CN106998081B - Electronic device and charging and discharging management method thereof - Google Patents
Electronic device and charging and discharging management method thereof Download PDFInfo
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- CN106998081B CN106998081B CN201610041422.2A CN201610041422A CN106998081B CN 106998081 B CN106998081 B CN 106998081B CN 201610041422 A CN201610041422 A CN 201610041422A CN 106998081 B CN106998081 B CN 106998081B
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- electronic device
- battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses an electronic device and a charging and discharging management method thereof. The charging and discharging path switch unit is configured on the charging and discharging path of the battery and is coupled with the control unit and the voltage conversion unit, and the control unit and the voltage conversion unit are also coupled with the microprocessing unit. By utilizing the electronic device and the charge and discharge management method thereof, the charge and discharge path of the battery provided by the electronic device is closed according to the sleep mode control instruction, and the electronic device enters the sleep mode, so that the battery can not provide power for the electronic device through the charge and discharge path, and the phenomenon that the battery has too low voltage due to too long period to be sold and the service life is shortened is effectively avoided.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to an electronic device, and more particularly, to a charging and discharging management method for an electronic device.
[ background of the invention ]
With the progress of the times, most 3C products adopt batteries as the main power source of the 3C products for convenience of mobile use. Among all battery types, the most popular battery is a lithium battery and a lithium polymer battery, and the two batteries have the greatest advantage of free charge and discharge, so that the battery is widely applied to many 3C products. However, if the lithium battery and the lithium polymer battery are charged to cause too high voltage or discharged to cause too low voltage, the service life of the battery is easily shortened. However, no matter whether the lithium battery is used or not, the problem of shortening the service life of the battery still cannot be avoided after the lithium battery is kept still for 1-2 years. In view of this problem, early 3C products allowed users to replace batteries at will to ensure the extended use of 3C products, but in recent years many 3C products have chosen to pack batteries within 3C products for the safety of the users, and not to allow users to replace batteries at will. However, the 3C product is designed to be unable to be freely replaced by the user, and if the period of the 3C product to be sold after shipment is too long, the battery life will be shortened, which causes troubles to the sellers and consumers, so how to avoid the shortening of the battery life during shipment and during the period of sale is an important issue.
[ summary of the invention ]
The invention provides a mobile power supply charging system which can effectively prevent the service life of a battery from being shortened.
The electronic device of the invention comprises a battery, a charge-discharge path switch unit and a control unit. The charge and discharge path switch unit is configured on the charge and discharge path of the battery. The control unit is coupled to the charging and discharging path switch unit, controls the charging and discharging path switch unit to close the charging and discharging path of the battery according to the sleep mode control instruction, enters a sleep mode, judges whether an alternating current power supply coupled with the electronic device is coupled to the electronic device again in the sleep mode, and restarts the charging and discharging path of the battery if the alternating current power supply is provided to the electronic device again.
In an embodiment of the invention, the electronic device further includes a voltage conversion unit, coupled between the ac power source and the control unit, for converting the ac power source to provide a charging current to the battery via the charging/discharging path. The micro-processing unit is coupled with the voltage conversion unit and the control unit, receives the power supply voltage provided by the voltage conversion unit, outputs a sleep mode control instruction to the control unit, and outputs a starting signal to the control unit when the voltage conversion unit is coupled with the alternating current power supply again, so that the control unit controls the charging and discharging path switching unit to start a charging and discharging path of the battery.
In an embodiment of the invention, the battery is used for providing power required by the operation of the electronic device through a charging/discharging path of the battery, and the sleep mode control command is sent to the control unit when the electronic device leaves a factory.
In an embodiment of the invention, the control unit determines whether the power-on signal is received in the sleep mode to determine whether the ac power is coupled to the electronic device again.
In an embodiment of the invention, the charge/discharge path switch unit includes a charge switch, a discharge switch, a first rectifying unit and a second rectifying unit. The discharging switch and the charging switch are connected in series between the battery and the voltage conversion unit, when the charging and discharging path of the battery is opened, the control unit turns on the charging switch and turns off the discharging switch during the charging period, and turns off the charging switch and turns on the discharging switch during the discharging period. The first rectifying unit is coupled to two ends of the discharge switch, so that current flows to the battery in a unidirectional mode. The second rectifying unit is coupled to two ends of the charging switch, so that the current flows to the electronic device in a unidirectional mode.
In an embodiment of the invention, the charging switch and the discharging switch are P-type transistors, and the first rectifying unit and the second rectifying unit are rectifying diodes.
The invention discloses a charge and discharge management method of an electronic device, which is used for prolonging the service life of a battery and comprises the following steps. And receiving a sleep mode control instruction. And closing a charging and discharging path of a battery of the electronic device according to the sleep mode control instruction, and enabling the electronic device to enter a sleep mode. And judging whether the alternating current power supply originally coupled to the electronic device is coupled to the electronic device again in the sleep mode. If the AC power is provided to the electronic device again, the charging and discharging path of the battery is restarted.
In an embodiment of the invention, the battery is used for providing power required by the operation of the electronic device through a charging/discharging path of the battery, and the sleep mode control command is sent to the electronic device when the electronic device leaves a factory.
Based on the above, the embodiment of the invention closes the charging and discharging path of the battery provided by the electronic device according to the sleep mode control instruction, and enables the electronic device to enter the sleep mode, so as to ensure that the battery cannot provide power to the electronic device through the charging and discharging path, thereby effectively avoiding the service life of the battery from being shortened due to an overlong period of time for selling the battery.
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.
[ description of the drawings ]
Fig. 1 is a schematic diagram of an electronic device according to an embodiment of the invention.
Fig. 2 is a schematic diagram of an electronic device according to another embodiment of the invention.
Fig. 3 is a schematic view illustrating a charging/discharging management method of an electronic device according to an embodiment of the invention.
[ detailed description ] embodiments
Fig. 1 is a schematic view of an electronic device according to an embodiment of the invention, please refer to fig. 1. The electronic device 100 includes a battery management device 102, a battery 104, a voltage conversion unit 110, and a microprocessor unit 112, wherein the electronic device 100 may be, for example, an electronic product using a rechargeable battery, such as a mobile phone or a tablet computer, but not limited thereto. The battery management device 102 may manage charging and discharging of the battery 104, provide power provided by the battery 104 to various circuits in the electronic device 100, such as a memory circuit, a display circuit …, and the like, and provide power from an ac power source to the battery 104 for charging, and the battery 104 may be, for example, a lithium battery or a lithium polymer battery. Further, the battery management device 102 may include a charging and discharging path switch unit 106 and a control unit 108, wherein the charging and discharging path switch unit 106 is disposed on a charging and discharging path of the battery 104 and is coupled to the control unit 108 and the voltage conversion unit 110, and the control unit 108 and the voltage conversion unit 110 are further coupled to the microprocessor unit 112, wherein the charging and discharging path switch unit 106 and the control unit 108 may be implemented by a control chip, for example.
The control unit 108 may control the on state of the charge-discharge path switching unit 106 to turn on or off the charge-discharge path of the battery 104. Under normal use conditions of the electronic device 100, when the electronic device 100 is connected to an ac power source, the voltage conversion unit 110 can convert the ac power source into a charging current, charge the battery 104 through a charging/discharging path of the battery 104, convert the ac power source into power required by operations of various circuits in the electronic device 100, and provide the power to the various circuits in the electronic device 100, for example, the microprocessor 112 can receive a power voltage from the voltage conversion unit 110. When the electronic device 100 is not connected to the ac power source, the battery 104 provides power to the circuits in the electronic device 100 through the charging/discharging path and the voltage converting unit 110.
When the electronic device 100 is ready to be shipped, the electronic device 100 is connected to an ac power source, and the microprocessor 112 may first output a sleep mode control command S1 to the control unit 108, so that the control unit 108 controls the charge/discharge path switching unit 106 to close the charge/discharge path of the battery 104 according to the sleep mode control command S1, and enters a sleep mode. In this way, after the ac power source connected to the electronic device 100 is removed and enters the shipment stage, since the charging and discharging path of the battery 104 is closed, the power cannot be provided to the control unit 108 through the charging and discharging path, and the power cannot flow to other circuits in the electronic device 100 through the charging and discharging path, the voltage of the battery 104 is prevented from being too low due to discharging in the transportation and storage processes after leaving the factory, and the reduction of the battery life can be effectively avoided.
When a consumer connects an ac power source to the electronic device 100 for the first time, that is, when the voltage conversion unit 110 is coupled to the ac power source for the first time after leaving the factory, the voltage conversion unit 110 performs conversion of the ac power source and provides a power voltage to the microprocessor unit 112, the microprocessor unit 112 can start operation after receiving the power voltage and send an on signal EB1 to the control unit 108, and the control unit 108 can determine whether the electronic device 100 is connected to the ac power source again by whether receiving the on signal EB1 in the sleep mode. Further, the determination of whether the control unit 108 receives the enabling signal EB1 may be performed, for example, according to a change of the voltage level of a specific pin of the control unit 108 (e.g., whether an operating voltage (e.g., an operating voltage of 3.3V) is received) or according to whether the control unit 108 receives the clock signal …. When the control unit 108 receives the enabling signal EB1, the control unit 108 wakes up from the sleep mode to re-enable the charge/discharge path of the battery 104, so that the electronic device 100 returns to normal operation, and the control unit 108 controls the charge/discharge path switching unit 106 according to the charge/discharge state of the battery 104, so as to discharge or charge the battery 104.
Fig. 2 is a schematic view of an electronic device according to another embodiment of the invention, please refer to fig. 2. In detail, the above-mentioned embodiment of the charge/discharge path switch unit 106, for example, as shown in the charge/discharge path switch unit 106 of the electronic device 200 of the present embodiment, includes a charge switch 202, a discharge switch 204, a rectification unit 206 and a rectification unit 208, wherein the discharge switch 204 and the charge switch 202 are connected in series between the battery 104 and the voltage conversion unit 110, the rectification unit 206 is coupled to two ends of the charge switch 202, so that the current flows to the electronic device unidirectionally when the battery 104 is discharged, the rectification unit 208 is coupled to two ends of the discharge switch 204, so that the current flows to the battery unidirectionally when the battery 104 is charged, the charge switch 202 and the discharge switch 204 can be implemented by P-type transistors, for example, and the rectification unit 206 and the rectification unit 208 can be implemented by rectifying diodes, for example, but not limited. In this embodiment, when the electronic device 100 leaves the factory, the electronic device 100 enters the sleep mode and the charging/discharging path of the battery 104 is closed, and in fig. 2, the control unit 108 controls the charging switch 202 and the discharging switch 204 to be both open circuits, so that the battery 104 has no charging/discharging path at all.
Under the normal operation of the general electronic device 200, when the electronic device 200 is connected to the ac power source and the battery 104 is to be charged, the microprocessor 112 can inform the control unit 108 that the voltage conversion unit 110 is connected to the ac power source, and at this time, the control unit 108 can turn on the charging switch 202 and turn off the discharging switch 204, so that the charging current output by the voltage conversion unit 110 converting the ac power source can flow to the battery 104 through the rectifying unit 208 and the charging switch 202 to charge the battery 104. In addition, when the electronic device 200 is not connected to the ac power source and the power of the battery 104 needs to be used, the microprocessor 112 can also notify the control unit 108 that the voltage conversion unit 110 is not connected to the ac power source, and the control unit 108 can turn on the discharge switch 204 and turn off the charge switch 202 at this time, so that the battery 104 can provide the power to the circuit in the electronic device 200 through the rectification unit 206 and the discharge switch 204.
Fig. 3 is a schematic view illustrating a charging and discharging management method of an electronic device according to an embodiment of the invention, and fig. 3 is shown. In the above embodiments, the method for managing charging and discharging of an electronic device may include the following steps. First, when the electronic device leaves the factory, a sleep mode control command is sent to the electronic device to receive the sleep mode control command (step S302), so as to close a charging and discharging path of a battery of the electronic device according to the sleep mode control command and to enable the electronic device to enter a sleep mode (step S304). When the electronic device is normally used, the battery is used for providing power required by the operation of the electronic device through the charging and discharging path of the battery. In step S304, after the ac power source connected to the electronic device is removed and leaves the factory, since the charging/discharging path of the battery is closed and the battery is not discharged via the charging/discharging path, the battery can be prevented from discharging to cause an excessively low voltage, and the battery life can be effectively prevented from being shortened. In the sleep mode, it can be determined whether the ac power source originally coupled to the electronic apparatus is coupled to the electronic apparatus again (step S306). When the electronic device is used for the first time after being shipped from a factory and the ac power source is connected to the electronic device again, the charging and discharging path of the battery can be turned on again (step S308), so that the electronic device can be returned to a normal use state. On the contrary, if the ac power is not coupled to the electronic device again, the process continues to step S306, and it is determined whether the ac power originally coupled to the electronic device is coupled to the electronic device again.
In summary, the embodiment of the invention closes the charging and discharging path of the battery provided by the electronic device according to the sleep mode control instruction, and enables the electronic device to enter the sleep mode, so as to ensure that the battery cannot provide power to the electronic device through the charging and discharging path, thereby effectively avoiding the short service life of the battery due to the too long standby period of the battery resulting in the too low voltage of the battery.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. An electronic device, comprising:
a battery;
a charging and discharging path switch unit configured on the charging and discharging path of the battery;
a control unit, coupled to the charge and discharge path switch unit, receiving a sleep mode control command from outside of the control unit, controlling the charge and discharge path switch unit to close the charge and discharge path of the battery according to the sleep mode control command, entering a sleep mode, determining whether an ac power source coupled to the electronic device is coupled to the electronic device again in the sleep mode, and restarting the charge and discharge path of the battery if the ac power source is provided to the electronic device again;
a voltage conversion unit, coupled between the AC power source and the control unit, for converting the AC power source to provide a charging current to the battery via the charging/discharging path; and
and the micro-processing unit is coupled with the voltage conversion unit and the control unit, receives a power supply voltage provided by the voltage conversion unit, is used for outputting the sleep mode control instruction to the control unit, and outputs a starting signal to the control unit when the voltage conversion unit is coupled to the alternating current power supply again so that the control unit controls the charge and discharge path switch unit to start the charge and discharge path of the battery.
2. The electronic device of claim 1, wherein the battery is configured to provide power required for operation of the electronic device through a charging/discharging path of the battery, and the sleep mode control command is sent to the control unit when the electronic device leaves a factory.
3. The electronic device of claim 1, wherein the control unit determines whether the power-on signal is received in the sleep mode to determine whether the ac power source is coupled to the electronic device again.
4. The electronic device of claim 1, wherein the charge/discharge path switching unit comprises:
a charging switch;
a discharge switch connected in series with the charge switch between the battery and the voltage conversion unit, when the charge-discharge path of the battery is opened, the control unit turns on the charge switch and turns off the discharge switch during the charge period, and turns off the charge switch and turns on the discharge switch during the discharge period;
a first rectifying unit coupled to two ends of the discharge switch to make current flow to the battery in one direction; and
and the second rectifying unit is coupled to two ends of the charging switch, so that the current flows to the electronic device in a unidirectional mode.
5. The electronic device as claimed in claim 4, wherein the charging switch and the discharging switch are P-type transistors, and the first rectifying unit and the second rectifying unit are rectifying diodes.
6. A charge and discharge management method of an electronic device is used for prolonging the service life of a battery, the battery is used for providing electric power required by the operation of the electronic device through a charge and discharge path of the battery, a sleep mode control instruction is sent to the electronic device when the electronic device leaves a factory, the charge and discharge management method of the electronic device comprises the following steps:
receiving a sleep mode control command from the outside of a control unit;
closing a charging and discharging path of the battery of the electronic device according to the sleep mode control instruction, and enabling the electronic device to enter a sleep mode;
judging whether an alternating current power supply which is originally coupled to the electronic device is coupled to the electronic device again in the sleep mode; and
and if the alternating current power supply is provided to the electronic device again, the charging and discharging path of the battery is restarted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610041422.2A CN106998081B (en) | 2016-01-22 | 2016-01-22 | Electronic device and charging and discharging management method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610041422.2A CN106998081B (en) | 2016-01-22 | 2016-01-22 | Electronic device and charging and discharging management method thereof |
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| CN106998081A CN106998081A (en) | 2017-08-01 |
| CN106998081B true CN106998081B (en) | 2020-01-21 |
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| CN201610041422.2A Active CN106998081B (en) | 2016-01-22 | 2016-01-22 | Electronic device and charging and discharging management method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521151B (en) * | 2017-10-20 | 2020-12-08 | 威锋电子股份有限公司 | Starting device of battery management circuit and battery management system with same |
| US11031803B2 (en) | 2017-10-20 | 2021-06-08 | Via Labs, Inc. | Start-up apparatus for battery management circuit and battery management system having the same |
| CN110828923B (en) * | 2019-11-18 | 2022-03-01 | 北京小米移动软件有限公司 | Battery charging method, device and medium |
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| CN201726170U (en) * | 2010-07-13 | 2011-01-26 | 深圳市萨伏特电池电源有限公司 | Power supply with wakeup function |
| CN102104177A (en) * | 2009-12-17 | 2011-06-22 | 广达电脑股份有限公司 | Battery charging and discharging path management circuit and method |
| CN103872719A (en) * | 2012-12-18 | 2014-06-18 | 新普科技股份有限公司 | Method for reducing power consumption of static battery |
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2016
- 2016-01-22 CN CN201610041422.2A patent/CN106998081B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104177A (en) * | 2009-12-17 | 2011-06-22 | 广达电脑股份有限公司 | Battery charging and discharging path management circuit and method |
| CN102104177B (en) * | 2009-12-17 | 2013-12-18 | 广达电脑股份有限公司 | Battery charging and discharging path management circuit and method |
| CN201726170U (en) * | 2010-07-13 | 2011-01-26 | 深圳市萨伏特电池电源有限公司 | Power supply with wakeup function |
| CN103872719A (en) * | 2012-12-18 | 2014-06-18 | 新普科技股份有限公司 | Method for reducing power consumption of static battery |
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