CN204794180U - Control circuit that charges that cell -phone lithium cell is wireless - Google Patents
Control circuit that charges that cell -phone lithium cell is wireless Download PDFInfo
- Publication number
- CN204794180U CN204794180U CN201520430762.5U CN201520430762U CN204794180U CN 204794180 U CN204794180 U CN 204794180U CN 201520430762 U CN201520430762 U CN 201520430762U CN 204794180 U CN204794180 U CN 204794180U
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- circuit
- control circuit
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- charging control
- charging
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a control circuit that charges that cell -phone lithium cell is wireless, include: wireless transmitting module and wireless receiving module, wireless transmitting module includes power management circuit, power amplification circuit, frequency oscillation circuit and front end coupling coil, power supply is connected to the input of power management circuit, power amplification circuit and frequency oscillation circuit are connected to the output of power management circuit, power amplification circuit is connected to frequency oscillation circuit's output, front end coupling coil is connected to power amplification circuit's output, the wireless receiving module includes coupled secondary coil, rectification voltage stabilizing circuit, the control circuit that charges, constant current charging circuit and charge indication circuit. The utility model discloses simple structure, convenient to carry.
Description
Technical field
The utility model relates to cellular li-ion battery charging circuit, is specifically related to a kind of cellular li-ion battery wireless charging control circuit.
Background technology
At present, mobile phone is as the requisite contact instrument of people, along with cell-phone function is on the increase, screen constantly increases, due to the restriction of cell phone battery capacity, electric quantity consumption of mobile phone is too fast, may need at any time to charge, existing mobile phone is generally directly connected with AC power by handpiece adapter, or be connected with charger baby by charging wire, no matter be adopt AC power, or charger baby, all need to be connected by data charging wire, in the process connected, need to plug frequently, easy damage joint, and when there is no charging wire, also cannot carry out charging to cellular li-ion battery.
Utility model content
The utility model, according to above-mentioned prior art Problems existing, provides a kind of cellular li-ion battery wireless charging control circuit.
The technical scheme that the utility model provides is: a kind of cellular li-ion battery wireless charging control circuit, comprise: wireless transmitter module and wireless receiving module, described wireless transmitter module comprises electric power management circuit, power amplification circuit, frequency oscillation circuit and front end coupling coil, the input of described electric power management circuit connects power supply, the output of described electric power management circuit connects power amplification circuit and frequency oscillation circuit, the output of described frequency oscillation circuit connects power amplification circuit, the output of described power amplification circuit connects front end coupling coil, described wireless receiving module comprises secondary coupling coil, regulator rectifier circuit, charging control circuit, constant-current charging circuit and charging indication, described secondary coupling coil is connected with described regulator rectifier circuit, the output of described regulator rectifier circuit connects charging control circuit and constant-current charging circuit, the output of described charging control circuit connects constant-current charging circuit, the output of described charging control circuit connects charging indication.
Further, described frequency oscillation circuit adopts NE555 chip as the signal generator of frequency of oscillation, and described power amplification circuit adopts LC shunt-resonant circuit and switching tube.
Further, to be the enamelled wire of diameter 0.8mm close around 20 circles for described front end coupling coil and secondary coupling coil.
Further, described constant-current charging circuit also arranges current detector, the output of described current detector connects charging control circuit.
The beneficial effects of the utility model: the utility model charges to cellular li-ion battery by adopting wireless mode, do not need to adopt data charging wire to carry out the connection of power supply and mobile phone, by arranging charge management circuit, front end emission module is controlled, by arranging charging control circuit, lithium cell charging is controlled, structure is simple, easy to carry.
Accompanying drawing explanation
Fig. 1 is a kind of cellular li-ion battery wireless charging control circuit structure chart that the utility model proposes.
Embodiment
Below in conjunction with Figure of description, the utility model is further detailed.
See Fig. 1, it is a kind of cellular li-ion battery wireless charging control circuit structure chart that the utility model proposes.
As shown in Figure 1, a kind of cellular li-ion battery wireless charging control circuit, comprise: wireless transmitter module and wireless receiving module, described wireless transmitter module comprises electric power management circuit, power amplification circuit, frequency oscillation circuit and front end coupling coil, the input of described electric power management circuit connects power supply, the output of described electric power management circuit connects power amplification circuit and frequency oscillation circuit, the output of described frequency oscillation circuit connects power amplification circuit, the output of described power amplification circuit connects front end coupling coil, described wireless receiving module comprises secondary coupling coil, regulator rectifier circuit, charging control circuit, constant-current charging circuit and charging indication, described secondary coupling coil is connected with described regulator rectifier circuit, the output of described regulator rectifier circuit connects charging control circuit and constant-current charging circuit, the output of described charging control circuit connects constant-current charging circuit, the output of described charging control circuit connects charging indication.
In the utility model embodiment, utilize electromagnetic induction principle, the transmission that Energy Coupling realizes energy is carried out by coil, direct current conversion is carried out by electric power management circuit by external power supply, when secondary coupling coil and front end coupling coil near time, induced voltage is produced in secondary coupling coil, resonance is produced when the resonance frequency in secondary coupling coil loop is identical with front end coupling coil, voltage is maximum, there is best Energy Transfer effect, the electric current that secondary coupling coil exports through rectifying and voltage-stabilizing be lithium cell charging.
Further, described frequency oscillation circuit adopts NE555 chip as the signal generator of frequency of oscillation, and described power amplification circuit adopts LC shunt-resonant circuit and switching tube.
Further, to be the enamelled wire of diameter 0.8mm close around 20 circles for described front end coupling coil and secondary coupling coil.
Further, described constant-current charging circuit also arranges current detector, the output of described current detector connects charging control circuit.
The utility model adopts NE555 chip controls frequency of oscillation, structure is simple, it is convenient to control, by current detector, lithium battery charging circuit is detected, by charging control circuit, lithium cell charging is controlled, ensure lithium cell charging reliability, prevented current charge from causing damage to lithium battery, extend the useful life of lithium battery.
The beneficial effects of the utility model: the utility model charges to cellular li-ion battery by adopting wireless mode, do not need to adopt data charging wire to carry out the connection of power supply and mobile phone, by arranging charge management circuit, front end emission module is controlled, by arranging charging control circuit, lithium cell charging is controlled, structure is simple, easy to carry.
Above the utility model is described in detail, but the utility model is not limited to above-mentioned execution mode, in the ken that those of ordinary skill in the art possess, can also makes a variety of changes under the prerequisite not departing from the utility model aim.Do not depart from design of the present utility model and scope can make many other and change and remodeling.Should be appreciated that the utility model is not limited to specific execution mode, scope of the present utility model is defined by the following claims.
Claims (4)
1. a cellular li-ion battery wireless charging control circuit, it is characterized in that, comprise: wireless transmitter module and wireless receiving module, described wireless transmitter module comprises electric power management circuit, power amplification circuit, frequency oscillation circuit and front end coupling coil, the input of described electric power management circuit connects power supply, the output of described electric power management circuit connects power amplification circuit and frequency oscillation circuit, the output of described frequency oscillation circuit connects power amplification circuit, the output of described power amplification circuit connects front end coupling coil, described wireless receiving module comprises secondary coupling coil, regulator rectifier circuit, charging control circuit, constant-current charging circuit and charging indication, described secondary coupling coil is connected with described regulator rectifier circuit, the output of described regulator rectifier circuit connects charging control circuit and constant-current charging circuit, the output of described charging control circuit connects constant-current charging circuit, the output of described charging control circuit connects charging indication.
2. a kind of cellular li-ion battery wireless charging control circuit according to claim 1, it is characterized in that, described frequency oscillation circuit adopts NE555 chip as the signal generator of frequency of oscillation, and described power amplification circuit adopts LC shunt-resonant circuit and switching tube.
3. a kind of cellular li-ion battery wireless charging control circuit according to claim 1, is characterized in that, the enamelled wire that described front end coupling coil and secondary coupling coil are diameter 0.8mm is close around 20 circles.
4. a kind of cellular li-ion battery wireless charging control circuit according to claim 1, is characterized in that, described constant-current charging circuit also arranges current detector, and the output of described current detector connects charging control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520430762.5U CN204794180U (en) | 2015-06-19 | 2015-06-19 | Control circuit that charges that cell -phone lithium cell is wireless |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520430762.5U CN204794180U (en) | 2015-06-19 | 2015-06-19 | Control circuit that charges that cell -phone lithium cell is wireless |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204794180U true CN204794180U (en) | 2015-11-18 |
Family
ID=54534163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520430762.5U Expired - Fee Related CN204794180U (en) | 2015-06-19 | 2015-06-19 | Control circuit that charges that cell -phone lithium cell is wireless |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204794180U (en) |
-
2015
- 2015-06-19 CN CN201520430762.5U patent/CN204794180U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20160619 |