CN109004769A - The wireless charging system and method for multi-coil - Google Patents
The wireless charging system and method for multi-coil Download PDFInfo
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- CN109004769A CN109004769A CN201811061654.XA CN201811061654A CN109004769A CN 109004769 A CN109004769 A CN 109004769A CN 201811061654 A CN201811061654 A CN 201811061654A CN 109004769 A CN109004769 A CN 109004769A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of wireless charging system of multi-coil, including power input port, voltage regulator circuit, microprocessor, first coil drive module and the second coil drive module.Voltage regulator circuit is electrically connected power input port.Voltage regulator circuit carries out pressure stabilizing to the power supply signal that power input port inputs.Microprocessor and power input port is electrically connected in first and second coil drive module.The first voltage level of power supply signal is depressurized to second voltage level by first coil drive module.The first voltage level of power supply signal is depressurized to tertiary voltage level by the second coil drive module.First coil drive module is interfered for first coil drive module and the second coil drive module to be isolated by the string code that power end to ground terminal generates independently of the second coil drive module.Wireless charging system provided by the invention effectively prevent first coil drive module and the second coil drive intermodule that string code interference occurs.
Description
Technical field
The present invention relates to electronic circuit fields, in particular to the wireless charging system and method for a kind of multi-coil.
Background technique
In general, a wireless charging transmitter can only charge to a wireless charging receiver.The prior art
In, it is to utilize multiple circuit moulds in parallel when a wireless charging transmitter charges to multiple wireless charging receivers
The shortcomings that block, this mode, is that signal interferes with each other, and needs to be laid with more power inputs and adapter, makes in cost
At great waste, and excessive harness is needed, caused inconvenient to use.
Summary of the invention
In view of the above problems, the present invention provides a kind of wireless charging systems of multi-coil, can effectively solve the problem that signal phase
Mutually interference.
To achieve the goals above, the present invention adopts the following technical scheme that:
The present invention provides a kind of wireless charging system of multi-coil, the wireless charging system includes:
Power input port；
Voltage regulator circuit, is electrically connected the power input port, and the voltage regulator circuit inputs the power input port
Power supply signal carry out pressure stabilizing；
Microprocessor, is electrically connected the voltage regulator circuit, and the microprocessor receives the pressure stabilizing of the voltage regulator circuit transmission
Power supply signal afterwards；
First coil drive module is electrically connected the microprocessor and the power input port, the first coil
The first voltage level of the power supply signal is depressurized to second voltage level by drive module；
Second coil drive module is electrically connected the microprocessor and the power input port, second coil
The first voltage level of the power supply signal is depressurized to tertiary voltage level by drive module；
Wherein, the first coil drive module is independently of the second coil drive module, for being isolated described first
Coil drive module and the second coil drive module are interfered by the string code that power end to ground terminal generates.
As an alternative embodiment, the first coil drive module is used to receive the transmission of the first running gear
First data information, the first coil drive module carry out information decoding process, micro- place to first data information
Reason device decides whether to generate the first pulse bandwidth demodulated signal according to the first data information after decoding process, when the micro process
Device by the first data information after decoding process to recognize first running gear include charge coil when, the first coil
Drive module charges to first running gear according to the first pulse bandwidth demodulated signal.
As an alternative embodiment, the second coil drive module is used to receive the transmission of the second running gear
Second data information, the second coil drive module carry out information decoding process, micro- place to second data information
Reason device decides whether to generate the second pulse bandwidth demodulated signal according to the second data information after decoding process, when the micro process
Device by the second data information after decoding process to recognize second running gear include charge coil when, second coil
Drive module charges to second running gear according to the second pulse bandwidth demodulated signal.
As an alternative embodiment, the first coil drive module includes:
First input voltage detection circuit is electrically connected the power input port and the microprocessor；
First reduction voltage circuit is electrically connected first input voltage detection circuit, the first input voltage measurement electricity
Road is used to detect the input voltage of first reduction voltage circuit, and first reduction voltage circuit is used for the first of the power supply signal
Voltage quasi position is depressurized to second voltage level and generates the first electric power signal；
First output voltage detecting circuit, electric connection first reduction voltage circuit and the microprocessor, described first
Output voltage detecting circuit is used to detect the output voltage of first reduction voltage circuit.
As an alternative embodiment, the first coil drive module further include:
First resonance circuit, for receiving the first data information of the first running gear transmission, wherein described first
Resonance circuit includes one group of resonant capacitance and eight resonant inductances, when the microcontroller is gone to gate a wherein resonant inductance
When with one group of resonant capacitance, first resonance circuit sends the first wireless charging signal to first running gear；
First MOS driver, is electrically connected the microprocessor, and the first MOS driver receives the microprocessor
First pulse bandwidth demodulated signal of transmission；
First regulating circuit is electrically connected first reduction voltage circuit and the microprocessor, first regulating circuit
Receive first electric power signal of the first reduction voltage circuit transmission and the first Electric control letter of microprocessor transmission
Number, first regulating circuit, which generates the first pressure regulation according to first electric power signal and first power controlling signal, to be believed
Number；
First metal-oxide-semiconductor is electrically connected the first MOS driver, first regulating circuit and first resonance electricity
Road, first metal-oxide-semiconductor receive first driving signal or first regulating circuit that the first MOS driver transmits
The first pressure regulation signal of transmission, first metal-oxide-semiconductor are produced according to first driving signal or the first pressure regulation signal
Raw first amplified signal is simultaneously sent to first resonance circuit；
First voltage detection circuit is electrically connected first metal-oxide-semiconductor and the microcontroller, first voltage detection circuit
First voltage detection information is generated according to the voltage of first resonance circuit；
First current detection circuit is electrically connected first metal-oxide-semiconductor and the microcontroller, the first current detection circuit
The first current detecting information is generated according to the electric current of first resonance circuit；
First information decoding circuit is electrically connected first metal-oxide-semiconductor and the microprocessor, the first information decoding
Circuit receives first data information of the first metal-oxide-semiconductor transmission and generates the first decoded information, the microprocessor root
Judge whether the first running gear includes charge coil according to first decoded signal, when the microprocessor is according to described first
When decoded signal judges that the first running gear includes charge coil, the microprocessor passes through letter according to first decoded information
It ceases decoding process and generates the first pulse bandwidth demodulated signal；
Wherein, the microprocessor according to the first decoded signal to judge the first running gear not include charge coil when, institute
It states microprocessor and does not generate the first pulse bandwidth demodulated signal；
Wherein, when the first coil drive module is hopping pattern, the microcontroller is according to first pulse
The frequency of bandwidth demodulated signal generates first amplified signal to modulate first metal-oxide-semiconductor, and first regulating circuit produces
Raw the first pressure regulation signal is fixed voltage；
Wherein, when the first coil drive module is to determine frequency mode, the microcontroller controls the regulating circuit
The voltage quasi position of the first pressure regulation signal generated generates first amplified signal, institute for modulating first metal-oxide-semiconductor
The the first pulse bandwidth demodulated signal for stating microprocessor generation is fixed frequency.
As an alternative embodiment, the first coil drive module further include:
First temperature sensing circuit is electrically connected first metal-oxide-semiconductor and the microprocessor, first temperature detection
Circuit is used to detect the first temperature signal of first metal-oxide-semiconductor and is sent to the microprocessor, when first temperature is believed
Number be higher than temperature preset value when, the microcontroller disconnects the wireless charging function of first resonance circuit.
As an alternative embodiment, the wireless charging system includes:
Light emitting module is electrically connected the microprocessor, and the microprocessor is according to the first coil drive module
First charge mode and the first light-emitting mode for adjusting the light emitting module, wherein when first temperature signal be higher than it is described
When temperature preset value, the microcontroller adjusts the first light-emitting mode of the light emitting module, wherein the microprocessor according to
When first decoded signal judges that first running gear does not include charge coil, the microcontroller adjusts the light emitting module
The first light-emitting mode.
As an alternative embodiment, the second coil drive module includes:
Second input voltage detection circuit is electrically connected the power input port and the microprocessor；
Second reduction voltage circuit is electrically connected second input voltage detection circuit, the second input voltage measurement electricity
Road is used to detect the input voltage of second reduction voltage circuit, and second reduction voltage circuit is used for the first of the power supply signal
Voltage quasi position is depressurized to tertiary voltage level and generates the second electric power signal；
Second output voltage detecting circuit, electric connection second reduction voltage circuit and the microprocessor, described second
Output voltage detecting circuit is used to detect the output voltage of second reduction voltage circuit；
Second resonance circuit, for receiving second data information of the second running gear transmission, wherein described
Second resonance circuit includes one group of resonant capacitance and eight resonant inductances, when the microcontroller gates a wherein resonant inductance
When going to match one group of resonant capacitance, second resonance circuit sends the second wireless charging signal to the second action dress
It sets；
2nd MOS driver, is electrically connected the microprocessor, and the 2nd MOS driver receives the microprocessor
The second pulse bandwidth demodulated signal of transmission；
Second regulating circuit is electrically connected second reduction voltage circuit, the microcontroller and second output voltage
Detection circuit, second regulating circuit receive second electric power signal and micro- place that second reduction voltage circuit transmits
The second power controlling signal of device transmission is managed, second regulating circuit is according to second electric power signal and second electric power
It controls signal and generates the second pressure regulation signal；
Second metal-oxide-semiconductor is electrically connected the 2nd MOS driver, second regulating circuit and second resonance electricity
Road, second metal-oxide-semiconductor receive second driving signal or second regulating circuit that the 2nd MOS driver transmits
Second pressure regulation signal of transmission, second metal-oxide-semiconductor generate the according to second driving signal or the second pressure regulation signal
Two amplified signals are simultaneously sent to second resonance circuit；
Second voltage detection circuit is electrically connected second metal-oxide-semiconductor and the microcontroller, second voltage detection circuit
Second voltage detection information is generated according to the voltage of second resonance circuit；
Second current detection circuit is electrically connected second metal-oxide-semiconductor and the microcontroller, the second current detection circuit
The second current detecting information is generated according to the electric current of second resonance circuit；
Second information decoding circuit is electrically connected second metal-oxide-semiconductor and the microprocessor, the second information decoding
Circuit receives second data information of the second metal-oxide-semiconductor transmission and generates the second decoded information, the microprocessor root
Judge whether the second running gear includes charge coil according to second decoded signal, when the microprocessor is according to described second
When decoded signal judges that the second running gear includes charge coil, the microprocessor passes through letter according to second decoded information
It ceases decoding process and generates the second pulse bandwidth demodulated signal；
Wherein, the microprocessor according to the second decoded signal to judge the second running gear not include charge coil when, institute
It states microprocessor and does not generate the second pulse bandwidth demodulated signal；
Wherein, when the second coil drive module is hopping pattern, the microcontroller is according to second pulse
The frequency of bandwidth demodulated signal generates second amplified signal to modulate second metal-oxide-semiconductor, and second regulating circuit produces
The second raw pressure regulation signal is fixed voltage；
Wherein, when the second coil drive module is to determine frequency mode, the microcontroller controls the regulating circuit
The voltage quasi position of the second pressure regulation signal generated generates second amplified signal, institute for modulating second metal-oxide-semiconductor
The the second pulse bandwidth demodulated signal for stating microprocessor generation is fixed frequency.
As an alternative embodiment, the second coil drive module further include:
Second temperature detection circuit is electrically connected second metal-oxide-semiconductor and the microprocessor, the second temperature detection
Circuit is used to detect the second temperature signal of second metal-oxide-semiconductor and is sent to the microprocessor, when the second temperature is believed
Number be higher than temperature preset value when, the microcontroller disconnects the wireless charging function of second resonance circuit；
Light emitting module is electrically connected the microprocessor, and the microprocessor is according to the second coil drive module
Second charge mode and the second light-emitting mode for adjusting the light emitting module, wherein when the second temperature signal be higher than it is described
When temperature preset value, the microcontroller adjusts the second light-emitting mode of the light emitting module, wherein the microprocessor according to
When second decoded signal judges that second running gear does not include charge coil, the microcontroller adjusts the light emitting module
The second light-emitting mode.
The present invention provides a kind of wireless charging method of multi-coil, the wireless charging method includes:
Pressure stabilizing is carried out to the power supply signal that the power input port inputs by voltage regulator circuit；
Power supply signal after receiving the pressure stabilizing of the voltage regulator circuit transmission by microprocessor；
The first voltage level of the power supply signal is depressurized to second voltage level by first coil drive module；
The first voltage level of the power supply signal is depressurized to tertiary voltage level by the second coil drive module；
The first coil drive module is set independently of the second coil drive module；
It is isolated the first coil drive module and the second coil drive module generates by power end to ground terminal
Code of going here and there interferes.
A kind of wireless charging system of multi-coil is provided according to the present invention, on the basis of existing wireless charging system,
It proposes using single a microprocessor through first coil drive module and the second coil drive module to the first electronic device
And second electronic device carries out charge independence.The first coil drive module is set independently of the second coil drive mould
Block is effectively isolated first coil drive module and the second coil drive module and is interfered by the string code that power end to ground terminal generates.
In addition, carrying out charge independence to the first electronic device and second electronic device by single a microprocessor control, nothing can be reduced
The manufacturing cost of line charge electric system.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of the scope of the invention.
Fig. 1 is the block schematic diagram for the wireless charging system that the embodiment of the present invention 1 provides multi-coil.
Fig. 2 is the block schematic diagram for the wireless charging system that the embodiment of the present invention 2 provides multi-coil.
Fig. 3 is the method flow diagram for the wireless charging method that the embodiment of the present invention 3 provides multi-coil.
Main element symbol description:
100,200- wireless charging system；110,210- power input port；120,220- voltage regulator circuit；130,230- is micro-
Processor；140a, 240a- first coil drive module；The second coil drive module of 140b, 240b-；2401a- first inputs electricity
Press detection circuit；The first reduction voltage circuit of 2402a-；The first output voltage detecting circuit of 2403a-；The first resonance circuit of 2404a-；
2405a- first voltage detection circuit；The first current detection circuit of 2406a-；2407a- first information decoding circuit；2408a-
One MOS driver；The first regulating circuit of 2409a-；The first metal-oxide-semiconductor of 2410a-；The first temperature sensing circuit of 2411a-；2501b-
Second input voltage detection circuit；The second reduction voltage circuit of 2502b-；The second output voltage detecting circuit of 2503b-；2504b- second
Resonance circuit；2505b- second voltage detection circuit；The second current detection circuit of 2506b-；The second information of 2507b- decoding electricity
Road；The 2nd MOS driver of 2508b-；The second regulating circuit of 2509b-；The second metal-oxide-semiconductor of 2510b-；The detection of 2511b- second temperature
Circuit；260- light emitting module；Vcc- power end；GND- ground terminal.
Specific embodiment
The embodiment of the present invention is described below in detail, in which the same or similar labels are throughly indicated same or like
Element or element with the same or similar functions.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more feature.In the description of the present invention, the meaning of " plurality " is two or more, remove
It is non-separately to have clearly specific restriction.
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Embodiment 1
Referring to Fig. 1, Fig. 1 is that the embodiment of the present invention 1 provides wireless charging system (hereinafter referred to as " wireless charging system ")
Block schematic diagram.Wireless charging system 100 includes power input port 110, voltage regulator circuit 120, microprocessor 130, first
Coil drive module 140a and the second coil drive module 140b.Wherein, power input port 110, voltage regulator circuit 120, Wei Chu
Reason device 130, first coil drive module 140a and the second coil drive module 140b can be set in same integrated circuit.
Voltage regulator circuit 120 is electrically connected power input port 110 and microprocessor 130.For example, power input port 110
It can be USB port, micro USB port or the port C-type.The electricity that voltage regulator circuit 120 inputs power input port 110
Source signal carries out pressure stabilizing.Microprocessor 130 receives the power supply signal after the pressure stabilizing that voltage regulator circuit 120 transmits.
Power input port is electrically connected in first coil drive module 140a and the second coil drive module 140b
110.The first voltage level of power supply signal is depressurized to second voltage level by first coil drive module 140a.Second coil drives
The first voltage level of power supply signal is depressurized to tertiary voltage level by dynamic model block 140b.Wherein, second voltage level can phase
Different from tertiary voltage level, second voltage level can also be identical to tertiary voltage level.Second voltage level is independently of third
Voltage quasi position, and first coil drive module 140a is independently of the second coil drive module 140b, and is optimized by cabling, can be with
First coil drive module 140a and the second coil drive module 140b is effectively isolated to be generated by power end Vcc to ground terminal GND
String code interference.
In one embodiment, first coil drive module 140a is used to receive the first data letter of the first running gear transmission
Breath.First coil drive module 140a carries out information decoding process to the first data information.Microprocessor 130 is according to decoding process
The first data information afterwards decides whether to generate the first pulse bandwidth demodulated signal, after microprocessor 130 passes through decoding process
The first data information recognize the first running gear when including charge coil, first coil drive module 140a is according to the first pulse
Bandwidth demodulated signal charges to the first running gear.Opposite, the first number after microprocessor 130 passes through decoding process
According to the first running gear of information identification be foreign matter (such as metal or metalloid) when, first coil drive module 140a is not right
First running gear charges.
In one embodiment, the second coil drive module 140b is used to receive the second data letter of the second running gear transmission
Breath.Second coil drive module 140b carries out information decoding process to the second data information, and microprocessor 130 is according to decoding process
The second data information afterwards decides whether to generate the second pulse bandwidth demodulated signal, after microprocessor 130 passes through decoding process
The second data information recognize the second running gear when including charge coil, the second coil drive module 140b is according to the second pulse
Bandwidth demodulated signal charges to the second running gear.
For example, the first running gear can be smartwatch or smart phone, the first data information can represent intelligent hand
The charge power or remaining capacity of machine.First coil drive module 140a carries out information decoding process to the first data information.It is micro-
Processor 130 generates the first pulse bandwidth demodulated signal (PWM signal, pulse width according to the first data information
Modulation signal), for example, microprocessor 130 can be central processing unit (CPU, center processor
unit).First coil drive module 140a charges to the first running gear according to the first pulse bandwidth demodulated signal, example
Such as, first coil drive module 140a can be according to the duty ratio (such as 90%) of the first pulse bandwidth demodulated signal to the first row
Dynamic device carries out quick charge.In addition, being driven by a microprocessor 130 by first coil drive module 140a and the second coil
Dynamic model block 140b independently charges to the first running gear and the second running gear, and wireless charging system can be effectively reduced
100 manufacturing cost can also reduce by 100 circuit space of wireless charging system.
Embodiment 2
Referring to Fig. 2, Fig. 2 is that the embodiment of the present invention 2 provides wireless charging system (hereinafter referred to as " wireless charging system ")
Block schematic diagram.Wireless charging system 200 includes power input port 210, voltage regulator circuit 220, microprocessor 230, first
Coil drive module 240a, the second coil drive module 240b and light emitting module 260.
First coil drive module 240a include the first input voltage detection circuit 2401a, the first reduction voltage circuit 2402a,
First output voltage detecting circuit 2403a, the first resonance circuit 2404a, first voltage detection circuit 2405a, the inspection of the first electric current
Slowdown monitoring circuit 2406a, first information decoding circuit 2407a, the first MOS driver 2408a, the first voltage regulating module 2409a, first
Metal-oxide-semiconductor 2410a and the first temperature sensing circuit 2411a.
Second coil drive module 240b include the second input voltage detection circuit 2501b, the second reduction voltage circuit 2502b,
Second output voltage detecting circuit 2503b, the second resonance circuit 2504b, second voltage detection circuit 2505b, the inspection of the second electric current
Slowdown monitoring circuit 2506b, the second information decoding circuit 2507b, the 2nd MOS driver 2508b, the second voltage regulating module 2509b, second
Metal-oxide-semiconductor 2510b and second temperature detection circuit 2511b.
In Fig. 2, power input is electrically connected in the first input voltage detection circuit 2401a and voltage regulator circuit 220
Mouth 210 and microprocessor 230.First reduction voltage circuit 2402a is electrically connected the first input voltage detection circuit 2401a.First is defeated
Enter voltage detecting circuit 2401a for detecting the input voltage of the first reduction voltage circuit 2402a.First reduction voltage circuit 2402a is used for
The first voltage level of power supply signal is depressurized to second voltage level and generates the first electric power signal, the first reduction voltage circuit
First electric power signal is sent to the first regulating circuit 2409a by 2402a.First output voltage detecting circuit 2403a is electrically connected
First reduction voltage circuit 2402a and microprocessor 230a.First output voltage detecting circuit 2403a is for detecting the first reduction voltage circuit
The output voltage of 2402a.In other words, the first input voltage detection circuit 2401a and the first output voltage detecting circuit 2403a
It can be used for detecting pressure drop caused by the first reduction voltage circuit 2402a, i.e., the first voltage level of power supply signal be depressurized to
Two voltage quasi positions simultaneously generate the first electric power signal.
First temperature sensing circuit 2411a is electrically connected the first metal-oxide-semiconductor 2410a and microprocessor 230.First temperature detection
Circuit 2411a is used to detect the first temperature signal of the first metal-oxide-semiconductor 2410a and is sent to microprocessor 230.When the first temperature is believed
Number be higher than temperature preset value when, microcontroller 230 disconnect the first resonance circuit 240a wireless charging function.
Light emitting module 260 be electrically connected microprocessor 230, for example, light emitting module 260 can for light emitting diode (LED,
Light emitting diode) or thermal resistance.Microprocessor 230 is according to the first of first coil drive module 240a the charging mould
Formula and the first light-emitting mode for adjusting light emitting module 260.When the first temperature signal is higher than temperature preset value, microcontroller 230
Adjust the first light-emitting mode of light emitting module 260.Microprocessor 230 judges first running gear according to the first decoded signal
When not including charge coil, microcontroller 230 adjusts the first light-emitting mode of light emitting module 260.For example, the first running gear exists
When fast charge mode, light emitting module 260 issues green light.Microprocessor 230 is according to the second of the second coil drive module 240b the charging
Mode and dynamic adjusts the second light-emitting mode of light emitting module 260, for example, the second running gear is in normal charge mode, hair
Optical module 260 issues yellow light.
First resonance circuit 2404a is used to receive the first data information of the first running gear transmission.First resonance circuit
2404a includes one group of resonant capacitance and eight resonant inductances, when microcontroller 230 removes matching resonant capacitance to gate resonant inductance
When, the first resonance circuit 2404a sends the first wireless charging signal to the first running gear and charges to it.First MOS driving
Device 2408a is electrically connected microprocessor 230.First MOS driver 2408a receives the first pulse band that microprocessor 230 transmits
Wide demodulated signal.
First regulating circuit 2409a is electrically connected the first reduction voltage circuit 2402a and microprocessor 230.First regulating circuit
The first Electric control letter that 2409a receives the first electric power signal of the first reduction voltage circuit 2402a transmission and microprocessor 230 transmits
Number.First regulating circuit 2409a generates the first pressure regulation signal according to the first electric power signal and the first power controlling signal.
First metal-oxide-semiconductor 2410a is electrically connected the first MOS driver 2408a, the first regulating circuit 2409a and the first resonance
Circuit 2404a.First metal-oxide-semiconductor 2410a receives the first driving signal or the first pressure regulation electricity of the first MOS driver 2408a transmission
First pressure regulation signal of road 2409a transmission.First metal-oxide-semiconductor 2410a generates the according to the first driving signal or the first pressure regulation signal
One amplified signal is simultaneously sent to the first resonance circuit 2404a.
First voltage detection circuit 2405a is electrically connected the first metal-oxide-semiconductor 2410a and microcontroller 230, first voltage detection
Circuit 2405a generates first voltage detection information according to the voltage of the first resonance circuit 2404a by the first metal-oxide-semiconductor 2410a, the
One voltage detecting circuit 2405a can be used for preventing the overtension of the first resonance circuit 2404a.First current detection circuit
2406a is electrically connected the first metal-oxide-semiconductor 2410a and microcontroller 230.First current detection circuit 2406a passes through the first metal-oxide-semiconductor
2410a generates the first current detecting information according to the electric current of the first resonance circuit 2404a, and the first current detection circuit 2406a can
For preventing the electric current of the first resonance circuit 2404a excessively high.
First information decoding circuit 2407a is electrically connected the first metal-oxide-semiconductor 2410a and microprocessor 230.First information solution
Code circuit 2407a receives the first data information of the first metal-oxide-semiconductor 2410a transmission and generates the first decoded information.Microprocessor 230
Judge whether the first running gear includes charge coil according to the first decoded signal.When microprocessor 230 is believed according to the first decoding
When number judging that the first running gear includes charge coil, microprocessor 230 passes through information decoding process according to the first decoded information
Generate the first pulse bandwidth demodulated signal.Wherein, microprocessor 230 judges that the first running gear does not wrap according to the first decoded signal
When including charge coil, microprocessor 230 does not generate the first pulse bandwidth demodulated signal.
In one embodiment, when first coil drive module 240a is hopping pattern, microcontroller 230 is according to the first arteries and veins
The frequency of bandwidth demodulated signal is rushed to modulate the first metal-oxide-semiconductor 2410a and generate the first amplified signal.At this point, the first regulating circuit
The first pressure regulation signal that 2409a is generated is fixed voltage.
In one embodiment, when first coil drive module 240a is to determine frequency mode, the control of microcontroller 230 first is adjusted
The voltage quasi position for the first pressure regulation signal that volt circuit 2409a is generated generates the first amplification letter for modulating the first metal-oxide-semiconductor 2410a
Number.At this point, the first pulse bandwidth demodulated signal that microprocessor 230 generates is fixed frequency.
Second input voltage detection circuit 2501b is electrically connected power input port 210 and microprocessor 230.Second drop
Volt circuit 2502b is electrically connected the second input voltage detection circuit 2501b.Second input voltage detection circuit 2501b is for examining
Survey the input voltage of the second reduction voltage circuit 2502b.Second reduction voltage circuit 2502b is used to drop the first voltage level of power supply signal
It is depressed into tertiary voltage level and generates the second electric power signal, the second electric power signal is sent to second by the second reduction voltage circuit 2502b
Voltage regulator circuit 2509b.Second output voltage detecting circuit 2503b is electrically connected the second reduction voltage circuit 2502b and microprocessor
230.Second output voltage detecting circuit 2503b is used to detect the output voltage of the second reduction voltage circuit 2502b.
Second temperature detection circuit 2511b is electrically connected the second metal-oxide-semiconductor 2510b and microprocessor 230.Second temperature detection
Circuit 2511b is used to detect the first temperature signal of the second metal-oxide-semiconductor 2510b and is sent to microprocessor 230.When second temperature is believed
Number be higher than temperature preset value when, microcontroller 230 disconnect the second resonance circuit 240b wireless charging function.
Microprocessor 230 adjusts light emitting module 260 according to the second charge mode of the second coil drive module 240b
Second light-emitting mode.When second temperature signal is higher than temperature preset value, microcontroller 230 adjusts the second of light emitting module 260
Light-emitting mode.Microprocessor 230 according to the second decoded signal to judge the second running gear not include charge coil when, microcontroller
Second light-emitting mode of 230 adjustment light emitting modules 260.For example, the second running gear, in fast charge mode, light emitting module 260 is sent out
Green light out.Microprocessor 230 dynamically adjusts light emitting module 260 according to the second charge mode of the second coil drive module 240b
The second light-emitting mode, for example, the second running gear is in normal charge mode, light emitting module 260 issues yellow light.
Second resonance circuit 2504b is used to receive the second data information of the second running gear transmission.Second resonance circuit
2504b includes one group of resonant capacitance and eight resonant inductances, when microcontroller 230 removes matching resonant capacitance to gate resonant inductance
When, the second resonance circuit 2504b sends the second wireless charging signal to the second running gear and charges to it.2nd MOS driving
Device 2508b is electrically connected microprocessor 230.2nd MOS driver 2508b receives the second pulse band that microprocessor 230 transmits
Wide demodulated signal.
Second regulating circuit 2509b is electrically connected the second reduction voltage circuit 2502b and microprocessor 230.Second regulating circuit
The second Electric control letter that 2509b receives the second electric power signal of the second reduction voltage circuit 2502b transmission and microprocessor 230 transmits
Number.Second regulating circuit 2509b generates the second pressure regulation signal according to the second electric power signal and the second power controlling signal.
Second metal-oxide-semiconductor 2510b is electrically connected the 2nd MOS driver 2508b, the second regulating circuit 2509b and the second resonance
Circuit 2504b.Second metal-oxide-semiconductor 2510b receives the second driving signal or the second pressure regulation electricity of the 2nd MOS driver 2508b transmission
Second pressure regulation signal of road 2509b transmission.Second metal-oxide-semiconductor 2510b generates the according to the second driving signal or the second pressure regulation signal
Two amplified signals are simultaneously sent to the second resonance circuit 2504b.
Second voltage detection circuit 2505b is electrically connected the second metal-oxide-semiconductor 2510b and microcontroller 230, second voltage detection
Circuit 2505b generates second voltage detection information according to the voltage of the second resonance circuit 2504b by the second metal-oxide-semiconductor 2510b.The
Two current detection circuit 2506b are electrically connected the second metal-oxide-semiconductor 2510b and microcontroller 230.Second current detection circuit 2506a
The second current detecting information is generated according to the electric current of the second resonance circuit 2504b by the second metal-oxide-semiconductor 2510a.
Second information decoding circuit 2507b is electrically connected the second metal-oxide-semiconductor 2510b and microprocessor 230.Second information solution
Code circuit 2507b receives the second data information of the second metal-oxide-semiconductor 2510b transmission and generates the second decoded information.Microprocessor 230
Judge whether the second running gear includes charge coil according to the second decoded signal.When microprocessor 230 is believed according to the second decoding
When number judging that the second running gear includes charge coil, microprocessor 230 passes through information decoding process according to the second decoded information
Generate the second pulse bandwidth demodulated signal.Wherein, microprocessor 230 judges that the second running gear does not wrap according to the second decoded signal
When including charge coil, microprocessor 230 does not generate the second pulse bandwidth demodulated signal.
In one embodiment, when the second coil drive module 240b is hopping pattern, microcontroller 230 is according to the second arteries and veins
The frequency of bandwidth demodulated signal is rushed to modulate the second metal-oxide-semiconductor 2510b and generate the second amplified signal.At this point, the second regulating circuit
The second pressure regulation signal that 2509a is generated is fixed voltage.
In one embodiment, when the second coil drive module 240b is to determine frequency mode, the control of microcontroller 230 second is adjusted
The voltage quasi position for the second pressure regulation signal that volt circuit 2509b is generated generates the second amplification letter for modulating the second metal-oxide-semiconductor 2510b
Number.At this point, the second pulse bandwidth demodulated signal that microprocessor 230 generates is fixed frequency.
Embodiment 3
Referring to Fig. 3, Fig. 3 is that the embodiment of the present invention 3 provides the wireless charging method (hereinafter referred to as " wireless charging of multi-coil
Method for electrically ") method flow diagram.Wireless charging method includes:
S301, pressure stabilizing is carried out to the power supply signal that power input port inputs by voltage regulator circuit；
S303, the power supply signal after the pressure stabilizing that voltage regulator circuit transmits is received by microprocessor；
S305, the first voltage level of power supply signal is depressurized to second voltage level by first coil drive module；
S307, the first voltage level of power supply signal is depressurized to tertiary voltage level by the second coil drive module；
S309, setting first coil drive module are independently of the second coil drive module；
The string code that S311, isolation first coil drive module and the second coil drive module are generated by power end to ground terminal
Interference.
The present invention provides a kind of wireless charging systems of multi-coil, are driven using a microprocessor by first coil
Module and the second coil drive module carry out charge independence to the first running gear and the second running gear.First coil is arranged to drive
Dynamic model block is effectively isolated first coil drive module and the second coil drive module by power supply independently of the second coil drive module
The string code interference for holding ground terminal to generate.In addition, being filled by single a microprocessor control to the first running gear and the second action
Carry out charge independence is set, the manufacturing cost of wireless charging system can be reduced.In addition, first coil drive module and the second coil
Drive module is respectively provided with one group of resonant capacitance and eight resonant inductances, and microcontroller is parallel for identification and is arbitrarily placed at nothing
Running gear on the particular resonance inductance of line charge electric system charges to it.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, above in conjunction in the embodiment of the present invention
Attached drawing, technical solution in the embodiment of the present invention clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the above detailed description to the embodiment of the present invention provided in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
Claims (10)
1. a kind of wireless charging system of multi-coil, which is characterized in that the wireless charging system includes:
Power input port；
Voltage regulator circuit is electrically connected the power input port, the electricity that the voltage regulator circuit inputs the power input port
Source signal carries out pressure stabilizing；
Microprocessor is electrically connected the voltage regulator circuit, after the microprocessor receives the pressure stabilizing of the voltage regulator circuit transmission
Power supply signal；
First coil drive module is electrically connected the microprocessor and the power input port, the first coil driving
The first voltage level of the power supply signal is depressurized to second voltage level by module；
Second coil drive module is electrically connected the microprocessor and the power input port, second coil drive
The first voltage level of the power supply signal is depressurized to tertiary voltage level by module；
Wherein, the first coil drive module is independently of the second coil drive module, for the first coil driving to be isolated
Module and the second coil drive module are interfered by the string code that power end to ground terminal generates.
2. wireless charging system according to claim 1, which is characterized in that the first coil drive module is for receiving
First data information of the first running gear transmission, the first coil drive module carry out information to first data information
Decoding process, the microprocessor decide whether that generating the first pulse bandwidth demodulates according to the first data information after decoding process
Signal, it includes charging cable that the first data information after the microprocessor is by decoding process, which recognizes first running gear,
When circle, the first coil drive module fills first running gear according to the first pulse bandwidth demodulated signal
Electricity.
3. wireless charging system according to claim 1, which is characterized in that the second coil drive module is for receiving
Second data information of the second running gear transmission, the second coil drive module carry out information to second data information
Decoding process, the microprocessor decide whether that generating the second pulse bandwidth demodulates according to the second data information after decoding process
Signal, it includes charging cable that the second data information after the microprocessor is by decoding process, which recognizes second running gear,
When circle, the second coil drive module fills second running gear according to the second pulse bandwidth demodulated signal
Electricity.
4. wireless charging system according to claim 1, which is characterized in that the first coil drive module includes:
First input voltage detection circuit is electrically connected the power input port and the microprocessor；
First reduction voltage circuit, is electrically connected first input voltage detection circuit, and first input voltage detection circuit is used
In the input voltage for detecting first reduction voltage circuit, first reduction voltage circuit is used for the first voltage of the power supply signal
Level is depressurized to second voltage level and generates the first electric power signal；
First output voltage detecting circuit is electrically connected first reduction voltage circuit and the microprocessor, first output
Voltage detecting circuit is used to detect the output voltage of first reduction voltage circuit.
5. wireless charging system according to claim 4, which is characterized in that the first coil drive module further include:
First resonance circuit, for receiving the first data information of the first running gear transmission, wherein first resonance
Circuit includes one group of resonant capacitance and eight resonant inductances, when the microcontroller goes to matching institute to gate a wherein resonant inductance
When stating one group of resonant capacitance, first resonance circuit sends the first wireless charging signal to first running gear；
First MOS driver, is electrically connected the microprocessor, and the first MOS driver receives the microprocessor transmission
The first pulse bandwidth demodulated signal；
First regulating circuit, is electrically connected first reduction voltage circuit and the microprocessor, and first regulating circuit receives
First electric power signal of the first reduction voltage circuit transmission and the first power controlling signal of microprocessor transmission, institute
It states the first regulating circuit and the first pressure regulation signal is generated according to first electric power signal and first power controlling signal；
First metal-oxide-semiconductor is electrically connected the first MOS driver, first regulating circuit and first resonance circuit, institute
State first driving signal or first regulating circuit transmission that the first metal-oxide-semiconductor receives the first MOS driver transmission
The first pressure regulation signal, first metal-oxide-semiconductor generates the according to first driving signal or the first pressure regulation signal
One amplified signal is simultaneously sent to first resonance circuit；
First voltage detection circuit, is electrically connected first metal-oxide-semiconductor and the microcontroller, first voltage detection circuit according to
The voltage of first resonance circuit generates first voltage detection information；
First current detection circuit, is electrically connected first metal-oxide-semiconductor and the microcontroller, the first current detection circuit according to
The electric current of first resonance circuit generates the first current detecting information；
First information decoding circuit is electrically connected first metal-oxide-semiconductor and the microprocessor, the first information decoding circuit
It receives first data information of the first metal-oxide-semiconductor transmission and generates the first decoded information, the microprocessor is according to institute
It states the first decoded signal and judges whether the first running gear includes charge coil, when the microprocessor is according to first decoding
When signal judges that the first running gear includes charge coil, the microprocessor passes through information solution according to first decoded information
Code processing generates the first pulse bandwidth demodulated signal；
Wherein, the microprocessor according to the first decoded signal to judge the first running gear not include charge coil when, it is described micro-
Processor does not generate the first pulse bandwidth demodulated signal；
Wherein, when the first coil drive module is hopping pattern, the microcontroller is according to first pulse bandwidth
The frequency of demodulated signal generates first amplified signal to modulate first metal-oxide-semiconductor, what first regulating circuit generated
The first pressure regulation signal is fixed voltage；
Wherein, when the first coil drive module is to determine frequency mode, the microcontroller controls the regulating circuit and generates
The voltage quasi position of the first pressure regulation signal generate first amplified signal for modulating first metal-oxide-semiconductor, it is described micro-
The first pulse bandwidth demodulated signal that processor generates is fixed frequency.
6. wireless charging system according to claim 5, which is characterized in that the first coil drive module further include:
First temperature sensing circuit is electrically connected first metal-oxide-semiconductor and the microprocessor, first temperature sensing circuit
For detecting the first temperature signal of first metal-oxide-semiconductor and being sent to the microprocessor, when first temperature signal is high
When temperature preset value, the microcontroller disconnects the wireless charging function of first resonance circuit.
7. wireless charging system according to claim 6, which is characterized in that the wireless charging system includes:
Light emitting module is electrically connected the microprocessor, and the microprocessor is according to the first of the first coil drive module
Charge mode and the first light-emitting mode for adjusting the light emitting module, wherein when first temperature signal is higher than the temperature
When preset value, the microcontroller adjusts the first light-emitting mode of the light emitting module, wherein the microprocessor is according to first
When decoded signal judges that first running gear does not include charge coil, the microcontroller adjusts the of the light emitting module
One light-emitting mode.
8. wireless charging system according to claim 1, which is characterized in that the second coil drive module includes:
Second input voltage detection circuit is electrically connected the power input port and the microprocessor；
Second reduction voltage circuit, is electrically connected second input voltage detection circuit, and second input voltage detection circuit is used
In the input voltage for detecting second reduction voltage circuit, second reduction voltage circuit is used for the first voltage of the power supply signal
Level is depressurized to tertiary voltage level and generates the second electric power signal；
Second output voltage detecting circuit is electrically connected second reduction voltage circuit and the microprocessor, second output
Voltage detecting circuit is used to detect the output voltage of second reduction voltage circuit；
Second resonance circuit, for receiving second data information of the second running gear transmission, wherein described second
Resonance circuit includes one group of resonant capacitance and eight resonant inductances, when the microcontroller is gone to gate a wherein resonant inductance
When with one group of resonant capacitance, second resonance circuit sends the second wireless charging signal to second running gear；
2nd MOS driver, is electrically connected the microprocessor, and the 2nd MOS driver receives the microprocessor transmission
The second pulse bandwidth demodulated signal；
Second regulating circuit is electrically connected second reduction voltage circuit, the microcontroller and second output voltage detection
Circuit, second regulating circuit receive second electric power signal and the microprocessor of the second reduction voltage circuit transmission
Second power controlling signal of transmission, second regulating circuit is according to second electric power signal and second Electric control
Signal generates the second pressure regulation signal；
Second metal-oxide-semiconductor is electrically connected the 2nd MOS driver, second regulating circuit and second resonance circuit, institute
State second driving signal or second regulating circuit transmission that the second metal-oxide-semiconductor receives the 2nd MOS driver transmission
The second pressure regulation signal, second metal-oxide-semiconductor generates second according to second driving signal or the second pressure regulation signal and puts
Big signal is simultaneously sent to second resonance circuit；
Second voltage detection circuit, is electrically connected second metal-oxide-semiconductor and the microcontroller, second voltage detection circuit according to
The voltage of second resonance circuit generates second voltage detection information；
Second current detection circuit, is electrically connected second metal-oxide-semiconductor and the microcontroller, the second current detection circuit according to
The electric current of second resonance circuit generates the second current detecting information；
Second information decoding circuit is electrically connected second metal-oxide-semiconductor and the microprocessor, the second information decoding circuit
It receives second data information of the second metal-oxide-semiconductor transmission and generates the second decoded information, the microprocessor is according to institute
It states the second decoded signal and judges whether the second running gear includes charge coil, when the microprocessor is according to second decoding
When signal judges that the second running gear includes charge coil, the microprocessor passes through information solution according to second decoded information
Code processing generates the second pulse bandwidth demodulated signal；
Wherein, the microprocessor according to the second decoded signal to judge the second running gear not include charge coil when, it is described micro-
Processor does not generate the second pulse bandwidth demodulated signal；
Wherein, when the second coil drive module is hopping pattern, the microcontroller is according to second pulse bandwidth
The frequency of demodulated signal generates second amplified signal to modulate second metal-oxide-semiconductor, what second regulating circuit generated
Second pressure regulation signal is fixed voltage；
Wherein, when the second coil drive module is to determine frequency mode, the microcontroller controls the regulating circuit and generates
The voltage quasi position of the second pressure regulation signal generate second amplified signal for modulating second metal-oxide-semiconductor, it is described micro-
The second pulse bandwidth demodulated signal that processor generates is fixed frequency.
9. wireless charging system according to claim 8, which is characterized in that the second coil drive module further include:
Second temperature detection circuit is electrically connected second metal-oxide-semiconductor and the microprocessor, the second temperature detection circuit
For detecting the second temperature signal of second metal-oxide-semiconductor and being sent to the microprocessor, when the second temperature signal is high
When temperature preset value, the microcontroller disconnects the wireless charging function of second resonance circuit；
Light emitting module is electrically connected the microprocessor, and the microprocessor is according to the second of the second coil drive module
Charge mode and the second light-emitting mode for adjusting the light emitting module, wherein when the second temperature signal is higher than the temperature
When preset value, the microcontroller adjusts the second light-emitting mode of the light emitting module, wherein the microprocessor is according to second
When decoded signal judges that second running gear does not include charge coil, the microcontroller adjusts the of the light emitting module
Two light-emitting modes.
10. a kind of wireless charging method of multi-coil, which is characterized in that the wireless charging method includes:
Pressure stabilizing is carried out to the power supply signal that the power input port inputs by voltage regulator circuit；
Power supply signal after receiving the pressure stabilizing of the voltage regulator circuit transmission by microprocessor；
The first voltage level of the power supply signal is depressurized to second voltage level by first coil drive module；
The first voltage level of the power supply signal is depressurized to tertiary voltage level by the second coil drive module；
The first coil drive module is set independently of the second coil drive module；
The string code that the first coil drive module and the second coil drive module are generated by power end to ground terminal is isolated
Interference.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811061654.XA CN109004769A (en) | 2018-09-12 | 2018-09-12 | The wireless charging system and method for multi-coil |
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| CN201811061654.XA CN109004769A (en) | 2018-09-12 | 2018-09-12 | The wireless charging system and method for multi-coil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022002197A1 (en) * | 2020-07-03 | 2022-01-06 | 维沃移动通信有限公司 | Electronic device assembly, charging control method, and charging control apparatus for electronic device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022002197A1 (en) * | 2020-07-03 | 2022-01-06 | 维沃移动通信有限公司 | Electronic device assembly, charging control method, and charging control apparatus for electronic device |
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