CN103064497B - Power supply Time-delay power supply unit, network main board and network host - Google Patents
Power supply Time-delay power supply unit, network main board and network host Download PDFInfo
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- CN103064497B CN103064497B CN201110323722.7A CN201110323722A CN103064497B CN 103064497 B CN103064497 B CN 103064497B CN 201110323722 A CN201110323722 A CN 201110323722A CN 103064497 B CN103064497 B CN 103064497B
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Abstract
The present invention discloses a kind of power supply Time-delay power supply unit, delay power supply during for providing power-off for bypass controller, including the first isolation circuit, main storage capacitor, Power Monitoring Unit, delay power supply module, switching circuit and the on-off circuit being connected between motherboard power supply circuit and basic load；Wherein：By first isolation circuit it is that main storage capacitor charges for the main power source of mainboard power circuit power supply；Power Monitoring Unit is used to monitor main power voltage, the keying of control delay power supply module and the break-make of on-off circuit；The delay power supply module is used to the voltage conversion of main storage capacitor be bypass controller operating voltage；The switching circuit is used for the bypass controller operating voltage that the bypass controller operating voltage of motherboard power supply circuit output is switched to delay power supply module output when the power supply module that is delayed starts.Above-mentioned Time-delay power supply unit, can be when power is off bypass controller delay power supply.
Description
【Technical field】
The present invention relates to power supply, more particularly, to a kind of power supply Time-delay power supply unit, network main board and network host.
【Background technology】
In modern high intelligent network Bypass Control technology, it is desirable to be able to network bypass in the case of outside power cut-off
State is controlled.Because external power source power-off has the characteristics of Unpredictability, to realize this functionality just need to accomplish with
It is lower 2 points：
1st, the signal of external power source power-off can be quickly detected, notice network bypass controller is acted；
2nd, after the power-off of outside abnormity of power supply, the voltage on mainboard remains to maintain the stationary value of a period of time to network bypass
Device performs corresponding action.
Some mininet computers are inputted using direct current single supply, and input power once disconnects, all magnitudes of voltage of mainboard
Begin to decline, the power demands of network bypass device can not be ensured.
【The content of the invention】
Based on this, it is necessary to provide a kind of power supply that power-off protection is provided for the computer that is inputted using direct current single supply and prolong
When electric supply installation.
A kind of power supply Time-delay power supply unit, delay power supply during for providing power-off for bypass controller, including first every
From circuit, main storage capacitor, Power Monitoring Unit, delay power supply module, switching circuit and be connected to motherboard power supply circuit and
On-off circuit between basic load；Wherein：For mainboard power circuit power supply main power source be by first isolation circuit
Main storage capacitor charging；The Power Monitoring Unit inputs the main power voltage and connects delay power supply module and switch electricity
Road, for monitoring main power voltage, and start the delay power supply module when main power voltage declines default pressure drop and disconnect
On-off circuit；The delay power supply module connects main storage capacitor, for being Bypass Control by the voltage conversion of main storage capacitor
Device operating voltage；The switching circuit is connected with Power Monitoring Unit, is controlled by Power Monitoring Unit output signal, described
Switching circuit is also connected with the bypass controller operating voltage output end of motherboard power supply circuit and the Bypass Control of delay power supply module
Device operating voltage output end, it is electric for the bypass controller of motherboard power supply circuit output to work when the power supply module that is delayed starts
Crush-cutting is changed to the bypass controller operating voltage of delay power supply module output.
Preferably, the Power Monitoring Unit is voltage comparator, and two inputs difference of the voltage comparator is defeated
Enter the voltage of the main power voltage and main storage capacitor, the output end of the comparator connects the delay power supply module and opened
Powered-down road, for the keying for the power supply module that is delayed according to the output voltage control of comparator and the break-make of on-off circuit.
Preferably, the delay power supply module includes energy supply control module and electric power driving module, the power supply mould
Block and electric power driving module input the voltage of the main storage capacitor, the electric power driving module output voltage, the power supply
Control module connects the output end of the Power Monitoring Unit, for being adjusted to the output voltage to be adapted to bypass controller
Operating voltage.
Preferably, in addition to the second isolation circuit and time storage capacitor, the voltage of the main storage capacitor by second every
From being that time storage capacitor charges after circuit, the electric power driving module inputs the voltage of main storage capacitor, the power supply mould
The voltage of block input time storage capacitor.
Preferably, the main storage capacitor and time storage capacitor are the storage capacitor for including multiple storage capacitors in parallel
Group.
Preferably, first isolation circuit and the second isolation circuit are Schottky diode, triode or direct current-straight
Flow insulating power supply.
Preferably, the switching circuit includes metal-oxide-semiconductor, and the grid of the metal-oxide-semiconductor connects the output end of Power Monitoring Unit,
The source electrode of the metal-oxide-semiconductor and drain electrode connect the operating voltage output end of the bypass controller of motherboard power supply circuit respectively and delay supplies
The operating voltage output end of the bypass controller of electric module.
A kind of network main board, including motherboard power supply circuit, basic load and bypass controller, it is characterised in that also include
Such as the power supply Time-delay power supply unit of preceding claim.
A kind of network host, including above-mentioned network main board.
Above-mentioned Time-delay power supply unit, network main board and network host, by monitoring main power voltage, obtain control delay and supply
The signal that electric module opens and closes, delay power supply module can be made to be powered for bypass controller when power is off, so as to bypass controller
Operating voltage is not also interrupted when main power source powers off, and ensures that bypass controller completes predetermined registration operation.
【Brief description of the drawings】
Fig. 1 is the power supply Time-delay power supply unit module map of an embodiment；
Fig. 2 is the circuit theory diagrams of delay power supply module in a preferred embodiment；
Fig. 3 is the circuit diagram of the isolation circuit and storage capacitor in a preferred embodiment；
Fig. 4 is the circuit theory diagrams of switching circuit in a preferred embodiment.
【Embodiment】
Network bypass function has a wide range of applications in network security industry computer, with HA's (two-node cluster hot backup)
Using being become increasingly complex to the demand of network bypass function, it is desirable to which computer capacity is according to default parameter in outside power cut-off
Enter network bypass condition or network off-state afterwards.The power supply Time-delay power supply unit of the present embodiment is realized when power is off as side
Road controller provides the function of the power supply supply of delay power supply, to complete the operation of default network bypass or disconnection.
As shown in figure 1, the power supply Time-delay power supply unit module map for an embodiment.The power supply Time-delay power supply unit 100 wraps
Include the first isolation circuit 110, main storage capacitor 120, Power Monitoring Unit 130, delay power supply module 140, on-off circuit 150 with
And switching circuit 180.
12V DC main power source is after the first isolation circuit 110, for the main storage capacitor being connected with the first isolation circuit 110
120 chargings, make main storage capacitor 120 store electric energy, the energy source as delay power supply.
Power Monitoring Unit 130 inputs the 12V DC voltage of the main power source and connects delay power supply module 140 and switch
Circuit 150.Power Monitoring Unit 130 is used to monitor main power voltage, and when main power voltage declines default pressure drop, such as under
1V drops, and start-up study power supply module 140 simultaneously disconnects on-off circuit 150.
The power supply module 140 that is delayed is used for the bypass controller operating voltage by the voltage conversion of main storage capacitor 120 into 5V
Bypass controller 300 is output to, is powered for bypass controller 300.
On-off circuit 150 is the switch control circuit carried on mainboard, and master can be controlled by controlling switch circuit 150
Load whether 220 belong to prior art, do not go to live in the household of one's in-laws on getting married herein from the acquisition operating voltage of motherboard power supply circuit 210, specific work process
State.
Switching circuit 180 is connected with Power Monitoring Unit 130, is controlled by the output signal of Power Monitoring Unit 130.Cut
Change circuit 180 while connect the bypass controller operating voltage output end and delay power supply module 140 of motherboard power supply circuit 210
Bypass controller operating voltage output end.Switching circuit 180 is used to make motherboard power supply circuit 210 defeated in main power source normal work
Go out bypass controller operating voltage to bypass controller 300, when main power source powers off, that is, the power supply module 140 that is delayed will when starting
The bypass controller operating voltage that motherboard power supply circuit 210 exports switches to the bypass controller that delay power supply module 140 exports
Operating voltage.
Illustrate the operation principle of foregoing circuit below：
When main power source continued power, mainboard is in normal operating conditions, and motherboard power supply circuit 210 is basic load 220
The operating voltage of 5V bypass controller 300 is exported while power supply.
When main power source powers off, the voltage of main power source declines rapidly.Power Monitoring Unit 130 is detecting main power voltage
When declining default pressure drop, output control signal start-up study power supply module 140 simultaneously disconnects on-off circuit 150.Now, main power source
Voltage contacts because basic load 220 is cut off with motherboard power supply circuit 210, and the speed that voltage declines slows down, and because of
The energy storage of the internal capacitance of motherboard power supply circuit 210, motherboard power supply circuit 210 remain able to export 5V voltage supply Bypass Control
Device 300.
At the same time, delay power supply module 140 starts, and is bypass controller by the voltage conversion of main storage capacitor 120
Operating voltage (5V).The voltage switching that switching circuit 180 smoothly can export motherboard power supply circuit 210 is delay power supply module
The voltage of 140 outputs.
So far, bypass controller 300 still obtains continual power supply supply when power is off, to complete predetermined registration operation.
In a preferred embodiment, Power Monitoring Unit 130 uses voltage comparator, and two of voltage comparator are defeated
Enter end and input the 12V DC voltage of main power source and the voltage of main storage capacitor 120 respectively, two voltages can be compared.Electricity
The output end connection delay power supply module 140 and on-off circuit 150 of comparator are pressed, for the output voltage according to voltage comparator
The keying of control delay power supply module 140 and the break-make of on-off circuit 150.
12V DC main power source has been declined by voltage after the first isolation circuit 110, therefore main power voltage and main energy storage
Have certain difference between the voltage of electric capacity 120, this difference is directly related with the first isolation circuit 110, and with others
Circuit is unrelated.
When main power source continued power, mainboard is in normal operating conditions, and the two-way for being now input to voltage comparator is used
In the voltage compared, i.e., keep above-mentioned difference between the voltage of main power voltage and main storage capacitor 120, thus voltage ratio compared with
The output of device 130 is constant (high potential or low potential).This constant output closes delay power supply module 140, on-off circuit 150
Conducting, then basic load 220 can be provided working power by motherboard power supply circuit 210, while bypass controller 300 is by motherboard power supply
Circuit 210 provides 5V working power.
When main power source powers off, the main power voltage for being input to voltage comparator declines rapidly, and on main storage capacitor 120
Voltage then declines slowly, after a period of time, i.e., when main power voltage is less than the voltage on main storage capacitor 120, and voltage comparator
Export another steady state value (being adaptably low potential or high potential).This steady state value opens delay power supply module 140, switch electricity
Road 150 disconnects, then basic load 220 disconnects rapidly with motherboard power supply circuit 210, slow down the electricity in motherboard power supply circuit 210
Power consumption in appearance, the decline of main power voltage slow down；On the other hand delay power supply module 140 starts and exports 5V voltages,
Switching circuit 180 is switched to the voltage that delay power supply module 140 exports.
In a preferred embodiment, energy supply control module 142 and power supply are included with reference to Fig. 2, delay power supply module 140
Drive module 144.Wherein electric power driving module 144 exports the operating voltage of bypass controller 300, and energy supply control module 142 connects
The output end of Power Monitoring Unit 130 is connect, for exporting electric power driving module 144 according to the output of Power Monitoring Unit 130
The operating voltage of bypass controller 300.Energy supply control module 142 and electric power driving module 144 input main storage capacitor 120
Voltage, operating voltage is provided by main storage capacitor 120.
Specifically, the circuit theory diagrams of delay power supply module 140 are as shown in Fig. 2 energy supply control module 142 is put including computing
Big device and its peripheral components, electric power driving module 144 include metal-oxide-semiconductor and its peripheral components.The operating voltage of operational amplifier
The operating voltage VCC12BYPASS of VCC12LONG and metal-oxide-semiconductor can provide by main storage capacitor 120.One of operational amplifier
Input input reference voltage, the voltage of another input sampling metal-oxide-semiconductor drain electrode output, metal-oxide-semiconductor is output to after being compared
Grid controls the working condition of metal-oxide-semiconductor, so that the voltage VCC5BYPASS of metal-oxide-semiconductor output maintains 5V or so all the time, as
The operating voltage of bypass controller 300.
As shown in Fig. 2 the reference voltage of above-mentioned operational amplifier is provided by reference voltage module 146.Wherein PWR_LOSS
Signal is the output of Power Monitoring Unit 130, and in main power source continued power, PWR_LOSS signals make reference voltage module 146
In metal-oxide-semiconductor conducting, now the operational amplifier input of energy supply control module 142 reference voltage ground connection, then power drives mould
The not output voltage of block 144；When main power source powers off, PWR_LOSS signals disconnect the metal-oxide-semiconductor in reference voltage module 146, this
When 5V reference voltage is provided by reference voltage device (such as TL431) and its peripheral components for operational amplifier, so as to power supply
The exportable relatively stable 5V voltages of drive module 144 work for bypass controller 300.
Above-mentioned energy supply control module 142 can also be replaced using the power supply of integrated LDO chips.
Further, the second isolation circuit 160 and time storage capacitor are also included with reference to figure 1, above-mentioned Time-delay power supply unit
170, the voltage of main storage capacitor 120 is that time storage capacitor 170 charges after the second isolation circuit 160.Now, power supply can be made
Control module 142 connects time storage capacitor 170, and electric power driving module 144 connects main storage capacitor 120.
When being powered only with main storage capacitor 120, the heavier loads of main storage capacitor 120, main storage capacitor 120 can be caused
Voltage higher (such as 9V) energy supply control module 142 and electric power driving module 144 could be maintained to work simultaneously, less than this
Energy supply control module 142 can not work after individual voltage, and the electric energy that so main storage capacitor 120 stores cannot utilize well.
Accordingly, if maintained, the voltage time for being output to bypass controller 300 is certain, and main storage capacitor 120 initially needs to store up
Deposit more electric energy.
When being powered using time storage capacitor 170 for energy supply control module 142, the main voltage of storage capacitor 120 can decline
To close to 5V, energy supply control module 142 remains to obtain enough voltage, electric power driving module 144 is maintained the stabilization of output, because
This can utilize the electric energy of main storage capacitor 120 storage in maximum efficiency.
As shown in figure 3, in a preferred embodiment, the first isolation circuit 110 and the second isolation circuit 160 use Xiao Te
Based diode, main power source input voltage being represented with VCC12DC, VCC12BYPASS represents the voltage of main storage capacitor 120,
VCC12LONG represents the voltage of time storage capacitor 170, then sun of the VCC12DC from the Schottky diode of the first isolation circuit 110
Pole inputs, and VCC12BYPASS inputs from the anode of the Schottky diode of the second isolation circuit 160.The He of first isolation circuit 110
Second isolation circuit 160 can prevent voltage reversal from transmitting.For the amount of increase storage electric energy, main storage capacitor 120 and time energy storage
Electric capacity 160 can be the energy capacitance set for including multiple storage capacitors in parallel.In other embodiments, the first isolation circuit
110 with the second isolation circuit 160 can also be triode or DC-to-dc insulating power supply etc. it is similar rise buffer action device
Part or circuit.
As shown in figure 4, in a preferred embodiment, switching circuit 180 is metal-oxide-semiconductor, the grid of the metal-oxide-semiconductor inputs PWR_LOSS
The output of signal, i.e. Power Monitoring Unit 130, the source electrode of metal-oxide-semiconductor and drain electrode input the 5V outputs of motherboard power supply circuit 210 respectively
Terminal voltage VCC5SB and delay power supply module 140 export 5V bypass controller operating voltage VCC5BYPASS.
Above-mentioned power supply Time-delay power supply unit, it can be when power is off bypass controller delay power supply, make bypass controller
Predetermined registration operation can be smoothly completed.
Further, above-mentioned power supply Time-delay power supply unit can be applied to network main board, and the network main board includes mainboard electricity
Source control circuit, basic load and bypass controller.In the presence of power supply Time-delay power supply unit, the network main board can carry
Delay for bypass controller is powered, and bypass controller is smoothly completed predetermined registration operation.
Further, above-mentioned network main board can be applied to network host.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (7)
1. a kind of power supply Time-delay power supply unit, delay power supply during for providing power-off for bypass controller, it is characterised in that bag
Include the first isolation circuit, main storage capacitor, Power Monitoring Unit, delay power supply module, switching circuit and be connected to mainboard electricity
On-off circuit between source circuit and basic load；Wherein：
By first isolation circuit it is that main storage capacitor charges for the main power source of mainboard power circuit power supply, makes main energy storage electricity
Hold storage electric energy, the energy source as delay power supply；
The Power Monitoring Unit inputs the main power voltage and connects delay power supply module and on-off circuit, for monitoring master
Supply voltage, and start the delay power supply module when main power voltage declines default pressure drop and disconnect on-off circuit；
The delay power supply module connects main storage capacitor, for the voltage conversion of main storage capacitor to be worked for bypass controller
Voltage；
The switching circuit is connected with Power Monitoring Unit, is controlled by Power Monitoring Unit output signal, the switching electricity
Road is also connected with the bypass controller operating voltage output end of motherboard power supply circuit and the bypass controller work of delay power supply module
Voltage output end, for switching the bypass controller operating voltage of motherboard power supply circuit output when the power supply module that is delayed starts
For the bypass controller operating voltage of delay power supply module output；
The delay power supply module includes energy supply control module and electric power driving module, the energy supply control module and power drives
Module inputs the voltage of the main storage capacitor, the electric power driving module output voltage, the energy supply control module connection
The output end of the Power Monitoring Unit, for the output voltage to be adjusted to the operating voltage for being adapted to bypass controller；
Also include the second isolation circuit and time storage capacitor, the voltage of the main storage capacitor is time after the second isolation circuit
Storage capacitor charges, and the electric power driving module inputs the voltage of main storage capacitor, the energy supply control module input time energy storage
The voltage of electric capacity.
2. power supply Time-delay power supply unit as claimed in claim 1, it is characterised in that the Power Monitoring Unit be voltage ratio compared with
Device, two inputs of the voltage comparator input the voltage of the main power voltage and main storage capacitor, the ratio respectively
Compared with the output end connection delay power supply module and on-off circuit of device, supplied for being delayed according to the output voltage control of comparator
The keying of electric module and the break-make of on-off circuit.
3. power supply Time-delay power supply unit as claimed in claim 1 or 2, it is characterised in that the main storage capacitor and time energy storage
Electric capacity is the energy capacitance set for including multiple storage capacitors in parallel.
4. power supply Time-delay power supply unit as claimed in claim 1 or 2, it is characterised in that first isolation circuit and second
Isolation circuit is Schottky diode, triode or DC-to-dc insulating power supply.
5. power supply Time-delay power supply unit as claimed in claim 1, it is characterised in that the switching circuit includes metal-oxide-semiconductor, described
The output end of the grid connection Power Monitoring Unit of metal-oxide-semiconductor, the source electrode of the metal-oxide-semiconductor and drain electrode connect motherboard power supply circuit respectively
5V voltage output ends and delay power supply module bypass controller 5V operating voltage output ends.
6. a kind of network main board, including motherboard power supply circuit, basic load and bypass controller, it is characterised in that also include such as
Power supply Time-delay power supply unit described in any one of claim 1 to 5.
7. a kind of network host, including network main board as claimed in claim 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110323722.7A CN103064497B (en) | 2011-10-21 | 2011-10-21 | Power supply Time-delay power supply unit, network main board and network host |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110323722.7A CN103064497B (en) | 2011-10-21 | 2011-10-21 | Power supply Time-delay power supply unit, network main board and network host |
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| CN103064497A CN103064497A (en) | 2013-04-24 |
| CN103064497B true CN103064497B (en) | 2017-11-24 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617654B (en) * | 2014-11-25 | 2016-10-05 | 深圳大学 | A kind of network bypass device and state method to set up thereof |
| FR3054739B1 (en) * | 2016-07-27 | 2020-06-19 | Zodiac Aero Electric | PILOTAGE ASSEMBLY OF STATIC SWITCHING ELEMENTS IN AN AIRCRAFT |
| CN110231862B (en) * | 2018-03-06 | 2022-10-28 | 佛山市顺德区顺达电脑厂有限公司 | Server system with power failure protection function and method thereof |
| CN110618742B (en) * | 2019-08-20 | 2022-02-18 | 苏州浪潮智能科技有限公司 | PDB board and working method thereof |
| CN111399620B (en) * | 2020-04-24 | 2021-09-10 | 西安紫光国芯半导体有限公司 | Backup power supply and backup method |
| CN111478447A (en) * | 2020-05-13 | 2020-07-31 | 武汉盛帆电子股份有限公司 | Concentrator and power supply method |
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