CN110854963A - Charging system and method applied to mobile power supply - Google Patents
Charging system and method applied to mobile power supply Download PDFInfo
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- CN110854963A CN110854963A CN201911234964.1A CN201911234964A CN110854963A CN 110854963 A CN110854963 A CN 110854963A CN 201911234964 A CN201911234964 A CN 201911234964A CN 110854963 A CN110854963 A CN 110854963A
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The invention discloses a charging system and a charging method applied to a mobile power supply, the system comprises a wired charging and discharging unit, a wireless charging unit and a power supply unit, the wireless charging unit comprises a wireless power supply control module and a charging transmitting end, the wireless power supply control module receives a power supply signal transmitted by the wired charging and discharging unit through a connecting terminal and carries out wireless electric energy transmission on wireless charging and receiving equipment through the charging transmitting end, and the wired charging and discharging unit is provided with a power supply connecting end, a wired input and output port and a DC/DC module and is used for direct current transmission in a wired mode and electric energy transmission to the wireless charging unit through the connecting terminal. The method is applied to the charging system. The invention can solve the problem that the existing mobile power supply can not realize the wired and wireless quick charging of two intelligent devices at the same time, and can not occupy the original output port of the system, thereby improving the charging efficiency, shortening the charging time and greatly optimizing the charging efficiency.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of power supply charging, in particular to a charging system applied to a mobile power supply and a charging method applied to the system.
[ background of the invention ]
With the use of various portable electronic devices, batteries and battery charging methods that affect the performance and lifetime of the portable electronic devices have attracted interest. Thus, electronic devices equipped with wireless charging means as well as wired charging means have appeared, and also attention has been paid to electronic devices capable of providing both wired and wireless charging.
At present, most of mobile power supplies with wireless charging functions in the market support wired output and quick charging for terminal equipment (such as smart phones, notebooks and tablet computers) and also support wireless output and quick charging for terminal equipment. However, when two terminal devices are charged by using both wired and wireless charging modes, both charging modes can only be at a common charging speed, and the function of simultaneous quick charging cannot be realized.
In addition, in the conventional mobile power supply with the wireless charging function, the wireless charging transmitting circuit is connected to one of the output ports of the system, so that the wireless charging transmitting circuit occupies the original output port.
[ summary of the invention ]
The invention mainly aims to provide a charging system which can realize the wired and wireless quick charging of two terminal devices simultaneously and can not occupy the original output port of the system and is applied to a mobile power supply.
Another object of the present invention is to provide a charging system applied to a mobile power supply, which is compatible with both wired charging and wireless charging and is capable of supporting both wired charging and wireless charging while realizing a quick-charge output.
In order to achieve the main object, the charging system applied to the mobile power supply provided by the invention comprises a wired charging and discharging unit, a wireless charging unit and a power supply unit, wherein the wireless charging unit comprises a wireless power supply control module connected with a connecting terminal of the wired charging and discharging unit and a charging transmitting terminal connected with the wireless power supply control module, and the wireless power supply control module receives a power supply signal transmitted by the wired charging and discharging unit through the connecting terminal and performs wireless power transmission on a wireless charging and receiving device through the charging transmitting terminal; wired charge and discharge unit be equipped with the power connection end that power supply unit connects, with wired input/output port that the receiving arrangement is connected that fills, with the DC/DC module that wired input/output port is connected for direct current transmission under the wired mode and pass through binding post to wireless charging unit transmission electric energy, wherein, binding post does DC/DC module's the output terminal that steps up.
Further, the wireless power supply control module comprises a PWM driving circuit, an H-bridge resonant circuit, a half-wave rectifying circuit, a high-low pass filter circuit, a signal amplifying circuit and a decoding circuit, the PWM driving circuit receives a charging request signal sent by wireless charging receiving equipment, the PWM driving circuit outputs a driving signal to the H-bridge resonant circuit, the H-bridge resonant circuit outputs a resonant signal to the half-wave rectifying circuit, the half-wave rectifying circuit outputs a half-wave rectifying signal to the high-low pass filter circuit, the high-low pass filter circuit outputs a filter signal to the signal amplifying circuit, the signal amplifying circuit outputs an amplified signal to the decoding circuit, the decoding circuit decodes the received amplified signal to generate a data communication signal of the wireless charging and receiving equipment, and outputting electric energy to the wireless charging receiving equipment through the charging transmitting terminal according to the data communication signal.
The DC/DC module comprises an MCU control circuit, a boost circuit and a voltage reduction circuit, wherein the MCU control circuit is respectively electrically connected with the boost circuit and the voltage reduction circuit, and the boost output terminal is a VSYS output terminal of the boost circuit.
According to a further scheme, the wired input and output port comprises a Micro-B input port, a Type-C input and output port and two Type-A output ports, and switch tubes are connected between the Micro-B input port, the Type-C input and output port, the Type-A output port and the DC/DC module respectively.
Therefore, the charging system provided by the invention mainly comprises a wired charging and discharging part circuit and a wireless charging and transmitting part circuit, the input of the wireless charging and transmitting part circuit is connected to the VSYS node of the wired charging and discharging part, and the original wired input/output port is not occupied.
The DC/DC module of the wired charging and discharging part supports two modes of voltage boosting and voltage reducing, works in the voltage reducing mode when the battery is charged, and works in the voltage boosting mode when the battery is discharged for mobile equipment such as a smart phone. And meanwhile, a MicroB input port, a TypeC input/output port and two TypeA output ports are supported, the mobile equipment is charged through a data connection line, the wireless charging unit is powered through a self VSYS node, and quick charging protocols such as QC and PD are supported.
The wireless charging unit mainly comprises a PWM (pulse-width modulation) driving circuit, an H-bridge resonant circuit, a half-wave rectifying circuit, a high-low pass filter circuit and a signal amplifying and decoding circuit, supports the Qi wireless charging standard, has the maximum output power of 10W, and is used for charging the wireless charging receiving equipment.
Therefore, the invention can solve the problem that the mobile power supply cannot realize the wired and wireless quick charging of two intelligent devices at the same time, can accelerate the charging speed of the electric equipment, and greatly optimizes the charging efficiency, thereby improving the charging efficiency and shortening the charging time.
In order to achieve another object, the present invention further provides a charging method applied to a charging system of a mobile power supply, which is applied to the charging system described above, and the method includes: after the current system is determined to be in a state detection mode, whether wireless charging receiving equipment is put in is detected, if yes, the system enters a system output current limiting mode, whether the voltage of a wiring terminal of a wired charging and discharging unit is larger than a first preset voltage value is judged, if yes, a wired output current limiting step is executed, the wireless charging energy transmission stage is started, and wireless electric energy transmission is carried out on the wireless charging receiving equipment through a charging transmitting terminal of a wireless charging unit; when the wired charging receiving device is detected to be inserted, the wireless charging unit is closed, meanwhile, the voltage of the wiring terminal is adjusted to a second preset voltage value, the wireless charging unit is restarted within preset time, and meanwhile, the wireless charging receiving device and the wired charging receiving device are charged.
Further, the wired output current limiting step specifically includes: all wired input and output ports of the wired charging and discharging unit are closed to output, and meanwhile, the quick charging functions of the wireless charging unit and the wired input and output ports are closed; and after the current limiting value of the wired input/output port is reduced to the preset current limiting value, the quick charging function of the wired input/output port is enabled, and each wired input/output port is detected again.
According to a further scheme, if the voltage of the wiring terminal of the wired charging and discharging unit is determined to be smaller than a first preset voltage value, the current limiting value of the wired input/output port is directly set as a preset current limiting value, and a wireless charging energy transmission stage is started.
In a further aspect, when the wireless charging unit is in an idle state, the current system enters the state detection mode again, performs state detection on the entire charging system, and restarts the wireless charging unit after the detection is completed.
A further scheme is that when the current system enters a state detection mode, whether a recovery current limiting flag of the wired input/output port is set or not is judged, and if the judgment result is yes and the wireless charging unit is in an idle state, the current limiting value of the wired input/output port is recovered to be the original current limiting value; detecting the charge-discharge state conversion of the system, and when detecting that the system is converted from the charge state to the discharge state or from the discharge state to the charge state, closing the wireless charging unit and positioning a delay starting mark of the wireless charging unit; detecting the overcurrent and undervoltage states of the wireless charging unit, and reducing the transmitting power of a charging transmitting end of the wireless charging unit when detecting the overcurrent or undervoltage of the system; detecting the voltage of a wiring terminal of the wired charging and discharging unit, and when the voltage change value of the current wiring terminal and the voltage change value of the initial wiring terminal exceed a third voltage preset value, closing the wireless charging unit and positioning a delay start mark of the wireless charging unit; detecting the load state of the wired input/output ports and adjusting the voltage of the wiring terminals, and when all the wired input/output ports are in light load, closing all the wired input/output ports and adjusting the voltage of the wiring terminals to a fourth preset voltage value; and judging whether the delay starting mark of the wireless charging unit is set and whether the delay time exceeds a preset time value, and if so, restarting the wireless charging unit.
According to a further scheme, when the wired charging receiving device is detected to be inserted, an interrupt processing program is entered, the wireless charging unit is closed in the interrupt processing program, the wireless charging unit delay starting mark is located, meanwhile, the voltage of the wiring terminal is adjusted to a second preset voltage value, and meanwhile, the wireless charging receiving device and the wired charging receiving device are charged.
Therefore, the charging method provided by the invention can solve the problem that a mobile power supply cannot realize the wired and wireless quick charging of two intelligent devices at the same time, does not occupy the original output port of a system, adapts to the trend of the current quick charging technology, meets the requirement that one mobile power supply simultaneously and quickly charges a plurality of devices, can bring better user experience, can accelerate the charging speed of the electric devices, greatly optimizes the charging efficiency, thereby improving the charging efficiency and shortening the charging time.
[ description of the drawings ]
Fig. 1 is a schematic diagram of a charging system applied to a mobile power supply according to an embodiment of the present invention.
Fig. 2 is a block flow diagram of an embodiment of a charging method applied to a charging system of a mobile power supply according to the present invention.
Fig. 3 is a schematic block diagram of a wired output current limiting step in an embodiment of a charging method applied to a charging system of a mobile power supply according to the present invention.
Fig. 4 is a block diagram of a process of charging a wired charging receiving device in an embodiment of a charging method applied to a charging system of a mobile power supply according to the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention.
The embodiment of the charging system applied to the mobile power supply comprises the following steps:
referring to fig. 1, the charging circuit of the present invention includes a wired charging and discharging unit 10, a wireless charging unit 20 and a power supply unit 30, where the wireless charging unit 20 includes a wireless power supply control module connected to a connection terminal of the wired charging and discharging unit 10, and a charging transmitting terminal connected to the wireless power supply control module, and the wireless power supply control module receives a power supply signal transmitted by the wired charging and discharging unit 10 through the connection terminal and performs wireless power transmission on the wireless charging and receiving device 1 through the charging transmitting terminal; the wired charging and discharging unit 10 is provided with a power connection terminal connected to the power supply unit 30, a wired input/output port connected to the wired charging and receiving device, and a DC/DC module 11 connected to the wired input/output port, and is configured to transmit DC power in a wired mode and transmit electric power to the wireless charging unit 20 through a connection terminal, where the connection terminal is a boost output terminal of the DC/DC module 11.
In this embodiment, the wireless power supply control module includes a PWM driving circuit 21, an H-bridge resonant circuit 22, a half-wave rectifying circuit 23, a high-low pass filter circuit 24, a signal amplifying circuit 25 and a decoding circuit 26, the PWM driving circuit 21 receives a charging request signal sent by the wireless charging receiving device 1, the PWM driving circuit 21 outputs a driving signal to the H-bridge resonant circuit 22, the H-bridge resonant circuit 22 outputs a resonant signal to the half-wave rectifying circuit 23, the half-wave rectifying circuit 23 outputs a half-wave rectified signal to the high-low pass filter circuit 24, the high-low pass filter circuit 24 outputs a filtered signal to the signal amplifying circuit 25, the signal amplifying circuit 25 outputs an amplified signal to the decoding circuit 26, the decoding circuit 26 decodes the received amplified signal to generate a data communication signal of the wireless charging receiving device 1, and outputs electric energy to the wireless charging receiving device 1 through the charging transmitting terminal according to the data communication signal.
In this embodiment, the DC/DC module 11 includes an MCU control circuit, a voltage boost circuit and a voltage step-down circuit, the MCU control circuit is electrically connected to the voltage boost circuit and the voltage step-down circuit respectively, wherein the voltage boost output terminal is the VSYS output terminal of the voltage boost circuit.
Specifically, the H-bridge resonant circuit 22 includes a capacitor and a transmitting coil, the charging transmitting terminal of this embodiment may be the transmitting coil of the H-bridge resonant circuit 22, when the decoding circuit performs signal processing, a data communication signal of the wireless charging receiving device 1 is generated, and the MCU control circuit outputs electric energy to the wireless charging receiving device 1 through the transmitting coil of the H-bridge resonant circuit 22 according to the data communication signal. Therefore, the MCU is integrated in the DC/DC module, the system is more modular, the MCU is used as a master control center to control the wireless charging unit and the wired charging and discharging unit to charge or discharge the charging equipment, and the applicability is stronger.
In this embodiment, the wired input/output ports include a Micro-B input port 14, a Type-C input/output port 12, two Type-A output ports 13, and the switching tubes 15 are respectively connected between the Micro-B input port 14, the Type-C input/output port 12, the Type-A output port 13 and the DC/DC module 11. Preferably, the switching tube 15 is a MOS tube.
Specifically, the DC/DC module 11 of the wired charging and discharging unit 10 supports two modes, i.e., a step-up mode and a step-down mode, and operates in the step-down mode when charging the battery and operates in the step-up mode when discharging the battery to a mobile device such as a smart phone. And meanwhile, the mobile charging system supports a Micro-B input port 14, a Type-C input/output port 12 and two Type-A output ports 13, is used for charging the mobile device through a data connection line, and simultaneously supplies power to the wireless charging unit 20 through a self VSYS node, and supports quick charging protocols such as QC and PD.
The wireless charging unit 20 mainly comprises a PWM driving circuit 21, an H-bridge resonant circuit 22, a half-wave rectifying circuit 23, a high-low pass filter circuit 24, a signal amplifying circuit 25, and a decoding circuit 26. The PWM driving circuit 21 drives the H-bridge resonant circuit 22, the generated resonant signal passes through the half-wave rectifying circuit 23 to obtain a positive signal, the signal passes through the high-low pass filter circuit 24 to obtain a small signal with a frequency range of 320Hz to 3200Hz, and the small signal is sent to the signal amplifying circuit 25 and the decoding circuit 26 to be amplified and decoded, so as to finally obtain the charging request signal sent by the wireless charging and receiving device 1. Therefore, the wireless charging unit 20 supports the Qi wireless charging standard, maximum output power 10W, for charging the wireless charging reception device 1.
Therefore, the charging system provided by the invention mainly comprises a wired charging and discharging part circuit and a wireless charging and transmitting part circuit, the input of the wireless charging and transmitting part circuit is connected to the VSYS node of the wired charging and discharging part, and the original wired input/output port is not occupied.
Meanwhile, the invention can solve the problem that the mobile power supply cannot realize the wired and wireless quick charging of two intelligent devices at the same time, can accelerate the charging speed of the electric equipment, and greatly optimizes the charging efficiency, thereby improving the charging efficiency and shortening the charging time.
The embodiment of the charging method applied to the charging system of the mobile power supply comprises the following steps:
a charging method applied to a charging system of a mobile power supply is applied to the charging system. As shown in fig. 2, when the method is used for charging the electric device, firstly, step S1 is executed, after determining that the current system is in the state detection mode, step S2 is executed, whether the wireless charging and receiving device 1 is placed is detected, if yes, step S3 is executed, and the system enters the output current limiting mode.
Then, step S4 is executed to determine whether the voltage of the terminal of the wired charging and discharging unit 10 is greater than the first preset voltage value, and if yes, step S5 is executed to execute the wired output current limiting step. If the voltage of the wiring terminal of the wired charging and discharging unit 10 is determined to be smaller than the first preset voltage value, the current limiting value of the wired input/output port is directly set as the preset current limiting value, and the wireless charging energy transmission stage is started.
As shown in fig. 3, the wired output current limiting step specifically includes: step S21, closing all wired input/output ports of the wired charging/discharging unit 10; step S22, the quick charging function of the wireless charging unit 20 and the wired input/output port is turned off at the same time; step S23, reducing the restriction value of the wired input/output port to a preset restriction value; step S24, enable the fast charging function of the wired input/output port, and re-detect each wired input/output port.
Then, step S6 is executed to enter a wireless charging energy transmission phase, and perform wireless power transmission on the wireless charging receiving device 1 through the charging transmitting terminal of the wireless charging unit 20.
When the wireless charging unit 20 is in the idle state, the current system enters the state detection mode again, performs state detection on the entire charging system, and restarts the wireless charging unit 20 after the detection is completed.
In step S1, when the current system enters the state detection mode, it is determined whether the wired input/output port restoration current limit flag is set, and if the determination result is yes and the wireless charging unit 20 is in the idle state, the current limit value of the wired input/output port is restored to the original current limit value.
Then, the charge-discharge state transition of the system is detected, when the system is detected to be converted from the charge state to the discharge state or from the discharge state to the charge state, the wireless charging unit 20 is turned off, and the wireless charging unit 20 is located to delay the start flag.
Then, the overcurrent and undervoltage states of the wireless charging unit 20 are detected, and when the overcurrent or undervoltage of the system is detected, the transmitting power of the charging transmitting terminal of the wireless charging unit 20 is reduced.
Then, the voltage of the connection terminal of the wired charging and discharging unit 10 is detected, and when the current connection terminal voltage and the initial connection terminal voltage change value exceed a third voltage preset value, the wireless charging unit 20 is turned off, and the wireless charging unit 20 is located to delay the start mark.
And then, detecting the load state of the wired input/output ports and adjusting the voltage of the wiring terminals, and when all the wired input/output ports are in light load, closing all the wired input/output ports and adjusting the voltage of the wiring terminals to a fourth preset voltage value.
Then, it is determined whether the delay start flag of the wireless charging unit 20 is set and the delay time exceeds a preset time value, and if the determination result is yes, the wireless charging unit 20 is restarted.
When the wired charging and receiving device is charged, first, steps S11 and S12 are performed to detect whether the wired charging and receiving device is inserted, and when it is detected that the wired charging and receiving device is inserted, step S13 is performed to turn off the wireless charging unit 20 while adjusting the voltage of the connection terminal to a second preset voltage value.
Then, step S14 is executed to restart the wireless charging unit 20 for a predetermined time.
Then, step S15 is executed while charging the wireless charging reception device 1 and the wired charging reception device.
It can be seen that when the wired charging receiving device is detected to be inserted, the wireless charging unit 20 is closed in the interrupt processing program, the delay start flag of the wireless charging unit 20 is set, the voltage of the connection terminal is adjusted to the second preset voltage value, and meanwhile, the wireless charging receiving device 1 and the wired charging receiving device are charged.
In practical application, after a charging system is started, the system is initialized, and the initialization process includes initializing a system clock, initializing electric quantity display and acquiring user configuration. Then, the wired charging and discharging unit 10 is initialized, including the enabling key shutdown function and the light load shutdown function. Then, the wireless charging unit 20 is initialized, including saving the default output current limiting value of the wired port, initializing the PWM driving circuit 21, and initializing the wireless signal decoding module. Finally, the system enters a state detection mode loop.
After the system enters the state detection mode cycle, the wireless charging unit 20 detects whether the wireless charging receiving device 1 is placed. If the device is detected to be put in, the system enters a system output current limiting mode, namely whether the VSYS terminal voltage of the wired charging and discharging unit 10 is larger than 6V and whether the total system output power is larger than 10W is judged, if so, all wired input and output ports are closed, meanwhile, the quick charging functions of the wireless charging unit 20 and the wired input and output ports are closed, the current limiting value of the wired input and output ports is reduced to half of the original value, then the quick charging function of the wired input and output ports is enabled, and finally, each wired input and output port is detected again. And if the VSYS terminal voltage of the wired charging and discharging unit 10 is less than 6V and the total output power of the system is less than 10W, directly setting the wired output current limit to be half of the original value, and entering a wireless charging energy transmission stage.
And when the wireless charging unit 20 cannot detect the wireless charging receiving equipment 1, setting and recovering the wired input/output port current limiting mark.
And then, judging whether a recovery wired input/output port current limiting flag is set or not, and if so, recovering the wired input/output port current limiting if the wireless charging unit 20 is in an idle state.
And then, detecting whether the charging and discharging states of the system are converted or not, if so, turning off the wireless charging unit 20, and setting a delay starting flag of the wireless charging unit 20.
Then, whether the wireless charging unit 20 is over-current or under-voltage is detected, and if so, the transmitting power of the wireless charging unit 20 is reduced.
Next, the VSYS voltage is detected, and if the current VSYS voltage and the initial VSYS voltage change by more than 1.5V, the wireless charging unit 20 is turned off, and the delay start flag of the wireless charging unit 20 is set.
Next, the status of the wired input/output ports is detected, and if both are in the light load state and the wireless charging unit 20 is operating in the non-fast charging state, all the wired input/output ports are closed and the VSYS voltage is adjusted to 9V.
And finally, judging whether the delay starting flag of the wireless charging unit 20 is set and the delay time exceeds 3 seconds, and if so, restarting the wireless charging unit 20.
As shown in fig. 4, when the wired input/output port detects the insertion of a device, an interrupt handler is entered, in which the wireless charging unit 20 is turned off, and the VSYS voltage is adjusted to 5V by hardware.
Therefore, the charging method provided by the invention can solve the problem that a mobile power supply cannot realize the wired and wireless quick charging of two intelligent devices at the same time, does not occupy the original output port of a system, adapts to the trend of the current quick charging technology, meets the requirement that one mobile power supply simultaneously and quickly charges a plurality of devices, can bring better user experience, can accelerate the charging speed of the electric devices, greatly optimizes the charging efficiency, thereby improving the charging efficiency and shortening the charging time.
It should be noted that the above is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept also fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a charging system for portable power source, includes wired charge-discharge unit, wireless charging unit and power supply unit, its characterized in that:
the wireless charging unit comprises a wireless power supply control module connected with a wiring terminal of the wired charging and discharging unit and a charging transmitting terminal connected with the wireless power supply control module, and the wireless power supply control module receives a power supply signal transmitted by the wired charging and discharging unit through the wiring terminal and transmits wireless electric energy to the wireless charging and receiving equipment through the charging transmitting terminal;
wired charge and discharge unit be equipped with the power connection end that power supply unit connects, with wired input/output port that the receiving arrangement is connected that fills, with the DC/DC module that wired input/output port is connected for direct current transmission under the wired mode and pass through binding post to wireless charging unit transmission electric energy, wherein, binding post does DC/DC module's the output terminal that steps up.
2. The charging system according to claim 1, wherein:
the wireless power supply control module comprises a PWM driving circuit, an H-bridge resonant circuit, a half-wave rectifying circuit, a high-low pass filter circuit, a signal amplifying circuit and a decoding circuit, the PWM driving circuit receives a charging request signal sent by wireless charging receiving equipment, the PWM driving circuit outputs a driving signal to the H-bridge resonant circuit, the H-bridge resonant circuit outputs a resonant signal to the half-wave rectifying circuit, the half-wave rectifying circuit outputs a half-wave rectifying signal to the high-low pass filter circuit, the high-low pass filter circuit outputs a filter signal to the signal amplifying circuit, the signal amplifying circuit outputs an amplified signal to the decoding circuit, the decoding circuit decodes the received amplified signal to generate a data communication signal of the wireless charging and receiving equipment, and outputting electric energy to the wireless charging receiving equipment through the charging transmitting terminal according to the data communication signal.
3. The charging system according to claim 1 or 2, characterized in that:
the DC/DC module comprises an MCU control circuit, a boost circuit and a voltage reduction circuit, wherein the MCU control circuit is respectively electrically connected with the boost circuit and the voltage reduction circuit, and the boost output terminal is a VSYS output terminal of the boost circuit.
4. The charging system according to claim 1 or 2, characterized in that:
the wired input and output port comprises a Micro-B input port, a Type-C input and output port and two Type-A output ports, and the Micro-B input port, the Type-C input and output port, the Type-A output port and the DC/DC module are connected with switch tubes respectively.
5. A charging method applied to a charging system of a mobile power supply, which is applied to the charging system of the mobile power supply according to any one of claims 1 to 4, characterized in that the method comprises:
after the current system is determined to be in a state detection mode, whether wireless charging receiving equipment is put in is detected, if yes, the system enters a system output current limiting mode, whether the voltage of a wiring terminal of a wired charging and discharging unit is larger than a first preset voltage value is judged, if yes, a wired output current limiting step is executed, the wireless charging energy transmission stage is started, and wireless electric energy transmission is carried out on the wireless charging receiving equipment through a charging transmitting terminal of a wireless charging unit;
when the wired charging receiving device is detected to be inserted, the wireless charging unit is closed, meanwhile, the voltage of the wiring terminal is adjusted to a second preset voltage value, the wireless charging unit is restarted within preset time, and meanwhile, the wireless charging receiving device and the wired charging receiving device are charged.
6. The charging method according to claim 5, characterized in that:
the wired output current limiting step specifically comprises: all wired input and output ports of the wired charging and discharging unit are closed to output, and meanwhile, the quick charging functions of the wireless charging unit and the wired input and output ports are closed;
and after the current limiting value of the wired input/output port is reduced to the preset current limiting value, the quick charging function of the wired input/output port is enabled, and each wired input/output port is detected again.
7. The charging method according to claim 6, characterized in that:
and if the voltage of the wiring terminal of the wired charging and discharging unit is determined to be smaller than a first preset voltage value, directly setting the current limiting value of the wired input/output port as a preset current limiting value, and entering a wireless charging energy transmission stage.
8. The charging method according to claim 5, characterized in that:
and when the wireless charging unit is in an idle state, the current system enters a state detection mode again, the state of the whole charging system is detected, and the wireless charging unit is restarted after the detection is finished.
9. The charging method according to claim 8, characterized in that:
when the current system enters a state detection mode, judging whether a recovery current limiting flag of the wired input/output port is set, and if the judgment result is yes and the wireless charging unit is in an idle state, recovering the current limiting value of the wired input/output port to the original current limiting value;
detecting the charge-discharge state conversion of the system, and when detecting that the system is converted from the charge state to the discharge state or from the discharge state to the charge state, closing the wireless charging unit and positioning a delay starting mark of the wireless charging unit;
detecting the overcurrent and undervoltage states of the wireless charging unit, and reducing the transmitting power of a charging transmitting end of the wireless charging unit when detecting the overcurrent or undervoltage of the system;
detecting the voltage of a wiring terminal of the wired charging and discharging unit, and when the voltage change value of the current wiring terminal and the voltage change value of the initial wiring terminal exceed a third voltage preset value, closing the wireless charging unit and positioning a delay start mark of the wireless charging unit;
detecting the load state of the wired input/output ports and adjusting the voltage of the wiring terminals, and when all the wired input/output ports are in light load, closing all the wired input/output ports and adjusting the voltage of the wiring terminals to a fourth preset voltage value;
and judging whether the delay starting mark of the wireless charging unit is set and whether the delay time exceeds a preset time value, and if so, restarting the wireless charging unit.
10. The charging method according to claim 9, characterized in that:
when the wired charging receiving device is detected to be inserted, the wireless charging unit is closed in the interrupt processing program, the delay starting mark of the wireless charging unit is located, meanwhile, the voltage of the wiring terminal is adjusted to a second preset voltage value, and meanwhile, the wireless charging receiving device and the wired charging receiving device are charged.
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| CN201911234964.1A CN110854963A (en) | 2019-12-05 | 2019-12-05 | Charging system and method applied to mobile power supply |
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| CN201911234964.1A CN110854963A (en) | 2019-12-05 | 2019-12-05 | Charging system and method applied to mobile power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112994164A (en) * | 2021-03-16 | 2021-06-18 | 深圳爱科思达科技有限公司 | Vehicle-mounted charger |
| CN117318245A (en) * | 2023-11-06 | 2023-12-29 | 深圳市易湘瑞科技有限公司 | Charging control method and device for mobile power supply, electronic equipment and storage medium |
-
2019
- 2019-12-05 CN CN201911234964.1A patent/CN110854963A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112994164A (en) * | 2021-03-16 | 2021-06-18 | 深圳爱科思达科技有限公司 | Vehicle-mounted charger |
| CN112994164B (en) * | 2021-03-16 | 2022-05-13 | 深圳爱科思达科技有限公司 | Vehicle-mounted charger |
| CN117318245A (en) * | 2023-11-06 | 2023-12-29 | 深圳市易湘瑞科技有限公司 | Charging control method and device for mobile power supply, electronic equipment and storage medium |
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