CN114498961A - Method for reducing static power consumption of transmitting terminal of wireless charging system and transmitting terminal - Google Patents
Method for reducing static power consumption of transmitting terminal of wireless charging system and transmitting terminal Download PDFInfo
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- CN114498961A CN114498961A CN202210386917.4A CN202210386917A CN114498961A CN 114498961 A CN114498961 A CN 114498961A CN 202210386917 A CN202210386917 A CN 202210386917A CN 114498961 A CN114498961 A CN 114498961A
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- wireless charging
- charging system
- transmitting terminal
- mcu
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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
- H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
Abstract
The invention provides a method for reducing static power consumption of a transmitting terminal of a wireless charging system and the transmitting terminal, wherein the method comprises the following steps: the transmitting terminal of the wireless charging system is periodically in a standby mode and a sleep mode in a standby state. The invention can obviously reduce the static power consumption of the transmitting terminal on the basis of ensuring the original function and performance of the transmitting terminal of the wireless charging system.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a method for reducing static power consumption of a transmitting terminal of a wireless charging system and the transmitting terminal.
Background
In recent years, wireless charging technology is more and more widely applied, and application scenes are more and more from consumer electronics to automotive electronics to the aviation field, and product forms are more and more abundant. Some application scenarios have a particularly high requirement on the static power consumption of the wireless charging transmitting terminal, and particularly in application scenarios with battery energy storage, such as a notebook computer, a charger, and the like, the wireless charging transmitting terminal is required to have extremely low static power consumption, so that the consumption of the battery power is reduced.
At present, the reduction of the static power consumption of a wireless charging transmitting terminal under a standby condition is a problem that the application of wireless charging to a low-power-consumption system is urgently needed to solve. Secondly, with the increasing scale of the wireless charging market, reducing the static power consumption of the product has great significance for energy conservation and emission reduction.
Disclosure of Invention
The present invention provides a method for reducing static power consumption of a transmitting terminal of a wireless charging system and a transmitting terminal thereof, so as to solve the above existing problems.
The invention provides a method for reducing static power consumption of a transmitting terminal of a wireless charging system, which comprises the following steps:
the transmitting terminal of the wireless charging system is periodically in a standby mode and a sleep mode in a standby state.
In some embodiments, the method of periodically putting a transmitting end of a wireless charging system in a standby mode and a sleep mode in a standby state includes:
setting the period of the transmitting terminal of the wireless charging system in the standby mode and the sleep mode periodically in the standby state as T, T = T1+ T2; wherein T1 represents a standby time when the transmitting end of the wireless charging system is in a standby mode, and T2 represents a sleep time when the transmitting end of the wireless charging system is in a sleep mode;
during the standby time T1 when the transmitting end of the wireless charging system is in the standby mode, the wireless charging system detects whether there is a wireless charging receiving end or a foreign object:
if the wireless charging receiving end or the foreign object does not exist, entering a sleep mode after the standby time T1 is over; after the sleep time T2 of the transmitting terminal of the wireless charging system in the sleep mode is over, waking up the transmitting terminal of the wireless charging system and re-entering the standby mode;
and if the wireless charging receiving end or the foreign matter exists, the transmitting end of the wireless charging system jumps out of the standby state and enters a normal operation state.
In some embodiments, the waking up of the transmitting end of the wireless charging system is implemented in software.
Further, the method for waking up the transmitting terminal of the wireless charging system by adopting software comprises the following steps:
the timer with the time T2 is set inside the MCU of the wireless charging system, when the transmitting terminal of the wireless charging system is in a sleep mode, the MCU starts the internal timer, and the transmitting terminal of the wireless charging system is awakened by the interruption of the internal timer of the MCU.
In some embodiments, waking up the transmitting end of the wireless charging system is implemented using an RC wake-up circuit.
The first scheme of waking up the transmitting terminal of the wireless charging system by adopting the RC wake-up circuit is as follows:
when the MCU of the wireless charging system is an MCU wakened up by low level, the RC wakening-up circuit comprises a resistor R11, a resistor R12 and a capacitor C1; a GPIO port of the MCU is connected with one end of a resistor R11; the other end of the resistor R11 is grounded through a resistor R12 and a capacitor C respectively.
Further, the working method of the RC wake-up circuit is as follows:
when the transmitting end of the wireless charging system is in a standby mode, the GPIO port of the MCU is configured to be output at a high level, the capacitor C1 is charged through the resistor R11, meanwhile, the capacitor C1 is discharged through the resistor R12, and before the transmitting end of the wireless charging system enters a sleep mode, the voltage of the capacitor C1 is charged from VL to Vc1 and is kept unchanged; VL is a residual voltage of the GPIO port configured to output a capacitor C1 at a high level, Vc1= Vo × R12/(R11+ R12), and Vo is an output voltage of the GPIO port;
when the transmitting end of the wireless charging system enters a sleep mode, the GPIO port of the MCU is configured to be input, the GPIO port is in a high-impedance state at the moment, the capacitor C1 discharges through the resistor R12, and when the voltage of the capacitor C is lower than a low-voltage threshold Vth1 awakened by the GPIO port of the MCU, the MCU is awakened, so that the transmitting end of the wireless charging system enters a standby mode.
The scheme II for waking up the transmitting terminal of the wireless charging system by adopting the RC wake-up circuit is as follows:
when the MCU of the wireless charging system is an MCU awakened by high level, the RC awakening circuit comprises a resistor R21, a resistor R22 and a capacitor C2; the GPIO port of the MCU is connected with one end of a resistor R21; the other end of the resistor R21 is connected to the power supply terminal VCC through a resistor R22, and to ground through a capacitor C2.
Further, the working method of the RC wake-up circuit is as follows:
when the transmitting end of the wireless charging system is in a standby mode, the GPIO port of the MCU is configured to be output at a low level, at the moment, the power supply end VCC charges the capacitor C2 through the resistor R22, the capacitor C2 discharges the resistor R21, and before the transmitting end of the wireless charging system enters the sleep mode, the voltage of the capacitor C2 is discharged to Vc2 and keeps unchanged; wherein Vc2= VCC R21/(R21+ R22);
when the transmitting end of the wireless charging system enters a sleep mode, the GPIO port of the MCU is configured to be input, the GPIO port is in a high-impedance state at the moment, the power supply end VCC charges the capacitor C2 through the resistor R22, and when the voltage of the capacitor C2 reaches a high-voltage threshold Vth2 awakened by the GPIO port of the MCU, the MCU is awakened, so that the transmitting end of the wireless charging system enters a standby mode.
The invention also provides a transmitting terminal of the wireless charging system, and the transmitting terminal of the wireless charging system works by adopting the method for reducing the static power consumption of the transmitting terminal of the wireless charging system.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the invention can obviously reduce the static power consumption of the transmitting terminal on the basis of ensuring the original function and performance of the transmitting terminal of the wireless charging system.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram of a method for reducing static power consumption of a transmitting terminal of a wireless charging system in embodiment 1 of the present invention.
Fig. 2 is a flowchart of a method for reducing static power consumption of a transmitting terminal of a wireless charging system by using software in embodiment 2 of the present invention.
Fig. 3a is a schematic diagram of a working principle in a standby mode in a first scheme when an RC wake-up circuit is used to implement a method for reducing static power consumption of a transmitting terminal of a wireless charging system in embodiment 2 of the present invention.
Fig. 3b is a schematic diagram of voltage variation of the capacitor C1 in a standby mode in the first scheme when the RC wake-up circuit is used to implement the method for reducing static power consumption of the transmitting terminal of the wireless charging system in embodiment 2 of the present invention.
Fig. 4a is a schematic diagram of a working principle in a sleep mode in a first scheme when an RC wake-up circuit is used to implement a method for reducing static power consumption of a transmitting terminal of a wireless charging system in embodiment 2 of the present invention.
Fig. 4b is a schematic diagram of voltage variation of the capacitor C1 in the sleep mode in the first scheme when the RC wake-up circuit is used to implement the method for reducing static power consumption of the transmitting terminal of the wireless charging system in embodiment 2 of the present invention.
Fig. 5a is a schematic diagram of a working principle in a standby mode in a second scheme when an RC wake-up circuit is used to implement a method for reducing static power consumption of a transmitting terminal of a wireless charging system in embodiment 2 of the present invention.
Fig. 5b is a schematic diagram of voltage variation of the capacitor C2 in the standby mode in the second scheme when the RC wake-up circuit is used to implement the method for reducing the static power consumption of the transmitting terminal of the wireless charging system in embodiment 2 of the present invention.
Fig. 6a is a schematic diagram of a working principle in a sleep mode in a second scheme when an RC wake-up circuit is used to implement a method for reducing static power consumption of a transmitting terminal of a wireless charging system in embodiment 2 of the present invention.
Fig. 6b is a schematic diagram of voltage variation of the capacitor C2 in the sleep mode in the second scheme when the RC wake-up circuit is used to implement the method for reducing the static power consumption of the transmitting terminal of the wireless charging system in embodiment 2 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The general idea of the method for reducing the static power consumption of the transmitting terminal of the wireless charging system provided by the invention is as follows:
the transmitting terminal of the wireless charging system is periodically in a standby mode and a sleep mode in a standby state.
Example 1
As shown in fig. 1, in the present embodiment, the method for periodically putting the transmitting terminal of the wireless charging system in the standby mode and the sleep mode in the standby state includes:
setting the period of the transmitting terminal of the wireless charging system in the standby mode and the sleep mode periodically in the standby state as T, T = T1+ T2; wherein T1 represents a standby time when the transmitting end of the wireless charging system is in a standby mode, and T2 represents a sleep time when the transmitting end of the wireless charging system is in a sleep mode;
during the standby time T1 when the transmitting end of the wireless charging system is in the standby mode, the wireless charging system detects whether there is a wireless charging receiving end or a foreign object:
if the wireless charging receiving end or the foreign object does not exist, the wireless charging receiving end or the foreign object enters a sleep mode after the standby time T1 is over, and the power consumption is extremely low in the sleep mode; after the sleep time T2 of the transmitting terminal of the wireless charging system in the sleep mode is over, waking up the transmitting terminal of the wireless charging system and re-entering the standby mode;
and if the wireless charging receiving end or the foreign matter exists, the transmitting end of the wireless charging system jumps out of the standby state and enters a normal operation state.
Example 2
In this embodiment, software is used to wake up the transmitting terminal of the wireless charging system. As shown in fig. 2, during the standby time T1 when the transmitting end of the wireless charging system is in the standby mode, the wireless charging system detects whether there is a wireless charging receiving end or a foreign object: if the wireless charging receiving end or the foreign matter exists, the transmitting end of the wireless charging system jumps out of the standby state and enters a normal operation state; if the wireless charging receiving end or the foreign object does not exist, the wireless charging receiving end or the foreign object enters a sleep mode after the standby time T1 is over, and the power consumption is extremely low in the sleep mode; the timer with the time T2 is set inside the MCU of the wireless charging system, when the transmitting terminal of the wireless charging system is in the sleep mode, the MCU starts the internal timer, the transmitting terminal of the wireless charging system is awakened by the interruption of the internal timer of the MCU, and the wireless charging system enters the standby mode again.
Example 3
In this embodiment, the RC wake-up circuit is used to wake up the transmitting terminal of the wireless charging system. The RC wake-up circuit has the following two schemes.
The first scheme is as follows:
when the MCU of the wireless charging system is an MCU woken up by a low level, as shown in fig. 3a, the RC wake-up circuit includes a resistor R11, a resistor R12, and a capacitor C1; the GPIO port of the MCU is connected with one end of a resistor R11; the other end of the resistor R11 is grounded through a resistor R12 and a capacitor C.
At this time, the working method of the RC wake-up circuit is as follows:
when the transmitting terminal of the wireless charging system is in a standby mode, the GPIO port of the MCU is configured to output a high level, and the capacitor C1 is charged through the resistor R11, and the capacitor C1 is discharged through the resistor R12, so that the voltage of the capacitor C1 is charged from VL to Vc1 and remains unchanged before the transmitting terminal of the wireless charging system enters a sleep mode, as shown in fig. 3 b; VL is a residual voltage of the capacitor C1 at the time when the GPIO port is configured to output a high level, Vc1= Vo × R12/(R11+ R12), and Vo is an output voltage of the GPIO port;
when the transmitting terminal of the wireless charging system enters the sleep mode, as shown in fig. 4a, the GPIO port of the MCU is configured as an input, and at this time, the GPIO port is in a high impedance state, the capacitor C1 discharges through the resistor R12, and when the voltage of the capacitor C is lower than the low voltage threshold Vth1 for waking up by the GPIO port of the MCU, the MCU is woken up, so that the transmitting terminal of the wireless charging system enters the standby mode. As shown in fig. 4b, the shaded portion is a value range of the residual voltage of the capacitor C1 configured to output a high level at the time t1 after the GPIO port enters the standby mode, and the value is determined by the time when the GPIO port is configured to output a high level.
Scheme II:
when the MCU of the wireless charging system is an MCU woken up at a high level, as shown in fig. 5a, the RC wake-up circuit includes a resistor R21, a resistor R22, and a capacitor C2; the GPIO port of the MCU is connected with one end of a resistor R21; the other end of the resistor R21 is connected to the power supply terminal VCC through a resistor R22, and to ground through a capacitor C2.
The working method of the RC wake-up circuit comprises the following steps:
when the transmitting terminal of the wireless charging system is in the standby mode, the GPIO port of the MCU is configured to output at a low level, and at this time, the power supply terminal VCC charges the capacitor C2 through the resistor R22, and simultaneously the capacitor C2 discharges to the resistor R21, and before the transmitting terminal of the wireless charging system enters the sleep mode, the voltage of the capacitor C2 is discharged to Vc2 and remains unchanged, as shown in fig. 5 b; wherein Vc2= VCC R21/(R21+ R22);
when the transmitting terminal of the wireless charging system enters the sleep mode, as shown in fig. 6a, the GPIO port of the MCU is configured as an input, and at this time, the GPIO port is in a high impedance state (the current flowing through the resistor R11 is approximately 0), the power supply terminal VCC charges the capacitor C2 through the resistor R22, and when the voltage of the capacitor C2 reaches the high voltage threshold Vth2 for waking up by the GPIO port of the MCU, the MCU is woken up, so that the transmitting terminal of the wireless charging system enters the standby mode. As shown in fig. 6b, the shaded portion is a voltage value range of the capacitor C1 configured by the GPIO port after the transmitting terminal of the wireless charging system is woken up to output a low level time t 2.
Example 4
In this embodiment, a transmitting terminal of a wireless charging system is implemented, where the transmitting terminal of the wireless charging system operates by using the method for reducing the static power consumption of the transmitting terminal of the wireless charging system according to embodiment 1, embodiment 2, and/or embodiment 3.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A method for reducing static power consumption of a transmitting terminal of a wireless charging system, the method comprising:
the method comprises the steps of enabling a transmitting terminal of the wireless charging system to be in a standby mode and a sleep mode periodically in a standby state;
the method for enabling the transmitting terminal of the wireless charging system to be in the standby mode and the sleep mode periodically in the standby state comprises the following steps:
setting the period of the transmitting terminal of the wireless charging system in the standby mode and the sleep mode periodically in the standby state as T, T = T1+ T2; wherein T1 represents a standby time when the transmitting end of the wireless charging system is in a standby mode, and T2 represents a sleep time when the transmitting end of the wireless charging system is in a sleep mode;
during the standby time T1 when the transmitting end of the wireless charging system is in the standby mode, the wireless charging system detects whether there is a wireless charging receiving end or a foreign object:
if the wireless charging receiving end or the foreign object does not exist, entering a sleep mode after the standby time T1 is over; after the sleep time T2 of the transmitting terminal of the wireless charging system in the sleep mode is over, waking up the transmitting terminal of the wireless charging system and re-entering the standby mode;
and if the wireless charging receiving end or the foreign matter exists, the transmitting end of the wireless charging system jumps out of the standby state and enters a normal operation state.
2. The method of claim 1, wherein waking up the transmitting end of the wireless charging system is implemented using software.
3. The method for reducing the static power consumption of the transmitting terminal of the wireless charging system according to claim 2, wherein the method for waking up the transmitting terminal of the wireless charging system by using software comprises the following steps:
the timer with the time T2 is set inside the MCU of the wireless charging system, when the transmitting terminal of the wireless charging system is in a sleep mode, the MCU starts the internal timer, and the transmitting terminal of the wireless charging system is awakened by the interruption of the internal timer of the MCU.
4. The method of claim 2, wherein the waking up of the transmitting terminal of the wireless charging system is implemented by using an RC wake-up circuit.
5. The method of claim 4, wherein when the MCU of the wireless charging system is a low-level wake-up MCU, the RC wake-up circuit comprises a resistor R11, a resistor R12, and a capacitor C1; the GPIO port of the MCU is connected with one end of a resistor R11; the other end of the resistor R11 is grounded through a resistor R12 and a capacitor C.
6. The method for reducing the static power consumption of the transmitting terminal of the wireless charging system according to claim 5, wherein the working method of the RC wake-up circuit is as follows:
when the transmitting end of the wireless charging system is in a standby mode, the GPIO port of the MCU is configured to be output at a high level, the capacitor C1 is charged through the resistor R11, meanwhile, the capacitor C1 is discharged through the resistor R12, and before the transmitting end of the wireless charging system enters a sleep mode, the voltage of the capacitor C1 is charged from VL to Vc1 and is kept unchanged; VL is a residual voltage of the capacitor C1 at the time when the GPIO port is configured to output a high level, Vc1= Vo × R12/(R11+ R12), and Vo is an output voltage of the GPIO port;
when the transmitting end of the wireless charging system enters a sleep mode, the GPIO port of the MCU is configured to be input, the GPIO port is in a high-impedance state at the moment, the capacitor C1 discharges through the resistor R12, and when the voltage of the capacitor C is lower than a low-voltage threshold Vth1 awakened by the GPIO port of the MCU, the MCU is awakened, so that the transmitting end of the wireless charging system enters a standby mode.
7. The method of claim 4, wherein when the MCU of the wireless charging system is a high-level wake-up MCU, the RC wake-up circuit comprises a resistor R21, a resistor R22, and a capacitor C2; the GPIO port of the MCU is connected with one end of a resistor R21; the other end of the resistor R21 is connected to the power supply terminal VCC through a resistor R22, and to ground through a capacitor C2.
8. The method for reducing the static power consumption of the transmitting terminal of the wireless charging system according to claim 4, wherein the working method of the RC wake-up circuit is as follows:
when the transmitting end of the wireless charging system is in a standby mode, the GPIO port of the MCU is configured to be output at a low level, at the moment, the power supply end VCC charges the capacitor C2 through the resistor R22, the capacitor C2 discharges the resistor R21, and before the transmitting end of the wireless charging system enters the sleep mode, the voltage of the capacitor C2 is discharged to Vc2 and keeps unchanged; wherein Vc2= VCC R21/(R21+ R22);
when the transmitting end of the wireless charging system enters a sleep mode, the GPIO port of the MCU is configured to be input, the GPIO port is in a high-impedance state at the moment, the power supply end VCC charges the capacitor C2 through the resistor R22, and when the voltage of the capacitor C2 reaches a high-voltage threshold Vth2 awakened by the GPIO port of the MCU, the MCU is awakened, so that the transmitting end of the wireless charging system enters a standby mode.
9. A wireless charging system transmitting terminal, wherein the wireless charging system transmitting terminal operates by the method for reducing the static power consumption of the wireless charging system transmitting terminal according to any one of claims 1 to 8.
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| CN202210386917.4A CN114498961A (en) | 2022-04-14 | 2022-04-14 | Method for reducing static power consumption of transmitting terminal of wireless charging system and transmitting terminal |
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| CN202210386917.4A CN114498961A (en) | 2022-04-14 | 2022-04-14 | Method for reducing static power consumption of transmitting terminal of wireless charging system and transmitting terminal |
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| CN101223695A (en) * | 2005-07-13 | 2008-07-16 | Sca卫生产品股份公司 | Sensor device of automatic allocation machine |
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