CN102938568B - To method and apparatus and the electronic equipment of power electronic equipment - Google Patents
To method and apparatus and the electronic equipment of power electronic equipment Download PDFInfo
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- CN102938568B CN102938568B CN201110233427.2A CN201110233427A CN102938568B CN 102938568 B CN102938568 B CN 102938568B CN 201110233427 A CN201110233427 A CN 201110233427A CN 102938568 B CN102938568 B CN 102938568B
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Abstract
Provide a kind of method of supplying power to, electric supply installation and electronic equipment.Described electronic equipment comprises the first circuit part and second circuit part.Described method of supplying power to comprises: utilize the first battery to be powered to the first circuit part by the first path, and utilizes the second battery by alternate path to second circuit energize portions; Detect the electric parameter of the first battery; Judge the electric parameter whether first predetermined condition of the first battery, produce the first judged result; And when the first judged result represents the electric parameter first predetermined condition of the first battery, cut off the first battery by the power supply of the first path to the first circuit part, and utilize the second battery to be powered to the first circuit part by third path.The power supplying efficiency utilizing the first battery to be powered to the first circuit part by third path with the second battery to the power supplying efficiency Billy that the first circuit part is powered by the first path is high.
Description
Technical field
The present invention relates to the power supply of electronic equipment, and relate more specifically to a kind of method of supplying power to power electronic equipment, the electric supply installation to power electronic equipment and electronic equipment.
Background technology
At present, the battery structure great majority of PAD are 1S3P (1 string 3 structure also) or 2S1P (2 strings 1 structure also).For LEPAD, the structure of battery is 2S1P; And for IPAD2, the structure of battery is 1S3P.
When adopting 2S1P battery structure, for the display screen in PAD, the backlight conversion efficiency of 2S1P is higher than the backlight conversion efficiency of 1S3P, and therefore in backlight conversion efficiency, 2S1P is advantageously.But, because the system power supply voltage in PAD is generally between 3V-4.2V, therefore the battery structure of 2S1P is doomed to need to increase one-level reduction voltage circuit and is given to circuit system and powers, this grade of circuit like this increased just also exists loss always, thus for circuit system, the power supplying efficiency of 2S1P is lower than the power supplying efficiency of 1S3P.
When adopting 1S3P battery structure, 1S3P can directly be given to circuit system and power, and not needing increases reduction voltage circuit, saves the loss of this part circuit, and therefore on the power supplying efficiency of circuit system, 1S3P is advantageously.But the input voltage of the backlight circuit of PAD display screen is lower than the input voltage of the backlight circuit in 2S1P battery structure situation, therefore the backlight conversion efficiency of 1S3P is lower than the backlight conversion efficiency of 2S1P.
Therefore, need a kind ofly can make full use of the energy content of battery and power electronic equipment method and the electric supply installation of backlight conversion efficiency and system power supply efficiency can be optimized simultaneously.
Summary of the invention
Consider the problems referred to above and propose the present invention.The present invention aims to provide a kind of method of supplying power to power electronic equipment and electric supply installation, and it can utilize battery electric quantity fully while optimization power supplying efficiency, and provides the flying power of battery.
According to an aspect of the present invention, provide a kind of method of supplying power to, described method is applied to an electronic equipment, described electronic equipment comprises the first circuit part and second circuit part, described method of supplying power to comprises: utilize described first battery to be powered to described first circuit part by the first path, and utilizes described second battery by alternate path to described second circuit energize portions; Detect the electric parameter of described first battery; Judge the electric parameter whether first predetermined condition of described first battery, produce the first judged result; And when described first judged result represents that the electric parameter of described first battery meets described first predetermined condition, cut off described first battery by the power supply of described first path to described first circuit part, and utilize described second battery to be powered to described first circuit part by third path.The power supplying efficiency utilizing described first battery to be powered to described first circuit part by described third path with described second battery to the power supplying efficiency Billy that described first circuit part is powered by described first path is high.
Preferably, method of supplying power to according to the present invention also comprises: the electric parameter detecting described second battery; Judge the electric parameter whether second predetermined condition of described second battery, produce the second judged result; And when described second judged result represents that the electric parameter of described second battery meets described second predetermined condition, cutting off utilizes described second battery by the power supply of described alternate path to described second circuit part, and utilizes described first battery by second circuit energize portions described in four-way road direction.The power supplying efficiency utilizing described second battery to be powered by the first circuit part described in described four-way road direction with described first battery to the power supplying efficiency Billy that described first circuit part is powered by described alternate path is high.
Preferably, the electric parameter of described first battery is the amplitude of the voltage that the first battery exports, and described first predetermined condition is: the amplitude of the voltage that described first battery exports is lower than the first battery voltage threshold; And the electric parameter of described second battery is the amplitude of the voltage that the second battery exports, described second predetermined condition is: the amplitude of the voltage that described second battery exports is lower than the second battery voltage threshold.
Preferably, the electric parameter of described first battery is the residual electric quantity of the first battery, and described first predetermined condition is: the residual electric quantity of described first battery is lower than the first battery power threshold; And the electric parameter of described second battery is the residual electric quantity of the second battery, described second predetermined condition is: the residual electric quantity of described second battery is lower than the second battery power threshold.
Preferably, in described first path, directly export the voltage that described first battery exports to described first circuit part; In described third path, voltage transformation to the first predetermined voltage exported by described second battery is to power to described first circuit part.
According to a further aspect in the invention, provide a kind of electric supply installation, described electric supply installation is used for the power electronic equipment comprising the first circuit part and second circuit part, and described electric supply installation comprises: the first battery, for being powered to described first circuit part by the first path; Second battery, for by alternate path to described second circuit energize portions; First detection part, for detecting the electric parameter of the first battery; And first control circuit, for judging the electric parameter whether first predetermined condition of described first battery, and when the electric parameter of described first battery meets described first predetermined condition, cut off described first battery by the power supply of described first path to described first circuit part, and utilize described second battery to be powered to described first circuit part by third path.The power supplying efficiency utilizing described first battery to be powered to described first circuit part by described third path with described second battery to the power supplying efficiency Billy that described first circuit part is powered by described first path is high.
According to electric supply installation of the present invention, also comprise: the second detection part, for detecting the electric parameter of the second battery; And second control circuit, for judging the electric parameter whether second predetermined condition of described second battery, and when the electric parameter of described second battery meets described second predetermined condition, cut off described second battery by the power supply of described alternate path to described first circuit part, and utilize described first battery by second circuit energize portions described in four-way road direction.Utilize described second battery high by the power supplying efficiency of second circuit energize portions described in described four-way road direction with described first battery to the power supplying efficiency Billy of described second circuit energize portions by described alternate path.
Preferably, according to electric supply installation of the present invention, also comprise: reduction voltage circuit, it is in described third path, for receive second battery export voltage, by described second battery export voltage transformation to the first predetermined voltage and this first predetermined voltage is provided to described first circuit part.
Preferably, electric supply installation according to the present invention also comprises: booster circuit, it exports the input being connected to described second circuit part, in described alternate path, directly export the voltage that described second battery exports to described booster circuit, and in described 4th path, directly export the voltage that described first battery exports to described booster circuit.
According to another aspect of the invention, provide a kind of electronic equipment, described electronic equipment comprises: the first circuit part, and described first circuit part operates on the voltage higher than the first voltage threshold; The second circuit part different from described first circuit part, described second circuit part operates on the voltage higher than the second voltage threshold; First battery, and the second battery, wherein, utilized the first battery to be powered to described first circuit part by the first path, and utilize the second battery by alternate path to described second circuit energize portions; Or utilize the first battery to be powered and by second circuit energize portions described in four-way road direction to described first circuit part by the first path; Or utilize the second battery to be powered to described first circuit part by third path to described second circuit energize portions by alternate path.Described first battery is utilized to provide the power supplying efficiency Billy higher than the voltage of described first voltage threshold to provide the power supplying efficiency of the voltage higher than described first voltage threshold high with described second battery to described first circuit part to described first circuit part.Described second battery is utilized to provide the power supplying efficiency Billy higher than the voltage of described second voltage threshold to provide the power supplying efficiency of the voltage higher than described second voltage threshold high with described first battery to described second circuit part to described second circuit part.
In accordance with a further aspect of the present invention, provide a kind of method of supplying power to, described method is applied in an electronic equipment, described electronic equipment comprises the first battery and second battery different from described first battery, described first battery is powered by first circuit part of the first path to described electronic equipment, and described second battery is powered by the described Part I of alternate path to described electronic equipment; Described method of supplying power to comprises: utilize described first battery to be powered to described first circuit part by described first path; Detect the electric parameter of described first battery, judge whether the electric parameter of described first battery meets predetermined condition, produces a judged result; When described judged result represents that the electric parameter of described first power supply meets predetermined condition, described second battery is utilized to be powered to described first circuit part by described alternate path.The power supplying efficiency utilizing described first battery to power to described first circuit part to the power supplying efficiency Billy that described first circuit part is powered with described second battery is high.
Accompanying drawing explanation
Embodiments of the present invention is described in detail in conjunction with the drawings, and above and other objects of the present invention, feature, advantage will become apparent, wherein:
Fig. 1 illustrates the flow chart of the method for supplying power to power electronic equipment according to the embodiment of the present invention;
Fig. 2 illustrates the schematic block diagram of the electric supply installation to power electronic equipment according to the embodiment of the present invention;
Fig. 3 illustrates the example of the circuit of the electric supply installation to power electronic equipment according to the embodiment of the present invention;
Fig. 4 illustrates the different operating state of three kinds of the circuit shown in Fig. 3;
Fig. 5 illustrates the sample implementation of the circuit shown in Fig. 3; And
Fig. 6 illustrates the schematic block diagram of the electronic equipment according to the embodiment of the present invention.
Embodiment
Describe below with reference to accompanying drawings according to the method for supplying power to power electronic equipment of the embodiment of the present invention and electric supply installation and electronic equipment.
First, with reference to Fig. 1, the method for supplying power to 100 to power electronic equipment according to the embodiment of the present invention is described.Described electronic equipment can comprise the first circuit part, second circuit part, the first battery and second battery different from described first battery.Alternatively, described electronic equipment only can comprise the first circuit part and second circuit part, and the first battery and the second battery are outside described electronic equipment.
The method of supplying power to 100 to power electronic equipment according to the embodiment of the present invention starts in step S105.
In step S110, utilize described first battery to be powered to described first circuit part by the first path, and utilize described second battery by alternate path to described second circuit energize portions.Exemplarily, by the first path by described first battery export voltage directly export described first circuit part to, or by described first battery export voltage transformation and by conversion after voltage export described first circuit part to; By alternate path by described second battery export voltage directly export described second circuit part to, or by described second battery export voltage transformation and by conversion after voltage export described second circuit part to.
In step S120, detect the electric parameter of described first battery.Exemplarily, the electric parameter of battery can be the amplitude of voltage of battery output and/or the residual electric quantity of battery.
Then, in step S130, judge the electric parameter whether first predetermined condition of described first battery, produce the first judged result.
Exemplarily, when the electric parameter of the first battery is the amplitude of the voltage that the first battery exports, described first predetermined condition can be: the amplitude of the voltage that the first battery exports is lower than the first battery voltage threshold.Alternatively, as another example, when the electric parameter of the first battery is the residual electric quantity of the first battery, described first predetermined condition can be: the residual electric quantity of the first battery is lower than the first battery power threshold.
Next, in step S140, when described first judged result represents that the electric parameter of described first battery meets described first predetermined condition, cut off described first battery by the power supply of described first path to described first circuit part, and utilize described second battery to be powered to described first circuit part by third path.The power supplying efficiency utilizing described first battery to be powered to described first circuit part by described third path with described second battery to the power supplying efficiency Billy that described first circuit part is powered by described first path is high.
Exemplarily, by third path by described second battery export voltage directly export described first circuit part to, or by described second battery export voltage transformation and by conversion after voltage export described first circuit part to.Preferably, the voltage that voltage ratio first battery that described second battery exports exports is high, and the voltage step-down exported by described second battery by third path also exports the voltage after step-down to described first circuit part.
In step S120-S140, detect and judge the electric parameter whether first predetermined condition of the first battery, and when first predetermined condition, cutting off the power supply of the first battery to the first circuit part, and connecting the power supply of the second battery to the first circuit part.Thus, the second battery electric quantity is not yet used up when the first battery electric quantity is used up, can continue to power electronic equipment, improve the operating time of electronic equipment.
In addition, the method of supplying power to power electronic equipment according to the embodiment of the present invention can also perform similar operation to the second battery, and when the electric parameter second predetermined condition of the second battery, cut off the power supply of the second battery to second circuit part, and connect the power supply of the first battery to second circuit part.
In step S150, detect the electric parameter of described second battery.Exemplarily, the electric parameter of battery can be the amplitude of voltage of battery output and/or the residual electric quantity of battery.
In step S160, judge the electric parameter whether second predetermined condition of described second battery, and produce the second judged result.
Exemplarily, when the electric parameter of the second battery is the amplitude of the voltage that the second battery exports, described second predetermined condition can be: the amplitude of the voltage that the second battery exports is lower than the second battery voltage threshold.Alternatively, as another example, when the electric parameter of the second battery is the residual electric quantity of the second battery, described second predetermined condition can be: the residual electric quantity of the second battery is lower than the second battery power threshold.
Next, in step S170, when described second judged result represents that the electric parameter of described second battery meets described second predetermined condition, cutting off utilizes described second battery by the power supply of described alternate path to described second circuit part, and utilizes described first battery by second circuit energize portions described in four-way road direction.The power supplying efficiency utilizing described second battery to be powered by the first circuit part described in described four-way road direction with described first battery to the power supplying efficiency Billy that described first circuit part is powered by described alternate path is high.
Exemplarily, by the 4th path by described first battery export voltage directly export described second circuit part to, or by described first battery export voltage transformation and by conversion after voltage export described second circuit part to.Preferably, the voltage that voltage ratio first battery that described second battery exports exports is high, the voltage exported by second battery raises and exports the voltage after raising to described second circuit part, or the voltage exported by the first battery raises and exports the voltage after raising to described second circuit part.
Finally, in step S199, the method for supplying power to 100 to power electronic equipment according to a first embodiment of the present invention terminates.
Although describing the method for supplying power to 100 to power electronic equipment according to a first embodiment of the present invention under the background of power electronic equipment, but it will be understood by those skilled in the art that, can outside electronic equipment or within implement this method of supplying power to 100, namely not only can implement this method of supplying power to 100 when from electronic device exterior to power electronic equipment, and this method of supplying power to 100 can be implemented when the power unit comprised from electronic equipment is powered to the system unit in electronic equipment.Hereinafter, simple for stating, still adopt " to power electronic equipment " this expression form.Except as otherwise noted, state " to power electronic equipment " intention to contain and to power from power unit to the components of system as directed electronic equipment two kinds of situations externally to power electronic equipment and in electronic equipment internal.
Next, with reference to figure 2-3, the electric supply installation 200 to power electronic equipment according to the embodiment of the present invention is described.
The schematic block diagram of the electric supply installation 200 to power electronic equipment is according to a first embodiment of the present invention illustrated in Fig. 2.
Electric supply installation 200 comprises the first battery 210, first detection part 220, second battery 230, second detection part 240, first control circuit 250 and second control circuit 260.
As mentioned above, electric supply installation 200 can comprise in the electronic device as the part of electronic equipment, or can be placed in the outside of electronic equipment.
Alternatively, electric supply installation 200 partly can be arranged in electronic equipment, part is positioned at electronic device exterior.Such as, the first battery 210 and the second battery 230 are positioned at electronic device exterior, and the first detection part 220, second detection part 240, first control circuit 250 and second control circuit 260 are arranged in electronic equipment.
First battery 210 and the second battery 230 export supply power voltage.First battery 210 is connected to the input of the first path and the 4th path, and the second battery 230 is connected to the input of alternate path and third path.
First detection part 220 detects the electric parameter of described first battery, and exemplarily, the electric parameter of the first battery can be the amplitude of voltage and/or the residual electric quantity of the first battery of the first battery output.Second detection part 240 detects the electric parameter of described second battery, and exemplarily, the electric parameter of the second battery can be the amplitude of voltage and/or the residual electric quantity of the second battery of the second battery output.
The electric parameter of the first battery that first control circuit 250 detects based on the first detection part 220, judge the electric parameter whether first predetermined condition of described first battery, and correspondingly control to power to the first circuit part by the first path or by third path.The electric parameter of the second battery that second control circuit 260 detects based on the second detection part 240, judge the electric parameter whether second predetermined condition of described second battery, and correspondingly control by alternate path or by four-way road direction second circuit energize portions.
Exemplarily, when the electric parameter of the first battery is the amplitude of the voltage that the first battery exports, described first predetermined condition can be: the amplitude of the voltage that the first battery exports is lower than the first battery voltage threshold; Correspondingly, when the electric parameter of the second battery is the amplitude of the voltage that the second battery exports, described second predetermined condition can be: the amplitude of the voltage that the second battery exports is lower than the second battery voltage threshold.
Alternatively, as another example, when the electric parameter of the first battery is the residual electric quantity of the first battery, described first predetermined condition can be: the residual electric quantity of the first battery is lower than the first battery power threshold; Correspondingly, when the electric parameter of the second battery is the residual electric quantity of the second battery, described second predetermined condition can be: the residual electric quantity of the second battery is lower than the second battery power threshold.
When described first judged result represents that the electric parameter of described first battery meets described first predetermined condition, first control circuit 250 cuts off described first battery by the power supply of described first path to described first circuit part, and utilizes described second battery to be powered to described first circuit part by third path.The power supplying efficiency utilizing described first battery to be powered to described first circuit part by described third path with described second battery to the power supplying efficiency Billy that described first circuit part is powered by described first path is high.
Exemplarily, the voltage that voltage ratio second battery that described first battery exports exports is low.In described first path, the voltage that first battery exports is either directly output to described first circuit part, and in described third path, the voltage that the second battery exports is reduced to the first predetermined voltage via reduction voltage circuit, and export described first predetermined voltage to described first circuit part.Thus, when utilizing the second battery to power to described first circuit part via third path, in the reduction voltage circuit increased, there is loss.
On the other hand, when described second judged result represents that the electric parameter of described second battery meets described second predetermined condition, second control circuit 260 cuts off described second battery by the power supply of described alternate path to described second circuit part, and utilizes described first battery by second circuit energize portions described in four-way road direction.Utilize described second battery high by the power supplying efficiency of second circuit energize portions described in described four-way road direction with described first battery to the power supplying efficiency Billy of described second circuit energize portions by described alternate path.
Exemplarily, the voltage that voltage ratio second battery that described first battery exports exports is low.In described alternate path, the voltage exported by second battery is increased to the second predetermined voltage via booster circuit and falls described second predetermined voltage and is provided to described second circuit part, and in described 4th path, the voltage exported by the first battery is increased to described second predetermined voltage via booster circuit and exports described second predetermined voltage to described second circuit part.Thus, in alternate path, the input voltage of booster circuit is higher than the input voltage of booster circuit in the 4th path, and therefore, the voltage conversion efficiency in alternate path is higher than the voltage conversion efficiency in the 4th path.
As another example, the voltage that voltage ratio second battery that described first battery exports exports is low.Described second circuit part itself comprises booster circuit, and the output voltage of the first battery is connected with the input of booster circuit included in second circuit part with the output voltage of the second battery.In the case, similar to the above case, utilize described second battery high by the voltage conversion efficiency described in described four-way road direction during second circuit energize portions with described first battery to voltage conversion efficiency Billy during described second circuit energize portions by described alternate path.
Illustrate the example of the circuit of the electric supply installation to power electronic equipment according to the embodiment of the present invention in figure 3.
In figure 3, under the control of first control circuit, 1S1P battery (that is, by a battery unit form 1 string 1 and battery structure) (the first battery) by the first path to system power supply; Under the control of second control circuit, 1S1P battery is powered by four-way road direction Boost circuit (booster circuit) and backlight circuit.
On the other hand, under the control of second control circuit, 2S1P battery (that is, 2 strings 1 battery structure be also made up of two battery units) (the second battery) is powered to Boost circuit and backlight circuit by alternate path; Under the control of first control circuit, 2S1P battery by third path to system power supply.
As known in the art, the supply power voltage needed for backlight circuit is higher than the supply power voltage needed for circuit system, and the output voltage of 2S1P battery in normal working conditions should be higher than the output voltage of 1S1P battery.
The work of the circuit shown in Fig. 3 is described below in conjunction with Fig. 4, illustrates the different operating state of three kinds of the circuit shown in Fig. 3 at Fig. 4.
Exemplarily, the output voltage of 1S1P battery is the output voltage of V1,2S1P battery is V2.In normal working conditions, the output voltage V1 of 1S1P battery is lower than the output voltage V2 of 2S1P battery.
As shown in (A) in Fig. 4, V1 higher than the first battery predetermined voltage, 1S1P battery under the control of first control circuit to system power supply; On the other hand, V2 is higher than the second battery predetermined voltage, 2S1P battery is powered to Boost circuit and backlight circuit under the control of second control circuit, this second battery predetermined voltage preferably higher than the first battery predetermined voltage lower than the rated output voltage of the first battery.In the case, electric supply installation works in normal condition, that is, 1S1P battery and 2S1P battery electricity separately are not all finished, utilize 1S1P battery high directly to the efficiency of system power supply, and the efficiency utilizing 2S1P battery to power to backlight circuit via Boost circuit is high.
As shown in (B) in Fig. 4, the voltage V1 that 1S1P battery exports is lower than the first battery predetermined voltage, under the control of first control circuit, voltage V2 decompression transformation to the first predetermined voltage exported by 2S1P battery via Buck circuit is with to system power supply; On the other hand, V2 is higher than the second battery predetermined voltage, and 2S1P battery is powered to Boost circuit and backlight circuit under the control of second control circuit.In the case, the electricity of 1S1P battery is finished, the electricity of 2S1P battery is not finished, utilize 2S1P battery low directly to the efficiency of system power supply with 1S1P battery to the efficiency Billy of system power supply via Buck circuit, and the efficiency utilizing 2S1P battery to power to backlight circuit via Boost circuit is high.
As shown in (C) in Fig. 4, the voltage V1 that 1S1P battery exports, higher than the first battery predetermined voltage, under the control of first control circuit, directly exports the voltage V1 that 1S1P battery exports to system; On the other hand, the voltage V2 that 2S1P battery exports is lower than the second battery predetermined voltage, and under the control of second control circuit, 1S1P battery is powered to Boost circuit and backlight circuit.In the case, the electricity of 1S1P battery is not finished, the electricity of 2S1P battery is finished, utilize 1S1P battery high directly to the efficiency of system power supply, and the efficiency utilizing 1S1P battery to power to backlight circuit via Boost circuit with 2S1P battery to the efficiency Billy that backlight circuit is powered via Boost circuit is low.
Fig. 5 illustrates the sample implementation of the circuit shown in Fig. 3.
The output voltage V1 of 1S1P battery is input to the inverting input of voltage comparator U2, the first reference voltage Vref 1 (the first battery predetermined voltage) is input to the in-phase input end of voltage comparator U2.The output voltage V2 of 2S1P battery is input to the in-phase input end of voltage comparator U1, the second reference voltage Vref 2 (the second battery predetermined voltage) is input to the inverting input of voltage comparator U1.
When the output voltage V1 of 1S1P battery is higher than the first reference voltage Vref 1, voltage comparator U2 output low level, make PMOS transistor Q1 conducting and nmos pass transistor Q2 ended, thus by directly export the output of 1S1P battery voltage and to system power supply.
When the output voltage V1 of 1S1P battery is lower than the first reference voltage Vref 1, voltage comparator U2 exports high level, PMOS transistor Q1 is ended and makes nmos pass transistor Q2 conducting, voltage step-down to the first predetermined voltage exported by 2S1P battery via Buck circuit thus also exports this predetermined voltage to circuit system.In the case, with 1S1P battery directly to compared with system power supply, add Buck circuit, this Buck circuit introduces decompression transformation loss, thus, reduces the power supplying efficiency of powering to circuit system.
When the output voltage V2 of 2S1P battery is higher than the second reference voltage Vref 2, voltage comparator U1 exports high level, PMOS transistor Q3 is ended and makes nmos pass transistor Q4 conducting, being powered thus by 2S1P battery to Boost circuit and backlight circuit.
When the output voltage V2 of 2S1P battery is lower than the second reference voltage Vref 2, voltage comparator U1 output low level, is made PMOS transistor Q3 conducting and nmos pass transistor Q4 is ended, being powered thus by 1S1P battery to Boost circuit and backlight circuit.In the case, to power with backlight circuit to Boost circuit with 2S1P battery and compare, the input voltage of Boost circuit reduces, thus, reduce the voltage transformation efficiency of Boost circuit, thus also correspondingly reduce the power supplying efficiency of powering to Boost circuit and backlight circuit.
Although give the sample implementation of the electric supply installation according to the embodiment of the present invention in Figure 5 by way of example, but the present invention is not limited thereto.Such as, those skilled in the art can change the connected mode of the input signal of transformation comparator and the selection of PMOS transistor and nmos pass transistor as required.Again such as, those skilled in the art can connect an extra transistor Q5 (PMOS or NMOS) between 2S1P battery and Buck circuit, and are controlled conducting and the cut-off of transistor Q1, Q2 and Q5 by a control logic circuit.
In the case, exemplarily, when the output voltage V1 of 1S1P battery is higher than the first reference voltage Vref 1, makes transistor Q1 conducting and transistor Q2 and Q5 is ended; And when the output voltage V1 of 1S1P battery becomes lower than the first reference voltage Vref 1, first make transistor Q5 conducting and after waiting for the output voltage stabilization of Buck circuit, then transistor Q1 is ended and transistor Q2 conducting.
Although the main electric parameter using the voltage of battery output as battery is described above, but those skilled in the art are also easy by reading the voltameter of battery using the electric parameter of the dump energy of battery as battery, thus realize similarly according to the method for supplying power to power electronic equipment of the present invention and electric supply installation.
Such as, read the voltameter of the first battery, the dump energy of the first battery and the first battery power threshold are compared, and result based on the comparison, control to utilize the first battery to power to the first circuit part via the first path or utilize the second battery to power to the first circuit part via third path; On the other hand, read the voltameter of the second battery, the dump energy of the second battery and the second battery power threshold are compared, and result based on the comparison, control to utilize the second battery via alternate path to second circuit energize portions or utilize the first battery via four-way road direction second circuit energize portions.
In addition, Fig. 6 illustrates the electronic equipment 600 according to the embodiment of the present invention.
Electronic equipment 600 comprises the first battery 610, second battery 620, first circuit part 630 and second circuit part 640.
Described first circuit part 630 operates on the voltage higher than the first voltage threshold; Described second circuit part 640 operates on the voltage higher than the second voltage threshold.
In described electronic equipment 600, three kinds of different operating states can be there are:
First operating state: utilize the first battery 610 to be powered to described first circuit part 630 by the first path, and utilize the second battery 620 to be powered to described second circuit part 640 by alternate path;
Second operating state: utilize the first battery 610 power by the first path to described first circuit part 630 and powered by second circuit part 640 described in four-way road direction;
3rd operating state: utilize the second battery 620 to be powered to described second circuit part 640 by alternate path and powered to described first circuit part 630 by third path.
In electronic equipment 600, described first battery 610 is utilized to provide the power supplying efficiency Billy higher than the voltage of described first voltage threshold to provide the power supplying efficiency of the voltage higher than described first voltage threshold high with described second battery 620 to described first circuit part 630 to described first circuit part 630.
In electronic equipment 600, described second battery 620 is utilized to provide the power supplying efficiency Billy higher than the voltage of described second voltage threshold to provide the power supplying efficiency of the voltage higher than described second voltage threshold high with described first battery 610 to described second circuit part 640 to described second circuit part 640.
In addition, can also comprise in described electronic equipment 600 for the first detection part of the first battery 610 and the second detection part for the second battery 620.
In addition, the first control circuit for controlling the switching between the first path and third path and the second control circuit for controlling the switching between alternate path and the 4th path can also be comprised in described electronic equipment 600.
This first detection part can be included within the first battery 610 as a part for the first battery 610, such as, be integrated in the voltage detector in the first battery 610 or voltameter, or can be included in electronic equipment 600 as the detection part independent of the first battery 610.Similarly, this second detection part can be included within the first battery 620 as a part for the first battery 620, such as, be integrated in the voltage detector in the second battery 620 or voltameter, or can be included in electronic equipment 600 as the detection part independent of the second battery 620.
In addition, first control circuit can a part be included in the first battery 610, another part is included in the second battery 620, and similarly, second control circuit also can a part be included in the first battery 610, another part is included in the second battery 620.Alternatively, first control circuit and second control circuit can be included in electronic equipment 600 independent of the first battery 610 and the second battery 620 ground.
Exemplarily, described second circuit part comprises booster circuit and display backlight circuit; And described first circuit part is other circuit system part different from described second circuit part in described electronic equipment.In the case, such as, by the first path, the output voltage of the first battery is input to the first circuit part same as before, by alternate path, the output voltage of the second battery is input to second circuit part same as before, by third path the output voltage of the second battery be depressurized to the first predetermined voltage and this first predetermined voltage is input to the first circuit part, and by the 4th path, the output voltage of the first battery being input to second circuit part same as before.
As another example, described second circuit part comprises display backlight circuit; And described first circuit part is other circuit system part different from described second circuit part in described electronic equipment.In the case, such as, by the first path, the output voltage of the first battery is input to the first circuit part same as before, by alternate path the output voltage of the second battery is increased to the second predetermined voltage and this second predetermined voltage is input to second circuit part, by third path the output voltage of the second battery be depressurized to the first predetermined voltage and this first predetermined voltage is input to the first circuit part, and by the 4th path the output voltage of the first battery be increased to the second predetermined voltage and this second predetermined voltage is input to second circuit part.
Although in the above description, all utilize the second battery to the second circuit energize portions in electronic equipment under normal circumstances, and utilize when the second battery electric quantity is used up the first battery to the second circuit energize portions in electronic equipment, but the present invention is not limited thereto.Can with the power supply of the second circuit part in electronic equipment independently, the power supply to the first circuit part in electronic equipment is discussed, and such as, described second circuit part may by the second powered battery, even by the 3rd battery and/and the 4th powered battery.
Therefore, be applied in an electronic equipment according to the method for supplying power to of further embodiment of this invention, described electronic equipment comprises the first battery and second battery different from described first battery, described first battery is powered by first circuit part of the first path to described electronic equipment, and described second battery is powered by the described Part I of alternate path to described electronic equipment.Described method of supplying power to comprises: utilize described first battery to be powered to described first circuit part by described first path; Detect the electric parameter of described first battery; Judge whether the electric parameter of described first battery meets predetermined condition, produces a judged result; And when described judged result represents that the electric parameter of described first power supply meets predetermined condition, utilize described second battery to be powered to described first circuit part by described alternate path.
In described electronic equipment, the power supplying efficiency utilizing described first battery to power to described first circuit part to the power supplying efficiency Billy that described first circuit part is powered with described second battery is high.
Exemplarily, by the first path, the output voltage of the first battery is input to the first circuit part same as before, by alternate path the output voltage of the second battery is depressurized to the first predetermined voltage and this first predetermined voltage is input to the first circuit part.
As another example, by the first path, the output voltage of the first battery is input to the first circuit part same as before, by alternate path the output voltage of the second battery is increased to the first predetermined voltage and this first predetermined voltage is input to the first circuit part.
As another example, the output voltage of the first battery is higher than the output voltage of the second battery.By the first path the output voltage of the first battery be increased to the first predetermined voltage and this first predetermined voltage is input to the first circuit part, and by alternate path the output voltage of the second battery be increased to the first predetermined voltage and this first predetermined voltage is input to the first circuit part.
Should be appreciated that and can realize according to the method for supplying power to power electronic equipment of the present invention and electric supply installation with the various forms of hardware, software, firmware, application specific processor or their combination.
Although describe some embodiments of the present invention with reference to the accompanying drawings here, should be appreciated that described embodiment is only illustrative, and not restrictive.It will be appreciated by those skilled in the art that when not deviating from the scope and spirit of the present invention limited in claim and equivalent thereof, the change in various forms and details can be made these exemplary embodiments.
Claims (17)
1. a method of supplying power to, described method is applied to an electronic equipment, and described electronic equipment comprises the first circuit part and second circuit part, and described method of supplying power to comprises:
Utilize the first battery to be powered to described first circuit part by the first path, and utilize the second battery by alternate path to described second circuit energize portions;
Detect the electric parameter of described first battery;
Judge the electric parameter whether first predetermined condition of described first battery, produce the first judged result; And
When described first judged result represents that the electric parameter of described first battery meets described first predetermined condition, cut off described first battery by the power supply of described first path to described first circuit part, and utilize described second battery to be powered to described first circuit part by third path;
Wherein, the power supplying efficiency utilizing described first battery to be powered to described first circuit part by described third path with described second battery to the power supplying efficiency Billy that described first circuit part is powered by described first path is high.
2. method of supplying power to as claimed in claim 1, also comprises:
Detect the electric parameter of described second battery;
Judge the electric parameter whether second predetermined condition of described second battery, produce the second judged result; And
When described second judged result represents that the electric parameter of described second battery meets described second predetermined condition, cutting off utilizes described second battery by the power supply of described alternate path to described second circuit part, and utilizes described first battery by second circuit energize portions described in four-way road direction;
Wherein, the power supplying efficiency utilizing described second battery to be powered by the first circuit part described in described four-way road direction with described first battery to the power supplying efficiency Billy that described first circuit part is powered by described alternate path is high.
3. method of supplying power to as claimed in claim 2, wherein,
The electric parameter of described first battery is the amplitude of the voltage that the first battery exports, and described first predetermined condition is: the amplitude of the voltage that described first battery exports is lower than the first battery voltage threshold; And
The electric parameter of described second battery is the amplitude of the voltage that the second battery exports, and described second predetermined condition is: the amplitude of the voltage that described second battery exports is lower than the second battery voltage threshold.
4. method of supplying power to as claimed in claim 2, wherein,
The electric parameter of described first battery is the residual electric quantity of the first battery, and described first predetermined condition is: the residual electric quantity of described first battery is lower than the first battery power threshold; And
The electric parameter of described second battery is the residual electric quantity of the second battery, and described second predetermined condition is: the residual electric quantity of described second battery is lower than the second battery power threshold.
5. method of supplying power to as claimed in claim 2, wherein,
In described first path, directly export the voltage that described first battery exports to described first circuit part; And
In described third path, voltage transformation to the first predetermined voltage exported by described second battery is to power to described first circuit part.
6. method of supplying power to as claimed in claim 5, wherein,
Described second circuit part comprises booster circuit and display backlight circuit;
Described first circuit part is other circuit part different from described second circuit part in described electronic equipment; And
Be by voltage step-down to the first predetermined voltage of the second battery output by voltage transformation to the first predetermined voltage that described second battery exports.
7. an electric supply installation, described electric supply installation is used for the power electronic equipment comprising the first circuit part and second circuit part, and described electric supply installation comprises:
First battery, for powering to described first circuit part by the first path;
Second battery, for by alternate path to described second circuit energize portions;
First detection part, for detecting the electric parameter of the first battery; And
First control circuit, for judging the electric parameter whether first predetermined condition of described first battery, and when the electric parameter of described first battery meets described first predetermined condition, cut off described first battery by the power supply of described first path to described first circuit part, and utilize described second battery to be powered to described first circuit part by third path
Wherein, the power supplying efficiency utilizing described first battery to be powered to described first circuit part by described third path with described second battery to the power supplying efficiency Billy that described first circuit part is powered by described first path is high.
8. electric supply installation as claimed in claim 7, also comprises:
Second detection part, for detecting the electric parameter of the second battery; And
Second control circuit, for judging the electric parameter whether second predetermined condition of described second battery, and when the electric parameter of described second battery meets described second predetermined condition, cut off described second battery by the power supply of described alternate path to described first circuit part, and utilize described first battery by second circuit energize portions described in four-way road direction
Wherein, utilize described second battery high by the power supplying efficiency of second circuit energize portions described in described four-way road direction with described first battery to the power supplying efficiency Billy of described second circuit energize portions by described alternate path.
9. electric supply installation as claimed in claim 8, wherein,
The electric parameter of described first battery is the amplitude of the voltage that the first battery exports, and described first predetermined condition is: the amplitude of the voltage that described first battery exports is lower than the first battery voltage threshold; And
The electric parameter of described second battery is the amplitude of the voltage that the second battery exports, and described second predetermined condition is: the amplitude of the voltage that described second battery exports is lower than the second battery voltage threshold.
10. electric supply installation as claimed in claim 8, wherein,
The electric parameter of described first battery is the residual electric quantity of the first battery, and described first predetermined condition is: the residual electric quantity of described first battery is lower than the first battery power threshold; And
The electric parameter of described second battery is the residual electric quantity of the second battery, and described second predetermined condition is: the residual electric quantity of described second battery is lower than the second battery power threshold.
11. electric supply installations as claimed in claim 8, also comprise:
Reduction voltage circuit, it is in described third path, for receive second battery export voltage, by described second battery export voltage transformation to the first predetermined voltage and this first predetermined voltage is provided to described first circuit part;
In described first path, described first battery directly exports its output voltage to described first circuit part.
12. electric supply installations as claimed in claim 8, wherein,
In described alternate path, directly export the voltage that described second battery exports to described second circuit part, and in described 4th path, directly export the voltage that described first battery exports to described second circuit part.
13. electric supply installations as claimed in claim 8, also comprise booster circuit, and it exports the input being connected to described second circuit part,
In described alternate path, directly export the voltage that described second battery exports to described booster circuit, and in described 4th path, directly export the voltage that described first battery exports to described booster circuit.
14. 1 kinds of electronic equipments, described electronic equipment comprises:
First circuit part, described first circuit part operates on the voltage higher than the first voltage threshold;
The second circuit part different from described first circuit part, described second circuit part operates on the voltage higher than the second voltage threshold;
First battery, and
Second battery,
Wherein, utilize the first battery to be powered to described first circuit part by the first path, and utilize the second battery by alternate path to described second circuit energize portions; Or
The first battery is utilized to be powered and by second circuit energize portions described in four-way road direction to described first circuit part by the first path; Or
The second battery is utilized to be powered to described first circuit part by third path to described second circuit energize portions by alternate path;
Wherein, described first battery is utilized to provide the power supplying efficiency Billy higher than the voltage of described first voltage threshold to provide the power supplying efficiency of the voltage higher than described first voltage threshold high with described second battery to described first circuit part to described first circuit part;
Described second battery is utilized to provide the power supplying efficiency Billy higher than the voltage of described second voltage threshold to provide the power supplying efficiency of the voltage higher than described second voltage threshold high with described first battery to described second circuit part to described second circuit part.
15. electronic equipments as claimed in claim 14, wherein,
Described second circuit part comprises booster circuit and display backlight circuit;
Described first circuit part is other circuit part different from described second circuit part in described electronic equipment.
16. electronic equipments as claimed in claim 15, also comprise reduction voltage circuit, it is in described third path, for receive second battery export voltage, by described second battery export voltage transformation to the first predetermined voltage and this first predetermined voltage is provided to described first circuit part.
17. 1 kinds of method of supplying power to, described method is applied in an electronic equipment, described electronic equipment comprises the first battery and second battery different from described first battery, described first battery is powered by first circuit part of the first path to described electronic equipment, and described second battery is powered by described first circuit part of alternate path to described electronic equipment; Described method of supplying power to comprises:
Described first battery is utilized to be powered to described first circuit part by described first path;
Detect the electric parameter of described first battery;
Judge whether the electric parameter of described first battery meets predetermined condition, produces a judged result; And
When described judged result represents that the electric parameter of described first battery meets predetermined condition, described second battery is utilized to be powered to described first circuit part by described alternate path;
Wherein, the power supplying efficiency utilizing described first battery to power to described first circuit part to the power supplying efficiency Billy that described first circuit part is powered with described second battery is high.
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| CN201110233427.2A CN102938568B (en) | 2011-08-15 | 2011-08-15 | To method and apparatus and the electronic equipment of power electronic equipment |
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| CN201110233427.2A CN102938568B (en) | 2011-08-15 | 2011-08-15 | To method and apparatus and the electronic equipment of power electronic equipment |
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| CN102938568B true CN102938568B (en) | 2016-03-30 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1972072A (en) * | 2005-11-24 | 2007-05-30 | 台达电子工业股份有限公司 | Parallel uninterrupted power supply system |
| CN201336339Y (en) * | 2008-11-06 | 2009-10-28 | 富港电子（东莞）有限公司 | Battery module |
| CN101572745A (en) * | 2008-04-28 | 2009-11-04 | 深圳富泰宏精密工业有限公司 | Mobile phone current supply system and method |
-
2011
- 2011-08-15 CN CN201110233427.2A patent/CN102938568B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1972072A (en) * | 2005-11-24 | 2007-05-30 | 台达电子工业股份有限公司 | Parallel uninterrupted power supply system |
| CN101572745A (en) * | 2008-04-28 | 2009-11-04 | 深圳富泰宏精密工业有限公司 | Mobile phone current supply system and method |
| CN201336339Y (en) * | 2008-11-06 | 2009-10-28 | 富港电子（东莞）有限公司 | Battery module |
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