CN106230052B - Applied to the control method of battery charger, device and electronic equipment - Google Patents
Applied to the control method of battery charger, device and electronic equipment Download PDFInfo
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- CN106230052B CN106230052B CN201610670907.8A CN201610670907A CN106230052B CN 106230052 B CN106230052 B CN 106230052B CN 201610670907 A CN201610670907 A CN 201610670907A CN 106230052 B CN106230052 B CN 106230052B
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- switch tube
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Classifications
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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
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
-
- 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
-
- 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 embodiment of the present application provides the control method applied to battery charger, device and electronic equipment, at the time of detecting that the voltage of adaptor spigot is more than or equal to the first predeterminated voltage in the embodiment of the present application, for a certain moment in the voltage uphill process of adaptor spigot, the first predeterminated voltage of adaptor spigot is smaller than burning voltage at this time, this when inscribe first switch tube and be in an off state, apply the second predeterminated voltage in the output end of first switch tube at this time, when the voltage of adaptor spigot tends towards stability voltage, when i.e. first switch tube is connected, the pressure difference of first switch tube output end and input terminal is the difference of burning voltage and the second predeterminated voltage, compared with the difference of burning voltage in the prior art and almost nil voltage, greatly reduce the voltage difference of first switch tube output end and input terminal, so that first switch tube is born Power within the scope of the tolerance of first switch tube, so as to avoid first switch tube damage the problem of.
Description
Technical field
This application involves field of communication technology, more particularly relate to a kind of control method applied to battery charger,
Device and electronic equipment.
Background technique
When the energy content of battery in electronic equipment is lower or exhausts, need to be connected by adapter with power supply, to reach
Power supply is the purpose of battery charging, when battery is connected to power supply by adapter in order to prevent, peak voltage and surge electricity occurs
Stream, generallys use back-to-back MOSFET connection adapter and battery.
As shown in Figure 1, for a kind of schematic diagram of battery charger in the prior art, as shown in figure 1 MOSFET11 with
MOSFET 12, as back-to-back MOSFET.The grid G 1 of MOSFET 11 is connected with the grid G 2 of MOSFET 12, MOSFET 11
Drain D 1 be connected with the socket ADIN_1 of adapter, the source S 1 of MOSFET11 is connected with the source S 2 of MOSFET 12,
The drain D 2 of MOSFET 12 is connected with battery.When charging the battery, MOSFET 11 and MOSFET 12 is needed to simultaneously turn on,
I.e. adapter passes sequentially through MOSFET 11 and MOSFET 12 by socket ADIN_1 by electric current Id as battery charging.
Applicant has found in studying above-mentioned charging process, when MOSFET 11 and MOSFET 12 is simultaneously turned on,
Pressure difference between 11 source S 1 of MOSFET and drain D 1 is very big, it is easy to more than the tolerance of MOSFET 11, cause
MOSFET 11 is burnt.
Summary of the invention
In view of this, the present invention provides a kind of applied to the control method of battery charger, device and electronic equipment,
To overcome in the prior art when MOSFET 11 and MOSFET 12 are simultaneously turned on, between 11 source S 1 of MOSFET and drain D 1
Pressure difference it is very big, the problem of being well over the tolerance of MOSFET 11, MOSFET 11 caused to burn.
To achieve the above object, the invention provides the following technical scheme:
A kind of control method applied to battery charger, the battery charger include first switch tube, second
Switching tube, adaptor spigot and battery, the input terminal of the first switch tube are connected with the adaptor spigot, and described first
The output end of switching tube is connected with the input terminal of the second switch, the output end of the second switch and the battery phase
Even, the control method applied to battery charger includes:
Whether the voltage for detecting the adaptor spigot is more than or equal to the first predeterminated voltage, and first predeterminated voltage is less than
For the burning voltage of adaptor spigot described in the battery charging process；
When the voltage of the adaptor spigot is more than or equal to first predeterminated voltage, it is determined to be in off-state
The output end of the first switch tube applies the second predeterminated voltage, and second predeterminated voltage is less than the burning voltage.
Wherein, the output end of the first switch tube for being determined to be in off-state applies the second predeterminated voltage packet
It includes:
The turn-on instant for controlling the second switch is less than the turn-on instant of the first switch tube.
Wherein, the turn-on instant of the control second switch is less than the turn-on instant packet of the first switch tube
It includes:
First control signal is generated, and is input to the control terminal of the first switch tube；
Second control signal is generated, and is input to the control terminal of the second switch；
Higher than the arrival time of the level signal of the conducting voltage of the first switch tube in the first control signal, greatly
Reach the time higher than the level signal of the conducting voltage of the second switch in the second control signal.
Wherein, the conducting voltage of the second switch is less than the conducting voltage of the first switch tube.
Wherein, the output end of the first switch tube is connected with the output end of third switching tube, the third switching tube
Input terminal is connected with the battery, and it is pre- that the output end of the first switch tube for being determined to be in off-state applies second
If voltage includes:
It is in the conductive state to control the third switching tube.
Preferably, further includes:
It is detecting that the second switch is in the conductive state, or is detecting the electric current for flowing through the first switch tube
When in stable state, controls the third switching tube and be in an off state.
A kind of control device applied to battery charger, the battery charger include first switch tube, second
Switching tube, adaptor spigot and battery, the input terminal of the first switch tube are connected with the adaptor spigot, and described first
The output end of switching tube is connected with the input terminal of the second switch, the output end of the second switch and the battery phase
Even, the control device applied to battery charger includes:
Whether detection module, the voltage for detecting the adaptor spigot are more than or equal to the first predeterminated voltage, and described
One predeterminated voltage is less than for the burning voltage of adaptor spigot described in the battery charging process；
Determining module, for being determined as when the voltage of the adaptor spigot is more than or equal to first predeterminated voltage
The output end for the first switch tube being in an off state applies the second predeterminated voltage, and second predeterminated voltage is less than described
Burning voltage.
Wherein, the determining module includes:
First control unit, the turn-on instant for controlling the second switch are less than the conducting of the first switch tube
Moment.
Wherein, the first control unit includes:
First generates subelement, for generating first control signal, and is input to the control terminal of the first switch tube；
Second generates subelement, for generating second control signal, and is input to the control terminal of the second switch；Institute
It states in first control signal higher than the arrival time of the level signal of the conducting voltage of the first switch tube, is greater than described second
Be higher than the level signal of the conducting voltage of the second switch in control signal reaches the time.
Wherein, the output end of the first switch tube is connected with the output end of third switching tube, the third switching tube
Input terminal is connected with the battery, and the determining module includes:
Second control unit, it is in the conductive state for controlling the third switching tube.
Preferably, further includes:
Control module flows through described for detecting that the second switch is in the conductive state, or detecting
When the electric current of one switching tube is in stable state, controls the third switching tube and be in an off state.
A kind of electronic equipment, comprising: battery charger and as described in any of the above-described applied to battery charger
Control device.
It can be seen via above technical scheme that compared with prior art, the embodiment of the invention provides one kind to be applied to electricity
When the control method of pond charging circuit, power supply by adapter are that battery is powered, the voltage of adaptor spigot not be immediately reach
To burning voltage, but there is a uphill process, that is, need after a period of time, the voltage of adaptor spigot can just tend to be steady
Fixed (referred to as burning voltage) detects adapter in the embodiment of the present application at this point, power supply begins through adapter as battery power supply
It is a certain moment in the voltage uphill process of adaptor spigot at the time of the voltage of socket is more than or equal to the first predeterminated voltage,
The first predeterminated voltage of adaptor spigot is smaller than burning voltage at this time, and the first switch tube at the moment is in an off state, at this time
Apply the second predeterminated voltage for the output end of first switch tube, when the voltage of adaptor spigot tends towards stability voltage, i.e., first opens
When closing pipe conducting, the pressure difference of first switch tube output end and input terminal is the difference of burning voltage and the second predeterminated voltage, with
Burning voltage is compared with the difference of almost nil voltage in the prior art, greatly reduces first switch tube output end and input
The voltage difference at end, so that the power that first switch tube is born is within the scope of the tolerance of first switch tube, so as to avoid
The problem of first switch tube is damaged.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of schematic diagram of battery charger in the prior art；
Fig. 2 is a kind of flow diagram of the control method applied to battery charger provided by the embodiments of the present application；
Fig. 3 is a kind of structural schematic diagram of the control device applied to battery charger provided by the embodiments of the present application.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of control method provided by the embodiments of the present application, the battery which can be applied in electronic equipment fill
Circuit, Fig. 1 are just a kind of circuit diagram of implementation of battery charger.
Battery charger includes first switch tube, second switch, adaptor spigot and battery, the first switch
The input terminal of pipe is connected with the adaptor spigot, the input terminal of the output end of the first switch tube and the second switch
It is connected, the output end of the second switch is connected with the battery.
First switch tube can be insulated gate bipolar transistor IGBT or Metal-Oxide Semiconductor field effect transistor
MOSFET, MOSFET 11 as shown in figure 1；Second switch can be insulated gate bipolar transistor IGBT or metal-oxide half
Conductor field effect transistor M OSFET, MOSFET 12 as shown in figure 1；Adaptor spigot can be ADIN_1 as shown in figure 1.
Control method is as shown in Fig. 2, the control method includes:
Step S201: whether the voltage for detecting the adaptor spigot is more than or equal to the first predeterminated voltage.
When being charged for electronic equipment, electronic equipment is connected by adapter with power supply, is had on electronic equipment suitable
Orchestration socket, when power supply is connected by adapter with the adaptor spigot of electronic equipment, the voltage of adaptor spigot can be gradually
Rise, last voltage can tend to a stable burning voltage, just can be normally at this time the battery charging in electronic equipment, stablize
Voltage is the voltage of the adaptor spigot in for the battery charging process in electronic equipment.
First predeterminated voltage can be a voltage less than aforementioned stable voltage, specifically can according to actual conditions and
It is fixed.
Assuming that burning voltage is 20V, then the first predeterminated voltage can be 9V, 10V, 11V, 15V, 16V, 17V etc..
Step S202: it when the voltage of the adaptor spigot is more than or equal to first predeterminated voltage, is determined to be in
The output end of the first switch tube of off-state applies the second predeterminated voltage.
During battery charges in for electronic equipment, first switch tube and second switch are at conducting shape
State, but before for battery charging, first switch tube and second switch are in an off state, due in adaptor spigot
Voltage be the first predeterminated voltage when, do not charge to battery also, first switch tube is in an off state at this time, in order to avoid
When first switch tube is connected, the pressure difference between the input terminal and output end of first switch tube is very big, and first switch tube is caused to be damaged
The case where, first it can apply the second predeterminated voltage at the output end of first switch tube (such as end S1 of MOSFET 11), in order to protect
After the voltage of card adaptor spigot rises to burning voltage, first switch tube can be still connected, it is desirable that the second predeterminated voltage is less than steady
Constant voltage.
After applying the second predeterminated voltage, at the time of the voltage of adaptor spigot rises to burning voltage, i.e. first switch tube
At the time of conducting, the voltage difference of the input terminal of first switch tube and output end is the difference of burning voltage and the second predeterminated voltage.
And in the prior art, if not applying the second predeterminated voltage, at the time of first switch tube conducting, the output end of first switch tube
Voltage be almost 0 (because battery also needs the regular hour by the output end that second switch is applied to first switch tube,
In the moment that first switch tube and second switch simultaneously turn on, battery cannot immediately pass through second switch and apply the voltage to
The output end of first switch tube, in the moment, first switch tube may have been damaged), at this time first switch tube input terminal and
The pressure difference of output end is about burning voltage.
Control method provided by the embodiments of the present application applied to charging circuit, greatly reduces first switch tube input terminal
With the voltage at output end both ends, if indicating the input terminal of first switch tube and the pressure difference of output end, V=burning voltage-the with V
Two predeterminated voltages are indicated to flow through first switch tube and second switch when first switch tube and second switch are all connected with Id
The electric current of pipe, the then power P of first switch tube=(the-the second predeterminated voltage of burning voltage) * Id, since V is substantially reduced, so that
The power that one switching tube is born is within the scope of the tolerance of first switch tube, so as to avoid asking for first switch tube damage
Topic, improves the stability of charging circuit.
First switch tube output end apply the second predeterminated voltage mode there are many, the embodiment of the present application provide but not
It is limited to following two implementation.
The first implementation:
The turn-on instant for controlling the second switch is less than the turn-on instant of the first switch tube.
The turn-on instant of second switch is less than the turn-on instant of the first switch tube, refers to the closure of first switch tube
Moment is later than the closing moment of first switch tube.For example, second switch to turn-on instant be 2 points 50 seconds 10 minutes, first opens
Close pipe turn-on instant be 2 points 55 seconds 10 minutes, from time size, the turn-on instant of first switch tube is greater than second switch
Turn-on instant, in terms of time, the closing moment of first switch tube is later than the closing moment of first switch tube.
Since the output end of second switch is connected with battery, after second switch conducting, the voltage of battery will lead to
Second switch is crossed to be applied on the output end of first switch tube.At this point, first switch tube is connected again, then first switch tube is defeated
The voltage difference for entering end and output end is the difference of burning voltage and cell voltage.
In practical applications, for user, when electronic equipment is fail to open, user may think that the electricity of present battery
Amount has been 0, but for electronic equipment, even if the electricity of battery can not support user to open electronic equipment, battery
Still it can retain certain electricity, such as the 3S battery in notebook, even if user cannot be supported to open notebook, but voltage one
As be also maintained at 9V to 12.6V.It is, battery can apply second in advance in the output end of first switch tube by second switch
If voltage (such as voltage of 3S battery).
The first implementation is a kind of most implementation of drop originally without increasing any hardware in the electronic device.
Realize the mode of " turn-on instant for controlling the second switch is less than the turn-on instant of the first switch tube "
There are many, the embodiment of the present application provides but is not limited to following several implementations.
Implementation 1: the second switch and first switch tube of use meet the following conditions: the electric conduction of second switch
Pressure is less than the conducting voltage of first switch tube, for example, second switch can use conducting voltage for the switching tube of 2.5V, first
Switching tube can use conducting voltage for the switching tube of 4.5V.
At this point, the control terminal of first switch tube can be connected with the control terminal of second switch (as shown in Figure 1), Ke Yiyong
Same control signal control first switch tube and second switch, the control signal should meet: be higher than described the in control signal
The arrival time of the level signal of the conducting voltage of one switching tube, greater than the level for the conducting voltage for being higher than the second switch
Signal reaches the time, i.e., is higher than the arrival time of the level signal of the conducting voltage of the first switch tube in control signal,
Be later than the level signal of the conducting voltage higher than the second switch reaches the time, it is, in this period, second
Switching tube conducting, but first switch tube realizes cell voltage by second switch and is applied to first still in off-state
The purpose of the output end of switching tube.
It is understood that the control terminal of first switch tube and the control terminal of second switch can be separately connected it is respective
Signal is controlled, i.e. the control terminal of first switch tube and the control terminal of second switch is not attached to, and inputs first switch tube at this time
The first control signal of control terminal can be identical with the amplitude of the second control signal of the control terminal of input second switch, can also
With difference, it is necessary to meet following condition: higher than the level signal of the conducting voltage of the first switch tube in first control signal
Arrival time, the level signal greater than the conducting voltage for being higher than the second switch in the second control signal reaching
Time.
Implementation 2: the conducting voltage of first switch tube and second switch can be identical, needs to input first at this time and opens
The control signal for closing pipe and second switch meets the following conditions:
First control signal is generated, and is input to the control terminal of the first switch tube；Second control signal is generated, and defeated
Enter to the control terminal of the second switch；Higher than the electricity of the conducting voltage of the first switch tube in the first control signal
The arrival time of ordinary mail number, greater than the level signal for the conducting voltage for being higher than the second switch in the second control signal
Reach the time.
The control terminal of first switch tube and the control terminal of second switch are not attached in implementation 2.
Second of implementation:
Third switching tube is increased, the output end of third switching tube is connected with the output end of first switch tube, third switch
The input terminal of pipe is connected with battery, can be when the voltage of adaptor spigot is more than or equal to first predeterminated voltage, control the
The conducting of three switching tubes, the voltage of battery can be applied to the output end of first switch tube by third switching tube.
At the time of the conducting of third switching tube, first switch tube and second switch can be still in off-state.
In second of implementation, need to increase additional third switching tube.In this kind of implementation, first switch tube
Control terminal can be connected with the control terminal of second switch, can also be not attached to.The conducting of first switch tube and second switch
Voltage may be the same or different, and the conducting voltage of first switch tube can be more than or less than the electric conduction of second switch
Pressure.
Alternatively, being further added by a power supply in the electronic device, which is directly connected with the input terminal of third switching tube, at this time
The input terminal of third switching tube can not be connected with battery, after the conducting of third switching tube, the voltage of power supply can directly be applied
It is added in the output end of first switch tube, but this mode needs to increase power supply and third switching tube.
It is understood that if the implementation of " applying the second predeterminated voltage in the output end of first switch tube " is additional
The implementation for increasing third switching tube can allow the third pipe that opens the light to be constantly in then during charging normal for battery
At this moment on state will consume the electric energy of battery or additional increased power supply, it is therefore desirable to switch third an opportunity
Pipe disconnects, this opportunity, which can be, to be detected and currently be at the time of charge normal for battery, specifically: detecting
State that second switch is in the conductive state, or when detecting that the electric current for flowing through the first switch tube is in stable state, control
The third switching tube is made to be in an off state.
In any of the above-described control method applied to battery charger, the control letter of the control terminal of first switch tube is inputted
Number, input second switch control terminal control signal, input third switching tube control terminal control signal, can be by
What control chip or microcontroller in electronic equipment generated.
As shown in figure 3, being that a kind of control device structure applied to battery charger provided by the embodiments of the present application is shown
It is intended to, which includes:
Whether detection module 301, the voltage for detecting the adaptor spigot are more than or equal to the first predeterminated voltage.
When being charged for electronic equipment, usually, electronic equipment is connected by adapter with power supply, on electronic equipment
With adaptor spigot, when power supply is connected by adapter with the adaptor spigot of electronic equipment, the voltage of adaptor spigot
It can be gradually increasing, last voltage can tend to a stable burning voltage, just can normally fill at this time for the battery in electronic equipment
Electricity, burning voltage are the voltage of the adaptor spigot in for the battery charging process in electronic equipment.
First predeterminated voltage can be a voltage less than aforementioned stable voltage, specifically can according to actual conditions and
It is fixed.
Assuming that burning voltage is 20V, then the first predeterminated voltage can for 9V, 10,11V ..., 15V, 16V, 17V etc..
Determining module 302, for determining when the voltage of the adaptor spigot is more than or equal to first predeterminated voltage
Apply the second predeterminated voltage for the output end for the first switch tube being in an off state, second predeterminated voltage is less than institute
State burning voltage.
During battery charges in for electronic equipment, first switch tube and second switch are at conducting shape
State, but before for battery charging, first switch tube and second switch are in an off state, due in adaptor spigot
Voltage be the first predeterminated voltage when, do not charge to battery also, first switch tube is in an off state at this time, in order to avoid
When first switch tube is connected, the pressure difference between the input terminal and output end of first switch tube is very big, and first switch tube is caused to be damaged
The case where, first it can apply the second predeterminated voltage at the output end of first switch tube (such as end S1 of MOSFET 11), in order to protect
After the voltage of card adaptor spigot rises to burning voltage, first switch tube can be still connected, it is desirable that the second predeterminated voltage is less than steady
Constant voltage.
After applying the second predeterminated voltage, at the time of the voltage of adaptor spigot rises to burning voltage, i.e. first switch tube
At the time of conducting, the voltage difference of the input terminal of first switch tube and output end is the difference of burning voltage and the second predeterminated voltage.
And in the prior art, if not applying the second predeterminated voltage, at the time of first switch tube conducting, the output end of first switch tube
Voltage be almost 0 (because battery also needs the regular hour by the output end that second switch is applied to first switch tube,
In the moment that first switch tube and second switch simultaneously turn on, battery cannot immediately pass through second switch and apply the voltage to
The output end of first switch tube, in the moment, first switch tube may have been damaged), at this time first switch tube input terminal and
The pressure difference of output end is about burning voltage.
Control method provided by the embodiments of the present application applied to charging circuit, greatly reduces first switch tube input terminal
With the voltage at output end both ends, if indicating the input terminal of first switch tube and the pressure difference of output end, V=burning voltage-the with V
Two predeterminated voltages are indicated to flow through first switch tube and second switch when first switch tube and second switch are all connected with Id
The voltage of pipe, the then power P of first switch tube=(the-the second predeterminated voltage of burning voltage) * Id, since V is substantially reduced, so that
The power that one switching tube is born is within the scope of the tolerance of first switch tube, so as to avoid asking for first switch tube damage
Topic, improves the stability of charging circuit.
There are many implementation, the embodiment of the present application is provided but is not limited to determining module in above-mentioned control device embodiment
Following two implementation.
The first implementation:
Determining module includes:
First control unit, the turn-on instant for controlling the second switch are less than the conducting of the first switch tube
Moment.
The turn-on instant of second switch is less than the turn-on instant of the first switch tube, refers to the closure of first switch tube
Moment is later than the closing moment of first switch tube.For example, second switch to turn-on instant be 2 points 50 seconds 10 minutes, first opens
Close pipe turn-on instant be 2 points 55 seconds 10 minutes, from time size, the turn-on instant of first switch tube is greater than second switch
Turn-on instant, in terms of time, the closing moment of first switch tube is later than the closing moment of first switch tube.
Since the output end of second switch is connected with battery, after second switch conducting, the voltage of battery will lead to
Second switch is crossed to be applied on the output end of first switch tube.At this point, first switch tube is connected again, then first switch tube is defeated
The voltage difference for entering end and output end is the difference of burning voltage and cell voltage.
In practical applications, for user, when electronic equipment is fail to open, user may think that the electricity of present battery
Amount has been 0, but for electronic equipment, even if the electricity of battery can not support user to open electronic equipment, battery
Still it can retain certain electricity, such as the 3S battery in notebook, even if user cannot be supported to open notebook, but voltage one
As be also maintained at 9V to 12.6V.It is, battery can apply second in advance in the output end of first switch tube by second switch
If voltage (such as voltage of 3S battery).
The first implementation is a kind of most implementation of drop originally without increasing any hardware in the electronic device.
First control unit may include:
First generates subelement, for generating first control signal, and is input to the control terminal of the first switch tube；The
Two generate subelement, for generating second control signal, and are input to the control terminal of the second switch；First control
Higher than the arrival time of the level signal of the conducting voltage of the first switch tube in signal, it is greater than in the second control signal
Level signal higher than the conducting voltage of the second switch reaches the time.
The control terminal of first switch tube and the control terminal of second switch are not attached in above-mentioned implementation.
Second of implementation:
Determining module includes:
Second control unit, it is in the conductive state for controlling the third switching tube.
Third switching tube, the output end and the output end phase of first switch tube of third switching tube are increased in electronic equipment
Even, the input terminal of third switching tube is connected with battery, can be more than or equal to the described first default electricity in the voltage of adaptor spigot
When pressure, control third switching tube conducting, the voltage of battery can be applied to the output end of first switch tube by third switching tube.
At the time of the conducting of third switching tube, first switch tube and second switch can be still in off-state.
In second of implementation, need to increase additional third switching tube.In this kind of implementation, first switch tube
Control terminal can be connected with the control terminal of second switch, can also be not attached to.The conducting of first switch tube and second switch
Voltage may be the same or different, and the conducting voltage of first switch tube can be more than or less than the electric conduction of second switch
Pressure.
Alternatively, being further added by a power supply in the electronic device, which is directly connected with the input terminal of third switching tube, at this time
The input terminal of third switching tube can not be connected with battery, after the conducting of third switching tube, the voltage of power supply can directly be applied
It is added in the output end of first switch tube, but this mode needs to increase power supply and third switching tube.
It is understood that if the implementation of " applying the second predeterminated voltage in the output end of first switch tube " is additional
The implementation for increasing third switching tube can allow the third pipe that opens the light to be constantly in then during charging normal for battery
At this moment on state will consume the electric energy of battery or additional increased power supply, it is therefore desirable to switch third an opportunity
Pipe disconnects, this opportunity, which can be, to be detected and be currently at the time of charge normal for battery, specifically, the application application
In the control device of charging circuit further include: control module, for detecting that the second switch is in the conductive state, or
When detecting that the electric current for flowing through the first switch tube is in stable state, controls the third switching tube and be in disconnection shape
State.
The embodiment of the present application also provides a kind of electronic equipment, including any of the above-described control applied to battery charger
Device and battery charger.
The above-mentioned control device applied to battery charger can control device, and controller can be control chip or micro-
Controller.
Optionally, controller applies second in the output end for the first switch tube for being determined to be in off-state and presets
When voltage, be specifically used for: the turn-on instant for controlling the second switch is less than the turn-on instant of the first switch tube.
Specifically, the control terminal of first switch tube can be connected with the control terminal of second switch (as shown in Figure 1), control
Device can have the first signal output end, the control of the control terminal and second switch of the first signal output end and first switch tube
End be connected, controller can produce meet the following conditions control signal (the control signal by the first signal output end it is defeated
Out): being higher than the arrival time of the level signal of the conducting voltage of the first switch tube in control signal, be greater than and be higher than described the
The level signal of the conducting voltage of two switching tubes reaches the time, i.e., is higher than the electric conduction of the first switch tube in control signal
The arrival time of the level signal of pressure, be later than the level signal of the conducting voltage higher than the second switch reaches the time,
It is, in this period, second switch conducting, but first switch tube realizes cell voltage still in off-state
The purpose of the output end of first switch tube is applied to by second switch.
It is understood that the control terminal of first switch tube and the control terminal of second switch can be separately connected it is respective
Signal is controlled, i.e. the control terminal of first switch tube and the control terminal of second switch be not attached to, at this point, controller may include the
Binary signal output end and third signal output end, second signal output end export first control signal, second signal output end with
The control terminal of first switch tube is connected, and third signal output end exports second control signal, and third signal output end is opened with second
The control terminal for closing pipe is connected, and it is necessary to meet following condition with second control signal for first control signal: high in first control signal
In the arrival time of the level signal of the conducting voltage of the first switch tube, it is greater than in the second control signal described in being higher than
The level signal of the conducting voltage of second switch reaches the time.
Optionally, controller is when the turn-on instant for controlling the second switch is less than the conducting of the first switch tube
When quarter, it is specifically used for: generates first control signal, and be input to the control terminal of the first switch tube；Generate the second control letter
Number, and it is input to the control terminal of the second switch；It is higher than the conducting of the first switch tube in the first control signal
The arrival time of the level signal of voltage, greater than the conducting voltage for being higher than the second switch in the second control signal
Level signal reaches the time.
At this point, to the conducting voltage of first switch tube and second switch just without any restrictions, i.e. first switch tube
Conducting voltage can be identical or different with the conducting voltage of second switch.
Optionally, the conducting voltage of the second switch in battery charger is less than leading for the first switch tube
Be powered pressure.
For example, second switch can use conducting voltage for the switching tube of 2.5V, first switch tube can be using conducting
Voltage is the switching tube of 4.5V.
Optionally, the electronic equipment further include: third switching tube, the output end of the third switching tube and described first
The output end of switching tube is connected, and the input terminal of the third switching tube is connected with the battery, correspondingly, the controller,
When being determined to be in output end the second predeterminated voltage of application of the first switch tube of off-state, it is specifically used for: control institute
It is in the conductive state to state third switching tube.
Specifically, controller has fourth signal output end, the third control signal that controller generates can pass through the 4th
Signal output end output, the 4th control signal meet the following conditions: when the voltage of the adaptor spigot is more than or equal to described the
At the time of one predeterminated voltage, the amplitude of the 4th control signal is more than or equal to the conducting voltage of third switching tube.
Optionally, the electronic equipment further include: third switching tube and power supply, the output end of the third switching tube and institute
The output end for stating first switch tube is connected, and the input terminal of the third switching tube is connected with the power supply, correspondingly, the control
Device is specifically used for when the output end for the first switch tube for being determined to be in off-state applies the second predeterminated voltage: control
It is in the conductive state to make the third switching tube.
Optionally, the controller is also used to: being detected that the second switch is in the conductive state, or is being detected
When flowing through the electric current of the first switch tube and being in stable state, controls the third switching tube and be in an off state.
In order to which those skilled in the art more understand the control provided by the embodiments of the present application applied to battery charger
Method, apparatus and electronic equipment, are also tested.
Burning voltage is 20V, and the second predeterminated voltage is 10V, when first switch tube and second switch simultaneously turn on
It carves, the electric current for flowing through first switch tube and second switch is Id, in the prior art the power of first switch tube are as follows: P=V*Id
=20V*Id, using the power of the first switch tube of technical solution provided by the embodiments of the present application are as follows: P=Vds*Id=10V*
Id。
Compared by calculating data, the function of first switch tube can be effectively reduced in technical solution provided by the embodiments of the present application
Rate improves first switch tube reliability, reduces the after-sales service number of electronic equipment, the user experience is improved.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use the application.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (12)
1. a kind of control method applied to battery charger, which is characterized in that the battery charger is opened including first
Guan Guan, second switch, adaptor spigot and battery, the input terminal of the first switch tube and the adaptor spigot phase
Even, the output end of the first switch tube is connected with the input terminal of the second switch, the output end of the second switch
It is connected with the battery, the control method applied to battery charger includes:
Whether the voltage for detecting the adaptor spigot is more than or equal to the first predeterminated voltage, and first predeterminated voltage is less than for institute
State the burning voltage of adaptor spigot described in battery charging process；
When the voltage of the adaptor spigot is more than or equal to first predeterminated voltage, it is determined to be in the described of off-state
The output end of first switch tube applies the second predeterminated voltage, and second predeterminated voltage is less than the burning voltage.
2. being applied to the control method of battery charger according to claim 1, which is characterized in that described to be determined to be in
The output end of the first switch tube of off-state applies the second predeterminated voltage
The turn-on instant for controlling the second switch is less than the turn-on instant of the first switch tube.
3. being applied to the control method of battery charger according to claim 2, which is characterized in that the control described the
The turn-on instant of two switching tubes be less than the first switch tube turn-on instant include:
First control signal is generated, and is input to the control terminal of the first switch tube；
Second control signal is generated, and is input to the control terminal of the second switch；
Higher than the arrival time of the level signal of the conducting voltage of the first switch tube in the first control signal, it is greater than institute
It states in second control signal and reaches the time higher than the level signal of the conducting voltage of the second switch.
4. according to claim 1 to 3 any control methods for being applied to battery charger, which is characterized in that described the
The conducting voltage of two switching tubes is less than the conducting voltage of the first switch tube.
5. being applied to the control method of battery charger according to claim 1, which is characterized in that the first switch tube
Output end be connected with the output end of third switching tube, the input terminal of the third switching tube is connected with the battery, it is described really
The output end for being set to the first switch tube being in an off state applies the second predeterminated voltage and includes:
It is in the conductive state to control the third switching tube.
6. being applied to the control method of battery charger according to claim 5, which is characterized in that further include:
It is detecting that the second switch is in the conductive state, or is detecting that the electric current for flowing through the first switch tube is in
When stable state, controls the third switching tube and be in an off state.
7. a kind of control device applied to battery charger, which is characterized in that the battery charger is opened including first
Guan Guan, second switch, adaptor spigot and battery, the input terminal of the first switch tube and the adaptor spigot phase
Even, the output end of the first switch tube is connected with the input terminal of the second switch, the output end of the second switch
It is connected with the battery, the control device applied to battery charger includes:
Whether detection module, the voltage for detecting the adaptor spigot are more than or equal to the first predeterminated voltage, and described first is pre-
If voltage is less than for the burning voltage of adaptor spigot described in the battery charging process；
Determining module, for being determined to be in when the voltage of the adaptor spigot is more than or equal to first predeterminated voltage
The output end of the first switch tube of off-state applies the second predeterminated voltage, and second predeterminated voltage is less than the stabilization
Voltage.
8. being applied to the control device of battery charger according to claim 7, which is characterized in that the determining module packet
It includes:
First control unit, when the turn-on instant for controlling the second switch is less than the conducting of the first switch tube
It carves.
9. being applied to the control device of battery charger according to claim 8, which is characterized in that first control is single
Member includes:
First generates subelement, for generating first control signal, and is input to the control terminal of the first switch tube；
Second generates subelement, for generating second control signal, and is input to the control terminal of the second switch；Described
It is higher than the arrival time of the level signal of the conducting voltage of the first switch tube in one control signal, is greater than second control
Reach the time higher than the level signal of the conducting voltage of the second switch in signal.
10. being applied to the control device of battery charger according to claim 7, which is characterized in that the first switch
The output end of pipe is connected with the output end of third switching tube, and the input terminal of the third switching tube is connected with the battery, described
Determining module includes:
Second control unit, it is in the conductive state for controlling the third switching tube.
11. being applied to the control device of battery charger according to claim 10, which is characterized in that further include:
Control module for detecting that the second switch is in the conductive state, or is detecting that flowing through described first opens
When the electric current of pass pipe is in stable state, controls the third switching tube and be in an off state.
12. a kind of electronic equipment characterized by comprising battery charger and answered as described in claim 7 to 11 is any
Control device for battery charger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610670907.8A CN106230052B (en) | 2016-08-15 | 2016-08-15 | Applied to the control method of battery charger, device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610670907.8A CN106230052B (en) | 2016-08-15 | 2016-08-15 | Applied to the control method of battery charger, device and electronic equipment |
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| Publication Number | Publication Date |
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| CN106230052A CN106230052A (en) | 2016-12-14 |
| CN106230052B true CN106230052B (en) | 2019-02-05 |
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| CN116505628B (en) * | 2023-06-28 | 2024-01-19 | 深圳市澳博森科技有限公司 | Intelligent multi-port adapter charging control method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101351905A (en) * | 2005-12-29 | 2009-01-21 | 摩托罗拉公司 | Methods and devices for battery hot swapping |
| CN102255363A (en) * | 2011-07-27 | 2011-11-23 | 广东易事特电源股份有限公司 | Charging circuit topology for solar controller under comprehensive protection and control method thereof |
| CN103513742A (en) * | 2012-06-28 | 2014-01-15 | 联想(北京)有限公司 | Terminal device |
| CN104699217A (en) * | 2013-12-04 | 2015-06-10 | 联想(北京)有限公司 | Information processing method and electronic device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9748774B2 (en) * | 2012-09-07 | 2017-08-29 | Access Business Group International Llc | System and method for bidirectional wireless power transfer |
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2016
- 2016-08-15 CN CN201610670907.8A patent/CN106230052B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101351905A (en) * | 2005-12-29 | 2009-01-21 | 摩托罗拉公司 | Methods and devices for battery hot swapping |
| CN102255363A (en) * | 2011-07-27 | 2011-11-23 | 广东易事特电源股份有限公司 | Charging circuit topology for solar controller under comprehensive protection and control method thereof |
| CN103513742A (en) * | 2012-06-28 | 2014-01-15 | 联想(北京)有限公司 | Terminal device |
| CN104699217A (en) * | 2013-12-04 | 2015-06-10 | 联想(北京)有限公司 | Information processing method and electronic device |
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