CN219960173U - Charging circuit with quick charging function and charging wire rod with quick charging function - Google Patents
Charging circuit with quick charging function and charging wire rod with quick charging function Download PDFInfo
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Abstract
The embodiment of the utility model provides a charging circuit with a quick charging function and a charging wire rod with the quick charging function, wherein the charging circuit comprises: the device comprises an input module, a switch module, a voltage conversion module, a first output module and at least one second output module, wherein the first output module supports a quick charging function; the input end of the input module is used for being connected with power supply equipment, and the output end of the input module is connected with the input end of the first output module, the input end of the voltage conversion module and the input end of the switch module; the input end of each second output module in the at least one second output module is connected with the output end of the switch module and the output end of the voltage conversion module; the output end of the first output module and the output end of each second output module in the at least one second output module are respectively used for being connected with one powered device.
Description
Technical Field
The present utility model relates to charging technologies, and in particular, to a charging circuit with a fast charging function and a charging wire with a fast charging function.
Background
Currently, in accessory industries such as mobile phones and notebooks, a charging wire (such as a charging wire or a data wire) is used as a bridge between a power receiving device and a charging device, and can connect the power receiving device and a power supply device, so that the power supply device charges the power receiving device through the charging wire. The charging wire generally comprises a single wire and a multi-output wire; the single wire is provided with an output end which can be connected with a charging device and a power receiving device, namely, the form from an end A to an end B; the multi-output wire has a plurality of output terminals, and is capable of connecting one charging device and a plurality of power receiving devices, namely, a terminal to B terminal and C terminal forms.
However, in the related art, the charging wire having a plurality of output terminals realizes the quick charging function by embedding a complex logic judgment program in the main control chip, but such main control chip generally has high cost, resulting in high charging wire cost.
Disclosure of Invention
In order to solve the above problems, an embodiment of the present utility model provides a charging circuit with a fast charging function, the charging circuit including: the device comprises an input module, a switch module, a voltage conversion module, a first output module and at least one second output module, wherein the first output module supports a quick charging function; wherein,,
the input end of the input module is used for being connected with power supply equipment, and the output end of the input module is connected with the input end of the first output module, the input end of the voltage conversion module and the input end of the switch module;
the input end of each second output module in the at least one second output module is connected with the output end of the switch module and the output end of the voltage conversion module;
the output end of the first output module and the output end of each second output module in the at least one second output module are respectively used for being connected with one powered device.
In the circuit, the switch module comprises a first switch and a second switch, and the first switch and the second switch are connected in series.
In the above circuit, when the input voltage of the input module is greater than or equal to the first voltage threshold, the first switch and the second switch are turned off, so that the power supply device supplies power to the power receiving device through the input module, the voltage conversion module and the second output module.
In the above circuit, when the input voltage of the input module is smaller than a first voltage threshold, the first switch and the second switch are turned on, so that the power supply device supplies power to the power receiving device through the input module, the first switch, the second switch and the second output module.
In the above circuit, the first switch includes a transistor, and the second switch includes a Metal-Oxide-semiconductor field effect transistor (MOSFET).
In the above circuit, the switch module further includes a diode; wherein the method comprises the steps of
The anode of the diode is connected with the input end of the input module, and the cathode of the diode is connected with the first switch;
the second switch is connected with the input ends of the first switch and the second output module respectively.
In the above circuit, the circuit further includes a first resistor; wherein,,
the output end of the voltage conversion module is connected with the input end of each second output module in the at least one second output module through the first resistor.
In the above circuit, the circuit further includes a first capacitor; wherein,,
the output end of the input module is connected with the input end of the voltage conversion module through the first capacitor.
In the circuit, the circuit further comprises a second capacitor; wherein,,
the output end of the voltage conversion module is connected with the input end of each second output module in the at least one second output module through the second capacitor.
The embodiment of the utility model also provides a charging wire rod with a quick charging function, which comprises the charging circuit.
The charging circuit with the quick charging function and the charging wire rod with the quick charging function provided by the embodiment of the utility model; wherein, the charging circuit includes: the device comprises an input module, a switch module, a voltage conversion module, a first output module and at least one second output module, wherein the first output module supports a quick charging function; the input end of the input module is used for being connected with power supply equipment, and the output end of the input module is connected with the input end of the first output module, the input end of the voltage conversion module and the input end of the switch module; the input end of each second output module in the at least one second output module is connected with the output end of the switch module and the output end of the voltage conversion module; the output end of the first output module and the output end of each second output module in the at least one second output module are respectively used for being connected with one powered device. According to the technical scheme provided by the embodiment of the utility model, the charging circuit is provided with a plurality of output modules; the first output module can rapidly charge the powered equipment based on the request of the powered equipment connected with the first output module, and the switch module can be switched on or off based on the voltage input by the input module so as to switch the power supply line for supplying power to the powered equipment connected with each second output module, so that safe charging is realized.
Drawings
FIG. 1 is a schematic diagram illustrating a first charging circuit according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram illustrating a second charging circuit according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram illustrating a third charge circuit according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram illustrating a fourth charging circuit according to an embodiment of the present utility model;
FIG. 5 is a schematic diagram showing the structural composition of a multi-split fast-charging wire according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram of a multi-split fast-charging wire according to an embodiment of the present utility model;
reference numerals illustrate:
101-an input module; 102-a switch module; a 103-voltage conversion module; 104-a first output module; 105-a second output module; 106-a first resistor; 107-a first capacitance; 108-a second capacitance; 1021-a first switch; 1022-second switch.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following detailed description of the specific technical solutions of the present utility model will be given with reference to the accompanying drawings in the embodiments of the present utility model.
The output interface types of the charging wire mainly comprise three types, namely Micro universal serial bus (USB, universal Serial Bus) (a traditional android mobile phone interface, which supports a common charging function), lightning USB (a high-speed multifunctional interface of apple equipment, which supports a common charging function) and Type-C USB (which supports a quick charging function).
In the related art, the multi-output wire can realize the quick charging function by a complex logic judgment program arranged in the main control chip, however, the main control chip has higher cost generally, so that the charging wire has higher cost.
Based on this, the utility model provides a charging circuit with a fast charging function, which is applied to a charging wire, and is provided with a plurality of output ends (including a first output end and a plurality of second output ends), wherein the first output end supports the fast charging function. The fast charging of the powered device connected with the first output end can be realized through the first output end, and meanwhile, the switch module can switch on or off states based on the voltage of the input module, so that the power supply line of the powered device connected with the second output end is switched, and the safe charging is realized.
The embodiment of the utility model provides a charging circuit with a quick charging function, as shown in fig. 1, the charging circuit comprises: an input module 101, a switch module 102, a voltage conversion module 103, a first output module 104 and at least one second output module 105, the first output module 104 supporting a fast charge function; wherein,,
the input end of the input module 101 is used for being connected with a power supply device, and the output end of the input module 101 is connected with the input end of the first output module 104, the input end of the voltage conversion module 103 and the input end of the switch module 102;
the input end of each second output module 105 of the at least one second output module is connected with the output end of the switch module 102 and the output end of the voltage conversion module 103;
the output of the first output module 104 and the output of each second output module 105 of the at least one second output module are respectively configured to be connected to a powered device.
In practical application, the power supply device may include a power supply, and the power supply device may be capable of charging the power receiving device through the charging circuit; the powered device may include a mobile device, such as a cell phone, to which embodiments of the present utility model are not limited.
In addition, the voltage conversion module 103 is configured to perform voltage conversion processing on the output voltage of the input module 101, so as to implement a step-down function; the Type of the first output module may include Type-C USB; the type of the second output module may include Lightning USB or Micro USB.
In practice, the switch module 102 may be composed of a plurality of switches, so that the switch module 102 is subsequently placed in an on state or an off state by controlling the switches.
Specifically, in one embodiment, as shown in fig. 2, the switch module 102 includes a first switch 1021 and a second switch 1022, where the first switch 1021 and the second switch 1022 are connected in series.
Here, in actual application, the first switch 1021 is connected to the output terminal of the input module 101, and the second switch 1022 is connected to the input terminal of the second output module 105; specifically, in an embodiment, the first switch 1021 may include a transistor, and the second switch 1022 may include a MOSFET.
In practical application, the first switch 1021 may include an NPN transistor and a PNP transistor; the second switch 1022 may include an N-type MOSFET (abbreviated as NMOS) and a P-type MOSFET (abbreviated as PMOS), which are not limited by the specific types of transistors and MOSFETs according to the embodiments of the present utility model.
In an embodiment, the switch module 102 may further include a diode; wherein the method comprises the steps of
The anode of the diode is connected with the input end of the input module 101, and the cathode of the diode is connected with the first switch 1021;
the second switch 1022 is connected to the input terminals of the first switch 1021 and the second output module, respectively.
In practical application, in order to make the diode, the first switch 1021 and the second switch 1022 be in a normal working state, a voltage dividing and dividing resistor may be disposed in the switch module 102, so as to adjust the voltage and/or current in the circuit through the voltage dividing and dividing resistor, thereby meeting the voltage and/or current required by the diode, the first switch 1021 and the second switch 1022; the values of the voltage dividing and dividing resistors can be set according to needs, and the embodiment of the utility model is not limited to the values.
For example, three voltage dividing and shunt resistors, a second resistor, a third resistor, and a fourth resistor, respectively, may be provided in the switch module 102. Assuming that the first switch 1021 includes a PNP transistor and the second switch 1022 includes a PMOS, the second resistor may be connected to the input terminal of the input module 101 and the anode of the diode, respectively; an emitter (e) of the first switch 1021 is connected with a cathode of the diode, a collector (c) of the first switch 1021 is connected with the third resistor, and a base (b) of the first switch 1021 is connected with the fourth resistor; the gate (G) and the source (S) of the second switch 1022 are connected to the fourth resistor, and the drain of the second switch 1022 is connected to the output of the second output module 105.
In this case, in the actual application, when the power receiving apparatus is charged, the charging circuit may be used to charge a plurality of power receiving apparatuses at the same time, that is, the charging circuit is in a multi-charging state. For example, in the case of charging three powered devices by using the charging circuit, a first powered device may be connected to an output terminal of the first output module 104, and a second powered device and a third powered device may be connected to output terminals of one second output module 105, respectively.
In the multi-charging state, the first switch 1021 and the second switch 1022 may be controlled to be turned on or off according to the input voltage of the input module 101, so as to adjust the power supply mode of the power supply device for supplying power to the power receiving device.
Based on this, in an embodiment, in a case where the input voltage of the input module 101 is greater than or equal to the first voltage threshold, the first switch 1021 and the second switch 1022 are turned off, so that the power supply apparatus supplies power to the power receiving apparatus through the input module 101, the voltage conversion module 103, and the second output module 105.
In practical application, the value of the first voltage threshold may be set according to needs, for example, 5.2V, which is not limited in the embodiment of the present utility model.
In actual application, when the input voltage of the input module 101 is greater than or equal to the first voltage threshold, the first switch 1021 and the second switch 1022 are turned off, and at this time, the voltage conversion module 103 can perform voltage conversion processing on the input voltage of the input module 101, so as to supply power to the power receiving device through the voltage after the voltage conversion processing; wherein, the voltage conversion module 103 may include a buck chip, a direct current conversion (DCDC) enabled module, a first inductor, and a third capacitor; the model of the buck chip can comprise STI3470L, the enabling DCDC module comprises a fifth resistor, and the value of the fifth resistor can be set according to the requirement, such as 10K ohms; the capacity of the first inductor may be set as required, for example, to 4.7 microhenries (μh); the capacity of the third capacitor may be set as required, for example, to 100 nanofarads (nF).
Here, the operating principle of the voltage conversion module 103 is as follows: the third capacitor is connected with pins 1 and 6 of the buck chip; the first inductor is connected with the pin 6 of the buck chip and the third capacitor; the fifth resistor is connected with pins 4 and 5 of the buck chip respectively. The buck chip can acquire the input voltage through the pin 5 to perform voltage conversion processing on the input voltage, and output the voltage after the voltage conversion processing through the pin 6 to supply power to the power receiving device through the voltage after the voltage conversion processing.
For example, assuming that a first power receiving device is connected to an output terminal of the first output module 104, a second power receiving device and a third power receiving device are respectively connected to output terminals of one second output module 105, the power supply module provides an input voltage of 6V to the input module 101, and since the input voltage is greater than the first voltage threshold (5.2V), the diode is in an off state, and accordingly, the first switch 1021 (PNP transistor) and the second switch 1022 (PMOS) are also in an off state, at this time, the power supply module can provide voltages (5V) after voltage conversion processing to the second power receiving device and the third power receiving device through the input module 101, the voltage conversion module 103 and the second output module 105, so as to supply power to the second power receiving device and the third power receiving device through the voltages after voltage conversion processing, respectively. Meanwhile, the power supply module can directly supply power to the first powered device through the input module 101 and the first output module 104; wherein, in the case that the input voltage provided by the power supply module to the input module 101 is greater than the first voltage threshold, the input voltage may be referred to as a fast charge voltage.
In practical applications, in the multi-charging state, the power supply may also be provided to the power receiving device through the switch circuit 103 according to the input voltage of the input module 101.
Based on this, in an embodiment, in a case where the input voltage of the input module 101 is less than the first voltage threshold, the first switch 1021 and the second switch 1022 are turned on, so that the power supply device supplies power to the power receiving device through the input module, the first switch 1021, the second switch 1022, and the second output module 105.
In actual application, when the input voltage of the input module 101 is smaller than the first voltage threshold, the first switch 1021 and the second switch 1022 are turned on, and at this time, the input voltage of the input module 101 can be directly output to the powered device through the first switch 1021, the second switch 1022 and the second output module 105, so as to supply power to the powered device.
For example, assuming that a first powered device is connected to the output of the first output module 104, a second powered device and a third powered device are respectively connected to the output of a second output module 105, the power supply module provides the input module 101 with an input voltage of 4.9V, since the input voltage is smaller than the first voltage threshold (5.2V), the diode will be in a conductive state, and accordingly the first switch 1021 (PNP transistor) is conductive, such that the voltage of the gate (G) of the second switch 1022 (PMOS) is equal to the voltage of the source stage (S) (i.e., V GS =0v), the second switch 1022 is also in the on state. At this time, the power supply module can supply the input voltage (4.9V) to the second power receiving apparatus and the third power receiving apparatus through the input module 101, the first switch 1021, the second switch 1022, and the second output module 105 to supply power to the second power receiving apparatus and the third power receiving apparatus through the input voltage. Meanwhile, the power supply module is further capable of supplying power to the first powered device through the input module 101 and the first output module 104. In the above scenario, by the first output module 104 and the second output module 105, normal charging of the first power receiving apparatus, the second power receiving apparatus, and the third power receiving apparatus can be achieved.
As can be seen from the above description, in the case where the input voltage of the input module 101 is greater than or equal to the first voltage threshold, since the input voltage is large, it is necessary to be able to convert the input voltage by the voltage conversion module 103 to reduce the power supply voltage to the power receiving device connected to the second output module 105; in the case where the input voltage of the input module 101 is smaller than the first voltage threshold, the power receiving device connected to the second output module 105 may be directly supplied with power by the input voltage due to the smaller value of the input voltage. In this way, safe charging is achieved.
In addition, in the present utility model, by controlling the on or off states of the first switch 1021 and the second switch 1022, the power supply line of the power receiving device connected to the second output module 105 can be switched, without providing a main control chip to realize the above functions, thereby reducing the cost of the charging wire.
In practical application, the charging circuit can be used for charging a powered device, i.e. the charging circuit is in a single charging state. In the above scenario, the power receiving device may be connected to the output terminal of the first output module 104 or may be connected to the output terminal of the second output module 105.
Specifically, in the case where a powered device is connected to the output terminal of the first output module 104, the power supply device may directly charge the powered device through the input module 101 and the first output module 104. In the above process, if the power supply device supports the fast charging function (i.e., the power supply device can provide the fast charging voltage), the first output module 104 can support the fast charging function, so as to implement fast charging of the powered device.
In a case where a power receiving device is connected to the output terminal of the second output module 105, if the input voltage provided by the power supply device to the input module 101 is less than the first voltage threshold, the first switch 1021 and the second switch 1022 are turned on, so that the power supply device supplies power to the power receiving device through the input module 101, the first switch 1021, the second switch 1022, and the second output module 105. That is, the second output module 105 can support a normal charging function to achieve normal charging of the powered device.
In practical application, during the process of supplying power to the power receiving device by using the power supply device and the charging circuit, overcurrent protection may occur. This is because: the charging current required by the powered device is typically large, such as 1.5A, while the maximum current configured by the powered device is typically small, such as 3A. If the power supply device supplies power to three power receiving devices through the charging circuit at the same time, the charging current in the charging circuit can reach 4.5A and exceed the maximum current configured by the power supply device, so that the problem of overcurrent protection can occur.
In order to solve the above-described problem of the overcurrent protection, a shunt resistor may be provided in the charging circuit to control the charging current in the charging circuit through the shunt resistor.
Based on this, as shown in fig. 3, in an embodiment, the circuit may further include a first resistor 106; wherein,,
the output of the voltage conversion module 103 is connected to the input of each of the at least one second output module 105 via the first resistor 106.
In practical application, the value of the first resistor 106 may be set according to needs, for example, 0.05 ohm, which is not limited in the embodiment of the present utility model.
For example, in the case of charging three powered devices by using the charging circuit, a first powered device may be connected to an output terminal of the first output module 104, and a second powered device and a third powered device may be connected to output terminals of one second output module 105, respectively. By providing the first resistor 106, the charging current of the second output module 105 can be reduced, so as to avoid the problem that the power supply equipment is over-current due to the over-large charging current in the charging circuit.
In practical application, a plurality of filtering/energy-storing capacitors may be disposed between the input module 101 and the second output module 105, so that when the power supply device stops charging the power receiving device through the charging circuit, interference and/or noise can be filtered through the filtering/energy-storing capacitors, and meanwhile, larger fluctuation of voltage in the charging circuit can be avoided, and stability of voltage in the charging circuit is guaranteed.
Specifically, in an embodiment, as shown in fig. 4, the circuit may further include a first capacitor 107; wherein,,
the output terminal of the input module 101 is connected to the input terminal of the voltage conversion module 103 through the first capacitor 107.
In practice, the first capacitor 107 may include a plurality of first sub-capacitors connected in parallel. Illustratively, assuming that the first capacitor 107 includes two first sub-capacitors connected in parallel, the capacities of the first sub-capacitors may be set to 22 and 0.1 micro-farads (μf), respectively, which is not limited by the embodiment of the present utility model.
Here, the first capacitor 107 operates according to the following principle: for high frequency signals, the impedance of the capacitor is low, so that noise and/or interference in the output voltage of the input module 101 can be bypassed by the first capacitor 107, thereby achieving the purpose of filtering. In addition, the capacitor also has an energy storage function, and in the case that the power supply device stops charging the power receiving device, the first capacitor 107 can release the stored electric energy, so as to provide a stable voltage for the voltage conversion module 103.
In one embodiment, as shown in fig. 4, the circuit may further include a second capacitor 108; wherein,,
the output of the voltage conversion module 103 is connected to the input of each second output module 105 of the at least one second output module via the second capacitor 108.
In practice, the second capacitor 108 may include a plurality of second sub-capacitors connected in parallel, so that the capacity of the second capacitor 108 can be increased to extend the duration of discharging the electric energy through the second capacitor 108.
Illustratively, assuming that the second capacitor 108 includes two parallel second sub-capacitors, the capacities of the second sub-capacitors may be set to 22 and 0.1 micro-farads (μf), respectively, and embodiments of the present utility model are not limited thereto.
Here, the second capacitor 108 operates according to the following principle: noise and/or interference in the output voltage of the voltage conversion module 103 can be bypassed through the second capacitor 108, so as to achieve the purpose of filtering. In addition, in the case where the power supply device stops charging the power receiving device, the second capacitor 108 can release the stored electric energy to provide a stable voltage to the second output module 105, so as to supply power to the power receiving device.
The embodiment of the utility model also provides a charging wire rod with a quick charging function, which comprises the charging circuit with the quick charging function.
The charging circuit with the quick charging function and the charging wire rod with the quick charging function provided by the embodiment of the utility model; wherein, the charging circuit includes: an input module 101, a switch module 102, a voltage conversion module 103, a first output module 104 and at least one second output module 105, the first output module 104 supporting a fast charge function; the input end of the input module 101 is used for being connected with a power supply device, and the output end of the input module 101 is connected with the input end of the first output module 104, the input end of the voltage conversion module 103 and the input end of the switch module 102; the input end of each second output module 105 of the at least one second output module is connected with the output end of the switch module 102 and the output end of the voltage conversion module 103; the output of the first output module 104 and the output of each second output module 105 of the at least one second output module are respectively configured to be connected to a powered device. According to the technical scheme provided by the embodiment of the utility model, the charging circuit is provided with a plurality of output modules; the first output module can rapidly charge the powered equipment based on the request of the powered equipment connected with the first output module, and the switch module can be switched on or off based on the voltage input by the input module so as to switch the power supply line for supplying power to the powered equipment connected with each second output module, so that safe charging is realized.
The present utility model will be described in further detail with reference to examples of application.
In an application embodiment of the present utility model, as shown in fig. 5, a schematic structural diagram of a one-to-multiple fast charging wire is provided, which specifically includes an input end (i.e. the input module 101), a detection module (i.e. the switch module 102), a step-down module (i.e. the voltage conversion module 103), an output end 1 (i.e. the first output module 104), an output end 2 and an output end 3 (i.e. the second output module 105); the detection module comprises resistors R1, R2 and R3, a diode D1, a triode D2 and a MOSFETQ2; the buck module 602 includes a resistor R4, a buck chip U1, and an inductor L1.
In practical application, one power receiving device can be charged by one multi-split quick charging wire, namely one multi-split quick charging wire is in a single charging state, and a plurality of power receiving devices can be charged by one multi-split quick charging wire, namely one multi-split quick charging wire is in a multi-charging state.
Specifically, in the single charge state, when the output terminal 1 is connected to one power receiving apparatus and the input terminal is connected to the power supply source (i.e., the above power supply apparatus), the state is in the through state, and at this time, if the power supply source supports the fast charge function, the output terminal 1 supports the fast charge function; when the output terminal 2 or the output terminal 3 is connected with one powered device, and the input terminal is connected with a power supply, 5V voltage can be output, that is, when the output terminal 2 or the output terminal 3 is used alone, only the normal charging function is supported.
In the multi-charge state, as shown in FIG. 6, when the voltage at the input terminal is lower than 5.2V, Q1 in the detection module 601 is turned on, and accordingly, the voltage at the gate (G) of Q2 is equal to the voltage at the source stage (S), i.e. V GS =0v, q2 is on, at which time the voltage at the input (which may be referred to as the first charging voltage) is passed through to output 2 and output 3; that is, in the case that the voltage at the input terminal is lower than 5.2V, all three output terminals are normally charged, and do not pass through the step-down module 602. When the voltage of the input end is greater than or equal to 5.2V, the detection is performedWhen the test module 601 judges that the quick charge voltage is input, the output end 1 keeps the through quick charge voltage, namely 5.2V and above; the output end 2 and the output end 3 generate a second charging voltage (5V) through the voltage reduction module 602, and control charging currents of the output end 2 and the output end 3 through a resistor R10 (namely the first resistor 106), so that overcurrent of input end equipment caused by high current of the output end is avoided, and overcurrent protection is avoided.
It should be noted that: in embodiments of the present utility model, the terms "first," "second," and the like are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
In addition, the embodiments of the present utility model may be arbitrarily combined without any collision. The foregoing outlines features of several embodiments so that those skilled in the art may better understand the aspects of the present utility model. Those skilled in the art should appreciate that they may readily use the present utility model as a basis for designing or modifying other methods and structures for carrying out the same purposes and/or achieving the same advantages of the embodiments introduced herein. Those skilled in the art should also realize that such equivalent constructions do not depart from the spirit and scope of the present disclosure, and that they may make various changes, substitutions, and alterations herein without departing from the spirit and scope of the present disclosure.
Claims (10)
1. A charging circuit with a quick charge function, comprising: the device comprises an input module, a switch module, a voltage conversion module, a first output module and at least one second output module, wherein the first output module supports a quick charging function; wherein,,
the input end of the input module is used for being connected with power supply equipment, and the output end of the input module is connected with the input end of the first output module, the input end of the voltage conversion module and the input end of the switch module;
the input end of each second output module in the at least one second output module is connected with the output end of the switch module and the output end of the voltage conversion module;
the output end of the first output module and the output end of each second output module in the at least one second output module are respectively used for being connected with one powered device.
2. The circuit of claim 1, wherein the switch module comprises a first switch and a second switch, the first switch and the second switch being connected in series.
3. The circuit of claim 2, wherein the circuit further comprises a logic circuit,
and under the condition that the input voltage of the input module is greater than or equal to a first voltage threshold value, the first switch and the second switch are cut off, so that the power supply equipment supplies power to the power receiving equipment through the input module, the voltage conversion module and the second output module.
4. The circuit of claim 2, wherein the circuit further comprises a logic circuit,
and under the condition that the input voltage of the input module is smaller than a first voltage threshold, the first switch and the second switch are conducted so that the power supply equipment supplies power to the power receiving equipment through the input module, the first switch, the second switch and the second output module.
5. The circuit of any of claims 2 to 4, wherein the first switch comprises a transistor and the second switch comprises a metal oxide semiconductor field effect transistor, MOSFET.
6. The circuit of any one of claims 2 to 4, wherein the switching module further comprises a diode; wherein the method comprises the steps of
The anode of the diode is connected with the input end of the input module, and the cathode of the diode is connected with the first switch;
the second switch is connected with the input ends of the first switch and the second output module respectively.
7. The circuit of claim 1, wherein the circuit further comprises a first resistor; wherein,,
the output end of the voltage conversion module is connected with the input end of each second output module in the at least one second output module through the first resistor.
8. The circuit of claim 1, wherein the circuit further comprises a first capacitance; wherein,,
the output end of the input module is connected with the input end of the voltage conversion module through the first capacitor.
9. The circuit of claim 1, wherein the circuit further comprises a second capacitor; wherein,,
the output end of the voltage conversion module is connected with the input end of each second output module in the at least one second output module through the second capacitor.
10. A charging wire having a quick charge function, comprising the charging circuit according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321277314.7U CN219960173U (en) | 2023-05-23 | 2023-05-23 | Charging circuit with quick charging function and charging wire rod with quick charging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321277314.7U CN219960173U (en) | 2023-05-23 | 2023-05-23 | Charging circuit with quick charging function and charging wire rod with quick charging function |
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| CN219960173U true CN219960173U (en) | 2023-11-03 |
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| CN202321277314.7U Active CN219960173U (en) | 2023-05-23 | 2023-05-23 | Charging circuit with quick charging function and charging wire rod with quick charging function |
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| CN (1) | CN219960173U (en) |
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