CN207082912U - A kind of magnetic induction mobile phone wireless charging emitter - Google Patents
A kind of magnetic induction mobile phone wireless charging emitter Download PDFInfo
- Publication number
- CN207082912U CN207082912U CN201720749398.8U CN201720749398U CN207082912U CN 207082912 U CN207082912 U CN 207082912U CN 201720749398 U CN201720749398 U CN 201720749398U CN 207082912 U CN207082912 U CN 207082912U
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- Prior art keywords
- voltage
- phase
- mobile phone
- wireless charging
- power
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- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
It the utility model is related to a kind of magnetic induction mobile phone wireless charging emitter, including AC power, the AC power is changed into high frequency electric source after high-frequency converter, then by capacitor resonant circuit after, electric energy is switched into magnetic field energy by primary induction coil, and wireless charging device is charged；It is simple in construction, and matching charging can be carried out with possessing the mobile phone of wireless power function, it is easy to use.The PLL phase-locked loop modules of setting, transmitter module can be allowed to be operated in power factor close under 1 or the resonant condition equal to 1 so that system obtain higher energy transmission efficiency.
Description
Technical field
Wireless charging device field is the utility model is related to, specifically a kind of magnetic induction mobile phone wireless charging emitter.
Background technology
There is the situation increased rapidly in the mobile digital product such as mobile phone, tablet personal computer, camera market in recent years, adjoint
The variation of portable set function, the increase of power consumption, consumer is also improving to the frequency that portable set charges.But
It is that existing mobile phone charging is more to carry out by wired mode, and different manufacturers charging head standard disunity, charger for mobile phone can not lead to
With being made troubles to user.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of magnetic induction mobile phone wireless charging emitter, with solution
Certainly defect present in prior art.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：
A kind of magnetic induction mobile phone wireless charging emitter, including AC power, the AC power pass through high frequency conversion
Be changed into high frequency electric source after device, then by capacitor resonant circuit after, electric energy is switched into magnetic field energy by primary induction coil, and to nothing
Micro USB electric installation is charged；The primary induction coil is also associated with voltage signal sample circuit, primary for monitoring in real time
The voltage of induction coil, when occurring over-pressed, electric current is adjusted by current regulating circuit, so as to adjust primary induction coil
Voltage；The capacitor resonant circuit is connected with voltage-phase monitoring modular, and it inputs the comparison voltage of collection to PLL phaselocked loops
Module, the phase difference of comparison voltage and reference voltage is exported by the PLL phase-locked loop modules, and then control collection voltages and ginseng
The phase difference for examining voltage is locked in 90 °.
Further, the PLL phaselocked loops include comparison voltage and reference voltage input port, comparison voltage and reference voltage
After phase comparator after the caused low-pass filtered device processing of voltage difference, d. c. voltage signal is changed into, the DC voltage
Signal adjusts the output signal frequency of voltage controlled oscillator so that the phase difference of comparison voltage and reference voltage is stable at 90 °.
The beneficial effects of the utility model are：It is simple in construction, and can be with possessing the progress of the mobile phone of wireless power function
It is easy to use with charging.The PLL phase-locked loop modules of setting, can allow transmitter module to be operated in power factor close to 1 or be equal to
Under 1 resonant condition so that system obtain higher energy transmission efficiency.
Brief description of the drawings
Fig. 1 is the utility model transmitter module theory diagram；
Fig. 2 is the utility model PLL phase-locked loop control circuit theory diagrams；
Fig. 3 is the utility model voltage detection protection circuit figure
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
As shown in figure 1, a kind of magnetic induction mobile phone wireless charging emitter, including AC power, the AC power warp
Be changed into high frequency electric source after crossing high-frequency converter, then by capacitor resonant circuit after, electric energy is switched into magnetic by primary induction coil
Field energy, and wireless charging device is charged；The primary induction coil is also associated with voltage signal sample circuit, for reality
When monitor primary induction coil voltage, when occur it is over-pressed when, electric current is adjusted by current regulating circuit, so as to adjust primary
The voltage of induction coil；The capacitor resonant circuit is connected with voltage-phase monitoring modular, and it inputs the comparison voltage of collection
To PLL phase-locked loop modules, the phase difference of comparison voltage and reference voltage is exported by the PLL phase-locked loop modules, and then controls
The phase difference of collection voltages and reference voltage is locked in 90 °.
Further, the PLL phaselocked loops include comparison voltage and reference voltage input port, comparison voltage and reference voltage
After phase comparator after the caused low-pass filtered device processing of voltage difference, d. c. voltage signal is changed into, the DC voltage
Signal adjusts the output signal frequency of voltage controlled oscillator so that the phase difference of comparison voltage and reference voltage is stable at 90 °.
Referring specifically to accompanying drawing 2, in order to allow transmitter module to be operated in power factor close under 1 or the resonant condition equal to 1,
So that system obtain higher energy transmission efficiency, by phase-locked loop control technology (PLL), realize electrical energy transformer pair
Frequency change is tracked caused by load change, will be detailed below the operating principle of circuit, as shown in Fig. 2 lock
Phase chip can adjust the square-wave signal frequency of voltage controlled oscillator output end, make the comparison signal and reference signal phase difference of input
It is maintained at 0 ° or 90 °.
Fig. 3 show voltage detection protection circuit figure, when receiving coil is away from transmitting coil, the reflection resistance between them
Anti- to disappear, if the frequency of now inverter work is close from resonant frequency, the voltage gain on transmitting coil can become very
Greatly, it is therefore desirable to which this voltage gain signal is fed back to current regulating circuit by overvoltage crowbar in time.Now Uv-coil
More than Uc+, comparator output terminal V-CH is changed into low level from high level.Current regulating circuit is started working, and is reduced electric current, is prevented
There is overpressure situation in transmitter module.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (2)
- The emitter 1. a kind of magnetic induction mobile phone wireless charges, it is characterised in that：Including AC power, the AC power is passed through Be changed into high frequency electric source after high-frequency converter, then by capacitor resonant circuit after, electric energy is switched into magnetic field by primary induction coil Can, and wireless charging device is charged；The primary induction coil is also associated with voltage signal sample circuit, for real-time The voltage of primary induction coil is monitored, when occurring over-pressed, electric current is adjusted by current regulating circuit, so as to adjust primary sense Answer the voltage of coil；The capacitor resonant circuit is connected with voltage-phase monitoring modular, its by the comparison voltage of collection input to PLL phase-locked loop modules, the phase difference of comparison voltage and reference voltage is exported by the PLL phase-locked loop modules, and then control and adopt The phase difference of collecting voltage and reference voltage is locked in 90 °.
- A kind of 2. magnetic induction mobile phone wireless charging emitter according to claim 1, it is characterised in that：The PLL locks Phase ring includes comparison voltage and reference voltage input port, comparison voltage and the reference voltage caused voltage after phase comparator After the low-pass filtered device processing of difference, d. c. voltage signal is changed into, the output letter of d. c. voltage signal adjustment voltage controlled oscillator Number frequency so that the phase difference of comparison voltage and reference voltage is stable at 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720749398.8U CN207082912U (en) | 2017-06-26 | 2017-06-26 | A kind of magnetic induction mobile phone wireless charging emitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720749398.8U CN207082912U (en) | 2017-06-26 | 2017-06-26 | A kind of magnetic induction mobile phone wireless charging emitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207082912U true CN207082912U (en) | 2018-03-09 |
Family
ID=61426590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720749398.8U Expired - Fee Related CN207082912U (en) | 2017-06-26 | 2017-06-26 | A kind of magnetic induction mobile phone wireless charging emitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207082912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149786A (en) * | 2017-06-26 | 2019-01-04 | 北京中诺电力工程有限公司 | A kind of magnetic induction mobile phone wireless charging emitter |
-
2017
- 2017-06-26 CN CN201720749398.8U patent/CN207082912U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149786A (en) * | 2017-06-26 | 2019-01-04 | 北京中诺电力工程有限公司 | A kind of magnetic induction mobile phone wireless charging emitter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180309 Termination date: 20200626 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |