CN216489841U - Charging and discharging circuit and electronic equipment - Google Patents
Charging and discharging circuit and electronic equipment Download PDFInfo
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- CN216489841U CN216489841U CN202123052853.4U CN202123052853U CN216489841U CN 216489841 U CN216489841 U CN 216489841U CN 202123052853 U CN202123052853 U CN 202123052853U CN 216489841 U CN216489841 U CN 216489841U
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Abstract
The disclosure relates to a charge and discharge circuit and an electronic device, wherein the charge and discharge circuit at least comprises a quick charge circuit, a common charge circuit and a battery module which are arranged in parallel, and the battery module comprises M batteries which are connected in series; m is greater than or equal to 2; the quick charging circuit is respectively electrically connected with the external charging device and the battery module, a first voltage reduction branch is arranged in the quick charging circuit and used for reducing the voltage of the battery module according to the battery voltage of the battery module and then transmitting the reduced voltage to the battery module; ordinary charging circuit is connected with external charging device and battery module electricity respectively, sets up integrated power management chip in the ordinary charging circuit. Set up in this disclosure and fill circuit and ordinary charging circuit soon, can switch the adjustment at any time according to the charged state, make to charge more intellectuality. The quick charging circuit can accelerate the charging speed, meets the charging requirement of a user on the electronic equipment, is provided with M batteries connected in series, increases the total capacity of the batteries, and effectively improves the cruising ability of the electronic equipment.
Description
Technical Field
The present disclosure relates to the field of electronic devices, and in particular, to a charging and discharging circuit and an electronic device.
Background
With the development of science and technology, electronic equipment has more and more abundant functions, such as consuming, entertainment, communication and the like, and meets the use requirements of users. However, with frequent use of electronic devices, power consumption of the electronic devices increases, and power consumption is too fast, which affects users' use.
SUMMERY OF THE UTILITY MODEL
To overcome the problems in the related art, the present disclosure provides a charge and discharge circuit and an electronic device.
According to a first aspect of the embodiments of the present disclosure, there is provided a charging and discharging circuit applied to an electronic device, the charging and discharging circuit at least includes a fast charging line, a common charging line and a battery module, which are arranged in parallel, the battery module includes M batteries connected in series; m is greater than or equal to 2;
the quick charging circuit is respectively electrically connected with an external charging device and the battery module, a first voltage reduction branch is arranged in the quick charging circuit, and the first voltage reduction branch is used for reducing the voltage of the battery module and then transmitting the reduced voltage to the battery module;
the common charging circuit is respectively electrically connected with the external charging device and the battery module, and an integrated power management chip is arranged in the common charging circuit.
Optionally, the first voltage-reducing branch is provided with a first charge pump, and the first charge pump is a voltage-reducing charge pump, wherein a voltage-reducing ratio of the first charge pump is associated with the number of batteries included in the battery module and a voltage input to an electric device of the electronic device.
Optionally, the input voltage value in the fast charging line is a first preset voltage, and the first charge pump adjusts the voltage according to the battery voltage to output the voltage required by the battery module to the battery module through the first charge pump.
Optionally, the first preset voltage is 30V, the voltage required by the battery module is 10V, M is 2, and the step-down ratio of the first charge pump is 6: 2.
optionally, the input voltage value in the common charging line is a second preset voltage, and after passing through the integrated power management chip, the integrated power management chip converts the second preset voltage into a voltage required by the battery module, and transmits the voltage to the battery module.
Optionally, the second preset voltage is 5V or 9V, and the conversion ratio of the integrated power management chip is 1: 2 or 1: 0.9.
optionally, the charging and discharging circuit further includes a second voltage-reducing branch, the second voltage-reducing branch is electrically connected to the battery module and the electrical device of the electronic device, and the second voltage-reducing branch is configured to reduce the voltage of the battery module and transmit the reduced voltage to the electrical device of the electronic device.
Optionally, the fast charging line and the common charging line are respectively electrically connected to the second voltage-reducing branch;
the second voltage reduction branch is used for reducing the voltage output by the fast charging line according to the voltage of an electrical appliance of the electronic equipment and then transmitting the reduced voltage to the electrical appliance of the electronic equipment, or,
and the second voltage reduction branch is used for reducing the voltage output by the common charging circuit and transmitting the reduced voltage to the electric equipment of the electronic equipment according to the voltage of the electric equipment of the electronic equipment.
Optionally, the second voltage-reducing branch is provided with a second charge pump, the second charge pump is a voltage-reducing charge pump, and the voltage-reducing ratio of the second charge pump is associated with the number of batteries included in the battery module and the voltage of the electric device of the electronic device.
According to a second aspect of embodiments of the present disclosure, there is provided an electronic apparatus including an electric device and the charge and discharge circuit as described above.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: set up two charging lines of circuit and ordinary charging circuit soon in this disclosure, can switch the adjustment at any time according to the state of charge, make to charge more intellectuality. The quick charging circuit can accelerate the charging speed, meets the charging requirement of a user on the electronic equipment, is provided with M batteries connected in series, increases the total capacity of the batteries, and effectively improves the cruising ability of the electronic equipment.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a block diagram illustrating a structure of a charge and discharge circuit according to an exemplary embodiment.
Fig. 2 is a schematic diagram of a charge and discharge circuit configuration shown in accordance with an exemplary embodiment.
FIG. 3 is a block diagram of an electronic device shown in accordance with an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
In the related art, many electronic manufacturers increase the battery capacity of the electronic device to improve the cruising ability of the electronic device, so as to meet the use requirements of users. Different battery solutions, which require different charging schemes to be configured. The battery scheme is mainly a single battery scheme.
However, with the continuous progress of technology, the above battery solutions lack market competitiveness and cannot meet the market demand. Electronic manufacturers hope to further improve the cruising ability and the charging speed of electronic equipment on the premise of ensuring the functions of the electronic equipment.
The disclosure provides a charging and discharging circuit of electronic equipment, which is applied to the electronic equipment. The charging and discharging circuit at least comprises a quick charging circuit, a common charging circuit and a battery module, which are arranged in parallel, wherein the battery module comprises M batteries which are connected in series; m is greater than or equal to 2; the quick charging circuit is respectively electrically connected with the external charging device and the battery module, a first voltage reduction branch is arranged in the quick charging circuit and used for reducing the voltage of the battery module according to the battery voltage of the battery module and then transmitting the reduced voltage to the battery module; the common charging circuit is respectively electrically connected with the external charging device and the battery module, and an integrated power management chip is arranged in the common charging circuit. Set up two charging lines of circuit and ordinary charging circuit soon in this disclosure, charging and discharging circuit can switch the adjustment charging circuit at any time according to the state of charge, makes to charge more intellectuality. The quick charging circuit can accelerate the charging speed, meets the charging requirement of a user on the electronic equipment, is provided with M batteries connected in series, increases the total capacity of the batteries, and effectively improves the cruising ability of the electronic equipment.
In an exemplary embodiment, as shown in fig. 1, a charging and discharging circuit 1 is applied to an electronic device, such as a mobile phone, a tablet computer, a wearable device, and the like. The charging and discharging circuit 1 is respectively electrically connected with the external charging device 2 and the electrical appliance 3 of the electronic equipment so as to realize charging and discharging of the electronic equipment.
The external charging device 2 is, for example, an adapter, and is used for being connected to a mains supply to supply power to the electronic device. The electrical device 3 of the electronic device may be, for example, a main board, a display portion, etc., the electrical device 3 is merely an exemplary illustration and is not a limitation to the present application, and the electrical device 3 may be any device in the electronic device that needs to be powered.
The charging and discharging circuit 1 includes a battery module 11, and the battery module 11 is used for storing electric energy so as to supply power to the electronic device. The battery module 11 includes M batteries connected in series, and the capacity of each battery may be, for example, 1000mAh to 2000mAh, which increases the total battery capacity of the electronic device, and further increases the cruising ability of the electronic device. Wherein M is greater than or equal to 2, for example: 2, 4, etc., the batteries may be lithium batteries to achieve the charging and discharging capability of the battery module 11.
In the present embodiment, as shown in fig. 1, the charge and discharge circuit 1 includes a quick charge line 12 and a normal charge line 13 arranged in parallel. The voltage value in the fast charging line 12 is greater than the voltage value in the ordinary charging line 13, so that the charging and discharging circuit 1 has different charging modes. The charging mode is, for example, a fast charging mode and a normal charging mode.
In one example, in a charging scenario for the battery module 11, the charging and discharging circuit 1 selects a proper charging mode for the battery module 11 according to a battery voltage of the battery module 11, so that a charging process becomes more intelligent, safety in the charging process is improved, and selection of an improper charging mode is avoided. For example, when the charging voltage is higher than the voltage required by the battery module 11, the overcharge phenomenon is easy to occur, the potential safety hazard is generated, even the explosion and the like are generated, and therefore, the ordinary charging mode can be selected; when the charging voltage is lower than the voltage required by the battery module 11, a low temperature phenomenon is easily generated, which affects the service life of the battery module 11, and thus, the rapid charging mode can be selected.
In another example, in a scenario where the battery module 11 is charged and the electronic device is used concurrently, the charging and discharging circuit 1 selects a suitable power supply mode for the electrical appliance 3 of the electronic device and the battery module 11 respectively according to the battery voltage of the battery module 11 and the voltage of the electrical appliance 3 of the electronic device, so as to reduce the consumption of the battery module 11 and further prolong the service life of the battery module 11.
In this embodiment, as shown in fig. 1, the fast charging line 12 is electrically connected to the external charging device 2 and the battery module 11, a first voltage-reducing branch 121 is disposed in the fast charging line 12, and the first voltage-reducing branch 121 is configured to reduce the voltage of the battery module 11 and transmit the reduced voltage to the battery module 11, so as to achieve a fast charging effect.
The first voltage-reducing branch 121 is provided with a first charge pump, and the first charge pump is a voltage-reducing charge pump. The step-down charge pump rapidly controls the charging and discharging of the capacitor by controlling the on or off of the switch, so that the input voltage is reduced by a certain factor, so as to obtain the voltage required by the battery module 11.
The voltage reduction proportion of the first charge pump is related to the number of batteries included in the battery module 11 and the voltage input to the electronic device 3, the voltage reduction proportion is preset, and the conversion efficiency of voltage reduction is regulated on a rear end line.
In this embodiment, as shown in fig. 1, the input voltage value in the fast charging line 12 is a first preset voltage, and the first charge pump is used to adjust the input voltage value according to the battery voltage to output the voltage required by the battery module 11 to the battery module 11, so that the battery module 11 completes the power storage.
Wherein, the first preset voltage is 30V, and the first charge pump passes through the first charge pump, and according to the battery voltage of the battery module 11, the battery voltage is 10V, and the battery M is 2, then the voltage reduction ratio of the first charge pump is 6: 2, outputting the voltage required by the battery module 11 to the battery module 11.
Adopt quick charge circuit 12 to charge for battery module 11, can realize the charging effect of big voltage, charge for battery module 11, effectively promoted battery module 11's the speed of charging.
In this embodiment, as shown in fig. 1, the common charging line 13 is electrically connected to the external charging device 2 and the battery module 11, and an integrated power management chip 131 is disposed in the common charging line 13, and the power management chip 131 is used for completing voltage conversion and transmission.
The input voltage value in the common charging line 13 is a second preset voltage, and after passing through the integrated power management chip 131, the integrated power management chip 131 converts the second preset voltage into a voltage required by the battery module 11, and transmits the voltage to the battery module 11.
The second preset voltage is, for example, 5V or 9V, and when the second preset voltage is 5V, the conversion ratio of the integrated power management chip is 1: 2, the voltage required by the battery module 11 is 10V. When the second preset voltage is 9V, the conversion ratio of the integrated power management chip is 1: 0.9, the voltage required by the battery module 11 is 10V.
When the second preset voltage is adopted to charge the battery module 11, the charging effect of small voltage is met, so that the charging speed of the battery module 11 is reduced, the safety in the charging process is improved, and the overcharge phenomenon is avoided.
In this embodiment, as shown in fig. 1, the integrated power management chip 131 includes a chopper circuit, which is a buck-boost circuit to implement conversion of an adjustable voltage or a fixed voltage.
In one example, when the second preset voltage is 9V, for example, the second preset voltage is similar to the battery voltage of the battery module 11, and the chopper circuit slightly adjusts the second preset voltage, so that the adjustable voltage conversion is realized to ensure that the proper voltage value is transmitted to the battery module 11.
In another example, when the second preset voltage is, for example, 5V, the second preset voltage is much lower than the battery voltage of the battery module 11, and is boosted by the chopper circuit to match the battery voltage of the battery module 11, and then is transmitted to the battery module 11.
When the electric quantity in the battery module 11 is lower than the preset value in the initial charging stage, the quick charging line 12 is opened to realize the quick charging mode, so that the battery module 11 is charged, the charging time is shortened, and the charging rate is increased.
When the electric quantity of the battery module 11 is higher than or equal to the preset value at the last stage of charging, the battery module 11 is close to a full-charge state, and is switched to the common charging circuit 13 to charge the battery module 11, so that the charging loss is reduced, the charging safety is improved, and the overcharge is avoided.
In this embodiment, as shown in fig. 1, the charging and discharging circuit 1 further includes a second voltage-reducing branch 14, the second voltage-reducing branch 14 is electrically connected to the battery module 11 and the electrical appliance 3 of the electronic device, respectively, and the second voltage-reducing branch 14 is configured to reduce the voltage of the battery module 11 and transmit the reduced voltage to the electrical appliance 3 of the electronic device.
When the battery module 11 supplies power to the electronic device in the non-charging state, the battery voltage of the battery module 11 cannot directly supply power to the electronic device, and is reduced to a proper voltage value through the second voltage reduction branch 14, so that the power is supplied to the electronic device, and the normal use of the electronic device is ensured.
In the present embodiment, as shown in fig. 1, the fast charging line 12 and the normal charging line 13 are electrically connected to the second step-down branch 14, respectively. The second voltage-reducing branch 14 is provided with a second charge pump, the second charge pump is a voltage-reducing charge pump, and the voltage-reducing proportion of the second charge pump is related to the number of batteries included in the battery module 11 and the voltage of the electronic device 3.
In one example, the second voltage-reducing branch 14 is configured to reduce the voltage output by the fast charging line 12 according to the voltage of the electrical equipment 3 of the electronic device, and then transmit the reduced voltage to the electrical equipment 3 of the electronic device.
Under the charged state, when adopting fast charge circuit 12 to charge for battery module 11, the voltage of fast charge circuit 12 output, after stepping down through first step-down branch 121, partial voltage directly transmits for battery module 11, partial voltage transmits for the second charge pump in addition, the step-down proportion of second charge pump adjusts the step-down back according to the voltage of the consumer 3 of electronic equipment, transmit to electronic equipment with electrical appliance 3, supply power for electronic equipment, guarantee electronic equipment's normal use.
In another example, the second voltage-reducing branch 14 is configured to reduce the voltage output by the common charging line 13 according to the voltage of the electrical device 3 of the electronic device, and then transmit the reduced voltage to the electrical device 3 of the electronic device.
Under the charged state, when adopting ordinary charging circuit 13 to charge for battery module 11, the voltage of ordinary charging circuit 13 output, through integrated power management chip conversion back, battery module 11 is directly given in partial voltage transmission, partial voltage transmission gives the second charge pump in addition, the step-down proportion of second charge pump adjusts the step-down back according to the voltage of the consumer 3 of electronic equipment, transmit to electronic equipment with electrical apparatus 3, supply power for electronic equipment, in order to guarantee that electronic equipment can normal use.
The present disclosure also proposes an electronic device including an electric device and the charging and discharging circuit as in the above embodiment. The charging and discharging circuit is applied to the electronic equipment, so that the market competitiveness of the electronic equipment is improved.
The charging and discharging circuit is provided with double charging circuits, and switching between a common charging circuit and a quick charging circuit is realized according to the charging state, so that intelligent charging is realized, and the requirement of a user on charging is met.
The boost charging rate of the fast charging line is based on that the step-down ratio of the first charge pump in the fast charging line is related to the number of batteries of the battery module, the number of batteries may be 2 (refer to fig. 2), and the step-down ratio of the first charge pump is 6: 2, the maximum voltage reduction working mode of the first charge pump is realized, the charging speed is higher, the power during charging can reach more than 180W, and the charging requirement of a user on the electronic equipment is met. The common charging circuit reduces the charging rate, avoids the phenomenon of overcharge, and improves the safety during charging.
Set up the battery of M series connection in two charging lines, increased battery module's total electric quantity, promoted electronic equipment's duration, satisfy user's user demand.
Fig. 3 is a block diagram of an electronic device. The present disclosure also provides an electronic device, a memory for storing executable instructions of a processor, the processor being configured to perform the charging described above.
The processing component 202 generally controls overall operation of the electronic device 200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 202 may include one or more processors 220 to execute instructions to perform all or a portion of the charging steps described above. Further, the processing component 202 can include one or more modules that facilitate interaction between the processing component 202 and other components. For example, the processing component 202 can include a multimedia module to facilitate interaction between the multimedia component 208 and the processing component 202.
The memory 204 is configured to store various types of data to support operations at the electronic device 200. Examples of such data include instructions for any application or method operating on the electronic device 200, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 204 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power component 206 provides power to the various components of the electronic device 200. Power components 206 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 200.
The multimedia component 208 includes a screen that provides an output interface between the electronic device 200 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 208 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the electronic device 200 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 210 is configured to output and/or input audio signals. For example, the audio component 210 includes a Microphone (MIC) configured to receive external audio signals when the electronic device 200 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 204 or transmitted via the communication component 216. In some embodiments, audio component 210 also includes a speaker for outputting audio signals.
The I/O interface 212 provides an interface between the processing component 202 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor component 214 includes one or more sensors for providing various aspects of status assessment for the electronic device 200. For example, the sensor component 214 may detect an open/closed state of the electronic device 200, the relative positioning of components, such as a display and keypad of the electronic device 200, the sensor component 214 may also detect a change in the position of the electronic device 200 or a component of the electronic device 200, the presence or absence of user contact with the electronic device 200, orientation or acceleration/deceleration of the electronic device 200, and a change in the temperature of the device 200. The sensor assembly 214 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 214 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 214 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 216 is configured to facilitate wired or wireless communication between the electronic device 200 and other devices. The electronic device 200 may access a wireless network based on a communication standard, such as WiFi, 2G or 5G, or a combination thereof. In an exemplary embodiment, the communication component 216 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 216 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the electronic device 200 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described charging.
A non-transitory computer readable storage medium, such as the memory 204, including instructions executable by the processor 220 of the electronic device 200 to accomplish the charging as provided in one exemplary embodiment of the present disclosure. For example, the computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like. The instructions in the storage medium, when executed by a processor of the electronic device, enable the electronic device to perform the charging described above.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (10)
1. A charge and discharge circuit is applied to electronic equipment and is characterized by at least comprising a quick charge circuit, a common charge circuit and a battery module, wherein the quick charge circuit and the common charge circuit are arranged in parallel; m is greater than or equal to 2;
the quick charging circuit is respectively electrically connected with an external charging device and the battery module, a first voltage reduction branch is arranged in the quick charging circuit and used for reducing the voltage of the battery module according to the battery voltage of the battery module and then transmitting the reduced voltage to the battery module;
the common charging circuit is respectively connected with the external charging device and the battery module, and an integrated power management chip is arranged in the common charging circuit.
2. The charging and discharging circuit according to claim 1, wherein the first voltage-reducing branch is provided with a first charge pump, the first charge pump is a voltage-reducing charge pump, and the voltage-reducing ratio of the first charge pump is related to the number of batteries included in the battery module and the voltage input to the electric device of the electronic device.
3. The charging and discharging circuit of claim 2, wherein the input voltage value in the fast charging line is a first preset voltage, and the first charge pump is adjusted according to the battery voltage to output the voltage required by the battery module to the battery module through the first charge pump.
4. The charging and discharging circuit according to claim 3, wherein the first preset voltage is 30V, the voltage required by the battery module is 10V, M is 2, and the voltage reduction ratio of the first charge pump is 6: 2.
5. the charging and discharging circuit of claim 1, wherein the input voltage value in the common charging circuit is a second preset voltage, and the integrated power management chip converts the second preset voltage into a voltage required by the battery module and transmits the voltage to the battery module after passing through the integrated power management chip.
6. The charging and discharging circuit of claim 5, wherein the second predetermined voltage is 5V or 9V, and the conversion ratio of the integrated power management chip is 1: 2 or 1: 0.9.
7. the charging and discharging circuit according to claim 1, further comprising a second voltage-reducing branch, wherein the second voltage-reducing branch is electrically connected to the battery module and the electrical device of the electronic device, and the second voltage-reducing branch is configured to reduce the voltage of the battery module and transmit the reduced voltage to the electrical device of the electronic device.
8. The charging and discharging circuit according to claim 7, wherein the fast charging line and the normal charging line are electrically connected to the second voltage-reducing branch respectively;
the second voltage reduction branch is used for reducing the voltage output by the fast charging line according to the voltage of an electric device of the electronic equipment and then transmitting the voltage to the electric device of the electronic equipment, or,
and the second voltage reduction branch is used for reducing the voltage output by the common charging circuit according to the voltage of the electric device of the electronic equipment and transmitting the reduced voltage to the electric device of the electronic equipment.
9. The charging and discharging circuit according to claim 8, wherein the second voltage-reducing branch is provided with a second charge pump, the second charge pump is a voltage-reducing charge pump, and the voltage-reducing ratio of the second charge pump is related to the number of batteries included in the battery module and the voltage of the electric device of the electronic device.
10. An electronic device, characterized in that the electronic device comprises an electric device and a charging and discharging circuit according to any one of claims 1 to 9.
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| CN202123052853.4U CN216489841U (en) | 2021-12-07 | 2021-12-07 | Charging and discharging circuit and electronic equipment |
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| CN202123052853.4U CN216489841U (en) | 2021-12-07 | 2021-12-07 | Charging and discharging circuit and electronic equipment |
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