CN100464306C - Sequentially electrifying device, method and single board - Google Patents
Sequentially electrifying device, method and single board Download PDFInfo
- Publication number
- CN100464306C CN100464306C CNB2007100864899A CN200710086489A CN100464306C CN 100464306 C CN100464306 C CN 100464306C CN B2007100864899 A CNB2007100864899 A CN B2007100864899A CN 200710086489 A CN200710086489 A CN 200710086489A CN 100464306 C CN100464306 C CN 100464306C
- Authority
- CN
- China
- Prior art keywords
- sequence power
- circuit
- veneer
- slot number
- card
- 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.)
- Active
Links
Images
Landscapes
- Power Sources (AREA)
Abstract
This invention relates to one order electricity device and method, wherein, the device comprises timer code circuit and buffer output executive circuit; the method comprises the following steps: single board card receives the tank signals and generates timer signal accordingly; according to the timer signal sending the circuit start signals to the single board card to electrify the single board. Through this invention, each single tank card realizes the orderly electrifying without control by main control board card.
Description
Technical field
The present invention relates to a kind of last power technology of system or equipment, relate in particular to a kind ofly in many plug-in cards system, realize a plurality of veneers are sticked into the technology of the sequence power-on of capable sequence power-on.
Background technology
Many plug-in cards system is meant the system of a plurality of veneer cards of can supporting to peg graft.In this system, the groove position that a plurality of veneer cartoons are crossed System Backplane is plugged in the system, and system powers to the veneer card by the groove position.Many plug-in cards system is when powering on, because the capacitive load of each veneer card is bigger, therefore can have bigger dash current, the dash current when powering in order to reduce requires each veneer draw-in groove position by the certain time interval sequence power-on to power supply and veneer card Effect on Performance.
Existing sequence power-on scheme as shown in Figure 1.The backboard of system is provided with a plurality of grooves positions such as groove position 1-4 veneer card that is used to peg graft; Also be provided with the master control groove position 0 master control integrated circuit board (figure does not mark) that is used for pegging graft in addition.When powering on operation, the master control integrated circuit board powers on earlier, controls each veneer then and sticks into capable sequence power-on, and power module is the veneer card power supply that is plugged on the groove position by backboard, simultaneously slot number is sent to the veneer card.The defective of prior art is: in a single day the master control integrated circuit board breaks down and needs repairing, and will carry out charged for replacement, the situation that each veneer card is all wanted power down so just occurs, and in a single day the outage that maloperation also can cause the veneer card appear in the master control integrated circuit board, occurs unusual.In a word, the fault of master control integrated circuit board can have influence on the reliability of the power supply of whole many plug-in cards system.
Summary of the invention
The problem to be solved in the present invention is: the master control integrated circuit board of each veneer card sequence power-on of control is bigger to the system reliability influence in existing many plug-in cards system.
In order to address the above problem, one embodiment of the present of invention have provided a kind of sequence power-on device, are arranged on the veneer card in many plug-in cards system, also be provided with soft-start circuit on the described veneer card, wherein, described sequence power-on device comprises: the gentle output executing circuit that opens of timing decoding scheme
Described timing decoding scheme is used for generating corresponding delay time according to the slot number signal of described veneer clamping described many plug-in cards of coming from of receiving system, sends the unlatching control signal when delay time arrives the back to the described slow output executing circuit that opens;
Describedly slow open output executing circuit and be used for when receiving described unlatching control signal after, to the soft-start circuit transmission enabling signal of described veneer card.
In order to address the above problem, an alternative embodiment of the invention has provided a kind of sequence power-on method, comprising:
After the slot number signal that comes from backboard groove position is received in the veneer clamping, generate corresponding delay time according to described slot number signal;
After described delay time arrived, the slow output executing circuit that opens in described sequence power-on device sent the unlatching control signal;
Described delaying opened output executing circuit after receiving described unlatching control signal, and the soft-start circuit transmission enabling signal to described veneer card powers on described veneer card.
Therefore, by the present invention, realized the sequence power-on of each veneer card by the control of each veneer card place slot number signal, make the sequence power-on of each veneer card not be subjected to the control of master control integrated circuit board, eliminated the influence to each veneer card power supply performance of breaking down and causing owing to the master control integrated circuit board, the reliability that has improved system has also reduced manufacturing cost.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is a sequence power-on scheme synoptic diagram of the prior art;
Fig. 2 is the embodiment of the invention 1 a described sequence power-on apparatus structure synoptic diagram;
Fig. 3 is a timing decoding circuit structure synoptic diagram shown in Figure 2;
Fig. 4 is the timing decoding circuit structure synoptic diagram in the embodiment of the invention 2 described sequence power-on devices;
Fig. 5 is the embodiment of the invention 3 described sequence power-on apparatus structure synoptic diagram;
Fig. 6 is the embodiment of the invention 4 described sequence power-on method flow diagrams;
Fig. 7 is the embodiment of the invention 1 described slow circuit diagram that opens output executing circuit;
Fig. 8 is the circuit diagram of the embodiment of the invention 3 described voltage comparator circuits that power on.
Embodiment
Present embodiment provides a kind of sequence power-on device, as shown in Figure 2, is the veneer card inner structure synoptic diagram that a device has the described sequence power-on device 10 of present embodiment.This sequence power-on device 10 comprises regularly the decoding scheme 11 gentle output executing circuits 13 that open.Wherein, the each several part circuit in the sequence power-on device 10 is by supply lines 20 power supplies of veneer card.
When this veneer card is plugged on the groove position (not marking among the figure) of System Backplane, when system begins to power, system powers on through supply lines 20 by the groove position, and system also sends the slot number signal of this groove position to this veneer card by the groove position, because the soft-start circuit 12 of this moment does not start as yet, so supply lines 20 can't be the electric of this veneer card; Regularly generate corresponding timing signal after 11 pairs of slot number signal interpretations of decoding scheme and send to the slow output executing circuit 13 that opens; The slow output executing circuit 13 that opens is used for sending enabling signals according to the timing of this time delayed signal setting to the soft-start circuit 12 of this veneer card, soft-start circuit 12 is started, for this veneer card powers on.
Particularly, the described timing decoding scheme 11 of present embodiment can be made up of resistance capacitance element and code translator, for convenience of description, supposes that the described system of present embodiment has 16 groove positions altogether, and the slot number of each groove position is four dyadic numbers.Correspondingly, as shown in Figure 3, regularly decoding scheme 11 comprises that 16 shunt capacitance C1-C16 are in series with a resistance R and is connected.And each electric capacity among the shunt capacitance C1-C16 is also connected and is provided with an electronic switch K1-K16, comes from slot number signal control electronic switch K1-K16 after code translator 112 decodings of backboard groove position; The end that resistance R is not connected with capacitor C 1-C1 links to each other with the supply lines 20 of this veneer card; The end that capacitor C 1-C16 is not connected with resistance R links to each other with ground wire; The end that timing signal is connected with capacitor C 1-C16 from resistance R is drawn and is connected to the slow output executing circuit 13 that opens.
When powering on operation, electronic switch K1-K16 all is in open mode, and 112 pairs in code translator comes from the slot number signal of backboard groove position to be deciphered, and four dyadic numbers are decoded as the sixteen bit binary number.The decoding truth table is as shown in table 1,
Table 1
| Groove position sequence number | Binary slot number signal | The |
| 1 | 0000 | 0000?0000?0000?0000 |
| 2 | 0001 | 0000?0000?0000?0001 |
| 3 | 0010 | 0000?0000?0000?0011 |
| 4 | 0011 | 0000?0000?0000?0111 |
| …… | …… | |
| 16 | 1111 | 1111?1111?1111?1111 |
For instance, the slot number signal of the 3rd sequence number is 0010, is 0,000 0,000 0,000 0011 through the slot number signal after the decoding then, controls corresponding electronic switch and opens.Particularly, can set in advance when a certain position in the slot number signal after the decoding is 0 and open corresponding electronic switch, can make also perhaps that a certain position is to open corresponding electronic switch at 1 o'clock.If adopt the latter, then electronic switch K15, K16 are opened, and capacitor C 15, C16 are linked into regularly in the decoding scheme 11.Because the time-lag action of electric capacity produces corresponding delay time, the delay time of a plurality of veneer cards in this many plug-in cards system has nothing in common with each other; Open output executing circuit 13 transmission unlatching control signals to delaying after delay time arrives, slow opening opened after output executing circuit 13 receives this start signal, and the output enabling signal is to soft-start circuit 12, with realization powering on to this veneer card.Specifically slow opens output executing circuit 13 as shown in Figure 7.
It may be noted that herein electronic switch K1-K16 can be transistor, field effect transistor, relay or analog switch.The capacitance of each shunt capacitance C1-C16 can be set to same or different according to the needs of timing.If wherein each capacitance is set to identically, then help the assembling and the design of simplification device.
By the described device of present embodiment, realized the sequence power-on of each veneer card by the control of each veneer card place slot number signal, make the sequence power-on of each veneer card not be subjected to the control of master control integrated circuit board, eliminated the influence to each veneer card power supply performance of breaking down and causing owing to the master control integrated circuit board, the reliability that has improved system has also reduced manufacturing cost.
The number of the capacity cell that adopts in the embodiment 1 described timing decoding scheme 11 need be identical with groove position number, realizes sequence power-on to produce different timings, and need code translator to decipher, and therefore the components and parts that need are more.Present embodiment provides another kind of sequence power-on device, as shown in Figure 4,
Compare with embodiment 1, do not need to be provided with code translator 12 in the timing decoding scheme 11 of present embodiment.Particularly, regularly in the decoding scheme 11 structure as shown in Figure 4, still by resistance R, a plurality of shunt capacitances and corresponding electronic switch are formed, its annexation is similar to Example 1, but the number of shunt capacitance significantly reduces, and is identical with the figure place of slot number signal.
Particularly, supposing also has 16 groove positions in this many plug-in cards system, and the slot number of each groove position still is four dyadic numbers.Shunt capacitance in the present embodiment also only need have four, i.e. C1-C4, and corresponding electronic switch is K1-K4.Wherein, the capacitance of each electric capacity is different, and the capacitance of different electric capacity and also inequality, make that different slot number signals can be corresponding to different delay times.Particularly, the capacitance of each electric capacity can be respectively be provided with according to the weights of the binary number of slot number signal.In this example, the slot number signal is four, and it is not 8,4,2,1 that corresponding weights are divided into.Then the capacitance of corresponding capacitor C 1-C4 can be 8C, 4C, 2C, 1C.Wherein, C represents the capacitance of a base unit.Concrete corresponding relation is as shown in table 2,
Table 2
| Groove position sequence number | Binary slot number signal | Corresponding |
| 1 | 0000 | 0C |
| 2 | 0001 | 1C |
| 3 | 0010 | |
| 4 | 0011 | 1C+2C |
| …… | …… |
| 16 | 1111 | 1C+2C+4C+8C |
Power on when operation, electronic switch K1-K4 all is in open mode, and the slot number nonpassage of signal of backboard groove position is crossed decoding and directly controlled the state of electronic switch K1-K4.Particularly, can set in advance when a certain position in the slot number signal after the decoding is 0 and open corresponding electronic switch, can make also perhaps that a certain position is to open corresponding electronic switch at 1 o'clock.If adopt the latter, then as shown in table 2, for the 3rd groove position, its slot number signal is 0011, and corresponding electronic switch K3, K4 are opened, and capacitor C 1, C2 are linked into regularly in the decoding scheme 11.Capacitance altogether is 2C+1C=3C.Because the time-lag action of resistor capacitor circuit produces timing signal and sends to the slow output executing circuit 13 that opens, the slow output executing circuit 13 that opens is given soft-start circuit 12 according to the output enabling signal of fixing time of this timing signal setting, to realize powering on to this veneer card.
By the described device of present embodiment, realized the sequence power-on of each veneer card by the control of each veneer card place slot number signal, make the sequence power-on of each veneer card not be subjected to the control of master control integrated circuit board, eliminated the influence to each veneer card power supply performance of breaking down and causing owing to the master control integrated circuit board, the reliability that has improved system has also reduced manufacturing cost.In addition, compare, also reduced the number of components and parts, reduced design difficulty and also further reduced manufacturing cost with embodiment 1.
Embodiment 3
In actual applications, the veneer card is inserted in the process of backboard groove position, and the last piezoelectric voltage on the supply lines 20 slowly rises with certain slope, if in the voltage uphill process, promptly open subsequent conditioning circuit, then might cause electric voltage dropping, circuit working is unusual, causes slope rising problem.In addition, the Mechanical Contact of veneer card and backboard groove position also can make piezoelectric voltage shake.In order to address the above problem, present embodiment provides another kind of sequence power-on device, as shown in Figure 5,
Wherein, the voltage comparator circuit 14 that powers on is used for the last piezoelectric voltage on the comparison supply lines 20, sends the unlatching control signal to the twitter circuit 15 that disappears after piezoelectric voltage reaches predetermined value on this.Particularly, in this voltage comparator circuit 14 that powers on a triode can be set, its input voltage is provided by divider resistance, can adjust the cut-in voltage value of triode by the intrinsic standoff ratio that divider resistance is set.After the slow rising of last piezoelectric voltage reaches this cut-in voltage value, triode is opened to the twitter circuit 15 that disappears sent the unlatching control signals.Owing to make that by the voltage comparator circuit 14 that powers on going up piezoelectric voltage stops just to open subsequent conditioning circuit after the slope rising, has therefore solved slope rising problem.Power on voltage comparator circuit 14 circuit diagram as shown in Figure 8.
The twitter circuit 15 that disappears is opened after receiving the unlatching control signal of the voltage comparator circuit 14 that powers on, and reaches behind certain delay time to send to timing decoding scheme 11 to open control signals.Particularly, in the twitter circuit 15 that disappears the capacitance resistance delay circuit can be set, be used for after the twitter circuit 15 that disappears is opened, producing certain delay time.Because the shake of last piezoelectric voltage only exists in the incipient stage that powers on, by the time-lag action of the twitter circuit 15 that disappears, after eliminating, just opens the voltage dithering that powers on the back subsequent conditioning circuit, therefore can reach the purpose of eliminating shake, burning voltage.
Need to prove that herein above-mentioned voltage comparator circuit 14 and the twitter circuit 15 that disappears of powering on can be according to actual needs, one of them circuit only is set in sequence power-on device 10 or two circuit all are provided with.For example, if do not need to eliminate the voltage dithering that powers on, also can only be provided with and power on voltage comparator circuit 14 and the twitter circuit 15 that disappears is not set, the voltage comparator circuit 14 that then powers on is relatively gone up piezoelectric voltage and is reached direct opening timing decoding scheme 11 after the predetermined value.
In addition, timing decoding scheme 11 gentle opening between the output executing circuit 13 timing voltage comparator circuit 16 can also be set, be used to set a cut-in voltage value, make and just open this circuit after regularly the open control circuit of decoding scheme 11 reaches this cut-in voltage value, and send the unlatching control signal to the slow output executing circuit 13 that opens when coming from.Particularly, the triode and the voltage stabilizing diode that are in series can be set in the timing voltage comparator circuit 16, set the cut-in voltage value of triode by voltage stabilizing diode.By being set, voltage stabilizing diode make the cut-in voltage value more stable.
Present embodiment provides a kind of sequence power-on method, comprises as shown in Figure 6:
Step 101 detects when last piezoelectric voltage is arranged on the supply lines of veneer card, and last piezoelectric voltage is carried out voltage ratio, and execution in step 102 after piezoelectric voltage on this reaches predetermined magnitude of voltage is to solve the slope rising problem of piezoelectric voltage.
Step 102 postpones certain hour to eliminate the shake of piezoelectric voltage, makes piezoelectric voltage output more stable, execution in step 103 after delay time arrives.
Step 103, after the slot number signal that comes from backboard groove position is received in the veneer clamping, generate corresponding delay time according to this slot number signal, the soft-start circuit to this veneer card after this delay time arrives sends enabling signal, soft-start circuit is started, for this veneer card powers on.Particularly, can decipher this slot number signal earlier, generate corresponding delay time according to the slot number signal after the decoding according to the difference of timing decoding circuit structure.Concrete timing decoding circuit structure can be referring to embodiment 1-3.
It is pointed out that herein step 101 and 102 is not necessary step, can accept or reject as required.
By the described method of present embodiment, realized the sequence power-on of each veneer card by the control of each veneer card place slot number signal, make the sequence power-on of each veneer card not be subjected to the control of master control integrated circuit board, eliminated the influence to each veneer card power supply performance of breaking down and causing owing to the master control integrated circuit board, the reliability that has improved system has also reduced manufacturing cost.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.
Claims (14)
1. a sequence power-on device is arranged on the veneer card in many plug-in cards system, also is provided with soft-start circuit on the described veneer card, it is characterized in that described sequence power-on device comprises: the gentle output executing circuit that opens of timing decoding scheme,
Described timing decoding scheme is used for generating corresponding delay time according to the slot number signal that comes from this groove position, veneer card place that described veneer clamping is received, sends the unlatching control signal to the described slow output executing circuit that opens after delay time arrives;
Describedly slow open output executing circuit and be used for when receiving described unlatching control signal after, to the soft-start circuit transmission enabling signal of described veneer card.
2. sequence power-on device according to claim 1, it is characterized in that: described timing decoding scheme comprises that a plurality of shunt capacitances are in series with a resistance and is connected, each electric capacity in described a plurality of shunt capacitance is also connected and is provided with an electronic switch, and described electronic switch is by described slot number signal controlling; The end that described resistance is not connected with described electric capacity links to each other with the supply lines of described veneer card; The end that described electric capacity is not connected with described resistance links to each other with ground wire; Described enabling signal is drawn from the end that described resistance is connected with described electric capacity.
3. sequence power-on device according to claim 2, it is characterized in that: also be provided with code translator in the described timing decoding scheme, each output terminal of described code translator and the control end of each described electronic switch connect one to one, described code translator to described slot number signal interpretation after from each output terminal output switch control signal.
4. sequence power-on device according to claim 3 is characterized in that: the capacitance of each electric capacity in described a plurality of shunt capacitances is identical.
5. sequence power-on device according to claim 2 is characterized in that:
The capacitance of described each electric capacity is different, and the capacitance of different electric capacity and also inequality, make that different slot number signals can be corresponding to different delay times;
Each output terminal of described slot number signal and the control end of each described electronic switch connect one to one, and are used for electronic switch is controlled.
6. sequence power-on device according to claim 2 is characterized in that: described electronic switch is transistor, field effect transistor, relay or analog switch.
7. sequence power-on device according to claim 1, it is characterized in that: also be provided with the twitter circuit that disappears in the described electrifying device, be connected with described timing decoding scheme, be used to eliminate after the shake of piezoelectric voltage to send and open control signal to described timing decoding scheme.
8. sequence power-on device according to claim 7 is characterized in that: also be provided with the voltage comparator circuit that powers in the sequence power-on device, be used for relatively going up and open the described twitter circuit that disappears after piezoelectric voltage reaches predetermined value.
9. sequence power-on device according to claim 1, it is characterized in that: also be provided with the voltage comparator circuit that powers in the described sequence power-on device, be connected with described timing decoding scheme, be used for relatively going up and open described timing decoding scheme after piezoelectric voltage reaches predetermined value.
10. sequence power-on device according to claim 1 is characterized in that: also be provided with the timing voltage comparator circuit in the described sequence power-on device and slow open output executing circuit and be connected with described, be used to control the described slow cut-in voltage that opens output executing circuit.
11. a veneer card is used for many plug-in cards system, comprises soft-start circuit, it is characterized in that also comprising: the sequence power-on device
Described sequence power-on device is used for generating corresponding delay time according to the slot number signal that comes from this groove position, veneer card place that described veneer clamping is received, after delay time arrives, sends enabling signal to the described slow output executing circuit that opens;
Described soft-start circuit is used for after receiving the enabling signal that comes from the sequence power-on device, and starting this circuit is that described veneer card powers on.
12. plug-in card system more than a kind comprises a plurality of veneer cards, is plugged on the backboard groove position in described many plug-in cards system, each described veneer jig has soft-start circuit, it is characterized in that: also be provided with the sequence power-on device on each described veneer card,
Described sequence power-on device is used for generating corresponding delay time according to the slot number signal that comes from this groove position, veneer card place that described veneer clamping is received, the delay time of described a plurality of veneer cards has nothing in common with each other, after delay time arrives, send enabling signal to the described slow output executing circuit that opens;
Described soft-start circuit is used for after receiving the enabling signal that comes from the sequence power-on device, and starting this circuit is that described veneer card powers on.
13. the method based on the arbitrary described sequence power-on device realization sequence power-on of claim 1-10 is characterized in that comprising:
After the slot number signal that comes from this groove position, veneer card place was received in the veneer clamping, the sequence power-on device generated corresponding delay time according to described slot number signal;
After described delay time arrived, the slow output executing circuit that opens in described sequence power-on device sent the unlatching control signal;
Described delaying opened output executing circuit after receiving described unlatching control signal, and the soft-start circuit transmission enabling signal to described veneer card powers on described veneer card.
14. sequence power-on method according to claim 13, it is characterized in that described sequence power-on device generates corresponding delay time according to described slot number signal and comprises: the timing decoding scheme in the described sequence power-on device generates corresponding delay time according to described slot number signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100864899A CN100464306C (en) | 2007-03-13 | 2007-03-13 | Sequentially electrifying device, method and single board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100864899A CN100464306C (en) | 2007-03-13 | 2007-03-13 | Sequentially electrifying device, method and single board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101017452A CN101017452A (en) | 2007-08-15 |
| CN100464306C true CN100464306C (en) | 2009-02-25 |
Family
ID=38726478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100864899A Active CN100464306C (en) | 2007-03-13 | 2007-03-13 | Sequentially electrifying device, method and single board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100464306C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101668298B (en) * | 2008-09-01 | 2012-05-09 | 中兴通讯股份有限公司 | method for controlling power-on of single board of base station power module and carrier manager |
| CN101727080B (en) * | 2008-10-31 | 2011-06-22 | 华为技术有限公司 | Method, device and system for power input control |
| CN102006508A (en) * | 2010-11-15 | 2011-04-06 | 中兴通讯股份有限公司 | Device and method for electrifying single board of internet protocol television server |
| CN102130612B (en) * | 2010-12-20 | 2014-03-12 | 中国电力科学研究院 | Integrated control sub-module board for simulating multi-level modular converter (MMC) sub-module |
| CN102915097A (en) * | 2011-08-03 | 2013-02-06 | 中兴通讯股份有限公司 | Method and device for controlling electrifying sequence |
| CN105138147A (en) * | 2015-08-26 | 2015-12-09 | 苏州市博得立电源科技有限公司 | Wireless mouse control device based on jitter eliminating circuit |
| CN105553261B (en) * | 2016-02-19 | 2018-09-25 | 京东方科技集团股份有限公司 | DC-DC shift control modules, DC-DC converter and display device |
| CN107135514A (en) * | 2016-02-26 | 2017-09-05 | 大唐移动通信设备有限公司 | Electric control method and device on a kind of BBU of base station machine frame |
| CN107479993B (en) * | 2017-08-23 | 2021-11-23 | 惠州Tcl移动通信有限公司 | Mobile terminal, startup current squeal adjusting method and storage medium |
| CN107450414B (en) * | 2017-09-18 | 2019-12-03 | 北京百卓网络技术有限公司 | A kind of upper electric control system and method |
| CN109188030A (en) * | 2018-10-26 | 2019-01-11 | 北京华峰测控技术股份有限公司 | Different hardware board power-on time sequence control circuit and method in a kind of test macro |
| CN110850950B (en) * | 2019-11-12 | 2021-06-22 | 珠海格力电器股份有限公司 | Power-on optimization control method, device and equipment and computer readable storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6768222B1 (en) * | 2000-07-11 | 2004-07-27 | Advanced Micro Devices, Inc. | System and method for delaying power supply power-up |
| CN1595886A (en) * | 2003-09-08 | 2005-03-16 | 华为技术有限公司 | A communication equipment power management system and implementing method thereof |
| CN1725132A (en) * | 2005-05-30 | 2006-01-25 | 杭州华为三康技术有限公司 | Device and method for controlling multivoltage electric supply sequence |
-
2007
- 2007-03-13 CN CNB2007100864899A patent/CN100464306C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6768222B1 (en) * | 2000-07-11 | 2004-07-27 | Advanced Micro Devices, Inc. | System and method for delaying power supply power-up |
| CN1595886A (en) * | 2003-09-08 | 2005-03-16 | 华为技术有限公司 | A communication equipment power management system and implementing method thereof |
| CN1725132A (en) * | 2005-05-30 | 2006-01-25 | 杭州华为三康技术有限公司 | Device and method for controlling multivoltage electric supply sequence |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101017452A (en) | 2007-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100464306C (en) | Sequentially electrifying device, method and single board | |
| CN101825916B (en) | Computer system | |
| US8242834B2 (en) | Charge pump circuit | |
| US20090167316A1 (en) | Motherboard testing apparatus | |
| CN103268135A (en) | Power device control circuit and power device circuit | |
| CN102129268A (en) | Time sequence control circuit | |
| CN111505993A (en) | Sequential control circuit | |
| CN103019127A (en) | Electrifying control circuit | |
| CN112269347B (en) | Power-on and power-off time sequence control device | |
| CN212322144U (en) | Chip power supply power-on time sequence control circuit | |
| CN100456597C (en) | Constant voltage power supply circuit and method of controlling the same | |
| US20150186684A1 (en) | Power supply and electronic device with power supply | |
| CN102684486A (en) | Boost converter with multi-mode synchronous rectifier and operation method thereof | |
| CN101299157A (en) | Switch off control circuit of low-voltage difference linearity voltage stabilizer | |
| CN102487274A (en) | Time delay circuit and time sequence controller provided with same | |
| CN204334523U (en) | Power-up time delay circuit, switch | |
| US7890785B2 (en) | Apparatus and method of generating power-up signal of semiconductor memory apparatus | |
| CN102213991A (en) | Standby voltage supply system of server | |
| CN102436193A (en) | Ballast ageing control device | |
| CN101237728A (en) | LED backlight system and driving method of backlight source | |
| EP2312418B1 (en) | Power supply start-up mechanism, apparatus, and method for controlling activation of power supply circuits | |
| CN112015114B (en) | Automatic control circuit for time sequence of multi-path power supply | |
| CN1627411A (en) | Control circuit and method for starting up multiple hard disks with multiple backboards in sequence | |
| CN113178166A (en) | LED panel and driving method thereof | |
| US20200304013A1 (en) | Power switching circuit |
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 | ||
| CP03 | Change of name, title or address |
Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Patentee after: NEW H3C TECHNOLOGIES Co.,Ltd. Address before: 310053 Hangzhou hi tech Industrial Development Zone, Zhejiang province science and Technology Industrial Park, No. 310 and No. six road, HUAWEI, Hangzhou production base Patentee before: HANGZHOU H3C TECHNOLOGIES Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230627 Address after: 310052 11th Floor, 466 Changhe Road, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: H3C INFORMATION TECHNOLOGY Co.,Ltd. Address before: 310052 Changhe Road, Binjiang District, Hangzhou, Zhejiang Province, No. 466 Patentee before: NEW H3C TECHNOLOGIES Co.,Ltd. |
|
| TR01 | Transfer of patent right |