CN101834319A - Power supply management method and device and electronic equipment - Google Patents
Power supply management method and device and electronic equipment Download PDFInfo
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- CN101834319A CN101834319A CN201010123180A CN201010123180A CN101834319A CN 101834319 A CN101834319 A CN 101834319A CN 201010123180 A CN201010123180 A CN 201010123180A CN 201010123180 A CN201010123180 A CN 201010123180A CN 101834319 A CN101834319 A CN 101834319A
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Abstract
The embodiment of the invention provides power supply management method and device and electronic equipment, belonging to the technical field of electron. The power supply management method comprises the following steps of: detecting whether the output voltage of a power supply is not larger than a preset voltage value or not, if so, sending a voltage increase signal, increasing the output voltage to working voltage according to the voltage increase signal, and then outputting the working voltage. The embodiment of the invention can continuously drive a circuit of a primary electronic product to normally work by sufficiently utilizing the remaining power of a battery, thereby not only prolonging the service life of the battery and reducing the battery replacing times and cost, but also reducing the waste of electric energy.
Description
Technical field
The present invention relates to electronic technology field, particularly a kind of method of power management, device and electronic equipment.
Background technology
Along with the fast development of hyundai electronics industry, various electronic products are widely used in people's routine work, various fields in life, such as mobile phone, portable notebook computer.As everyone knows, power supply is the energy source of all electronic products, in case electronic product can't drive by enough electric energy, these electronic products just can't use so.And for by the electronic product of battery as power supply, because frequent use to electronic product, power consumption on the battery is very fast, also can the certain electric energy of loss even electronic product is under dormancy or the standby mode battery, finally cause the output voltage step-down of battery, can't drive circuit works.At this problem, though can solve, increased use cost after all, and the electric energy in the used batteries do not have full consumption and finishes by more renewing battery, it is abandoned can cause very big waste.
Though prior art also provides some to reduce the way of battery power loss, such as the low battery of a kind of electric energy loss of design, utilize rechargeable battery to recycle or reduce the power consumption of circuit as far as possible, but these ways more provide a kind of power save scheme, mainly be by changing the useful life that battery removes to prolong battery, do not realize that to the making full use of of battery electric quantity so how to make full use of remaining electric weight in the battery to continue to drive circuit in the primary electron product be that those skilled in the art wish the technical problem that solves for a long time always.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of method, device and electronic equipment of power management, method, device and electronic equipment by the power management that the embodiment of the invention provided, can make full use of remaining electric weight in the battery and continue to drive circuit in the primary electron product, make the primary electron product still can normally use, really prolonged the useful life of battery.
In order to realize the foregoing invention purpose, the embodiment of the invention provides a kind of method for managing power supply, and described method comprises:
Whether the output voltage that detects power supply is not more than predefined magnitude of voltage, if detected electric power output voltage is not more than predefined magnitude of voltage, then sends boost signal;
Export after according to boost signal described output voltage being risen to operating voltage.
For electric power output voltage effectively is promoted to operating voltage, described according to boost signal described output voltage is risen to export after the operating voltage comprise:
By described boost signal described electric power output voltage is boosted;
After the end of boosting, become operating voltage to export the voltage-regulation that promotes.
For the accurate booster tension of energy, real-time ensuring circuit energy operate as normal, described as a kind of embodiment of the present invention if detected electric power output voltage is not more than predefined magnitude of voltage, then send boost signal and comprise:
If detected electric power output voltage is not more than predefined magnitude of voltage, then obtain the parameter of boosting of described output voltage correspondence;
Transmission comprises the boost signal of the described parameter of boosting.
Described like this according to boost signal described output voltage is risen to export after the operating voltage be specially: according to the parameter of boosting in the described boost signal, export after described output voltage risen to operating voltage.
To achieve these goals, the embodiment of the invention also provides a kind of electric power controller, and described device comprises:
Logical circuit is used to judge whether the output voltage of power supply is not more than predefined magnitude of voltage, if judging electric power output voltage is not more than predefined magnitude of voltage, then sends boost signal;
Booster circuit is exported after the boost signal that is used for sending according to described logical circuit rises to operating voltage with described electric power output voltage.
In order effectively to send boost signal, as a kind of better simply embodiment of the present invention, described logical circuit comprises:
Testing circuit, whether the output voltage that is used to detect power supply is not more than predefined magnitude of voltage, if detected electric power output voltage is not more than predefined magnitude of voltage, then sends variable voltage signal;
Control circuit, the variable voltage signal that is used for sending according to described testing circuit sends boost signal.
For the accurate booster tension of energy, real-time ensuring circuit energy operate as normal, as a kind of embodiment of the present invention, described logical circuit is after judging electric power output voltage and being not more than predefined magnitude of voltage, specifically be used to obtain the parameter of boosting of described electric power output voltage correspondence, and send the boost signal that comprises the described parameter of boosting.Booster circuit just can rise to operating voltage with electric power output voltage according to the described parameter of boosting that receives like this, for circuit working.
For electric power output voltage effectively is promoted to operating voltage, the described booster circuit of the embodiment of the invention comprises:
The branch road that boosts is used for after the boost signal conducting that is received described electric power output voltage being boosted;
The power supply branch road is used for after the described branch road that boosts ends, and the voltage-regulation that the described branch road that boosts is promoted becomes operating voltage to export.
To achieve these goals, the embodiment of the invention also provides a kind of electronic equipment, and described electronic equipment comprises the described electric power controller of above-mentioned any inventive embodiments.These type of electronic device comprise: remote controller or portable terminal or electronic toy or three-dimensional liquid crystal display glasses or portable audio and video player.
The embodiment of the invention can make full use of remaining electric weight in the battery and continue to drive circuit operate as normal in the primary electron product, has not only prolonged the useful life of battery, has reduced and has changed the number of times and the cost of battery, and reduced waste of electric energy.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The FB(flow block) of a kind of method for managing power supply that Fig. 1 provides for the embodiment of the invention.
The FB(flow block) of the another kind of method for managing power supply that Fig. 2 provides for the embodiment of the invention.
Fig. 3 is the functional block diagram of a kind of electric power controller of the embodiment of the invention.
Fig. 4 is the circuit diagram of a kind of electric power controller of the embodiment of the invention.
The electronic functionalities structured flowchart that Fig. 5 provides for the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is removed, intactly described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Illustrative examples of the present invention and explanation thereof are used to explain the present invention; but it is not as a limitation of the invention; based on the embodiment among the present invention; those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Present embodiment provides a kind of power management techniques, this technology can be used in the battery powered electronic product of various needs, by detection to cell output voltage, automatically manage output voltage, make the operate as normal of holding circuit when the electric weight that stores in the battery is low, prolonged the useful life of battery greatly.
At this, illustrative examples of the present invention and explanation thereof are used to explain the present invention, but not as a limitation of the invention.
The embodiment of the invention provides a kind of method for managing power supply, and as shown in Figure 1, Fig. 1 is the FB(flow block) of embodiment of the invention method for managing power supply.As can be seen from Figure 1, the method for managing power supply in the present embodiment comprises:
Whether be not more than predefined magnitude of voltage 101. detect the output voltage of power supply,, then send boost signal if detected electric power output voltage is not more than predefined magnitude of voltage.
Power supply in the present embodiment can be supplying cell, because the electric energy in the battery constantly reduces, cause the output voltage of battery constantly to reduce, can't drive circuit works until being reduced to, based on the phenomenon that cell output voltage can reduce, this step detects the output voltage of battery, and whether the output voltage that detects battery is not more than (promptly being less than or equal to) predefined magnitude of voltage, if detected electric power output voltage is not more than predefined magnitude of voltage, then send boost signal.Wherein predefined magnitude of voltage is a threshold value, when the output voltage of battery is less than or equal to this threshold value, the output voltage that battery is described can't the driven circuit working, the control of need boosting, the output voltage of battery is risen to operating voltage just can make circuit working, so send boost signal after finishing above-mentioned detection.This threshold value can freely be set according to battery self actual conditions, and present embodiment does not limit at this.
A kind of simple realization mode as this step, this step can be after detected electric power output voltage be not more than predefined magnitude of voltage, send variable voltage signal earlier, this variable voltage signal can be a kind of low level signal, can realize by the simple circuit of active element composition from detecting the process that sends variable voltage signal like this, need not to increase single-chip microcomputer again and detect.Sending boost signal according to variable voltage signal then can realize by the control chip in the electronic product, control chip in the electronic product receives variable voltage signal, send boost signal again according to receiving variable voltage signal, can make that like this this step is easier to realize, need not in electronic product, to increase again other chips.The boost signal that sends in this step can be pulse-modulated signal, triggers according to this pulse-modulated signal and boosts, and the boost signal high level signal that also can boost for other triggerings certainly, this step does not limit at this.
102. export after according to boost signal described output voltage being risen to operating voltage.
After rising to operating voltage with described output voltage, exports the boost signal that this step sends according to step 101, so that circuit is according to the operating voltage operate as normal of output.Such as can by described boost signal described electric power output voltage being boosted earlier, after the end of boosting, become operating voltage to export the voltage-regulation that promotes again.
By the embodiment of the invention as can be seen, the described method for managing power supply of the embodiment of the invention is not a kind of technical scheme that realizes power saving, but judge in the battery road work of whether can powering of remaining electric weight by detecting electric power output voltage, when judged result is when remaining electric weight can't be powered road work in the battery, trigger boost operations, with having only the boost in voltage of the battery output of some dump energies is the method that operating voltage is given circuit supply, this method can fully use up the electric weight in the battery, not only prolonged the useful life of battery, reduced and changed the number of times and the cost of battery, and reduced waste of electric energy.
The embodiment of the invention provides another kind of battery management method, and as shown in Figure 2, Fig. 2 is the FB(flow block) of embodiment of the invention battery management method.As can be seen from Figure 2, the battery management method in the present embodiment comprises:
Whether be not more than predefined magnitude of voltage 201. detect the output voltage of battery,, then obtain the parameter of boosting of described output voltage correspondence if detected cell output voltage is not more than predefined magnitude of voltage.
Identical in the step that detects cell output voltage in this step and the foregoing description be not so repeat them here.Difference is after detected cell output voltage is not more than predefined magnitude of voltage, obtain the parameter of boosting of described output voltage correspondence, such as when the parameter of boosting is duty ratio, calculate corresponding duty ratio (computing formula: Vo=Vi/ (1-D) according to detected cell output voltage value and the required operating voltage of circuit working, wherein Vo is the required operating voltage of circuit working, Vi is detected cell output voltage value, and D is a duty ratio), thus obtain to boost parameter.Also can search the duty ratio of the voltage range correspondence at this detected cell output voltage value place, thereby obtain to boost parameter, the corresponding relation of this each voltage range and duty ratio is stored in the memory module of electronic product in advance, such as the memory module in the single-chip microcomputer, when detecting cell output voltage and be not more than predefined magnitude of voltage, can search the duty ratio of this detected cell output voltage value correspondence.Can also be according to the variable voltage signal of detected cell output voltage correspondence, obtain the duty ratio of this variable voltage signal correspondence, such as predefined magnitude of voltage difference in each testing circuit, single-chip microcomputer can be known the pairing duty ratio of this pin according to the pin that receives variable voltage signal, and these corresponding relations also set in advance and store certainly.
202. send the boost signal that comprises the described parameter of boosting.
According to step 201 as can be known, the parameter of boosting in the boost signal is not necessarily identical, and such as when the parameter of boosting is duty ratio, this boost signal promptly can be pulse-modulated signal, and the duty ratio difference in the pulse-modulated signal will cause the voltage difference that promotes.
203., export after described output voltage risen to operating voltage according to the parameter of boosting in the described boost signal.
This step is exported after parameter rises to operating voltage with described output voltage according to boosting, such as when the parameter of boosting is duty ratio, this step can be boosted described output voltage in duty ratio time corresponding section, with becoming operating voltage to export the voltage-regulation that promotes in the time period remaining in the cycle.
The embodiment of the invention can be obtained the parameter of boosting of corresponding detected cell output voltage, thereby accurately cell output voltage is risen to the target operating voltage, make that the method for managing power supply that present embodiment provided is more effective, the assurance electronic product can be under the suitable operating voltage for a long time works.
In order better to realize the described method of the foregoing description, the embodiment of the invention also provides a kind of electric power controller, this device can carry out power management to the battery powered electronic product of needs, as shown in Figure 3, Fig. 3 is the functional block diagram of a kind of electric power controller of the embodiment of the invention, described device comprises logical circuit 301 and booster circuit 302
Booster circuit 302 is connected with the output and the logical circuit 301 of battery, exports after the boost signal that is used for sending according to described logical circuit 301 rises to operating voltage with described cell output voltage.
As a kind of better simply implementation, the logical circuit 301 in the present embodiment can comprise:
Accordingly, the booster circuit in the present embodiment 302 can comprise:
The branch road 321 that boosts is used for after the boost signal conducting that is received described electric power output voltage being boosted;
Power supply branch road 322 is used for after the described branch road that boosts ends, and the voltage-regulation that the described branch road that boosts is promoted becomes operating voltage to export.
For the accurate booster tension of energy, better holding circuit operate as normal, logical circuit 301 in the present embodiment is after judging cell output voltage and being not more than predefined magnitude of voltage, can specifically be used to obtain the parameter of boosting of described electric power output voltage correspondence, and send the boost signal that comprises the described parameter of boosting.With the parameter of boosting is that duty ratio is an example, logical circuit 301 calculates corresponding duty ratio (computing formula: Vo=Vi/ (1-D) according to detected cell output voltage value and the required operating voltage of circuit working, wherein Vo is the required operating voltage of circuit working, Vi is detected cell output voltage value, D is a duty ratio), thus obtain to boost parameter.Logical circuit 301 also can be searched the duty ratio of the voltage range correspondence at this detected cell output voltage value place, thereby obtain to boost parameter, the corresponding relation of this each voltage range and duty ratio is stored in the memory module of electronic product in advance, memory module such as single-chip microcomputer in the logical circuit 301, when logical circuit 301 detects cell output voltage and is not more than predefined magnitude of voltage, can search the duty ratio of this detected cell output voltage value correspondence.Logical circuit 301 can also be according to the variable voltage signal of detected cell output voltage correspondence, obtain the duty ratio of this variable voltage signal correspondence, such as the predefined magnitude of voltage difference of each testing circuit in the logical circuit 301, single-chip microcomputer in the logical circuit 301 can be known the pairing duty ratio of this pin according to the pin that receives variable voltage signal, and these corresponding relations also set in advance and store certainly.Booster circuit 302 can be according to the boost signal that includes duty ratio that the receives processing of boosting accordingly like this.
In order more to clearly demonstrate the described device of the embodiment of the invention; so that need not creative work, those skilled in the art can implement the electric power controller that present embodiment provides; by an example electric power controller is elaborated; need point out once more; the scheme of enumerating is exemplary, can not be with it as the restriction to protection range.
As shown in Figure 4, Fig. 4 is a kind of circuit diagram of electric power controller, can know by Fig. 4 and to find out that this electric power controller mainly is made up of logical circuit 401 and booster circuit 402, wherein logical circuit 401 mainly is made up of testing circuit 411 and control circuit 412, this testing circuit 411 is by two resistance R 7, R12, a voltage-stabiliser tube VD1 and a controllable silicon D4 form, the resistance R 7 of less resistance and the positive pole that is connected to battery after voltage-stabiliser tube VD1 negative electrode is connected again with controllable silicon D4, because but voltage-stabiliser tube VD1 is the diode of ability conducting under certain voltage, so the conducting voltage of Xuan Ding voltage-stabiliser tube VD1 promptly can be regarded as predefined magnitude of voltage as required, the conducting voltage of the voltage-stabiliser tube VD1 that chooses in this example is 3.3V, the negative electrode of the controllable silicon D4 ground connection of connecting with another big resistance R 12, control circuit 412 mainly is a single-chip microcomputer, this single-chip microcomputer can be for controlling the chip of whole electronic product, it also can be an independently chip, this single-chip microcomputer is connected with controllable silicon D4 negative electrode, be used to receive the high-low level signal of controllable silicon D4 cathode terminal, when being higher than 3.3V such as output voltage when battery, voltage-stabiliser tube VD1 ends, controllable silicon D4 negative electrode is a high level, and output voltage is given circuit supply through diode D2 to output; When the output voltage of battery is equal to or less than 3.3V, voltage-stabiliser tube VD1 conducting, controllable silicon D4 negative electrode is a low level.The output of this single-chip microcomputer is connected with booster circuit 402, this booster circuit 402 mainly comprises resistance R 8, energy storage inductor L1, NPN type triode V4, diode D3 and capacitor C 6, resistance R 8 one ends are connected with the battery output, other end series connection accumulation inductance L 1, the collector electrode of NPN type triode V4 links to each other with energy storage inductor, and base stage links to each other with the output of single-chip microcomputer, grounded emitter, thus the branch road that boosts formed with resistance R 8 and energy storage inductor L1.And capacitor C 6 one end ground connection, the other end is connected with output, diode D3 anode links to each other with energy storage inductor L1, negative electrode is connected with output, thereby with capacitor C 6 and resistance R 8, energy storage inductor L1 forms the power supply branch road together, send according to the low level that receives when single-chip microcomputer (this duty ratio is a predefined parameter) behind the pulse-modulated signal of certain duty ratio, NPN type triode V4 is in high level conducting in the pairing time, energy storage inductor L1 in the feasible branch road that boosts gathers electric energy according to the voltage of battery output, when NPN type triode V4 ends, the electric energy that gathers on the energy storage inductor L1 is released in the capacitor C 6 by diode D3, treats to form after the capacitor C 6 accumulation of energy filtering operating voltage and exports to circuit supply to output.
In the entire circuit of electronic product, need several power circuits just can dispose the booster circuit of corresponding quantity, so can realize power management whole electronic product.So the electric power controller that present embodiment provides can start boost function when cell output voltage is low, the output voltage that has only less dump energy battery is risen to the required operating voltage of operating circuit, need not when battery dump energy drives operating circuit inadequately, to change battery like this, make full use of remaining electric weight in the battery and continue to drive circuit in the primary electron product, make the primary electron product still can normally use, really prolonged the useful life of battery.
Because this electric power controller goes for various with in the battery powered electronic product, so the embodiment of the invention also provides a kind of electronic equipment, as shown in Figure 5, the electronic functionalities structured flowchart that Fig. 5 provides for the embodiment of the invention, this electronic equipment comprises power device 51 as shown in Figure 5, the electric power controller 53 that battery 52 and the foregoing description provide, this electric power controller 53 wherein, be used to judge whether the output voltage of battery 52 is not more than predefined magnitude of voltage, be not more than predefined magnitude of voltage if judge battery 52 output voltages, then send boost signal, export power device 51 to after according to boost signal battery 52 output voltages being risen to operating voltage.The technical scheme that the technical scheme of this electric power controller 53 can provide in conjunction with reference the foregoing description does not repeat them here.
Embodiment of the invention type of electronic device can be various electronic equipments such as remote controller, portable terminal, electronic toy, three-dimensional liquid crystal display glasses, portable audio and video player.
The method of the power management that the embodiment of the invention provides, device and electronic equipment can make full use of remaining electric weight in the battery and continue to drive circuit operate as normal in the primary electron product, accurate booster tension particularly, so not only prolonged the useful life of battery, reduced and changed the number of times and the cost of battery, and reduced waste of electric energy.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a method for managing power supply is characterized in that, described method comprises:
Whether the output voltage that detects power supply is not more than predefined magnitude of voltage, if detected electric power output voltage is not more than predefined magnitude of voltage, then sends boost signal;
Export after according to boost signal described output voltage being risen to operating voltage.
2. method according to claim 1 is characterized in that, described according to boost signal described output voltage is risen to export after the operating voltage comprise:
By described boost signal described electric power output voltage is boosted;
After the end of boosting, become operating voltage to export the voltage-regulation that promotes.
3. method according to claim 1 is characterized in that, and is described if detected electric power output voltage is not more than predefined magnitude of voltage, then sends boost signal and comprises:
If detected electric power output voltage is not more than predefined magnitude of voltage, then obtain the parameter of boosting of described output voltage correspondence;
Transmission comprises the boost signal of the described parameter of boosting.
4. method according to claim 3, it is characterized in that, described according to boost signal described output voltage is risen to export after the operating voltage be specially: according to the parameter of boosting in the described boost signal, export after described output voltage risen to operating voltage.
5. an electric power controller is characterized in that, described device comprises:
Logical circuit is used to judge whether the output voltage of power supply is not more than predefined magnitude of voltage, if judging electric power output voltage is not more than predefined magnitude of voltage, then sends boost signal;
Booster circuit is exported after the boost signal that is used for sending according to described logical circuit rises to operating voltage with described electric power output voltage.
6. device according to claim 5 is characterized in that, described logical circuit comprises:
Testing circuit, whether the output voltage that is used to detect power supply is not more than predefined magnitude of voltage, if detected electric power output voltage is not more than predefined magnitude of voltage, then sends variable voltage signal;
Control circuit, the variable voltage signal that is used for sending according to described testing circuit sends boost signal.
7. device according to claim 6 is characterized in that, described booster circuit comprises:
The branch road that boosts is used for after the boost signal conducting that is received described electric power output voltage being boosted;
The power supply branch road is used for after the described branch road that boosts ends, and the voltage-regulation that the described branch road that boosts is promoted becomes operating voltage to export.
8. device according to claim 5, it is characterized in that, described logical circuit specifically is used to obtain the parameter of boosting of described electric power output voltage correspondence after judging electric power output voltage and being not more than predefined magnitude of voltage, and sends the boost signal that comprises the described parameter of boosting.
9. an electronic equipment is characterized in that, described electronic equipment comprises any described electric power controller as claim 5-8.
10. electronic equipment according to claim 9 is characterized in that, described type of electronic device comprises: remote controller or portable terminal or electronic toy or three-dimensional liquid crystal display glasses or portable audio and video player.
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| CN106410871B (en) * | 2015-07-17 | 2019-01-25 | 联芯科技有限公司 | Power-supply management system and method |
| CN106843027A (en) * | 2015-11-25 | 2017-06-13 | 凌通科技股份有限公司 | Single battery infrared ray circuit and use its remote control |
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| CN105610222A (en) * | 2016-03-01 | 2016-05-25 | 中南民族大学 | Low-voltage emergency power supply circuit and emergency power supply method for battery unit |
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| CN101834319B (en) | 2013-02-27 |
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Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: Hisense Video Technology Co.,Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: HISENSE ELECTRIC Co.,Ltd. |