CN218920024U - Charging control circuit, charging module and electronic equipment - Google Patents
Charging control circuit, charging module and electronic equipment Download PDFInfo
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- CN218920024U CN218920024U CN202223095592.9U CN202223095592U CN218920024U CN 218920024 U CN218920024 U CN 218920024U CN 202223095592 U CN202223095592 U CN 202223095592U CN 218920024 U CN218920024 U CN 218920024U
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Abstract
The application provides a charging control circuit, a charging module and electronic equipment, wherein in the charging control circuit, a selection control module, a first reverse protection module and a second reverse protection module are arranged, and the first reverse protection module is respectively connected with the first charging circuit and the selection control module and is used for protecting the first charging circuit; the second reverse protection module is respectively connected with the second charging circuit and the selection control module and is used for protecting the second charging circuit; the input end of the selection control module is respectively connected with the first reverse protection module, the second reverse protection module, the first charging circuit and the second charging circuit, and the output end of the selection control module is connected with the battery and used for controlling the first charging circuit or the second charging circuit to be conducted so as to charge the battery. Compared with the prior art, the method and the device can realize automatic switching of two different charging modes, and simultaneously realize the reverse protection function of each charging circuit so as to improve the safety of products.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a charging control circuit, a charging module and electronic equipment.
Background
Along with the increasing popularity of two-in-one notebook computers, the functions of the notebook computers in the market are more and more perfect, and besides the normal office use is satisfied, the two-in-one notebook computers also have the advantages of light weight, convenience in carrying out, convenience in charging and the like. Meanwhile, the two-in-one notebook computer also needs to meet the requirements of different office scenes by switching different chargers to charge, such as a scene of independently inserting a Direct Current (DC) charger to charge, a scene of independently inserting a Type-C charger to charge, a scene of simultaneously inserting a DC charger and a Type-C charger to charge only through the DC charger, and the like.
In the prior art, a plurality of MOS transistors are respectively arranged on paths of two different chargers connected with a battery to switch charging modes, as shown in fig. 1, the MOS transistors are respectively arranged on a connecting path between a control signal output end of a Power supply (PD) chip corresponding to a Type-C charger and a Power switch (Power switch) and a connecting path between a DC charger and the Power switch to realize charging only through the DC charger when the DC charger and the Type-C charger are simultaneously inserted for charging.
Disclosure of Invention
The embodiment of the application discloses a charging control circuit, a charging module and electronic equipment, so as to realize automatic switching of two different charging modes on the same equipment, and simultaneously realize the reverse protection function of each charging circuit, thereby providing flexible configuration and safety of products to the maximum extent.
In a first aspect, the present application provides a charge control circuit applied to an electronic device including a battery, the electronic device including a first charge circuit and a second charge circuit, the charge control circuit including a selection control module, a first reverse protection module, and a second reverse protection module, wherein: the first reverse protection module is respectively connected with the first charging circuit and the selection control module and is used for protecting the first charging circuit from current and/or voltage; the second reverse protection module is respectively connected with the second charging circuit and the battery and is used for protecting the second charging circuit from current and/or voltage; the input end of the selection control module is respectively connected with the first reverse protection module, the second reverse protection module, the first charging circuit and the second charging circuit, and the output end of the selection control module is connected with the battery and is used for controlling the on-off state of the first charging circuit according to the first output voltage of the first charging circuit and the second output voltage of the second charging circuit so as to charge the battery through one of the first charging circuit and the second charging circuit.
In one embodiment, the selection control module includes a selector and a power switch; the first input end of the selector is connected with the output end of the first reverse protection module, the second input end of the selector is connected with the output end of the second charging circuit, the output end of the selector is connected with the first input end of the power switch, the selector is used for outputting a control signal according to the first output voltage and the second output voltage, and the control signal is used for controlling the on-off state of the power switch; the second input end of the power switch is connected with the first output end of the first charging circuit, the output end of the power switch is connected with the battery, and the power switch is used for responding to the control signal and is placed in an on-off state indicated by the control signal.
In one embodiment, the charging control circuit further comprises a charging controller; the input end of the charging controller is respectively connected with the output end of the second reverse protection module and the output end of the power switch, the output end of the charging controller is connected with the battery, and the charging controller is used for converting the received first output voltage or the second output voltage into the charging voltage of the battery so as to charge the battery through the charging voltage.
In one embodiment, the first reverse protection module includes a first voltage input end, a second voltage input end and a diode, the first voltage input end is connected with the first input end of the selector and the positive electrode of the diode respectively, the second voltage input end is connected with the second output end of the first charging circuit and the negative electrode of the diode respectively, and the second voltage input end is the same as the input voltage of the first voltage input end; the second output end of the first charging circuit is used for outputting a target signal, and the target signal is used for indicating the charging state of the first charging circuit, wherein the charging state comprises a state of not charging the battery and a state of charging the battery; the diode is used for controlling the on-off state between the selector and the first charging circuit according to the target signal, the first input voltage of the first voltage input end and the second input voltage of the second voltage input end, wherein when the target signal is used for indicating that the first charging circuit is in the state of not charging the battery, the diode is in an off state; when the diode is in the off state, the first output voltage is a first voltage; when the diode is in a conducting state, the first output voltage is a second voltage, and the first voltage is higher than the second voltage.
In one embodiment, the selector is configured to: outputting a first control signal when one of the first output voltage and the second output voltage is the first voltage, wherein the first control signal is used for controlling the power switch to be in an off state; or when the first output voltage and the second output voltage are both the second voltage, outputting a second control signal, wherein the second control signal is used for controlling the power switch to be in a conducting state.
In one embodiment, the selector is an or gate.
In one embodiment, the second reverse protection module is a diode.
In one embodiment, the first charging circuit is a Direct Current (DC) charging circuit, and the second charging circuit is a Type-C charging circuit.
In a second aspect, the present application provides a charging module, including the charging control circuit described above.
In a third aspect, the present application provides an electronic device, including the above-described charge control circuit.
In the charging control circuit, the selection control module, the first reverse protection module and the second reverse protection module are arranged, and the first reverse protection module is respectively connected with the first charging circuit and the selection control module and is used for protecting the current and/or the voltage of the first charging circuit; the second reverse protection module is respectively connected with the second charging circuit and the selection control module and is used for protecting the second charging circuit from current and/or voltage; the input end of the selection control module is respectively connected with the first reverse protection module, the second reverse protection module, the first charging circuit and the second charging circuit, and the output end of the selection control module is connected with the battery and used for controlling the first charging circuit or the second charging circuit to be conducted so as to charge the battery. Compared with the prior art, the automatic switching of two different charging modes is realized on the same equipment, and meanwhile, the reverse protection function of each charging circuit is realized, so that the flexibility and the safety of products are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a charge control circuit in the prior art;
fig. 2 is a schematic structural diagram of a charge control circuit according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another charge control circuit according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of another charge control circuit according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of another charge control circuit according to an embodiment of the present disclosure;
fig. 6 is a schematic circuit diagram of another charge control circuit according to an embodiment of the present disclosure.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It should be noted that the terms "comprising" and "having" and any variations thereof in the embodiments and figures herein are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The charging control circuit provided by the embodiment of the application can be arranged in electronic equipment, and the electronic equipment can be mobile equipment such as a smart phone and a tablet personal computer. The electronic device may charge its own battery by the first charging circuit or the second charging circuit.
Fig. 2 is a schematic structural diagram of a charge control circuit provided in the present application, as shown in the drawing, the charge control circuit is applied to the above electronic device, and may include a selection control module 12, a first reverse protection module 11 and a second reverse protection module 15, where the first reverse protection module 11 is connected with the first charge circuit 10 and the selection control module 12 respectively, the second reverse protection module 15 is connected with the second charge circuit 14 and the battery 13 respectively, an input end of the selection control module 12 is connected with the first reverse protection module 11, the second reverse protection module 15, the first charge circuit 10 and the second charge circuit 14 respectively, and an output end of the selection control module 12 is connected with the battery 13. Wherein:
the first reverse protection module 11 is used for protecting the first charging circuit 10 from current and/or voltage;
the second reverse protection module 15 is used for protecting the second charging circuit 14 from current and/or voltage;
the selection control module 12 is configured to control an on-off state of the first charging circuit 10 according to the first output voltage of the first charging circuit 10 and the second output voltage of the second charging circuit 14, so as to charge the battery 13 through one of the first charging circuit 10 and the second charging circuit 14.
It should be appreciated that the first output voltage of the first charging circuit 10 is a voltage that is output when the first charging circuit 10 is in a state that provides a voltage to the battery 13, for example, taking the first charging circuit 10 as a direct current DC charging circuit as an example, when the electronic device is in a direct current DC charging mode, for example, a direct current DC charger is connected to the electronic device, the direct current DC charger charges the battery 13 of the electronic device by converting a normal voltage of 220V into a voltage required by the battery 13 of the electronic device. The second output voltage of the second charging circuit 14 is the same. It should be noted that, the voltage required by the battery 13 is determined according to the battery 13 charging specification of the electronic device, which is not limited in the present application.
It should be understood that the manner in which the selection control module 12 controls the on-off state of the first charging circuit 10 by using the first output voltage of the first charging circuit 10 and the second output voltage of the second charging circuit 14 is divided into: when the second output voltage of the second charging circuit 14 indicates that the second charging circuit 14 is available for charging, the first charging circuit 10 is controlled to be turned off; when the second output voltage of the second charging circuit 14 indicates that the second charging circuit 14 is not available for charging, the first charging circuit 10 is controlled to be turned on.
Illustratively, the following may be included: when the first output voltage indicates that the first charging circuit 10 is in a chargeable state and the second output voltage indicates that the second charging circuit 14 is in a chargeable state, controlling the path of the first charging circuit 10 to be in an off state; when the first output voltage indicates that the first charging circuit 10 is in a chargeable state and the second output voltage indicates that the second charging circuit 14 is in a non-chargeable state, the path of the first charging circuit 10 is controlled to be in a conductive state; when the first output voltage indicates that the first charging circuit 10 is in the non-chargeable state and the second output voltage indicates that the second charging circuit 14 is in the non-chargeable state, the path of the first charging circuit 10 is controlled to be in an off state; when the first output voltage indicates that the first charging circuit 10 is in the non-chargeable state and the second output voltage indicates that the second charging circuit 14 is in the chargeable state, the path of the first charging circuit 10 is controlled to be in the off state.
Alternatively, the first charging circuit 10 may be a Direct Current (DC) charging circuit, and the second charging circuit 14 may be a Type-C charging circuit.
Preferably, as shown in fig. 6, the second reverse protection module 15 is a diode 111.
Alternatively, the detection of the first output voltage may be performed by collecting the voltage at the output end of the first charging circuit 10 in real time, or may be performed by accessing a detection module to a connection portion between the first charging circuit 10 and a corresponding charger, for example, a signal trigger is set at a connection portion between the first charging circuit 10 and the charger, and when the charger is connected to the first charging circuit 10, the signal trigger is triggered to send an instruction indicating that the charger is connected to the charging circuit, and the electronic device starts to collect the first output voltage according to the instruction. The second output voltage is the same.
In the above-mentioned charge control circuit, by providing the selection control module 12, the first reverse protection module 11 and the second reverse protection module 15, the first reverse protection module 11 is respectively connected with the first charge circuit 10 and the selection control module 12, and is used for protecting the first charge circuit 10 from current and/or voltage; the second reverse protection module 15 is connected to the second charging circuit 14 and the selection control module 12, respectively, and is used for protecting the second charging circuit 14 from current and/or voltage; the input end of the selection control module 12 is respectively connected with the first reverse protection module 11, the second reverse protection module 15, the first charging circuit 10 and the second charging circuit 14, and the output end of the selection control module 12 is connected with the battery 13 for controlling the first charging circuit 10 or the second charging circuit 14 to be conducted so as to charge the battery 13. Compared with the prior art, the automatic switching of two different charging modes is realized on the same equipment, and meanwhile, the reverse protection function of each charging circuit is realized, so that the flexibility and the safety of products are improved.
Fig. 3 is a schematic structural diagram of a charge control circuit provided in the present application, as shown in the fig. 2, based on the charge control circuit, the selection control module 12 may include a selector 121 and a power switch 122, where a first input end of the selector 121 is connected to an output end of the first reverse protection module 11, a second input end of the selector 121 is connected to an output end of the second charging circuit 14, an output end of the selector 121 is connected to a first input end of the power switch 122, a second input end of the power switch 122 is connected to a first output end of the first charging circuit 10, and an output end of the power switch 122 is connected to the battery 13. Wherein:
the selector 121 is configured to output a control signal according to the first output voltage and the second output voltage, where the control signal is configured to control an on-off state of the power switch 122.
The power switch 122 is configured to be placed in an on-off state indicated by the control signal in response to the control signal.
It should be understood that the control signals include a first control signal for controlling the power switch 122 to be in an on state and a second control signal for controlling the power switch 122 to be in an off state, and the selector 121 outputs the first control signal when the first output voltage indicates that the first charging circuit 10 is in a chargeable state and the second output voltage indicates that the second charging circuit 14 is in an uncharged state; the remaining cases output a second control signal, for example, when the first output voltage indicates that the first charging circuit 10 is in a chargeable state and the second output voltage indicates that the second charging circuit 14 is in a chargeable state; or, when the first output voltage indicates that the first charging circuit 10 is in an uncharged state, the second output voltage indicates that the second charging circuit 14 is in an uncharged state; or when the first output voltage indicates that the first charging circuit 10 is in an uncharged state and the second output voltage indicates that the second charging circuit 14 is in a chargeable state.
Preferably, as shown in fig. 6, the selector 121 is an or gate.
Illustratively, taking the selector 121 as an OR gate as an example, the relationship between the control signal of the selector 121 as an output value and the first and second output voltages as input values is shown in Table 1 ：
TABLE 1
In the above embodiment, the control power switch 122 is placed in the on state when the control signal is at the low level, and the control power switch 122 is placed in the off state when the control signal is at the high level.
In the above-mentioned charge control circuit, through setting up selector 121 and switch 122 and realizing the switching of first charging circuit 10 and second charging circuit 14, selector 121 confirms the break-make state of second charging circuit 14 through first output voltage and second output voltage, compares in prior art's a plurality of MOS pipes and realizes the scheme of charging switching, and this application has realized the function the same with prior art through less devices, has reduced the cost.
Fig. 4 is a schematic structural diagram of a charging control circuit provided by the present application, as shown in the drawing, based on the charging control circuit shown in fig. 3, the charging control circuit further includes a charging controller 16, an input end of the charging controller 16 is connected with an output end of the second reverse protection module 15 and an output end of the power switch 122, and an output end of the charging controller 16 is connected with the battery 13. Wherein:
the charge controller 16 is configured to convert the received first output voltage or second output voltage into a charging voltage of the battery 13 to charge the battery 13 through the charging voltage.
In the above charge control circuit, the charge controller 16 is provided to provide the charge voltage for the battery 13, so as to improve the safety when charging the battery 13, and convert the first output voltage or the second output voltage with different voltages into the voltage with the same specification, so as to supply the battery 13 for charging, thereby realizing charging of the battery 13 by different charge circuits and improving the compatibility.
Fig. 5 is a schematic structural diagram of a charge control circuit provided in the present application, as shown in the drawing, based on the charge control circuit shown in fig. 3, the first reverse protection module 11 includes a first voltage input end 113, a second voltage input end 112 and a diode 111, the first voltage input end 113 is respectively connected with a first input end of the selector 121 and an anode of the diode 111, the second voltage input end 112 is respectively connected with a second output end of the first charge circuit 10 and a cathode of the diode 111, and the second voltage input end 112 is the same as an input voltage of the first voltage input end 113. Wherein:
a second output terminal of the first charging circuit 10 for outputting a target signal for indicating a state of charge of the first charging circuit 10, the state of charge including a state in which the battery 13 is not charged and a state in which the battery 13 is charged;
a diode 111 for controlling the on-off state between the selector 121 and the first charging circuit 10 according to a target signal, a first input voltage of the first voltage input terminal 113 and a second input voltage of the second voltage input terminal 112, wherein the diode 111 is in an off state when the target signal is used for indicating that the first charging circuit 10 is in a state in which the battery 13 is not charged;
wherein, when the diode 111 is in the off state, the first output voltage is the first voltage; when the diode 111 is in the on state, the first output voltage is the second voltage, and the first voltage is higher than the second voltage.
Optionally, the first voltage is a high level signal, and the second voltage is a low level signal.
It should be understood that the target signal is divided into the above-described first signal in which the first charging circuit 10 charges the battery 13 and the second signal in which the first charging circuit 10 does not charge the battery 13, and the first signal and the second signal are used to change the voltage state across the diode 111.
Based on the structure of the first reverse protection module 11, the selector 121 outputs a first control signal when one of the first output voltage and the second output voltage is the first voltage, where the first control signal is used to control the power switch 122 to be in an off state; or, when the first output voltage and the second output voltage are both the second voltage, a second control signal is output, where the second control signal is used to control the power switch 122 to be in a conducting state.
Illustratively, the first signal when the first charging circuit 10 is in a state where the battery 13 can be charged is a low level signal, and the second signal when the first charging circuit 10 is in a state where the battery 13 cannot be charged is a high resistance state signal. Taking the selector 121 as an or gate as an example, when the target signal is a low level signal and the second output voltage of the second charging circuit 14 is 0, the voltage at the negative electrode of the diode D1 is 0, and since the positive electrode of the diode D1 is connected to the first voltage input terminal 113, the diode D1 is turned on in the forward direction, and the conduction voltage drop of the diode 111 is 0.7V, the positive terminal voltage of the diode D1 is 0..7v, that is, the input voltage at the first input terminal of the or gate is 0.7V, and is low, and since the input voltage at the second input terminal of the or gate is 0V, the or gate outputs a low level signal, so that the power switch 122 is placed in the on state. When the target signal is a high-impedance signal, the voltage at the cathode of the diode D1 is the input voltage of the second voltage input terminal 112, the voltage at the anode of the diode D1 is the input voltage of the first voltage input terminal 113, and since the second voltage input terminal 112 is the same as the input voltage of the first voltage input terminal 113, the voltages at the anode and cathode of the diode D1 are the same, and the diode D1 is not turned on, i.e., the voltage at the first input terminal of the or gate is the input voltage of the first voltage input terminal 113, i.e., the high-level signal, so that the or gate outputs the high-level signal regardless of whether the signal at the second input terminal of the or gate is the high-level signal or the low-level signal, so that the power switch 122 is placed in the off state.
Fig. 6 is a schematic structural diagram of a charging control circuit provided in the present application, as shown in the drawing, based on the charging control circuit shown in fig. 2, in this embodiment, the first charging circuit 10 is a Type-C charging circuit, the second charging circuit 14 is a DC charging circuit, the selection control module 12 includes an or gate and a power switch 122, the first reverse protection module 11 includes a first diode D1, a first voltage input end 113 and a second voltage input end 112, and the second reverse protection module 15 is a second diode D2.
The first input end of the OR gate is connected with the positive electrode of the first diode D1, the second input end of the OR gate is connected with the output end of the direct-current DC charging circuit, the output end of the OR gate is connected with the enabling end of the power switch 122, the current input end of the power switch 122 is connected with the current output end of the Type-C charging circuit, and the output end of the power switch 122 is connected with the charging controller 16; the output end of the direct current DC charging circuit is also connected with the positive electrode of a second diode D2, and the negative electrode of the second diode D2 is connected with the charging controller 16; the first voltage input end 113 is respectively connected with the first input end of the OR gate and the positive electrode of the first diode D1, the second voltage input end 112 is respectively connected with the second output end of the Type-C charging circuit and the negative electrode of the first diode D1, and the input voltages of the second voltage input end 112 and the first voltage input end 113 are the same and are all 3.3V. The second output end of the Type-C charging circuit outputs a signal whether the Type-C charging circuit can charge the battery 13 or not, when the Type-C charger is inserted and can charge the battery 13, the second output end of the Type-C charging circuit outputs a low-level signal, and when the Type-C is not inserted or the Type-C is inserted and can not charge the battery 13, the second output end of the Type-C charging circuit is in a high-resistance state.
When charging is performed using the structure in the present embodiment, the following scenarios can be classified:
scene 1: when neither the Type-C charging circuit nor the direct current DC charging circuit outputs a voltage, the charge controller 16 has no voltage input, and at this time, the battery 13 is not charged.
Scene 2: when the Type-C charging circuit outputs a voltage, the DC charging circuit does not output a voltage, and the Type-C charging circuit can charge the battery 13, the second output end of the Type-C charging circuit outputs a low level signal, the voltage of the cathode of the first diode D1 is 0, the voltage drop of the diode is 0.7V, the positive voltage of the D1 is 0.7V (low level), the first input end and the second input end of the or gate are both low levels, the or gate outputs a low level, the power switch 122 turns on the connection state between the Type-C charging circuit and the battery 13, and the Type-C charging circuit outputs a voltage to the charge controller 16 to charge the battery 13.
Scene 3: when the Type-C charging circuit outputs voltage, the DC charging circuit does not output voltage, and the Type-C charging circuit cannot charge the battery 13, the second output end of the Type-C charging circuit is in a high-resistance state, the voltages at two ends of the first diode D1 are 3.3V, D1 is not turned on, the positive pole of D1 is pulled high by 3.3V, the first input end of the or gate is in a high level, the output voltage of the DC charging circuit is in a low level, that is, the second input end of the or gate is in a low level, the or gate outputs a high level, the power switch 122 is turned off, and the output voltage of the Type-C charging circuit cannot pass through the power switch 122.
Scene 4: when the direct current DC charging circuit outputs voltage and the Type-C charging circuit does not output voltage, the second output end of the Type-C charging circuit is in a high resistance state, the voltages at two ends of the first diode D1 are 3.3V, D1 is not conducted, the positive electrode of D1 is pulled up by 3.3V, the output voltage of the direct current DC charging circuit is in a high level, the or gate outputs a high level, the power switch 122 is turned off, and the direct current DC charging circuit directly outputs voltage to the charging controller 16 through the second diode D2, so as to charge the battery 13.
Scene 5: when the Type-C charging circuit outputs voltage and the DC charging circuit outputs voltage, and the Type-C charging circuit can charge the battery 13, the second output end of the Type-C charging circuit outputs a low level, the voltage of the cathode of the first diode D1 is 0, the voltage drop of the diode is 0.7V, the positive voltage of the D1 is 0.7V (low level), the output voltage of the DC charging circuit is high, or the gate outputs high level, the power switch 122 is turned off, the output voltage of the Type-C charging circuit cannot pass through the power switch 122, and the DC charging circuit directly outputs the voltage to the charging controller 16 through the second diode D2 and then charges the battery 13.
In order to ensure the current safety, a first resistor R1 is further connected between the second voltage input terminal 112 and the second output terminal of the Type-C charging circuit, a second resistor R2 is further connected between the negative electrode of the first diode D1 and the second output terminal of the Type-C charging circuit, and a third resistor R3 is further connected between the first voltage input terminal 113 and the positive electrode of the first diode D1.
The embodiment of the application also provides a charging module, which comprises the charging control circuit of any one of the embodiments.
The embodiment of the application also provides electronic equipment, which comprises the charging control circuit of any one of the embodiments.
In the description of embodiments of the present utility model, a description of reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present specification. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
It will be appreciated that references herein to the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are intended to be based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In addition, each functional unit in each embodiment of the present specification may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.
The foregoing description of the preferred embodiments is provided for the purpose of illustration only, and is not intended to limit the scope of the disclosure, since any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the disclosure are intended to be included within the scope of the disclosure.
Claims (10)
1. A charge control circuit, characterized in that is applied to the electronic equipment that includes the battery, electronic equipment includes first charging circuit and second charging circuit, charge control circuit includes selection control module, first reverse protection module and second reverse protection module, wherein:
the first reverse protection module is respectively connected with the first charging circuit and the selection control module and is used for protecting the first charging circuit from current and/or voltage;
the second reverse protection module is respectively connected with the second charging circuit and the battery and is used for protecting the second charging circuit from current and/or voltage;
the input end of the selection control module is respectively connected with the first reverse protection module, the second reverse protection module, the first charging circuit and the second charging circuit, and the output end of the selection control module is connected with the battery and is used for controlling the on-off state of the first charging circuit according to the first output voltage of the first charging circuit and the second output voltage of the second charging circuit so as to charge the battery through one of the first charging circuit and the second charging circuit.
2. The circuit of claim 1, wherein the selection control module comprises a selector and a power switch;
the first input end of the selector is connected with the output end of the first reverse protection module, the second input end of the selector is connected with the output end of the second charging circuit, the output end of the selector is connected with the first input end of the power switch, the selector is used for outputting a control signal according to the first output voltage and the second output voltage, and the control signal is used for controlling the on-off state of the power switch;
the second input end of the power switch is connected with the first output end of the first charging circuit, the output end of the power switch is connected with the battery, and the power switch is used for responding to the control signal and is placed in an on-off state indicated by the control signal.
3. The circuit of claim 2, wherein the charge control circuit further comprises a charge controller;
the input end of the charging controller is respectively connected with the output end of the second reverse protection module and the output end of the power switch, the output end of the charging controller is connected with the battery, and the charging controller is used for converting the received first output voltage or the second output voltage into the charging voltage of the battery so as to charge the battery through the charging voltage.
4. The circuit of claim 2, wherein the first reverse protection module comprises a first voltage input terminal, a second voltage input terminal, and a diode, the first voltage input terminal being connected to the first input terminal of the selector and the positive electrode of the diode, respectively, the second voltage input terminal being connected to the second output terminal of the first charging circuit and the negative electrode of the diode, respectively, the second voltage input terminal being the same as the input voltage of the first voltage input terminal;
the second output end of the first charging circuit is used for outputting a target signal, and the target signal is used for indicating the charging state of the first charging circuit, wherein the charging state comprises a state of not charging the battery and a state of charging the battery;
the diode is used for controlling the on-off state between the selector and the first charging circuit according to the target signal, the first input voltage of the first voltage input end and the second input voltage of the second voltage input end, wherein when the target signal is used for indicating that the first charging circuit is in the state of not charging the battery, the diode is in an off state;
when the diode is in the off state, the first output voltage is a first voltage; when the diode is in a conducting state, the first output voltage is a second voltage, and the first voltage is higher than the second voltage.
5. The circuit of claim 4, wherein the selector is to:
outputting a first control signal when one of the first output voltage and the second output voltage is the first voltage, wherein the first control signal is used for controlling the power switch to be in an off state; or when the first output voltage and the second output voltage are both the second voltage, outputting a second control signal, wherein the second control signal is used for controlling the power switch to be in a conducting state.
6. A circuit as claimed in any one of claims 2 to 5, wherein the selector is an or gate.
7. A circuit as claimed in any one of claims 1 to 5, wherein the second reverse protection module is a diode.
8. The circuit of any of claims 1-5, wherein the first charging circuit is a direct current, DC, charging circuit and the second charging circuit is a Type-C charging circuit.
9. A charging module comprising the charging control circuit of any one of claims 1-8.
10. An electronic device comprising the charge control circuit of any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223095592.9U CN218920024U (en) | 2022-11-17 | 2022-11-17 | Charging control circuit, charging module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223095592.9U CN218920024U (en) | 2022-11-17 | 2022-11-17 | Charging control circuit, charging module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218920024U true CN218920024U (en) | 2023-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223095592.9U Active CN218920024U (en) | 2022-11-17 | 2022-11-17 | Charging control circuit, charging module and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218920024U (en) |
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2022
- 2022-11-17 CN CN202223095592.9U patent/CN218920024U/en active Active
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