CN201975838U - Wireless charger - Google Patents
Wireless charger Download PDFInfo
- Publication number
- CN201975838U CN201975838U CN2011201211919U CN201120121191U CN201975838U CN 201975838 U CN201975838 U CN 201975838U CN 2011201211919 U CN2011201211919 U CN 2011201211919U CN 201120121191 U CN201120121191 U CN 201120121191U CN 201975838 U CN201975838 U CN 201975838U
- Authority
- CN
- China
- Prior art keywords
- circuit
- wireless charger
- charging platform
- switching circuit
- end mouth
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a wireless charger, belonging to the field of mobile termination. The wireless charger comprises a charging platform and a power supply connection port, wherein the charging platform is connected with the power supply connection port; the power supply connection port is connected with an external power supply so as to provide input voltage to the charging platform; the charging platform comprises a DC/DC circuit, a power supply conversion circuit and a transmitting coil; the DC/DC circuit, the power supply conversion circuit and the transmitting coil are electrically connected in sequence; the charging platform further comprises a switching circuit; the switching circuit is connected in series to a loop formed by the DC/DC circuit, the power supply conversion circuit and the transmitting coil; and the switching circuit can be connected or disconnected with the loop.
Description
Technical field
The utility model relates to field of mobile terminals, particularly a kind of wireless charger.
Background technology
Wireless charging is the wide new technology of present development prospect, when charging,, the equipment that is recharged just can charge as long as being placed on its supporting charging platform, just can finish charging process by the inductive energy transmission of low-frequency electromagnetic wave, and need not to connect charge cable.For safety and power saving, when not placing by fill device on the platform, the standby testing circuit will be turned off power conversion circuit, and charging platform will stop transmitting power.
After prior art was analyzed, utility model people found that prior art has following shortcoming at least:
In the prior art, wireless charger and be recharged and adopt communication protocol between the equipment, discern the equipment that whether is recharged by communicating by letter, when having detected by fill device, restart the Power Conversion transmitting power, so no matter whether be recharged equipment exists, the standby testing circuit of wireless charger is still in work, always, caused waste to resource at the power consumption state.
The utility model content
The utility model embodiment provides a kind of wireless charger.Described technical scheme is as follows:
A kind of wireless charger, described wireless charger comprises charging platform and power connector end mouth, described charging platform is connected with described power connector end mouth, wherein, described power connector end mouth connects external power supply, for described charging platform provides input voltage, described charging platform comprises: direct current conversion direct current DC/DC circuit, power converting circuit and transmitting coil, described DC/DC circuit, described power converting circuit is electrically connected and described transmitting coil is electrically connected successively, described charging platform also comprises: switching circuit, described switching circuit is connected on described DC/DC circuit, described power converting circuit be electrically connected and the loop of described transmitting coil composition in, described switching circuit can conducting or is disconnected described loop.
The beneficial effect of the technical scheme that the utility model embodiment provides is:
In the utility model embodiment, utilize switching circuit to detect and whether place on the wireless charger by fill device, and by this switching circuit conducting or disconnect to realize the idle function of wireless charger, and, make this wireless charger when standby, realize Zero-power-consumption standby, reach the highest electronic product standby energy consumption requirement, can save considerable electric energy, satisfy environment protection requirement better.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of wireless charger of providing of the utility model embodiment;
Fig. 2 is the structural representation of a kind of wireless charger of providing of the utility model embodiment;
Fig. 3 is the part-structure schematic diagram of a kind of wireless charger example of providing of the utility model embodiment;
Fig. 4 is the part-structure schematic diagram of a kind of wireless charger example of providing of the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model execution mode is described in further detail below in conjunction with accompanying drawing.
For energy-conserving and environment-protective, the utility model embodiment provides a kind of wireless charger, referring to Fig. 1, this wireless charger comprises charging platform A and power connector end mouth B, this charging platform A is connected with this power connector end mouth B, wherein, this power connector end mouth B connects external power supply, A provides input voltage for this charging platform, this charging platform A comprises: direct current conversion direct current DC/DC circuit 101, power converting circuit 102 and transmitting coil 103, this DC/DC circuit 101, this power converting circuit 102 is electrically connected and this transmitting coil 103 is electrically connected successively, it is characterized in that, this charging platform A also comprises: switching circuit 100, and this switching circuit 100 is connected on this DC/DC circuit 101, in the loop that this power converting circuit 102 is electrically connected and this transmitting coil 103 is formed, this switching circuit 100 can conducting or is disconnected this loop.Preferably, this switching circuit 100 is connected electrically between power connector end mouth B and the DC/DC circuit 101.
In the present embodiment, because switching circuit 100 is connected in the loop of this DC/DC circuit 101, these power converting circuit 102 electrical connections and this transmitting coil 103 compositions, when switching circuit 100 conductings, the loop conducting, the wireless charger operate as normal can be for being charged by fill device, when switching circuit 100 disconnects, the loop disconnects, and wireless charger is in no power consumption state.
In charging platform A, DC/DC circuit 101 is used for the input voltage of charging platform is converted to the voltage that is fit to power converting circuit 102, and DC/DC circuit 101 is connected with power converting circuit 102; This power converting circuit 102 is used for the direct voltage of DC/DC circuit 101 outputs is converted to the alternating voltage of high frequency, this power converting circuit 102 can adopt full-bridge or half-bridge topology circuit, this power converting circuit 102 is connected with transmitting coil 103, and this transmitting coil 103 is converted to electromagnetic wave with alternating voltage and launches.
Referring to Fig. 2, Fig. 2 is the structural representation of a kind of wireless charger of providing of the utility model embodiment.The wireless charger of this embodiment comprises: comprise charging platform A and power connector end mouth B, this charging platform A is connected with this power connector end mouth B, wherein, this power connector end mouth B connects external power supply, A provides input voltage for this charging platform, this charging platform A comprises: direct current conversion direct current DC/DC circuit 101, power converting circuit 102 and transmitting coil 103, this DC/DC circuit 101, this power converting circuit 102 is electrically connected and this transmitting coil 103 is electrically connected successively, it is characterized in that, this charging platform A also comprises: switching circuit 100, this switching circuit 100 comprises electronic switch 100a and key switch 100b, wherein, this electronic switch is connected electrically between the end and this DC/DC circuit of this power connector end mouth, one end of this key switch is connected with this electronic switch, the other end is connected with this power connector end mouth, and this electronic switch is according to the state conducting or the disconnection of this key switch.Preferably, electronic switch 100a is PMOS or PNP switch, and key switch 100b is a mechanical switch.
In the present embodiment, this wireless charger has the draw-in groove that is used to place by fill device, and key switch 100b is arranged in draw-in groove, and the state of key switch 100b is according to whether be positioned over this draw-in groove inner conversion by fill device.Particularly, when being placed on by fill device in the draw-in groove of wireless charger, key switch 100b closure, electronic switch 100a conducting, the loop conducting, the wireless charger normal operation is for being charged by fill device;
When not being placed on by fill device in the draw-in groove of wireless charger, key switch 100b disconnects, not conducting of electronic switch 100a, and late-class circuit is not worked, because circuit disconnects, so the external power source zero-power has reached the purpose of wireless charger standby and zero-power.
For example, Fig. 3 and Fig. 4 be respectively when electronic switch 100a be PMOS (positive channel Metal Oxide Semiconductor, positive channel metal oxide semiconductor) and PNP (Positive Negative Positive, bipolarity) circuit connecting mode in charging platform during triode, resistance R 1 and R2 are biasing resistor.
Wireless charger among the utility model embodiment is used to by fill device and charges, and this can be portable terminal by fill device, as mobile phone, MP3, PDA etc.This is comprised receiving coil, current rectifying and wave filtering circuit, voltage stabilizing circuit and the charging circuit that is complementary with middle transmitting coil embodiment illustrated in fig. 1 by fill device, receiving coil is converted to alternating voltage with the electromagnetic wave that receives, this receiving coil is connected with current rectifying and wave filtering circuit, this current rectifying and wave filtering circuit is used for the alternating voltage of receiving coil output is converted to direct voltage, this current rectifying and wave filtering circuit is also connected with voltage stabilizing circuit, this voltage stabilizing circuit is used for stabilizing to 5V voltage with changing bigger voltage, this voltage stabilizing circuit is connected with charging circuit, for charging circuit provides input voltage.In charging process, DC/DC 101 is used for the input voltage of charging platform is converted to the voltage that is fit to power converting circuit 102, and DC/DC 101 connects with power converting circuit 102; This power converting circuit 102 is used for the direct voltage of DC/DC output is converted to the alternating voltage of high frequency, this power converting circuit 102 can adopt full-bridge or half-bridge topology circuit, this power converting circuit 102 is connected with transmitting coil 103, this transmitting coil 103 is converted to electromagnetic wave with alternating voltage and launches, and receiving coil is converted to alternating voltage with the electromagnetic wave that receives, this receiving coil is connected with current rectifying and wave filtering circuit, this current rectifying and wave filtering circuit is used for the alternating voltage of receiving coil output is converted to direct voltage, this current rectifying and wave filtering circuit is also connected with voltage stabilizing circuit, this voltage stabilizing circuit is used for stabilizing to 5V voltage with changing bigger voltage, this voltage stabilizing circuit is connected with charging circuit, for charging circuit provides input voltage.
In the utility model embodiment, utilize key switch to detect and whether place on the wireless charger by fill device, and utilize key switch control electronic switch to realize the idle function of wireless charger, and, make this wireless charger when standby, realize Zero-power-consumption standby, reach the highest electronic product standby energy consumption requirement, can save considerable electric energy, satisfy environment protection requirement better.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (5)
1. wireless charger, described wireless charger comprises charging platform and power connector end mouth, described charging platform is connected with described power connector end mouth, wherein, described power connector end mouth connects external power supply, for described charging platform provides input voltage, described charging platform comprises: direct current conversion direct current DC/DC circuit, power converting circuit and transmitting coil, described DC/DC circuit, described power converting circuit is electrically connected and described transmitting coil is electrically connected successively, it is characterized in that, described charging platform also comprises: switching circuit, described switching circuit is connected on described DC/DC circuit, described power converting circuit be electrically connected and the loop of described transmitting coil composition in, described switching circuit can conducting or is disconnected described loop.
2. wireless charger according to claim 1 is characterized in that, described switching circuit is connected electrically between described power connector end mouth and the described DC/DC circuit.
3. wireless charger according to claim 1 and 2, it is characterized in that, described switching circuit comprises electronic switch and key switch, wherein, described electronic switch is connected electrically between the end and described DC/DC of described power connector end mouth, one end of described key switch is connected with described electronic switch, and the other end is connected with described power connector end mouth, and described electronic switch is according to the state conducting or the disconnection of described key switch.
4. wireless charger according to claim 3 is characterized in that, described electronic switch is PMOS or PNP.
5. wireless charger according to claim 3, it is characterized in that, described wireless charger has the draw-in groove that is used to place by fill device, and described key switch is arranged in described draw-in groove, and whether the state of described key switch is positioned over described draw-in groove inner conversion according to described by fill device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201211919U CN201975838U (en) | 2011-04-22 | 2011-04-22 | Wireless charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201211919U CN201975838U (en) | 2011-04-22 | 2011-04-22 | Wireless charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201975838U true CN201975838U (en) | 2011-09-14 |
Family
ID=44580936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201211919U Expired - Lifetime CN201975838U (en) | 2011-04-22 | 2011-04-22 | Wireless charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201975838U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753123A (en) * | 2013-12-27 | 2015-07-01 | 凌通科技股份有限公司 | Wireless charging circuit suitable for mobile power supply and mobile power supply using same |
| CN112311048A (en) * | 2019-08-02 | 2021-02-02 | 苹果公司 | Thermally optimized RX wireless charger for small RX devices |
-
2011
- 2011-04-22 CN CN2011201211919U patent/CN201975838U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753123A (en) * | 2013-12-27 | 2015-07-01 | 凌通科技股份有限公司 | Wireless charging circuit suitable for mobile power supply and mobile power supply using same |
| CN104753123B (en) * | 2013-12-27 | 2017-06-06 | 凌通科技股份有限公司 | Wireless charging circuit suitable for mobile power supply and mobile power supply using same |
| CN112311048A (en) * | 2019-08-02 | 2021-02-02 | 苹果公司 | Thermally optimized RX wireless charger for small RX devices |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103236568A (en) | Charging method and charging system | |
| CN103259339A (en) | Terminal device and method for wireless charging between terminal devices | |
| CN104467116A (en) | Charging method and device and charger | |
| CN105071506A (en) | Charger with automatic cut-off function and using method thereof | |
| CN104065145A (en) | Wireless charging device and charging method thereof | |
| CN201312131Y (en) | Cell phone charging circuit and cell phone battery charging system | |
| CN201975838U (en) | Wireless charger | |
| CN202153645U (en) | Electric device based on OTG interface charging | |
| US10164461B2 (en) | Wireless charging device, system, and method based on back cover mobile power supply | |
| CN203445675U (en) | Charger charging circuit and charger | |
| CN205004814U (en) | Auto -power -off function charger has | |
| CN204304496U (en) | A kind of charger for mobile phone | |
| CN106786996B (en) | A kind of used in communication machine room battery group floating charge control device | |
| CN205945216U (en) | Electronic equipment power supply system | |
| CN202721481U (en) | Novel wireless charger | |
| CN201298570Y (en) | Rechargeable battery and charger for mobile telephone | |
| CN204257957U (en) | A kind of Mobile phone charging socket | |
| CN204290441U (en) | Wireless charger | |
| CN208241371U (en) | A kind of pair is filled wireless charging transmitter | |
| CN202094685U (en) | Mobile phone charger | |
| CN202749882U (en) | Novel zero-consumption wireless charger | |
| CN201178382Y (en) | Electric power change-over circuit | |
| CN204928283U (en) | Solar energy wireless cell -phone charger | |
| CN204761169U (en) | Wireless receiving module and wireless charging system | |
| CN204216573U (en) | A kind of energy-saving safe power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518129 Building 2, B District, Bantian HUAWEI base, Longgang District, Shenzhen, Guangdong. Patentee after: Huawei terminal (Shenzhen) Co.,Ltd. Address before: 518129 Building 2, B District, Bantian HUAWEI base, Longgang District, Shenzhen, Guangdong. Patentee before: HUAWEI DEVICE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181221 Address after: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee after: HUAWEI DEVICE Co.,Ltd. Address before: 518129 Building 2, B District, Bantian HUAWEI base, Longgang District, Shenzhen, Guangdong. Patentee before: Huawei terminal (Shenzhen) Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |