CN102156527B - Power adapter and portable computer - Google Patents
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- CN102156527B CN102156527B CN201010111948.6A CN201010111948A CN102156527B CN 102156527 B CN102156527 B CN 102156527B CN 201010111948 A CN201010111948 A CN 201010111948A CN 102156527 B CN102156527 B CN 102156527B
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Abstract
The invention provides a power adapter and a portable computer. The power adapter is used for supplying power to the portable computer and comprises a first power supply module, a first parameter acquiring module, a first state judging module, and a first control module, wherein the first power supply module is used for supplying power to the portable computer; the first parameter acquiring module is used for acquiring a mode judgment parameter; the first state judging module is used for judging the current state of the portable computer according to the mode judgment parameter; the first control module is used for controlling the output voltage of the first power supply module according to the current state of the portable computer and ensuring that the output voltage which is output when the current state of the portable computer is in a first state is more than the output voltage which is output when the current state of the portable computer is in a second state; and the power consumption when the portable computer is in the first state is more than the power consumption when the portable computer is in the second state. By using the power adapter, the energy consumption is reduced.
Description
Technical field
The present invention relates to the power supply technique of electronic equipment, particularly a kind of power supply adaptor and portable computer.
Background technology
In recent years along with energy conservation standards such as " Energy Star " constantly occurs and upgrading, and the global Energy Star plan that has seven countries and regions to participate in Environmental Protection Agencies' promotion, be respectively the U.S., Canada, Japan, TaiWan, China, Australia, New Zealand, European Union.
And electronic equipment is energy-conservation by global consumer's cognition, accept and as the necessary condition of selecting product.
Current, computer state comprises several states of S0, S1, S2, S3, S4 and S5, is described as follows.
S0, common duty, all devices standard-sized sheet.
S1, expression system is in low power supply supply status, and CPU closes, and other equipment are normally worked, and can wake computing machine up by mouse, keyboard etc.;
S2, power supply armed state, is that with the difference of S1 bus clock is also closed.
S3, exists all data preservations in internal memory motionless current operating system, then enters " false shutdown " state, now keeps data except internal memory needs power supply, and other unit is all stopped power supply.
S4, depositing in hard disk of the data integrity in operating system memory, all parts quit work.
S5, off-mode, all devices Close All.
The time that S1 wakes computing machine up to S5 increases successively.
Along with improving constantly that all kinds of energy conservation standards require, current most portable computer and its external power source all will be difficult to meet standard of new generation under existing technology, and wherein portable computer is being powered by external power supply, and the larger problem of power consumption under low load condition (under S3, S4, S5 pattern) is the most obvious.
Summary of the invention
The object of this invention is to provide a kind of power supply adaptor and portable computer, reduce energy power consumption.
To achieve these goals, the embodiment of the present invention provides a kind of power supply adaptor, is used to portable computer to power, and described power supply adaptor comprises:
The first supply module, is used to described portable computer power supply;
The first parameter acquisition module, for obtaining a mode decision parameter;
The first condition judgment module, for judging the current state of described portable computer according to described mode decision parameter;
The first control module, be used for according to the current state of described portable computer, control the output voltage of described the first supply module, the voltage that described the first supply module is exported in the time that the current state of described portable computer is the first state is greater than the voltage that described the first supply module is exported in the time that the current state of described portable computer is the second state;
The power consumption of described portable computer in the time of described the first state is greater than the power consumption of described portable computer in the time of described the second state.
Above-mentioned power supply adaptor, wherein, also comprises:
The second parameter acquisition module, for mutual with described portable computer, obtain a battery status and judges parameter;
The second control module, in the time judging that according to described battery status parameter is judged portable computer and is connected with the rechargeable battery in charged state, closes described the first control module, otherwise opens described the first control module.
Above-mentioned power supply adaptor, wherein, the state parameter that described mode decision parameter is portable computer.
Above-mentioned power supply adaptor, wherein, the current power consumption that described mode decision parameter is portable computer, described the first condition judgment module specifically comprises:
First module, for the magnitude relationship of more described current power consumption and the first thresholding and the second thresholding;
Second unit, in the time that described current power consumption is more than or equal to the first thresholding, the current state that judges described portable computer is the first state;
Unit the 3rd, in the time that described current power consumption is less than or equal to the second thresholding, the current state that judges described portable computer is the second state;
Described the first thresholding is the minimum power consumption of described portable computer under the first state;
Described the second thresholding be the maximum power dissipation of described portable computer under the second state or maximum power dissipation and a fault-tolerant thresholding and.
Above-mentioned power supply adaptor, wherein, current power consumption and duration that described mode decision parameter is portable computer, described the first condition judgment module specifically comprises:
First module, for the magnitude relationship of more described current power consumption and the first thresholding and the second thresholding;
Unit the 4th, in the time that described current power consumption is more than or equal to the first thresholding, and the duration exceed the very first time when thresholding, the current state that judges described portable computer is the first state;
Unit the 5th, in the time that described current power consumption is less than or equal to the second thresholding, and duration while exceeding the second time threshold, the current state that judges described portable computer is the second state;
Described the first thresholding is the minimum power consumption of described portable computer under the first state;
Described the second thresholding be the maximum power dissipation of described portable computer under the second state or maximum power dissipation and a fault-tolerant thresholding and.
Above-mentioned power supply adaptor, wherein, described mode decision parameter also comprises the state parameter of portable computer, described the first condition judgment module also comprises:
Unit the 6th, for being less than the first thresholding in described current power consumption, and while being greater than the second thresholding, judges the current state of described portable computer according to described state parameter.
To achieve these goals, the embodiment of the present invention also provides a kind of portable computer, comprising:
The 3rd parameter acquisition module, for obtaining a mode decision parameter;
The second condition judgment module, for judging the current state of described portable computer according to described mode decision parameter;
The 3rd control module, be used for according to the current state of described portable computer, to power supply adaptor sending controling instruction, to control the output voltage of power supply adaptor, the voltage that described power supply adaptor is exported in the time that the current state of described portable computer is the first state is greater than the voltage that described power supply adaptor is exported in the time that the current state of described portable computer is the second state;
The power consumption of described portable computer in the time of described the first state is greater than the power consumption of described portable computer in the time of described the second state.
Above-mentioned portable computer, wherein, also comprises:
The 4th parameter acquisition module, judges parameter for obtaining a battery status;
The 4th control module, in the time judging that according to described battery status parameter is judged portable computer and is connected with the rechargeable battery in charged state, closes described the 4th control module, otherwise opens described the 4th control module.
Above-mentioned portable computer, wherein, the state parameter that described mode decision parameter is portable computer.
Above-mentioned portable computer, wherein, the current power consumption that described mode decision parameter is portable computer, described the second condition judgment module specifically comprises:
First module, for the unit of the magnitude relationship of more described current power consumption and the first thresholding and the second thresholding;
Second unit, in the time that described current power consumption is more than or equal to the first thresholding, the current state that judges described portable computer is the first state;
Unit the 3rd, in the time that described current power consumption is less than or equal to the second thresholding, the current state that judges described portable computer is the second state;
Described the first thresholding is the minimum power consumption of described portable computer under the first state;
Described the second thresholding be the maximum power dissipation of described portable computer under the second state or maximum power dissipation and a fault-tolerant thresholding and.
Above-mentioned portable computer, wherein, current power consumption and duration that described mode decision parameter is portable computer, described the second condition judgment module specifically comprises:
First module, for the unit of the magnitude relationship of more described current power consumption and the first thresholding and the second thresholding;
Unit the 4th, in the time that described current power consumption is more than or equal to the first thresholding, and the duration exceed the very first time when thresholding, the current state that judges described portable computer is the first state;
Unit the 5th, in the time that described current power consumption is less than or equal to the second thresholding, and duration while exceeding the second time threshold, the current state that judges described portable computer is the second state;
Described the first thresholding is the minimum power consumption of described portable computer under the first state;
Described the second thresholding be the maximum power dissipation of described portable computer under the second state or maximum power dissipation and a fault-tolerant thresholding and.
Above-mentioned portable computer, wherein, described mode decision parameter also comprises the state parameter of portable computer, described the second condition judgment module also comprises:
Unit the 6th, for being less than the first thresholding in described current power consumption, and while being greater than the second thresholding, judges the current state of described portable computer according to described state parameter.
To achieve these goals, the embodiment of the present invention also provides a kind of power supply adaptor, is used to portable computer to power, and described power supply adaptor comprises:
The first supply module, is used to described portable computer power supply;
The 5th control module, for receiving described portable computer according to the steering order of current state transmission, described the first supply module is controlled, and the voltage that described the first supply module is exported in the time that the current state of described portable computer is the first state is greater than the voltage that described the first supply module is exported in the time that the current state of described portable computer is the second state;
The power consumption of described portable computer in the time of described the first state is greater than the power consumption of described portable computer in the time of described the second state.
To achieve these goals, the embodiment of the present invention also provides a kind of portable computer, comprising:
The second supply module, is connected with mainboard, for obtain the backward main board power supply of electric power from adapter;
The 5th parameter acquisition module, for obtaining a mode decision parameter;
Third state judge module, for judging the current state of described portable computer according to described mode decision parameter;
The 4th control module, be used for according to the current state of described portable computer, control the output voltage of described the second supply module, the voltage that described the first supply module is exported in the time that the current state of described portable computer is the first state is greater than the voltage that described the first supply module is exported in the time that the current state of described portable computer is the second state;
The power consumption of described portable computer in the time of described the first state is greater than the power consumption of described portable computer in the time of described the second state.
Above-mentioned portable computer, wherein, also comprises:
The second parameter acquisition module, judges parameter for obtaining a battery status;
The 5th control module, in the time judging that according to described battery status parameter is judged portable computer and is connected with the rechargeable battery in charged state, closes described the 4th control module, otherwise opens described the 4th control module.
The embodiment of the present invention has following beneficial effect:
In specific embodiments of the invention, voltage according to the current residing power supply status of portable computer and energy requirement control to mainboard supply, at described portable computer during in less the first state of power consumption, voltage to mainboard supply is less, and at described portable computer during in less the second state of power consumption, voltage to mainboard supply is larger, so with respect to the situation of the permanent High voltage output of existing power supply adaptor, reduced energy power consumption.
Brief description of the drawings
Fig. 1 is the structural representation of the power supply adaptor of the embodiment of the present invention;
Fig. 2 is the schematic flow sheet that the 4th kind of the embodiment of the present invention judges state.
Embodiment
In specific embodiments of the invention, according to the output voltage of the current residing power supply status/energy requirement control power supply adaptor of PC, to reduce energy resource consumption.
The power supply adaptor of the embodiment of the present invention, is used to portable computer to power, and as shown in Figure 1, described power supply adaptor comprises:
The first supply module;
The first parameter acquisition module, for obtaining a mode decision parameter;
The first condition judgment module, for judging the current state of described portable computer according to described mode decision parameter;
The first control module, be used for according to the current state of described portable computer, control the output voltage of described the first supply module, the voltage that described the first supply module is exported in the time that the current state of described portable computer is the first state is greater than the voltage that described the first supply module is exported in the time that the current state of described portable computer is the second state.
The power consumption of described portable computer in the time of described the first state is greater than the power consumption of described portable computer in the time of described the second state.
In specific embodiments of the invention, this first state and the second state can be single states, as one in S0, S1, S2, S3, S4 and S5, can be also to comprise multiple states, and as the first state comprises S0, and the second state comprises S3, S4 and S5.
If when the first state or the second state comprise multiple state, should ensure following condition:
The power consumption of described portable computer under any one first state is greater than the power consumption of described portable computer under any one second state.In specific embodiments of the invention, this first state and the second state can be following various combinations:
The first state comprises S0 state, and the second state comprises S1 and S2 state; Or
The first state comprises S0 state, and the second state comprises S3, S4 and S5 state; Or
The first state comprises S0, S1 and S2 state, and the second state comprises S4 and S5 state; Or
The first state comprises S0 and S2 state, and the second state comprises S3, S4 and S5 state.
Certainly, the first above-mentioned state and the division of the second state can also otherwise be divided, and do not enumerate at this.
And above-mentionedly illustrate, the state of described portable computer comprises the first state and the second state, certainly can also comprise the third state, as the first state comprises S0 state, the second state comprises S1 and S2 state, and the third state comprises S4 and S5 state.
Division for above-mentioned various states is not described in detail.
Output voltage for the first supply module under above-mentioned various states can be determined according to various information such as the model of portable computer, mainboard type, CPU models, as the output voltage of the first supply module under S0 state should be not less than the minimum voltage that ensures that portable computer can normally be worked, and under S3, S4 and S5 state, the output voltage of the first supply module should be not less than the minimum voltage that ensures that portable computer can be waken up, and these data can be obtained by common experiment or product data.
As at portable computer during in S3 state, from can waking the voltage of portable computer up, each output voltage 0.1V that reduces the first supply module, then judge whether to wake portable computer up, if can, continuation reduces the output voltage 0.1V of the first supply module, repeats said process, until can not wake portable computer up, now the output voltage of second from the bottom time is the minimum voltage under S3 state.
The step-length that certainly, can change by amendment voltage obtains more accurate data.
Certainly, in the product specification of some product, may just comprise above-mentioned parameter, now directly bring and use.
Certainly, in specific embodiments of the invention, consider that portable computer major part is all used rechargeable battery, and rechargeable battery is in the time of charging, needing voltage that power supply adaptor provides is the voltage of portable computer while working in S0 pattern, in this case, even if portable computer works in low power consumpting state (as the state such as S4, S5), also should not reduce the output voltage of the first supply module, so under the circumstances, as shown in Figure 1, in the power supply adaptor of the embodiment of the present invention, also comprise:
The second parameter acquisition module, for mutual with described portable computer, obtain a battery status and judges parameter;
The second control module, in the time judging that according to described battery status parameter is judged portable computer and is connected with the rechargeable battery in charged state, closes described the first control module, otherwise opens described the first control module.
In specific embodiments of the invention, obtaining mode judges parameter, and judges that according to mode decision parameter the current state of described portable computer can utilize various ways to realize, and is described in detail as follows respectively.
< implementation one >
In implementation one, the state parameter that this mode decision parameter is portable computer.
Comprise S0 and S2 state with the first state below, the second state comprises S3, S4 and S5 state, and this control before portable computer to work in S0 state be that example is described in detail the power supply adaptor course of work.
Power supply adaptor is connected with portable computer, obtains the state parameter of portable computer;
Judge that according to this state parameter the current state of this portable computer belongs to the first state or the second state, if the second state (as S4 state), reduce the output voltage of the first supply module to previous preset value, otherwise maintain the output voltage of the first supply module.
In above-mentioned implementation, when power supply adaptor and portable computer need to carry out the transmission of state parameter, in implementation one, by carrying out the transmission of state parameter at power supply adaptor and the corresponding PIN for data transmission arranging of portable computer end increase.
Concrete which kind of communication mode that adopts does not limit in specific embodiments of the invention, any transmission that can communicate mode between external equipment and portable computer and may be used to state parameter, and no further details to be given herein.
< implementation two >
While directly obtaining state parameter from portable computer, consider that the electromagnetic interference (EMI) of power supply adaptor itself is larger, data may be made mistakes in transmission receiving course, in implementation two, and the current power consumption that this mode decision parameter is portable computer.
In conjunction with the description in background technology can, in the S0-S5 state of portable computer, under every kind of state, the equipment difference of closing, as S0, equipment is all opened, S1, CPU closes, S3, only have internal memory open, S4 and S5, equipment Close All.
Due to the equipment difference of opening, maintain the needed energy consumption of these opening of device also inevitable different, therefore, in implementation two, directly obtain its current power consumption from portable computer, and judge its residing state according to its current power consumption, be elaborated below.
Comprise S0 and S2 state with the first state below, the second state comprises S3, S4 and S5 state, and this control before portable computer to work in S0 state be that example is described in detail the course of work of power supply adaptor.
Set in advance two following thresholdings:
A1, under S0 and S2 state, the minimum value of the power consumption of portable computer;
A2, S3, S4 and S5 state, the maximal value of the power consumption of portable computer.
Wherein A1 is greater than A2.
Then obtain current power consumption A from portable computer, and the magnitude relationship of judgement and A1 and A2, under normal circumstances, no matter portable computer, in which kind of state, now comprises following several relations:
A is more than or equal to A1; Or
A is less than or equal to A2.
Because A1 is under S0 and S2 state, the minimum value of the power consumption of portable computer, if A is more than or equal to A1, shows that portable computer is current for S0 or S2 state;
Because A2 is under S3, S4 and S5 state, the maximal value of the power consumption of portable computer, if A is less than or equal to A2, shows that portable computer is current for S3, S4 or S5 state.
Certainly,, after considering that portable computer uses a period of time, due to device aging, power consumption can increase, and therefore, can also adopt following judgment mode.
The magnitude relationship of judgement and A1 and A2+ Δ, under normal circumstances, no matter portable computer, in which kind of state, now comprises following several relations:
A is more than or equal to A1; Or
A is less than or equal to A2+ Δ (fault-tolerant thresholding).
Because A1 is under S0 and S2 state, the minimum value of the power consumption of portable computer, if A is more than or equal to A1, shows that portable computer is current for S0 or S2 state;
Because A2 is under S3, S4 and S5 state, the maximal value of the power consumption of portable computer, even if consider the factors such as aging, measuring error, if A is less than or equal to A2+ Δ, show portable computer current be S3, S4 or S5 state.
In specific embodiments of the invention, can obtain in the following way the current power consumption of portable computer, be described as follows.
At the output terminal of the power supply adaptor resistance of connecting, and by detecting electric current and the current output voltage of power supply adaptor of resistance, the two multiplies each other and obtains the current power consumption of portable computer.
Certainly, because the direct-flow input end of portable computer is all in series with resistance, can carry out the detection of electric current and voltage by this resistance, and utilize the electric current that detects and voltage to calculate the current power consumption of portable computer, then by data channel, pass to power supply adaptor by portable computer.
< implementation three >
In implementation one, directly obtain state parameter from portable computer, but the electromagnetic interference (EMI) of considering power supply adaptor itself is larger, data may be made mistakes in transmission receiving course, in implementation two, judge with the current power consumption of portable computer, but it does not consider the power consumption saltus step problem that portable computer produces due to extraneous factor, therefore, in implementation three, current power consumption and duration that this mode decision parameter is portable computer.
In conjunction with the description in background technology can, in the S0-S5 state of portable computer, under every kind of state, the equipment difference of closing, as S0, equipment is all opened, S1, CPU closes, S3, only have internal memory open, S4 and S5, equipment Close All.
Due to the equipment difference of opening, maintain the needed energy consumption of these opening of device also inevitable different, therefore, in implementation three, directly obtain its current power consumption from portable computer, and judge its residing state according to its current power consumption and duration, be elaborated below.
Comprise S0 and S2 state with the first state below, the second state comprises S3, S4 and S5 state, and this control before portable computer to work in S0 state be that example is described in detail the course of work of power supply adaptor.
Set in advance two following thresholdings:
A1, under S0 and S2 state, the minimum value of the power consumption of portable computer;
A2, S3, S4 and S5 state, the maximal value of the power consumption of portable computer.
Wherein A1 is greater than A2.
Then obtain current power consumption A from portable computer, and the magnitude relationship of judgement and A1 and A2, under normal circumstances, no matter portable computer, in which kind of state, now comprises following several relations:
A is more than or equal to A1, and the duration exceedes T1; Or
A is less than or equal to A2, and the duration exceedes T2.
For implementation two, add the factor of duration, the power consumption saltus step that can avoid portable computer to produce due to extraneous factor causes the problem of error in judgement.
Because A1 is under S0 and S2 state, the minimum value of the power consumption of portable computer, if A is more than or equal to A1, and continues for some time, and shows that portable computer is current for S0 or S2 state;
Because A2 is under S3, S4 and S5 state, the maximal value of portable computer power consumption, if A is less than or equal to A2, and continues for some time, and shows that portable computer is current for S3, S4 or S5 state.
Certainly,, after considering that portable computer uses a period of time, due to device aging, power consumption can increase, and therefore, can also adopt following judgment mode.
The magnitude relationship of judgement and A1 and A2+ Δ, under normal circumstances, no matter portable computer, in which kind of state, now comprises following several relations:
A is more than or equal to A1, and the duration exceedes T1; Or
A is less than or equal to A2+ Δ, and the duration exceedes T2.
Because A1 is under S0 and S2 state, the minimum value of the power consumption of portable computer, if A is more than or equal to A1, and continues for some time, and shows that portable computer is current for S0 or S2 state;
Because A2 is under S3, S4 and S5 state, the maximal value of the power consumption of portable computer, even if consider the factors such as aging, measuring error, if A is less than or equal to A2+ Δ, and continues for some time, show portable computer current be S3, S4 or S5 state.
Certainly, this T1 and T2 can arrange identical time value, also can be different.
< implementation four >
In implementation one, directly obtain state parameter from portable computer, but the electromagnetic interference (EMI) of considering power supply adaptor itself is larger, data may be made mistakes in transmission receiving course, in implementation two, current power consumption with portable computer judges, but it does not consider the problem such as power consumption saltus step and measuring error that portable computer produces due to extraneous factor.Therefore, in implementation four, the current power consumption that this mode decision parameter is portable computer and the state parameter of portable computer.
In conjunction with the description in background technology can, in the S0-S5 state of portable computer, under every kind of state, the equipment difference of closing, as S0, equipment is all opened, S1, CPU closes, S3, only have internal memory open, S4 and S5, equipment Close All.
Due to the equipment difference of opening, maintain the needed energy consumption of these opening of device also inevitable different, therefore, directly obtain its current power consumption from portable computer, and judge its residing state according to the state parameter of its current power consumption duration and portable computer, be elaborated below.
Comprise S0 and S2 state with the first state below, the second state comprises S3, S4 and S5 state, and this control before portable computer to work in S0 state be that example is described in detail the course of work of power supply adaptor.
Set in advance two following thresholdings:
A1, under S0 and S2 state, the minimum value of the power consumption of portable computer;
A2, S3, S4 and S5 state, the maximal value of the power consumption of portable computer.
Wherein A1 is greater than A2.
Then obtain current power consumption A from portable computer, and the magnitude relationship of judgement and A1 and A2, if consider the factor such as device aging, measuring error, now comprise following several relations:
A is more than or equal to A1; Or
A is less than or equal to A2.
A is greater than A2, but is less than A1.
Because A1 is under S0 and S2 state, the minimum value of the power consumption of portable computer, if A is more than or equal to A1, shows that portable computer is current for S0 or S2 state;
Because A2 is under S3, S4 and S5 state, the maximal value of the power consumption of portable computer, if A is less than or equal to A2, shows that portable computer is current for S3, S4 or S5 state.
If A, between A1 and A2, now can further directly judge according to the state parameter of portable computer.
Based on same reason, in implementation four, equally also can add duration factor, the error in judgement problem that the power consumption saltus step of avoiding portable computer to produce due to extraneous factor causes.
In implementation four, after joining day factor, its treatment scheme as shown in Figure 2.
In the above-described embodiment, to be arranged at taking the first parameter acquisition module, the first condition judgment module and the first control module the explanation that power supply adaptor end carries out as example, but it can be arranged at portable computer end equally, adapter is not made to any change, in this case, the portable computer of the embodiment of the present invention, comprising:
Mainboard;
The second supply module, is connected with mainboard, for obtain the backward main board power supply of electric power from adapter;
The 5th parameter acquisition module, for obtaining a mode decision parameter;
Third state judge module, for judging the current state of described portable computer according to described mode decision parameter;
The 4th control module, be used for according to the current state of described portable computer, control the output voltage of described the second supply module, the voltage that described the first supply module is exported in the time that the current state of described portable computer is the first state is greater than the voltage that described the first supply module is exported in the time that the current state of described portable computer is the second state;
The power consumption of described portable computer in the time of described the first state is greater than the power consumption of described portable computer in the time of described the second state.
And above-mentioned portable computer can also comprise:
The second parameter acquisition module, judges parameter for obtaining a battery status;
The 5th control module, in the time judging that according to described battery status parameter is judged portable computer and is connected with the rechargeable battery in charged state, closes described the 4th control module, otherwise opens described the 4th control module.
In the above embodiments, realize and being illustrated separately respectively with adapter end and computer end, but the embodiment of the present invention also provides a kind of adapter end and computer end to coordinate the scheme realizing, under this implementation, the portable computer of the embodiment of the present invention comprises:
The 3rd parameter acquisition module, for obtaining a mode decision parameter;
The second condition judgment module, for judging the current state of described portable computer according to described mode decision parameter;
The 3rd control module, be used for according to the current state of described portable computer, to power supply adaptor sending controling instruction, to control the output voltage of power supply adaptor, the voltage that described power supply adaptor is exported in the time that the current state of described portable computer is the first state is greater than the voltage that described power supply adaptor is exported in the time that the current state of described portable computer is the second state.
The power consumption of described portable computer in the time of described the first state is greater than the power consumption of described portable computer in the time of described the second state.
Realize at portable computer end, equally also need to consider charged state, therefore need to arrange as lower module:
The 4th parameter acquisition module, judges parameter for obtaining a battery status;
The 4th control module, in the time judging that according to described battery status parameter is judged portable computer and is connected with the rechargeable battery in charged state, closes described the 3rd control module, otherwise opens described the 3rd control module.
Be arranged at the computer end difference unique from being arranged at power supply adaptor end and be the different of data transmission between computer end and power supply adaptor end, while being arranged at computer end, what transmit is a control signal, carried out the adjusting of output voltage according to control signal by power supply adaptor end, and while being arranged at power supply adaptor end, the mode decision parameter of transmitting between the two, is carried out the judgement of state by power supply adaptor end, judge identically but how to carry out state, be no longer repeated in this description at this.
If bring in and process by computer, when current power consumption that mode decision parameter is portable computer, because the direct-flow input end of portable computer is all in series with resistance, can carry out the detection of electric current and voltage by this resistance, and utilize the electric current that detects and voltage to calculate the current power consumption of portable computer.
The method of the embodiment of the present invention is no matter carry out at power supply adaptor end, or carry out at portable computer end, all need the output voltage of the first supply module that changes power supply adaptor, in power supply adaptor, be all to adopt FEEDBACK CONTROL, regulate according to the difference between output voltage and reference voltage, make output voltage approach as far as possible reference voltage, therefore, in embodiments of the present invention, by regulating the reference voltage of power supply adaptor can realize the change of output voltage.
The another kind of power supply adaptor of the embodiment of the present invention, is used to portable computer to power, and described power supply adaptor comprises:
The first supply module, is used to described portable computer power supply;
The 5th control module, for receiving described portable computer according to the steering order of current state transmission, described the first supply module is controlled, and the voltage that described the first supply module is exported in the time that the current state of described portable computer is the first state is greater than the voltage that described the first supply module is exported in the time that the current state of described portable computer is the second state.
The power consumption of described portable computer in the time of described the first state is greater than the power consumption of described portable computer in the time of described the second state.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (11)
1. a power supply adaptor, is used to portable computer to power, and it is characterized in that, described power supply adaptor comprises:
The first supply module, is used to described portable computer power supply;
The first parameter acquisition module, for obtaining a mode decision parameter;
The first condition judgment module, for judging the current state of described portable computer according to described mode decision parameter;
The first control module, be used for according to the current state of described portable computer, control the output voltage of described the first supply module, the voltage that described the first supply module is exported in the time that the current state of described portable computer is the first state is greater than the voltage that described the first supply module is exported in the time that the current state of described portable computer is the second state;
The power consumption of described portable computer in the time of described the first state is greater than the power consumption of described portable computer in the time of described the second state;
Described power supply adaptor also comprises:
The second parameter acquisition module, for mutual with described portable computer, obtain a battery status and judges parameter;
The second control module, in the time judging that according to described battery status parameter is judged portable computer and is connected with the rechargeable battery in charged state, closes described the first control module, otherwise opens described the first control module.
2. power supply adaptor according to claim 1, is characterized in that, the state parameter that described mode decision parameter is portable computer.
3. power supply adaptor according to claim 1, is characterized in that, the current power consumption that described mode decision parameter is portable computer, and described the first condition judgment module specifically comprises:
First module, for the magnitude relationship of more described current power consumption and the first thresholding and the second thresholding;
Second unit, in the time that described current power consumption is more than or equal to the first thresholding, the current state that judges described portable computer is the first state;
Unit the 3rd, in the time that described current power consumption is less than or equal to the second thresholding, the current state that judges described portable computer is the second state;
Described the first thresholding is the minimum power consumption of described portable computer under the first state;
Described the second thresholding be the maximum power dissipation of described portable computer under the second state or maximum power dissipation and a fault-tolerant thresholding and.
4. power supply adaptor according to claim 1, is characterized in that, current power consumption and duration that described mode decision parameter is portable computer, described the first condition judgment module specifically comprises:
First module, for the magnitude relationship of more described current power consumption and the first thresholding and the second thresholding;
Unit the 4th, in the time that described current power consumption is more than or equal to the first thresholding, and the duration exceed the very first time when thresholding, the current state that judges described portable computer is the first state;
Unit the 5th, in the time that described current power consumption is less than or equal to the second thresholding, and duration while exceeding the second time threshold, the current state that judges described portable computer is the second state;
Described the first thresholding is the minimum power consumption of described portable computer under the first state;
Described the second thresholding be the maximum power dissipation of described portable computer under the second state or maximum power dissipation and a fault-tolerant thresholding and.
5. according to the power supply adaptor described in claim 3 or 4, it is characterized in that, described mode decision parameter also comprises the state parameter of portable computer, and described the first condition judgment module also comprises:
Unit the 6th, for being less than the first thresholding in described current power consumption, and while being greater than the second thresholding, judges the current state of described portable computer according to described state parameter.
6. a portable computer, is characterized in that, described portable computer comprises:
The 3rd parameter acquisition module, for obtaining a mode decision parameter;
The second condition judgment module, for judging the current state of described portable computer according to described mode decision parameter;
The 3rd control module, be used for according to the current state of described portable computer, to power supply adaptor sending controling instruction, to control the output voltage of power supply adaptor, the voltage that described power supply adaptor is exported in the time that the current state of described portable computer is the first state is greater than the voltage that described power supply adaptor is exported in the time that the current state of described portable computer is the second state;
The power consumption of described portable computer in the time of described the first state is greater than the power consumption of described portable computer in the time of described the second state;
Described portable computer also comprises:
The 4th parameter acquisition module, judges parameter for obtaining a battery status;
The 4th control module, in the time judging that according to described battery status parameter is judged portable computer and is connected with the rechargeable battery in charged state, closes described the 4th control module, otherwise opens described the 4th control module.
7. portable computer according to claim 6, is characterized in that, the state parameter that described mode decision parameter is portable computer.
8. portable computer according to claim 6, is characterized in that, the current power consumption that described mode decision parameter is portable computer, and described the second condition judgment module specifically comprises:
First module, for the unit of the magnitude relationship of more described current power consumption and the first thresholding and the second thresholding;
Second unit, in the time that described current power consumption is more than or equal to the first thresholding, the current state that judges described portable computer is the first state;
Unit the 3rd, in the time that described current power consumption is less than or equal to the second thresholding, the current state that judges described portable computer is the second state;
Described the first thresholding is the minimum power consumption of described portable computer under the first state;
Described the second thresholding be the maximum power dissipation of described portable computer under the second state or maximum power dissipation and a fault-tolerant thresholding and.
9. portable computer according to claim 6, is characterized in that, current power consumption and duration that described mode decision parameter is portable computer, described the second condition judgment module specifically comprises:
First module, for the unit of the magnitude relationship of more described current power consumption and the first thresholding and the second thresholding;
Unit the 4th, in the time that described current power consumption is more than or equal to the first thresholding, and the duration exceed the very first time when thresholding, the current state that judges described portable computer is the first state;
Unit the 5th, in the time that described current power consumption is less than or equal to the second thresholding, and duration while exceeding the second time threshold, the current state that judges described portable computer is the second state;
Described the first thresholding is the minimum power consumption of described portable computer under the first state;
Described the second thresholding be the maximum power dissipation of described portable computer under the second state or maximum power dissipation and a fault-tolerant thresholding and.
10. portable computer according to claim 8 or claim 9, is characterized in that, described mode decision parameter also comprises the state parameter of portable computer, and described the second condition judgment module also comprises:
Unit the 6th, for being less than the first thresholding in described current power consumption, and while being greater than the second thresholding, judges the current state of described portable computer according to described state parameter.
11. 1 kinds of portable computers, comprise mainboard, it is characterized in that, described portable computer also comprises:
The second supply module, is connected with mainboard, for obtain the backward main board power supply of electric power from adapter;
The 5th parameter acquisition module, for obtaining a mode decision parameter;
Third state judge module, for judging the current state of described portable computer according to described mode decision parameter;
The 4th control module, be used for according to the current state of described portable computer, control the output voltage of described the second supply module, the voltage that the first supply module is exported in the time that the current state of described portable computer is the first state is greater than the voltage that described the first supply module is exported in the time that the current state of described portable computer is the second state;
The power consumption of described portable computer in the time of described the first state is greater than the power consumption of described portable computer in the time of described the second state;
Described portable computer, also comprises:
The second parameter acquisition module, judges parameter for obtaining a battery status;
The 5th control module, in the time judging that according to described battery status parameter is judged portable computer and is connected with the rechargeable battery in charged state, closes described the 4th control module, otherwise opens described the 4th control module.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010111948.6A CN102156527B (en) | 2010-02-11 | 2010-02-11 | Power adapter and portable computer |
| PCT/CN2011/070757 WO2011098000A1 (en) | 2010-02-11 | 2011-01-28 | Power adapter and portable computer |
| US13/578,649 US9236766B2 (en) | 2010-02-11 | 2011-01-28 | Control of a power adapter with energy storage elements based on output voltage thresholds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010111948.6A CN102156527B (en) | 2010-02-11 | 2010-02-11 | Power adapter and portable computer |
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| Publication Number | Publication Date |
|---|---|
| CN102156527A CN102156527A (en) | 2011-08-17 |
| CN102156527B true CN102156527B (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010111948.6A Active CN102156527B (en) | 2010-02-11 | 2010-02-11 | Power adapter and portable computer |
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| CN (1) | CN102156527B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133543A (en) * | 2013-05-02 | 2014-11-05 | 华硕电脑股份有限公司 | Portable electronic device |
| CN104333066B (en) * | 2014-10-31 | 2017-08-04 | 上海斐讯数据通信技术有限公司 | A kind of charging system |
| CN108196481B (en) * | 2018-01-02 | 2021-08-17 | 联想(北京)有限公司 | Power supply adjusting method and electronic equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083585C (en) * | 1994-09-28 | 2002-04-24 | 三星电子株式会社 | Power-supply controller of computer |
| CN101299164A (en) * | 2008-06-23 | 2008-11-05 | 李幸 | Novel intelligent high-efficiency portable computer electric power supply system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100691271B1 (en) * | 2005-08-12 | 2007-03-12 | 삼성전기주식회사 | A constant voltage circuit for power adaptor |
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2010
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083585C (en) * | 1994-09-28 | 2002-04-24 | 三星电子株式会社 | Power-supply controller of computer |
| CN101299164A (en) * | 2008-06-23 | 2008-11-05 | 李幸 | Novel intelligent high-efficiency portable computer electric power supply system |
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| CN102156527A (en) | 2011-08-17 |
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