Multi-channel and multi-path charging system for energy scheduling

Abstract

The utility model discloses a multi-channel multi-path charging system capable of scheduling energy, and the system comprises a user input unit which is used for providing an operation interface; the controller is used for controlling the input gating control module and the charging and discharging path switching module according to instruction information input by a user so as to select a required charging path; the input of the input gating control module is connected to a power supply end, and the output of the input gating control module is connected to a plurality of charging paths; the output end of the charging and discharging path switching module is connected to a charging interface at the tail end of each charging path; and the energy scheduling channel is connected to the charging interface at the tail end of each charging path and the power supply end, and is used for gating the charging path which is not the discharging path under the condition of switching to the discharging path so as to complete energy scheduling. The utility model provides a charging system integrating a multi-channel charging mode, a multi-path charging mode and energy scheduling.

Description

Technical Field

[0001] The present application relates to the field of basic circuit technology, and in particular to a multi-channel and multi-path charging system for energy scheduling. Background Art

[0002] With the rapid development of electronic technology, electronic devices of various functions and forms are becoming more and more popular. Usually, due to the portability of the equipment, the capacity and volume of the battery are limited. However, people are becoming more and more dependent on the use of electronic devices. In order to meet the usage time requirements, various electronic devices have an increasing demand for chargers. Intelligent chargers should be able to meet multiple functions such as multi-channel charging, fast charging, flexible paths, high efficiency and reliability.

[0003] In actual use, existing electronic device chargers have the following problems:

[0004] First, electronic devices and chargers are usually used in pairs, with a unique charging interface and a single charging path;

[0005] Second, because different devices have different ways of connecting batteries in series and parallel, the charging voltage and charging power will also be different, so chargers cannot be shared between them;

[0006] Third, in the absence of power supply, except for some electronic devices that support USB OTG reverse charging function, the function of charging each other between other electronic devices has not been popularized, and energy scheduling is difficult to achieve.

[0007] Because of the above problems, when multiple devices are in use, if there is insufficient charger resources or insufficient energy supply, it will cause difficulty in powering the terminal or even lose the ability to charge. Summary of the invention

[0008] The embodiment of the present application provides a multi-channel and multi-path charging system for energy scheduling, which is used to provide a charging system integrating multi-channel charging, multi-path charging mode and energy scheduling, realizing one-battery multi-charging and energy scheduling functions, with diverse charging functions and flexible paths.

[0009] The present application provides a multi-channel multi-path charging system for energy scheduling, including:

[0010] A user input unit, used to provide an operation interface;

[0011] A controller, used to control the input gating control module and the charge and discharge path switching module according to the instruction information input by the user, so as to select the required charging path;

[0012] An input gating control module, whose input is connected to the power supply terminal and whose output is connected to multiple charging paths, wherein the end of any charging path is output through a corresponding charging interface;

[0013] A charge and discharge path switching module, the output end of which is connected to the charging interface at the end of each charging path, for executing the charge and discharge path switching according to the control instruction of the controller;

[0014] The energy scheduling channel is connected to the charging interface and the power supply end at the end of each charging path, and is used to select the charging path other than the discharge path through the input selection control module to complete the energy scheduling when switching to the discharge path.

[0015] Optionally, the power supply terminal is connected to an AC input, and / or a DC input.

[0016] Optionally, any of the charging paths includes: the input enable control module and a DC / DC conversion module and a charging management module arranged in series, wherein the DC / DC conversion module is connected to the output end of the input enable control module, and the charging management module outputs to a corresponding charging interface.

[0017] Optionally, when the power supply end is connected to an AC input, the charging path further includes an AC / DC conversion module to convert the AC input into a DC output to the input selection control module.

[0018] Optionally, the input gating control module includes a multi-channel input gating control circuit;

[0019] Any of the input gating control circuits comprises MOS tubes Q1-MOS tubes Q5 and a diode D1, wherein;

[0020] MOS tube Q1, its drain is connected to the input power supply, one end of the resistor R2, the source of MOS tube Q3, one end of the resistor R1, its source is connected to the source of MOS tube Q2, the drain of MOS tube Q2 is connected to the output end of the gating control circuit, and its gate is connected to the drain of MOS tube Q3, the other end of the resistor R2, one end of the resistor R5, one end of the resistor R3, the other end of the resistor R5 is connected to the positive electrode of the diode D1, and the other end of the resistor R3 is connected to the gate of the MOS tube Q2;

[0021] The gate of the MOS tube Q3 is connected to the other end of the resistor R1 and one end of the resistor R4, and the other end of the resistor R4 is connected to the drain of the MOS tube Q4;

[0022] The MOS tube Q4 has a source electrode grounded, a gate electrode connected to the first control signal, and a gate electrode grounded via a resistor R6;

[0023] The MOS tube Q5 has a drain connected to the cathode of the diode D1, a source connected to the ground, and a gate connected to the first control signal and connected to the ground through the resistor R7.

[0024] Optionally, the input gating control module includes input gating control circuits having the same number as the charging paths.

[0025] The embodiment of the present application provides a charging system that integrates multi-channel charging, multi-path charging and energy scheduling, realizing the functions of one-battery multi-charging and energy scheduling, with diverse charging functions and flexible paths.

[0026] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0028] Figure 1 This is an overall structural example of a multi-channel multi-path charging system according to an embodiment of the present application;

[0029] Figure 2 An example of an AC charging path of a multi-channel multi-path charging system according to an embodiment of the present application;

[0030] Figure 3 This is an example of the circuit structure of an AC charging path of a multi-channel multi-path charging system according to an embodiment of the present application;

[0031] Figure 4 An example of a DC charging path of a multi-channel multi-path charging system according to an embodiment of the present application;

[0032] Figure 5 This is an example of a DC charging path circuit structure of a multi-channel multi-path charging system according to an embodiment of the present application;

[0033] Figure 6 This is an example of the energy scheduling path structure of the multi-channel multi-path charging system of the embodiment of the present application;

[0034] Figure 7 This is an example of an input gating control circuit of a multi-channel multi-path charging system according to an embodiment of the present application. DETAILED DESCRIPTION

[0035] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0036] The present application embodiment provides a multi-channel multi-path charging system for energy scheduling, such as Figure 1 As shown, including:

[0037] A user input unit, used to provide an operation interface;

[0038] A controller, used to control the input gating control module and the charge and discharge path switching module according to the instruction information input by the user, so as to select the required charging path;

[0039] An input gating control module, whose input is connected to the power supply terminal and whose output is connected to multiple charging paths, wherein the end of any charging path is output through a corresponding charging interface;

[0040] A charge and discharge path switching module, the output end of which is connected to the charging interface at the end of each charging path, for executing the charge and discharge path switching according to the control instruction of the controller;

[0041] The energy scheduling channel is connected to the charging interface and the power supply end at the end of each charging path, and is used to select the charging path other than the discharge path through the input selection control module to complete the energy scheduling when switching to the discharge path.

[0042] In some embodiments, the power terminal is connected to an AC input, and / or a DC input.

[0043] In some embodiments, any of the charging paths includes: the input enable control module and a DC / DC conversion module and a charging management module arranged in series, wherein the DC / DC conversion module is connected to the output end of the input enable control module, and the charging management module outputs to the corresponding charging interface.

[0044] In some embodiments, when the power supply terminal is connected to an AC input, the charging path further includes an AC / DC conversion module to convert the AC input into a DC output to the input gating control module.

[0045] In some specific examples, the multi-channel multi-path charging system of the present application includes a user input unit, a controller, an AC input, a DC input, N charging interfaces, N charging management modules, N charging and discharging path switching modules, N DC / DC conversion units, an input gating control module, and a charging and discharging path switching module. By controlling each functional module, AC / DC charging, multiple charging of one battery, and energy scheduling functions can be realized.

[0046] The three charging paths and input gating control are the main components of this application. Multi-channel and multi-path charging methods can be realized through input gating control. This application supports three charging methods: AC charging method; DC charging method and energy scheduling method.

[0047] In the embodiment of the present application, the above three charging methods are further described in combination with the multi-path charging function block diagram:

[0048] Method 1: AC charging

[0049] like Figure 2 As shown, in the AC charging mode, the AC input voltage is converted through the AC / DC power supply, the input power is selected through the input selection control unit, and then the DC / DC power supply is converted to adapt the charging voltage required by each charging interface. The battery charging management is implemented through the charging management module. The AC charging mode supports simultaneous charging of multiple interfaces.

[0050] Figure 3 The circuit block diagram of the AC charging method is shown, wherein:

[0051] FUSE1 and FUSE2 are input-side fuses, mainly used for fault isolation;

[0052] Filter is an EMI filter, which is mainly used to filter out high-frequency interference on the power line;

[0053] E1 is a high reliability, low ESR electrolytic capacitor, mainly used to filter low frequency ripple, the capacitance is generally tens to hundreds of microfarads;

[0054] C1~C5 high-frequency ceramic capacitors or polyester capacitors are mainly used to filter out high-frequency interference, and the capacitance is generally 1uF~10uF;

[0055] L is the common mode inductor, which is mainly used to filter out common mode noise, and its inductance is generally 0.6mH~1.2mH;

[0056] R1 and R2 are output adjustment resistors, which are used to adjust the output voltage of the AC-DC module power supply;

[0057] R4 and R6 are output adjustment resistors, which are used to adjust the output voltage of the DC-DC power supply;

[0058] Q1 is a switch PMOS, which is used to turn on the external input power supply through the INFET pin;

[0059] Q2 is a switch PMOS, which is used to turn on the battery charging path and is turned on through the TGATE pin;

[0060] Q3 is a switch NMOS, which is used to open the battery charging path and is turned on through the BGATE pin;

[0061] L1 is the filter inductor;

[0062] R3, R8, and R10 are matching resistors;

[0063] R5 is a detection resistor used to detect the charging current.

[0064] Method 2: DC charging

[0065] DC charging method, such as Figure 4 As shown, the input power is selected through the input selection control unit, and then the charging voltage required by each charging interface is adapted through DC / DC power conversion. The battery charging management is implemented through the charging management module. The DC charging mode supports simultaneous charging of multiple interfaces. When the AC input mode and the DC input mode work at the same time, when one of the power sources is removed, the input control is performed through the input selection control unit to achieve uninterrupted power supply.

[0066] Figure 5 shows a schematic diagram of a DC charging circuit, where

[0067] FUSE1 is the input side fuse, mainly used for fault isolation;

[0068] Filter is an EMI filter, which is mainly used to filter out high-frequency interference on the power line;

[0069] E1 and E2 are high-reliability, low-ESR electrolytic capacitors, mainly used to filter low-frequency ripples, and their capacitance is generally tens to hundreds of microfarads;

[0070] D1 is a transient absorption diode TVS, which is mainly used to prevent the power supply bus from damaging the power module or other circuits due to instantaneous spike voltage;

[0071] C1~C5 high-frequency ceramic capacitors or polyester capacitors are mainly used to filter out high-frequency interference, and the capacitance is generally 1uF~10uF;

[0072] L is the common mode inductor, which is mainly used to filter out common mode noise, and its inductance is generally 0.6mH~1.2mH;

[0073] R2 and R4 are output adjustment resistors, which are used to adjust the output voltage of the AC-DC module power supply;

[0074] R5 and R7 are output adjustment resistors, which are used to adjust the output voltage of the DC-DC power supply;

[0075] Q1 is a switch PMOS, which is used to turn on the external input power supply through the INFET pin;

[0076] Q2 is a switch PMOS, which is used to turn on the battery charging path and is turned on through the TGATE pin;

[0077] Q3 is a switch NMOS, which is used to open the battery charging path and is turned on through the BGATE pin;

[0078] L1 is the filter inductor;

[0079] R1, R6, and R8 are matching resistors;

[0080] R3 is a detection resistor used to detect the charging current.

[0081] Method 3: Energy Scheduling

[0082] In the absence of AC / DC input power, the system of the present application is used to implement energy scheduling among multiple devices, such as Figure 6 As shown, the charging interface is converted from charging mode to discharging mode, or from discharging mode to charging mode, through the charging and discharging path switching module; in the discharging mode, the charging interface is equivalent to opening a reverse charging channel, and other devices can be charged through input selection control. Furthermore, the method supports multiple charging interfaces to open directional charging channels at the same time, and charge multiple electronic devices at the same time, that is, it supports multiple energy scheduling modes such as one-to-many, many-to-one and many-to-many.

[0083] In the energy scheduling mode, the charging interface unit can be configured as a charging interface or a discharging interface through the setting of the user input unit, that is, through the charging and discharging path switching module, two paths of the charging interface, a charging path and a discharging path, can be realized.

[0084] Energy scheduling process: set through the buttons of the user input unit or the control panel. Take charging interface 1 as charging interface N as an example. After the user input unit is set, the controller executes the corresponding control program according to the user setting, opens the reverse charging path of charging interface 1 by soft switch or hard switch, and closes the charging path of charging interface 1, that is, charging interface 1 is discharged, and becomes a stable input power supply through input gating control, and then adapts the charging voltage required by each charging interface N through DC / DC power conversion. Battery charging management is implemented through the charging management module. At this time, charging interface N is in the charging path, and the charging circuit can refer to the DC charging circuit. This method also supports charging multiple charging interfaces at the same time.

[0085] The opening and closing of the three charging paths of the present application are realized by input gating control circuit. In some embodiments, Figure 7 As shown, the input gating control module includes multiple input gating control circuits, and the input power source VIN of each input gating control circuit corresponds to a set of gating control circuits. The input gating control module includes the same number of input gating control circuits as the charging paths. The input gating control circuit includes an input power source generated by AC input after AC-DC conversion, an input power source generated by DC input, and N reverse input power sources corresponding to N charging interfaces.

[0086] Any of the input gating control circuits comprises MOS tubes Q1-MOS tubes Q5 and a diode D1, wherein;

[0087] MOS tube Q1, its drain is connected to the input power supply, one end of the resistor R2, the source of MOS tube Q3, one end of the resistor R1, its source is connected to the source of MOS tube Q2, the drain of MOS tube Q2 is connected to the output end of the gating control circuit, and its gate is connected to the drain of MOS tube Q3, the other end of the resistor R2, one end of the resistor R5, one end of the resistor R3, the other end of the resistor R5 is connected to the positive electrode of the diode D1, and the other end of the resistor R3 is connected to the gate of the MOS tube Q2;

[0088] The gate of the MOS tube Q3 is connected to the other end of the resistor R1 and one end of the resistor R4, and the other end of the resistor R4 is connected to the drain of the MOS tube Q4;

[0089] The MOS tube Q4 has a source electrode grounded, a gate electrode connected to the first control signal, and a gate electrode grounded via a resistor R6;

[0090] The MOS tube Q5 has a drain connected to the cathode of the diode D1, a source connected to the ground, and a gate connected to the first control signal and connected to the ground through the resistor R7.

[0091] When one of the charging paths is turned on, taking the path corresponding to VIN_1 as an example, the control signal Ctrl1_1 of the corresponding circuit is high, and the CtrlN_1 corresponding to the other paths are all low, Q5 is turned on, Q1 and Q2 are turned on, and the output channel corresponding to VIN_1 is turned on. At the same time, when the VIN_1 charging path is turned on, the Ctrl N_2 corresponding to the other paths are all set to high, Q8 and Q9 are turned on, Q3 and Q4 are turned off, and the corresponding output paths are turned off to ensure that only one input power source is selected at the same time.

[0092] The embodiment of the present application provides a charging system that integrates multi-channel charging, multi-path charging mode and energy scheduling, realizing the functions of multi-charging and energy scheduling with one battery, with diverse charging functions and flexible paths. The charging system of the present application supports AC and DC voltage charging and energy scheduling between devices, with flexible and diverse charging modes and simple and easy-to-use charging methods, which not only reduces the consumption of charger hardware resources, but also takes into account the use needs in emergency situations when going out, and has powerful functions and strong versatility.

[0093] It should be noted that in the embodiments of the present application, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0094] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0095] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A multi-channel multi-path charging system for energy scheduling, characterized in that: include: A user input unit, used to provide an operation interface; A controller, used to control the input gating control module and the charge and discharge path switching module according to the instruction information input by the user, so as to select the required charging path; An input gating control module, whose input is connected to the power supply terminal and whose output is connected to multiple charging paths, wherein the end of any charging path is output through a corresponding charging interface; A charge and discharge path switching module, the output end of which is connected to the charging interface at the end of each charging path, for executing the charge and discharge path switching according to the control instruction of the controller; The energy scheduling channel is connected to the charging interface and the power supply end at the end of each charging path, and is used to select the charging path other than the discharge path through the input selection control module to complete the energy scheduling when switching to the discharge path.

2. The multi-channel multi-path charging system for energy scheduling as claimed in claim 1, characterized in that: The power supply terminal is connected to an AC input, and / or a DC input.

3. The multi-channel multi-path charging system for energy scheduling as claimed in claim 2, characterized in that: Any of the charging paths includes: the input gating control module and a DC / DC conversion module and a charging management module arranged in series, wherein the DC / DC conversion module is connected to the output end of the input gating control module, and the charging management module outputs to the corresponding charging interface.

4. The multi-channel multi-path charging system for energy scheduling as claimed in claim 3, characterized in that: When the power supply end is connected to an AC input, the charging path further includes an AC / DC conversion module to convert the AC input into a DC output to the input gating control module.

5. The multi-channel multi-path charging system for energy scheduling as claimed in claim 3, characterized in that: The input gating control module includes a multi-channel input gating control circuit; Any of the input gating control circuits comprises MOS tubes Q1-MOS tubes Q5 and a diode D1, wherein; MOS tube Q1, its drain is connected to the input power supply, one end of the resistor R2, the source of MOS tube Q3, one end of the resistor R1, its source is connected to the source of MOS tube Q2, the drain of MOS tube Q2 is connected to the output end of the gating control circuit, and its gate is connected to the drain of MOS tube Q3, the other end of the resistor R2, one end of the resistor R5, one end of the resistor R3, the other end of the resistor R5 is connected to the positive electrode of the diode D1, and the other end of the resistor R3 is connected to the gate of the MOS tube Q2; The gate of the MOS tube Q3 is connected to the other end of the resistor R1 and one end of the resistor R4, and the other end of the resistor R4 is connected to the drain of the MOS tube Q4; The MOS tube Q4 has a source electrode grounded, a gate electrode connected to the first control signal, and a gate electrode grounded via a resistor R6; The MOS tube Q5 has a drain connected to the cathode of the diode D1, a source connected to the ground, and a gate connected to the first control signal and connected to the ground through the resistor R7.

6. The multi-channel multi-path charging system for energy scheduling as claimed in claim 5, characterized in that: The input gating control module includes input gating control circuits having the same number as the charging paths.

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