CN204068375U - Wireless charger circuit - Google Patents
Wireless charger circuit Download PDFInfo
- Publication number
- CN204068375U CN204068375U CN201420490314.XU CN201420490314U CN204068375U CN 204068375 U CN204068375 U CN 204068375U CN 201420490314 U CN201420490314 U CN 201420490314U CN 204068375 U CN204068375 U CN 204068375U
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- China
- Prior art keywords
- circuit
- connects
- coil
- wireless charger
- microprocessor
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- 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 - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a kind of wireless charger circuit, an IO port of microprocessor connects buffer circuit input, the output of buffer circuit connects drive circuit input, drive circuit output connecting valve circuit, switching circuit connecting coil L1, coil L1 one end is through diode D1, resistance connects feedback circuit, the node that coil L1 is connected with diode D1 connects a filter circuit, resistance connects feedback circuit, feedback circuit output connects microprocessor HPF end, wireless charger circuit can work under complex electromagnetic environment, possesses higher anti-interference function, effectively can remove high frequency spurs, circuit stability, its structure is simple, stable performance, the advantage that life-span is long, wire/wireless two kinds of charge modes are realized for coordinating induction type electric current and USB bimodulus charging control circuit.
Description
Technical field
The utility model relates to charger mobile phone, particularly a kind of wireless charger circuit, realizes wire/wireless two kinds of charge modes for coordinating induction type electric current and USB bimodulus charging control circuit.
Background technology
The wired charge mode of traditional mobile phone in use, needs plug charging plug repeatedly.Daily life, work, in leisure, the power consumption of smart mobile phone is relatively large, needs to supplement electric power at any time, plays phone in charging, office online, and amusement and recreation have potential safety hazard again;
Increasing gradually along with modern society has two mobile phone personages, can only be the actual demand that pattern that a mobile phone carries out charging progressively cannot meet current user. in view of the deficiency that prior art exists.
The common drawback of wired or wireless charger is in the past that charger 1 can only fill 1 mobile phone.
Induction type electric current and USB bimodulus charging control circuit are novel USB charging control circuits, it utilizes the power supply adaptor of limited output current (1.8A), when ensureing that wireless charging electric energy normally uses, utilize unnecessary available current, the technology charged the phone by wired USB interface and charging control circuit.
Its work characteristics under complex electromagnetic environment is not considered in wireless charger circuit structure design in the past, wireless charger circuit is in the past usually without high-frequency filter circuit, its anti-interference function is weak, and effectively can not remove high frequency spurs, thus circuit stability is poor.
Therefore it be not suitable for induction type electric current and USB bimodulus charging control circuit with the use of, so need to design a kind of wireless charger matched with it, this wireless charger circuit structure must work under complex electromagnetic environment, possesses higher anti-interference function, effectively can remove high frequency spurs, circuit stability.This circuit design just becomes the problem that technical staff will study and solve.
Summary of the invention
The purpose of this utility model is exactly the supporting needs for induction type electric current and USB bimodulus charging control circuit, a kind of wireless charger circuit structure is provided, this wireless charger circuit structure can work under complex electromagnetic environment, possesses higher anti-interference function, effectively can remove high frequency spurs, circuit stability, realizes wire/wireless two kinds of charge modes for coordinating induction type electric current and USB bimodulus charging control circuit.
The utility model is realized by such technical scheme: a kind of wireless charger circuit, comprise microprocessor, it is characterized in that, an IO port of microprocessor connects buffer circuit input, the output of buffer circuit connects drive circuit input, drive circuit output connecting valve circuit, switching circuit connecting coil L1, coil L1 one end connects feedback circuit through diode D1, resistance, the node that coil L1 is connected with diode D1 connects filter circuit, a resistance and connects feedback circuit, and feedback circuit output connects microprocessor HPF end.
Microprocessor adopts IDTP9035A chip;
Buffer circuit is connected to form by an a D type CMOS trigger NC7SZ74 and two schmidt trigger buffer SN74LVC1G; Drive circuit is made up of two IDTP9090 chips and Resistor-Capacitor Unit; Switching circuit is made up of four MOSFET chip DMG7430LFG, and two IDTP9090 chips in drive circuit together form a full bridge driving circuit.
Ground connection after serial capacitance C30, resistance R23 after filtered electrical routing capacitance C31, C32, C33, C34 parallel connection that the node that coil L1 is connected with diode D1 connects.
The beneficial effects of the utility model are: by rational circuit structure, and wireless charger circuit structure must work under complex electromagnetic environment, possesses higher anti-interference function, effectively can remove, circuit stability to high frequency spurs.Its structure is simple, stable performance, the advantage that the life-span is long, realizes wire/wireless two kinds of charge modes for coordinating induction type electric current and USB bimodulus charging control circuit.
Accompanying drawing explanation
Fig. 1, wireless charger circuit block diagram
Fig. 2, buffer circuit partial schematic diagram;
Fig. 3, driving circuit section schematic diagram;
Fig. 4, switching circuit portion schematic diagram;
Fig. 5, coil and filter circuit partial schematic diagram.
Embodiment
Understand the utility model in order to clearer, describe the utility model in detail in conjunction with the accompanying drawings and embodiments:
As shown in Figures 1 to 5, a kind of wireless charger circuit, comprise microprocessor, an IO port of microprocessor connects buffer circuit input, and the output of buffer circuit connects drive circuit input, drive circuit output connecting valve circuit, switching circuit connecting coil L1, coil L1 one end connects feedback circuit through diode D1, resistance, and the node that coil L1 is connected with diode D1 connects filter circuit, a resistance and connects feedback circuit, and feedback circuit output connects microprocessor HPF end.
Microprocessor adopts IDTP9035A chip;
Buffer circuit is connected to form by an a D type CMOS trigger NC7SZ74 and two schmidt trigger buffer SN74LVC1G; Drive circuit is made up of two IDTP9090 chips and Resistor-Capacitor Unit; Switching circuit is made up of four MOSFET chip DMG7430LFG, and two IDTP9090 chips in drive circuit together form a full bridge driving circuit.
Ground connection after serial capacitance C30, resistance R23 after filtered electrical routing capacitance C31, C32, C33, C34 parallel connection that the node that coil L1 is connected with diode D1 connects.
Microprocessor IDTP9035A chip, according to its internal processes finished writing in advance and charge condition, by internal calculation, removes the drive circuit controlling charging.
Buffer circuit module is for eliminating the interference of input.
Driver module is made up of two IDTP9090 chips, goes switching sequence and the time of four switch chips in control switch circuit.
Switching circuit module is made up of four MOSFET chip DMG7430LFG, and two IDTP9090 chips together form a full bridge driving circuit, and control drain current by grid voltage, its driving power is little,
Switching speed is fast, is controlled by drive circuit module, makes these four switch chips switch repeatedly in order, produces induced potential at inductance coil L1 two ends;
Feedback circuit module responds to the signal of coming to receiving terminal to feed back.
When passing through direct current in inductance, only presenting the fixing magnetic line of force around it, not changing in time,
When passing through alternating current in coil, will present the magnetic line of force of time to time change around it, the magnetic line of force of change can produce induced potential at coil two ends, and this induced potential is equivalent to one " new power ".
According to the above description, scheme of the present utility model can be realized in conjunction with art technology.
Claims (3)
1. a wireless charger circuit, comprise microprocessor, it is characterized in that, an IO port of microprocessor connects buffer circuit input, and the output of buffer circuit connects drive circuit input, drive circuit output connecting valve circuit, switching circuit connecting coil L1, coil L1 one end connects feedback circuit through diode D1, resistance, and the node that coil L1 is connected with diode D1 connects filter circuit, a resistance and connects feedback circuit, and feedback circuit output connects microprocessor HPF end.
2. wireless charger circuit as claimed in claim 1, is characterized in that, microprocessor adopts IDTP9035A chip;
Buffer circuit is connected to form by an a D type CMOS trigger NC7SZ74 and two schmidt trigger buffer SN74LVC1G; Drive circuit is made up of two IDTP9090 chips and Resistor-Capacitor Unit; Switching circuit is made up of four MOSFET chip DMG7430LFG, and two IDTP9090 chips in drive circuit together form a full bridge driving circuit.
3. wireless charger circuit as claimed in claim 1, is characterized in that, ground connection after serial capacitance C30, resistance R23 after filtered electrical routing capacitance C31, C32, C33, C34 parallel connection that the node that coil L1 is connected with diode D1 connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420490314.XU CN204068375U (en) | 2014-08-28 | 2014-08-28 | Wireless charger circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420490314.XU CN204068375U (en) | 2014-08-28 | 2014-08-28 | Wireless charger circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204068375U true CN204068375U (en) | 2014-12-31 |
Family
ID=52209821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420490314.XU Expired - Fee Related CN204068375U (en) | 2014-08-28 | 2014-08-28 | Wireless charger circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204068375U (en) |
-
2014
- 2014-08-28 CN CN201420490314.XU patent/CN204068375U/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 |
Granted publication date: 20141231 Termination date: 20190828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |