CN109240476A - A kind of battery powered method, circuit and electronic equipment - Google Patents
A kind of battery powered method, circuit and electronic equipment Download PDFInfo
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- CN109240476A CN109240476A CN201811087932.9A CN201811087932A CN109240476A CN 109240476 A CN109240476 A CN 109240476A CN 201811087932 A CN201811087932 A CN 201811087932A CN 109240476 A CN109240476 A CN 109240476A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000005611 electricity Effects 0.000 claims description 14
- 239000003990 capacitor Substances 0.000 claims description 13
- 230000005669 field effect Effects 0.000 claims description 11
- 230000007423 decrease Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/263—Arrangements for using multiple switchable power supplies, e.g. battery and AC
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/28—Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
-
- 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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Dc-Dc Converters (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
This application provides a kind of battery powered method, circuit and electronic equipment, the circuit includes control module, the first power supply module, the second power supply module and battery module；First power supply module connect with control module signal and is electrically connected with battery module；Second power supply module connect with the control module signal and is electrically connected with the battery module；The control module, it is electrically connected with first power supply module and the second power supply module and battery module, for obtaining the output voltage of the battery module, judge whether the output voltage of the battery module meets preset condition, if so, exporting the voltage of the battery module outside control first power supply module；If it is not, then controlling second power supply module externally exports the default boost voltage.The circuit design of the application reduces the usage amount of component in existing design, and using the method for expensive batteries, greatly reduces the production cost of equipment.
Description
Technical field
This application involves computer power supply fields, and in particular to battery powered method and battery powered circuit, with
And electronic equipment.
Background technique
Hybrid power Lifting scheme (Hybrid Power Boost, HPB mode) charge controlling chip (charger) is one
The power supply control chip of kind laptop.When system needs higher power, HPB mode charger can make to take down notes
The adapter and battery of this computer are powered simultaneously.And be responsible for the battery device that connect or close with system be known as battery FET (or
BATFET).In a battery supply mode, HPB mode charger will open BATFET to laptop, and battery directly supplies electricity to
System.
When battery capacity is lower, output voltage will decline.Notebook while if cell voltage drops to certain value
The operation of high power consumption occurs for computer, will result directly in system voltage dramatic decrease, ultimately causes system closedown or other problems.
Summary of the invention
The application provides a kind of battery powered method and a kind of battery powered circuit and a kind of electronic equipment.
To solve the problems, such as to shut down in DC mode power supply because of battery capacity decline using HPB mode charger.
In order to solve the above-mentioned technical problem, the embodiment of the present application provides the following technical solution:
This application provides a kind of battery powered circuits, comprising: control module, the first power supply module, the second power supply mould
Block and battery module；
First power supply module connect with control module signal and is electrically connected with battery module, for according to the control
The Continuity signal of module externally exports the voltage of the battery module；
Second power supply module connect with the control module signal and is electrically connected with the battery module, is used for basis
The Continuity signal of the control module promotes the output voltage of the battery module received to default boost voltage, and right
The outer output default boost voltage；
The control module is electrically connected with first power supply module and the second power supply module and battery module, is used
In the output voltage for obtaining the battery module, judge whether the output voltage of the battery module meets preset condition, if so,
Then control the voltage that the battery module is exported outside first power supply module；If it is not, then controlling second power supply module pair
The outer output default boost voltage.
Preferably, second power supply module, comprising: first switch circuit, the first booster circuit, second switch circuit and
Second booster circuit；
First switch circuit, first end are connect with the control module signal, second end and the first booster circuit electricity
Connection, third end externally exports the default boost voltage, for according to the control module signal conduction or closing；
First booster circuit is electrically connected with the first switch circuit and battery module, in the first switch
Circuit completes first course of work when closing, and completes second course of work in first switch circuit conducting；
Second switch circuit, first end are connect with the control module signal, second end and the first booster circuit electricity
Connection, third end externally exports the default boost voltage, for according to the control module signal conduction or closing；
Second booster circuit is electrically connected with the second switch circuit and battery module, in the second switch
Circuit completes first course of work when closing, and completes second course of work in second switch circuit conducting；
Wherein, first course of work is that the output voltage of the battery module is boosted to default boost voltage
Process；Second course of work is the process for externally exporting the default boost voltage.
Further, when the output voltage of the battery module is unsatisfactory for preset condition, the control module is used for root
According to the time cycle of first course of work and second course of work, the first switch circuit and second switch circuit are controlled
Alternate conduction.
Preferably, the first switch circuit, including N-channel field-effect tube, grid and the control module signal connect
It connects, drain electrode is electrically connected with the first booster circuit, and source electrode externally exports the default boost voltage；
And/or
The second switch circuit, including N-channel field-effect tube, grid are connect with the control module signal, leakage
Pole is electrically connected with the second booster circuit, and source electrode externally exports the default boost voltage.
Preferably, first booster circuit includes at least inductance and capacitor；
And/or
Second booster circuit includes at least inductance and capacitor.
This application provides a kind of electronic equipment, the electronic equipment include equipment body and as described above it is battery powered
Circuit.
Further, the battery powered circuit is set in the shell of equipment body.
This application provides a kind of battery powered methods, comprising:
Obtain the output voltage of the battery module；
Judge whether the output voltage of the battery module meets preset condition；
If so, exporting the voltage of the battery module outside control first power supply module；
If it is not, then controlling second power supply module externally exports the default boost voltage.
Preferably, control second power supply module externally exports the default boost voltage, comprising:
The first switch circuit and second switch circuit alternate conduction of second power supply module are controlled, so that with described
It is exported outside associated first booster circuit of one switching circuit or the second booster circuit associated with the second switch circuit
The default boost voltage；
Wherein, first booster circuit, for completing first course of work when the first switch circuit is closed, with
And second course of work is completed in first switch circuit conducting；Second booster circuit, for being opened described second
First course of work is completed on powered-down road when closing, and completes second course of work in second switch circuit conducting；Institute
First course of work is stated, is the process that the output voltage of the battery module is boosted to default boost voltage；Second work
Make process, is the process for externally exporting the default boost voltage.
Further, the first switch circuit of control second power supply module and second switch circuit are alternately led
It is logical, comprising:
According to the time cycle of first course of work and second course of work, the first switch circuit and are controlled
Two switching circuit alternate conductions.
Disclosure based on the above embodiment can know, the embodiment of the present application have it is following the utility model has the advantages that
This application provides a kind of battery powered method, circuit and electronic equipment, the circuit includes control module, the
One power supply module, the second power supply module and battery module；
First power supply module connect with control module signal and is electrically connected with battery module, for according to the control
The Continuity signal of module externally exports the voltage of the battery module；
Second power supply module connect with the control module signal and is electrically connected with the battery module, is used for basis
The Continuity signal of the control module promotes the output voltage of the battery module received to default boost voltage, and right
The outer output default boost voltage；
The control module is electrically connected with first power supply module and the second power supply module and battery module, is used
In the output voltage for obtaining the battery module, judge whether the output voltage of the battery module meets preset condition, if so,
Then control the voltage that the battery module is exported outside first power supply module；If it is not, then controlling second power supply module pair
The outer output default boost voltage.
This application provides HPB mode controller control chips under direct current supply mode, redefines the charger
The power supply logics of chip direct current supply are controlled, the power supply logics are defined as VAB (Vmin Active Boost) mode.Work as electricity
When pond electricity drops to preset voltage value, BATFET is closed, starts VAB mode, by booster circuit by the output voltage of battery
To system power supply after boosting.The circuit design of the application reduces the usage amount of component in existing design, and using expensive
The method of battery greatly reduces the production cost of equipment.
Detailed description of the invention
Fig. 1 is a kind of battery powered circuit diagram provided by the embodiments of the present application；
Fig. 2 is a kind of second power supply module schematic diagram of battery powered circuit provided by the embodiments of the present application；
Fig. 3 is a kind of flow chart of battery powered method provided by the embodiments of the present application.
Specific embodiment
In the following, being described in detail in conjunction with specific embodiment of the attached drawing to the application, but not as the restriction of the application.
It should be understood that various modifications can be made to disclosed embodiments.Therefore, description above should not regard
To limit, and only as the example of embodiment.Those skilled in the art will expect in the scope and spirit of the present application
Other modifications.
The attached drawing being included in the description and forms part of the description shows embodiments herein, and with it is upper
What face provided is used to explain the application together to substantially description and the detailed description given below to embodiment of the application
Principle.
By the description of the preferred form with reference to the accompanying drawings to the embodiment for being given as non-limiting example, the application's
These and other characteristic will become apparent.
It is also understood that although the application is described referring to some specific examples, those skilled in the art
Member realizes many other equivalents of the application in which can determine, they have feature as claimed in claim and therefore all
In the protection scope defined by whereby.
When read in conjunction with the accompanying drawings, in view of following detailed description, above and other aspect, the feature and advantage of the application will become
It is more readily apparent.
The specific embodiment of the application is described hereinafter with reference to attached drawing；It will be appreciated, however, that the disclosed embodiments are only
Various ways implementation can be used in the example of the application.Known and/or duplicate function and structure and be not described in detail to avoid
Unnecessary or extra details makes the application smudgy.Therefore, specific structural and functionality disclosed herein is thin
Section is not intended to restrictions, but as just the basis of claim and representative basis be used to instructing those skilled in the art with
Substantially any appropriate detailed construction diversely uses the application.
This specification can be used phrase " in one embodiment ", " in another embodiment ", " in another embodiment
In " or " in other embodiments ", it can be referred to one or more of the identical or different embodiment according to the application.
The charger of HPB mode is a kind of power supply control chip of laptop.When system needs higher power supply function
When rate, HPB mode charger can make the adapter of laptop and battery while power.And it is responsible for battery and is connect with system
Or the device closed is known as BATFET.In a battery supply mode, HPB mode charger will open BATFET to laptop,
Battery directly supplies electricity to system.
When battery capacity is lower, output voltage will decline.Notebook while if cell voltage drops to certain value
The operation of high power consumption occurs for computer, will result directly in system voltage dramatic decrease, ultimately causes system closedown or other problems.
The core of the application is exactly HPB mode controller control chip under direct current supply mode, redefines described fill
The power supply logics of electrical equipment control chip direct current supply, the power supply logics are defined as VAB (Vmin Active Boost) mode.
When battery capacity drops to preset voltage value, BATFET is closed, starts VAB mode, by booster circuit by the output of battery
To system power supply after boost in voltage.
The application provides a kind of battery powered method, and the application provides a kind of battery powered circuit, and the application provides
A kind of electronic equipment.It is described in detail one by one in the following embodiments.
To first embodiment provided by the present application, i.e., a kind of embodiment of battery powered circuit.
The present embodiment is described in detail below with reference to Fig. 1 and Fig. 2, wherein Fig. 1 is provided by the embodiments of the present application one
The battery powered circuit diagram of kind；Fig. 2 is a kind of the second power supply mould of battery powered circuit provided by the embodiments of the present application
Block schematic diagram.
Present embodiments provide a kind of battery powered circuit, comprising: control module, the first power supply module, the second power supply
Module and battery module.
First power supply module connect with control module signal and is electrically connected with battery module, for according to the control
The Continuity signal of module externally exports the voltage of the battery module.For example, in the mode dc powered mould of HPB of laptop
Under formula, first power supply module is exactly and BATFET interlock circuit.
Second power supply module connect with the control module signal and is electrically connected with the battery module, is used for basis
The Continuity signal of the control module promotes the output voltage of the battery module received to default boost voltage, and right
The outer output default boost voltage.
Second power supply module setting purpose be exactly when battery capacity being avoided to be lower output voltage will decline, cause system to be closed
Machine.For example, being preset under the mode dc powered mode of HPB of laptop when the output voltage of the battery module meets
When condition, the control module opens BATFET, makes battery module and adapter supplying power for outside simultaneously, meanwhile, described second supplies
Electric module is in close state；The output voltage of battery module, which is depleted to, is unable to satisfy preset condition, for example preset condition is electricity
The output voltage of pond module is greater than 6V, and when the output voltage of battery module is lower than 6V, the control module is supplied to described first
Electric module (namely BATFET) issues cut-off signal, and issues Continuity signal to second power supply module；Described second supplies
The output voltage of the battery module received is boosted to default boost voltage, such as 10V by electric module, and then described second
Power supply module externally exports 10V voltage.
Further, second power supply module, comprising: first switch circuit, the first booster circuit, second switch circuit
With the second booster circuit.
First switch circuit, first end are connect with the control module signal, second end and the first booster circuit electricity
Connection, third end externally exports the default boost voltage, for according to the control module signal conduction or closing.Example
Such as, the first switch circuit, including N-channel field-effect tube, grid are connect with the control module signal, drain electrode and the
The electrical connection of one booster circuit, source electrode externally export the default boost voltage.
First booster circuit is electrically connected with the first switch circuit and battery module, in the first switch
Circuit completes first course of work when closing, and completes second course of work in first switch circuit conducting.
Wherein, first course of work is that the output voltage of the battery module is boosted to default boost voltage
Process；Second course of work is the process for externally exporting the default boost voltage.
For example, first booster circuit includes at least inductance and capacitor；When the first switch circuit is closed, the electricity
The output voltage of pond module flows through the inductance of first booster circuit, since output is direct current, so the electric current on inductance
Linearly increasing with certain ratio, this ratio is related with inductance size, as inductive current increases, stores in inductance
Energy；Due to the electric current retention performance of inductance, when the first switch circuit is connected, the electric current output of inductance starts to capacitor
Charging, capacitor both end voltage are increased to default boost voltage；Namely externally export the default boost voltage.
Second switch circuit, first end are connect with the control module signal, second end and the first booster circuit electricity
Connection, third end externally exports the default boost voltage, for according to the control module signal conduction or closing.Example
Such as, the second switch circuit, including N-channel field-effect tube, grid are connect with the control module signal, drain electrode and the
The electrical connection of two booster circuits, source electrode externally export the default boost voltage.The N-channel field of this second switch circuit
Effect pipe can both use simultaneously with the N-channel field-effect tube of first switch circuit, can also use respectively, that is, described
One switching circuit, including N-channel field-effect tube, and the second switch circuit, including P-channel field-effect transistor (PEFT) pipe；Or described
Two switching circuits, including N-channel field-effect tube, and the first switch circuit, including P-channel field-effect transistor (PEFT) pipe.In this this implementation
Example is with no restrictions.
Second booster circuit is electrically connected with the second switch circuit and battery module, in the second switch
Circuit completes first course of work when closing, and completes second course of work in second switch circuit conducting.For example,
Second booster circuit includes at least inductance and capacitor；When the second switch circuit is closed, the output of the battery module
Voltage flows through the inductance of second booster circuit, since output is direct current, so the electric current on inductance is with certain ratio
Linearly increasing, this ratio is related with inductance size, and some energy are stored as inductive current increases, in inductance；Due to electricity
The electric current retention performance of sense, when the second switch circuit is connected, the electric current output of inductance starts to capacitor charging, capacitor two
End voltage is increased to default boost voltage；Namely externally export the default boost voltage.
The control module is electrically connected with first power supply module and the second power supply module and battery module, is used
In the output voltage for obtaining the battery module, judge whether the output voltage of the battery module meets preset condition, if so,
Then control the voltage that the battery module is exported outside first power supply module；If it is not, then controlling second power supply module pair
The outer output default boost voltage.
When the output voltage of the battery module is unsatisfactory for preset condition, the control module, for according to described the
The time cycle of one course of work and second course of work controls the first switch circuit and second switch circuit is alternately led
It is logical.For example, the first booster circuit described above includes at least inductance and capacitor, the course of work is: first course of work, second
The periodic course of work that course of work, then first course of work, then second course of work etc. move in circles, wherein first
The course of work can not externally export default boost voltage；In second course of work, when the output voltage of capacitor is lower than preset value
When, for example default boost voltage is 10V, and preset value is 8.5V, when the output voltage of the capacitor is lower than 8.5V, described first
Booster circuit will enter first course of work；It, still can be with when in order to make first booster circuit enter first course of work
Default boost voltage is externally exported, the present embodiment devises the second booster circuit, it is therefore an objective to make the first booster circuit and second liter
Volt circuit alternately externally exports default boost voltage, guarantees that external output voltage is kept constant.
Corresponding with first embodiment provided by the present application, present invention also provides second embodiment, i.e., a kind of electronics is set
It is standby.Since second embodiment is substantially similar to first embodiment, so describing fairly simple, relevant part refers to first
The corresponding explanation of embodiment.Described below is only schematical.
The application provides a kind of electronic equipment, and the electronic equipment includes equipment body and battery as in the first embodiment
The circuit of power supply.
Further, the battery powered circuit is set in the shell of equipment body.
Corresponding with first embodiment provided by the present application, present invention also provides 3rd embodiment, i.e., a kind of battery supplies
The method of electricity.Since 3rd embodiment is substantially similar to first embodiment, so describing fairly simple, relevant part please join
See the corresponding explanation of first embodiment.Described below is only schematical.
The present embodiment is described in detail below with reference to Fig. 3, wherein Fig. 3 is a kind of electricity provided by the embodiments of the present application
The flow chart of battery-powered method.
A kind of battery powered method is present embodiments provided, specific steps include:
Step S101 obtains the output voltage of the battery module.
Step S102, judges whether the output voltage of the battery module meets preset condition.
Step S103, if so, exporting the voltage of the battery module outside control first power supply module.
Step S104, if it is not, then controlling second power supply module externally exports the default boost voltage.
Control second power supply module externally exports the default boost voltage, comprising:
The first switch circuit and second switch circuit alternate conduction of second power supply module are controlled, so that with described
It is exported outside associated first booster circuit of one switching circuit or the second booster circuit associated with the second switch circuit
The default boost voltage.
Wherein, first booster circuit, for completing first course of work when the first switch circuit is closed, with
And second course of work is completed in first switch circuit conducting；Second booster circuit, for being opened described second
First course of work is completed on powered-down road when closing, and completes second course of work in second switch circuit conducting；Institute
First course of work is stated, is the process that the output voltage of the battery module is boosted to default boost voltage；Second work
Make process, is the process for externally exporting the default boost voltage.
The first switch circuit and second switch circuit alternate conduction of control second power supply module, comprising:
According to the time cycle of first course of work and second course of work, the first switch circuit and are controlled
Two switching circuit alternate conductions.
Above embodiments are only the exemplary embodiment of the application, are not used in limitation the application, the protection scope of the application
It is defined by the claims.Those skilled in the art can make respectively the application in the essence and protection scope of the application
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as falling within the scope of protection of this application.
Claims (10)
1. a kind of battery powered circuit characterized by comprising control module, the first power supply module, the second power supply module and
Battery module；
First power supply module connect with control module signal and is electrically connected with battery module, for according to the control module
Continuity signal externally export the voltage of the battery module；
Second power supply module connect with the control module signal and is electrically connected with the battery module, for according to
The Continuity signal of control module promotes the output voltage of the battery module received to default boost voltage, and externally defeated
The default boost voltage out；
The control module is electrically connected, for obtaining with first power supply module and the second power supply module and battery module
The output voltage for taking the battery module, judges whether the output voltage of the battery module meets preset condition, if so, control
Make the voltage that the battery module is exported outside first power supply module；If it is not, it is externally defeated then to control second power supply module
The default boost voltage out.
2. circuit according to claim 1, which is characterized in that second power supply module, comprising: first switch circuit,
First booster circuit, second switch circuit and the second booster circuit；
First switch circuit, first end are connect with the control module signal, and second end is electrically connected with the first booster circuit,
Its third end externally exports the default boost voltage, for according to the control module signal conduction or closing；
First booster circuit is electrically connected with the first switch circuit and battery module, in the first switch circuit
First course of work is completed when closing, and completes second course of work in first switch circuit conducting；
Second switch circuit, first end are connect with the control module signal, and second end is electrically connected with the first booster circuit,
Its third end externally exports the default boost voltage, for according to the control module signal conduction or closing；
Second booster circuit is electrically connected with the second switch circuit and battery module, in the second switch circuit
First course of work is completed when closing, and completes second course of work in second switch circuit conducting；
Wherein, first course of work is the process that the output voltage of the battery module is boosted to default boost voltage；
Second course of work is the process for externally exporting the default boost voltage.
3. circuit according to claim 2, which is characterized in that when the output voltage of the battery module is unsatisfactory for default item
When part, the control module controls described for the time cycle according to first course of work and second course of work
One switching circuit and second switch circuit alternate conduction.
4. circuit according to claim 2, which is characterized in that the first switch circuit, including N-channel field-effect tube,
Its grid is connect with the control module signal, and drain electrode is electrically connected with the first booster circuit, and source electrode externally exports described pre-
If boost voltage；
And/or
The second switch circuit, including N-channel field-effect tube, grid are connect with the control module signal, drain electrode with
The electrical connection of second booster circuit, source electrode externally export the default boost voltage.
5. circuit according to claim 2, which is characterized in that first booster circuit includes at least inductance and capacitor；
And/or
Second booster circuit includes at least inductance and capacitor.
6. a kind of electronic equipment, which is characterized in that the electronic equipment includes that equipment body and such as claim 1 to 5 are any one
The item battery powered circuit.
7. electronic equipment according to claim 6, which is characterized in that the battery powered circuit is set to equipment body
In shell.
8. a kind of battery powered method characterized by comprising
Obtain the output voltage of the battery module；
Judge whether the output voltage of the battery module meets preset condition；
If so, exporting the voltage of the battery module outside control first power supply module；
If it is not, then controlling second power supply module externally exports the default boost voltage.
9. according to the method described in claim 8, it is characterized in that, described in the control second power supply module externally exports
Default boost voltage, comprising:
The first switch circuit and second switch circuit alternate conduction of second power supply module are controlled, so as to open with described first
Described in being exported outside powered-down associated first booster circuit in road or the second booster circuit associated with the second switch circuit
Default boost voltage；
Wherein, first booster circuit, for completing first course of work, Yi Ji when the first switch circuit is closed
The first switch circuit completes second course of work when being connected；Second booster circuit, in the second switch electricity
First course of work is completed on road when closing, and completes second course of work in second switch circuit conducting；Described
One course of work is the process that the output voltage of the battery module is boosted to default boost voltage；Described second is worked
Journey is the process for externally exporting the default boost voltage.
10. according to the method described in claim 9, it is characterized in that, the first switch of control second power supply module
Circuit and second switch circuit alternate conduction, comprising:
According to the time cycle of first course of work and second course of work, controls the first switch circuit and second and open
Powered-down road alternate conduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811087932.9A CN109240476B (en) | 2018-09-18 | 2018-09-18 | Battery power supply method, circuit and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811087932.9A CN109240476B (en) | 2018-09-18 | 2018-09-18 | Battery power supply method, circuit and electronic equipment |
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| CN109240476A true CN109240476A (en) | 2019-01-18 |
| CN109240476B CN109240476B (en) | 2024-04-19 |
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