CN207557870U - A kind of electric power system of two-in-one laptop and two-in-one laptop - Google Patents
A kind of electric power system of two-in-one laptop and two-in-one laptop Download PDFInfo
- Publication number
- CN207557870U CN207557870U CN201721526944.8U CN201721526944U CN207557870U CN 207557870 U CN207557870 U CN 207557870U CN 201721526944 U CN201721526944 U CN 201721526944U CN 207557870 U CN207557870 U CN 207557870U
- Authority
- CN
- China
- Prior art keywords
- controllable switch
- battery
- charging chip
- notebook
- pmos tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of electric power system of two-in-one laptop, including pedestal battery, the first charging chip, charger interface, the second charging chip, the first controllable switch, diode, the second controllable switch and Notebook Battery；When pedestal battery stops as notebook system power supply, Notebook Battery is powered immediately by diode to notebook system, reduces the risk of power down；When it is that two pieces of batteries charge simultaneously to connect charger, each charging chip provides the charging voltage of its needs for individual one piece of battery, just will not pour in down a chimney there is a situation where electric current, improve the safety and reliability of electric power system.The invention also discloses a kind of two-in-one laptops, have identical advantageous effect with above-mentioned electric power system.
Description
Technical field
The utility model is related to laptop field, more particularly to a kind of power supply system of two-in-one laptop
System, the utility model further relate to a kind of two-in-one laptop.
Background technology
In order to realize the light and portable of laptop, many laptops make the form of tablet computer (also referred to as
Two-in-one laptop), in order to increase the cruising ability of two-in-one laptop, many producers are in two-in-one notebook electricity
One piece of pedestal battery is increased on the pedestal of brain.In the prior art, since pedestal and two-in-one laptop are inserted using heat
The form pulled out, general double-battery electric power system pull out pedestal when notebook system is run there are power down risk, so as to cause
System failure and data are lost, in addition, when double-battery electric power system charges at the same time for two pieces of batteries, it is possible that electric current fills
Enter the situation that some battery damages battery.
Therefore, how to provide a kind of scheme for solving above-mentioned technical problem is that those skilled in the art need to solve at present
Problem.
Utility model content
The purpose of this utility model is to provide a kind of electric power system of two-in-one laptop, reduces power down risk,
Improve the safety and reliability of electric power system；The another object of the utility model is to provide a kind of including above-mentioned electric power system
Two-in-one laptop, power down risk is low, and the safety of electric power system and reliability are high.
In order to solve the above technical problems, the utility model provides a kind of electric power system of two-in-one laptop, packet
Include pedestal battery, the first charging chip, charger interface, the second charging chip, the first controllable switch, diode, second controllably
Switch and Notebook Battery, wherein：
Anode of the first end of first controllable switch respectively with Notebook Battery and diode is connect, the first controllable switch
Output terminal of the second end respectively with notebook system, the cathode of diode and the second charging chip is connect, the first controllable switch
Control terminal is connect with the first control terminal of the second charging chip, the input terminal of the second charging chip respectively with the first charging chip
The first end of output terminal and the second controllable switch connects, and the input terminal of the first charging chip is connected by charger interface and charger
It connects, the second end of the second controllable switch is connect with pedestal battery, the control terminal of the second controllable switch and the control of the first charging chip
End connection processed；
Diode, for stopping after notebook system is powered in pedestal battery, before the first controllable switch is closed, pen
Remember that this battery is powered by it for notebook system；First charging chip, for after first control signal is received, control the
Two controllable switches are closed, to export the charging voltage of its needs for pedestal battery；Second charging chip, for receiving
After two control signals, the first controllable switch of control is closed, to export the charging voltage of its needs for Notebook Battery.
Preferably, communication ends of the communication ends of the first charging chip also with the second charging chip are connect, the first charging chip
It is additionally operable to：
When charger is simultaneously notebook system, Notebook Battery and pedestal battery powered, the defeated of charger is detected
Go out power, if output power is more than its rated power, to reduce the charging current of pedestal battery as the first priority, with reduction
The charging current of Notebook Battery is adjusted the output power of charger for the second priority, until the output work of charger
Rate is equal to its rated power.
Preferably, which further includes：
Third controllable switch, the first end of third controllable switch are connect with the second end of the first controllable switch, and third is controllable
The second end of switch is connect with the first end of the second controllable switch, and the of the control terminal of third controllable switch and the second charging chip
Two control terminals connect；
Second charging chip is additionally operable to be that be converted to pedestal battery be notes for notebook system power supply by Notebook Battery
During this system is powered, after the voltage for detecting pedestal battery, the shutdown of the first controllable switch is first controlled to control third can again
Control switch is closed.
Preferably, which further includes：
4th controllable switch and Charge Management control unit；
The first end of 4th controllable switch is connect with pedestal battery, second end and the second controllable switch of the 4th controllable switch
Second end connection, the control terminal of the 4th controllable switch connect with the first control terminal of Charge Management control unit, Charge Management
The test side of control unit is connect with pedestal battery；
Charge Management control unit, for when the electricity for detecting pedestal battery is reduced to preset value, shutdown the 4th can
Control switch.
Preferably, the second control terminal of Charge Management control unit respectively with the control terminal of third controllable switch and second
The control terminal connection of controllable switch, Charge Management control unit are additionally operable to after third control signal is received, and control second can
Control switch, third controllable switch and the 4th controllable switch are closed, in order to which Notebook Battery is to pedestal battery powered.
Preferably, Charge Management control unit is embedded controller EC.
Preferably, the first controllable switch be the first P-channel metal-oxide-semiconductor PMOS tube, the drain electrode of the first PMOS tube
As the first end of the first controllable switch, the second end of the source electrode of the first PMOS tube as the first controllable switch, the first PMOS tube
Control terminal of the grid as the first controllable switch, the parasitic body diode of the first PMOS tube is as diode；
Second controllable switch is the second PMOS tube, the first end of the source electrode of the second PMOS tube as the second controllable switch, the
Second end of the drain electrode as the second controllable switch of two PMOS tube, the control of the grid of the second PMOS tube as the second controllable switch
End；
Third controllable switch is third PMOS tube, first end of the drain electrode as third controllable switch of third PMOS tube, the
Second end of the source electrode of three PMOS tube as third controllable switch, the control of the grid of third PMOS tube as third controllable switch
End；
4th controllable switch is the 4th PMOS tube, the first end of the source electrode of the 4th PMOS tube as the 4th controllable switch, the
Second end of the drain electrode as the 4th controllable switch of four PMOS tube, the control of the grid of the 4th PMOS tube as the 4th controllable switch
End.
Preferably, the first charging chip and/or the second charging chip are buck-boost type Buck-Boost chips.
Preferably, the first charging chip and/or the second charging chip are filling based on narrow voltage DC charging NVDC frameworks
Electrical chip.
In order to solve the above technical problems, the utility model additionally provides a kind of two-in-one laptop, including above-mentioned
The electric power system of the two-in-one laptop of one.
As it can be seen that in the utility model, when pulling out pedestal in the case that pedestal battery is individually for notebook system power supply, pen
Remember that this battery is powered immediately by diode to notebook system, reduce the risk of power down, electric power system is in connection charger
When, the first charging chip controls the second controllable switch to be closed after receiving first control signal, and what output pedestal battery needed fills
Piezoelectric voltage, the second charging chip control the first controllable switch to be closed after receiving second control signal, and output Notebook Battery needs
The charging voltage wanted, each battery individually correspond to a charging chip, in this way, charger is Notebook Battery and pedestal at the same time
When battery charges, it just will not pour in down a chimney there is a situation where electric current, improve the safety and reliability of electric power system.
The utility model additionally provides a kind of two-in-one laptop, has the as above identical beneficial effect of electric power system
Fruit.
Description of the drawings
It, below will be to the prior art and embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is a kind of structure diagram of two-in-one laptop electric power system provided by the utility model；
Fig. 2 is the structure diagram of the two-in-one laptop electric power system of another kind provided by the utility model.
Specific embodiment
The core of the utility model is to provide a kind of electric power system of two-in-one laptop, reduces power down risk,
Improve the safety and reliability of electric power system；Another core of the utility model is to provide a kind of including above-mentioned electric power system
Two-in-one laptop, power down risk is low, and the safety of electric power system and reliability are high.
Purpose, technical scheme and advantage to make the utility model embodiment are clearer, new below in conjunction with this practicality
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, those of ordinary skill in the art's all other embodiments obtained without making creative work, belongs to
The range of the utility model protection.
It please refers to Fig.1, Fig. 1 is a kind of structural representation of two-in-one laptop electric power system provided by the utility model
Figure, including pedestal battery 1, the first charging chip 2, charger interface 3, the second charging chip 4, the first controllable switch 5, diode
6th, the second controllable switch 7 and Notebook Battery 8, wherein：
Anode of the first end of first controllable switch 5 respectively with Notebook Battery 8 and diode 6 is connect, and first controllably opens
Output terminal of the second end of pass 5 respectively with notebook system, the cathode of diode 6 and the second charging chip 4 is connect, and first is controllable
The control terminal of switch 5 is connect with the first control terminal of the second charging chip 4, and the input terminal of the second charging chip 4 is respectively with first
The first end of the output terminal of charging chip 2 and the second controllable switch 7 connects, and the input terminal of the first charging chip 2 passes through charger
Interface 3 is connect with charger, and the second end of the second controllable switch 7 is connect with pedestal battery 1, the control terminal of the second controllable switch 7
It is connect with the control terminal of the first charging chip 2；
Diode 6, for stopping after notebook system is powered in pedestal battery 1,5 closure of the first controllable switch
Before, Notebook Battery 8 is powered by it for notebook system；First charging chip 2, for receiving first control signal
Afterwards, the second controllable switch 7 of control is closed, to export its charging voltage needed for pedestal battery 1；Second charging chip 4 is used
In after second control signal is received, the first controllable switch 5 of control is closed, to export what it was needed for Notebook Battery 8
Charging voltage.
In view of in the prior art, when pedestal battery 1 is individually powered for notebook system, pulling out pedestal or bottom suddenly
Seat 1 electricity of battery exhausts, at this time if switched without the control being comparatively fast closed between Notebook Battery 8 and notebook system, pen
This system is remembered there are larger power down risk, and the diode 6 in the utility model embodiment can reduce falling for notebook system
Risk, in these cases, it is that 6 cathode of the moment diode presentation that notebook system is powered is low to stop due to pedestal battery 1
Current potential, Notebook Battery 8 can be powered by diode 6 to notebook system immediately, when the second charging chip 4 detects pedestal
The first controllable switch 5 is opened during the loss of voltage of battery 1, Notebook Battery 8 is normally powered for notebook system, greatly reduced
The risk of power down.
Further, since charging chip can only export a kind of voltage simultaneously, it is contemplated that Double-battery powered system of the prior art
System using charging chip can only selected as one piece of battery charging therein, if being two pieces of batteries chargings simultaneously, fill
The output voltage of electrical chip is likely to be higher than the charging voltage that wherein certain block battery needs, and there are electric currents between this two pieces of batteries
The risk poured in down a chimney, and then battery is damaged, in the utility model embodiment, when electric power system is connected by charger interface 3
When connecing charger, charger is powered simultaneously for notebook system, pedestal battery 1 and Notebook Battery 8, the first charging chip 2
It can detect the charging voltage that pedestal battery 1 needs, then voltage is adjusted by its internal regulating circuit, then
1 and second charging chip 4 of pedestal battery is delivered to, the second charging chip 4 may also detect that filling for the needs of Notebook Battery 8
Then piezoelectric voltage is adjusted voltage by its internal regulating circuit, is then sent to Notebook Battery 8 and notebook system
System, every piece of charging chip can provide the charging voltage of its needs for the battery of each Self management, and will not be damaged battery
Situation.
Specifically, when electric power system connects charger, the first charging chip 2, which receives, controls the after first control signal
Two controllable switches 7 are closed, first control signal here can be by the pre-set control signal of the devices such as charging chip,
Or the control signal that user is sent according to demand by external program, the second control that the second charging chip 4 receives
Signal processed can be the electric current that the first charging chip 2 is conveyed to the second charging chip 4, or two kinds of above-mentioned situations, this
Utility model does not limit herein.
Specifically, the first charging chip 2 and the second charging chip 4 can pass through the clock signal of the battery of each Self management
The charging voltage that pin and data pin need the battery of each Self management is detected, naturally it is also possible to by others side
Formula obtains the charging voltage of the battery of each Self management, and the utility model does not limit herein.
Wherein, the framework of the first charging chip 2 and the second charging chip 4 can be many in the utility model embodiment
Kind, such as NVDC (Narrow Voltage Direct Current, narrow voltage DC charging) frameworks and HPB (Hybrid
Power Boost, Technology of Hybrid Electric Vehicle) structure etc., the utility model does not limit herein.
In view of being in the prior art set on the base one of charging chip, this block charging chip on pedestal is just
It needs to select specific charging chip, increases cost, two pieces of charging chips are all disposed within notebook mainboard by the utility model
On, cost is both reduced, is also convenient for control and management to two pieces of charging chips.
Specifically, the type of the first controllable switch 5 and the second controllable switch 7 in the utility model embodiment can be very
It is a variety of, such as MOS (Metal Oxide Semiconductor, metal-oxide semiconductor (MOS)) pipe, triode etc., this practicality is newly
Type does not limit herein.
As it can be seen that in the utility model, when pulling out pedestal in the case that pedestal battery is individually for notebook system power supply, pen
Remember that this battery is powered immediately by diode to notebook system, reduce the risk of power down, electric power system is in connection charger
When, the first charging chip controls the second controllable switch to be closed after receiving first control signal, and what output pedestal battery needed fills
Piezoelectric voltage, the second charging chip control the first controllable switch to be closed after receiving second control signal, and output Notebook Battery needs
The charging voltage wanted, each battery individually correspond to a charging chip, in this way, charger is Notebook Battery and pedestal at the same time
When battery charges, it just will not pour in down a chimney there is a situation where electric current, improve the safety and reliability of electric power system.
On the basis of above-described embodiment：
As a kind of preferred embodiment, the communication ends of the first charging chip 2 also connect with the communication ends of the second charging chip 4
It connects, the first charging chip 2 is additionally operable to：
When charger is that notebook system, Notebook Battery 8 and pedestal battery 1 are powered simultaneously, charger is detected
Output power, if output power is more than its rated power, to reduce the charging current of pedestal battery 1 as the first priority, with
The charging current for reducing Notebook Battery 8 is adjusted the output power of charger for the second priority, until charger
Output power is equal to its rated power.
During in view of powering at the same time for two pieces of batteries and notebook system in the prior art, charging chip, which can not be learnt, to be filled
The output power of electric appliance or one of charging chip can detect the output power of charger, but due to two pieces of chargings
It does not communicate between chip, causes another piece of charging chip that can not learn the output power of charger, in the case that above-mentioned several,
Charging chip just can not well be adjusted the output power of charger, its output power is made to be equal to rated power, is shortened
The service life of charger, the communication ends of the first charging chip 2 and second charging chip 4 in the utility model embodiment
Connection, the output power of charger that the first charging chip 2 detects can be transmitted to the second charging chip 4 by communication ends, when
First charging chip 2 detects that the output power of charger is more than its rated power, then the charging current of pedestal battery 1 is controlled to subtract
It is small so that the output power of charger reduces, when the second charging chip 4 detects that the charging of pedestal battery 1 is electric by communication ends
If the output power of charger is also greater than its rated power when stream is zero, the charging current of Notebook Battery 8 is controlled to reduce,
Until the output power of charger is equal to its rated power, the service life of charger is increased.
Specifically, when the first charging chip 2 and the second charging chip 4 detect that the output power of charger is less than its volume
When determining power, the charging current of two pieces of batteries can be restored, first can gradually restore the charging electricity of Notebook Battery 8
Stream can also first restore the charging current of pedestal battery 1, which can fully utilize the rated power of charger,
Charging rate when idle system or shutdown is accelerated, reduces the charging time, in addition, can be realized using two charging chips
The output power of charger and the balance of rated power do not need to complicated software and hardware control.
Specifically, the strategy of above-mentioned control pedestal battery 1 and 8 charging current of Notebook Battery can be pre- in the form of program
It is first configured in two charging chips, user can also send different control programs to charging according to different demands
Cheng Jinhang is controlled, and above-mentioned strategy or other kinds, the utility model do not limit herein.
Specifically, the mode of above-mentioned detection charger output power can be a precision resistance being connect with charger,
First charging chip 2 and the second charging chip 4 can obtain the defeated of charger by detecting the voltage at precision resistance both ends
Go out electric current, along with the output voltage that known charger is constant, its output power can be obtained, it is of course also possible to pass through
Other modes detect the output power of charger and transmission, and the utility model does not limit herein.
Specifically, the first charging chip 2 and the second charging chip 4 adjust the side of the charging current of the battery of each Self management
Formula can be to change the output voltage of itself by a small margin, and so, charging current can have significantly for battery
Change, can be realized according to the regulating circuit of two charging chips itself, control is easy, at low cost.
As a kind of preferred embodiment, which further includes：
Third controllable switch 9, the first end of third controllable switch 9 are connect with the second end of the first controllable switch 5, and third can
The second end of control switch 9 is connect with the first end of the second controllable switch 7, the control terminal of third controllable switch 9 and the second charging core
The second control terminal connection of piece 4；
Second charging chip 4 is additionally operable to be that be converted to pedestal battery 1 be pen for notebook system power supply by Notebook Battery 8
During remembering this system power supply, after the voltage for detecting pedestal battery 1, the first controllable switch 5 is first controlled to turn off and controls the again
Three controllable switches 9 are closed.
Specifically, when pedestal battery 1 accesses, the second charging chip 4 can detect the voltage of pedestal battery 1, so
It makes a response rapidly afterwards, is first turned off the first controllable switch 5, then open third controllable switch 9, such pedestal battery 1 can pass through
Third controllable switch 9 is notebook system power supply, is notebook system power supply with respect to the second charging chip 4, by the
The power supply of three controllable switches 9 can reduce loss, improve power supply efficiency, and third controllable switch 9 is in 5 shutdown of the first controllable switch
After reclose, electric current can be prevented to flow into Notebook Battery 8, play the role of isolation, effective protection Notebook Battery is not
It is damaged.
Specifically, the second charging chip 4 turned off after the voltage for detecting pedestal battery 1 first controllable switch 5 and
Be closed third controllable switch 9 can approximation regard moment completion as, pedestal battery 1 can be immediately notes by third controllable switch 9
This system is powered, even if with having time interval, pen before being closed third controllable switch after the first controllable switch 5 is turned off
Remember that this battery 8 can also be powered in this interval by diode 6 for notebook system, the feelings of notebook power down will not occur
Condition.
Wherein, the voltage of pedestal battery 1 can also be adjusted to and pen by the second charging chip 4 upon the reception of control signals
Exported after remembering the identical voltage of this battery 8, at the same be notebook system power supply and be that Notebook Battery 8 charges, control here
Signal processed can pre-set program determine, or user according to demand pass through external program send control believe
Number.
As a kind of preferred embodiment, which further includes：
4th controllable switch 10 and Charge Management control unit 11；
The first end of 4th controllable switch 10 is connect with pedestal battery 1, and the second end and second of the 4th controllable switch 10 can
The second end connection of control switch 7, the control terminal of the 4th controllable switch 10 connect with the first control terminal of Charge Management control unit 11
It connects, the test side of Charge Management control unit 11 is connect with pedestal battery 1；
Charge Management control unit 11, for when the electricity for detecting pedestal battery 1 is reduced to preset value, turning off the 4th
Controllable switch 10.
Specifically, in view of pedestal battery 1 for notebook system power when, pedestal battery 1 use up self electric quantity it
It can just stop powering afterwards, larger to the loss of battery, the Charge Management control unit 11 in the utility model embodiment can be real
When detection pedestal battery 1 remaining capacity, and turn off the 4th controllable switch 10 when detecting that remaining capacity is equal to preset value, make
Pedestal battery 1 stops electric discharge, and preset value here can be by the setting of user flexibility, can be according to demand well to pedestal electricity
The electricity in pond 1 is managed, it may not be necessary to be used up the electricity of pedestal battery 1 every time, be extended the service life of battery.
Specifically, Charge Management control unit 11 can connect with the Clock Signal pin and data pin of pedestal battery 1
It connects, (System Management Bus, system administration are total by the SMBUS that Charge Management control unit 11 is transmitted by above-mentioned pin
Line) signal-obtaining pedestal battery 1 voltameter in register learn the electricity of pedestal battery 1, certainly, Charge Management control
The mode that unit 11 detects 1 electricity of pedestal battery can also be other modes, and the utility model does not limit herein.
Wherein, Charge Management control unit 11 can be various controller, such as various microcontrollers, the utility model is herein
It does not limit.
As a kind of preferred embodiment, the second control terminal of Charge Management control unit 11 respectively with third controllable switch
9 control terminal and the connection of the control terminal of the second controllable switch 7, Charge Management control unit 11 are additionally operable to receiving third control
After signal processed, the second controllable switch 7 of control, 9 and the 4th controllable switch 10 of third controllable switch are closed, in order to notebook electricity
Pond 8 powers to pedestal battery 1.
In order to preferably be illustrated to the utility model embodiment, please refer to Fig.2, Fig. 2 is provided by the utility model
The structure diagram of another two-in-one laptop electric power system, including pedestal battery 1, the first charging chip 2, charger
Interface 3, the second charging chip 4, the first controllable switch 5, diode 6, the second controllable switch 7, Notebook Battery 8, third are controllable
Switch the 9, the 4th controllable switch 10 and Charge Management control unit 11.
In view of in the actual use process, user still needs using pedestal when being used up there are 1 electricity of pedestal battery
On some other functions situation, at this moment if charger just can not be continuing with the function on pedestal, this reality at one's side
With the Charge Management control unit 11 in new embodiment receive third control signal after, can by the second controllable switch 7,
9 and the 4th controllable switch 10 of third controllable switch is closed, and Notebook Battery 8 is made to charge for pedestal battery 1, can be met in this way
The pedestal use demand of user increases the mode that a kind of electricity dominates so that notebook can preferably assist user.
Wherein, third control signal can be the control signal that pre-set program is determined, or Yong Hugen
According to the control signal that demand is sent by external program, the utility model does not limit herein.
As a kind of preferred embodiment, Charge Management control unit 11 is EC (Embedded Controller, insertion
Formula controller).
Specifically, EC have many advantages, such as calculation processing power it is strong, with PC easy communications, at low cost.
Certainly, Charge Management control unit 11 is other than EC, or other kinds of Charge Management control unit 11,
The utility model does not limit herein.
As a kind of preferred embodiment, the first controllable switch 5 for PMOS (P-Metal Oxide Semiconductor,
P-channel metal-oxide-semiconductor) pipe, the first end to drain as the first controllable switch 5 of the first PMOS tube, the first PMOS tube
Second end of the source electrode as the first controllable switch 5, the control terminal of the grid of the first PMOS tube as the first controllable switch 5,
The parasitic body diode 6 of one PMOS tube is used as diode 6；
Second controllable switch 7 is the second PMOS tube, the first end of the source electrode of the second PMOS tube as the second controllable switch 7,
Second end of the drain electrode of second PMOS tube as the second controllable switch 7, the grid of the second PMOS tube is as the second controllable switch 7
Control terminal；
Third controllable switch 9 is third PMOS tube, first end of the drain electrode as third controllable switch 9 of third PMOS tube,
Second end of the source electrode of third PMOS tube as third controllable switch 9, the grid of third PMOS tube is as third controllable switch 9
Control terminal；
4th controllable switch 10 is the 4th PMOS tube, the source electrode of the 4th PMOS tube as the 4th controllable switch 10 first
End, the second end to drain as the 4th controllable switch 10 of the 4th PMOS tube, the grid of the 4th PMOS tube are controllably opened as the 4th
Close 10 control terminal.
Specifically, PMOS tube has many advantages, such as that small, noise is low, thermal stability is good, low in energy consumption.
Certainly, above-mentioned controllable switch can also be the controllable of a such as triode diode 6 in parallel other than PMOS tube
Switch, the utility model do not limit herein.
As a kind of preferred embodiment, the first charging chip 2 and/or the second charging chip 4 are Buck-Boost (liftings
Die mould) chip.
Specifically, Buck-Boost chips have many advantages, such as simple in structure, control flexible.
As a kind of preferred embodiment, the first charging chip 2 and/or the second charging chip 4 are based on NVDC frameworks
Charging chip.
Specifically, the charging chip based on NVDC frameworks have many advantages, such as it is at low cost, it is powerful.
Certainly, other than the charging chip based on NVDC frameworks, the first charging chip 2 and the second charging chip 4 may be used also
Think other kinds of charging chip, the utility model does not limit herein.
The utility model additionally provides a kind of two-in-one laptop, the two-in-one notebook including as above any one
The electric power system of computer.
Above-mentioned electric power system embodiment is please referred to for the introduction of two-in-one laptop provided by the utility model, this
Details are not described herein for utility model.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related part is said referring to method part
It is bright.
It should also be noted that, in the present specification, 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, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only include 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 also there are other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications of these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide range consistent with features of novelty.
Claims (10)
1. a kind of electric power system of two-in-one laptop, which is characterized in that including pedestal battery, the first charging chip, fill
Electrical apparatus interface, the second charging chip, the first controllable switch, diode, the second controllable switch and Notebook Battery, wherein：
Anode of the first end of first controllable switch respectively with the Notebook Battery and the diode is connect, and described
The second end of the one controllable switch output terminal with notebook system, the cathode of the diode and second charging chip respectively
Connection, the control terminal of first controllable switch are connect with the first control terminal of second charging chip, second charging
First end of the input terminal of chip respectively with the output terminal of first charging chip and second controllable switch is connect, described
The input terminal of first charging chip is connect by the charger interface with charger, the second end of second controllable switch with
The pedestal battery connection, the control terminal of second controllable switch are connect with the control terminal of first charging chip；
The diode, for stopping after the notebook system is powered in the pedestal battery, described first controllably opens
It closes before closing, the Notebook Battery is powered by it for the notebook system；First charging chip, for connecing
After receiving first control signal, second controllable switch is controlled to be closed, to export filling for its needs for the pedestal battery
Piezoelectric voltage；Second charging chip, for after second control signal is received, first controllable switch being controlled to be closed,
To export the charging voltage of its needs for the Notebook Battery.
2. system according to claim 1, which is characterized in that the communication ends of first charging chip are also with described second
The communication ends connection of charging chip, first charging chip are additionally operable to：
When the charger is simultaneously the notebook system, the Notebook Battery and the pedestal battery powered, inspection
The output power of the charger is surveyed, if the output power is more than its rated power, to reduce filling for the pedestal battery
Electric current is the first priority, is the second priority to the defeated of the charger using the charging current for reducing the Notebook Battery
Go out power to be adjusted, until the output power of the charger is equal to its rated power.
3. system according to claim 2, which is characterized in that the system further includes：
Third controllable switch, the first end of the third controllable switch is connect with the second end of first controllable switch, described
The second end of third controllable switch is connect with the first end of second controllable switch, the control terminal of the third controllable switch with
The second control terminal connection of second charging chip；
Second charging chip is additionally operable to be converted to the bottom for notebook system power supply by the Notebook Battery
During seat battery is notebook system power supply, after the voltage for detecting the pedestal battery, described first is first controlled
Controllable switch shutdown controls the third controllable switch to be closed again.
4. system according to claim 3, which is characterized in that the system further includes：
4th controllable switch and Charge Management control unit；
The first end of 4th controllable switch is connect with the pedestal battery, the second end of the 4th controllable switch with it is described
The second end connection of second controllable switch, the control terminal of the 4th controllable switch and the first of the Charge Management control unit
Control terminal connects, and the test side of the Charge Management control unit is connect with the pedestal battery；
The Charge Management control unit, for when the electricity for detecting the pedestal battery is reduced to preset value, turning off institute
State the 4th controllable switch.
5. system according to claim 4, which is characterized in that the second control terminal difference of the Charge Management control unit
It is connect with the control terminal of the third controllable switch and the control terminal of second controllable switch, the Charge Management control is single
Member is additionally operable to after third control signal is received, and controls second controllable switch, the third controllable switch and described
4th controllable switch is closed, in order to which the Notebook Battery is to the pedestal battery powered.
6. system according to claim 5, which is characterized in that the Charge Management control unit is embedded controller
EC。
7. system according to claim 5, which is characterized in that first controllable switch is aoxidized for the first P-channel metal
Object semiconductor PMOS tube, the first end to drain as first controllable switch of the first PMOS tube, first PMOS tube
Second end of the source electrode as first controllable switch, the control of the grid of first PMOS tube as first controllable switch
End processed, the parasitic body diode of first PMOS tube is as the diode；
Second controllable switch is the second PMOS tube, the source electrode of second PMOS tube as second controllable switch the
One end, the second end to drain as second controllable switch of second PMOS tube, the grid of second PMOS tube are made
Control terminal for second controllable switch；
The third controllable switch is third PMOS tube, the drain electrode of the third PMOS tube as the third controllable switch the
One end, the second end of the source electrode of the third PMOS tube as the third controllable switch, the grid of the third PMOS tube are made
Control terminal for the third controllable switch；
4th controllable switch is the 4th PMOS tube, the source electrode of the 4th PMOS tube as the 4th controllable switch the
One end, the second end to drain as the 4th controllable switch of the 4th PMOS tube, the grid of the 4th PMOS tube are made
Control terminal for the 4th controllable switch.
8. system according to claim 7, which is characterized in that first charging chip and/or the second charging core
Piece is buck-boost type Buck-Boost chips.
9. according to claim 1-7 any one of them systems, which is characterized in that first charging chip and/or described
Two charging chips are the charging chip based on narrow voltage DC charging NVDC frameworks.
10. a kind of two-in-one laptop, which is characterized in that including such as two-in-one pen of claim 1-9 any one of them
Remember the electric power system of this computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721526944.8U CN207557870U (en) | 2017-11-15 | 2017-11-15 | A kind of electric power system of two-in-one laptop and two-in-one laptop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721526944.8U CN207557870U (en) | 2017-11-15 | 2017-11-15 | A kind of electric power system of two-in-one laptop and two-in-one laptop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207557870U true CN207557870U (en) | 2018-06-29 |
Family
ID=62679093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721526944.8U Active CN207557870U (en) | 2017-11-15 | 2017-11-15 | A kind of electric power system of two-in-one laptop and two-in-one laptop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207557870U (en) |
-
2017
- 2017-11-15 CN CN201721526944.8U patent/CN207557870U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201813422U (en) | Charging chip and mobile terminal capable of automatically adjusting charging mode | |
| TWI427892B (en) | Power supply system for power saving and method thereof | |
| US20170229872A1 (en) | Inverter pre-charge circuit | |
| US9509160B2 (en) | Fast charging terminal | |
| CN101167037B (en) | Systems and methods for disabling power management in a computer system | |
| CN201781310U (en) | Battery charge control circuit | |
| WO2023000732A1 (en) | Charging/discharging circuit and electronic device | |
| CN103915863B (en) | Terminal unit and method of supplying power to thereof | |
| WO2020224467A1 (en) | Charging control circuit and electronic device | |
| CN104124734A (en) | Charging system and charging method | |
| CN109428352A (en) | electronic device and charging method thereof | |
| CN113036880A (en) | Charging device, electronic device and charging method | |
| CN105634143B (en) | Wireless power and power receiving device and its operating method | |
| CN112311038B (en) | Charging and discharging protection circuit, terminal equipment and battery discharging control method | |
| CN111313374A (en) | Battery system under-voltage protection circuit and method applied to electric bicycle BMS | |
| CN104113104A (en) | Charging method and system | |
| CN103633719B (en) | A kind of charging system and charge control method thereof | |
| CN205811601U (en) | Charging control circuit, charging device and mobile terminal | |
| CN103997101B (en) | A kind of charging circuit and a kind of electronic equipment | |
| CN207557870U (en) | A kind of electric power system of two-in-one laptop and two-in-one laptop | |
| CN104124718B (en) | Electric supply installation and method of supplying power to | |
| CN103078395B (en) | Power supply dynamic route managing circuit | |
| CN104115361A (en) | Method and circuitry for battery protection | |
| CN204858641U (en) | Charger data line and charger | |
| CN112703653B (en) | Charging system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |