CN205622278U - Wireless charging device and wireless charging system - Google Patents
Wireless charging device and wireless charging system Download PDFInfo
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- CN205622278U CN205622278U CN201620411471.6U CN201620411471U CN205622278U CN 205622278 U CN205622278 U CN 205622278U CN 201620411471 U CN201620411471 U CN 201620411471U CN 205622278 U CN205622278 U CN 205622278U
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Abstract
The utility model discloses a wireless charging device and wireless charging system belongs to the wireless charging technology field. This wireless charging device is including being used for the power input connector who is connected with the external power power, the carrier wave oscillation circuit who is used for producing the 13.56MHz carrier wave, power amplification circuit and first non - to connect the induction antenna, carrier wave oscillation circuit's input and power input connector are connected, and the output is connected with power amplification circuit's input, and power amplification circuit's output and first non - meet response antenna connection, power amplification circuit and power input connector are connected. Adopt the utility model provides a when wireless charging device and wireless charging system charged to the rechargeable devices who satisfies ISO1443 standard, the non -contact induction antenna that can directly adopt rechargeable devices was accomplished and is charged, need not to design alone the charge coil again, and the demand of charging that satisfies the less equipment of volume that can be better has reduced the wireless cost that charges, improves charge efficiency.
Description
Technical field
The utility model relates to wireless charging technical field, is specifically related to a kind of wireless charging device and wireless charging system.
Background technology
With popularizing of contact type intelligent card, the non-theory that connects near field meeting ISO14443 standard (non-contact IC card standard) is widely used in payment technical field, and increasing wearable device is also integrated with this application.The rapidity of wearable device charging, convenience are one of its important performances.The near field of ISO14443 standard is non-connects theory, can carry out the transmission of energy, can realize the function of charging from theoretical angle.But owing to its theoretical foundation is mainly used for the transmission of data, the energy that can transmit is less, and inefficient.If able to improve its transmission energy and efficiency, this theory is applied to charging field, the design of the wireless charging of wearable device can be simplified, reduce its cost realizing wireless charging.
It is upper and lower that the practical at present frequency of wireless charging system is about 125kHz, its receiving terminal and transmitting terminal are required for individually being served only for aerial coil and the chip of charging, and owing to its carrier frequency is relatively low, required winding volume is bigger than normal, the wearable device for small volume is difficult to realize.
Utility model content
For defect present in prior art, the purpose of this utility model is to provide a kind of wireless charging device that can improve wireless charging efficiency and low cost and wireless charging system.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of wireless charging device, including for be connected with externally fed power supply power input interface, for producing, the carrier oscillation circuit of 13.56MHz carrier wave, power amplification circuit and first are non-connects induction antenna；
The input of described carrier oscillation circuit is connected with power input interface, and output is connected with the input of power amplification circuit, and the output of power amplification circuit and the first non-induction antenna that connects connect；Power amplification circuit is connected with power input interface.
Further, a kind of wireless charging device as above: also including the rechargeable battery being connected with power input interface, rechargeable battery is connected with carrier oscillation circuit and power amplification circuit respectively.
Further, a kind of wireless charging device as above, also include for controlling the battery control switch whether rechargeable battery powers, and be used for controlling power input interface and be used to rechargeable battery charging, be also used to the mode of operation switching switch of module for power supply to be powered；Described module to be powered includes described carrier oscillation circuit and power amplification circuit.
Further, a kind of wireless charging device as above, described power amplification circuit is two-way power amplification circuit.
Further, a kind of wireless charging device as above, a road input of described two-way power amplification circuit is directly connected with the output of carrier oscillation circuit, and the input of another road is connected through the output of phase inverter and carrier oscillation circuit.
Further, a kind of wireless charging device as above, it is characterised in that: described power amplification circuit is metal-oxide-semiconductor power amplification circuit.
Further, a kind of wireless charging device as above, the model of the metal-oxide-semiconductor in described metal-oxide-semiconductor power amplification circuit is FDV301N.
Further, a kind of wireless charging device as above, described wireless charging device is additionally provided with magnet.
The utility model additionally provides a kind of wireless charging system based on described wireless charging device, including charging equipment and described wireless charging device, described charging equipment includes that power supply and second non-connects induction antenna, the described second non-induction antenna that connects passes through rectification circuit and DC voltage and adjusts circuit and be connected with power supply, and the first non-induction antenna and second that connects non-connects induction antenna inductively.
Further, a kind of wireless charging system as above, when described wireless charging device is provided with magnet, described charging equipment also includes non-with power supply and second respectively connecing the main control chip that induction antenna is connected, being additionally provided with Hall element on charging equipment, described hall device is connected with main control chip.
The beneficial effects of the utility model are: when using wireless charging device provided by the utility model and wireless charging system to be charged the charging equipment meeting ISO1443 standard, the noncontact induction antenna (operating frequency is at the induction antenna of 13.56MHz) that can directly use charging equipment completes charging, without individually designed charge coil again, the charge requirement of the charging equipment (such as wearable device) of small volume can be better met, and the cost of wireless charging can be lowered, improve charge efficiency.
Brief description
Fig. 1 is the structural representation of a kind of wireless charging device in the utility model embodiment one；
Fig. 2 is a kind of electrical block diagram of carrier oscillation circuit output end in embodiment one；
Fig. 3 is a kind of electrical block diagram of two-way power amplification circuit in embodiment one；
Fig. 4 is the structural representation of a kind of wireless charging device in the utility model embodiment two；
Fig. 5 is the structural representation of 31 kinds of wireless charging systems of the utility model embodiment.
Detailed description of the invention
The utility model is described in further detail with detailed description of the invention below in conjunction with Figure of description.
Embodiment one
Fig. 1 shows the structural representation of a kind of wireless charging device providing in the present embodiment, as can be seen from Figure, this charging device mainly includes the 1st, non-connecing induction antenna 4 for producing the carrier oscillation circuit of 13.56MHz carrier wave the 2nd, power amplification circuit 3 and first for the power input interface that is connected with externally fed power supply.Wherein, the input of carrier oscillation circuit 2 is connected with power input interface 1, and output is connected with the input of power amplification circuit 3, and the output of power amplification circuit 3 and the first non-induction antenna 4 that connects connect；Power amplification circuit 3 is also connected with power input interface 1.
The wireless charging device that the present embodiment is provided, is connected with externally fed power supply by power input interface 1, it is hereby achieved that the working power of device, it is carrier oscillation circuit 2 that this working power is respectively used to and power amplification circuit 3 provides working power.Wherein, described first non-connect the induction antenna that induction antenna 4 refers to meet ISO14443 standard, i.e. operating frequency is the induction antenna of 13.56MHz, and the carrier wave that carrier oscillation circuit 2 produces is generally sine wave.
Wherein, the concrete form of power input interface 1 can select according to actual needs, it is preferred that power input interface 1 selects USB charging inlet, and external power source is by power supply that this USB charging inlet is charging device.In actual applications, difference according to the carrier oscillation circuit being used the 2nd, power amplification circuit 3, this device can also include a voltage transformation module, and power input interface 1 is output it voltage respectively and is converted to carrier oscillation circuit 2 and the operating voltage of power amplification circuit 3 by voltage transformation module.
nullUse the wireless charging device in the present embodiment can realize meeting the wireless charging of the charging equipment of ISO14443 standard，Charging principle is: after wireless charging device obtains power supply by power input interface 1，There is provided direct current for carrier oscillation circuit 2，Described DC conversion is produced the carrier wave that frequency is 13.56MHz by carrier oscillation circuit 2，The power of this carrier wave amplifies via power amplification circuit 3，So that it meets wireless charging requirement，Afterwards by first non-connect induction antenna 4 by with charging equipment non-connect induction antenna inductively by way of，Carrier wave after power amplification is passed to charging equipment，Charging equipment by its non-connect the AC energy that induction antenna inductive coupling arrives after，By rectification circuit, this AC energy is converted into direct current，And by voltage-regulating circuit, direct current is adjusted to the charge voltage range of charging equipment power supply，It is embodied as the charging of its power supply.
In order to improve wireless charging efficiency, described power amplification circuit 3 is preferably two-way power amplification circuit.Wherein, preferably, the waveform phase of the carrier signal of the dual input of two-way power amplification circuit differs 180 degree, i.e. a road input of two-way power amplification circuit is directly connected with the output of carrier oscillation circuit 2, and another road is connected through the output of phase inverter and carrier oscillation circuit 2.The two-way input waveform of double poweroutputamplification is anti-phase, is again superimposed together, can reach the effect making the non-energy connecing induction antenna 4 double after amplifying.
Described power amplification circuit 30 can select metal-oxide-semiconductor power amplification circuit, proves through repetition test, during the metal-oxide-semiconductor selecting model to be FDV301N, can realize good charging effect.
Fig. 2 shows a kind of electrical block diagram of the output of carrier oscillation circuit 2 in the present embodiment, carrier oscillation circuit 2 shown in figure opens, by the quartz crystal being formed by quartz crystal and phase inverter parallel connection, the circuit that shakes, and the output of A and B point in figure inputs respectively as the two-way of two-way power amplification circuit.In the present embodiment, employ continuous two phase inverters, the output waveform that quartz crystal is opened the circuit that shakes by first phase inverter has carried out shaping anti-phase, the phase place making the phase recovery of waveform be original waveform again after second phase inverter, thus A, B 2 output the carrier wave of two phase 180 degree.
Fig. 3 shows the circuit diagram of the two-way power amplification circuit of a kind of metal-oxide-semiconductor using model to be FDV301N, as can be seen from Figure, two-way power amplification circuit two-way input can be the output of the A point shown in Fig. 2 and B point, two-way input is the carrier wave of 13.56MHz, the waveform phase of the carrier wave of input differs 180 degree, carrier wave exports to the first non-induction antenna 4 that connects after power amplification circuit amplification, as shown in FIG..It should be noted that, Fig. 2 and Fig. 3 illustrate only a kind of schematic diagram of carrier oscillation circuit 2 and two-way power amplification circuit 3, in actual applications, can be as desired to select different carrier oscillation circuit 2 and power amplification circuit 3, and the value size of the various components and parts being used in Fig. 2 and Fig. 3 and components and parts is not unique yet, also all can apply according to reality and select.
Connect mode of operation to enable charging equipment to distinguish equipment non-and non-connect charge mode, improve charge efficiency, in the present embodiment, it is additionally provided with magnet 8 on described wireless charging device, now, one corresponding hall device can be set on charging equipment, magnet 8 and hall device support the use, hall device is when sensing magnet 8, by sending charging trigger to the main control chip of charging equipment, make charging equipment identify to be now in non-connecing charge mode, its non-induction antenna that connects can be controlled now be served only for the non-of power supply and connect charging, realize quick charge.
Embodiment two
Fig. 4 shows the structural representation of a kind of wireless charging device providing in the present embodiment, have in figure and can be seen that, the charging device of the present embodiment is in embodiment one on the basis of wireless charging device, also including the rechargeable battery 5 being connected with power input interface 1, rechargeable battery 5 is connected with carrier oscillation circuit 2 and power amplification circuit 3 respectively.
By this wireless charging device, can be powered for charging device by rechargeable battery 5 in the case of there is no externally fed power supply.In the case of wireless charging device is idle (for device to be charged charging), can also be connected with externally fed power supply by power input interface 1 and be embodied as rechargeable battery 5 and charge.
In the case that power input interface 1 is connected with externally fed power supply, the power supply simultaneously causing for module to be powered (carrier oscillation circuit 2 and power amplification circuit 3) power supply in order to avoid rechargeable battery 5 and power input interface 1 is chaotic, in the present embodiment, this wireless charging device also includes for controlling the battery control switch 6 whether rechargeable battery 5 powers, when there being externally fed power supply to provide power supply by power input interface 1 for carrier oscillation circuit 2 and power amplification circuit 3, rechargeable battery 5 can be controlled by battery control switch 6 not work, when without externally fed power supply, it is carrier oscillation circuit 2 and power amplification circuit 3 is powered that battery control switch 6 controls rechargeable battery 5.
In the case of wireless charging device is idle, when being charged for rechargeable battery 5 by power input interface 1, in order to avoid the connection of power input interface 1 and module to be powered causes power supply to waste, it is carried out in example, this wireless charging device also includes being used to rechargeable battery 5 charge for controlling power input interface 1, it is also used to the mode of operation switching switch 7 of module for power supply to be powered, in the case that power input interface 1 charges for rechargeable battery 5, mode of operation switching switch 7 control deenergization input interface 1 and the connection of module to be powered, when wireless charging device carries out wireless charging by power input interface 1 for charging equipment, mode of operation switching switch 7 control deenergization input interface 1 and the connection of rechargeable battery 5.
Embodiment three
Fig. 5 shows a kind of wireless charging system of the wireless charging device provided in based on embodiment one or embodiment two, this wireless charging system includes charging equipment and described wireless charging device, described charging equipment includes that power supply 10 and second non-connects induction antenna 20, second induction antenna 20 adjusts circuit by rectification circuit and DC voltage and is connected with power supply 10, and the first non-induction antenna 4 and second that connects non-connects induction antenna 20 inductively.
Non-induction antenna 20 is connect inductively by the first non-induction antenna 4 and second that connects between wireless charging device and charging equipment, the energy being produced by wireless charging device is sent to charging equipment, after charging equipment receives the AC energy that its induction antenna inductive coupling arrives, transferred to for DC voltage by rectification circuit, again by DC voltage adjust circuit DC voltage is adjusted to can for power supply 10 charge charge voltage range, it is achieved for the charging of power supply 10.
In the present embodiment, when being additionally provided with magnet 8 on described wireless charging device, described charging equipment also includes non-with power supply 10 and second respectively connecing the main control chip 30 that induction antenna 20 is connected, and charging equipment is additionally provided with hall device 40, and described hall device 40 is connected with main control chip.When needing the wireless charging carrying out charging equipment, by wireless charging device near charging equipment, hall device 40 on charging equipment can sense the magnet 8 on wireless charging device, now, hall device 40 can send a charging trigger to main control chip 30, when main control chip 30 receives charging trigger, it is judged that equipment is now in charge mode, and main control chip 30 controls the second non-induction antenna 20 that connects and is charged for power supply.By supporting the use of magnet 8 and hall device 40, main control chip 30 can be made to judge that its second non-induction antenna 20 that connects is in the non-mode of operation connecing data interaction, be in equipment charge pattern, thus more preferably realize the control to equipment wireless charging.
Charging equipment described in the utility model includes but is not limited to non-contact IC card, the wearable device meeting IS14443 standard.Use wireless charging device provided by the utility model and wireless charging system, the wireless charging scheme using operating frequency to be 13.56Mhz, for there is the equipment meeting ISO14443 standard, can individually designed charge coil, but directly use its data interaction aerial coil can complete charging, slow down the design of wireless charging, reduce the cost of wireless charging.
Obviously, those skilled in the art can carry out various change and modification without deviating from spirit and scope of the present utility model to the utility model.So, if these modifications of the present utility model and modification belong to the utility model claim and equivalent technology thereof, then the utility model is also intended to comprise these changes and modification.
Claims (10)
1. a wireless charging device, it is characterised in that: include connecing induction antenna (4) for the power input interface (1) being connected with externally fed power supply, the carrier oscillation circuit (2) being used for producing 13.56MHz carrier wave, power amplification circuit (3) and first are non-；
The input of described carrier oscillation circuit (2) is connected with power input interface (1), output is connected with the input of power amplification circuit (3), and the output of power amplification circuit (3) and the first non-induction antenna (4) that connects connect；Power amplification circuit (3) is connected with power input interface (1).
2. a kind of wireless charging device according to claim 1, it is characterized in that: also including the rechargeable battery (5) being connected with power input interface (1), rechargeable battery (5) is connected with carrier oscillation circuit (2) and power amplification circuit (3) respectively.
3. a kind of wireless charging device according to claim 2, it is characterized in that: also include for controlling the battery control switch (6) whether rechargeable battery (5) powers, and be used for controlling power input interface (1) and be used to rechargeable battery (5) charging, it is also used to mode of operation switching switch (7) of module for power supply to be powered；Described module to be powered includes described carrier oscillation circuit (2) and power amplification circuit (3).
4. a kind of wireless charging device according to claim 1, it is characterised in that: described power amplification circuit (3) is two-way power amplification circuit.
5. a kind of wireless charging device according to claim 4, it is characterized in that: a road input of described two-way power amplification circuit is directly connected with the output of carrier oscillation circuit (2), and the input of another road is connected through the output of phase inverter and carrier oscillation circuit (2).
6. a kind of wireless charging device according to one of claim 1 to 5, it is characterised in that: described power amplification circuit (3) is metal-oxide-semiconductor power amplification circuit.
7. a kind of wireless charging device according to claim 6, it is characterised in that: the model of the metal-oxide-semiconductor in described metal-oxide-semiconductor power amplification circuit (3) is FDV301N.
8. a kind of wireless charging device according to claim 1, it is characterised in that: it is additionally provided with magnet (8) on described wireless charging device.
9. a kind of wireless charging system based on the wireless charging device one of claim 1 to 8 Suo Shu, it is characterized in that: include charging equipment and described wireless charging device, described charging equipment includes that power supply (10) and second non-connects induction antenna (20), the described second non-induction antenna (20) that connects passes through rectification circuit and DC voltage and adjusts circuit and be connected with power supply (10), and the first non-induction antenna (4) and second that connects non-connects induction antenna (20) inductively.
10. a kind of wireless charging system according to claim 9, it is characterized in that: when described wireless charging device is provided with magnet (8), described charging equipment also includes non-with power supply (10) and second respectively connecing the main control chip (30) that induction antenna (20) is connected, being additionally provided with hall device (40) on charging equipment, described hall device (40) is connected with main control chip (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620411471.6U CN205622278U (en) | 2016-05-09 | 2016-05-09 | Wireless charging device and wireless charging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620411471.6U CN205622278U (en) | 2016-05-09 | 2016-05-09 | Wireless charging device and wireless charging system |
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| CN205622278U true CN205622278U (en) | 2016-10-05 |
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| CN201620411471.6U Active CN205622278U (en) | 2016-05-09 | 2016-05-09 | Wireless charging device and wireless charging system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846499A (en) * | 2016-05-09 | 2016-08-10 | 北京握奇智能科技有限公司 | Wireless charging device and wireless charging system |
| CN113572201A (en) * | 2021-08-20 | 2021-10-29 | 南京师范大学 | Low voltage ride through control method based on flexible working point control |
-
2016
- 2016-05-09 CN CN201620411471.6U patent/CN205622278U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846499A (en) * | 2016-05-09 | 2016-08-10 | 北京握奇智能科技有限公司 | Wireless charging device and wireless charging system |
| CN105846499B (en) * | 2016-05-09 | 2019-01-25 | 北京握奇智能科技有限公司 | A kind of wireless charging device and wireless charging system |
| CN113572201A (en) * | 2021-08-20 | 2021-10-29 | 南京师范大学 | Low voltage ride through control method based on flexible working point control |
| CN113572201B (en) * | 2021-08-20 | 2023-08-22 | 南京师范大学 | Low-voltage ride through control method based on flexible working point control |
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