CN102638111A - Wireless charging transmitting system - Google Patents
Wireless charging transmitting system Download PDFInfo
- Publication number
- CN102638111A CN102638111A CN2012100905137A CN201210090513A CN102638111A CN 102638111 A CN102638111 A CN 102638111A CN 2012100905137 A CN2012100905137 A CN 2012100905137A CN 201210090513 A CN201210090513 A CN 201210090513A CN 102638111 A CN102638111 A CN 102638111A
- Authority
- CN
- China
- Prior art keywords
- wireless charging
- emission system
- cpu
- unit
- llc
- 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.)
- Pending
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a wireless charging transmitting system which is characterized in that an LLC (Logic Link Control) electromagnetic resonance unit and an indicating unit are controlled respectively by a central processing unit; a load detection unit respectively accesses the central processing unit and the LLC electromagnetic resonance unit; and a direct current power supply unit provides direct current voltage for the central processing unit. Due to adoption of the circuit structure, the transmitting system has the following advantages that 1, the automatic powered-on and powered-off of the transmitting system is realized while ensuring the transmission efficiency of the whole transmitting system; 2, the fault rate of devices is reduced, production is lowered and costs are maintained; and 3, the structure is simple, and the system is suitable for transforming the existing products.
Description
Technical field
The present invention relates to the wireless charging field, particularly a kind of wireless charging emission system.
Background technology
Wireless charging is to realize electronic product is charged through the electromagentic resonance principle; Whole wireless charging system has comprised two parts; One is the emission system that connects power supply; Receiving system on another electronic product, as long as in certain scope, power supply can moment spontaneous emission system pass on the corresponding receiving system.
In the existing wireless charging process, wireless transmitting system is in the process of power transfer, and emission system is transmitted all the time, since in running order always, cause components and parts to damage through regular meeting, cause the entire circuit blackboard newspaper useless, thereby caused unnecessary loss.
The spoilage that how when guaranteeing whole emission system efficiency of transmission, to reduce components and parts is the problem that prior art need solve.
Summary of the invention
Technical problem to be solved by this invention is a kind of wireless charging emission system to be provided, to reach the purpose that when guaranteeing whole emission system efficiency of transmission, reduces the components and parts spoilage.
For solving the problems of the technologies described above, technical scheme of the present invention is that a kind of wireless charging emission system is characterized in that: described emission system is that CPU is controlled LLC electromagentic resonance unit, indicating member respectively; The load detecting unit inserts CPU, LLC electromagentic resonance unit respectively; Dc power supply unit is that CPU provides direct voltage; When the load detecting unit detect receiving system near after; Feedback signal is passed to central processing unit controls open LLC electromagentic resonance unit, thereby when guaranteeing efficiency of transmission, realized the automatic shutter of emission system.
The chip of described CPU is provided with the RST reseting terminal and is connected to RC and replies a circuit by cable.
The chip model of described CPU is AT89C2051.
Be provided with filter capacitor C9 between the VCC terminal of the chip of described CPU and earth terminal GND, prevent to import power supply and have spike.
Described dc power supply unit is that three-terminal voltage-stabilizing pipe U1 input and output are provided with π type filter circuit; Wherein input π type filter circuit is by the filter capacitor C1 and the C2 of parallel connection, and the anti-reverse diode D1 and the adjustable resistance R1 that are arranged between filter capacitor C1 and the C2 form; Output π type filter circuit is made up of the filter capacitor C3 and the C4 of parallel connection.
The model of described three-terminal voltage-stabilizing pipe U1 is MC7805CT.
Described LLC electromagentic resonance unit is concussion inductance L 1, the L2 of parallel connection; Be arranged at the capacitor C 5 between concussion inductance L 1 and the L2; And triode Q3, concussion inductance L 1, L2 and capacitor C 5 are arranged at the collector electrode of triode Q3, and second amplifying circuit connects the base stage of triode Q3; The emitter of triode Q3 inserts the load detecting unit after being connected to sample circuit behind parallel diode D2 and the D3, thus achieve a butt joint the receipts system near detection.
A kind of wireless charging emission system, owing to adopt the foregoing circuit structure, this emission system has the following advantages: the automatic shutter of 1, when guaranteeing whole emission system efficiency of transmission, having realized emission system; 2, reduce the failure rate of components and parts, reduced the cost of producing and keeping in repair; 3, simple in structure, be fit to existing product is transformed.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation;
Fig. 1 is the theory diagram of a kind of wireless charging emission system of the present invention;
Fig. 2 is the circuit diagram of a kind of wireless charging emission system of the present invention CPU;
Fig. 3 is the circuit diagram of a kind of wireless charging emission system of the present invention dc power supply unit;
Fig. 4 is the circuit diagram of a kind of wireless charging emission system of the present invention LLC electromagentic resonance unit;
In Fig. 1-4,1, CPU; 2, LLC electromagentic resonance unit; 3, load detecting unit; 4, indicating member; 5, dc power supply unit; 6, receiving system.
Embodiment
As shown in Figure 1, the present invention controls LLC electromagentic resonance unit 2, indicating member 4 respectively for CPU 1; Load detecting unit 3 inserts CPU 1, LLC electromagentic resonance unit 2 respectively; Dc power supply unit 5 provides direct voltage for CPU 1; When load detecting unit 3 detect receiving system 6 near after; Feedback signal is passed to CPU 1 control open LLC electromagentic resonance unit 2, thereby when guaranteeing efficiency of transmission, realized the automatic shutter of emission system.
So the present invention includes CPU 1; The dc power supply unit 5 of power supply is provided for CPU 1; LLC electromagentic resonance unit 2 by CPU 1 control is used to detect the load detecting unit 3 of load condition, and the indicating member 4 that is used to detect charged state.
Shown in Fig. 2-4, CPU 1 is for being provided with the CPU process chip of a plurality of terminals, and model is AT89C2051; This chip is provided with reseting terminal RST, power supply terminal VCC, indication terminal P1.7 and P1.6; Input terminal P1.5; Lead-out terminal P1.4, concussion terminal XTAL1 and XTAL2, and earth terminal GND.Reseting terminal RST is connected to RC and replies a circuit by cable; Power supply terminal VCC connects dc power supply unit 5; Dc power supply unit 5 comprises three-terminal voltage-stabilizing pipe U1; Model is MC7805CT; Three-terminal voltage-stabilizing pipe U1 input and output are provided with π type filter circuit, and wherein input π type filter circuit is by the filter capacitor C1 and the C2 of parallel connection, and the anti-reverse diode D1 and the adjustable resistance R1 that are arranged between filter capacitor C1 and the C2 form; Output π type filter circuit is made up of the filter capacitor C3 and the C4 of parallel connection, and for the CPU process chip provides stable power, in the power supply circuits, DC24 produces the DC5V supply voltage from the input of I2 point from the VCC point to the input power supply behind double-smoothing.This part has mainly adopted the IC of ripe three-terminal voltage-stabilizing 7805.For the power supply that prevents to import also has spike, influence CPU process chip operate as normal, between VCC terminal and earth terminal GND, also be provided with filter capacitor C9.Concussion terminal XTAL1 and XTAL2 are connected to parallelly connected quartz crystal clock loop.In order to show charged state intuitively, on indication terminal P1.7 and P1.6, be respectively arranged with indicator light LED1 and LED2.
Input terminal P1.5 is that load feedback detects, open wireless energy emission when detection has load, on the contrary close the wireless energy emission; Input terminal P1.5 is connected to the firsts and seconds amplifying circuit; And through the LLC electromagentic resonance unit 2 after the secondary amplification, this LLC electromagentic resonance unit 2 comprises concussion inductance L 1, the L2 of parallel connection, is arranged at the capacitor C 5 between concussion inductance L 1 and the L2; And triode Q3; Concussion inductance L 1, L2 and capacitor C 5 are arranged at the collector electrode of triode Q3, and second amplifying circuit connects the base stage of triode Q3, and the emitter of triode Q3 is connected to sample circuit behind parallel diode D2 and D3.Sample circuit meets CPU lead-out terminal P1.4, and the control wireless energy is launched and closed, and this sample circuit is made up of π type filter circuit and sampling resistor R17.
Combine accompanying drawing that the present invention has been carried out exemplary description above; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as the various improvement of having adopted technical scheme of the present invention to carry out, or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (7)
1. wireless charging emission system, it is characterized in that: described emission system is that CPU (1) is controlled LLC electromagentic resonance unit (2), indicating member (4) respectively; Load detecting unit (3) inserts CPU (1), LLC electromagentic resonance unit (2) respectively; Dc power supply unit (5) provides direct voltage for CPU (1).
2. a kind of wireless charging emission system according to claim 1 is characterized in that: the chip of described CPU (1) is provided with the RST reseting terminal and is connected to RC and replies a circuit by cable.
3. a kind of wireless charging emission system according to claim 1 and 2 is characterized in that: the chip model of described CPU (1) is AT89C2051.
4. a kind of wireless charging emission system according to claim 1 and 2 is characterized in that: be provided with filter capacitor (C9) between the VCC terminal of the chip of described CPU (1) and earth terminal GND.
5. a kind of wireless charging emission system according to claim 1; It is characterized in that: described dc power supply unit (5) is provided with π type filter circuit for three-terminal voltage-stabilizing pipe (U1) input and output; Wherein input π type filter circuit by the filter capacitor (C1) of parallel connection and (C2), and the anti-reverse diode (D1) and the adjustable resistance (R1) that are arranged between the filter capacitor (C1, C2) are formed; Output π type filter circuit is made up of the filter capacitor (C3, C4) of parallel connection.
6. according to claim 1 or 5 described a kind of wireless charging emission systems, it is characterized in that: the model of described three-terminal voltage-stabilizing pipe (U1) is MC7805CT.
7. a kind of wireless charging emission system according to claim 1; It is characterized in that: described LLC electromagentic resonance unit (2) is the concussion inductance (L1, L2) of parallel connection; Be arranged at the electric capacity (C5) between the concussion inductance (L1, L2); And triode (Q3); Concussion inductance (L1, L2) and electric capacity (C5) are arranged at the collector electrode of triode (Q3), and second amplifying circuit connects the base stage of triode (Q3), and the emitter of triode (Q3) inserts load detecting unit (3) after being connected to sample circuit behind the parallel diode (D2, D3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100905137A CN102638111A (en) | 2012-03-30 | 2012-03-30 | Wireless charging transmitting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100905137A CN102638111A (en) | 2012-03-30 | 2012-03-30 | Wireless charging transmitting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102638111A true CN102638111A (en) | 2012-08-15 |
Family
ID=46622403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100905137A Pending CN102638111A (en) | 2012-03-30 | 2012-03-30 | Wireless charging transmitting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102638111A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281061A (en) * | 2013-05-31 | 2013-09-04 | 成都锐奕信息技术有限公司 | Power switch control circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003259642A (en) * | 2002-02-28 | 2003-09-12 | Yazaki Corp | Contactless power supply |
| CN201508205U (en) * | 2009-02-27 | 2010-06-16 | 曼瑞德自控系统（乐清）有限公司 | LC damped oscillation volume sampler |
| CN201510739U (en) * | 2009-07-16 | 2010-06-23 | 深圳市三子科技有限公司 | Wirelessly Chargeable Gaming Device Combo |
| CN201937525U (en) * | 2010-12-10 | 2011-08-17 | 丹东华通测控有限公司 | Communication preset batch starting/stopping control device of motor |
| CN202068222U (en) * | 2010-07-01 | 2011-12-07 | 苏州宝时得电动工具有限公司 | Wireless charging system |
-
2012
- 2012-03-30 CN CN2012100905137A patent/CN102638111A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003259642A (en) * | 2002-02-28 | 2003-09-12 | Yazaki Corp | Contactless power supply |
| CN201508205U (en) * | 2009-02-27 | 2010-06-16 | 曼瑞德自控系统（乐清）有限公司 | LC damped oscillation volume sampler |
| CN201510739U (en) * | 2009-07-16 | 2010-06-23 | 深圳市三子科技有限公司 | Wirelessly Chargeable Gaming Device Combo |
| CN202068222U (en) * | 2010-07-01 | 2011-12-07 | 苏州宝时得电动工具有限公司 | Wireless charging system |
| CN201937525U (en) * | 2010-12-10 | 2011-08-17 | 丹东华通测控有限公司 | Communication preset batch starting/stopping control device of motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281061A (en) * | 2013-05-31 | 2013-09-04 | 成都锐奕信息技术有限公司 | Power switch control circuit |
| CN103281061B (en) * | 2013-05-31 | 2015-09-09 | 成都锐奕信息技术有限公司 | Power on-off control circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103227506A (en) | Triggering and monitoring unit of converter valve thyristor | |
| CN102005798A (en) | Solar charging circuit | |
| CN102684652A (en) | Synchronous pulse control circuit for preventing faults of microprogrammed control unit (MCU) or driving integrated circuit (IC) | |
| CN102857105A (en) | Switch power source circuit and corresponding switch power source device | |
| CN201975637U (en) | Household power failure alarming and electric appliance protecting power supply socket | |
| CN205593673U (en) | Compound sensor system based on electric field induction formula | |
| CN103105214A (en) | Detecting device of coal bunker material level | |
| CN204068678U (en) | A kind of Switching Power Supply output over-voltage protection and thermal-shutdown circuit | |
| CN104810936A (en) | Wireless power supply device used for pipeline internal load | |
| CN103337841A (en) | Bidirectional current limiter based on bidirectional BUCK converter and bidirectional current limiting method thereof | |
| CN102751142A (en) | Power supply control circuit for relay driving module | |
| CN102638111A (en) | Wireless charging transmitting system | |
| CN202678921U (en) | Overcurrent fault alarm device used on high-voltage transmission lines | |
| CN105576603A (en) | Double-input leakage protector | |
| CN107328488A (en) | Combined type trans system based on electric field induction | |
| CN105429435A (en) | Detection method, signal isolation transmission method and detection circuit, and signal isolation transmission circuit | |
| CN201886591U (en) | Multifunctional protecting device for refrigerator | |
| CN203251084U (en) | Bi-directional current limiter based on bi-directional BUCK converter | |
| CN103888070A (en) | Remote monitor type photovoltaic connecting box based on voltage detection and single-wire communication protocol | |
| CN203324355U (en) | Microwave-system diverse self-checking circuit | |
| CN202679330U (en) | Synchronous pulse control circuit preventing fault of MCU and driver IC | |
| CN205039794U (en) | Solid state relay with energy recuperation utilization function | |
| CN205981281U (en) | Underground pipe network monitoring system | |
| CN203675083U (en) | Coupling circuit used for pulse generator and power source of to-be-tested device | |
| CN202772863U (en) | High-power photoelectric control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120815 |