CN102437383B - Circuit implementing method for reducing static power consumption of lithium battery - Google Patents
Circuit implementing method for reducing static power consumption of lithium battery Download PDFInfo
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- CN102437383B CN102437383B CN201110331442.0A CN201110331442A CN102437383B CN 102437383 B CN102437383 B CN 102437383B CN 201110331442 A CN201110331442 A CN 201110331442A CN 102437383 B CN102437383 B CN 102437383B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention provides a circuit implementing method for reducing the static power consumption of a lithium battery. Structurally, in the event that a notebook computer is in a power-off state without an adapter, a Hall sensor is used to automatically turn off 3.3VSB standby voltage through magnetoelectric conversion by means of simple cover closing operation, so that the static power consumption of the lithium battery after the notebook computer is powered off is reduced. compared with the prior art, the circuit implementing method for reducing the static power consumption of the lithium battery has the advantages of greatly reducing the static power consumption of the lithium battery when the notebook computer is in the power-off state, prolonging the electric quantity holding time of the lithium battery and reducing the over-discharge risks of the lithium battery.
Description
Technical field
The present invention relates to a kind of battery protecting circuit, specifically a kind ofly extend the circuit implementing method that static power consumption of lithium battery was held time, reduced to electric quantity of lithium battery.
Background technology
At present, lithium battery is widely used in notebook computer product because of advantages such as its capacity are large, volume is little, security is high, but simultaneously a lot of notebook users also run into lithium battery, crosses the problem of putting.General regular lithium battery prevents Cross prevention function, meeting automatic cutout in the situation that lithium battery voltage is too low, and lithium battery is crossed amplification most cases can not cause the damage of lithium battery, but internal circuit is locked.Although cross the lithium battery of putting, can recover by high voltage constant-current charge operation inconvenience for domestic consumer.In order to prevent that lithium battery from crossing, putting, need to must fill once electricity to lithium battery every 2～3 months, therefore from user's multi-angle, consider, reduce the quiescent dissipation of notebook computer lithium battery after shutting down, is the key factor that must consider in notebook computer design.
Summary of the invention
Technical assignment of the present invention is in the deficiencies in the prior art, and a kind of circuit implementing method that static power consumption of lithium battery was held time, reduced to electric quantity of lithium battery that extends is provided.
Technical scheme of the present invention realizes in the following manner, this a kind of circuit implementing method that reduces static power consumption of lithium battery, its structure comprises DC-DC integrated circuit U1, U2, voltage input is converted to 5VSB by U1, through U2, transfer normal 3.3VSB standby voltage to again, be also connected with OR circuit on described U2, whether OR circuit detects and starts shooting, whether adapter is inputted, three kinds of states of closing lid whether, when start, adapter are inputted, the arbitrary state of closing lid is not set up, can not close U2; At off-mode, while setting up without adapter input, closing lid three simultaneously, close U2.
Described OR circuit is one or three input OR circuit, and at input end connection input adapter input indicative signal, system power supply voltage, the Hall element of this OR circuit, the output terminal of this OR circuit is connected with U2.
Described OR circuit detects whether there is adapter input by adapter input indicative signal, and while having adapter input, this signal is high; While there is no adapter input, signal is low.
Described OR circuit determines that by system power supply voltage whether notebook is at open state, and this system power supply voltage is 5V.
Described OR circuit determines whether closing lid by Hall element, and during closing lid, Hall element is output as low level.
Described Hall element is single magnetic pole Hall element AH661, and its corresponding magnet is placed on notebook and covers.
The beneficial effect that the present invention compared with prior art produced is:
A kind of circuit implementing method that reduces static power consumption of lithium battery of the present invention is by increasing by low OR circuit and a Hall element, because this two parts circuit is microampere order, power consumption is extremely low, the present invention is applicable to the notebook computer that quiescent dissipation is larger, especially the obsolete notebook computer product of most time, greatly reduce the quiescent dissipation of notebook computer lithium battery under off-mode, extend electric quantity of lithium battery and hold time, reduce lithium battery and cross the danger of leaking informaton.
Accompanying drawing explanation
Accompanying drawing 1 is the structured flowchart that the present invention realizes circuit.
Embodiment
Below in conjunction with accompanying drawing, a kind of circuit implementing method that reduces static power consumption of lithium battery provided by the present invention is described in detail below.
For greatly reducing the quiescent dissipation of notebook computer lithium battery under off-mode, extend electric quantity of lithium battery and hold time, reduce lithium battery and cross the danger of leaking informaton.As shown in Figure 1, a kind of circuit implementing method that reduces static power consumption of lithium battery is provided, its structure comprises DC-DC integrated circuit U1, U2, voltage input is converted to 5VSB by U1, through U2, transfer normal 3.3VSB standby voltage to again, be also connected with OR circuit on described U2, whether OR circuit detects and starts shooting, whether adapter is inputted, three kinds of states of closing lid whether, when start, adapter are inputted, the arbitrary state of closing lid is not set up, can not close U2; At off-mode, while setting up without adapter input, closing lid three simultaneously, close U2.
Described OR circuit is one or three input OR circuit, and at input end connection input adapter input indicative signal, system power supply voltage, the Hall element of this OR circuit, the output terminal of this OR circuit is connected with U2; Described OR circuit detects whether there is adapter input by adapter input indicative signal, and while having adapter input, this signal is high; While there is no adapter input, signal is low; Described OR circuit determines that by system power supply voltage whether notebook is at open state, and this system power supply voltage is 5V; Described OR circuit determines whether closing lid by Hall element, and during closing lid, Hall element is output as low level, and this Hall element is single magnetic pole Hall element AH661, and its corresponding magnet is placed on notebook and covers.
Embodiment
As shown in Figure 1, " SYS_LOAD " is notebook adapters or lithium battery input voltage, and U1, U2 are DC-DC integrated circuit, and SYS_LOAD is converted to 5VSB by U1, then transfers normal 3.3VSB standby voltage to through U2.5VSB and 3.3VSB are the standby voltage of notebook, as long as notebook computer has adapter or lithium battery power supply, even in shutdown situation, these two kinds of voltages also can exist always, and lithium battery can be all the time in power consumption state.The present invention adds two parts on the basis of general notebook computer design: micro-power consumption Hall switch circuit and three input OR circuit, and this two parts circuit is all at microampere order, and power consumption is very low, and its circuit connection structure is as accompanying drawing 1 dotted line frame part, wherein:
" ACP " is adapter input indicative signal, and when having adapter input, this signal is high, otherwise is low, and object is to detect the current adapter input that whether has;
" 5V ", for the rear system power supply voltage of start, determines that by this voltage whether notebook is at open state;
AH661 is Hall element, and magnet is placed on to the position that notebook upper cover is suitable, and when closing lid, it is low that magnetoelectricity conversion is output as Hall element.
OR circuit need to detect start, have adapter input, these three kinds of states of closing lid not, when wherein any state is set up, can not close U2, only three, be false simultaneously, off-mode, without closing lid under adapter input condition, just can close U2.
When user need to use notebook computer, start the moment of upper cover, the output of Hall element becomes high level from low level, and U2 is enabled, and 3.3VSB normally exports, and can not affect the normal startup of notebook computer.
Claims (6)
1. a circuit implementing method that reduces static power consumption of lithium battery, its structure comprises DC-DC integrated circuit U1, U2, voltage input is converted to 5VSB by U1, through U2, transfer normal 3.3VSB standby voltage to again, it is characterized in that being also connected with on described U2 OR circuit, whether OR circuit detects and starts shooting, whether adapter is inputted, three kinds of states of closing lid whether, when start, adapter input, when the arbitrary state of closing lid is not set up, can not close U2; At off-mode, while setting up without adapter input, closing lid three simultaneously, close U2.
2. a kind of circuit implementing method that reduces static power consumption of lithium battery according to claim 1, it is characterized in that described OR circuit is one or three input OR circuit, input end in this OR circuit connects input adapter input indicative signal, system power supply voltage, Hall element, and the output terminal of this OR circuit is connected with U2.
3. a kind of circuit implementing method that reduces static power consumption of lithium battery according to claim 2, is characterized in that described OR circuit detects whether there is adapter input by adapter input indicative signal, and while having adapter input, this signal is high; While there is no adapter input, signal is low.
4. a kind of circuit implementing method that reduces static power consumption of lithium battery according to claim 2, is characterized in that described OR circuit determines that by system power supply voltage whether notebook is at open state, and this system power supply voltage is 5V.
5. a kind of circuit implementing method that reduces static power consumption of lithium battery according to claim 2, is characterized in that described OR circuit determines whether closing lid by Hall element, and during closing lid, Hall element is output as low level.
6. a kind of circuit implementing method that reduces static power consumption of lithium battery according to claim 5, is characterized in that described Hall element is single magnetic pole Hall element AH661, and its corresponding magnet is placed on notebook and covers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110331442.0A CN102437383B (en) | 2011-10-27 | 2011-10-27 | Circuit implementing method for reducing static power consumption of lithium battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110331442.0A CN102437383B (en) | 2011-10-27 | 2011-10-27 | Circuit implementing method for reducing static power consumption of lithium battery |
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| CN102437383A CN102437383A (en) | 2012-05-02 |
| CN102437383B true CN102437383B (en) | 2014-01-15 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424706B (en) * | 2012-05-22 | 2015-12-16 | 中兴通讯股份有限公司 | A kind of battery identification system of electronic equipment and method thereof |
| CN104007976A (en) * | 2014-06-06 | 2014-08-27 | 山东超越数控电子有限公司 | Method for solving LID function of LINUX system of notebook computer |
| CN104283261B (en) * | 2014-09-29 | 2017-01-25 | 捷开通讯科技(上海)有限公司 | Circuit avoiding static power consumption |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6088806A (en) * | 1998-10-20 | 2000-07-11 | Seiko Epson Corporation | Apparatus and method with improved power-down mode |
| CN101038563A (en) * | 2006-03-17 | 2007-09-19 | 联想(北京)有限公司 | Method and device remotely automatic recovering CMOS date with network |
| CN201122849Y (en) * | 2007-12-05 | 2008-09-24 | 沈阳东软医疗***有限公司 | Dynamic monitoring apparatus for inside DC-DC unit of monitor |
| CN101340187A (en) * | 2007-07-02 | 2009-01-07 | 鸿富锦精密工业（深圳）有限公司 | Non-contact type electronic switch |
-
2011
- 2011-10-27 CN CN201110331442.0A patent/CN102437383B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6088806A (en) * | 1998-10-20 | 2000-07-11 | Seiko Epson Corporation | Apparatus and method with improved power-down mode |
| CN101038563A (en) * | 2006-03-17 | 2007-09-19 | 联想(北京)有限公司 | Method and device remotely automatic recovering CMOS date with network |
| CN101340187A (en) * | 2007-07-02 | 2009-01-07 | 鸿富锦精密工业（深圳）有限公司 | Non-contact type electronic switch |
| CN201122849Y (en) * | 2007-12-05 | 2008-09-24 | 沈阳东软医疗***有限公司 | Dynamic monitoring apparatus for inside DC-DC unit of monitor |
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| CN102437383A (en) | 2012-05-02 |
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