CN1092878A - Electric-saving computer system with control power supply supplied to peripherals - Google Patents
Electric-saving computer system with control power supply supplied to peripherals Download PDFInfo
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- CN1092878A CN1092878A CN93103148A CN93103148A CN1092878A CN 1092878 A CN1092878 A CN 1092878A CN 93103148 A CN93103148 A CN 93103148A CN 93103148 A CN93103148 A CN 93103148A CN 1092878 A CN1092878 A CN 1092878A
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Abstract
A kind of electric-saving computer system with control power supply supplied to peripherals, by detecting the activity of peripherals, in case when detecting the activity of peripherals and being in battery saving mode, this system is about to supply the dump of peripherals, to reach the effect of maximum power saving.
Description
The present invention turns off peripherals to reach the device of saving the energy relevant for having automatically with computer processor when not using.
System activity monitor (SYSTEM ACTIVITY MONITOR) (for example ACER M6357 and INTEL 82347) is a kind of device that is widely used for detecting computer activity situation, its function is to find in the computer system monitored is during a setting not such as keyboard when its, Genius mouse, hard drive, floppy disk driver, serial port, parallel port, equipment such as monitor carry out access activity, be about to its control signal and be set in the battery saving mode state, afterwards, when detecting computer system above-mentioned arbitrary equipment had access activity, finish its battery saving mode at once and control signal is established the normal mode state of getting back to, so back and forth running.
Notebook computer is exactly that the application system active monitor detects the control signal that the computer active state is sent, start so-called system management interrupt (SMI, System Management Interrupt) or maskable does not interrupt (NMI, Nonmaskable Interrupt) and so on interruption, assigning instruction by interrupt service routine (Interrupt Service Routine) carries out in regular turn and stores capsule information in the device of the loss of memory not of cutting off the power supply as hard drive etc., reduce the processor operation frequency, turn off vision signal and the background light (Back light) of giving display, setting member enters battery saving mode and turns off power supply or the like the step that part does not need force device, reaches purpose of power saving.
Though common microprocessor all has not maskable interruption and general interrupt function can supply to utilize, but at picture Microsoft's Window (Microsoft Window), operating systems such as the OS/2 of IBM Corporation or UNIX, maskable interruption and general interruption often are not used as other purposes uses, make the priority of power saving computer service routine reduce, not just to be performed very slowly after power saving control signal enters, be exactly to lose effectiveness at all, cause the electricity-saving function of computer can't bring into play and be a mere formality.
Eliminated this shortcoming though have the microprocessor of system management interrupt, but at the CPU (central processing unit) (CPU) of INTEL such as 8086,80186,80286,80386SX, 80386DX, and the CPU (central processing unit) of other manufacturers also may not have this device, moreover there is the CPU (central processing unit) of this device all more expensive than the peer, more prior is that some control chips are inner as system control chip, display control chips etc. need have the design of electricity-saving function in order to cooperate the power saving interrupt service routine, price is also than the height of peer, thus, for this power saving way of the very big PC of price competition pressure very economical not just.
In addition, though notebook computer is paid attention to the design of power saving usually, but notebook computer is carried out display power saving action, be to turn off vision signal and background light aspect LCD, also only turn off vision signal for external monitor, and the filament of monitor, biasing scanning high voltage or the like account for the element of 80 percent electric power and can't close fully, let alone to waste electric power, one 14 inches monitor is at the start electric power of 50W to 70W of the time will using up according to estimates!
Have recently and utilize the software interruption service routine to issue an order, switch its video synchronization signal, allow the pick-up unit in the monitor can close monitor part power supply according to this, reach electricity-saving function to display chip group with electricity saver.In order to recover original show state when battery saving mode is got back to normal mode, monitor must possess another group power supply, and so that the detection loop of electric power to its inside to be provided at any time, this group power supply supply has also caused the waste of the energy.Need the monitor of extra detection loop and two groups of power supply supplies, not only do not have in the past, even also seldom see now, just not general certainly, price also must be than general monitor height.And this electricity saving method just can't reach power saving effect certainly if be used on the common monitor because of turning off monitor power supply.
Notebook computer is turned off the method for element power supply under battery saving mode, be on its substrate with the relay that is subjected to power save signal control and so on device with direct supply with do not need the element of electric power to separate.The computer components aspect, though the power consumption number has reduced, the power supply capacity of Power Supply Unit does not reduce, and causes the efficient of Power Supply Unit to reduce, and much electricity has been wasted.Though there is a kind of Power Supply Unit to be divided into two groups of power supplys of major-minor now, when power saving, turn off primary power, keep auxiliary power, but this type of control information is to be provided by extra proprietary control line, not only increased cost, and because use extra special-purpose Controlling Source, hardware compatibility also there is problem.
If there is an electricity-saving system can reach following four requirements, not only power saving purpose can reach, and price on the contrary can be more cheap than existing system, and use existing element or equipment, do not need to buy more again.
1. use the central processing unit that does not need the system management interrupt function.Do not need to control electricity saver with interrupt service routine, power-saving control just can not be blocked or even lose function;
2. all power supplys that can turn off peripherals (for example monitor);
3. except system activity monitor, do not need chipset, element and the monitor of special electricity-saving function;
4. the part power supply that can turn off the computer system charger, the energy conversion efficiency of raising charger reaches and further saves the energy.
In order to solve the shortcoming of existing electricity saving method, and reach top listed four requirements, mainly should consider following technical matters:
(1) power-saving control transmission of Information:
Since do not issue an order by the power saving interrupt service routine, is so how will economize electrical information sent to outside the computer via keyboard, Genius mouse, serial port, parallel port or monitor ports? above mention, when the system activity monitor unit detect to find in computer is during one sets that not keyboard etc. done access activity, will enter battery saving mode, was this moment, computer got back to normal mode again if will economize electrical information sends through keyboard etc.? this is conflicting with the power saving purpose.In addition, the compatible computermaker of IBM Corporation is in order to increase compatibility, except software itself, all must follow for standard such as each pin of joints such as keyboard, Genius mouse, serial port, parallel port, monitor, hard drive, floppy disk driver, each suddenly part supplier must observe too.Under this situation, how about reach the purpose of transmission information? signal encoding of the present invention unit is above-mentioned two problems of solution and establishes.
(2) power-saving control of monitor:
Monitor is an equipment that separates with PC, and its electric power system of providing for oneself and attaching plug is arranged.Early stage monitor Ceng Youli is its power supply source with AC socket additional in the host computer Power Supply Unit, but its purpose also only is to save and takies extraneous socket, and energy and computer open simultaneously moving, close, do not have extra control device.How common monitor to be carried out the power supply open and close with power saving control signal? this just must have individual control module to provide power supply to turn off the power supply of monitor to monitor at computer when knowing that computer enters battery saving mode during for normal mode.
(3) transmission of computer power control signal:
Above mentioning ibm personal computer all has standard for each pin of each joint, and the power supply supply joint on the machine plate is no exception.The pin of power connection is defined as follows table:
Table 1
The pin definition
1 POWERGOOD
2 +5V
3 +12V
4 -12V
5 GROUND (ground connection)
6 GROUND (ground connection)
7 GROUND (ground connection)
8 GROUND (ground connection)
9 -5V
10 +5V
11 +5V
12 +5V
It is stable that POWERGOOD is that notice offers the direct current of computer by Power Supply Unit, or the power supply of Power Supply Unit information such as will end, and the control loop in the computer just can be done the origination action before the running in view of the above or do preliminary work before the shutdown.Normally reach in the shutdown in order to ensure the origination action of computer and can not lose the data that should not lose, POWERGOOD and+very important sequential relationship is arranged between the 5V power supply.+ 5V is that most of computer components is needed, + 12V ,-12V and-5V is the necessary power supply of modulating/demodulating (MODEM), all must possess under the prerequisite of function own at every branch connecting pin, how does electrical information is counter give Power Supply Unit and requires its to cooperate the measure of doing power saving economizing again?
Power supply signal coding unit of the present invention is and addresses this problem and establish.
(4) control of computer power:
Under battery saving mode, turn off part power supply, or change use part in the computer power feeder and make it to become the high-level efficiency element and all can reach this requirement, relative cost also can improve, and its limit is arranged.How to make total system can economize more power under these two kinds of existing functions, this is the purpose of design of AC/DC power supply unit of the present invention.
Learn that by above-mentioned one of the object of the invention is to provide a kind of power-saving control mode that need not use interrupt service routine to control.
Two of the object of the invention is to see through the PC port power-saving control information is sent to outside the PC, and can not cause the running confusion of battery saving mode, also can not cause the compatible problem of PC.
Three of the object of the invention is to cooperate province's electrical information that terminating machine or monitor are done power-saving control, but does not need the terminating machine or the monitor of special power saving.
Four of the object of the invention is to utilize existing computer power supply joint will economize electrical information and is sent on the computer power feeder, but do not influence computer unlatching, close or usual running.
Five of the object of the invention is to utilize the computer power feeder, cooperates to economize electrical information, obtains higher efficient, but does not change the surface structure of existing power supply feeder.
Other purposes of the present invention and detailed technical characterictic can further be understood in below in conjunction with the description of the drawings.
Show technical characterictic of the present invention for clear, below only each main coherent signal of the present invention is illustrated in conjunction with the accompanying drawings.
Fig. 1 is the system block diagrams of first embodiment of electric-saving computer system of the present invention;
Fig. 2 is the circuit diagram of one of Fig. 1 coding unit;
Fig. 3 is the circuit diagram of one of Fig. 1 power control unit;
Fig. 4 is the working timing figure of Fig. 1 power control unit;
Fig. 5 is the system block diagrams of second embodiment of electric-saving computer system of the present invention;
Fig. 6 is the circuit diagram of one of Fig. 5 coding unit;
Fig. 7 is the circuit diagram of one of Fig. 5 power control unit;
Fig. 8 is the computer cold boot working timing figure of second embodiment;
Fig. 9 is the working timing figure that the computer of second embodiment entered, left battery saving mode;
Figure 10 is the working timing figure that the computer of second embodiment shuts down when battery saving mode.
Shown in figure, system of the present invention mainly comprises:
One monitor signal coding unit 21, one monitor power supply control module 26, one power supply signal coding unit 27, one ac/dc power supply unit 28, wherein monitor signal coding unit 21, power supply signal numbered cell 27 and ac/dc power supply unit 28 are on host computer, 26 of monitor power supply control modules can be and are attached on the host computer, also can be a control enclosure that adds.
The power save signal production process is as follows:
As shown in Figure 1, power save signal EP-SY0, EP-SY1, EP-SY2, EP-CLOCK# and EP-POWER# etc. are provided by system activity monitor.The system activity method for monitoring is as described in the preface, and has been a disclosed technology, and no longer herein stating is example with ACER M6357 chipset only more, outlines the relation of its power save signal and computer system signal variation when normal mode and battery saving mode.
EP-SY0, EP-SY1, EP-SY2, EP-CLOCK# and EP-POWER# are brought by VP0, VP1, VP2, VP3, the VP4 of the VP port of M6357 respectively, they are the initial value of a hardware setting when M6357 rigidly connects energising, except the launch computer formula reset, otherwise system is just keeping after startup always.In addition, the VP port enters battery saving mode has its correspondence when (M6357 is called the DOZE/SLEEP pattern to this pattern) temporary setting apparatus at M6357, can be made as " 0 " or " 1 " when the system start-up according to the characteristic of power-saving control element.Following table is exactly that native system is to these five setting values that signal gave.
Table 2
Power save signal title M6357 title initial value normal mode value battery saving mode value
EP-SY2 VP4 1 1 0
EP-SY1 VP3 1 1 1
EP-SY0 VP2 1 1 0
EP-POWER# VP1 1 1 0
EP-CLOCK# VP0 1 1 0
EP-CLOCK# is used for reducing the CPU (central processing unit) cpu frequency and uses, because of not within the scope of the present invention, so seldom state.
Shown in table 21 and 0 presentation logic state are represented the TTL(transistor-transistor logic respectively at this) noble potential and electronegative potential value.System's each power save signal when normal mode is sent the normal mode value according to table 2, when system enters battery saving mode, then sends the battery saving mode value.Modern is that example is illustrated with EP-SY2: EP-SY2 is a noble potential when booting computer, computer finishes to start the back, and it still remains on noble potential, EP-SY2 becomes electronegative potential by noble potential at once when computer enters battery saving mode, if computer is got back to normal mode by battery saving mode, EP-SY2 is upgraded to noble potential from electronegative potential immediately.
The coding running of monitor signal coding unit is as follows:
As shown in Figure 1, normal video vertical synchronizing signal V-SYNC and horizontal-drive signal H-SYNC (or are video chipset by display controller, Video Chipset) delivers to the monitor signal coding unit, in addition, EP-SY2, EP-SY1, EP-SY0 power save signal are also sent here by the system activity monitor unit.Through sending vertical synchronizing signal V-OUT and the horizontal-drive signal H-OUT that had modulated after the coding of this unit.These two signals are added the red, green, blue trichromatic vision frequency signal of being come by display controller and are given the monitor power supply control module by the computer video wiring.
Fig. 2 is the wiring diagram of monitor signal coding unit.Below be its running explanation: the normal mode value of EP-SY2, EP-SY1, EP-SY0 is respectively (1,1,1).It is that 0,212 the 6th pin are that 0,213 the 11st pin are 0 that these values cause 211 the 3rd pin, and make 216 locks and 217 locks close (OFF), and 0 value of 211 the 3rd pin and 212 the 6th pin is impelled 214 locks and 215 lock conductings (ON), so V-OUT and H-OUT are respectively the signals of V-SYNC and H-SYNC.When system during at battery saving mode EP-SY2, EP-SY1, EP-SY0 be (0,1,0), it is that 1 and 212 the 6th pin are 1 that 0 value of EP-SY2 and EP-SY0 is impelled 211 the 3rd pin, thereby 214 locks and 215 locks have been closed respectively, but 216 locks and 217 locks have also been opened simultaneously respectively, because this moment, EP-SY1 was 1, become 0 and be added on 216 the 9th pin and 217 the 12nd pin after anti-phase through 213 locks, impel V-OUT and H-OUT to be 0 value, this just is used for the information that allows the monitor power supply control module know during battery saving mode.More than explanation is generalized into table 3.Resistance R 1 on the circuit, R2, R3, R4 are as eliminating clutter between each shutter opening and closing and preventing that two export the usefulness of the mutual short circuit of gatehouse of joining.
Table 3
EP-SY2 EP-SY1 EP-SY0 V-OUT H-OUT
Normal mode 111 V-SYNC H-SYNC
Battery saving mode 01000
Power saving control signal EP-SY2, EP-SY1, EP-SY0 only use two kinds (1,1,1) and (0,1,0) of its eight kinds of combinations expression as normal mode and battery saving mode herein, when system had how different information to transmit, this unit also can produce the modification as table 4.
Table 4
EP-SY2 EP-SY1 EP-SY0 H-OUT V-OUT pattern
00011 is uncertain
001 Z 1 are uncertain
01000 battery saving modes
011 H-SYNC 0 are uncertain
1001 Z are uncertain
101 Z Z are uncertain
1100 V-SYNC are uncertain
111 H-SYNC V-SYNC normal modes
Red, green, blue in the vision signal in this unit without any processing, so be not subjected to this cell influence.H-SYNC and V-SYNC are also directly sent by H-OUT and V-OUT under normal mode, do not influence the usefulness of normal synchronized, though because the change state is 0 under battery saving mode, the power supply of monitor will be monitored the device power control unit fully and turn off when battery saving mode.Get back to normal mode from battery saving mode, H-SYNC and V-SYNC return again at once, and therefore the running of whole synchronizing signal is all unaffected.Because power saving control signal is just to encode with hardware mode with vision signal after video chipset is sent vision signal, does not need the computer central processing system to send instruction and do, in addition so do not have the access action of CPU (central processing unit) CPU to peripherals.Therefore can not detected by the system activity monitor unit, foregoing with regard to not taking place certainly because of sending the contradiction thing generation of province's electrical information misoperation.
The running of monitor power supply control module is as follows:
As shown in Figure 1, give the monitor power supply control module through the signal after the monitor signal coding unit coding by the computer video wiring.H-OUT and V-OUT receive monitor through the red, green, blue trichromatic vision frequency signal that is reduced into original signal H-SYNC and V-SYNC and unprocessed mistake after the decoding signals and by the joint, the wiring that are complementary with PC in these signals.Aspect in addition, decoding signals is then delivered to the monitor power supply controller by the battery saving mode signal (RLY1-CNT) that H-OUT and V-OUT detect, so that the power supply supply of control monitor.Therefore monitor power supply control module separated into two parts again, i.e. decoding signals and monitor power supply controller, its detailed circuit is as shown in Figure 3.U3 is 74121 single-ended steady oscillation devices (Monostable multivibrator) of transistor-transistor logic circuit (TTL), and A1 and A2 are the triggering input ends of its vibration, receive H-OUT and V-OUT respectively.When these two input ends do not have any to be changed by 1 to 0 signal, the Q of KLY1-OUT(U3) the output terminal current potential remains on 0 always.In case when two input ends had any to change by 1 to 0, KLY1-OUT just produced 1 current potential and continues one and just reduces to 0 automatically by the time that R5 and C1 determined, this time relationship is:
TW＝C1R5 1n2≈0.7C1R5
If C1=1 μ is f, R5=47K Ω is TW=32.9ms then.Vertical synchronizing signal is the slowest person of frequency in the general monitor synchronous sinals, and its value all more than 60Hz, approximates the 16.6ms time, and in other words, every 16.6ms vertical signal just arrives once.Because of the value of TW greater than it, so remain on 1 RLY1-CNT output and do not have enough time to reduce to 0 as yet because of last vertical signal triggers when a certain vertical signal comes, just triggered by this vertical signal again, therefore, as long as vertical signal is sent here constantly, RLY1-CNT output just necessarily remains on 1 state.
As shown in Table 3, system H-OUT and V-OUT under normal mode have the signal of H-SYNC and V-SYNC, so RLY1-CNT output remains on 1 because of H-SYNC and V-SYNC constantly trigger it under normal mode.In case system enters battery saving mode by normal mode, H-OUT and V-OUT all reduce to 0, the A1 of U3 and A2 no longer include pulse signal and trigger it until battery saving mode between tailend time beginning thus, reduce to 0 by 1 during TW=32.9ms after the signal that RLY1-CNT just in the end triggers it leaves.
This relation can be found out by clear in the sequential of Fig. 4.H-OUT is the signal of H-SYNC when normal mode, hundreds of times of its frequencies are to V-SYNC, so when if V-SYNC comes, can allow RLY1-CNT remain on 1, certainly H-SYNC more can make RLY1-CNT remain on 1, only gets the slower V-SYNC of frequency herein and describes.
Can summarize value such as the table 5 of RLY1-CNT under normal mode and battery saving mode by above illustrating.
Table 5
RLY1-CNT
Battery saving mode 0
In the monitor power supply controller, the signal of RLY1-CNT is used to the large power, electrically source control device of control such as relay or solid-state relay (SSR) etc., the input of the power supply here extraneous any electric power input of can serving as reasons, and power supply output can offer monitor as its power source.So RLY1-CNT under normal mode 1 and under battery saving mode 0, just in time be the power supply of open and close monitor.
In this unit, red, green, blue and H-OUT, V-OUT are directly led to the output on the right by the input on the left side.Though H-OUT and V-OUT receive the input of U3, this sheerly imports, so generally speaking, all vision signals are not subjected to any influence on electric in this unit.
The coding action of power supply signal coding unit is as follows:
As shown in Figure 5, the POWERGOOD signal of bringing from the ac/dc power supply unit and mix at the power supply signal coding unit by the power save signal EP-POWER# that the system activity monitor unit is sent here.Economizing electrical information utilizes POWERGOOD to be returned to the ac/dc power supply unit once more.Fig. 6 and Fig. 7 are respectively that the present invention places the power supply signal coding unit and the detailed wiring diagram ac/dc power supply unit.At this its running is described in the lump for convenience of description.Fig. 8 is that this Unit two enters normal mode does not enter battery saving mode to computer cold shutdown centre sequential chart by the computer cold boot.Here the POWERGOOD that is stressed that to fully transmit the information of original POWERGOOD, can not slip up to some extent.Its detailed operation situation is as follows:
When the computer cold boot, specification according to the ibm personal computer Power Supply Unit, Power Supply Unit must earlier give different titles by the POWER-UP(that represent power supply whether stablize for the purpose of distinguishing) signal wire sends 0, and 100ms just changes over 1 to 500ms after definite+5V stablizes.And when cold shutdown, must be before+5V begins to lower at least 1ms will become 0 to POWER-UP by 1.
When the firm cold boot of computer and+POWER-UP was 0 when 5V did not reach as yet and stablizes, so it is 0 that 2812 unlatchings impel the POWERGOOD signal wire, since POWER-UP remain on 0 for up to more than the 100ms, System Operation this moment, monitor unit is finished already to the hardware-initiated of EP-POWER#, so EP-POWER# 1 the value that is in as shown in table 2.Same 271 have also entered its stable vibration and have sent clock signal (CLOCK).To be 0 value deliver to PWG through D type flip-flop 275 to POWERGOOD does the still unstabilized indication of IK power supply for system and use.When POWER-UP by 0 be upgraded to that 1 expression power supply supplies with+when 5V stablize, 2812 locks were switched off, and are output into high impedance, were 1 because of EP-POWER# at this moment, also made 273 and 274 to turn off.The signal of POWERGOOD is just drawn high 1 state by resistance R 8 and R10, and this information of 1 also is transferred to PWG and gives computer components through 275, and is stable in order to the voltage of expression+5V.This period P WG is that if 271 oscillation frequency are 32768Hz, then maximum delay time t1 is 30.5 μ s, and is little a lot of compared with 100ms, can ignore by 271 frequency decision to the maximum delay time of POWER-UP.As can be known after power supply stable electrical brain system enters normal mode, POWERGOOD and PWG remain on 1 by above analysis.
The cold shutdown of power supply, POWER-UP 1ms before+5V begins to become at 0 o'clock by 1, and because of 2812 locks are opened, it is 0 that POWERGOOD is left behind, and this information of 0 sends PWG to by 275 D type flip-flop equally, and notice computer components power supply is about to close.This moment, PWG also was 30.5 μ s to t2 maximum time delay of POWER-UP, accounted for 3 percent compared with 1ms, equally also can ignore.If the delay of system's time to this has special requirement, can increase 271 frequency, for example under the 100KHz frequency, just drop to 10 μ
So computer power by cold boot in cold shutdown process, POWERGOOD can the complete status information whether the power supply unit power supply is stablized send computer components to.
Fig. 9 is that computer enters the sequential chart that battery saving mode returns this two cell operation in the normal mode process afterwards by normal mode.EP-POWER# its value when normal mode is 1, POWERGOOD is not had any influence; But its value reduces to 0 by 1 when entering battery saving mode, has opened 273 locks, will through 272 locks anti-phase oscillator signal deliver to 274 the 4th pin and control the switch of 274 locks, so promptly caused the pulse signal of battery saving mode period P OWERGOOD among Fig. 9.Also because of 272,273 and 274 locks postpone the td time, its value is this signal except anti-phase with clock signal C LOCK:
td＝10ms+15ns＝40ns（min）
The D input of this value enough 275 is to the retention time (HOLD TIME) of C.So this moment, though POWERGOOD was a pulse signal, because of POWERGOOD when the upper limb of clock signal be 1 and the retention time also reach, so PWG also remains on 1 in the same old way, being entered power down mode influences.When normal mode is got back to by battery saving mode by system, EP-POWER# changes to 1,273 and 274 by 0 and is switched off simultaneously, and POWERGOOD also gets back to 1 original state, and PWG is also without any change certainly.Therefore the signal of this expression power supply stability state of PWG does not return normal mode and is affected because of system enters battery saving mode by normal mode.POWERGOOD is 1 when normal mode then, when battery saving mode for and the signal of the pulse same frequency that comes out of 271 vibrations.The joint of this pulse signal process power supply unit is fed back into the power supply signal demoder of power supply unit, shown in Fig. 7 circuit.
2811 are closed when this pulse is 1, and slowly to+5V charging, C10 is charged to by resistance R 11 for capacitor C 10+and the required time of 5V is about 5RC, and in other words, POWERCNTL will reach 1 state, needs 5 * 47 * 10 approximately as the value according to Fig. 7
3* 1 * 10
-6=235 * 10
-3Sec=235ms.
But, when only being charged to a little voltage, C10 just discharged because another of POWERGOOD is half cycle just arrival within 15.25 μ s of 0.The voltage that C10 can fill is
V
POWBRCNTL=5(1-e
－t/RC)
=5(1-0.9996）≈OV
Its value is almost 0 volt, and just 0 of logic, so when POWERGOOD was the pulse signal of 32768Hz, POWERCNTL maintained 0 under battery saving mode always.Under POWERGOOD during at normal mode was 1 state, also charging was 1 to POWERCNTL to C10 because of R11.
To be computer enter the sequential chart that cold shutdown takes place when the battery saving mode battery saving mode then by normal mode to Figure 10.Enter battery saving mode by normal mode and above describing, only the situation that cold shutdown takes place when the battery saving mode is explained here.
When the computer power feed unit with POWE-UP by 1 change into 0 expression power supply when being about to close 2812 locks be opened, though this moment, POWERGOOD was a pulse signal because EP-POWER# controls, but because 274 are TTL elements of opener lock (OPEN COLLECTOR), the characteristics of this element be when closing its output by other elements decisions of joining.When 2812 locks are opened, because making, input grounding is output as 0, just meet the state of sending out by POWER-UP control.And the signal of POWERGOOD changes at 0 o'clock and is forced by pulse immediately that to draw be 0 at POWER-UP, because of POWERGOOD just is being connected on 275 D input end, so after the delay of the longest 30.5 μ s, PWG also reduces to 0 by 1.This is the same with the situation from the normal mode shutdown that prosthomere is described.So the information of the power supply unit of PWG representative+5V voltage steady state (SS) is not influenced because of the adding of power save signal.
Table 6 is the value of all signals under each pattern in power supply signal coding unit and the ac/dc power control unit to be done an arrangement form.
Table 6
EP-POWER# POWER-UP POWERGOOD PWG POWERCNTL
Cold boot moment 10000
Normal mode 11111
Battery saving mode 01 pulses 10
Cold shutdown moment 10000
Can be clear that from table 6 POWERCNTL just is 1 when the normal mode only, and when other cold boots moments, cold shutdown moment and battery saving mode, be 0.The present invention promptly is with the usefulness of this signal as the power supply switching of controlled device, and situation will be in next joint explanation in detail.Because of the moment of cold boot and cold shutdown very short, so be negligible, also therefore be contained in the POWERCNTL and economize electrical information for device as control.By above description as can be known the power supply signal coding unit not only can pass to the ac/dc power control unit by POWERGOOD with economizing electrical information, more can be when booting computer or will pass to computer system by the information whether the representative power supply that the ac/dc power control unit is sent is stablized during shutdown and use to relevant elements.
The running of ac/dc power control unit is as follows:
As shown in Figure 5; the POWERGOOD that has mixed with power save signal EP-POWER# in the power supply signal coding unit gets back to the ac/dc power control unit with the power saving information band; decoding signals in the unit restores power save signal thus, and power unit is carried out power-saving control.Operation situation about decoding signals has been done detailed explanation in prosthomere.Visible power save signal POWERCNTL is along with computer system enters battery saving mode and changes into 0 by 1 from normal mode from table six.Only offered the AC power that monitor power supply is used on the power supply unit for being attached in the past, and can control some high-power relays or solid-state relay by POWERCNTL and realize on-off action.
In addition, the fan that uses for computer system heat radiation in the power supply unit reduces because of the power consumption of computer system element when battery saving mode and does not have also can cut out by POWERCNTL under the heat dissipation problem.
More than set forth technology of the present invention with preferred embodiment and constituted and operating principle.From the above, technical conceive of the present invention also is applicable to the keyboard 22 shown in control such as Fig. 1 and Fig. 5, Genius mouse 23, printer 24 etc., makes it in power down source, battery saving mode ShiShimonoseki to save the more energy.
Therefore, the power-saving control that is beyond one's reach before every in the ac/dc power control unit all can reach in the present invention as previously described.Thereby, do not breaking away under the category situation of the present invention, can do some corresponding techniques and revise, it is foundation that technical characterictic of the present invention is worked as with claims.
Claims (8)
1, a kind of method with electric-saving computer system control power supply supplied to peripherals of control power supply supplied to peripherals is characterized in that comprising:
Utilize an activity monitoring unit, monitor the activity situation of electric-saving computer system, and produce the status signal of an expression peripherals activity situation peripherals;
Utilize a peripheral operation signal generation unit, produce an operation signal for the peripherals use;
Utilize a coding unit, encoded from the status signal of activity monitoring unit and with described operation signal described, to produce a coded signal from peripheral operation signal generation unit;
Utilize a decoding unit, described coded signal from coding unit is decoded, to produce a power control signal; And respond described power control signal from decoding unit, supply with the required power supply of peripherals with the control power supply unit.
2, a kind of method with electric-saving computer system control power supply supplied to peripherals of control power supply supplied to peripherals is characterized in that comprising:
Utilize an activity monitoring unit, monitor the activity situation of electric-saving computer system, and produce the status signal of an expression peripherals activity situation peripherals;
Respond the status signal of described activity monitoring unit, utilize the status signal processing unit that always is connected in succession on this activity monitoring unit, to produce a power control signal; And
Respond described power control signal, stop to supply with the required power supply of peripherals with the control power supply unit from the status signal processing unit.
3, a kind of method with electric-saving computer system control power supply supplied to peripherals of control power supply supplied to peripherals is characterized in that comprising:
When providing peripheral required power supply to be stable state, output one expression power supply has been the signal of steady state (SS);
Utilize an activity monitoring unit, monitor the activity situation of electric-saving computer system, and produce the status signal of an expression peripherals activity situation peripherals;
Utilize a coding unit, described status signal from the activity monitoring unit is encoded, to produce a coded signal;
Utilize a decoding unit, described coded signal and described expression power supply from the power supply unit output signal that has been steady state (SS) from coding unit decoded, to produce a power control signal; And
Respond described power control signal, supply with the required power supply of peripherals with the control power supply unit from decoding unit.
4, a kind of method with electric-saving computer system control power supply supplied to peripherals of control power supply supplied to peripherals is characterized in that comprising:
When providing peripheral required power supply to be stable state, output one expression power supply has been the signal of steady state (SS);
Utilize an activity monitoring unit, monitor the activity situation of electric-saving computer system, and produce the status signal of an expression peripherals activity situation peripherals;
Utilize a coding unit, make it to be provided with one in order to accepting the input end that another expression power supply has been steady state (SS), this coding unit is in order to being encoded described status signal from the activity monitoring unit, and exports a coded signal via this input end;
Utilize a decoding unit, described coded signal and described expression power supply from the power supply unit signal that has been steady state (SS) from coding unit decoded, be the signal of steady state (SS) and produced a power control signal to produce described another expression power supply; And
Respond described power control signal, supply with the required power supply of peripherals with the control power supply unit from decoding unit.
5, a kind of electric-saving computer system with control power supply supplied to peripherals is characterized in that this electric-saving computer system comprises:
One power supply unit is in order to provide peripherals required power supply;
One activity monitoring unit in order to monitoring the activity situation of electric-saving computer system to peripherals, and produces the status signal of an expression peripherals activity situation;
One peripheral operation signal generation unit is in order to produce an operation signal for the peripherals use;
One coding unit is in order to be encoded from the status signal of activity monitoring unit and with described operation signal from peripheral operation signal generation unit described, to produce a coded signal;
One decoding unit is in order to be decoded described coded signal from coding unit, to produce a power control signal; And
One power control unit responds described power control signal from decoding unit, supplies with the required power supply of peripherals with the control power supply unit.
6, a kind of electric-saving computer system with control power supply supplied to peripherals is characterized in that this electric-saving computer system comprises:
One power supply unit is in order to provide peripherals required power supply;
One activity monitoring unit in order to monitoring the activity situation of electric-saving computer system to peripherals, and produces the status signal of an expression peripherals activity situation;
One status signal processing unit directly connects described activity monitoring unit, and responds the status signal of described activity monitoring unit, to produce a power control signal; And
One power control unit responds described power control signal from the status signal processing unit, stops to supply with the required power supply of peripherals with the control power supply unit.
7, a kind of electric-saving computer system with control power supply supplied to peripherals is characterized in that this electric-saving computer system comprises:
One power supply unit, in order to providing peripherals required power supply, and this power supply unit is provided with in order to provide the expression power supply to be an output terminal of steady state (SS);
One activity monitoring unit in order to monitoring the activity situation of electric-saving computer system to peripherals, and produces the status signal of an expression peripherals activity situation;
One coding unit is in order to be encoded described status signal from the activity monitoring unit, to produce a coded signal;
One decoding unit is in order to described coded signal and described expression power supply from the power supply unit output signal that has been steady state (SS) from coding unit decoded, to produce a power control signal; And
One power control unit responds described power control signal from decoding unit, supplies with the required power supply of peripherals with the control power supply unit.
8, a kind of electric-saving computer system with control power supply supplied to peripherals is characterized in that this electric-saving computer system comprises:
One power supply unit, in order to providing peripherals required power supply, and this power supply unit is provided with in order to provide the expression power supply to be an output terminal of steady state (SS);
One activity monitoring unit in order to monitoring the activity situation of electric-saving computer system to peripherals, and produces the status signal of an expression peripherals activity situation;
One coding unit is provided with in order to accept another expression power supply and has been an input end of steady state (SS), and this coding unit is in order to being encoded described status signal from the activity monitoring unit, and exports a coded signal via this input end;
One decoding unit, in order to described coded signal and described expression power supply from the power supply unit signal that has been steady state (SS) from coding unit decoded, be the signal of steady state (SS) and produced a power control signal to produce described another expression power supply; And
One power control unit responds described power control signal from decoding unit, supplies with the required power supply of peripherals with the control power supply unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93103148A CN1043930C (en) | 1993-03-20 | 1993-03-20 | Power-saving computer system with control power supply supplied to peripherals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93103148A CN1043930C (en) | 1993-03-20 | 1993-03-20 | Power-saving computer system with control power supply supplied to peripherals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1092878A true CN1092878A (en) | 1994-09-28 |
| CN1043930C CN1043930C (en) | 1999-06-30 |
Family
ID=4984491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93103148A Expired - Lifetime CN1043930C (en) | 1993-03-20 | 1993-03-20 | Power-saving computer system with control power supply supplied to peripherals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1043930C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100440084C (en) * | 2004-11-10 | 2008-12-03 | 印加信息技术有限公司 | Apparatus for controlling standby power |
| CN104520783A (en) * | 2012-03-26 | 2015-04-15 | 米尔普罗斯有限公司 | Standby power interception apparatus for computer and computer peripheral device |
| CN105049936A (en) * | 2015-08-13 | 2015-11-11 | 海信集团有限公司 | Startup-shutdown method and device |
| US10191535B2 (en) | 2013-10-14 | 2019-01-29 | Apple Inc. | Reduced energy consumption in a computer system through software and hardware coordinated control of multiple power supplies |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100711914B1 (en) | 2001-09-15 | 2007-04-27 | 엘지전자 주식회사 | An apparatus for power saving of USB hub |
| JP2004029960A (en) * | 2002-06-21 | 2004-01-29 | Fujitsu Ltd | Portable information apparatus, method for controlling portable information apparatus, and program |
| CN100388164C (en) * | 2004-02-23 | 2008-05-14 | 纬创资通股份有限公司 | Electricity saving set in computer system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02201516A (en) * | 1989-01-31 | 1990-08-09 | Toshiba Corp | Power save system |
| JPH03116311A (en) * | 1989-09-29 | 1991-05-17 | Toshiba Corp | Sleep mode control system |
-
1993
- 1993-03-20 CN CN93103148A patent/CN1043930C/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100440084C (en) * | 2004-11-10 | 2008-12-03 | 印加信息技术有限公司 | Apparatus for controlling standby power |
| CN104520783A (en) * | 2012-03-26 | 2015-04-15 | 米尔普罗斯有限公司 | Standby power interception apparatus for computer and computer peripheral device |
| US10191535B2 (en) | 2013-10-14 | 2019-01-29 | Apple Inc. | Reduced energy consumption in a computer system through software and hardware coordinated control of multiple power supplies |
| CN105049936A (en) * | 2015-08-13 | 2015-11-11 | 海信集团有限公司 | Startup-shutdown method and device |
| CN105049936B (en) * | 2015-08-13 | 2018-09-18 | 海信集团有限公司 | A kind of method and device of switching on and shutting down |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1043930C (en) | 1999-06-30 |
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