CN100339794C - Power supply management device and method for product supplied by battery - Google Patents
Power supply management device and method for product supplied by battery Download PDFInfo
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- CN100339794C CN100339794C CNB031786952A CN03178695A CN100339794C CN 100339794 C CN100339794 C CN 100339794C CN B031786952 A CNB031786952 A CN B031786952A CN 03178695 A CN03178695 A CN 03178695A CN 100339794 C CN100339794 C CN 100339794C
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Abstract
The present invention relates to a device and a method for managing a power supply of a battery powered product, wherein a battery is used for supplying electricity to the component of the battery powered product, and the memory of the battery powered product provides a flag which can be set into a first value and a second value. When the battery powered product is turned on, the flag is firstly read, and the value of the flag is judged; if the value of the flag is the first value, the battery powered product can not be turned on, and the value of the flag is set into the second value; if the value of the flag is the second value, the flag is set into the first value, the components of the battery powered product is orderly turned on, and the flag is set into the second value after all the components are normally turned on; thus, after the battery powered product is turned on again because of insufficient voltage at the first time, the restarting phenomenon can be avoided by flag judgment when the battery powered product is turned on again.
Description
Technical field
The invention relates to a kind ofly, refer to a kind of electric power controller and method that is applicable to the powered battery product especially with battery powered electronic product.
Background technology
Development along with electronics technology, all kinds of portable electronic products are general gradually, for example, digital still camera (Digial Camera), personal digital assistant (PDA), palmtop computer etc., the small-sized electronic installation of this kind generally is with the required electric power of its operation of battery supplied, the electric power of right battery will reduce with the time of using, therefore, required for the operation of the enough supplies electrons products of the electric power of guaranteeing battery, the powered battery product can detect the electric power of battery earlier after start, if electric power is enough then opened the power supply of critical part one by one, and between the power supply of every unlatching one part, detect one-shot battery electric power,, then directly shut down if detect power shortage.Yet, for the relatively poor battery of characteristic, the phenomenon that aforesaid mode may cause the shutdown constantly of electronic product to start shooting again, the voltage of reference battery shown in Figure 1 is with the curve map of load change, wherein, at the beginning of start (t0), the voltage of battery is V0, and along with the power supply of opening critical part, the voltage of battery descends gradually, suppose when t1 to open a part of power consumption (for example LCD module of digital still camera) comparatively, because the characteristic of battery is relatively poor, will produce sizable potential drop this moment, so system will detect power shortage and directly shut down, but the voltage of the battery that this characteristic of shutdown back is not good gos up again (t2), and then causes starting shooting again, so circulates and causes the phenomenon of start again of shutdown constantly.
Summary of the invention
The fundamental purpose of invention is that a kind of electric power controller and method that is used for the powered battery product is being provided, so that can avoid the not good battery of characteristic start shooting when low-voltage phenomenon that the system that causes constantly shuts down and to start shooting.
According to a characteristic of the present invention, the electric power controller that is used for the powered battery product that is proposed comprises: a battery, and it provides an electric power; An electric power detecting unit is in order to detect the electric power of this battery; A direct supply regulator is the power supply of various different voltages in order to the power conversions with battery, with the required electric power of part running of supply electronic product; One flag, it can be set to first value and second value; An and microprocessor, it reads flag when start, as flag is first value, then do not start shooting and flag is made as second value, as flag is second value, then flag is made as first value, again the part of unlocking electronic product in regular turn, and after the whole parts of normal unlatching, again flag is made as second value.
According to another characteristic of the present invention, the method for managing power supply that is used for the powered battery product that is proposed comprises step: (A) open this powered battery product; (B) read flag, and interpretation flag target value; (C) if the flag target value is first value, do not start shooting, and the flag target value is made as second value; And (D) be second value as the flag target value, then flag is made as first value, the part of unlocking electronic product in regular turn again, and when normal open whole parts after, again flag is made as second value.
Description of drawings
Fig. 1 is the voltage of the battery curve map with load change;
Fig. 2 is the Organization Chart that is used for the electric power controller of powered battery product of the present invention;
Fig. 3 is the process flow diagram that is used for the method for managing power supply of powered battery product of the present invention.
Embodiment
For more understanding technology contents of the present invention, be described as follows especially exemplified by a preferred embodiment.Relevant electric power controller and the method that is used for the powered battery product of the present invention, please be earlier with reference to the Organization Chart of electric power controller shown in Figure 2, it includes battery 21, electric power detecting unit 22, microprocessor 23, direct supply regulator 24 (DC to DC regulator) and non-with the property lost storer 25.Wherein, battery 21 is the required electric power of part running of supplies electrons product, for example, microprocessor 23, storer 25, and other parts are (as the LCD module of numerical digit camera, sensor etc.), this electric power detecting unit 22 is in order to detect the electric power of battery 21, successfully start shooting and during normal operation at electronic product, this direct supply regulator 24 is the power supply of various different voltages with the power source conversion of battery 21, running with the supply electronic product is required, and this electric power detecting unit 22 continues to detect the electric power of battery 21, with when the power shortage, notice microprocessor 23 cuts out this direct supply regulator 24 and stops power supply.
Aforesaid non-be preferably to be a flash memory with the property lost storer 25, a configurable bit is used as a shutdown record flag 251 in this storer, wherein, the initial value of this flag 251 is 0xff, in the present invention, be to indicate last time with this flag target value whether shutdown is the shutdown of the power shortage in normal shutdown or the boot program, in this preferred embodiment, the value of flag 251 be 0xff representative last time shutdown be normal shutdown, the value of flag 251 be the 0x55 representative last time shutdown be the shutdown of the power shortage in the boot program.
When aforesaid electronic product is started shooting, in the lump with reference to shown in Figure 3, battery 21 is at first powered and is given microprocessor 23, microprocessor 23 reads non-with the flag 251 (step S301) in the property the lost storer 25 earlier, and the value of interpretation flag 251 (step S302), if the flag target value is 0x55, represent that then previous shutdown is the shutdown of the power shortage in the boot program, no longer start shooting this moment, and the flag target value is made as 0xff (step S303), but so that for normal boot-strap behind the replacing battery, again with system closing (step S304).
Judge that as step S302 the flag target value is not 0x55, represent that then previous shutdown is a normal shutdown, at this moment, flag 251 is made as 0x55 (step S305), the part of unlocking electronic product (step S306) in regular turn again, after the whole parts of normal unlatching (step S307), again flag 251 is made as 0xff (step S308), and carry out the control program (step S309) of electronic product, until the user with system closing (step S310), and owing to flag 251 has been made as 0xff at step S308, therefore, when starting shooting again next time, step S302 will judge that flag 251 values are not 0x55, and can start shooting.
Yet, characteristic as battery 21 is not good, when the part of unlocking electronic product in regular turn (step S306), as not opening (step S307) in whole parts as yet, the power shortage of battery, then system may restart, at this moment, because formerly step S305 is made as 0x55 with flag 251 in advance, even, be 0x55 because step S302 will judge flag 251 values, and can not start shooting so system starts shooting again, therefore, can avoid the not good battery of characteristic constantly shut down the again phenomenon of start of the system that causes of when low-voltage, starting shooting.
By above explanation as can be known, in electric power controller and the method that is used for the powered battery product of the present invention, by setting a flag and change the flag target value in the property lost storer in the specific time non-, make in start for the first time because undertension and after restarting, secondary start can by flag judge and directly with this repeated priming now as stopping.
The foregoing description only is to give an example for convenience of description, and the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (6)
1. an electric power controller that is used for the powered battery product is characterized in that, comprising:
A battery, in order to electric power to be provided:
An electric power detecting unit is in order to detect the electric power of this battery;
A direct supply regulator is the power supply of various different voltages in order to the power conversions with battery, with the required electric power of part running of supply powered battery product;
A nonvolatile memory, this nonvolatile memory provide the bit group with as flag, and this flag is in order to be set at first value and second value; And
One microprocessor, when start, read flag, as flag is first value, then do not start shooting and flag is made as second value, as flag is second value, then flag is made as first value, opens the part of powered battery product more in regular turn, and after the whole parts of normal unlatching, again flag is made as second value.
2. the electric power controller that is used for the powered battery product as claimed in claim 1 is characterized in that, described this nonvolatile memory is a flash memory.
3. the electric power controller that is used for the powered battery product as claimed in claim 2 is characterized in that, described this first value is 0x55, and this second value is 0xff.
4. method for managing power supply that is used for the powered battery product, it is characterized in that, this powered battery product provides a flag that can be set to first value and second value for its part, the storer of powered battery product by a powered battery, and the method comprising the steps of:
The first step is for opening this powered battery product;
Second step is for reading this flag, and interpretation flag target value;
If the 3rd step was first value for the flag target value, does not start shooting, and the flag target value is made as second value; And
The 4th step then was made as flag first value for being second value as the flag target value, opened the part of powered battery product more in regular turn, and after the whole parts of normal unlatching, flag was made as second value again.
5. the method for managing power supply that is used for the powered battery product as claimed in claim 4 is characterized in that it also comprised for the 5th step, for carrying out the control program of this powered battery product.
6. the method for managing power supply that is used for the powered battery product as claimed in claim 4 is characterized in that, described this first value is 0x55, and this second value is 0xff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031786952A CN100339794C (en) | 2003-07-22 | 2003-07-22 | Power supply management device and method for product supplied by battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031786952A CN100339794C (en) | 2003-07-22 | 2003-07-22 | Power supply management device and method for product supplied by battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1571240A CN1571240A (en) | 2005-01-26 |
| CN100339794C true CN100339794C (en) | 2007-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031786952A Expired - Fee Related CN100339794C (en) | 2003-07-22 | 2003-07-22 | Power supply management device and method for product supplied by battery |
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| Country | Link |
|---|---|
| CN (1) | CN100339794C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109271010A (en) * | 2017-07-18 | 2019-01-25 | 技嘉科技股份有限公司 | RTC battery detection method and the computer apparatus for using this method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5230074A (en) * | 1991-01-25 | 1993-07-20 | International Business Machines Corporation | Battery operated computer power management system |
| CN1282897A (en) * | 1997-05-27 | 2001-02-07 | 陈树锦 | Intelligent phase-advancing power supply management system for computer |
-
2003
- 2003-07-22 CN CNB031786952A patent/CN100339794C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5230074A (en) * | 1991-01-25 | 1993-07-20 | International Business Machines Corporation | Battery operated computer power management system |
| CN1282897A (en) * | 1997-05-27 | 2001-02-07 | 陈树锦 | Intelligent phase-advancing power supply management system for computer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109271010A (en) * | 2017-07-18 | 2019-01-25 | 技嘉科技股份有限公司 | RTC battery detection method and the computer apparatus for using this method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1571240A (en) | 2005-01-26 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Kinpo Electronics (China) Co., Ltd. Assignor: Kinpo Electronic Industry Co., Ltd. Contract fulfillment period: 2007.9.26 to 2012.9.25 contract change Contract record no.: 2008990001586 Denomination of invention: Power supply management device and method for product supplied by battery Granted publication date: 20070926 License type: Exclusive license Record date: 20081226 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.9.26 TO 2012.9.25; CHANGE OF CONTRACT Name of requester: JINBAO ELECTRON ( CHINA) CO., LTD. Effective date: 20081226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070926 Termination date: 20150722 |
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| EXPY | Termination of patent right or utility model |