Charger and power distribution method of charger

Abstract

The invention discloses a charger and a power distribution method of the charger. The charger comprises at least two output interfaces, a power supply circuit and a processing circuit. The at least two output interfaces are used for connecting and inserting charging cables; the power supply circuit is electrically connected with the output interface; the processing circuit is electrically connected with the power supply circuit to obtain interface state information of the at least two output interfaces; wherein the processing circuit determines the interface state of the output interface at least plugged with the charging cable according to the interface state information of each output interface, and the processing circuit sets matched power for the output interface at least plugged with the charging cable according to the interface state; the maximum value that the power of each output interface can be set is the maximum rated output power of the power supply circuit. Through the above mode, the power of the plurality of output interfaces can be flexibly allocated, the charging efficiency of the charger is improved, and the intelligence of the charger is realized.

Description

Technical Field

[0001] The present application relates to the technical field of charging equipment, and in particular to a charger and a power distribution method of the charger. Background Art

[0002] With the development of science and technology, people's lives are increasingly dependent on smart devices such as mobile phones, computers, and tablets. Therefore, end users' demand for the charging and battery life of smart devices is increasing. Multi-interface chargers that support simultaneous charging of multiple devices have become a rigid demand.

[0003] However, in current multi-port chargers, the maximum output power of each output interface is usually fixedly allocated. Therefore, during use, if one interface of the charger is connected to a charging cable but not to an electrical device, and other interfaces are connected to electrical devices for charging, the maximum output power of the interface connected to the electrical device is still the original fixedly allocated maximum output power, and the interface not connected to the charging device will occupy the output power of the charger, which will result in lower charging efficiency of the multi-port charger. Summary of the invention

[0004] The embodiments of the present application provide a charger and a power allocation method for the charger, which can flexibly adjust the maximum output power of multiple output interfaces, improve the charging efficiency of the charger, and improve the intelligence of the charger.

[0005] In a first aspect, an embodiment of the present application provides a charger, the charger comprising:

[0006] At least two output interfaces for charging cables;

[0007] A power supply circuit, electrically connected to the output interface;

[0008] A processing circuit is electrically connected to the power supply circuit, and the processing circuit obtains interface status information of at least two output interfaces;

[0009] Among them, the processing circuit determines the interface status of at least the output interface to which the charging cable is plugged according to the interface status information of each output interface, and the processing circuit sets a matching power for at least the output interface to which the charging cable is plugged according to the interface status; the maximum value to which the power of each output interface can be set is the maximum rated output power of the power supply circuit.

[0010] In a second aspect, an embodiment of the present application provides a power distribution method of a charger, wherein the charger is the above charger, and the method includes:

[0011] Obtain interface status information of at least two output interfaces;

[0012] Determining the interface status of at least two charging interfaces according to the interface status information of each output interface;

[0013] A matching power is set for each output interface according to the interface status of at least two output interfaces; wherein the power of each output interface can be a set maximum value as the maximum rated output power of the power supply circuit.

[0014] The beneficial effects of the present application are as follows: Different from the prior art, the present application sets a processing circuit in the charger, and uses the processing circuit to obtain the interface status information of each output interface and judge the interface status of at least the output interface plugged with the charging cable, and sets a matching power for each output interface according to the interface status of at least the output interface plugged with the charging cable, so that the power of the output interface can be increased to the maximum actual output power of the charger to supply power to the power-consuming device, so that the charging process of the charger is more intelligent, so that the charger can flexibly allocate power according to the interface status of the output interface during use, thereby realizing the automatic allocation of the current power of multiple output interfaces of the charger. Moreover, the maximum value of the power of each output interface can be set to the maximum rated output power of the power supply circuit, so that in some cases, the output interface connected to the power-consuming device can charge the power-consuming device to the maximum extent, thereby improving the charging efficiency of the charger. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic block diagram of a circuit structure of a charger embodiment of the present application;

[0016] Figure 2 It is a schematic diagram of a process step of an embodiment of a power distribution method of a charger of the present application;

[0017] Figure 3 It is another schematic diagram of the process steps of the embodiment of the power distribution method of the charger of the present application;

[0018] Figure 4 It is another schematic diagram of the process steps of an embodiment of the power distribution method of the charger of the present application;

[0019] Figure 5 This is another process step diagram of an embodiment of the power distribution method of the charger of the present application. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] The inventor of this application has found that in current multi-port output chargers, the maximum output power of each output interface is usually fixedly allocated. Therefore, if one interface of the charger is connected to a charging cable but not to an electric device, and other interfaces are connected to electric devices for charging, the maximum output power of the interface connected to the electric device is still the original fixedly allocated maximum output power, and the interface not connected to the electric device will occupy the output power of the charger, which leads to a low charging efficiency of the multi-port output charger. In order to solve the above problems, this application proposes the following embodiments.

[0022] The following is an exemplary description of the charger according to the charger embodiment.

[0023] like Figure 1 As shown, the charger 10 includes at least two output interfaces, a power supply circuit 120 and a processing circuit 130. At least two output interfaces are used for charging cables to be plugged in. The power supply circuit 120 is electrically connected to the output interfaces. The processing circuit 130 is electrically connected to the protocol circuit 120 and the power supply circuit 120, and the processing circuit 130 obtains interface status information of at least two output interfaces.

[0024] The power supply circuit 120 can be a power supply in the charger 10, or it can be a circuit connected to an external power supply. The power supply circuit 120 can supply power to the processing circuit 130 to support the operation of the processing circuit 130, and supply power to the inserted power-consuming device through the processing circuit 130 and at least two output interfaces. Optionally, the power supply circuit 120 may also include an AC-DC converter (AC / DC converter), and the power supply circuit 120 provides DC power to the protocol circuit 120 and the processing circuit 130 through the AC / DC converter, and each output interface can provide DC power to the power-consuming device through the charging cable, so that the charger 10 can charge the adapted power-consuming device.

[0025] In some embodiments, the processing circuit 130 may further include a processor 131 and at least two protocol chips 132, and the at least two protocol chips 132 may be electrically connected to the power supply circuit 120 and electrically connected to at least two output interfaces in a one-to-one correspondence. The processor 131 is electrically connected to the at least two protocol chips 132. The processor 131 obtains the interface status information of the corresponding output interface from each protocol chip 132, and controls the protocol chip 132 to set the corresponding power for the corresponding output interface.

[0026] Among them, the protocol chip 132 can be an integrated chip circuit, such as a USB PD (USB Power Delivery) charging protocol chip 132, a QC (Quick Charge) charging protocol chip 132, etc. The protocol chip 132 can control the actual output power of the corresponding output interface according to the charging protocol information. And the protocol chip 132 can be controlled by the processing circuit 130 to adjust the power of each output interface. Specifically, when at least two output interfaces have been plugged in and electrically connected to the power-consuming device, the protocol chip 132 shakes hands with the power-consuming device, and allocates corresponding output power to at least two output interfaces according to the charging protocol, so that the charger 10 can output corresponding current to the power-consuming device.

[0027] The processor 131 is an integrated circuit chip with data processing capability, for example, the processor 131 may be a microcontroller unit (MCU). The processor 131 may also include a general processor 131, a digital signal processor 131 (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0028] The processing circuit 130 determines the interface status of at least the output interface connected to the charging cable according to the interface status information of each output interface, and the processing circuit 130 sets a matching power for at least the output interface connected to the charging cable according to the interface status. The maximum value to which the power of each output interface can be set is the maximum rated output power of the power supply circuit 120.

[0029] Specifically, in this embodiment, the interface status of the output interface can reflect whether the output interface is charging the electrical device. The power set by the processing circuit can be the allocated power set by the output interface. Among them, the allocated power is not equivalent to the actual output power of the output interface. The allocated power can be the current maximum rated power corresponding to the output interface, and the actual output power of the output interface does not exceed its corresponding allocated power. In other words, in the actual use of the charger 10, the maximum actual output power that can be output by each output interface is the corresponding allocated power, and the allocated power of the output interface can be allocated in real time by the processing circuit 130 according to the interface status of each output interface.

[0030] Therefore, the charger 10 described in the present application can determine the usage of each output interface through the processing circuit 130, and can allocate the allocated power of at least the output interface connected to the charging cable according to the usage of each output interface in real time, and the allocated power of each output interface can be set to the maximum value as the maximum rated output power of the power supply circuit 120, so as to realize the automatic allocation of the maximum rated output power of multiple output interfaces, so that the output interface connected to the electrical device can charge the electrical device to the maximum extent, thereby improving the charging efficiency of the charger 10 and realizing the intelligence of the charger 10.

[0031] Of course, in other implementations, the power set by the processing circuit may also be the actual power of the output interface, and this application does not make any specific limitation here.

[0032] In some embodiments, the interface status information may reflect whether the interface status of the corresponding output interface is a valid charging state or an invalid charging state. The valid charging state may be characterized as a state in which the corresponding output interface is charging the power device. The invalid charging state may be characterized as a state in which the corresponding output interface is not charging the power device.

[0033] In some embodiments, the interface status information may include plug-in status information and charging status information. The processing circuit 130 may determine whether the output interface has been plugged in based on the plug-in status information. If the output interface has been plugged in, it is determined whether the output interface charges the device to be charged based on the charging status information. If the output interface charges the device to be charged, it is determined that the interface status of the output interface is a valid charging state. If the output interface is not plugged in or does not charge the device to be charged, it is determined that the interface status of the output interface is a non-valid charging state.

[0034] Optionally, the processor 131 obtains the plugging status information and protocol status information of the corresponding output interface from each protocol chip 132, and controls the protocol chip 132 to set the corresponding power for the corresponding output interface.

[0035] Among them, the plugging status information can indicate whether the output interface is connected to the power-consuming device. Specifically, the plugging status information can be divided into two types of status information: plugged in state and unplugged state. When the charging cable is connected to the output interface, the plugging status information is plugged in state, and when the output interface is not plugged in by the charging cable, the plugging status information is unplugged state.

[0036] For example, the plugging state information may be a level signal. When the electric device is plugged into the output interface, the electric device can pull down the level of the output interface, and the processing circuit 130 can further transmit current to the electric device through the output interface, and the processing circuit 130 can obtain the low level information of the output interface, and the processing circuit 130 can further determine that the plugging state information of the output interface is a plugged in state. Of course, in other implementations, the plugging state information may be other signals such as electrical signals and physical signals, which are not listed one by one in this implementation.

[0037] Optionally, after determining that a charging cable is plugged into the output interface, it is necessary to further determine whether an electric device is connected to the charging cable to access the output interface.

[0038] In some embodiments, the processing circuit 130 determines whether the output interface is connected to the charging cable based on the plugging status information of the output interface, and then determines whether the output interface is connected to the power-consuming device based on the charging status information of the output interface, thereby making the result confirmed by the processing circuit 130 more accurate and intuitive.

[0039] In some embodiments, the charging status information may include protocol status information and output electrical signals, and the processing circuit 130 determines whether there is a charging protocol for the output interface according to the protocol status information. If so, the interface status of the output interface is determined to be a valid charging state. If not, it is further determined whether the output electrical signal of the output interface is less than a preset signal threshold within a preset time length. If so, it is determined that the interface status of the output interface is in an ineffective charging state.

[0040] After the charging cable is inserted into the output interface and connected to some electrical devices, the charger 10 will output current to the output interface according to the charging protocol to supply power to the electrical devices. Therefore, if the output interface has a charging protocol, it means that the output interface is in a valid charging state. If the output interface is only plugged into the charging cable but not connected to the charging device, the charger 10 will not supply power to the charging cable according to the charging protocol. Therefore, if the output interface does not have a charging protocol, it means that the output interface is in an invalid charging state. Therefore, judging the charging state of the output interface according to the charging protocol can make the judgment result of the processing circuit 130 more accurate, and can also save other detection components and save the internal space of the charger 10.

[0041] However, other electrical devices may not shake hands with the charger 10 after being connected to the output interface, but directly obtain current through the charger 10. In this case, the charger 10 will not generate a charging protocol. Alternatively, some charging cables, such as C to Lighting cables, also have some circuit chips inside. Therefore, after the charging cable with circuit chips inside is inserted into the output interface, the output interface may also output current. Therefore, in order to distinguish these situations, after determining that the output interface has protocol status information, it is necessary to further process the output electrical signal of the output interface to further improve the accuracy of the processing circuit 130 in determining the interface status of the output interface.

[0042] Specifically, a preset signal threshold and a preset duration need to be set in advance, and the preset signal threshold can distinguish between the electrical device being charged and the charging cable with the circuit chip. The processing circuit 130 can compare the acquired output electrical signal with the preset signal threshold to determine whether the output electrical signal is less than the preset signal threshold within the preset duration. If not, it means that the charging cable is connected to the output interface instead of the electrical device being charged, so it can be determined that the interface state of the output interface is in the said ineffective charging state.

[0043] Optionally, when a charging cable with a circuit chip, such as a C to Lighting cable, is no-load (not connected to an electrical device for charging), a preset voltage value is determined by its no-load design voltage, and a preset current value is determined by its no-load design current. By setting the preset voltage value and the preset current value in this way, it is possible to accurately determine whether the charging cable plugged into the output interface is a charging cable with a circuit chip but not connected to an electrical device.

[0044] The output electrical signal represents the actual output power transmitted by the charger 10 to the connected charging cable or the electrical device. For example, the output electrical signal may include signal information such as output voltage, output current, output power, etc. The output electrical signals such as output voltage, output current, output power, etc. enable the processing circuit 130 to grasp the output status of the actual output power of each output interface in real time, so as to infer whether the output interface is connected to the electrical device to supply power to the electrical device, and further determine the working status of the output interface more accurately.

[0045] In some implementations, the processing circuit 130 may further include a signal detection circuit 133 that detects an output electrical signal of the output interface.

[0046] Alternatively, if Figure 1As shown, the charger 10 may further include at least two signal detection circuits 133, at least two signal detection circuits 133 are electrically connected to at least two output interfaces in a one-to-one correspondence, and at least two signal detection circuits 133 are electrically connected to the processing circuit 130. Each signal detection circuit 133 detects the output electrical signal of each output interface. The processing circuit 130 obtains the output electrical signal of each output interface.

[0047] Alternatively, if Figure 1 As shown, the signal detection circuit 133 may include an input terminal 1331, an output terminal 1332, a ground terminal 1333, and at least two detection resistors 1334, wherein the at least two detection resistors 1334 are connected in series between the input terminal 1331 and the ground terminal 1333. The ground terminal 1333 is grounded. The output terminal 1332 is electrically connected between two adjacent detection resistors 1334 and is electrically connected to the processing circuit 130.

[0048] The use of the signal detection circuit 133 can facilitate the processing circuit 130 to directly obtain the output electrical signal of the output interface, and can also make the obtained output electrical signal less susceptible to the influence of other circuits, thereby making the results of each output electrical signal more accurate and enabling the processing circuit 130 to more accurately grasp the specific conditions of each output interface.

[0049] And / or, the output electrical signal includes at least one of an output voltage and an output current, and the preset signal threshold value correspondingly includes at least one of a preset voltage value and a preset current value.

[0050] Optionally, the output electrical signal may include an output voltage and an output current, and the output voltage is judged in correspondence with a preset voltage value, and the output current is judged in correspondence with a preset voltage value. For example, the preset voltage value may be set to 7V, 6V, 5V, etc., the preset current value may be set to 5mA, 4mA, 3mA, and the preset duration may be 5min, 4min, 3min, etc.

[0051] Specifically, after determining that there is no charging status information on the output interface, the processing circuit 130 further obtains the output voltage and / or output current from the signal detection circuit 133, and compares the preset signal threshold corresponding to the output voltage and / or output current. If the output electrical signal output by the output interface is less than the preset signal threshold, it means that the output interface is connected to a charging cable with a circuit chip, and the output interface can be determined to be in an ineffective charging state. If the output electrical signal output by the output interface is greater than or equal to the preset signal threshold, it means that the charger 10 is charging the electrical device, and the output interface can be determined to be in an effective charging state.

[0052] For example, the preset voltage value can be set to 6V, etc., and the preset current value can be set to 5mA. If the output voltage is less than 6V, and / or the output current is less than 5mA, the output interface can be judged to be in an invalid charging state. Alternatively, the preset duration is set to 3 minutes, and the processing circuit 130 can record the duration of the output voltage of the output interface being continuously less than 6V and / or the output current being continuously less than 5mA. If the duration is greater than the preset duration of 3 minutes, the output interface can be judged to be in an invalid charging state. Such a setting can ensure that the processing circuit 130 will not misjudge the interface state of the output interface, so as to improve the accuracy of the determination result.

[0053] Furthermore, the processing circuit 130 sets a matching power for each output interface according to the interface status of all output interfaces.

[0054] Optionally, if the interface status of at least some output interfaces is a valid charging status, the processing circuit 130 sets the power of each output interface in a valid charging status to be greater than or equal to the rated power corresponding to each output interface, wherein the sum of the rated powers of at least two output interfaces is less than or equal to the maximum rated output power.

[0055] Specifically, the rated power of the output interface is the maximum rated output power that the processing circuit 130 sets in advance for each output interface. When all output interfaces are connected to electrical devices and charge the electrical devices, the power of each output interface is its corresponding rated power.

[0056] For example, the maximum rated output power of the charger 10 is 67 W. If the charger 10 includes two output interfaces, the rated power of the two output interfaces may be 30 W respectively. When both output interfaces are connected to power-consuming devices and charge the power-consuming devices, the power of each output interface is the corresponding rated power of 30 W.

[0057] Specifically, if all output interfaces are in an effective charging state, all output interfaces can have their corresponding rated power, which is 30 W. If some output interfaces are in an effective charging state, and other output interfaces are in an ineffective charging state, the power of the output interfaces in the effective charging state can be increased to be greater than the rated power, so that the actual output power of the output interfaces in the ineffective charging state can be transferred to the output interfaces in the effective charging state.

[0058] By means of the above-mentioned setting for adjusting the power of the output interface in the effective charging state, the processing circuit 130 can adjust the power of the output interface in the effective charging state so that the power of the output interface in the effective charging state can be increased, and the actual output power of the output interface in the charging state can exceed the rated power without additionally increasing the output power margin, thereby improving the charging efficiency of the output interface and realizing efficient charging of the charger 10.

[0059] Optionally, the sum of the powers of the output interfaces in the effective charging state is less than or equal to the maximum rated output power. In this way, the actual output power of the charger 10 can be less than or equal to its maximum rated output power, thereby protecting the charger 10 and preventing the charger 10 from being damaged due to the output power exceeding the maximum rated output power.

[0060] Optionally, if the interface status of some output interfaces is a valid charging state, and the interface status of other output interfaces is an invalid charging state, the processing circuit 130 can set the power of each output interface in the valid charging state to be greater than or equal to its corresponding rated power, and set each output interface in the invalid charging state to a virtual charging state.

[0061] In some implementations, the power of the output interface in the virtual charging state is the rated power corresponding to the output interface.

[0062] Among them, the output interface in the virtual charging state is in a state of preparation that can provide the rated power to the charging device immediately after the charging device is connected. In other words, the output interface in the virtual charging state does not output actual power, but sets the allocated power of the output interface to prepare for charging, and can quickly charge the charging device after the charging device is connected.

[0063] For example, if the maximum rated output power of the charger 10 is 67W, if the charger 10 includes two output interfaces, the rated powers of the two output interfaces may be 30W respectively. When the processing circuit 130 determines that one output interface is in a valid charging state and the other interface is in an invalid charging state, the allocated power of the output interface in the valid charging state may be set to 67W, and each output interface in the invalid charging state may be set to a virtual charging state, and the allocated power of each output interface in the invalid charging state may be set to 30W.

[0064] Such an arrangement can ensure that each output interface in an effective charging state can achieve full-power charging as much as possible, while allowing each output interface in an ineffective charging state to maintain a certain allocated power, so that when an electrical device is subsequently connected to each output interface in an ineffective charging state, the output interface can supply power to the electrical device at the first time and quickly increase it to the rated power, thereby improving the efficiency of the charger 10.

[0065] Of course, in other implementations, the power of each output interface in a non-effective charging state may be set to other values.

[0066] For example, optionally, if the interface state of at least some of the output interfaces is an ineffective charging state, the processing circuit 130 sets each output interface in an ineffective charging state to a virtual charging state. That is, the power of each output interface in an ineffective charging state is equal to the rated power corresponding to each output interface. Of course, in other embodiments, the power of each output interface in an ineffective charging state can also be set to other values ​​greater than the rated power.

[0067] In some implementations, the processing circuit 130 sets the power of each output interface in a non-effective charging state to the maximum rated output power.

[0068] For example, if the maximum rated output power of the charger 10 with two output interfaces is 67W, and the rated power of the two output interfaces can be 30W respectively, when both output interfaces are in an ineffective charging state, the processing circuit 130 adjusts the power of both to 67W. In this way, when a power-consuming device is subsequently connected to the output interface, the output interface can charge the power-consuming device at full power in the first time.

[0069] And / or, the processing circuit 130 limits the output current of the output interface in the non-effective charging state to a preset minimum current. For example, the preset minimum current can be set to 200mA, 300mA, or 400mA.

[0070] Such a configuration enables the output interface in a non-effective charging state to occupy less output current, thereby increasing the output current of the output interface in an effective charging state, thereby improving the charging efficiency of the charger 10 .

[0071] Through the above settings, the processing circuit 130 can further grasp the interface status of each output interface more accurately, and then reallocate power according to the interface status of each output interface, so that the output interface connected to the electrical device can charge the electrical device to the greatest extent, thereby improving the charging efficiency of the charger 10.

[0072] Based on the contents of the above charger 10, as Figure 2As shown, the power distribution method of the charger 10 is described exemplarily as follows:

[0073] S100: Acquire interface status information of at least two output interfaces.

[0074] Specifically, the processing circuit 130 obtains the interface status information of all output interfaces from the signal detection circuit 133 and each protocol chip 132 corresponding to each output interface. The interface status information includes plugging status information and charging status information. The specific interface status information can be seen in the above description, and this embodiment will not be repeated here.

[0075] S200: Determine the interface status of at least two charging interfaces according to the interface status information of each output interface.

[0076] Specifically, the processing circuit 130 determines whether the output interface has been plugged in by the charging cable according to the plug-in status information. If the output interface is not plugged in, it means that the output interface is not connected to the power-consuming device, and the interface status of the output interface can be further determined to be an invalid charging state.

[0077] If the processing circuit 130 determines that the output interface is not plugged in, the processing circuit 130 further determines whether the output interface is charging the device to be charged according to the charging status information. The charging status information may include protocol status information and output electrical signals.

[0078] First, the processing circuit 130 determines whether there is a charging protocol at the output interface according to the protocol status information. If yes, the interface status of the output interface is determined to be a valid charging status.

[0079] If not, it is further determined whether the output electrical signal of the output interface is less than a preset signal threshold within a preset time period.

[0080] If so, it means that the charging cable with a chip circuit is connected to the output interface and the charging device is not charged, and the interface state of the output interface is determined to be in an invalid charging state.

[0081] If not, it is determined that the interface state of the output interface is in a valid charging state.

[0082] The detailed description of the output electrical signal can be found above, and this embodiment will not be described in detail here.

[0083] Through the above process, the interface status of each output interface can be obtained.

[0084] S300: Setting a matching power for each output interface according to the interface status of at least two output interfaces; wherein the power of each output interface can be set to a maximum value as the maximum rated output power of the power supply circuit.

[0085] Specifically, if the processing circuit 130 determines that the interface status of at least some of the output interfaces is a valid charging status, the processing circuit 130 sets the power of each output interface in the valid charging status to be greater than or equal to the corresponding rated power.

[0086] If the processing circuit 130 determines that the interface status of at least some of the output interfaces is an ineffective charging state, the processing circuit 130 sets each output interface in an ineffective charging state to a virtual charging state, that is, the power of each output interface in an effective charging state is equal to the rated power corresponding to each output interface. Of course, in other embodiments, the power of each output interface in an ineffective charging state can also be set to other values ​​greater than the rated power.

[0087] In some embodiments, if the processing circuit 130 determines that the interface status of a portion of the output interfaces is a valid charging state, while the interface status of another portion of the output interfaces is an invalid charging state, the processing circuit 130 sets the power of each output interface in the valid charging state to be greater than or equal to its corresponding rated power, and sets each output interface in the invalid charging state to a virtual charging state.

[0088] In other embodiments, if the processing circuit 130 determines that the interface status of some output interfaces is a valid charging state, while the interface status of other output interfaces is an ineffective charging state, the power of each output interface in the valid charging state is set to be greater than or equal to its corresponding rated power, and the power of each output interface in the ineffective charging state is set to its corresponding maximum rated output power.

[0089] The maximum value to which the power of each output interface can be set is the maximum rated output power of the power supply circuit 120 .

[0090] The following takes the case where the number of output interfaces is two, and the number of protocol chips 132 and signal detection circuits 133 is also two as an example to describe the charger 10 and the power distribution method of the charger 10:

[0091] like Figure 1As shown, the charger 10 may include two output interfaces and two protocol chips 132 and two signal detection circuits 133. The two output interfaces are respectively a first output interface 111 (C1) and a second output interface 112 (C2). The two protocol chips 132 and the two signal detection circuits 133 correspond to the two output interfaces one by one. Optionally, the maximum rated output power of the charger 10 may be 67W, and the sum of the rated powers of the first output interface 111 and the second output interface 112 may be 65W, wherein the corresponding rated power allocated to the first output interface 111 may be 45W, and the corresponding rated power allocated to the second output interface 112 may be 20W.

[0092] like Figures 3 to 5 As shown, Figure 3 and Figure 4 shows a power distribution method of a portion of the charger 10, Figure 5 for Figure 3 and Figure 4 The flowchart of the implementation scenario of the power distribution method of the charger 10 is shown.

[0093] S110: Acquire the plug-in status information of the first output interface and the second output interface.

[0094] The plugging state information of the first output interface 111 may be represented by S1, and the plugging state information of the second output interface 112 may be represented by S2. When the plugging state of the first output interface 111 is plugged in, its plugging state information may represent S1=1, and when the plugging state of the first output interface 111 is unplugged, its plugging state information may represent S1=0. When the plugging state of the second output interface 112 is plugged in, its plugging state information may represent S2=1, and when the plugging state of the second output interface 112 is unplugged, its plugging state information may represent S2=0.

[0095] Specifically, the processing circuit 130 obtains the plugging status information of C1 and C2 from the protocol circuit 120 .

[0096] S120: Identify and determine whether circuit protection occurs at the first output interface and the second output interface.

[0097] The circuit protection protects the electrical equipment when the output interface is connected to the electrical equipment, so that the output current of the output interface can automatically cut off the power or alarm when it exceeds the rated current, so as to protect the electrical equipment from being burned. For example, the circuit protection can be over current protection.

[0098] Therefore, if the circuit protection of the output interface has occurred, it means that the output interface has been plugged in and is charging the power-consuming device, which means that the output interface is in an effective charging state.

[0099] In some implementations, other methods may be further used to determine whether the plugged-in charging cable is a charging cable with a chip circuit.

[0100] If the circuit protection of the first output interface 111 and / or the second output interface 112 does not occur, it is further determined whether the first output interface 111 and the second output interface 112 have been plugged in.

[0101] S130: Determine whether the first output interface and the second output interface are plugged in.

[0102] If the output interface is not plugged in, it can be determined that the output interface is in an ineffective charging state. If the output interface is plugged in, the interface state of the plugged output interface is determined.

[0103] Exemplarily, if the first output interface 111 has been plugged in, the specific determination process of the interface status of the first output interface 111 may be as shown in steps S210 to S260:

[0104] S210: Determine whether there is a charging protocol for the first output interface according to the charging status information.

[0105] The charging status information may be represented by P. If the output interface has a charging protocol, the charging status information of the output interface may be P=1. If the output interface does not have a charging protocol, the charging status information of the output interface may be P=0.

[0106] S220: If the output electrical signal contains a charging protocol, the first output interface is determined to be in a valid charging state.

[0107] If the output electrical signal contains a charging protocol, it means that the first output interface 111 is charging the electrical device, and the first output interface 111 is determined to be in a valid charging state.

[0108] S230: If it is determined that there is no charging protocol for the first output interface, further determine whether the output electrical signal of the first output interface is less than a preset signal threshold within a preset time period.

[0109] In some embodiments, the output electrical signal may include an output voltage and an output current. The preset signal threshold may include a preset voltage value, a preset current value, and a preset duration, wherein, for example, the preset voltage value may be 6V, the preset current value may be 5mA, and the preset duration may be 3min.

[0110] The output voltage of the first output interface 111 can be expressed as V1, and the output voltage of the first output interface 111 can be expressed as V2. The output current of the first output interface 111 can be expressed as A1, and the output current of the first output interface 111 can be expressed as A2. The duration of the first output interface 111 can be expressed as T1, and the duration of the first output interface 111 can be expressed as T2.

[0111] Specifically, determining whether the output electrical signal of the first output interface 111 is less than a preset signal threshold within a preset time period may include the following steps:

[0112] S231: Determine whether the output voltage of the first output interface is less than 6V.

[0113] S232: If yes, determine whether the output current of the first output interface is less than 1 mA.

[0114] S233: If yes, determine whether the above voltage and current conditions last for more than 3 minutes.

[0115] S240: If the output electrical signal of the first output interface is less than a preset signal threshold within a preset time period, the first output interface is determined to be in an ineffective charging state.

[0116] If the output electrical signal is less than the preset signal threshold within the preset time, it means that the charging cable connected to the first output interface 111 in the non-charging state is a charging cable with a chip circuit that does not charge the electrical device. Therefore, the first output interface 111 can be judged as an ineffective charging state.

[0117] S250: If the output electrical signals of the first output interface are all greater than or equal to the preset signal threshold, the first output interface is determined to be in a valid charging state.

[0118] The process of determining the working state of the second output interface 112 may refer to the process of determining the working state of the first output interface 111 shown in steps S210 to S250, and will not be elaborated in detail in this embodiment.

[0119] S310: Setting a matching power for each output interface according to the interface states of the first output interface and the second output.

[0120] Further, after determining the interface status of the first output interface 111 and the second output interface 112, the following four results may be obtained:

[0121] S311: Both the first output interface and the second output interface are in a non-effective charging state.

[0122] If both the first output interface 111 and the second output interface 112 are in a non-effective charging state, the corresponding power allocated to the second output interface 112 may be greater than or equal to the rated power. For example, it may be 20W, 67W, etc. For example, the power of the first output interface 111 and the second output interface 112 may be set to 67W.

[0123] S312: Both the first output interface and the second output interface are in a valid charging state.

[0124] If the first output interface 111 and the second output interface 112 are both in a valid charging state, it means that the first output interface 111 and the second output interface 112 are charging the electrical device. Therefore, the power of the first output interface 111 and the second output interface 112 are set to their respective corresponding rated powers. The corresponding rated power allocated to the first output interface 111 can be 45W, and the corresponding rated power allocated to the second output interface 112 can be 20W.

[0125] S313: The first output interface is in a valid charging state, and the second output interface is in a non-valid charging state.

[0126] If the first output interface 111 is in an effective charging state, it means that the first output interface 111 is charging the power device, and the second output interface 112 is in an ineffective charging state. At this time, the second output interface 112 may not be plugged into a power device or may be plugged into a charging cable with a circuit chip inside but not charging the device. Therefore, the corresponding power allocated by the first output interface 111 may be greater than or equal to the rated power, and the second output interface 112 is set to a virtual charging state, and the corresponding power of the second output interface 112 may be the rated power. For example, the first output interface 111 may be 67W, and the second output interface 112 may be 20W. In other embodiments, the corresponding power allocated by the second output interface 112 at this time may be greater than the rated power, such as 60, 67W, etc.

[0127] S314: The first output interface is in an ineffective charging state, and the second output interface is in an effective charging state.

[0128] Refer to step S313. For example, the allocated power of the second output interface 112 may be 67W, and the allocated power of the first output interface 111 may be 45W.

[0129] Optionally, the processing circuit 130 may also limit the output current of the output interface in the non-effective charging state to 200 mA.

[0130] In summary, the present application sets a processing circuit 130 in the charger 10, and uses the processing circuit 130 to obtain the interface status information of each output interface and determine the interface status of at least the output interface plugged with the charging cable, and sets a matching power for each output interface according to the interface status of at least the output interface plugged with the charging cable, and can increase the power of each output interface to the maximum rated output power of the charger 10 to supply power to the electrical device, so that the charging process of the charger 10 is more intelligent, and the charging process of the charger 10 can be allocated according to the interface status of the output interface, thereby realizing the automatic allocation of the current power of multiple output interfaces of the charger 10. Moreover, the power of each output interface can be the maximum rated output power of the power supply circuit 120 with the set maximum value, so in some cases, the output interface connected to the electrical device can charge the electrical device to the greatest extent, thereby improving the charging efficiency of the charger 10.

[0131] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A charger, characterized in that: include: At least two output interfaces for charging cables; A power supply circuit, electrically connected to the output interface; A processing circuit, electrically connected to the power supply circuit, wherein the processing circuit obtains interface status information of the at least two output interfaces; Among them, the processing circuit determines the interface status of at least the output interface to which the charging cable is plugged according to the interface status information of each of the output interfaces, and the processing circuit sets a matching power for at least the output interface to which the charging cable is plugged according to the interface status; wherein the maximum value to which the power of each of the output interfaces can be set is the maximum rated output power of the power supply circuit.

2. The charger according to claim 1, characterized in that: The interface status information reflects whether the interface status of the corresponding output interface is a valid charging state or an invalid charging state; if the interface status of at least some of the output interfaces is the valid charging state, the processing circuit sets the power of each of the output interfaces in the valid charging state to be greater than or equal to the corresponding rated power; the sum of the rated powers of the at least two output interfaces is less than or equal to the maximum rated output power.

3. The charger according to claim 2, characterized in that: If the interface status of some of the output interfaces is the valid charging state, and the interface status of another part of the output interfaces is the invalid charging state, the processing circuit sets the power of each of the output interfaces in the valid charging state to be greater than or equal to the corresponding rated power, and sets each of the output interfaces in the invalid charging state to a virtual charging state.

4. The charger according to claim 3, characterized in that: The power of the output interface in the virtual charging state is the rated power corresponding to the output interface.

5. The charger according to claim 2 or 3, characterized in that: The sum of the powers of the output interfaces in the effective charging state is less than or equal to the maximum rated output power.

6. The charger according to claim 1, characterized in that: The interface status information reflects whether the interface status of the corresponding output interface is a valid charging state or an invalid charging state; if the interface status of at least some of the output interfaces is the invalid charging state, the processing circuit sets each of the output interfaces in the invalid charging state to a virtual charging state.

7. The charger according to claim 6, characterized in that: The processing circuit sets the power of each of the output interfaces in the non-valid charging state to the maximum rated output power; and / or, the processing circuit limits the output current of the output interface in the non-valid charging state to a preset minimum current.

8. The charger according to any one of claims 1 to 7, characterized in that: The interface status information includes plug-in status information and charging status information; the processing circuit determines whether the output interface has been plugged in according to the plug-in status information; if the output interface has been plugged in, the processing circuit determines whether the output interface charges the standby power device according to the charging status information; if the output interface charges the standby power device, the interface status of the output interface is the valid charging status; if the output interface is not plugged in or does not charge the standby power device, the interface status of the output interface is the invalid charging status.

9. The charger according to claim 8, characterized in that: The charging status information includes protocol status information and an output electrical signal. The processing circuit determines whether there is a charging protocol for the output interface based on the protocol status information; if so, the interface status of the output interface is determined to be the valid charging status; if not, it is further determined whether the output electrical signal of the output interface is less than a preset signal threshold within a preset time length; if so, the interface status of the output interface is in the invalid charging status.

10. The charger according to claim 9, characterized in that: The charger further comprises at least two signal detection circuits, the at least two signal detection circuits are electrically connected to the at least two output interfaces in a one-to-one correspondence, and the at least two signal detection circuits are electrically connected to the processing circuit; each of the signal detection circuits detects an output electrical signal of each of the output interfaces; the processing circuit acquires the output electrical signal of each of the output interfaces; and / or, The processing circuit includes a processor and at least two protocol chips, the at least two protocol chips are electrically connected to the power supply circuit, and are electrically connected to the at least two output interfaces in a one-to-one correspondence; the processor is electrically connected to the at least two protocol chips; the processor obtains the plugging state information and the protocol state information of the corresponding output interface from each of the protocol chips, and controls the protocol chip to set the corresponding power for the corresponding output interface; and / or, The output electrical signal includes at least one of an output voltage and an output current, and the preset signal threshold value correspondingly includes at least one of a preset voltage value and a preset current value.

11. A power distribution method for a charger, characterized in that: The charger is a charger as claimed in any one of claims 1 to 10, and the method comprises Acquire interface status information of the at least two output interfaces; Determining the interface status of each of the at least two charging interfaces according to the interface status information of each of the output interfaces; A matching power is set for each of the output interfaces according to the interface status of the at least two output interfaces; wherein the power of each of the output interfaces can be a set maximum value as the maximum rated output power of the power supply circuit.

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