CN103901960A - Motherboard and power control method thereof - Google Patents
Motherboard and power control method thereof Download PDFInfo
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- CN103901960A CN103901960A CN201310072575.XA CN201310072575A CN103901960A CN 103901960 A CN103901960 A CN 103901960A CN 201310072575 A CN201310072575 A CN 201310072575A CN 103901960 A CN103901960 A CN 103901960A
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- 238000006073 displacement reaction Methods 0.000 claims description 14
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- 230000005669 field effect Effects 0.000 description 15
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- 229910044991 metal oxide Inorganic materials 0.000 description 2
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Abstract
The invention provides a mainboard and a power supply control method thereof, which are suitable for a computer device. The main board includes: a first power socket for connecting a first power supply and providing a first voltage; the voltage conversion circuit is provided with a voltage conversion input end for receiving a first voltage through the first power supply slot, and a voltage conversion output end for providing a first standby voltage which is converted from the first voltage; a second power socket for connecting a second power supply and providing a second standby voltage; the power control unit is provided with a first power control input end for receiving a first standby voltage, a second power control input end for receiving a second standby voltage through a second power slot, and a power control output end for providing a standby voltage source for the computer device to use in a standby state.
Description
[technical field]
The present invention is about a kind of motherboard and power control method thereof, particularly a kind of motherboard applicable to dissimilar power supply unit and power control method thereof.
[background technology]
In assembling computing machine, the most general motherboard specification is ATX standard at present, formulate and announce in nineteen ninety-five by US business Intel company, content has comprised motherboard size, and the relevant obstruction and rejection design of power supply unit, its object is to reduce winding displacement number and the length in motherboard, also supplied the power supply of core component on motherboard, also met the power supply requirement of external display card simultaneously.One meets the power supply unit of ATX standard, has comprised following listed voltage source on its splicing ear: positive 3.3 volts, positive 5 volts, 5 volts of standbies, positive 12 volts, negative 12 volts, earth terminal; And signal: voltage source starts (power on), voltage source completes startup (power good), 3.3 volts of back couplings (3.3V sense).The wherein voltage source supplies computer installation of 5 volts of standbies required power supply under holding state, supplies computer installation required power supply under the open state of normal operation for positive 5 volts, and its power supply capacity is greater than the voltage source of 5 volts of standbies.In addition, except 5 volts of standbies, Voltage-output ability only just can be opened and have to other voltage source under the open state of normal operation at computer installation, and the sequential of its unlatching is relevant to the signal that voltage source startup and voltage source complete startup.
In addition, with regard to the application of mobile computer, because need meet the demand of portability, its power supply supply, taking battery as main, is directly supplied single 19 volts or 12 volt DC voltage sources.
The demand of the motherboard of mini-ITX, thin-ITX, nano-ITX equal-specification on market increases day by day in recent years, its application has comprised advertising billboard, one-body molded desktop PC (all-in-one PC), embedded system (embedded system), Barebone and digital home's theater computing machine (home theater PC, HTPC) etc.Its power supply requirement of this type of motherboard has comprised the power supply unit of ATX standard, and single direct current supply-voltage source is as battery, and user can select different power supply units to meet machine shell size according to individual demand and application target.But with supplier's angle, the motherboard of identical function but need be released different products and meets downstream client or the demand of terminal user due to different power supply unit frameworks, therefore not only cause the raising of design cost, also increased the complexity of stock control.
[summary of the invention]
In view of above problem, the invention provides a kind of motherboard and power control method thereof, make motherboard applicable to dissimilar power supply unit, solve and commonly use the use restriction that motherboard cannot general different electrical power.
The present invention proposes a kind of motherboard, is suitable for a computer installation, comprises the first power supply slot, second source slot, voltage conversion circuit and power control unit.The first power supply slot is electrically connected for the first power supply unit, and the first voltage is provided.Voltage conversion circuit has voltage transitions input end and voltage transitions output terminal, voltage transitions input end sees through the first power supply slot and is coupled to the first power supply unit to receive the first voltage, and voltage transitions output terminal provides the first standby voltage, by the first voltage transitions.Second source slot is electrically connected for second source supply, and the second standby voltage is provided.Power control unit has the first power supply control input end, second source control input end and power supply control output end, the first power supply control input end is coupled to voltage transitions output terminal to receive the first standby voltage, second source control input end sees through second source slot and is coupled to second source supply to receive the second standby voltage, and power supply control output end provides standby voltage source, use under holding state for computer installation.Wherein, when second source supply is electrically connected second source slot, standby voltage source is provided by the second standby voltage, and work as, second source supply is not electrically connected second source slot and the first power supply unit connects the first power supply slot, and standby voltage source is provided by the first standby voltage.
The present invention proposes again a kind of power control method of motherboard, is applicable in a computer installation, and motherboard provides standby voltage source, and control method comprises following steps:
Whether detecting second source supply connects second source slot, if second source supply does not connect second source slot, standby voltage source is provided by the first standby voltage; If second source supply has connected second source slot, carry out next step.
Then, whether detecting computer installation is open state and exports the first standby voltage.If detecting computer installation is not open state, standby voltage source is provided by the second standby voltage; If computer installation has been open state export the first standby voltage, standby voltage source is provided by the first standby voltage.
Effect of the present invention is, by the control circuit on motherboard and power control method thereof, makes motherboard can be applicable to dissimilar power supply unit, can provide client and terminal user in the time selecting power supply unit, to have more flexible selection; Moreover, the disclosed design of the present invention, also can avoid motherboard in order to be suitable for dissimilar power supply unit, and makes the derivative design iterations causing for power supply unit variation of motherboard of same function, not only save R&D costs, also made in stock's management more simple.
About feature of the present invention, implementation and effect, hereby coordinate to be graphicly described in detail as follows as most preferred embodiment.
[brief description of the drawings]
Fig. 1 discloses the schematic diagram of the motherboard of an embodiment for the present invention.
Fig. 2 a discloses the schematic diagram of the switching winding displacement of an embodiment for the present invention.
Fig. 2 b when facing power end splicing ear and motherboard end splicing ear, the schematic diagram putting in order of jack numbering.
Fig. 3 discloses the schematic diagram of the power control unit of the motherboard of an embodiment for the present invention.
Fig. 4 discloses the schematic diagram of the signal generating circuit of the power control unit of an embodiment for the present invention.
Fig. 5 discloses the sequential chart of its relevant control signal of signal generating circuit of an embodiment for the present invention.
Fig. 6 discloses the schematic diagram of the external power supply circuit for detecting of the power control unit of an embodiment for the present invention.
Fig. 7 connects the schematic diagram of configuration for the power supply that the present invention discloses the active circuits of the motherboard of an embodiment.
Fig. 8 discloses the flow chart of steps of the mainboard power supply control method of an embodiment for the present invention.
Primary clustering symbol description:
100 motherboard 110 first power supply slots
111 first power supply unit 111a the first voltages
120 second source slot 121 second source supplies
121a the second standby voltage 130 voltage conversion circuits
131 voltage transitions input end 132 voltage transitions output terminals
132a the first standby voltage 140 power control units
141 first 142 second source control input ends, power supply control input ends
143 150 standby voltage sources, power supply control output ends
200 switching winding displacement group 210 power end splicing ears
220 motherboard end splicing ear 230 winding displacements
310 first switch 320 second switches
330 the 3rd switch 340 external power supply circuit for detecting
400 signal generating circuit 410 first field-effect transistors
420 second field-effect transistor 460 comparers
470 bleeder circuit 610 first resistance
620 second resistance 630 the 3rd resistance
640 detecting output terminal 710 active circuits
711 power input 720 first diodes
730 second diodes
[embodiment]
In the middle of instructions and follow-up claims, couple a word and comprise directly any and be indirectly electrically connected means at this.Therefore, be coupled to one second device if describe a first device in literary composition, represent that first device can directly be electrically connected in the second device, or be indirectly electrically connected to the second device through other device or connection means.In addition, positive signal is the state of a Digital Logic signal, or can be regarded as general Digital Logic signal state 1, and anti-phase signal is the state of another Digital Logic signal, or can be regarded as general Digital Logic signal state 0.
Fig. 1 discloses the schematic diagram of the motherboard 100 of an embodiment for the present invention.Motherboard 100 is applicable to computer installation, comprises the application such as one-body molded desktop PC, embedded system, Barebone and digital home's theater computing machine, also can be applicable in addition in the control system of advertising billboard, but not as limit.Motherboard 100 comprises the first power supply slot 110, second source slot 120, voltage conversion circuit 130 and power control unit 140.
As shown in Figure 1, the first power supply slot 110 is electrically connected for the first power supply unit 111, and the first voltage 111a is provided.Voltage conversion circuit 130, there is voltage transitions input end 131 and voltage transitions output terminal 132, voltage transitions input end 131 sees through described the first power supply slot and is coupled to the first power supply unit 111 to receive the first voltage 111a, and voltage transitions output terminal 132 provides the first standby voltage 132a, converted by the first voltage 111a.For example the first power supply unit 111 is 19 volts of outputs or the battery of 12 volt DC voltages, or be an AC/DC power converter, by the mains voltage source of an interchange, i.e. 110 volts or the alternating voltage of 220 volts, being converted to the first voltage 111a of direct current, for example, is one 19 volts or the direct voltage source of 12 volts.See through the first power supply unit 111 is directly inserted on motherboard 100, or see through the connection of winding displacement, by 19 volts or the direct voltage source of 12 volts is coupled to the voltage conversion circuit 130 on motherboard, be a DC-DC switch type power converter, and export the first standby voltage 132a of 5 volt DC.
As shown in Figure 1, second source slot 120 is electrically connected for second source supply 121, and the second standby voltage 121a is provided.For example second source supply 121 is one to meet the power supply unit of ATX standard, has the direct voltage source outputs such as 5 volts of positive 12 volts, standby, and sees through winding displacement and be coupled to second source slot 120, and wherein 5 volts of standbies are the second standby voltage 121a.
As shown in Figure 1, power control unit 140 has the first power supply control input end 141, second source control input end 142 and power supply control output end 143.The first power supply control input end 141 is coupled to voltage transitions output terminal 132 to receive the first standby voltage 132a, second source control input end 142 sees through second source slot 120 and is coupled to second source supply 121 to receive the second standby voltage 121a, and power supply control output end 143 provides standby voltage source 150, use under holding state for computer installation.Because computer installation is under holding state, in motherboard 100, still there is the electronic components that needs operation, the for example memory modules of the temporary each parameter of computer system, in order to can Quick-return opening computer state, or chipset executive routine etc. in background, when therefore power supply unit still needs to provide a standby, required standby voltage source 150 is in order to the normal operation of described electronic components.This standby voltage source 150, meeting in the power supply unit of ATX standard, is provided by the direct voltage source of 5 volts of standbies.
Further illustrate, when second source supply 121 is electrically connected second source slot 120, the voltage in standby voltage source 150 is provided by the second standby voltage 121a, be not electrically connected second source slot 120 and work as second source supply 121, and the first power supply unit 111 connects the first power supply slot 110, the voltage in standby voltage source 150 is provided by the first standby voltage 132a.The second source supply 121 that for example ought meet ATX standard is connected in second source slot 120 with winding displacement, and while producing the second standby voltage 121a of 5 volts of standbies, power control unit 140 utilizes the switching controls of its internal switch, and standby voltage source 150 is coupled to second source control input end 142 to receive the second standby voltage 121a; Be not connected in second source slot 120 and work as second source supply 121, and the first power supply unit 111 of AC/DC power converter connects the first power supply slot 110, and the first voltage 111a that exports 19 volts gives the voltage conversion circuit 130 of DC-DC switch type power converter, while changing into the first standby voltage 132a of 5 volt DC, power control unit 140 utilizes the switching controls of its internal switch, and standby voltage source 150 is coupled to the first power supply control input end 141 to receive the first standby voltage 132a.
Fig. 2 a discloses the schematic diagram of the connection second source supply 121 of an embodiment and the switching winding displacement group 200 of second source slot 120 for the present invention.Fig. 2 b when facing power end splicing ear 210 and motherboard end splicing ear 220, the schematic diagram putting in order of jack numbering.Switching winding displacement group 200 comprises power end splicing ear 210, motherboard end splicing ear 220 and winding displacement 230.Power end splicing ear 210 is in order to be connected in second source supply 121, motherboard end splicing ear 220 is in order to be connected in the second source slot 120 of motherboard 100, and winding displacement 230 is in order to be connected to each jack or stitch in power end splicing ear 210 corresponding jack or the stitch of motherboard end splicing ear 220.
Taking the present embodiment as example, the hardware design of power end splicing ear 210 and jack are defined as the design that meets ATX standard, comprise the connector of one group of 2x12 jack and the connector of one group of 2x2 jack, power end splicing ear 210 front elevations shown in Fig. 2 b are while facing power end splicing ear 210, and what jack was numbered puts in order.Due in application-specific, might not need to use all voltage sources of second source supply 121 and signal output, therefore can design motherboard end splicing ear 220 to reduce its stitch or jack number, to reduce its size, and can meet the trend that reduces device requisite space in application-specific.
Following table is in the present embodiment, the corresponding relation that is connected of power end splicing ear 210 and motherboard end splicing ear 220.100 of motherboards have utilized positive 12 voltaism potential sources, standby 5 voltaism potential sources and the voltage source in the second source supply 121 that meets ATX standard to start signal, therefore design the lead-out terminal of ATX, be the motherboard end splicing ear 220 of 12 jacks through winding displacement switching, to dwindle its size, and save the hardware materials such as unnecessary winding displacement.Motherboard end splicing ear 220 front elevations in Fig. 2 b are while facing motherboard end splicing ear 220, and what jack was numbered puts in order.It should be noted that, in the present embodiment, motherboard 100 is at computer installation required positive 5 volts of power supplys under the open state of normal operation, not directly from second source supply 121, but change the first voltage 111a and obtain via voltage conversion circuit 130, this can be compatible with the design that the first power supply unit 111 and second source supply 121 are done for motherboard 100 simultaneously, will be in describing after a while.
Fig. 3 discloses the schematic diagram of the power control unit 140 in the motherboard 100 of an embodiment for the present invention.Power control unit 140 more comprises the first switch 310, second switch 320, the 3rd switch 330 and external power supply circuit for detecting 340.The passage of the first switch 310 is to be coupled between the first power supply control input end 141 and power supply control output end 143, and its control end 311 is coupled to one first switch control signal, when second source supply 121 is electrically connected second source slot 120, and computer installation is open state while exporting the first standby voltage 132a, first switch control signal control conducting the first switch 310.
As shown in Figure 3, the passage of second switch 320 is to be coupled between second source control input end 142 and power supply control output end 143, and its control end 321 is coupled to a second switch control signal, in the time that second source supply 121 connects second source slot 120 and computer installation and is holding state, second switch control signal control conducting second switch 320.The passage of the 3rd switch 330 is to be coupled between the first power supply control input end 141 and power supply control output end 143, and its control end 331 is coupled to one the 3rd switch control signal, when the first power supply unit 111 is electrically connected the first power supply slot 110, and when second source supply 121 is not electrically connected second source slot 120, the 3rd switch control signal control conducting the 3rd switch 330.External power supply circuit for detecting 340 is detected the connection state of the first power supply unit 111 and second source supply 121 and the first power supply slot 110 and second source slot 120, and exports the 3rd switch control signal in its output terminal 341 accordingly.
Further illustrate, the stitch that forms the first voltage 111a in the present embodiment in the first power supply slot 110 is coupled to the positive 12 voltaism potential source jacks of second source slot 120, that is ought connect the first power supply slot 110 by the first power supply unit 111, or second source supply 121 is when connecting second source slot 120 and computer installation and being open state, all has the first voltage 111a.In addition, when the second source supply 121 that meets ATX standard is electrically connected second source slot 120, and when computer installation is holding state, second switch control signal control conducting second switch 320, make standby voltage source 150 be coupled to second source control input end 142 to receive the second standby voltage 121a, that is the standby 5 voltaism potential source outputs of ATX, for answering computer installation under holding state, in motherboard 100, still need the power supply of the parts of operation.
When second source supply 121 is electrically connected second source slot 120, and computer installation is open state while exporting the first standby voltage 132a, first switch control signal control conducting the first switch 310, make standby voltage source 150 be coupled to the first power supply control input end 141 to receive the first standby voltage 132a, that is now the positive 12 voltaism potential sources of ATX are output as the first voltage 111a, and be converted to the voltage source of 5 volts through voltage conversion circuit 130.This holding state and open state of sentencing computer installation is according to the object of switching, be that the power supply deliverability of 5 volts of standbies is less than 5 voltaism potential source outputs of voltage conversion circuit 130, but computer installation is under open state, the running status of each electronic component is comparatively frequent, even operating frequency also increases with multiple according to design, thereby cause the rising of power consumption, the 5 voltaism potential source outputs that now change the voltage conversion circuit 130 larger with power supply deliverability are powered, and can guarantee the stability of computer installation in operation.
Connect the first power supply slot 110 and work as the first power supply unit 111, and when second source supply 121 does not connect second source slot 120, external power supply circuit for detecting 340 is exported the 3rd switch control signal in its output terminal 341, to control conducting the 3rd switch 330, make standby voltage source 150 be coupled to the first power supply control input end 141 to receive the first standby voltage 132a, that is battery or AC/DC power converter positive 12 volts or positive 19 voltaism potential sources are output as the first voltage 111a now, and be converted to the voltage source of 5 volts through voltage conversion circuit 130.Because this voltage source of 5 volts has enough power supply deliverabilities, therefore can the power supply during in holding state or open state at computer installation, and needn't switch.
From above-mentioned explanation, the disclosed motherboard 100 of the present invention required positive 5 volts of power supplys in the time of system normal running, not directly from second source supply 121, but change the first voltage 111a and obtain via voltage conversion circuit 130.
Fig. 4 discloses the schematic diagram of the signal generating circuit 400 of the first switch control signal in the power control unit 140 of an embodiment and second switch control signal for the present invention.Signal generating circuit 400 comprises the first field-effect transistor 410, the second field-effect transistor 420, comparer 460 and bleeder circuit 470.The first field-effect transistor 410 is a N-type metal oxide semiconductor field effect transistor, in order to realize the first switch 310 in Fig. 3.The second field-effect transistor 420 is a P type metal oxide semiconductor field effect transistor, in order to realize the second switch 320 in Fig. 3.
Moreover the control end 311,321 in Fig. 3, in the embodiment of Fig. 4, is same control end 430.The anode input of comparer 460 is coupled to a voltage source indicating signal 450, start and can start to power in order to indicate the first voltage 111a to complete, the negative terminal input of comparer 460 is coupled to a bleeder circuit 470, using the first standby voltage 132a dividing potential drop as the use comparing with voltage source indicating signal 450, the output terminal of comparer 460 is coupled to control end 430, and comparer 460 is supplied voltage taking the first standby voltage 132a or the first voltage 111a as it.When the anode input of comparer 460 is greater than the input of negative terminal end, its output terminal output positive signal 1, in order to conducting the first field-effect transistor 410, and cut-off the second field-effect transistor 420; Otherwise when the anode input of comparer 460 is less than the input of negative terminal end, or its supply-voltage source is while being 0 volt, its output terminal is exported anti-phase signal 0, in order to end the first field-effect transistor 410, and conducting the second field-effect transistor 420.
Fig. 5 discloses the sequential chart of signal generating circuit 400 its relevant control signals of an embodiment for the present invention.The voltage starting signal that waveform 510 provides for meeting the second source supply 121 of ATX standard, waveform 520 is the sequential of the first voltage 111a, 530 of waveforms are the sequential of voltage source indicating signal 450.In the time that voltage starting signal is positive signal 1, voltage source indicating signal 450 is anti-phase signal 0, now the supply-voltage source of comparer does not start, also be 0 volt, therefore comparer is exported anti-phase signal 0 conducting the second field-effect transistor 420, and standby voltage source 150 is coupled to second source control input end 142 to receive the second standby voltage 121a.In the time that voltage starting signal becomes anti-phase signal 0 by positive signal 1, the positive 12 voltaism potential sources that represent second source supply 121 are about to start, as shown in Figure 5, and after the T1 time, positive 12 voltaism potential sources start start, wherein T1 in ATX standard specification for being less than 1 second.
As shown in Figure 5, positive 12 voltaism potential sources completed after startup with the T2 time, immediately after the T3 time, voltage source indicating signal 450 becomes positive signal 1 by anti-phase signal 0, wherein T2, T3 specification in ATX standard is respectively boundary in 2 milliseconds of (millisecond, negative 3 power seconds of 10) and between 200 milliseconds, and boundary is between 100 milliseconds and 2000 milliseconds.Now comparer output positive signal 1 conducting the first field-effect transistor 410, standby voltage source 150 is coupled to the first power supply control input end 141 to receive the first standby voltage 132a, wherein because the time of T3 is enough long, therefore voltage conversion circuit 130 had time enough before the first field-effect transistor 410 conductings, completed and started and export the first standby voltage 132a.
Fig. 6 discloses the schematic diagram of the external power supply circuit for detecting 340 in the power control unit 140 of an embodiment for the present invention.External power supply circuit for detecting 340 comprises the first resistance 610, the second resistance 620, the 3rd resistance 630, detecting output terminal 640 and detection switch 650.The first resistance 610 is coupled between the end points and detection switch control end 651 that produces the second standby voltage 121a in second source supply 121.The second resistance 620 is coupled between detection switch control end 651 and earth terminal.The 3rd resistance 630 is coupled between the end points and detecting output terminal 640 that produces the first voltage 111a in the first power supply unit 111.Detecting output terminal 640 is in order to export the 3rd switch control signal.The passage of detection switch 650 is to be coupled between detecting output terminal 640 and earth terminal, and its control end is coupled to detection switch control end 651.
Further illustrate, in the time that second source supply 121 is connected in second source slot 120, the second standby voltage 121a produces voltage, the voltage of detection switch control end 651 rises and conducting detection switch 650, therefore the voltage of detecting output terminal 640 is earth terminal voltage, also be 0 volt, and in order to end the 3rd switch 330.And in the time that second source supply 121 is not electrically connected at second source slot 120 and the first power supply unit 111 and is connected in the first power supply slot 110, the first voltage 111a output voltage and the second standby voltage 121a are not had a Voltage-output ability, detection switch control end 651 is coupled to earth terminal by the second resistance 620, be that voltage is 0 volt, cut-off detection switch 650.Detecting output terminal 640 is coupled to the end points of the first voltage 111a by the 3rd resistance 630, and in order to conducting the 3rd switch 330.Therefore, external power supply circuit for detecting 340 can be detected the first power supply unit 111 and second source supply 121 and first and the connection state of second source slot 110,120, and exports the 3rd switch control signal with conducting or cut-off the 3rd switch 330 in its detecting output terminal 640 according to this.
The power supply that Fig. 7 discloses the active circuits in the motherboard 100 of an embodiment for the present invention connects the schematic diagram of configuration.Active circuits 710 has power input 711, gives active circuits 710 to operate when computer installation all needs power supply during in open state or holding state.The anode of the first diode 720 is coupled to the end points that produces the first voltage 111a in the first power supply unit 111, and its negative terminal is coupled to power input 711.The anode of the second diode 730 is coupled to standby voltage source 150, and its negative terminal is coupled to power input 711.
As shown in Figure 7, active circuits can comprise with the chipset of 3.3 voltaism press operations or with the memory modules of 1.5 voltaism press operations, and voltage conversion circuit, the voltage source of the high voltage that power input 711 is inputted, is converted to required 3.3 volts or 1.5 voltaism potential sources.When load voltage value is that 12 volts or the first voltage 111a of 19 volts complete and start and export, for example the first power supply unit 111 connects the first power supply slot 110, or second source supply 121 is connected in second source slot 120 and computer installation completes while start, power input 711 is powered by the first voltage 111a.And in the time that the first voltage 111a does not have Voltage-output ability, 711 of the power inputs standby voltage source 150 by 5 volts powers.The disclosed power supply connection of the present embodiment configuration can completely cut off two voltage sources and avoid mutual electric leakage, and carry out the power supply to active circuits 710 by magnitude of voltage the higher person, and when computer installation is during in open state, active circuits 710 is powered by the first larger voltage 111a of power supply capacity, and therefore system has preferably stability in power supply.
And in another embodiment, power input 711 also can be directly connected in standby voltage source 150, but when computer installation is during in open state, active circuits 710 is powered by the first standby voltage 132a, and its power supply capacity is less than the first voltage 111a.
Fig. 8, for the flow chart of steps that the present invention discloses the mainboard power supply control method of an embodiment, is applicable in computer installation.Motherboard provides a standby voltage source, and control method comprises following steps.
As shown in step 810, whether detecting second source supply connects second source slot.If second source supply does not connect second source slot,, as shown in step 820, standby voltage source is provided by the first standby voltage.If second source supply has connected second source slot, carry out step 830.
As shown in step 830, whether detecting computer installation is open state and exports the first standby voltage.If detecting computer installation is not open state,, as shown in step 840, standby voltage source is provided by the second standby voltage.If computer installation has been open state export the first standby voltage,, as shown in step 820, standby voltage source is provided by the first standby voltage.
Wherein, in step 810, more can comprise the step that produces switch control signal.Switch control signal is in order to conducting or cut-off one switch, standby voltage source being provided by the first standby voltage or can't help the first standby voltage provides, in the time that second source supply connects second source slot, conducting one detection switch makes the described switch of output cut-off of switch control signal.
In addition, in step 830, more comprise the step of detecting a voltage source indicating signal with comparer.If voltage source indicating signal is anti-phase signal, comparer is exported anti-phase signal and is judged that computer installation is for open state; If voltage source indicating signal is positive signal, comparer output positive signal judges that computer installation has been open state.
Effect of the present invention is, by the control circuit on motherboard and power control method thereof, makes motherboard can be applicable to dissimilar power supply unit, can provide client and terminal user in the time selecting power supply unit, to have more flexible selection; Moreover, the disclosed design of the present invention, also can avoid motherboard in order to be suitable for dissimilar power supply unit, and makes the derivative design iterations causing for power supply unit variation of motherboard of same function, not only save R&D costs, also made in stock's management more simple.
Although embodiments of the invention disclose as mentioned above; so not in order to limit the present invention; anyly have the knack of related art techniques person; without departing from the spirit and scope of the present invention; such as work as and can do a little change according to shape, structure, feature and quantity described in the present patent application scope, therefore scope of patent protection of the present invention must be as the criterion depending on this instructions appending claims person of defining.
Claims (12)
1. a motherboard, is suitable for a computer installation, it is characterized in that, described motherboard comprises:
One first power supply slot, is electrically connected for one first power supply unit, and one first voltage is provided;
One voltage conversion circuit, there is a voltage transitions input end and a voltage transitions output terminal, described voltage transitions input end sees through described the first power supply slot and is coupled to described the first power supply unit to receive described the first voltage, and described voltage transitions output terminal provides one first standby voltage, by described the first voltage transitions;
One second source slot, is electrically connected for a second source supply, and one second standby voltage is provided; And
One power control unit, there is one first power supply control input end, a second source control input end and a power supply control output end, described the first power supply control input end is coupled to described voltage transitions output terminal to receive described the first standby voltage, described second source control input end sees through described second source slot and is coupled to described second source supply to receive described the second standby voltage, and described power supply control output end provides a standby voltage source, uses under holding state for described computer installation;
Wherein, when described second source supply is electrically connected described second source slot, described standby voltage source is provided by described the second standby voltage; When described second source supply is not electrically connected described second source slot and described the first power supply unit connects described the first power supply slot, described standby voltage source is provided by described the first standby voltage.
2. motherboard as claimed in claim 1, is characterized in that, described the first power supply unit is the battery of an output dc voltage, or is an AC/DC power converter, the mains voltage source of an interchange is converted to the first voltage of direct current.
3. motherboard as claimed in claim 2, is characterized in that, the load voltage value of described the first voltage is 12 volts or 19 volts.
4. motherboard as claimed in claim 1, is characterized in that, described second source supply is one to meet the power supply unit of ATX standard.
5. motherboard as claimed in claim 4, is characterized in that, described second source supply is connected with described second source slot via a switching winding displacement, and the pin of described second source slot does not comprise the input of the positive 5 voltaism potential sources of ATX standard.
6. motherboard as claimed in claim 1, is characterized in that, described the first voltage is provided by described the first power supply unit or described second source supply, and described power control unit comprises:
One first switch, be coupled between the end points and described standby voltage source that produces described the first standby voltage, and its control end is coupled to one first switch control signal, when described second source supply connects described second source slot, and described computer installation is open state while exporting described the first standby voltage, the first switch described in described the first switch control signal control conducting;
One second switch, be coupled between the end points and described standby voltage source that produces described the second standby voltage, and its control end is coupled to a second switch control signal, when described second source supply connects described second source slot, and when described computer installation is holding state, second switch described in described second switch control signal control conducting;
One the 3rd switch, be coupled between the end points and described standby voltage source that produces described the first standby voltage, and its control end is coupled to one the 3rd switch control signal, when described the first power supply unit connects described the first power supply slot, and when described second source supply does not connect described second source slot, the 3rd switch described in described the 3rd switch control signal control conducting; And
One external power supply circuit for detecting, detects the connection state of described the first power supply unit and described second source supply and described the first power supply slot and described second source slot, and described the 3rd switch control signal of corresponding output.
7. motherboard as claimed in claim 6, is characterized in that, described external power supply circuit for detecting comprises:
One detecting output terminal, in order to export described the 3rd switch control signal;
One first resistance, is coupled between the end points and a detection switch control end that produces described the second standby voltage;
One second resistance, is coupled between described detection switch control end and an earth terminal;
One the 3rd resistance, is coupled between the end points and described detecting output terminal that produces described the first voltage; And
One detection switch, is coupled between described detecting output terminal and described earth terminal, and its control end is coupled to described detection switch control end.
8. motherboard as claimed in claim 1, further comprises:
One active circuits, has a power input, and described computer installation all needs power supply to give described active circuits in the time of open state or holding state;
One first diode, its anode is coupled to the end points that produces described the first voltage, and its negative terminal is coupled to described power input; And
One second diode, its anode is coupled to described standby voltage source, and its negative terminal is coupled to described power input.
9. motherboard as claimed in claim 8, is characterized in that, described active circuits comprises a chipset integrated circuit, or comprises a memory modules.
10. a power control method for motherboard, is applicable to a computer installation, and described motherboard provides a standby voltage source, it is characterized in that, described control method comprises following steps:
Detect a second source supply and whether connect a second source slot, if not, described standby voltage source is provided by one first standby voltage, if so, carries out next step; And
Whether be open state and export described the first standby voltage if detecting described computer installation, if not, described standby voltage source is provided by one second standby voltage, and if so, described standby voltage source is provided by described the first standby voltage.
11. mainboard power supply control methods as claimed in claim 10, it is characterized in that, detect the step whether described second source supply connects described second source slot, more comprise the step that produces a switch control signal, described switch control signal makes described standby voltage source be provided by described the first standby voltage or can't help described the first standby voltage to provide in order to conducting or cut-off one switch, in the time that described second source supply connects described second source slot, conducting one detection switch makes the output of described switch control signal end described switch.
12. mainboard power supply control methods as claimed in claim 10, it is characterized in that, whether detect described computer installation is the step of open state, more comprise the step of detecting a voltage source indicating signal with a comparer, if described voltage source indicating signal is anti-phase signal, described comparer is exported anti-phase signal and is judged that described computer installation is for open state; If described voltage source indicating signal is positive signal, described comparer output positive signal judges that described computer installation has been open state.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101150652 | 2012-12-27 | ||
| TW101150652A TWI503657B (en) | 2012-12-27 | 2012-12-27 | Motherboard and method for power control thereof |
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| Publication Number | Publication Date |
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| CN103901960A true CN103901960A (en) | 2014-07-02 |
| CN103901960B CN103901960B (en) | 2017-09-05 |
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| CN201310072575.XA Active CN103901960B (en) | 2012-12-27 | 2013-03-07 | Motherboard and power control method thereof |
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| CN (1) | CN103901960B (en) |
| TW (1) | TWI503657B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917238A (en) * | 2015-06-10 | 2015-09-16 | 西安海导信息技术有限公司 | Intelligent equipment, and method and device for controlling power supply of equipment |
| CN106557137A (en) * | 2015-09-25 | 2017-04-05 | 酷码科技股份有限公司 | Power supply unit and computer cabinet |
| CN113615030A (en) * | 2020-02-19 | 2021-11-05 | 华为技术有限公司 | Power conversion device and power system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI775068B (en) * | 2020-04-21 | 2022-08-21 | 宏碁股份有限公司 | Power supply device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6459170B1 (en) * | 1999-09-03 | 2002-10-01 | Yazaki Corporation | On-board electric power supply system |
| US20030126480A1 (en) * | 2001-12-29 | 2003-07-03 | Samsung Electronics Co., Ltd. | Portable computer and power controlling method thereof |
| EP2079002A2 (en) * | 2008-01-11 | 2009-07-15 | Fujitsu Siemens Computers GmbH | Mainboard for use in systems with different voltage supply concepts |
| CN102073363A (en) * | 2009-11-23 | 2011-05-25 | 英业达股份有限公司 | Power management system |
| CN102129281A (en) * | 2010-01-20 | 2011-07-20 | 宏碁股份有限公司 | Dynamic regulation circuit and computer system with the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100424484B1 (en) * | 2001-07-05 | 2004-03-24 | 엘지전자 주식회사 | A power supply for central processing unit |
| JP2004007950A (en) * | 2002-04-15 | 2004-01-08 | Fuji Electric Holdings Co Ltd | Switching power unit |
| TWI410787B (en) * | 2009-11-11 | 2013-10-01 | Universal Scient Ind Shanghai | Power control unit |
| TW201202911A (en) * | 2010-07-09 | 2012-01-16 | Giga Byte Tech Co Ltd | Motherboard with energy saving function |
-
2012
- 2012-12-27 TW TW101150652A patent/TWI503657B/en active
-
2013
- 2013-03-07 CN CN201310072575.XA patent/CN103901960B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6459170B1 (en) * | 1999-09-03 | 2002-10-01 | Yazaki Corporation | On-board electric power supply system |
| US20030126480A1 (en) * | 2001-12-29 | 2003-07-03 | Samsung Electronics Co., Ltd. | Portable computer and power controlling method thereof |
| EP2079002A2 (en) * | 2008-01-11 | 2009-07-15 | Fujitsu Siemens Computers GmbH | Mainboard for use in systems with different voltage supply concepts |
| CN102073363A (en) * | 2009-11-23 | 2011-05-25 | 英业达股份有限公司 | Power management system |
| CN102129281A (en) * | 2010-01-20 | 2011-07-20 | 宏碁股份有限公司 | Dynamic regulation circuit and computer system with the same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917238A (en) * | 2015-06-10 | 2015-09-16 | 西安海导信息技术有限公司 | Intelligent equipment, and method and device for controlling power supply of equipment |
| CN104917238B (en) * | 2015-06-10 | 2017-07-04 | 西安海导信息技术有限公司 | Method, device and smart machine that control device is powered |
| CN106557137A (en) * | 2015-09-25 | 2017-04-05 | 酷码科技股份有限公司 | Power supply unit and computer cabinet |
| CN113615030A (en) * | 2020-02-19 | 2021-11-05 | 华为技术有限公司 | Power conversion device and power system |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201426272A (en) | 2014-07-01 |
| TWI503657B (en) | 2015-10-11 |
| CN103901960B (en) | 2017-09-05 |
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