CN214755687U - Charge and discharge management circuit and portable power source - Google Patents
Charge and discharge management circuit and portable power source Download PDFInfo
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- CN214755687U CN214755687U CN202121238790.9U CN202121238790U CN214755687U CN 214755687 U CN214755687 U CN 214755687U CN 202121238790 U CN202121238790 U CN 202121238790U CN 214755687 U CN214755687 U CN 214755687U
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Abstract
The embodiment of the application discloses charge-discharge management circuit and portable power source, can reduce power adapter's use, reduce a plurality of charging device to power source's dependence simultaneously, when utilizing a power source to charge for portable power source, can also charge for other equipment through portable power source's wireless charging function, and, because this technical scheme charges for portable power source's wireless charging circuit preferentially, guarantee that portable power source can charge for other equipment fast, and is further, the difference of the wireless charging power of the maximum output power value of power adapter output and wireless charging circuit is as the charging power of battery, can guarantee to charge to the battery with faster speed.
Description
Technical Field
The application relates to the technical field of battery charging and discharging, in particular to a charging and discharging management circuit and a mobile power supply.
Background
With the rapid development of the wireless charging industry, more and more mobile power supplies with the wireless charging function are provided, but when the existing mobile power supply with the wireless charging function utilizes a matched power adapter to connect a power supply interface to charge the mobile power supply, other electric devices (such as a mobile phone, a tablet, a notebook computer and the like) cannot be charged, so that when the mobile power supply utilizes the matched power adapter to charge the mobile power supply, if the other electric devices need to be charged, the mobile power supply needs to utilize the power adapter matched with the other electric devices to connect another power supply interface to charge the other electric devices. In this case, not only a plurality of power supply interfaces are occupied, but also a plurality of power adapters are required, thereby reducing user experience.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present application provides a charge and discharge management circuit and a mobile power supply.
The application provides a charge and discharge management circuit, which comprises a power supply management module, a power supply access module, a first current acquisition module, a first switch module, a second current acquisition module and a second switch module;
the power supply management module is respectively connected with the first current acquisition module and the second current acquisition module;
the power supply management module is respectively connected with a connection detection end of the power supply access module, an input end and a collection end of the first current collection module, a signal receiving end of the first switch module, a collection end of the second current collection module and a signal receiving end of the second switch module;
the current output end of the power supply access module is connected with the current input end of the first switch module, the current output end of the first switch module is connected with the current input end of the second current acquisition module, the current output end of the second current acquisition module is connected with the current input end of the second switch module, and the current output end of the second switch module is used for being connected with a wireless charging circuit;
the current output end of the first current acquisition module is used for being connected with the anode of the battery;
the current input end of the power access module is used for connecting a power adapter, and the power adapter is used for connecting a power supply;
and under the condition that the power supply management module receives a power supply connection signal sent by a connection detection end of the power supply access module, the power supply management module enables the first switch module and the second switch module to be connected.
The first current acquisition module of the charge and discharge management circuit comprises a first resistor, a first capacitor and a second capacitor;
one end of the first resistor is connected with one end of the first capacitor, one end of the second capacitor, a first voltage acquisition pin of the power management module and the anode of the battery;
the other end of the first resistor is connected with the other end of the first capacitor, the other end of the second capacitor and a second voltage acquisition pin of the power management module.
The application charge-discharge management circuit, second electric current collection module includes the second resistance, the one end of second resistance is connected the current output end of first switch module the third voltage acquisition pin of power management module with the voltage output pin of power management module, the other end of second resistance is connected the fourth voltage acquisition pin of power management module with the current input end of second switch module.
The charging and discharging management circuit is characterized in that the power management module receives the power switch-on signal, the power management module obtains the maximum output power value of the power adapter, the power management module determines the charging power of the wireless charging circuit through the second current collection module, and the difference between the maximum output power value and the charging power of the wireless charging circuit is used as the charging power of the battery.
The application charge-discharge management circuit under the condition that power management module does not receive the power switch-on signal that the switch-on detection end of power access module sent, power management module makes first switch module break off with second switch module switches on.
The application charge and discharge management circuit, first switch module and/or second switch module includes the switch tube.
The application charge-discharge management circuit, power access module includes TYPE-C interface, Micro-A and one kind in the Micro-B.
The charge and discharge management circuit further comprises a key module, the power management module is connected with the key module, and the key module is used for a user to control the power management module to enable the second switch module to be switched on or switched off.
The application provides a portable power source, including battery, wireless charging circuit and this application charge-discharge management circuit.
The power management module of the technical scheme can automatically identify the access of the power supply, when the power supply is accessed through the power adapter, the power management module controls the first switch module and the second switch module to be switched on, so that the charging and discharging management circuit can simultaneously charge the battery and the wireless charging circuit quickly with the current output by the power adapter.
Drawings
In order to more clearly explain the technical solutions of the present application, the drawings needed to be used in the embodiments are briefly introduced below, and it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope of protection of the present application. Like components are numbered similarly in the various figures.
Fig. 1 is a block diagram illustrating a charge and discharge management circuit according to an embodiment of the present disclosure;
fig. 2 is a block diagram illustrating another charge and discharge management circuit according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram illustrating a charge and discharge management circuit according to an embodiment of the present application;
fig. 4 is a schematic block diagram illustrating a charge and discharge management circuit according to another embodiment of the present disclosure;
fig. 5 shows a block diagram of a mobile power supply according to an embodiment of the present application.
Main element symbols:
100-charge and discharge management circuit; 110-a power management module; 120-a power access module; 130-a first current collection module; 140-a first switch module; 150-a second current collection module; 160-a second switch module; 170-key module; 200-a battery; 300-a wireless charging circuit; 10-a mobile power supply; r1 — first resistance; c1 — first capacitance; c2 — second capacitance; c3 — third capacitance; c4-fourth capacitance; c5 — fifth capacitance; c6 — sixth capacitance; l1-inductance; r2-second resistance.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
Hereinafter, the terms "including", "having", and their derivatives, which may be used in various embodiments of the present application, are intended to indicate only specific features, numbers, steps, operations, elements, components, or combinations of the foregoing, and should not be construed as first excluding the existence of, or adding to, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the present application belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments.
Example 1
In an embodiment of the present application, as shown in fig. 1, a charging and discharging management circuit 100 includes a power management module 110, a power access module 120, a first current collection module 130, a first switch module 140, a second current collection module 150, and a second switch module 160.
The power management module 110 is respectively connected to the first current collection module 130 and the second current collection module 150.
The power management module 110 is respectively connected to the connection detection terminal of the power access module 120, the signal receiving terminal B of the first switch module 140, and the signal receiving terminal of the second switch module 160.
The current output end of the power access module 120 is connected to the current input end a of the first switch module 140, the current output end C of the first switch module 140 is connected to the current input end of the second current collection module 150, the current output end of the second current collection module 150 is connected to the current input end of the second switch module 160, and the current output end of the second switch module 160 is used for connecting the wireless charging circuit 300. The wireless charging circuit 300 is used for wirelessly charging other electric devices.
The current output end of the first current collecting module 130 is used for connecting the positive pole of the battery 200.
The current input end of the power access module 120 is used for connecting a power adapter, and the power adapter is used for connecting a power supply.
Wherein the first switch module 140 and/or the second switch module 160 comprise a switch tube. The power access module 120 includes a TYPE-C interface, one of a Micro-A and a Micro-B.
When the power management module 110 receives the power-on signal sent by the power-on detection terminal of the power access module 120:
the power management module 110 controls the first switch module 140 and the second switch module 160 to be turned on.
Further, as shown in fig. 2, the first current collecting module 130 of the charge and discharge management circuit 100 includes a first resistor R1, a first capacitor C1, and a second capacitor C2.
One end of the first resistor R1 is connected to one end of the first capacitor C1, one end of the second capacitor C2, one end of the third capacitor C3, the first voltage collecting pin of the power management module 110, and the anode of the battery 200; the other end of the first resistor R1 is connected to the other end of the second capacitor C2, the other end of the first capacitor C1, one end of the fourth capacitor C4, one end of the fifth capacitor C5, one end of the inductor L1, and the second voltage collecting pin of the power management module 110; the other end of the third capacitor C3, the other end of the fourth capacitor C4 and the other end of the fifth capacitor C5 are grounded; the other end of the inductor L1 is connected to one end of the sixth capacitor C6 and the switch control pin of the power management module 110, and the other end of the sixth capacitor C6 is connected to the bootstrap pin of the power management module 110.
It can be understood that the first capacitor C1 and the second capacitor C2 are used for filtering, so that the acquired voltage across the first resistor R1 is more accurate, and the acquisition error is reduced. The third capacitor C3, the fourth capacitor C4 and the fifth capacitor C5 are used for filtering and removing interference waves flowing to the battery, so that the battery obtains high-quality charging current. The inductor L1 is used for boosting voltage, so that the power management module 110 can perform boost charging or buck charging on the battery through the inductor L1. The sixth capacitor C6 is a bootstrap capacitor for boosting and dropping voltage.
The second current collecting module 150 of the charge and discharge management circuit 100 includes a second resistor R2, one end of the second resistor R2 is connected to the current output terminal of the first switch module 140, the third voltage collecting pin of the power management module 110 and the voltage output pin of the power management module 110, and the other end of the second resistor R2 is connected to the fourth voltage collecting pin of the power management module 110 and the current input terminal of the second switch module 160.
Further, the power management module 110 may obtain the maximum output power value of the power adapter through the received power-on signal.
Further, the power management module 110 receives the voltage value across the second resistor R2 collected by the second current collection module 150, and may determine the wireless charging power of the wireless charging circuit 300 according to the voltage value across the second resistor R2 and the resistance value of the second resistor R2 of the second current collection module 150, and the power management module 110 may use the power remaining after subtracting the wireless charging power of the wireless charging circuit 300 from the maximum output power value of the power adapter as the charging power of the battery 200. While ensuring that the wireless charging circuit 300 can utilize the power supply to charge other electric devices quickly, the power supply can also charge the battery 200 quickly.
Further, the power management module 110 may also receive the voltage value across the first resistor R1 collected by the first current collection module 130, and determine the charging power of the battery 200 according to the voltage value across the first resistor R1 and the resistance value of the first resistor R1. The power management module 110 monitors the charging power of the battery 200 in real time, adjusts the charging power of the battery 200 in real time, and prevents the sum of the charging power of the battery 200 and the wireless charging power of the wireless charging circuit 300 from exceeding the maximum output power of the power adapter.
When the power management module 110 does not receive the power-on signal sent by the power-on detection terminal of the power access module 120:
the power management module 110 controls the first switch module 140 to be turned off and the second switch module 160 to be turned on. At this time, the wireless charging circuit 300 can receive only the current of the battery 200, and the wireless charging circuit 300 is charged by the battery 200.
The power management module 110 of this embodiment can automatically identify whether the power supply is connected, and when the power supply is connected through the power adapter, the charging and discharging management circuit 100 can reasonably allocate the maximum output power value output by the power adapter to the battery 200 and the wireless charging circuit 300, so as to ensure that the power supply can simultaneously and rapidly charge the battery 200 and the wireless charging circuit 300; when the power supply is not accessed through the power adapter, the wireless charging circuit 300 is charged by the battery 200. The charging and discharging modes can be automatically managed without human intervention, and the improvement of user experience is facilitated.
Example 2
One embodiment of the present application, as shown in fig. 3, provides a charge and discharge management circuit 100. The power management module 110 can be N9201 (manufactured and sold by shenzhen, tuxin technology limited). The first switch module 140 and/or the second switch module 160 are switch tubes packaged in the form of SOT23-6, for example, Q1 and Q2 in fig. 3. The power access module 120 is a TYPE-C interface.
The No. 4 pin and the No. 6 pin of Q1 are connected with the No. 33 pin of N9201, the No. 1 pin of Q1 is used for connecting the A4 pin and the B9 pin of TYPE-C interface, the No. 4 pin and the No. 6 pin of Q2 are connected with the No. 32 pin of N9201, and the No. 1 pin of Q2 is used for connecting the wireless charging circuit 300.
One end of the first resistor R1, denoted BAT +, is used to connect the positive electrode of the battery 200, one end of the first capacitor C1, denoted BAT, is connected to pin No. 15 of the N9201, and the other end of the first capacitor C1, denoted BAT csp, is connected to pin No. 14 of the N9201.
The charge and discharge management circuit 100 further includes a plurality of light emitting diodes, for example, D5, D6, and D7 in fig. 3, for indicating the operation of the charge and discharge management circuit 100.
Example 3
In an embodiment of the present application, as shown in fig. 4, it is provided that the charging and discharging management circuit 100 further includes a key module 170, the power management module 110 is connected to the key module 170, and the key module 170 is configured to enable the second switch module 160 to be turned on or off by a user controlling the power management module 110 through the key module.
The power management module 110 receives an opening instruction or a closing instruction of the key module 170.
The start instruction is used to start the function of the power supply directly providing the charging voltage to the wireless charging circuit 300, and the stop instruction is used to stop the function of the power supply directly providing the charging voltage to the wireless charging circuit 300.
Example 4
One embodiment of the present application, as shown in fig. 5, provides a mobile power supply 10, which includes a battery 200, a wireless charging circuit 300, and a charging and discharging management circuit 100 described herein.
The technical scheme disclosed in this embodiment can reduce the use of the adapter, reduce the dependence of a plurality of charging devices on the power interface at the same time, when charging the mobile power supply 10 by using one power interface, can also charge other devices through the wireless charging function of the mobile power supply 10, and because the technical scheme preferentially charges the wireless charging circuit 300 of the mobile power supply 10, it is ensured that the mobile power supply 10 can rapidly charge other devices, further, the difference between the maximum output power value output by the power adapter and the wireless charging power of the wireless charging circuit 300 is used as the charging power of the battery 200, and it can be ensured that the battery 200 is charged at a faster speed.
In the several embodiments provided in the present application, each functional module or unit may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application.
Claims (9)
1. A charge and discharge management circuit is characterized by comprising a power supply management module, a power supply access module, a first current acquisition module, a first switch module, a second current acquisition module and a second switch module;
the power supply management module is respectively connected with the first current acquisition module and the second current acquisition module;
the power supply management module is respectively connected with a connection detection end of the power supply access module, a signal receiving end of the first switch module and a signal receiving end of the second switch module;
the current output end of the power supply access module is connected with the current input end of the first switch module, the current output end of the first switch module is connected with the current input end of the second current acquisition module, the current output end of the second current acquisition module is connected with the current input end of the second switch module, and the current output end of the second switch module is used for being connected with a wireless charging circuit;
the current output end of the first current acquisition module is used for being connected with the anode of the battery;
the current input end of the power access module is used for connecting a power adapter, and the power adapter is used for connecting a power supply;
and under the condition that the power supply management module receives a power supply connection signal sent by a connection detection end of the power supply access module, the power supply management module enables the first switch module and the second switch module to be connected.
2. The charge and discharge management circuit according to claim 1, wherein the first current collection module comprises a first resistor, a first capacitor and a second capacitor;
one end of the first resistor is connected with one end of the first capacitor, one end of the second capacitor, a first voltage acquisition pin of the power management module and the anode of the battery;
the other end of the first resistor is connected with the other end of the first capacitor, the other end of the second capacitor and a second voltage acquisition pin of the power management module.
3. The charging and discharging management circuit according to claim 1, wherein the second current collecting module comprises a second resistor, one end of the second resistor is connected to the current output terminal of the first switch module, the third voltage collecting pin of the power management module and the voltage output pin of the power management module, and the other end of the second resistor is connected to the fourth voltage collecting pin of the power management module and the current input terminal of the second switch module.
4. The charging and discharging management circuit according to claim 1, wherein when the power management module receives the power-on signal, the power management module obtains a maximum output power value of the power adapter, and the power management module determines the charging power of the wireless charging circuit through the second current collecting module, and takes a difference between the maximum output power value and the charging power of the wireless charging circuit as the charging power of the battery.
5. The charging and discharging management circuit according to claim 1, wherein the power management module turns off the first switch module and turns on the second switch module when the power management module does not receive a power on signal sent by an on detection terminal of the power access module.
6. The charge and discharge management circuit according to any one of claims 1 to 5, wherein the first switch module and/or the second switch module comprises a switch tube.
7. The charging and discharging management circuit according to any one of claims 1 to 5, wherein the power access module comprises one of a TYPE-C interface, Micro-A and Micro-B.
8. The charging and discharging management circuit according to claim 1, further comprising a key module, wherein the power management module is connected to the key module, and the key module is configured to enable a user to control the power management module to turn on or off the second switch module through the key module.
9. A mobile power supply comprising a battery, a wireless charging circuit, and the charge and discharge management circuit according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121238790.9U CN214755687U (en) | 2021-06-03 | 2021-06-03 | Charge and discharge management circuit and portable power source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121238790.9U CN214755687U (en) | 2021-06-03 | 2021-06-03 | Charge and discharge management circuit and portable power source |
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| CN214755687U true CN214755687U (en) | 2021-11-16 |
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| CN202121238790.9U Active CN214755687U (en) | 2021-06-03 | 2021-06-03 | Charge and discharge management circuit and portable power source |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116316943A (en) * | 2022-12-14 | 2023-06-23 | 珠海英集芯半导体有限公司 | Control method for realizing movable wireless charging and non-light load shutdown by time division multiplexing |
-
2021
- 2021-06-03 CN CN202121238790.9U patent/CN214755687U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116316943A (en) * | 2022-12-14 | 2023-06-23 | 珠海英集芯半导体有限公司 | Control method for realizing movable wireless charging and non-light load shutdown by time division multiplexing |
| CN116316943B (en) * | 2022-12-14 | 2023-11-14 | 珠海英集芯半导体有限公司 | Control method for realizing movable wireless charging and non-light load shutdown by time division multiplexing |
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