CN201656576U - Variable-frequency wireless powering and charging device - Google Patents
Variable-frequency wireless powering and charging device Download PDFInfo
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- CN201656576U CN201656576U CN2010201392873U CN201020139287U CN201656576U CN 201656576 U CN201656576 U CN 201656576U CN 2010201392873 U CN2010201392873 U CN 2010201392873U CN 201020139287 U CN201020139287 U CN 201020139287U CN 201656576 U CN201656576 U CN 201656576U
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Abstract
The utility model relates to a variable-frequency wireless powering and charging device comprising a power supply base and a wireless powering and charging receiver, wherein the power supply base is electrically connected with a power circuit and a power switching drive circuit through a first microprocessor; the power switching drive circuit is electrically connected to a first resonant circuit which is electrically connected with a first coil and a detection module; the wireless powering and charging receiver is electrically connected with a second resonant circuit through a second coil; the second resonant circuit is electrically connected with a rectification filter circuit and a signal generating circuit; the rectification filter circuit is electrically connected with a detection protection module; the detection protection module and the signal generating circuit are electrically connected with a second microprocessor to lead wireless powering and charging receiver to send signals back to the power supply base after detecting the state of the supplied power by the power supply base, then the power supply base automatically adjusts the output power to reduce the energy transfer loss and greatly reduce the surplus power conversion.
Description
Technical field
The utility model provides a kind of frequency conversion type wireless power and charging device; especially refer to wireless for after the situation of charging receiver with detecting protection module detecting power supply base institute power supply; the passback signal is to power supply base; make the output of power supply base automatic power adjustment big or small; allow the loss of power transfer reduce, and the surplus power conversion also reduce significantly.
Background technology
Living environment enters digital Age, various digital products more are full of arround life, digital camera for example, mobile phone, music player various portable electronic devices such as (MP3), and various portable electronic devices, product is all towards gently, thin, short, little design concept, but as will to reach what can portably use at any time that purpose at first must solve promptly be the problem of electricity consumption, the most general general mode is installed rechargeable battery exactly in portable electronic devices, when power drain, can charge again, but everyone has a plurality of portable electronic devices now, each portable electronic devices all each has specific compatible charger, whenever buying new portable electronic devices, just need the extra corresponding charger of buying, just can increase burden economically, and need take big quantity space again and take in, more all together take in because of the charger of a plurality of electronic installations, when the needs particular charger, can producing again expends time in seeks the disappearance of comparison.
Secondly, the mode of the use of present charger, be to utilize the connecting interface of charger to be plugged into supply socket, the connector with charger is plugged into portable electronic devices again, and its portable electronic devices is charged, after to be charged the finishing, again with charger by removing on the portable electronic devices, the ground that need rely on supply socket because of described charger is chargeable just now, the place that causes charging is restricted, when being badly in need of charging, can't in time charge if be in outdoor.
Therefore, manufacturer is just arranged at this problem, develop and utilize electromagnetic wave induction to come the product of conduct power, the product of its contactless induction transferring electric power is because of having preferable convenience, on market, attract attention deeply once releasing, but there are many disappearances in the induction of contactless now transferring electric power product on reality is used, existing division is as follows:
(1) the electric power transmitting terminal of described contactless induction transferring electric power product is that a coil cooperates the resonant circuit emitted energy, the size of its emitted energy just can't change after energising, and if the electronic installation of demand end is when changing required power, transmitting terminal but can't change power, will cause the disappearance of underpower or power dissipation.
(2) resonant capacitance of receiving terminal secondary side and receiving coil are to utilize the parallel way setting, under the state of no-load operation, will continue consumed power, and cause having the disappearance that wastes energy.
(3) described coil is to utilize the insulating varnish copper-clad wire-wound system of single stamen to form, and the wireless power running time can be generated heat and to be caused that transmission efficiency is not good, power reduces.
(4) receiving terminal is not provided with safety circuit, if produce the situation of short circuit or super-high-current, just can allow electronic installation damage.
Therefore, how to solve the problem and the disappearance of existing contactless induction transferring electric power product, be the relevant manufacturer that is engaged in the industry and desire most ardently the direction place that research improves.
So, the creator is because above-mentioned problem and disappearance, be to collect related data, via assessing in many ways and considering, and to engage in the many years of experience of the industry accumulation, via constantly studying and revising, this kind automatic power adjustment is exported the frequency conversion type wireless power of size and the utility model patent of charging device is born but the beginning is designed.
Summary of the invention
First purpose of the present utility model is to be to provide a kind of frequency conversion type wireless power and charging device; described wireless for behind the charging receiver reception power supply that power supply base transmitted; utilize the situation of detecting protection module detecting power supply; again by after second microprocessor analysis; with signal generating circuit; second resonant circuit and second coil transfer to power supply base with signal; after power supply base receives signal; utilize detection module to detect signal and voltage; again with power controlling switch driving circuit automatic power adjustment output size after the first microprocessor analysis; allow the power supply base transmission meet wireless power for charging receiver demand; the loss of power transfer and the conversion of surplus power are reduced, and then reach energy-conservation effect.
Second purpose of the present utility model is to be to provide a kind of frequency conversion type wireless power and charging device, the power switch driving circuit of power supply base is to be parallel with the first MOS (metal-oxide-semiconductor) memory array and the second MOS (metal-oxide-semiconductor) memory array with full half-bridge drive circuit, full half-bridge drive circuit can quick power switched be exported under the situation of continuous operation that constantly is electrically connected, full half-bridge drive circuit more can be when no work, cut off the electric leakage of the first MOS (metal-oxide-semiconductor) memory array and the second MOS (metal-oxide-semiconductor) memory array channel, drop to minimumly with static state consumption, reach purpose of energy saving thus circuit.
The 3rd purpose of the present utility model is to be to provide a kind of frequency conversion type wireless power and charging device, but utilize the stranded back of the multiply enamelled wire bonding wire rod of viscosity insulation material, coiling forms first coil and second coil of individual layer flattened rectangular, make first coil and second coil under high frequency, not only have Low ESR and more can have enough inductance values, reach first coil and second coil thus and when delivering power, reduce the purpose that produces heat, raising transmission efficiency, improves maximum power and lifting energy-saving effect.
The 4th purpose of the present utility model is to be to provide a kind of frequency conversion type wireless power and charging device, wirelessly utilize the connect resonant capacitance of second resonant circuit of second coil for the charging receiver, when making its resonance non-loaded zero consumption, and can obtain powerful advantage during heavy duty, reach energy-conservation thus and promote the purpose of efficient.
The 5th purpose of the present utility model is to be to provide a kind of frequency conversion type wireless power and charging device; wireless detecting protection module for the charging receiver is provided with breaking protection circuit between current rectifying and wave filtering circuit and voltage stabilizing circuit; voltage stabilizing circuit and lifting voltage stabilizing circuit are electrically connected with the current sense protective circuit again; the overcurrent that use can recover voluntarily in the current sense protective circuit fuse that opens circuit; can cut off the power supply of breaking protection circuit when making electric current excessive; or via the overcurrent of the current sense protective circuit fuse open circuit protection voluntarily that opens circuit; because of having duplicate protection; avoid cocking off and can promote; the effect of damaging, and then reach lifting product purpose safe in utilization.
In order to achieve the above object, the utility model provides a kind of frequency conversion type wireless power and charging device, and You Zhike connects power supply and utilizes the device of way of electromagnetic induction for charge electronic devices, and it comprises power supply base, wireless for the charging receiver, wherein:
Described power supply base is electrically connected with power circuit with first microprocessor, described power circuit electrically is connected to the power input interface that is connected with power supply, and described first microprocessor is electrically connected at the full half-bridge drive circuit of power switch driving circuit, its full half-bridge drive circuit is parallel with the first MOS (metal-oxide-semiconductor) memory array and the second MOS (metal-oxide-semiconductor) memory array, described two MOS (metal-oxide-semiconductor) memory arrays are electrically connected at first resonant circuit again, described first resonant circuit then is electrically connected with first coil that can receive signal and emitted energy and the detection module that is electrically connected at described first microprocessor, and described detection module is provided with to be detected described first signal that resonant circuit receives respectively and transmit the signal deteching circuit of result to described first microprocessor, voltage detecting circuit;
Described wireless second coil that can launch signal and receive electric power that is provided with for the charging receiver; described second coil is electrically connected with second resonant circuit; described second resonant circuit is electrically connected with the current rectifying and wave filtering circuit that receives its high-voltage ac power; described current rectifying and wave filtering circuit then is electrically connected with the voltage stabilizing circuit that receives the high-voltage ac power of current rectifying and wave filtering circuit in the detecting protection module and be converted into low-tension supply output; be electrically connected at the voltage detection circuit of described current rectifying and wave filtering circuit and voltage stabilizing circuit; be electrically connected with between described current rectifying and wave filtering circuit and the voltage stabilizing circuit and when electric current is excessive, be subjected to the control of second microprocessor to form the breaking protection circuit that disconnection is stopped power supply; but be electrically connected with temperature detection circuit with voltage stabilizing circuit again and reach the power output interface of power supply to electronic installation; voltage detection circuit; temperature detection circuit is electrically connected with and receives described second microprocessor that its signal is handled, and described second microprocessor is electrically connected at again and can receives its coding signal and produce the signal generating circuit of signal to described second resonant circuit again.
In the preferred implementation, the first microprocessor output of described power supply base has pulse width modulation signal and controlling signal to full half-bridge drive circuit, full half-bridge drive circuit is provided with and utilizes a resistance, the resistance capacitance delay circuit that one electric capacity is formed and be a reverse drive integrated circuit in parallel, one forward drive integrated circuit, described resistance capacitance delay circuit inputs to the reverse drive integrated circuit, pulse width modulation signal transfers to described resistance capacitance delay circuit and forward drive integrated circuit, the input lock of reverse drive integrated circuit then disposes a N type metal oxide semiconductor field-effect transistor, described N type metal oxide semiconductor field-effect transistor is connected with again and receives described first microprocessor controlling signal control input state is the switch of signal or ground connection, and reverse drive integrated circuit and forward drive ic output then are connected with the first MOS (metal-oxide-semiconductor) memory array and the second MOS (metal-oxide-semiconductor) memory array respectively.
In the preferred implementation, the first MOS (metal-oxide-semiconductor) memory array of described power supply base and the second MOS (metal-oxide-semiconductor) memory array are made up of a N type metal oxide semiconductor field-effect transistor and the collocation of P-type mos field-effect transistor, the two front end is arranged in pairs or groups respectively and is opened wide diode and the resistance that discharges and recharges coupling usefulness as mos field effect transistor, switch output high voltage source or ground connection with the driving signal that receives full half-bridge drive circuit, and connect behind the resonant capacitance of first resonant circuit with first coil, connect the first MOS (metal-oxide-semiconductor) memory array and the second MOS (metal-oxide-semiconductor) memory array respectively at two ends, its two end is used to accept anti-phase driving signal and forms the full-bridge type driving, or the first MOS (metal-oxide-semiconductor) memory array is cut into ground connection then forms the semibridge system drive circuit that output voltage reduces by half.
In the preferred implementation, but second coil of first coil of described power supply base and wireless confession charging receiver is to utilize the stranded wire rod of using the bonding formation of viscosity insulation material again of multiply enamelled wire, after utilizing mould to do the flattened rectangular coiling of individual layer, stay double lead to be drawn out to an end again, and form conductive part at the no slicker solder of each lead terminal weldering.
In the preferred implementation; described wireless for charging receiver detecting protection module voltage stabilizing circuit and power output interface between be electrically connected with electric current current sense protective circuit of open circuit protection voluntarily when excessive; the overcurrent that use can recover voluntarily in the current sense protective circuit fuse that opens circuit, current sense protective circuit are electrically connected at electric current again and can receive its signal when excessive and cut off breaking protection circuit and stop power supply to second microprocessor of electronic installation.
In the preferred implementation; described wireless detecting protection module for the charging receiver is provided with the lifting voltage stabilizing circuit that is electrically connected at voltage detection circuit again; voltage stabilizing circuit and lifting voltage stabilizing circuit then are electrically connected at can be by the current sense protective circuit of the external out-put supply of power output interface to electronic installation; voltage stabilizing circuit is electrically connected with the charge management circuit of charging module; described charge management circuit then is electrically connected with power supply by the lifting voltage stabilizing circuit; the current sense protective circuit transfers to the storage battery of power output interface, and described storage battery is electrically connected at voltage detection circuit.
In the preferred implementation; a connect resonant capacitance of second resonant circuit of described wireless second coil for the charging receiver; two ends are imported in the interchange that two ends is connected to the bridge rectifier of current rectifying and wave filtering circuit again; its current rectifying and wave filtering circuit is combined into by bridge rectifier and filter capacitor; current rectifying and wave filtering circuit is connected with the breaking protection circuit of being made up of a N type metal oxide semiconductor field-effect transistor and the collocation of P-type mos field-effect transistor in the detecting protection module again; the P-type mos field-effect transistor then connects voltage stabilizing circuit, and N type metal oxide semiconductor field-effect transistor is connected in second microprocessor of its collocation P-type mos field-effect transistor conducting state of control.
In the preferred implementation, described wireless power output interface for the charging receiver is USB or dc power plug, the socket that corresponds to electronic installation.
In sum, the utlity model has and promote efficient, plurality of advantages such as energy-conservation, safe.
Description of drawings
Fig. 1 is the calcspar of the utility model power supply base;
Fig. 2 is the wireless calcspar for the charging receiver of the utility model;
Fig. 3 is the circuit diagram of the full half-bridge drive circuit of the utility model;
Fig. 4 is the circuit diagram of the utility model power supply base part;
Fig. 5 is the wireless circuit diagram that receives general ability portion for charging of the utility model;
Fig. 6 is the vertical view of the utility model coil.
Description of reference numerals: 1-power supply base; The 11-first microprocessor; The 12-power circuit; 13-power switch driving circuit; The full half-bridge drive circuit of 131-; The 132-first MOS (metal-oxide-semiconductor) memory array; The 133-second MOS (metal-oxide-semiconductor) memory array; 14-first resonant circuit; 15-first coil; The 16-detection module; The 161-signal deteching circuit; The 162-voltage detecting circuit; The 17-power input interface; 2-is wireless for the charging receiver; 21-second coil; 22-second resonant circuit; The 23-current rectifying and wave filtering circuit; 24-detects protection module; The 241-voltage stabilizing circuit; The 242-voltage detection circuit; 243-lifting voltage stabilizing circuit; 244-current sense protective circuit; The 245-breaking protection circuit; The 246-temperature detection circuit; 25-second microprocessor; The 26-signal generating circuit; The 27-charging module; The 271-charge management circuit; The 272-storage battery; The 28-power output interface; The 3-power supply; The 4-electronic installation.
Embodiment
For reaching above-mentioned purpose and effect, technological means that the utility model adopted and structure thereof, the existing drawing illustrates in detail that with regard to preferred embodiment of the present utility model its feature and function are as follows, so that understanding fully.
See also shown in Fig. 1,2, be the calcspar of the utility model power supply base, wireless calcspar, find out that by knowing shown in the figure described frequency conversion type wireless power and charging device are to comprise power supply base 1, wireless for charging receiver 2 for the charging receiver; Wherein:
Described power supply base 1 is electrically connected with first microprocessor 11 and is connected with power supply 3 and can supplies the power circuit 12 of first microprocessor 11 low-tension supplies, and first microprocessor 11 is electrically connected with the power switch driving circuit 13 by power circuit 12 supply high voltage sourcies, its power switch driving circuit 13 is provided with the full half-bridge drive circuit 131 that electrically connects with first microprocessor 11, its full half-bridge drive circuit 131 is parallel with the first MOS (metal-oxide-semiconductor) memory array 132 and the second MOS (metal-oxide-semiconductor) memory array 133, the first MOS (metal-oxide-semiconductor) memory array 132 and the second MOS (metal-oxide-semiconductor) memory array 133 are electrically connected at first resonant circuit 14 again, 14 of first resonant circuits are electrically connected with first coil 15 that can receive the signal emitted energy and by power circuit 12 supply low-tension supplies and be electrically connected at the detection module 16 of first microprocessor 11, detection module 16 is provided with to be detected first resonant circuit 14 signal that receives respectively and transmit the signal deteching circuit 161 of result to first microprocessor 11, voltage detecting circuit 162.
Described wireless being provided with for charging receiver 2 can be launched signal and be utilized electromagnetic wave induction to receive second coil 21 of electric power; second coil 21 is electrically connected with second resonant circuit 22; second resonant circuit 22 is electrically connected with the current rectifying and wave filtering circuit 23 that receives its high-voltage ac power; 23 of current rectifying and wave filtering circuits are electrically connected with detecting protection module 24; the voltage stabilizing circuit 241 that its detecting protection module 24 is provided with the high-voltage ac power that receives current rectifying and wave filtering circuit 23 and is converted into low-tension supply output; detecting protection module 24 also is provided with the voltage detection circuit 242 that is electrically connected at current rectifying and wave filtering circuit 23 and voltage stabilizing circuit 241; detecting protection module 24 is provided with the lifting voltage stabilizing circuit 243 that is electrically connected at voltage detection circuit 242 again; 243 of voltage stabilizing circuit 241 and lifting voltage stabilizing circuits are electrically connected at externally out-put supply to the current sense protective circuit 244 of electronic installation 4; be electrically connected with breaking protection circuit 245 again between voltage stabilizing circuit 241 and the current rectifying and wave filtering circuit 23, be electrically connected with temperature detection circuit 246 with voltage stabilizing circuit 241 again.
Above-mentioned voltage detection circuit 242; current sense protective circuit 244; temperature detection circuit 246 is electrically connected with and receives second microprocessor 25 that its signal is handled; second microprocessor 25 is electrically connected at the breaking protection circuit 245 and the signal generating circuit 26 that can receive its signal again; signal generating circuit 26 also is electrically connected at second resonant circuit 22; wireless for being provided with the charging module 27 that is electrically connected at detecting protection module 24 voltage stabilizing circuits 241 in the charging receiver 2 again; its charging module 27 is provided with the charge management circuit 271 that voltage stabilizing circuit 241 low-tension supply that provides is provided; and charge management circuit 271 power supply that provides is provided is carried out storage batteries 272, storage battery 272 also electrically is connected to lifting voltage stabilizing circuit 243.
See also Fig. 1,3, shown in 4, calcspar for the utility model power supply base, the circuit diagram of full half-bridge drive circuit, the circuit diagram of power supply base part, find out that by knowing shown in the figure described first microprocessor 11 outputs have pulse-width modulation (PWN) signal and controlling signal to full half-bridge drive circuit 131, full half-bridge drive circuit 131 is provided with and utilizes a resistance, resistance capacitance (RC) delay circuit that electric capacity is formed and be a reverse drive integrated circuit in parallel, one forward drive integrated circuit, the resistance capacitance delay circuit inputs to the reverse drive integrated circuit, pulse width modulation signal transfers to RC delay circuit and forward drive integrated circuit, the input lock of reverse drive integrated circuit then disposes a N type metal oxide semiconductor field-effect transistor (MOSFET), N type metal oxide semiconductor field-effect transistor is connected with the switch that receives first microprocessor 11 controlling signal again, controlling input state by microprocessor is signal or ground connection, and reverse drive integrated circuit and forward drive ic output then are connected with the first MOS (metal-oxide-semiconductor) memory array 132 and the second MOS (metal-oxide-semiconductor) memory array 133 respectively.
The first above-mentioned MOS (metal-oxide-semiconductor) memory array 132 and the second MOS (metal-oxide-semiconductor) memory array 133 are made up of a N type metal oxide semiconductor field-effect transistor and the collocation of P-type mos field-effect transistor, arrange in pairs or groups respectively diode and resistance of the two front end discharges and recharges coupling as the mos field effect transistor switch and uses, switch output high voltage source or ground connection with the driving signal that receives full half-bridge drive circuit 131, and behind the resonant capacitance with first coil, 15 series connection, first resonant circuit 14, connect the first MOS (metal-oxide-semiconductor) memory array 132 and the second MOS (metal-oxide-semiconductor) memory array 133 respectively at two ends, its two end can be accepted anti-phase driving signal and form the full-bridge type driving, or the first MOS (metal-oxide-semiconductor) memory array 132 is cut into ground connection then forms the semibridge system drive circuit that output voltage reduces by half.
See also Fig. 2; shown in Figure 5; be the wireless calcspar of the utility model for the charging receiver; the wireless circuit diagram that receives general ability portion for charging; find out by knowing shown in the figure; a described wireless resonant capacitance that supplies second coil, 21 series connection, second resonant circuit 22 of charging receiver 2; two ends are imported in the interchange that two ends is connected to the bridge rectifier of current rectifying and wave filtering circuit 23 again; its current rectifying and wave filtering circuit 23 is combined into by bridge rectifier and filter capacitor; current rectifying and wave filtering circuit 23 is connected with the breaking protection circuit of being made up of a N type metal oxide semiconductor field-effect transistor and the collocation of P-type mos field-effect transistor in the detecting protection module 24 245 again; the P-type mos field-effect transistor then connects voltage stabilizing circuit 241, and N type metal oxide semiconductor field-effect transistor is for connecting second microprocessor 25 to control the P-type mos field-effect transistor conducting state of its collocation.
See also Fig. 1; shown in 2; calcspar for the utility model power supply base; wireless calcspar for the charging receiver; find out by knowing shown in the figure; described power supply base 1 supplies charging receiver 2 in use with wireless; be that power supply base 1 is connected power supply 3; the electric power that power supply 3 is provided just can be after 13 conversions of overpower switch driving circuit; becoming the electromagnetic wave signal by first resonant circuit, 14 harmonic conversion reliefs, first coil 15 by electromagnetic conversion launches; wireless 2 of the receivers that supply to charge utilize second coil 21 to carry out electromagnetic wave induction and receive the electromagnetic wave signal that power supply base 1 is sent; become High Level AC Voltage by second resonant circuit, 22 harmonic conversion again and export current rectifying and wave filtering circuit 23 to; be supplied to electronic installation 4 to charge after being converted into low-tension supply via the voltage stabilizing circuit 241 of detecting protection module 24 again, reach the effect of wireless charging thus.
When charging; the temperature detection circuit 246 of detecting protection module 24 will utilize temperature sensor that the low-tension supply that voltage stabilizing circuit 241 is provided is detected; and offer second microprocessor 25 and carry out analyzing and processing; when if temperature surpasses predetermined value; but second microprocessor, 25 transfer encoding signals are to signal generating circuit 26; signal generating circuit 26 signal of will encoding is sneaked into second resonant circuit 22; the signal that allows the emission of second coil 21 reduce power outputs or stop power output is to power supply base 1; 1 of power supply base is received the continuous signal filtration taking-up that contained signal generating circuit 26 produces in the signal with 161 pairs first coils 15 of signal deteching circuit and is transferred to first microprocessor 11; and (voltage detecting circuit 162 is to current rectifying and wave filtering circuit 23 to become direct current to transfer to first microprocessor 11 with the alternating current step-down rectifier that 162 pairs first coil 15 signals that received of voltage detecting circuit include; voltage stabilizing circuit 241; lifting voltage stabilizing circuit 243; storage battery 272 multiple spots such as grade carry out detecting voltage); behind the signal of first microprocessor 11 analytic signal testing circuits 161 and voltage detecting circuit 162; elder generation's calculating optimum frequency and type of drive transfer to full half-bridge drive circuit 131 again; allow full half-bridge drive circuit 131 adjust power output; allow the loss of power transfer reduce, and wireless surplus power conversion of being born for charging receiver 2 inner bodies also will reduce significantly.
See also Fig. 1; shown in Figure 2; calcspar for the utility model power supply base; wireless calcspar for the charging receiver; find out by knowing shown in the figure; the described wireless charging receiver 2 that supplies can be provided with charging module 27; allow the voltage stabilizing circuit 241 of detecting protection module 24 can supply power to the charge management circuit 271 of charging module 27; the charged state that charge management circuit 271 just can be controlled storage battery 272 (as just is full of and stops power supply; underfill then begins charging etc.); its storage battery 272 can be Ni-MH battery or lithium ion battery; the electric power of storage battery 272 is by the lifting voltage stabilizing circuit 243 of detecting protection module 24; voltage improved or be reduced to electronic installation 4 required magnitudes of voltage charge; allow thus wireless for charging receiver 2 near and when receiving the electromagnetic wave signal that power supply base 1 transmitted, also can directly utilize storage battery 272 to come electronic installation 4 is charged.
See also shown in Figure 2, be the wireless calcspar of the utility model for the charging receiver, find out by knowing shown in the figure, described wireless detecting protection module 24 for charging receiver 2 is provided with breaking protection circuit 245 between current rectifying and wave filtering circuit 23 and voltage stabilizing circuit 241, when electric current is excessive, form disconnection by second microprocessor, 25 control breaking protection circuits 245, stop power supply with the protection internal circuit; The voltage stabilizing circuit 241 and the lifting voltage stabilizing circuit 243 of detecting protection module 24 are electrically connected with current sense protective circuit 244 again; the overcurrent that uses can recover voluntarily in the current sense protective circuit 244 fuse (ResetFuse) that opens circuit; by transmitting signal to the second microprocessor 25; can cut off the power supply of breaking protection circuit 245 when making electric current excessive; or via the overcurrent of the current sense protective circuit 244 fuse open circuit protection voluntarily that opens circuit; reach the design of dual security protection thus; and current sense protective circuit 244 is the power supply of integration voltage stabilizing circuit 241 with lifting voltage stabilizing circuit 243, and selects available voltage source supplies to give electronic installation 4 automatically.
See also Fig. 1, shown in Figure 2, be the calcspar of the utility model power supply base, wireless calcspar for the charging receiver, find out by knowing shown in the figure, described power supply base 1 is for to be electrically connected with power input interface 17 with power circuit 12, and its power input interface 17 can be USB (USB; Universal Serial Bus) or direct-current transformer, wirelessly be electrically connected with power output interface 28 for 2 current sense protective circuits 244 with detecting protection module 24 of charging receiver, its power output interface 28 can be USB (USB; Universal Serial Bus) or the dc power plug or the socket of electronic installation 4, its only the function of tool transmission power supply get final product, non-so promptly limit to claim of the present utility model, as utilize other modifications and equivalent structure to change, all should in like manner be contained in the claim of the present utility model, close and give Chen Ming.
In addition, see also Fig. 1,2, shown in 6, calcspar for the utility model power supply base, wireless calcspar for the charging receiver, the vertical view of coil, find out by knowing shown in the figure, but described first coil 15 and second coil 21 are to utilize the multiply enamelled wire stranded again with the bonding formation wire rod of viscosity insulation material, after its wire rod utilizes mould to do the flattened rectangular coiling of individual layer, stay double lead to be drawn out to an end again, and form conductive part at the no slicker solder of each lead terminal weldering, allow first coil 15 and second coil 21 under high frequency, have low-impedance advantage by this structure, and inductance value is also enough, reaches the heat that can produce when significantly reducing delivering power thus, significantly improve transmission efficiency and reach the purpose that significantly improves maximum power.
Above-mentioned frequency conversion type wireless power of the present utility model and charging device can have following advantage when reality is used, as:
(1) by the wireless situation of detecting 1 power supply of power supply bases for the detecting protection module 24 of charging receiver 2; quality as the resonance part; the relative position of secondary side receiving coil; secondary side receives factors such as load state; and utilize second microprocessor 25; signal generating circuit 26; second resonant circuit 22 and second coil, 21 transmission signals are to power supply base 1; make the output of power supply base 1 automatic power adjustment big or small; allow the loss of power transfer reduce; and the effective range of receiving coil is broader, more can allow wireless surplus power conversion of being born for charging receiver 2 inner bodies also reduce significantly.
(2) the power switch driving circuit 13 of described power supply base 1 utilizes the full half-bridge drive circuit 131 first MOS (metal-oxide-semiconductor) memory array 132 in parallel and the second MOS (metal-oxide-semiconductor) memory arrays 133, full half-bridge drive circuit 131 can quick power switched be exported under the situation of continuous operation that constantly is electrically connected, full half-bridge drive circuit 131 more can be when no work, cut off the electric leakage of the first MOS (metal-oxide-semiconductor) memory array 132 and the second MOS (metal-oxide-semiconductor) memory array, 133 passages, drop to minimum with static state consumption with circuit.
(3) but first coil 15 and second coil 21 utilize the multiply enamelled wire stranded again with the wire rod of the bonding formation of viscosity insulation material, coiling forms the flattened rectangular of individual layer, allows first coil 15 and second coil 21 not only have Low ESR under high frequency and more can have enough inductance values.
(4) wirelessly utilizing the resonant capacitance of second coil 21 series connection, second resonant circuit 22 for charging receiver 2, is zero to consume when making its resonance non-loaded, and can obtain powerful advantage during heavy duty.
(5) wireless detecting protection module 24 for charging receiver 2 is provided with breaking protection circuit 245 between current rectifying and wave filtering circuit 23 and voltage stabilizing circuit 241; voltage stabilizing circuit 241 and lifting voltage stabilizing circuit 243 are electrically connected with current sense protective circuit 244 again; in the current sense protective circuit 244 for using the overcurrent that can recover the voluntarily fuse that opens circuit; can cut off the power supply of breaking protection circuit 245 when making electric current excessive; or via the overcurrent of the current sense protective circuit 244 fuse open circuit protection voluntarily that opens circuit, to have the effect of duplicate protection to avoid cocking off, damaging.
So; the utility model is for being primarily aimed at frequency conversion type wireless power and charging device; and can be at power supply base 1 transmission power supply to the wireless receiver 2 that supplies to charge; after the wireless situation for charging receiver 2 utilization detecting protection modules 24 detecting institute power supplies; second microprocessor 25 is by signal generating circuit 26; second resonant circuit, 22 passback signals are to power supply base 1; 11 of the first microprocessors of power supply base 1 are analyzed after receiving detection module 16 detection signals; and by power switch driving circuit 13 automatic power adjustments output size; loss and unnecessary power transfer with the reduction power transfer are main key protection point; be only to make energy can obtain preferable use, and have energy-conservation advantage.
More than explanation is just illustrative for the utility model; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited; can make many modifications; change, or equivalence, but all will fall in the protection range of the present utility model.
Claims (8)
1. frequency conversion type wireless power and charging device is characterized in that, You Zhike connects power supply and also utilizes the device of way of electromagnetic induction for charge electronic devices, and it comprises power supply base, wireless for the charging receiver, wherein:
Described power supply base is electrically connected with power circuit with first microprocessor, described power circuit electrically is connected to the power input interface that is connected with power supply, and described first microprocessor is electrically connected at the full half-bridge drive circuit of power switch driving circuit, its full half-bridge drive circuit is parallel with the first MOS (metal-oxide-semiconductor) memory array and the second MOS (metal-oxide-semiconductor) memory array, described two MOS (metal-oxide-semiconductor) memory arrays are electrically connected at first resonant circuit again, described first resonant circuit then is electrically connected with first coil that can receive signal and emitted energy and the detection module that is electrically connected at described first microprocessor, and described detection module is provided with to be detected described first signal that resonant circuit receives respectively and transmit the signal deteching circuit of result to described first microprocessor, voltage detecting circuit;
Described wireless second coil that can launch signal and receive electric power that is provided with for the charging receiver; described second coil is electrically connected with second resonant circuit; described second resonant circuit is electrically connected with the current rectifying and wave filtering circuit that receives its high-voltage ac power; described current rectifying and wave filtering circuit then is electrically connected with the voltage stabilizing circuit that receives the high-voltage ac power of current rectifying and wave filtering circuit in the detecting protection module and be converted into low-tension supply output; be electrically connected at the voltage detection circuit of described current rectifying and wave filtering circuit and voltage stabilizing circuit; be electrically connected with between described current rectifying and wave filtering circuit and the voltage stabilizing circuit and when electric current is excessive, be subjected to the control of second microprocessor to form the breaking protection circuit that disconnection is stopped power supply; but be electrically connected with temperature detection circuit with voltage stabilizing circuit again and reach the power output interface of power supply to electronic installation; voltage detection circuit; temperature detection circuit is electrically connected with and receives described second microprocessor that its signal is handled, and described second microprocessor is electrically connected at again and can receives its coding signal and produce the signal generating circuit of signal to described second resonant circuit again.
2. frequency conversion type wireless power according to claim 1 and charging device, it is characterized in that, the first microprocessor output of described power supply base has pulse width modulation signal and controlling signal to full half-bridge drive circuit, full half-bridge drive circuit is provided with and utilizes a resistance, the resistance capacitance delay circuit that one electric capacity is formed and be a reverse drive integrated circuit in parallel, one forward drive integrated circuit, described resistance capacitance delay circuit inputs to the reverse drive integrated circuit, pulse width modulation signal transfers to described resistance capacitance delay circuit and forward drive integrated circuit, the input lock of reverse drive integrated circuit then disposes a N type metal oxide semiconductor field-effect transistor, described N type metal oxide semiconductor field-effect transistor is connected with again and receives described first microprocessor controlling signal control input state is the switch of signal or ground connection, and reverse drive integrated circuit and forward drive ic output then are connected with the first MOS (metal-oxide-semiconductor) memory array and the second MOS (metal-oxide-semiconductor) memory array respectively.
3. frequency conversion type wireless power according to claim 1 and charging device, it is characterized in that, the first MOS (metal-oxide-semiconductor) memory array of described power supply base and the second MOS (metal-oxide-semiconductor) memory array are made up of a N type metal oxide semiconductor field-effect transistor and the collocation of P-type mos field-effect transistor, the two front end is arranged in pairs or groups respectively and is opened wide diode and the resistance that discharges and recharges coupling usefulness as mos field effect transistor, switch output high voltage source or ground connection with the driving signal that receives full half-bridge drive circuit, and connect behind the resonant capacitance of first resonant circuit with first coil, connect the first MOS (metal-oxide-semiconductor) memory array and the second MOS (metal-oxide-semiconductor) memory array respectively at two ends, its two end is used to accept anti-phase driving signal and forms the full-bridge type driving, or the first MOS (metal-oxide-semiconductor) memory array is cut into ground connection then forms the semibridge system drive circuit that output voltage reduces by half.
4. frequency conversion type wireless power according to claim 1 and charging device, it is characterized in that, but second coil of first coil of described power supply base and wireless confession charging receiver is to utilize the stranded wire rod of using the bonding formation of viscosity insulation material again of multiply enamelled wire, after utilizing mould to do the flattened rectangular coiling of individual layer, stay double lead to be drawn out to an end again, and form conductive part at the no slicker solder of each lead terminal weldering.
5. frequency conversion type wireless power according to claim 1 and charging device; it is characterized in that; described wireless for charging receiver detecting protection module voltage stabilizing circuit and power output interface between be electrically connected with electric current current sense protective circuit of open circuit protection voluntarily when excessive; the overcurrent that use can recover voluntarily in the current sense protective circuit fuse that opens circuit, current sense protective circuit are electrically connected at electric current again and can receive its signal when excessive and cut off breaking protection circuit and stop power supply to second microprocessor of electronic installation.
6. frequency conversion type wireless power according to claim 1 and charging device; it is characterized in that; described wireless detecting protection module for the charging receiver is provided with the lifting voltage stabilizing circuit that is electrically connected at voltage detection circuit again; voltage stabilizing circuit and lifting voltage stabilizing circuit then are electrically connected at can be by the current sense protective circuit of the external out-put supply of power output interface to electronic installation; voltage stabilizing circuit is electrically connected with the charge management circuit of charging module; described charge management circuit then is electrically connected with power supply by the lifting voltage stabilizing circuit; the current sense protective circuit transfers to the storage battery of power output interface, and described storage battery is electrically connected at voltage detection circuit.
7. frequency conversion type wireless power according to claim 1 and charging device; it is characterized in that; a connect resonant capacitance of second resonant circuit of described wireless second coil for the charging receiver; two ends are imported in the interchange that two ends is connected to the bridge rectifier of current rectifying and wave filtering circuit again; its current rectifying and wave filtering circuit is combined into by bridge rectifier and filter capacitor; current rectifying and wave filtering circuit is connected with the breaking protection circuit of being made up of a N type metal oxide semiconductor field-effect transistor and the collocation of P-type mos field-effect transistor in the detecting protection module again; the P-type mos field-effect transistor then connects voltage stabilizing circuit, and N type metal oxide semiconductor field-effect transistor is connected in second microprocessor of its collocation P-type mos field-effect transistor conducting state of control.
8. frequency conversion type wireless power according to claim 1 and charging device is characterized in that, described wireless power output interface for the charging receiver is USB or dc power plug, the socket that corresponds to electronic installation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201392873U CN201656576U (en) | 2010-03-12 | 2010-03-12 | Variable-frequency wireless powering and charging device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201392873U CN201656576U (en) | 2010-03-12 | 2010-03-12 | Variable-frequency wireless powering and charging device |
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| CN201656576U true CN201656576U (en) | 2010-11-24 |
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