CN101414485B - Power supply - Google Patents
Power supply Download PDFInfo
- Publication number
- CN101414485B CN101414485B CN2007101808754A CN200710180875A CN101414485B CN 101414485 B CN101414485 B CN 101414485B CN 2007101808754 A CN2007101808754 A CN 2007101808754A CN 200710180875 A CN200710180875 A CN 200710180875A CN 101414485 B CN101414485 B CN 101414485B
- Authority
- CN
- China
- Prior art keywords
- power supply
- power
- electrically connected
- nonvolatile memory
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Power Sources (AREA)
Abstract
A power supply device is applicable to an electronic device which is equipped with a non-volatile memory and supplies power to a power supply circuit of the non-volatile memory. The power supply device comprises a power consumer unit and a control unit, wherein, the power consumer is used for providing a power release path of the non-volatile memory, and the control unit is electrically connected with the power supply circuit, the non-volatile memory and the power consumer unit respectively, and the control unit is provided with a first connection terminal, a switching terminal and a second connection terminal, and is used for selectively and electrically being connected with the first connection terminal or the second connection terminal by the switching terminal, when the switching terminal is electrically connected with the first connection terminal, the power release path between the power consumer unit and the non-volatile memory is disconnected to ensure the normal operation of the non-volatile memory, and when the switching terminal is electrically connected with the second connection terminal, the power release path between the power consumer unit and the non-volatile memory is connected so as to perform discharge operations on the non-volatile memory by the power consuming unit, thus solving the defects in the prior art.
Description
Technical field
The present invention relates to a kind of power supply control technology, more detailed it, relate to a kind of electric supply installation of power supply of the Nonvolatile memory that is applied to electronic installation.
Background technology
Great majority for example electronic installation such as PC, server inside all dispose Nonvolatile memory, for example complementary metal oxide semiconductor (CMOS) (Complementary Metal-OxideSemiconductor; CMOS) and non-volatile random access memory (Non-VolatileRandom Access Memory; NVRAM) etc., this Nonvolatile memory is provided with important informations such as parameter in order to for example hard disk configuration information, the BIOS that store and this electronic installation operation is closely bound up, so, take supply at quarter working power and give this Nonvolatile memory, do not lose to guarantee the information that Nonvolatile memory is preserved.
Seeing also Fig. 1, is the working power feed circuit synoptic diagram that shows this Nonvolatile memory.As shown in the figure, these feed circuit 1 comprise: connect first power supply unit 11 of putting a battery, give this Nonvolatile memory 3 with first working power that 3 volts (V) are provided; Connect second power supply unit 13 of putting a system power supply, to provide second working power of 3.3V to give this Nonvolatile memory 3 after putting this system power supply in connecing; And the switch unit (these feed circuit 1 adopt diode) 15 that electrically connects this first and second power supply unit 11,13 respectively.Particularly, as shown in Figure 1, the anode of this diode 15 (anode) electrically connects with this first power supply unit 11, its negative electrode (cathode) electrically connects with this second power supply unit 13, do not put this system power supply and when exporting electronegative potential (0V) power supply signal to connect in this second power supply unit 13, because this first power supply unit 11 provides first working power of this 3V, make these diode 15 conductings, and then connect power delivery path between this first power supply unit 11 and this Nonvolatile memory 3, with by these first power supply unit, 11 power supplies; And connect in this second power supply unit 13 and to put this system power supply and when exporting noble potential (3.3V) power supply signal, make the cathode terminal current potential (current potential is 3.3V) of this diode 15 than anode tap current potential (current potential is 3V) height, and make this diode 15 end, at this moment, then make the power source supply end of this Nonvolatile memory 3 switch to this second power supply unit 13 by this first power supply unit 11 by this diode 15, even put system power supply to realize that this electronic installation does not connect thus, also can be by the powered battery of internal configurations, in case and this electronic installation connect put system power supply after, can block the electric weight supply of this internal configurations battery, with the kwh loss of corresponding this battery of saving.
But, sometimes, need reasons such as replacement password for the system failure of getting rid of this electronic installation or because of forgeing above-mentioned Nonvolatile memory password, need carry out erasing of information to above-mentioned Nonvolatile memory 3, then must be to the operation of discharging of above-mentioned Nonvolatile memory 3.Principle of work in conjunction with above-mentioned feed circuit 1, when desire is discharged to this Nonvolatile memory 3, need at first shut down and cut off the electricity supply, so that this second power supply unit 13 disconnects and the electric connection of system power supply, then, the cabinet lid of this electronic installation of removal, on this electronic device host plate, unload this internal configurations battery, at this moment, these Nonvolatile memory 3 no any power source supplies, can finish this Nonvolatile memory 3 discharge operations by natural power consumption mode, remove the information of Nonvolatile memory 3 thus.
But, carry out the Nonvolatile memory discharge mode by the way, more loaded down with trivial details in the operation, particularly along with the development of electronics miniaturization, the element closeness promotes on the motherboard, and then the battery placement space also becomes more and more little, so, desire from this motherboard removal battery, more and more difficulty also seems.In addition, owing to adopt nature power consumption mode, the speed of this discharge then depends on the configuration of this Nonvolatile memory inside chip element, the general velocity of discharge is slower, and this Nonvolatile memory has dissimilar, correspondingly, the configuration of inside chip element is also different, so, cause discharge time also different, start again when this Nonvolatile memory discharge is incomplete cause the user can't accurately understand discharge time, if then may not removed the situation that totally causes the system boot mistake because of information in this Nonvolatile memory and taken place.
In sum, how a kind of electric supply installation of easy operating is proposed, real in desiring most ardently the technical matters of solution at present.
Summary of the invention
In view of the shortcoming of above-mentioned prior art, fundamental purpose of the present invention is to provide a kind of electric supply installation of easy operating.
Another object of the present invention is to provide a kind of electric supply installation, it is applied in the Nonvolatile memory, to accelerate the velocity of discharge of Nonvolatile memory.
For achieving the above object and other purpose, the invention provides a kind of electric supply installation of power supply of the Nonvolatile memory that is applied to electronic installation, and this Nonvolatile memory comprises a power supply receiving end at least, this electric supply installation comprises: feed circuit have first power input, power output end and are electrically connected at first power supply unit of this first power input; Control module, have first link, second link and switch terminal, wherein, this first link is electrically connected at the power output end of these feed circuit, and this switch terminal is connected in the power supply receiving end of this Nonvolatile memory and in order to switch the electric connection of this power supply receiving end and this first link or this second link; And the power consumption unit, the one end is electrically connected at second link of this control module, the electrical ground connection of its other end.
These feed circuit also comprise: the second source input end; Second electric supply installation is electrically connected at this second source input end; And switch unit, the one end is electrically connected at this first power input, and its other end is electrically connected at this power output end and this second source input end simultaneously.
Wherein, the voltage of this second power supply unit is higher than the voltage of this first power supply unit, and this switch unit is a diode, and the anode of this diode (anode) electrically connects this first power supply unit, and the negative electrode of this diode (cathode) electrically connects this second power supply unit.
In addition, in electric supply installation of the present invention, this power consumption unit is a resistance.The switch terminal of this control module is selector switch (Switch), connects the electrical connection between this Nonvolatile memory and this feed circuit or this power consumption unit for you to choose.Preferably, this selector switch is arranged at this electronic installation outside, so that user's operation.
Again, electric supply installation of the present invention also comprises the first anti-interference module that is electrically connected between these feed circuit and this earth terminal, switches the interference that moment produces in order to eliminate this switch module.Preferably, this anti-interference module is an electric capacity.
Moreover, electric supply installation of the present invention comprises that also the second anti-interference module, one end is electrically connected at the power output end of feed circuit, its other end ground connection, in order to preventing the noise of powering, and the power supply shake when switching of this first power supply unit and this second power supply unit.Preferably, this second anti-interference module also comprises: second electric capacity, and the one end is electrically connected at the power output end of feed circuit, and the electrical ground connection of its other end is in order to provide High frequency filter; The 3rd electric capacity, the one end is electrically connected at the power output end of feed circuit, and the electrical ground connection of its other end is in order to provide low frequency filtering and energy storage.
Than prior art, electric supply installation of the present invention mainly is to increase power consumption module and control module between existing feed circuit and Nonvolatile memory, with when the power supply input path connected by this control module between these feed circuit and this Nonvolatile memory, cut off the power supply release way between this power consumption unit and this Nonvolatile memory, normally move for this Nonvolatile memory, the operational mode of this moment is identical with existing feed circuit powering mode; And when the power supply input path that cuts off by this control module between these feed circuit and this Nonvolatile memory, connect the power supply release way between this power consumption unit and this Nonvolatile memory, with by this power consumption unit to the operation of discharging of this Nonvolatile memory, at this moment, can avoid prior art need cut off the electricity supply and pull down battery, even need to wait for that this Nonvolatile memory inside chip unit slow consumption power supply is with the complicated processes completely of discharging; Moreover, because electric supply installation of the present invention provides a power consumption unit directly to electrically connect this Nonvolatile memory and carries out the discharge operation, the mode of carrying out the nature power consumption by the inner complicated chip unit of this Nonvolatile memory with respect to prior art, can accelerate the velocity of discharge of this Nonvolatile memory relatively, and be easy to control this velocity of discharge.
Description of drawings
Fig. 1 shows that existing feed circuit are applied to the circuit diagram of Nonvolatile memory;
Fig. 2 shows that an embodiment of electric supply installation of the present invention is applied to the configuration schematic diagram of Nonvolatile memory;
Fig. 3 A shows that an embodiment of electric supply installation of the present invention is applied to a concrete circuit state synoptic diagram of implementing of Nonvolatile memory; And
Fig. 3 B shows that an embodiment of electric supply installation of the present invention is applied to another concrete circuit state synoptic diagram of implementing of Nonvolatile memory.
Fig. 4 shows that another embodiment of electric supply installation of the present invention is applied to the configuration schematic diagram of Nonvolatile memory;
Fig. 5 A shows that another embodiment of electric supply installation of the present invention is applied to a concrete circuit state synoptic diagram of implementing of Nonvolatile memory; And
Fig. 5 B shows that another embodiment of electric supply installation of the present invention is applied to another concrete circuit state synoptic diagram of implementing of Nonvolatile memory.
The main element symbol description:
1,1 ' feed circuit
11,11 ' first power supply unit
13,13 ' second power supply unit
15,15 ' switch unit
2 electric supply installations
21 power consumption unit
211 earth terminals
23 control modules
231 first links
233 switch terminal
235 second links
25 first anti-interference modules
251 first electric capacity
26 second anti-interference modules
261 second electric capacity
262 the 3rd electric capacity
3 Nonvolatile memories
The a power output end
B power supply receiving end
C first power input
D second source input end
I1, I2, I1 ', the I2 ' direction of arrow
Embodiment
Below by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantage of the present invention and effect easily by the content that this instructions disclosed.The present invention also can be implemented or be used by other different instantiation, and the every details in this instructions also can be based on different viewpoints and application, carries out various modifications and change under the spirit of the present invention not deviating from.
Seeing also Fig. 2, is to show that an embodiment of electric supply installation of the present invention is applied to the configuration schematic diagram of Nonvolatile memory.As shown in the figure, electric supply installation 2 of the present invention be applied to have Nonvolatile memory 3 and feed circuit 1 ' such as in the electronic installations such as PC or server, this Nonvolatile memory 3 for example is complementary metal oxide semiconductor (CMOS) (Complementary Metal-Oxide Semiconductor for being disposed in this electronic installation; CMOS) or non-volatile random access memory (Non-Volatile Random Access Memory; Unit such as NVRAM).These feed circuit 1 ' are in order to providing working power to give this Nonvolatile memory 3, more detailed it,, electric supply installation 2 of the present invention comprises feed circuit 1 ', power consumption unit 21 and control module 23.Below will cooperate Fig. 3 A and Fig. 3 B that above-mentioned each object of electric supply installation 2 of the present invention is described in detail in the lump.
These feed circuit 1 ' comprise, power output end a, the first power input c and first power supply unit 11 ', first power supply unit wherein, be electrically connected at this first power input c, this first power supply unit 11 ' connects puts a battery, so that being provided, first working power (in present embodiment, this first working power is 3V) gives this storage element 3.Because the power supply the principle of these feed circuit 1 ' is the technology that industry is known, and no longer describes in detail in this.
This power consumption unit 21 electrically connects an earth terminal 211, in order to the power supply release way of this Nonvolatile memory 3 to be provided.Preferably, this power consumption unit 21 is a resistance, and the big I of this resistance determines the velocity of discharge of this Nonvolatile memory 3, that is, resistance is more little, the velocity of discharge is fast more, and discharge time is short more, so, the user can be according to the resistance size of this resistance 21 in the side circuit configuration, learning the time of the required cost of this discharge process, to avoid in the prior art easily causing discharge thoroughly not cause the defective of system boot mistake because of controlling discharge time.In present embodiment, as shown in Figure 3A, this power consumption unit 21 is reached by the parallel connection of two fixed resistances, but not as limit, all resistance configuration of reaching the resistance of desire configuration all belong to application category of the present invention.In other embodiment, this power consumption unit 21 also can be adjustable resistance, for by regulating this resistance to regulate this velocity of discharge, makes the velocity of discharge of this Nonvolatile memory 3 be easy to control.
This control module 23 has respectively and these feed circuit 1 ', this Nonvolatile memory 3, and first link 231 that electrically connects of this power consumption unit 21, switch terminal 233, and second link 235, and provide by this switch terminal 233 and optionally electrically connect, thereby the corresponding power supply input path that switches on or off power delivery that these feed circuit 1 ' provide to this Nonvolatile memory 3 with this first link 231 or this second link 235.Wherein, first link 231 of this control module 23 electrically connects the power output end a (shown in Fig. 3 A and Fig. 3 B) of these feed circuit 1 ', to receive first working power via these feed circuit 1 '.In addition, particularly, the switch terminal 233 of this control module 23 is selector switch (Switch), electrically connect this first link 231 or this second link 235 for you to choose, thereby the electrical connection between this Nonvolatile memory 3 of corresponding connection and this feed circuit 1 ' or this power consumption unit 21, when connect by this switch terminal 233 these first links 231 (that is, these feed circuit 1 ' of corresponding connection are to the power supply input path of this Nonvolatile memory 3) time, then disconnect this selector switch 233 and this second link 235 (that is, cut off the power supply release way between this power consumption unit 21 and this Nonvolatile memory 3), at this moment, the current direction of this electric supply installation 2 direction of arrow I1 as shown in Figure 3A normally moves for this Nonvolatile memory 3; And by this switch terminal 233 connect these second links 235 (that is, power supply release way between this power consumption unit 21 of corresponding connection and this Nonvolatile memory 3) time, then disconnect this switch terminal 233 and this first link 231 (that is, cut off the power supply input path of these feed circuit 1 ') to this Nonvolatile memory 3, at this moment, the direction of arrow I2 of the current direction of this electric supply installation 2 shown in Fig. 3 B is to carry out the discharge operation by 21 pairs of these Nonvolatile memories in this power consumption unit 3.Preferably, this for example is arranged at this electronic installation outside for the switch terminal 233 of selector switch, so that user's operation.Thus, when this electronic installation the system failure occurs or needs factors such as replacement password because of forgeing these Nonvolatile memory 3 passwords, need the operation of discharging of above-mentioned Nonvolatile memory 3, when removing the information that this Nonvolatile memory 3 stores, only need stir this control module 23 connect this switch terminal 233 and this second link 235 (that is, connect the power supply release way between this power consumption unit 21 and this Nonvolatile memory 3), at this moment, cut off the power supply input path of these feed circuit 1 ' to this Nonvolatile memory 3, so, need not to pull up power supply and pull down battery, can finish this Nonvolatile memory 3 discharge operations.
In addition, the present invention also provides first an anti-interference module 25 that is electrically connected between these feed circuit 1 ' and this earth terminal 211, in present embodiment, this first anti-interference module 25 is electrically connected between the power output end a and this earth terminal 211 of these feed circuit 1 ', switch the interference that moment produces in order to eliminate this control module 23, thereby make that this electric supply installation is more reliable and more stable.Preferably, this first anti-interference module 25 is first electric capacity 251.
Seeing also Fig. 4, is to show that another embodiment of electric supply installation of the present invention is applied to the configuration schematic diagram of Nonvolatile memory.As shown in the figure, electric supply installation 2 of the present invention comprises feed circuit 1 ', power consumption unit 21, control module 23, the first anti-interference module 25 and the second anti-interference module 26.Be in: this feed circuit 1 ' different with previous embodiment is to be made of power output end a, the first power input c, second source input end d, first power supply unit 11 ' that is electrically connected at this first power input c, second power supply unit 13 ' that is electrically connected at this second source input end d and switch unit 15 '.Wherein this first power supply unit 11 ' connects and puts a battery, gives this Nonvolatile memory 3 so that first working power (in present embodiment, this first working power is 3V) to be provided; This second power supply unit 13 ' connects puts a system power supply, to provide second working power (in present embodiment, this second working power is 3.3V) to give this Nonvolatile memory 3 in connecing after putting this system power supply; This switch unit 15 ' one end is electrically connected at this first power input c, the other end is electrically connected at this power output end a and this second source input end d simultaneously, when putting this system power supply not connect in this second power supply unit 13 ', provide this first working power to give this Nonvolatile memory 3 by this first power supply unit 11 ', and connect when putting this system power supply in this second power supply unit 13 ', switching to this second power supply unit 13 ' provides this second working power to give this Nonvolatile memory 3, thus, no matter this electronic installation has or not to connect is put system power supply, all guarantee have working power to provide and give this Nonvolatile memory 3, normally move for this Nonvolatile memory 3, in addition, this switch unit 15 ' forms a power output end a with this second power supply unit, 13 ' junction.In present embodiment, the voltage of this second power supply unit is higher than the voltage of this first power supply unit, and this switch unit 15 ' is a diode, its anode is electrically connected at the first power input c of this first power supply unit 11 ', its negative electrode is electrically connected at the second source input end d of this power output end a and this second power supply unit 13 ' simultaneously, when this second power supply unit 13 ' is not powered, this diode current flow, by this first power supply unit, 11 ' power supply, when this second power supply unit, 13 ' power supply, this diode ends, by this second power supply unit, 13 ' power supply.
Hold above-mentionedly, first link 231 of this control module 23 electrically connects the power output end a (shown in Fig. 5 A and Fig. 5 B) of these feed circuit 1 ', to receive first working power and second working power via these feed circuit 1 '.Particularly, the switch terminal 233 of this control module 23 also selects to electrically connect this first link 231 or this second link 235, thereby the electrical connection between this Nonvolatile memory 3 of corresponding connection and this feed circuit 1 ' or this power consumption unit 21, when connect by this switch terminal 233 these first links 231 (that is, these feed circuit 1 ' of corresponding connection are to the power supply input path of this Nonvolatile memory 3) time, then disconnect this switch terminal 233 and this second link 235 (that is, cut off the power supply release way between this power consumption unit 21 and this Nonvolatile memory 3), at this moment, the direction of arrow I1 ' of the current direction of this electric supply installation 2 shown in Fig. 5 A normally moves for this Nonvolatile memory 3; By this switch terminal 233 connect these second links 235 (that is, power supply release way between this power consumption unit 21 of corresponding connection and this Nonvolatile memory 3) time, then disconnect this switch terminal 233 and this first link 231 (that is, cut off the power supply input path of these feed circuit 1 ') to this Nonvolatile memory 3, at this moment, the direction of arrow I2 ' of the current direction of this electric supply installation 2 shown in Fig. 5 B is to carry out the discharge operation by 21 pairs of these Nonvolatile memories in this power consumption unit 3.
What deserves to be mentioned is in addition, these second anti-interference module, 26 1 ends are electrically connected at the power output end a of feed circuit 1 ', its other end ground connection, in order to preventing the noise of powering, and the power supply shake when switching of this first power supply unit 11 ' and this second power supply unit 13 '.Preferably, this second anti-interference module 26 also comprises: second electric capacity 261, one end are electrically connected at the power output end a of feed circuit 1 ', and the electrical ground connection of its other end is in order to provide High frequency filter; The 3rd electric capacity 262, one end are electrically connected at the power output end a of feed circuit 1 ', and the electrical ground connection of its other end is in order to provide low frequency filtering and energy storage.
From the above, electric supply installation of the present invention is to increase power consumption unit and control module between existing feed circuit and Nonvolatile memory, with in the power supply input path connected by this control module between these feed circuit and this Nonvolatile memory time, cut off the power supply release way between this power consumption unit and this Nonvolatile memory, normally move for this Nonvolatile memory, the operational mode of this moment is with to have the feed circuit powering mode now identical; And in the time of the input of the power supply between these feed circuit of cut-out and this Nonvolatile memory path, can this discharge module of corresponding connection and this Nonvolatile memory between the power supply release way, with by this discharge module to the operation of discharging of this Nonvolatile memory, simplified the discharge operation program greatly, and effectively avoid prior art need cut off the electricity supply and pull down battery, even need to wait for that this Nonvolatile memory inside chip unit slow consumption is to discharge complicated processes completely; In addition, because electric supply installation of the present invention provides a power consumption unit directly to electrically connect this Nonvolatile memory and carries out the discharge operation, the mode of carrying out the nature power consumption by the inner complicated chip unit of this Nonvolatile memory with respect to prior art, can accelerate the velocity of discharge of this Nonvolatile memory relatively, and be easy to control this velocity of discharge.
The foregoing description is illustrative principle of the present invention and effect thereof only, but not is used to limit the present invention.Any those skilled in the art all can be under spirit of the present invention and category, and the foregoing description is modified and changed.Therefore, the scope of the present invention should be foundation with the scope of claims.
Claims (12)
1. an electric supply installation is applied to the power supply of the Nonvolatile memory of electronic installation, and this Nonvolatile memory comprises a power supply receiving end at least, and this electric supply installation comprises:
Feed circuit have first power input, power output end and are electrically connected at first power supply unit of this first power input;
Control module, have first link, second link and switch terminal, wherein, this first link is electrically connected at the power output end of these feed circuit, and this switch terminal is connected in the power supply receiving end of this Nonvolatile memory and in order to switch the electric connection of this power supply receiving end and this first link or this second link; And
Power consumption unit, one end are electrically connected at second link of this control module, its other end ground connection.
2. electric supply installation according to claim 1, wherein, these feed circuit also comprise:
The second source input end;
Second power supply unit is electrically connected at this second source input end; And
Switch unit, one end are electrically connected at this first power input, and its other end is electrically connected at this power output end and this second source input end simultaneously.
3. electric supply installation according to claim 2, wherein, this first power supply unit is a battery, this second power supply unit is a system power supply.
4. electric supply installation according to claim 2, wherein, the voltage of this second power supply unit is higher than the voltage of this first power supply unit, and this switch unit is a diode, its anode is electrically connected at first power input of this first power supply unit, its negative electrode is electrically connected at the second source input end of this power output end and this second power supply unit simultaneously, when this second power supply unit is not powered, this diode current flow, by this first power supply unit power supply, when this second power supply unit power supply, this diode ends, by this second power supply unit power supply.
5. electric supply installation according to claim 1, wherein, this power consumption unit is a resistance.
6. electric supply installation according to claim 1, wherein, the switch terminal of this control module is a selector switch.
7. electric supply installation according to claim 6, wherein, this selector switch is arranged at the shell of this electronic installation.
8. electric supply installation according to claim 1 also comprises one first anti-interference module, and the one end is electrically connected at first link of this control module, and the electrical ground connection of its other end is switched the interference that moment produced in order to the switch terminal that prevents this control module.
9. electric supply installation according to claim 8, wherein, this anti-interference module is an electric capacity.
10. electric supply installation according to claim 2, also comprise one second anti-interference module, the one end is electrically connected at the power output end of feed circuit, the electrical ground connection of its other end, in order to preventing the noise of powering, and the power supply shake when switching of this first power supply unit and this second power supply unit.
11. electric supply installation according to claim 10, wherein, this second anti-interference module comprises:
Second electric capacity, the one end is electrically connected at the power output end of feed circuit, and the electrical ground connection of its other end is in order to provide High frequency filter;
The 3rd electric capacity, the one end is electrically connected at the power output end of feed circuit, and the electrical ground connection of its other end is in order to provide low frequency filtering and energy storage.
12. electric supply installation according to claim 1, wherein, this Nonvolatile memory is wherein one of complementary metal oxide semiconductor (CMOS) and a non-volatile random access memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101808754A CN101414485B (en) | 2007-10-19 | 2007-10-19 | Power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101808754A CN101414485B (en) | 2007-10-19 | 2007-10-19 | Power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101414485A CN101414485A (en) | 2009-04-22 |
| CN101414485B true CN101414485B (en) | 2011-03-16 |
Family
ID=40594973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101808754A Expired - Fee Related CN101414485B (en) | 2007-10-19 | 2007-10-19 | Power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101414485B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103365392B (en) * | 2012-03-26 | 2016-06-08 | 辽宁华鼎科技股份有限公司 | Internal storage management system |
| TWI645672B (en) * | 2017-11-15 | 2018-12-21 | 廣達電腦股份有限公司 | Power reset circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1423424A (en) * | 2001-12-07 | 2003-06-11 | 明基电通股份有限公司 | Portable electronic device with power source failture restoring function and failture restoring method |
| WO2004084370A1 (en) * | 2003-03-17 | 2004-09-30 | Siemens Akitengesellschaft | Method and protection device for the fail-safe parameterisation of electronic modules, especially low voltage power switches |
| CN1674155A (en) * | 2004-03-26 | 2005-09-28 | 恩益禧电子股份有限公司 | Power supply circuit and semiconductor storage device with the power supply circuit |
-
2007
- 2007-10-19 CN CN2007101808754A patent/CN101414485B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1423424A (en) * | 2001-12-07 | 2003-06-11 | 明基电通股份有限公司 | Portable electronic device with power source failture restoring function and failture restoring method |
| WO2004084370A1 (en) * | 2003-03-17 | 2004-09-30 | Siemens Akitengesellschaft | Method and protection device for the fail-safe parameterisation of electronic modules, especially low voltage power switches |
| CN1674155A (en) * | 2004-03-26 | 2005-09-28 | 恩益禧电子股份有限公司 | Power supply circuit and semiconductor storage device with the power supply circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101414485A (en) | 2009-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1941542A (en) | Power-supplying circuit | |
| US11139511B2 (en) | Control circuit, battery having the control circuit and battery control method | |
| CN101583232B (en) | Control system for power discharge | |
| CN104951034A (en) | Mobile terminal and USB interface mode control method and device thereof | |
| CN101261532B (en) | Electronic device energy supply control module and energy supply control method | |
| CN103915863B (en) | Terminal unit and method of supplying power to thereof | |
| CN101719689A (en) | Dual power supply switching circuit for electronic electric energy meter | |
| CN101414485B (en) | Power supply | |
| CN100373296C (en) | Electronic device | |
| CN101996144A (en) | Flash control method and device | |
| CN102346529B (en) | Power supply control circuit | |
| CN105790360A (en) | Charging circuit, electronic device and information processing method | |
| CN101202458B (en) | Power supply circuit | |
| CN103107577B (en) | Battery management circuit and terminal | |
| CN115911732A (en) | Electric tool and discharge system | |
| EP1513240A2 (en) | Apparatus for supplying standby power | |
| CN107408828B (en) | Device for controlling the power supply of an electric circuit of a vehicle, comprising a battery and related components | |
| CN107273239A (en) | A kind of protection system of startup of server code and guard method | |
| CN104037819B (en) | The method of battery module and series-connected cell module | |
| JP2004159451A (en) | Power backup circuit, electronic apparatus, and semiconductor device | |
| CN104600797A (en) | Battery management circuit and terminal | |
| CN106410871B (en) | Power-supply management system and method | |
| CN114221532B (en) | Discharging circuit, method and intelligent device | |
| CN108304059A (en) | A kind of computer abnormal power-down auto shutdown system and method | |
| CN219512634U (en) | USB module control circuit, USB equipment and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20151019 |
|
| EXPY | Termination of patent right or utility model |