 is high more; Then Vp is just low more, and the duty ratio of the output square wave of voltage-controlled square-wave oscillator (empty frame 3) is more little, and the ON time of low-resistance electronic switch (empty frame 2) is short more; Otherwise when the output voltage reduction, LED1 brightness reduces; The backward resistance of photosensitive tube PH is big more; The bias voltage of triode Q1 reduces, and then Vp is just high more, and the duty ratio of the output square wave of voltage-controlled square-wave oscillator (empty frame 3) is big more; The ON time of low-resistance electronic switch (empty frame 2) is long more, and the output voltage of receiving loop is high more.
Low-resistance electronic switch (empty frame 2), voltage-controlled square-wave oscillator (empty frame 3) and the needed operating voltage of light-operated voltage regulator (empty frame 4) are provided by interior power supply circuit (empty frame 5); The alternating current at the A of receiving coil L2 and B two ends is after C5, C6 shunting; By full-bridge rectification pipe BG1 rectification; After L4 buffering, C7 filtering and DW1 voltage stabilizing, a metastable voltage is provided, this power supply be two ends from receiving coil through shunting capacitance after rectifying and wave-filtering obtain; This is the power supply of a suspension, isolates with out-put supply.
The operation principle of out-put supply (empty frame 6) is: the voltage at receiving coil L2 two ends, after full-bridge BG2 rectification, inductance L 5 bufferings, C8 filtering, export.
Here, voltage-stabiliser tube DW2, resistance R 7 and feedback light emitting pipe LED1 are feedback circuit, when output voltage reaches certain value, and the DW2 conducting; LED1 is luminous, and output voltage is high more, and LED1 is bright more, and the PH backward resistance reduces; The Vp value is high more, and the duty ratio of ICi output wave reduces, and the conducting duty ratio of T1 and T2 reduces; The resonance duty ratio of resonant tank reduces, and the L1 voltage reduces, and forces output voltage to reduce; Otherwise when the output voltage reduction, the LED1 deepening, the PH backward resistance increases; The Vp value reduces, and the duty ratio of IC1 output wave increases, and the conducting duty ratio of T1 and T2 increases; The resonance duty ratio of resonant tank increases; The L1 voltage raises, and forces output voltage to rise, and has so just realized a process that voltage stabilizing receives.
Accompanying drawing 3 be on the basis of accompanying drawing 2 the lithium cell charging management circuit, IC3 is a charging chip, BAT is a rechargeable battery, R8 is the charging programming resistors; 1 pin of IC3 is the charging indication end, and in the charging process, it is low level; Charging is high level, at this moment after finishing; LED1 Chang Liang forces receiving circuit to stop resonance, and the emission of corresponding radiating circuit just changes Light Condition over to.
Whole courses of work of induction charging device of the present invention simply are summed up as:
When the mobile phone that has magnet or battery during near the tongue tube RS of electrical energy transmitter, RS is closed, electrical energy transmitter work, otherwise do not work; When beginning to charge, the voltage of battery BAT is lower, has dragged down output voltage V o; The brightness of feedback light emitting pipe LED1 is little, and photoelectric tube PH internal resistance is big, and the output voltage V p of light-operated voltage regulator is high; The output duty cycle of voltage controlled oscillator is big, and the ON time of low-resistance electronic switch is long, and the resonance time of resonance receiving loop L1C1 is long; Force receiving coil L1 voltage to raise, but because the voltage of battery BAT can not suddenly change, the result can only strengthen charging current; After battery charge finished, the charging indication end of Charge Management IC3 was high resistant, the equal conducting of D1 and D2 at this moment; Feedback light emitting pipe LED1 is in high bright state, forces voltage controlled oscillator to hang down and shakes, and the low-resistance electronic switch cuts out; The resonance receiving circuit is failure of oscillation also, at this moment, has only receiving coil L1 to receive few energy; The confession internal electric source uses, and the output current of out-put supply makes electrical energy transmitter input minimum power consumption state near zero.
The integrated application of instance three, inducing receiver
With the low-resistance electronic switch in the accompanying drawing 2 (empty frame 2), voltage-controlled square-wave oscillator (empty frame 3); Light-operated voltage regulator (empty frame 4), interior power supply circuit (empty frame 5) and feedback feedback light emitting pipe LED1 are integrated on a module or the chip, just can form the electronic switch of one the four light-operated duty ratio of end; The input of this switch is the feedback light emitting pipe; Output is the FET pipe of two differential concatenations, and two D are output very, as in the accompanying drawing 4 with shown in the VK; Like this, the complicated circuit of accompanying drawing 2 has just become the ball bearing made using shown in the accompanying drawing 4.At this moment, internal electric source is not to obtain electric energy from coil L2, but obtains electric energy from i.e. two drain electrodes of two FET in two ends of low-resistance electronic switch.
Accompanying drawing 5 is identical with the operation principle of accompanying drawing 3, and only the switch with a light-operated duty ratio has replaced the interlock circuit in the accompanying drawing 3.Accompanying drawing 5 be on the basis of accompanying drawing 4 the lithium cell charging management circuit.
The applied topology figure of instance four, induction charging device.
Shown in the C layer of accompanying drawing 6, accompanying drawing 7, in practical application, can transmitting coil and radiating circuit plate (being PCB) be made a module, same, receiving coil is made a module with reception PCB, PCB is placed on the next door of coil, and is integrally formed.
Simultaneously,, reduce radiation,, increase one deck flux guide layer B respectively in the outside of transmitting coil and receiving coil in order to improve the whole efficiency that transmits and receives.Flux guide layer has effect to have three: one, improves the quality factor of coil, increases the emissivities and the receiving ability of coil; The 2nd, shielded the outside of coil, realized the function of unidirectional emission and unidirectional reception; The 3rd, prevent the rechargeable battery heating, because the suitable metallic conductor of rechargeable battery when it places magnetic field, will form eddy current and make the battery heating.
Structurally, can flux guide layer B be fixed on above the substrate A, then coil and wiring board C be fixed on the flux guide layer B, stick one deck insulating protective layer D at last outside.Transmitter module and receiver module are by these four layers of compositions, and it is identical to put in order.
During actual the use, transmitter module and receiver module are quite placed, shown in accompanying drawing 8.Energy sends from the coil layer C layer of transmitter module, sees through insulating protective layer D, from air, passes to receiver module, sees through insulating protective layer d, is received by coil layer c and is converted into electric energy, realizes the transmission of energy.
Claims (9)
1. induction charging device; It is made up of two parts: power supply reflector and inducing receiver; Two parts separate fully, when the receiving coil of inducing receiver places the magnetic field of the transmitting coil of power supply reflector, will produce induced voltage; After rectification, filtering and voltage stabilizing, just can come mobile phone or battery charge with it; The power supply reflector mainly is composed in series by the electric energy emission application-specific integrated circuit of a LC resonance launching circuit and a VOX series, and inducing receiver is made up of six parts: a LC receiving loop, a low-resistance electronic switch; A voltage-controlled pulsewidth oscillator; A light-operated voltage regulator, one group of internal electric source and one group of out-put supply, wherein the resonant capacitance of LC receiving loop is directly not parallelly connected with receiving coil L; But with parallelly connected with receiving coil L again after the low-resistance electronic switch is connected; The low-resistance electronic switch is to be formed by two electrode differential concatenations in leakage-source that two FET manage, and two drain electrodes are as switch terminals, and two source electrodes are common ground; The public canopy utmost point of two FET pipes links to each other with the output of voltage-controlled pulsewidth oscillator; The input of voltage controlled oscillator links to each other with the output of light-operated voltage regulator, and the input of light-operated voltage regulator is a photosensitive tube, and the light source of this photosensitive tube is from the feedback light emitting pipe of out-put supply; Internal electric source is that voltage controlled oscillator and light-operated voltage regulator provide operating voltage and electric current, and external power source is the out-put supply of this inducing receiver; Its operation principle is: the height of output voltage directly changes the brightness of feedback light emitting pipe, the output voltage height of the brightness decision voltage regulator of feedback light emitting pipe; Further change the duty ratio of the square wave of voltage controlled oscillator; Then change the conducting duty ratio of electronic switch, promptly changed the conducting duty ratio of resonant capacitance C, just changed the resonance duty ratio of LC reception resonant tank; Thereby changed the height of output voltage, obtained a metastable output voltage in this way.
2. induction charging device according to claim 1; It is characterized in that: the low-resistance electronic switch of control resonant capacitance duty ratio is the bidirectional electronic switch of a milliohm level resistance, is formed by the differential concatenation of the CMOS FET pipe of two low-resistances, i.e. source electrode (the S utmost point) serial connection of two FET pipes; The drain electrode (the D utmost point) of two FET pipes is as the two ends of switch; Simultaneously, grid (the G utmost point) parallel connection of two FET pipes is as control end, and two source electrodes (the S utmost point) are public ground.
3. induction charging device according to claim 1 is characterized in that: the voltage-controlled pulsewidth oscillator of control low-resistance electronic switch is a square-wave oscillator, and the duty ratio of square wave is by the voltage decision of control end, and voltage is high more, and duty ratio is big more, otherwise more little.
4. induction charging device according to claim 1; It is characterized in that: light-operated voltage regulator mainly is made up of a photosensitive tube and a triode, and it is the voltage follower of a linearity, for voltage controlled oscillator provides voltage control; It is controlled by the feedback light emitting pipe; Feedback light emitting Guan Yueliang, output end voltage are low more, otherwise high more.
5. induction charging device according to claim 1 is characterized in that: the out-put supply of inducing receiver is that two ends rectification, the filtering from the resonance receiving loop obtains, and the resonance duty ratio that receives resonant tank directly has influence on the height of output voltage.
6. induction charging device according to claim 1; It is characterized in that: an internal electric source is arranged in the inducing receiver; For voltage regulator and voltage controlled oscillator provide operating current and voltage; This group power supply be two ends from receiving coil through shunting capacitance after rectifying and wave-filtering obtain, be one group of suspended power supply, isolate with out-put supply.
7. induction charging device according to claim 1; It is characterized in that: induction is an output duty cycle of regulating electronic switch through the brightness of the feedback light emitting pipe of isolating by receiving device; With the make-and-break time of control electronic switch, reach the purpose of regulating output current or voltage.
8. induction charging device according to claim 1; It is characterized in that: the low-resistance electronic switch in the inducing receiver, voltage-controlled square-wave oscillator; Light-operated voltage regulator, interior power supply circuit and feedback light emitting pipe are integrated on a module or the chip, just can form the electronic switch of one the four light-operated duty ratio of end; The input of this chip is the feedback light emitting pipe, and output is the drain electrode of the FET pipe of two differential concatenations.
9. induction charging device according to claim 1 is characterized in that: radiating circuit and receiving circuit all can be made module, and module is four layers: substrate layer; Flux guide layer, coil and PCB layer, insulating surfaces flaggy are during use; Transmitter module and receiver module are placed relatively, and flux guide layer outwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105156554A CN102457090A (en) | 2010-10-14 | 2010-10-14 | Induction charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105156554A CN102457090A (en) | 2010-10-14 | 2010-10-14 | Induction charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102457090A true CN102457090A (en) | 2012-05-16 |
Family
ID=46039900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105156554A Pending CN102457090A (en) | 2010-10-14 | 2010-10-14 | Induction charging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102457090A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578336A (en) * | 2013-10-29 | 2015-04-29 | 国美科技有限公司 | Automatic sensing wireless charging system |
| CN104810864A (en) * | 2015-03-30 | 2015-07-29 | 国家电网公司 | Adaptive frequency tracking type wireless energy transmission receiving device and method |
| CN106329651A (en) * | 2016-09-22 | 2017-01-11 | Tcl通讯（宁波）有限公司 | Wireless charging device of mobile terminal, wireless charging system and method thereof |
| CN108512277A (en) * | 2018-04-26 | 2018-09-07 | 华东交通大学 | A kind of circuit carrying out wireless charging for vivo implantation type medical instrument |
| CN109211004A (en) * | 2017-07-07 | 2019-01-15 | 杨俊峰 | Baton set with wireless charging function |
| EP3562266B1 (en) | 2018-04-23 | 2020-08-05 | Whirlpool Corporation | System and method for controlling quasi-resonant induction heating devices |
| CN112713908A (en) * | 2020-12-24 | 2021-04-27 | 苏州信卓胜电子科技有限公司 | Electromagnetic induction wireless information transmission receiving circuit |
| US10998121B2 (en) | 2014-09-02 | 2021-05-04 | Apple Inc. | Capacitively balanced inductive charging coil |
| CN112987951A (en) * | 2021-03-23 | 2021-06-18 | 嘉兴技领信息技术有限公司 | Mouse with wireless charging function and charging method thereof |
| CN114376439A (en) * | 2021-12-31 | 2022-04-22 | 美的集团(上海)有限公司 | Handheld dust collector charging system and handheld dust collector |
| CN114844152A (en) * | 2022-05-10 | 2022-08-02 | 湖南炬神电子有限公司 | Wireless charger with annular breathing lamp effect |
| WO2023071239A1 (en) * | 2021-10-27 | 2023-05-04 | 深圳市吉迩科技有限公司 | Aerosol generation system and apparatus, and wireless charging circuit and charging method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1768462A (en) * | 2003-02-04 | 2006-05-03 | 通达商业集团国际公司 | Adaptive inductive power supply with communication ability |
| WO2007053569A1 (en) * | 2005-10-31 | 2007-05-10 | Mks Instruments, Inc. | Radio frequency power delivery system |
| US7710751B2 (en) * | 2005-04-22 | 2010-05-04 | Daifuku Co., Ltd. | Secondary-side power receiving circuit of noncontact power supplying equipment |
| CN101789638A (en) * | 2010-02-26 | 2010-07-28 | 深圳和而泰智能控制股份有限公司 | Wireless charging receiver capable of extending charging distance and method |
-
2010
- 2010-10-14 CN CN2010105156554A patent/CN102457090A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1768462A (en) * | 2003-02-04 | 2006-05-03 | 通达商业集团国际公司 | Adaptive inductive power supply with communication ability |
| US7710751B2 (en) * | 2005-04-22 | 2010-05-04 | Daifuku Co., Ltd. | Secondary-side power receiving circuit of noncontact power supplying equipment |
| WO2007053569A1 (en) * | 2005-10-31 | 2007-05-10 | Mks Instruments, Inc. | Radio frequency power delivery system |
| CN101789638A (en) * | 2010-02-26 | 2010-07-28 | 深圳和而泰智能控制股份有限公司 | Wireless charging receiver capable of extending charging distance and method |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578336B (en) * | 2013-10-29 | 2017-07-07 | 国美科技有限公司 | Automatic sensing wireless charging system |
| CN104578336A (en) * | 2013-10-29 | 2015-04-29 | 国美科技有限公司 | Automatic sensing wireless charging system |
| US10998121B2 (en) | 2014-09-02 | 2021-05-04 | Apple Inc. | Capacitively balanced inductive charging coil |
| CN104810864A (en) * | 2015-03-30 | 2015-07-29 | 国家电网公司 | Adaptive frequency tracking type wireless energy transmission receiving device and method |
| CN106329651A (en) * | 2016-09-22 | 2017-01-11 | Tcl通讯（宁波）有限公司 | Wireless charging device of mobile terminal, wireless charging system and method thereof |
| CN106329651B (en) * | 2016-09-22 | 2019-08-20 | Tcl通讯（宁波）有限公司 | A kind of wireless charging device of mobile terminal, wireless charging system and its method |
| CN109211004A (en) * | 2017-07-07 | 2019-01-15 | 杨俊峰 | Baton set with wireless charging function |
| EP3562266B1 (en) | 2018-04-23 | 2020-08-05 | Whirlpool Corporation | System and method for controlling quasi-resonant induction heating devices |
| CN108512277A (en) * | 2018-04-26 | 2018-09-07 | 华东交通大学 | A kind of circuit carrying out wireless charging for vivo implantation type medical instrument |
| CN112713908A (en) * | 2020-12-24 | 2021-04-27 | 苏州信卓胜电子科技有限公司 | Electromagnetic induction wireless information transmission receiving circuit |
| CN112987951A (en) * | 2021-03-23 | 2021-06-18 | 嘉兴技领信息技术有限公司 | Mouse with wireless charging function and charging method thereof |
| WO2023071239A1 (en) * | 2021-10-27 | 2023-05-04 | 深圳市吉迩科技有限公司 | Aerosol generation system and apparatus, and wireless charging circuit and charging method |
| CN114376439A (en) * | 2021-12-31 | 2022-04-22 | 美的集团(上海)有限公司 | Handheld dust collector charging system and handheld dust collector |
| CN114376439B (en) * | 2021-12-31 | 2023-12-15 | 美的集团(上海)有限公司 | Handheld dust collector charging system and handheld dust collector |
| CN114844152A (en) * | 2022-05-10 | 2022-08-02 | 湖南炬神电子有限公司 | Wireless charger with annular breathing lamp effect |
| CN114844152B (en) * | 2022-05-10 | 2023-02-17 | 湖南炬神电子有限公司 | Wireless charger with annular breathing lamp effect |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102457090A (en) | Induction charging device | |
| CN201887495U (en) | Induction charging device | |
| CN207218340U (en) | A kind of switching mode constant current constant voltage lithium battery charger | |
| CN103220860B (en) | Based on single live wire wireless intelligent switch of Zigbee | |
| CN101895226A (en) | Superconducting energy storage impulse power electrical source | |
| CN209200738U (en) | A kind of one-to-many wireless charging system of power adaptive allotment | |
| CN108767998A (en) | A kind of wireless charger | |
| CN109510288A (en) | A kind of one-to-many wireless charging system and control method of power adaptive allotment | |
| CN104079044A (en) | Multiple-voltage compatible charger circuit | |
| CN208209591U (en) | A kind of battery voltage equalizing circuit based on transformer | |
| CN106130370A (en) | Communicator copied by Switching Power Supply and electrical isolation method, multilist collection | |
| CN108711921A (en) | AC signal power conversion system, charging system and method for battery charging | |
| CN108879982A (en) | Bistable state primary side constant current magnetic induction couples wireless charging device and its application method | |
| CN204231720U (en) | Lighting control circuit and electronic switch thereof | |
| CN202631615U (en) | Equipotential high-voltage charge indicator | |
| CN208423854U (en) | A kind of mobile power source and its discharge circuit | |
| CN107800184B (en) | quasi-MPPT charging device for small 12V photovoltaic application system | |
| CN105554939B (en) | A kind of totally-enclosed wireless power supply of LED containing UPS module | |
| CN201418067Y (en) | Intelligent remote control switch with magnetic latching relay | |
| CN206341040U (en) | Wireless charging device | |
| CN109412236A (en) | S-S type constant current wireless charging power supply based on secondary-side switch control | |
| CN106602742B (en) | Knapsack embeds energy storage device wireless charging system and its control method | |
| CN206878490U (en) | A kind of wireless charging ball | |
| CN201122944Y (en) | Lamp remote control switch | |
| CN109996373A (en) | A kind of control circuit board, control chip and control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120516 |