CN113315218A - Power supply switching system of electronic equipment - Google Patents
Power supply switching system of electronic equipment Download PDFInfo
- Publication number
- CN113315218A CN113315218A CN202010119223.5A CN202010119223A CN113315218A CN 113315218 A CN113315218 A CN 113315218A CN 202010119223 A CN202010119223 A CN 202010119223A CN 113315218 A CN113315218 A CN 113315218A
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- Prior art keywords
- power supply
- supply module
- switching system
- main power
- standby
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- 238000001514 detection method Methods 0.000 claims abstract description 52
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
-
- 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
- H02J7/36—Arrangements using end-cell switching
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Stand-By Power Supply Arrangements (AREA)
- Power Sources (AREA)
Abstract
The invention is suitable for the technical field of power supplies, and provides a power supply switching system of electronic equipment, which comprises: the main power supply module is used for providing a working power supply and is provided with a detection anchor; the standby power supply module is used for supplying power in a dormant or standby mode; the battery detection circuit is used for sending a level signal to the processor according to the connection state of the detection anchor; and the processor is used for controlling the working state of the main power supply module and/or the standby power supply module according to the electric signal. Therefore, the switching circuit is simple, the time for replacing the main power switch can be effectively saved, and the efficiency is improved.
Description
Technical Field
The invention relates to the technical field of power supplies, in particular to a power supply switching system of electronic equipment.
Background
Because of the requirements of foreign products, a main battery and a standby battery are required to be built in a mobile intelligent electronic product, but the switching between the two batteries during use is involved, the existing scheme is expensive and complicated, and the technology is invented by the inventor so as to save the cost and reduce the product complexity.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
Disclosure of Invention
In view of the above-mentioned drawbacks, an object of the present invention is to provide a power switching system for electronic devices, which has a simple circuit, and can effectively save the time for replacing a main power switch and improve the efficiency.
In order to achieve the above object, the present invention provides a power supply switching system of an electronic device, including:
the main power supply module is used for providing a working power supply and is provided with a detection anchor;
the standby power supply module is used for supplying power in a dormant or standby mode;
the battery detection circuit is used for sending a level signal to the processor according to the connection state of the detection anchor;
and the processor is used for controlling the working state of the main power supply module and/or the standby power supply module according to the electric signal.
According to the power supply switching system of the electronic device of the present invention, the connection state of the detection anchor is:
the detection ground feet are connected with the battery detection circuit; or
The detection ground pin is not connected with the battery detection circuit.
According to the power supply switching system of the electronic equipment, when the detection anchor is connected with the battery detection circuit, the processor controls the main power supply module to supply power.
According to the power supply switching system of the electronic equipment, when the detection anchor is not connected with the battery detection circuit, the processor controls the standby power supply module to supply power.
According to the power supply switching system of the electronic equipment, the main power supply module and the standby power supply module are connected in parallel.
According to the power supply switching system of the electronic equipment, the standby power supply module is connected with the electrode of the main power supply module at a fixed voltage, and the fixed voltage is lower than the power supply voltage of the main power supply module.
The invention is suitable for the technical field of power supplies, and provides a power supply switching system of electronic equipment, which comprises:
the main power supply module is used for providing a working power supply and is provided with a detection anchor; the standby power supply module is used for supplying power in a dormant or standby mode; the battery detection circuit is used for sending a level signal to the processor according to the connection state of the detection anchor; and the processor is used for controlling the working state of the main power supply module and/or the standby power supply module according to the electric signal. Therefore, the switching circuit is simple, the time for replacing the main power switch can be effectively saved, and the efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the system architecture of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the present invention provides a power supply switching system for an electronic device, including a main power supply module 10, a standby power supply module 20, a battery detection circuit 30 and a processor 40, wherein:
the main power supply module 10 is used for providing working power supply, and the main power supply module 10 is provided with a detection ground pin 11.
And the standby power supply module 20 is used for supplying power in a dormant or standby mode.
And the battery detection circuit 30 is used for sending a level signal to the processor according to the connection state of the detection ground pin.
And the processor 40 is used for controlling the working state of the main power supply module and/or the standby power supply module according to the electric signal.
Specifically, the connection state of the detection anchor 11 is as follows: the detection anchor 11 is connected or not connected to the battery detection circuit 30. When the detection anchor 11 is connected with the battery detection circuit 30, the processor 40 controls the main power supply module 10 to supply power; when the detection anchor 11 is not connected to the battery detection circuit 30, the processor 40 controls the standby power supply module 20 to supply power.
The main power supply module 10 of the invention is mainly used for supplying power when the mobile intelligent electronic product is normally used, and the standby power supply module 20 supplies power in a state that the main power supply module 10 is not electrified or does not exist. Therefore, the equipment needs to be switched to the standby power supply module 20 for power supply in real time at the moment that the main power supply module 10 is powered off or is switched off, so that the equipment cannot be powered off or powered down, the time for replacing the main power supply is effectively saved, and the efficiency is improved.
According to the invention, a GND (ground) pin (detection foot 11) which is used for detecting a battery independently is added to the main power supply module 10 and is connected with the main board-battery detection circuit 30, when the detection foot 11 of the main power supply module 10 is connected with the equipment main board battery detection circuit 30, the battery detection circuit 30 can provide a low level signal for the processor 40, the processor 40 receives the low level signal to indicate that the power supply of the main power supply module 10 is normal at the moment, and the machine enters a dormant state without sending an instruction. When the detection ground leg 11 is disconnected from the battery detection circuit 30, the detection circuit will provide a high level signal to the processor 40, the processor 40 receives the high level signal to indicate that the main power supply module 10 is not powered at this time, the processor 40 sends an instruction to enable the device to immediately enter a sleep state, and power supply will be automatically switched to the standby power supply module 20 for power supply.
Preferably, the main power supply module 10 and the standby power supply module 20 of the present invention are connected in parallel, and the standby power supply module 20 supplies a fixed voltage to the battery pin by a DC _ DC step-up or step-down and is connected in a state of being lower than the voltage of the main power supply module 10. Therefore, the main power supply module 10 of the present invention is used up and then is powered by the standby power supply module 20. The power consumption of the device is very low, about 3mA, when the device enters the sleep state, so that the standby power module 20 can enable the device to have a standby state for a relatively long time. Pressing the sleep wake-up key at this time is ineffective, and the scan sleep wake-up key machine will be on screen for normal use only when the main power supply module 10 is accessed.
In summary, the present invention is applicable to the technical field of power supplies, and provides a power supply switching system for an electronic device, including: the main power supply module is used for providing a working power supply and is provided with a detection anchor; the standby power supply module is used for supplying power in a dormant or standby mode; the battery detection circuit is used for sending a level signal to the processor according to the connection state of the detection anchor; and the processor is used for controlling the working state of the main power supply module and/or the standby power supply module according to the electric signal. Therefore, the switching circuit is simple, the time for replacing the main power switch can be effectively saved, and the efficiency is improved.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A power supply switching system of an electronic device, comprising:
the main power supply module is used for providing a working power supply and is provided with a detection anchor;
the standby power supply module is used for supplying power in a dormant or standby mode;
the battery detection circuit is used for sending a level signal to the processor according to the connection state of the detection anchor;
and the processor is used for controlling the working state of the main power supply module and/or the standby power supply module according to the electric signal.
2. The power supply switching system of the electronic device according to claim 1, wherein the connection state of the detection ground is:
the detection ground feet are connected with the battery detection circuit; or
The detection ground pin is not connected with the battery detection circuit.
3. The power supply switching system of the electronic device according to claim 2, wherein the processor controls the main power supply module to supply power when the detection pin is connected to the battery detection circuit.
4. A power supply switching system for an electronic device according to claim 2 or 3, wherein when the detection ground pin is not connected to the battery detection circuit, the processor controls the backup power supply module to supply power.
5. The power supply switching system of an electronic device according to claim 1, wherein the main power supply module is connected in parallel with the backup power supply module.
6. The power supply switching system of claim 5, wherein the backup power module is connected to the electrode of the main power module at a fixed voltage, and the fixed voltage is lower than the power supply voltage of the main power module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010119223.5A CN113315218A (en) | 2020-02-26 | 2020-02-26 | Power supply switching system of electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010119223.5A CN113315218A (en) | 2020-02-26 | 2020-02-26 | Power supply switching system of electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113315218A true CN113315218A (en) | 2021-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010119223.5A Pending CN113315218A (en) | 2020-02-26 | 2020-02-26 | Power supply switching system of electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113315218A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201758389U (en) * | 2010-08-23 | 2011-03-09 | 华为终端有限公司 | Mobile terminal power supply equipment and mobile terminal |
| CN107196406A (en) * | 2017-07-04 | 2017-09-22 | 东莞市巨星电池有限公司 | A kind of method for handover control of pair of accessory power supply |
-
2020
- 2020-02-26 CN CN202010119223.5A patent/CN113315218A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201758389U (en) * | 2010-08-23 | 2011-03-09 | 华为终端有限公司 | Mobile terminal power supply equipment and mobile terminal |
| CN107196406A (en) * | 2017-07-04 | 2017-09-22 | 东莞市巨星电池有限公司 | A kind of method for handover control of pair of accessory power supply |
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