CN220754394U - Wireless earphone charging circuit and charging bin - Google Patents
Wireless earphone charging circuit and charging bin Download PDFInfo
- Publication number
- CN220754394U CN220754394U CN202322406750.6U CN202322406750U CN220754394U CN 220754394 U CN220754394 U CN 220754394U CN 202322406750 U CN202322406750 U CN 202322406750U CN 220754394 U CN220754394 U CN 220754394U
- Authority
- CN
- China
- Prior art keywords
- charging
- capacitor
- unit
- battery
- load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a wireless earphone charging circuit and a charging bin. The circuit provided by the embodiment of the utility model comprises a first charging module, wherein a first input end of the first charging module is connected with a battery connecting end, a first output end of the first charging module is connected with a load connecting end, the battery connecting end is used for connecting a battery, the load connecting end is used for connecting a load circuit, and the first charging module is used for outputting an electric signal of the battery to the load circuit; the second input end of the second charging module is connected with the battery connecting end, the second output end of the second charging module is connected with the load connecting end, and the second charging module is used for outputting the electric signal of the battery to the load circuit; the control module is connected with the second charging module and is used for sending a control signal to control the connection and disconnection of the second charging module; wherein the internal resistance of the first charging module is greater than the internal resistance of the second charging module. The technical scheme realizes the improvement of the endurance time of the charging bin.
Description
Technical Field
The utility model relates to the technical field of charging, in particular to a wireless earphone charging circuit and a charging bin.
Background
Currently, TWS (True Wireless Stereo, real wireless stereo) headphones are popular with users because they are not constrained by wires and are convenient to store. TWS earphone receives the volume restriction, and battery capacity is less, consequently needs to cooperate the storehouse of charging to use in order to improve duration. However, in order to improve portability, the battery capacity of the existing charging bin cannot be improved, and it is difficult to maintain the use of the TWS earphone for a long time. Under the condition that portability is kept, how to improve the endurance time of the charging bin becomes a problem to be solved.
Disclosure of Invention
The utility model provides a wireless earphone charging circuit and a charging bin, which are used for solving the problem that the conventional wireless earphone charging bin is short in endurance time for maintaining portability.
According to an aspect of the present utility model, there is provided a wireless earphone charging circuit including:
the first input end of the first charging module is connected with the battery connecting end, the first output end of the first charging module is connected with the load connecting end, the battery connecting end is used for connecting a battery, the load connecting end is used for connecting a load circuit, and the first charging module is used for outputting an electric signal of the battery to the load circuit;
the second input end of the second charging module is connected with the battery connecting end, the second output end of the second charging module is connected with the load connecting end, and the second charging module is used for outputting the electric signal of the battery to the load circuit;
the control module is connected with the second charging module and is used for sending a control signal to control the connection and disconnection of the second charging module;
wherein the internal resistance of the first charging module is greater than the internal resistance of the second charging module.
Optionally, the first charging module includes:
the first charging unit is used for acquiring an electric signal and outputting the electric signal to the load circuit;
the first end of the first filtering unit is connected between the battery connecting end and the first input end, the second end of the first filtering unit is connected between the load connecting end and the first output end, and the first filtering unit is used for filtering the electric signals acquired and output by the first charging unit.
Optionally, the first filtering unit includes:
a first capacitor, a second capacitor, a third capacitor, and a fourth capacitor;
the first end of the first capacitor is connected with the battery connecting end and the first end of the second capacitor, the second end of the first capacitor is grounded, the first end of the second capacitor is connected with the first input end, the second end of the second capacitor is grounded, and the first capacitor and the second capacitor are used for filtering the electric signal acquired by the first charging unit;
the first end of the third capacitor is connected with the first output end and the first end of the fourth capacitor, the second end of the third capacitor is grounded, the first end of the fourth capacitor is connected with the load connection end, the second end of the fourth capacitor is grounded, and the third capacitor and the fourth capacitor are used for filtering electric signals output by the first charging unit.
Optionally, the second charging module includes:
the second charging unit is used for acquiring an electric signal and outputting the electric signal to the load circuit;
the first end of the second filtering unit is connected between the battery connecting end and the second input end, the second end of the second filtering unit is connected between the load connecting end and the second output end, and the second filtering unit is used for filtering the electric signals acquired and output by the second charging unit.
Optionally, the second charging unit includes:
the first diode is used for receiving the electric signal when being conducted and outputting the electric signal to the second output end;
the first control end is connected with the first diode and the control module and is used for controlling the on-off of the first diode according to the control signal.
Optionally, the second filtering unit includes:
a fifth capacitor, a sixth capacitor, a seventh capacitor, and an eighth capacitor;
the first end of the fifth capacitor is connected with the battery connecting end and the first end of the sixth capacitor, the second end of the fifth capacitor is grounded, the first end of the sixth capacitor is connected with the second input end, the second end of the sixth capacitor is grounded, and the fifth capacitor and the sixth capacitor are used for filtering the electric signals acquired by the second charging unit;
the first end of the seventh capacitor is connected with the second output end and the first end of the eighth capacitor, the second end of the seventh capacitor is grounded, the first end of the eighth capacitor is connected with the load connection end, the second end of the eighth capacitor is grounded, and the seventh capacitor and the eighth capacitor are used for filtering the electric signals output by the second charging unit.
Optionally, the first charging module further includes:
and the first end of the third filtering unit is connected with the power supply and the power supply input end of the first charging unit, the second end of the third filtering unit is grounded, and the third filtering unit is used for filtering a voltage signal output by the power supply.
Optionally, the first charging unit is an SGM4151X charge-discharge chip.
Optionally, the first diode is a MAX4020X ideal diode.
In a second aspect, an embodiment of the present utility model provides a charging bin, including a wireless headset charging circuit of any one of the above.
The wireless earphone charging circuit provided by the embodiment of the utility model comprises a first charging module, a second charging module and a control module. The first input end of the first charging module is connected with the battery connecting end, and the first output end of the first charging module is connected with the load connecting end. The second input end of the second charging module is connected with the battery connecting end, and the second output end of the second charging module is connected with the load connecting end. The control module is connected with the second charging module and used for sending out a control signal to control the connection and disconnection of the second charging module, the battery connecting end is used for connecting a battery, and the load connecting end is used for connecting a load circuit. The first charging module and the second charging module are used for outputting the electric signal of the battery to the load circuit, and the internal resistance of the first charging module is larger than that of the second charging module. According to the wireless earphone charging circuit provided by the utility model, the second charging module with smaller internal resistance is selected to charge the wireless earphone by controlling the on-off of the second charging module, so that the power consumption lost in the charging process is reduced, and the endurance time of the charging bin is prolonged.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the utility model or to delineate the scope of the utility model. Other features of the present utility model will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a wireless earphone charging circuit according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of another wireless earphone charging circuit according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a wireless earphone charging circuit according to another embodiment of the present utility model;
fig. 4 is a schematic circuit diagram of a wireless earphone charging circuit according to an embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a charging bin according to an embodiment of the present utility model.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a schematic structural diagram of a wireless earphone charging circuit according to an embodiment of the present utility model. Referring to fig. 1, the wireless earphone charging circuit provided in the embodiment of the utility model includes a first charging module 10, a first input end of the first charging module 10 is connected with a battery connection end a, a first output end of the first charging module 10 is connected with a load connection end B, the battery connection end a is used for connecting a battery, the load connection end B is used for connecting a load circuit, and the first charging module 10 is used for outputting an electrical signal of the battery to the load circuit. The second charging module 20, the second input end of the second charging module 20 is connected with the battery connection end a, the second output end of the second charging module 20 is connected with the load connection end B, and the second charging module 20 is used for outputting the electric signal of the battery to the load circuit. The control module 30, the control module 30 is connected with the second charging module 20, and the control module 30 is used for sending out a control signal to control the on and off of the second charging module 20. Wherein the internal resistance of the first charging module 10 is greater than the internal resistance of the second charging module 20.
Specifically, the wireless earphone charging circuit is applied to the charging bin of wireless earphone. The bin that charges of wireless earphone has promoted portability, and the less of general design results in can be for wireless earphone the number of times less.
The wireless earphone charging circuit of the embodiment of the utility model comprises a first charging module 10, a second charging module 20 and a control module 30, and is connected with a battery through a battery connecting end A and is connected with a load circuit through a load connecting end B. The wireless earphone is connected with the load circuit through a charging terminal of the load circuit during charging. The electrical signal of the battery may be transmitted to the load circuit through the first charging module 10 and/or the second charging module 20, thereby implementing the charging process of the wireless headset. The internal resistance of the first charging module 10 is greater than the internal resistance of the second charging module 20, and the internal resistance of the second charging module 20 is smaller, for example, the resistance value is close to 0.
Therefore, when both the first charging module 10 and the second charging module 20 are turned on, the electrical signal is preferentially output to the load circuit through the charging loop of the second charging module 20, so that the power consumption lost in the charging process is reduced, and the endurance time of the charging bin is improved. The control module 30 may send a control signal to control the on/off of the second charging module 20, so that the charging bin may select the charging circuit according to the user's requirement. The first charging module 10 and the second charging module 20 may also be standby for each other, switching to one charging circuit when the other charging circuit fails.
When the wireless earphone is charged through the charging bin provided with the wireless earphone charging circuit, the wireless earphone is connected with a load circuit of the charging bin, and the battery outputs an electric signal. When the control module 30 sends a control signal to control the second charging module 20 to be turned on, an electrical signal is input into the second charging module 20 through the battery connection terminal a, and is output from the load connection terminal B to the load circuit, so as to charge the wireless earphone. When the control module 30 issues a control signal to control the disconnection of the second charging module 20. The electric signal is input into the first charging module 10 through the battery connection terminal a, and is output to the load circuit from the load connection terminal B, so as to charge the wireless earphone. The power consumption lost in the charging process can be reduced by charging the load through the charging loop of the second charging module 20, and the endurance time of the charging bin is improved.
According to the wireless earphone charging circuit provided by the embodiment of the utility model, the first charging module and the second charging module with smaller internal resistance are arranged, so that the wireless earphone can be charged by selecting the charging loop of the second charging module with smaller internal resistance through the control module in the charging process, the power consumption lost in the charging process is reduced, and the endurance time of the charging bin is prolonged.
Optionally, fig. 2 is a schematic structural diagram of another wireless earphone charging circuit according to an embodiment of the present utility model. On the basis of the above embodiment, referring to fig. 2, the first charging module 10 includes a first charging unit 11, a first input terminal of the first charging unit 11 is connected to the battery connection terminal a, a first output terminal of the first charging unit 11 is connected to the load connection terminal B, and the first charging unit 11 is configured to obtain an electrical signal and output the electrical signal to the load circuit. The first filtering unit 12, a first end of the first filtering unit 12 is connected between the battery connection end a and the first input end, a second end of the first filtering unit 12 is connected between the load connection end B and the first output end, and the first filtering unit 12 is configured to filter the electrical signal acquired and output by the first charging unit 11.
Specifically, the first charging module 10 includes a first charging unit 11 and a first filtering unit 12. The first charging module 10 is connected between the battery connection terminal a and the load connection terminal B, and the first charging unit 11 may obtain an electrical signal output by the battery and output the electrical signal to the load circuit. The first charging unit 11 may be a charge-discharge chip, a charge-discharge circuit, or other devices having charge-discharge functions, or the like.
A first end of the first filter unit 12 is connected to the battery connection terminal a and a first input terminal of the first charging unit 11, and a second end of the first filter unit 12 is connected to the load connection terminal B and a first output terminal of the first charging unit 11. The first filtering unit 12 is used for filtering the electric signal input by the battery and the electric signal output by the first charging unit 11, so as to improve the working stability of the first charging unit 11 and reduce the output fluctuation.
Optionally, with continued reference to fig. 2 based on the above embodiment, the first filtering unit 12 includes a first capacitor C1, a second capacitor C2, a third capacitor C3, and a fourth capacitor C4. The first end of the first capacitor C1 is connected with the first end of the battery connecting end A and the first end of the second capacitor C2, the second end of the first capacitor C1 is grounded, the first end of the second capacitor C2 is connected with the first input end, the second end of the second capacitor C2 is grounded, and the first capacitor C1 and the second capacitor C2 are used for filtering electric signals acquired by the first charging unit 11. The first end of the third capacitor C3 is connected with the first output end and the first end of the fourth capacitor C4, the second end of the third capacitor C3 is grounded, the first end of the fourth capacitor C4 is connected with the load connection end B, the second end of the fourth capacitor C4 is grounded, and the third capacitor C3 and the fourth capacitor C4 are used for filtering the electric signal output by the first charging unit 11.
Specifically, the first filtering unit 12 includes a first capacitor C1 and a second capacitor C2 disposed between the battery connection terminal a and the first charging unit 11, and further includes a third capacitor C3 and a fourth capacitor C4 disposed between the first charging unit 11 and the load connection terminal B. The electric signal input by the battery is input into the first charging unit 11 after being filtered by the voltages of the first capacitor C1 and the second capacitor C2, so that the working stability of the first charging unit 11 is improved, the electric signal output by the first charging unit 11 is output to the load connecting end B after being filtered by the voltages of the third capacitor C3 and the fourth capacitor C4, the stability of the output electric signal is improved, and the output fluctuation is reduced. This arrangement can further improve the stability of the charging process.
Optionally, fig. 3 is a schematic structural diagram of a wireless earphone charging circuit according to another embodiment of the present utility model. On the basis of the above embodiment, referring to fig. 3, the second charging module 20 includes a second charging unit 21, a second input terminal of the second charging unit 21 is connected to the battery connection terminal a, a second output terminal of the second charging unit 21 is connected to the load connection terminal B, and the second charging unit 21 is configured to acquire an electrical signal and output the electrical signal to the load circuit. The first end of the second filtering unit 22 is connected between the battery connection end a and the second input end, the second end of the second filtering unit 22 is connected between the load connection end B and the second output end, and the second filtering unit 22 is used for filtering the electric signal acquired and output by the second charging unit 21.
Specifically, the second charging module 20 includes a second charging unit 21 and a second filtering unit 22. The second charging module 20 is connected between the battery connection terminal a and the load connection terminal B, and the second charging unit 21 may obtain an electrical signal output by the battery and output the electrical signal to the load circuit. The internal resistance of the second charging unit 21 is smaller and smaller than that of the first charging unit 11, when the second charging unit 21 is conducted, an electric signal output by the battery is output to the load output end preferentially through a loop of the second charging unit 21, so that the power consumption of the second charging unit 21, which is lost during charging, is smaller, and the cruising effect of the charging bin is improved.
The second charging unit 21 may be an ideal diode or other less resistive device, etc.
The first end of the second filter unit 22 is connected to the battery connection terminal a and the first input terminal of the second charging unit 21, and the second end of the second filter unit 22 is connected to the load connection terminal B and the first output terminal of the second charging unit 21. The second filtering unit 22 is used for filtering the electric signal input by the battery and the electric signal output by the second charging unit 21, so as to improve the working stability of the second charging unit 21 and reduce the output fluctuation.
Optionally, with continued reference to fig. 3 based on the above embodiment, the second charging unit 21 includes a first diode D, a first end of the first diode D is connected to the second input terminal, a second end of the first diode D is connected to the second output terminal, and the first diode D is configured to receive the electrical signal when turned on and output the electrical signal to the second output terminal. The first control end E is connected with the first diode D and the control module 30, and the first control end E is used for controlling the on and off of the first diode D according to a control signal.
Specifically, the second charging unit 21 includes a first diode D for transmitting an electric signal, which is an ideal diode having an internal resistance close to 0, and a first control terminal E for controlling the first diode D. The first control terminal E may receive a control signal from the control module 30, and control on and off of the first diode D according to the control signal. When the first diode D is turned on, since the internal resistance of the first diode D is smaller, the electric signal output from the battery is input to the second charging unit 21, and the first diode D acquires the electric signal and outputs it to the load output terminal, so that the power consumption lost by the second charging unit 21 during charging is smaller. When the first diode D is turned off, the charging circuit charges through the first charging unit 11. The control module 30 may send a control signal to control the on and off of the first diode D, so that the charging bin may select the charging loop according to the user's requirement. By way of example, the control module 30 may be a single chip or a control circuit or the like. The power consumption that the in-process lost of charging can further be reduced in this kind of setting, promotes the duration in storehouse of charging.
Optionally, with continued reference to fig. 3 based on the above embodiment, the second filtering unit 22 includes a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, and an eighth capacitor C8. The first end of the fifth capacitor C5 is connected to the battery connection terminal a and the first end of the sixth capacitor C6, the second end of the fifth capacitor C5 is grounded, the first end of the sixth capacitor C6 is connected to the second input terminal, the second end of the sixth capacitor C6 is grounded, and the fifth capacitor C5 and the sixth capacitor C6 are used for filtering the electric signal acquired by the second charging unit 21. The first end of the seventh capacitor C7 is connected to the second output end and the first end of the eighth capacitor C8, the second end of the seventh capacitor C7 is grounded, the first end of the eighth capacitor C8 is connected to the load connection end B, the second end of the eighth capacitor C8 is grounded, and the seventh capacitor C7 and the eighth capacitor C8 are used for filtering the electric signal output by the second charging unit 21.
Specifically, the second filter unit 22 includes a first capacitor C1 and a second capacitor C2 disposed between the battery connection terminal a and the first charging unit 11, and further includes a third capacitor C3 and a fourth capacitor C4 disposed between the first charging unit 11 and the load connection terminal B. The electric signal input by the battery is input into the first charging unit 11 after being filtered by the voltages of the first capacitor C1 and the second capacitor C2, so that the working stability of the first charging unit 11 is improved, the electric signal output by the first charging unit 11 is output to the load connecting end B after being filtered by the voltages of the third capacitor C3 and the fourth capacitor C4, the stability of the output electric signal is improved, and the output fluctuation is reduced. This arrangement can further improve the stability of the charging process.
Optionally, with continued reference to fig. 3 on the basis of the foregoing embodiment, the first charging module 10 further includes a third filtering unit 13, a first end of the third filtering unit 13 is connected to the power supply and the power input end of the first charging unit 11, a second end of the third filtering unit 13 is grounded, and the third filtering unit 13 is configured to filter the voltage signal output by the power supply.
Specifically, the first charging module 10 may further provide a third filtering unit 13 between the first charging unit 11 and the power supply. The first end of the third filter unit 13 is connected to a power supply and a power supply input of the first charging unit 11, and the second end of the third filter unit 13 is grounded. The third filtering unit 13 is configured to filter the voltage signal output by the power supply, so as to further improve the stability of the first charging unit 11. The third filter unit 13 may be a capacitor, for example.
Alternatively, with continued reference to fig. 3, the first charging unit 11 is an SGM4151X charge-discharge chip on the basis of the above embodiment.
Specifically, the first charging unit 11 may be a device or a circuit having a charge and discharge function, such as an SGM4151X series charge and discharge chip.
Alternatively, with continued reference to fig. 3, the first diode D is a MAX4020X ideal diode, based on the above embodiments.
Specifically, the first diode D may be a diode with a smaller resistance, such as a MAX4020X series ideal diode.
Fig. 4 is a schematic circuit diagram of a wireless earphone charging circuit according to an embodiment of the present utility model. Referring to fig. 3 and 4, the first charging unit 11 employs an SGM4151X charging/discharging chip, the second charging unit 21 employs a MAX4020X ideal diode, the first filtering unit 12 includes a first capacitor C1, a second capacitor C2, a third capacitor C3 and a fourth capacitor C4, the second filtering unit 22 includes a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7 and an eighth capacitor C8, the third filtering unit 13 includes a ninth capacitor C9, and the devices are connected in a structure as shown in fig. 4.
When the wireless earphone is charged through the charging bin provided with the wireless earphone charging circuit, the wireless earphone is connected with the load circuit of the charging bin, and the battery outputs an electric signal. When the control module 30 sends a control signal to control the second charging module 20 to be turned on, the first control terminal E receives the control signal from the control module 30 and controls the first diode D to be turned on. Because the internal resistance of the first diode D is smaller, an electric signal is input into the wireless earphone charging circuit through the battery connection end A, is filtered by the fifth capacitor C5 and the sixth capacitor C6 and then is input into the first diode D, and the first diode D outputs the acquired electric signal, is filtered by the seventh capacitor C7 and the eighth capacitor C8 and then is output to the load circuit from the load connection end B, so that the wireless earphone is charged. When the control module 30 sends a control signal to control the second charging module 20 to be turned off, the first control terminal E receives the control signal from the control module 30 and controls the first diode D to be turned off. Because the first diode D is disconnected, the electric signal is input into the wireless earphone charging circuit through the battery connecting end A and is input into the first charging unit 11 after being filtered by the first capacitor C1 and the second capacitor C2, and the first charging unit 11 outputs the acquired electric signal and is output to the load circuit from the load connecting end B after being filtered by the third capacitor C3 and the fourth capacitor C4, so that the wireless earphone is charged. The power consumption lost in the charging process can be reduced by charging the load through the charging loop of the second charging module 20, and the endurance time of the charging bin is improved. The first charging module 10 and the second charging module 20 may also be standby for each other, switching to one charging circuit when the other charging circuit fails.
Optionally, fig. 5 is a schematic structural diagram of a charging bin according to an embodiment of the present utility model. On the basis of the foregoing embodiments, referring to fig. 5, the charging bin 200 provided in the embodiment of the present utility model includes the wireless earphone charging circuit 100 in any of the foregoing embodiments, and has the beneficial effects of the wireless earphone charging circuit 100 in any of the foregoing embodiments, which are not described herein again.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present utility model may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present utility model are achieved, and the present utility model is not limited herein.
The above embodiments do not limit the scope of the present utility model. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. A wireless headset charging circuit, comprising:
the first input end of the first charging module is connected with the battery connecting end, the first output end of the first charging module is connected with the load connecting end, the battery connecting end is used for connecting a battery, the load connecting end is used for connecting a load circuit, and the first charging module is used for outputting an electric signal of the battery to the load circuit;
the second input end of the second charging module is connected with the battery connecting end, the second output end of the second charging module is connected with the load connecting end, and the second charging module is used for outputting the electric signal of the battery to the load circuit;
the control module is connected with the second charging module and is used for sending a control signal to control the connection and disconnection of the second charging module;
wherein the internal resistance of the first charging module is greater than the internal resistance of the second charging module.
2. The charging circuit of claim 1, wherein the first charging module comprises:
the first input end of the first charging unit is connected with the battery connecting end, the first output end of the first charging unit is connected with the load connecting end, and the first charging unit is used for acquiring the electric signal and outputting the electric signal to the load circuit;
the first end of the first filtering unit is connected between the battery connecting end and the first input end, the second end of the first filtering unit is connected between the load connecting end and the first output end, and the first filtering unit is used for filtering the electric signals acquired and output by the first charging unit.
3. The charging circuit of claim 2, wherein the first filtering unit comprises:
a first capacitor, a second capacitor, a third capacitor, and a fourth capacitor;
the first end of the first capacitor is connected with the battery connection end and the first end of the second capacitor, the second end of the first capacitor is grounded, the first end of the second capacitor is connected with the first input end, the second end of the second capacitor is grounded, and the first capacitor and the second capacitor are used for filtering the electric signal acquired by the first charging unit;
the first end of the third capacitor is connected with the first output end and the first end of the fourth capacitor, the second end of the third capacitor is grounded, the first end of the fourth capacitor is connected with the load connection end, the second end of the fourth capacitor is grounded, and the third capacitor and the fourth capacitor are used for filtering the electric signals output by the first charging unit.
4. The charging circuit of claim 1, wherein the second charging module comprises:
the second input end of the second charging unit is connected with the battery connecting end, the second output end of the second charging unit is connected with the load connecting end, and the second charging unit is used for acquiring the electric signal and outputting the electric signal to the load circuit;
the first end of the second filtering unit is connected between the battery connecting end and the second input end, the second end of the second filtering unit is connected between the load connecting end and the second output end, and the second filtering unit is used for filtering the electric signals acquired and output by the second charging unit.
5. The charging circuit of claim 4, wherein the second charging unit comprises:
the first end of the first diode is connected with the second input end, the second end of the first diode is connected with the second output end, and the first diode is used for receiving the electric signal when being conducted and outputting the electric signal to the second output end;
the first control end is connected with the first diode and the control module and is used for controlling the on-off of the first diode according to the control signal.
6. The charging circuit of claim 4, wherein the second filtering unit comprises:
a fifth capacitor, a sixth capacitor, a seventh capacitor, and an eighth capacitor;
the first end of the fifth capacitor is connected with the battery connection end and the first end of the sixth capacitor, the second end of the fifth capacitor is grounded, the first end of the sixth capacitor is connected with the second input end, the second end of the sixth capacitor is grounded, and the fifth capacitor and the sixth capacitor are used for filtering the electric signal acquired by the second charging unit;
the first end of the seventh capacitor is connected with the second output end and the first end of the eighth capacitor, the second end of the seventh capacitor is grounded, the first end of the eighth capacitor is connected with the load connection end, the second end of the eighth capacitor is grounded, and the seventh capacitor and the eighth capacitor are used for filtering the electric signal output by the second charging unit.
7. The charging circuit of claim 2, wherein the first charging module further comprises:
the first end of the third filtering unit is connected with the power supply and the power supply input end of the first charging unit, the second end of the third filtering unit is grounded, and the third filtering unit is used for filtering a voltage signal output by the power supply.
8. The charging circuit of claim 2, wherein the first charging unit is an SGM4151X charge-discharge chip.
9. The charging circuit of claim 5, wherein the first diode is a MAX4020X ideal diode.
10. A charging cartridge comprising the wireless headset charging circuit of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322406750.6U CN220754394U (en) | 2023-09-05 | 2023-09-05 | Wireless earphone charging circuit and charging bin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322406750.6U CN220754394U (en) | 2023-09-05 | 2023-09-05 | Wireless earphone charging circuit and charging bin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220754394U true CN220754394U (en) | 2024-04-09 |
Family
ID=90564193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322406750.6U Active CN220754394U (en) | 2023-09-05 | 2023-09-05 | Wireless earphone charging circuit and charging bin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220754394U (en) |
-
2023
- 2023-09-05 CN CN202322406750.6U patent/CN220754394U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107465240B (en) | A kind of intelligent movable power supplies and the method for carrying out usb data communication with it | |
| CN107231012B (en) | A kind of method of quick charge, terminal, charger and system | |
| WO2019157844A1 (en) | Charging method and apparatus, system, charging circuit, terminal and charging system | |
| CN114498803B (en) | Charging and discharging circuit and electronic equipment | |
| CN106356918B (en) | A kind of quick charge recognition methods and terminal device | |
| CN101102119B (en) | A charging detection circuit of appliance device and charging detection method | |
| CN113009995B (en) | Power supply device and power supply method | |
| CN108695956A (en) | Wireless charging and telecommunication circuit and radio-based electronic devices | |
| CN106250295A (en) | Wearable device electric quantity monitoring method, system, wearable device and mobile terminal | |
| CN201590882U (en) | Bluetooth headset | |
| CN102231769A (en) | Method for turning on mobile phone with over-discharged cell and mobile phone | |
| CN220754394U (en) | Wireless earphone charging circuit and charging bin | |
| WO2001093402A2 (en) | Optimization of mobile station battery charging with a two slot charger by sharing a charging period | |
| CN105790346A (en) | Multi-power charger and multi-power charging method | |
| CN107690813B (en) | The power supply circuit of earphone and earphone | |
| CN210042140U (en) | Wireless earphone, wireless earphone charging box and wireless earphone charging system | |
| CN101630852A (en) | Mobile phone capable of selecting to be connected with computer for charge or data transmission | |
| CN210867228U (en) | Automatic charging and discharging detection circuit applied to high-battery-voltage sound box | |
| CN101599554B (en) | Battery backup unit and battery backup unit switch control method | |
| CN207926874U (en) | A kind of bluetooth headset | |
| CN212012161U (en) | One drags many quota to distribute and fills circuit and fill wire rod soon | |
| CN105280970B (en) | The charging method and mobile terminal of a kind of mobile terminal | |
| CN218603206U (en) | Multi-voltage output power-taking circuit | |
| CN209516719U (en) | Solar recharging Switching power | |
| CN2893951Y (en) | Charging and discharging single interface standby battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |