CN101667445A - Working voltage supply device and method thereof - Google Patents
Working voltage supply device and method thereof Download PDFInfo
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- CN101667445A CN101667445A CN200810215700A CN200810215700A CN101667445A CN 101667445 A CN101667445 A CN 101667445A CN 200810215700 A CN200810215700 A CN 200810215700A CN 200810215700 A CN200810215700 A CN 200810215700A CN 101667445 A CN101667445 A CN 101667445A
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Abstract
本发明公开了一种工作电压供应装置及其方法，用以供应工作电压至存储器。此工作电压供应装置包括电源控制器、数字/模拟转换器及南桥芯片。电源控制器用以供应工作电压至存储器。数字/模拟转换器用以控制电源控制器改变工作电压的值。南桥芯片用以与基本输入/输出系统搭配操作，以便在存储器激活时读取存储器的参数，以从参数中取得存储器的标定工作电压值，并判断电源控制器目前供应的工作电压的值是否与标定工作电压值相等，当判断为否时，便驱使数字/模拟转换器去控制电源控制器改变工作电压的值，以使工作电压的值与标定工作电压值相等。
The present invention discloses a working voltage supply device and a method thereof, which are used to supply working voltage to a memory. The working voltage supply device includes a power controller, a digital/analog converter and a south bridge chip. The power controller is used to supply working voltage to the memory. The digital/analog converter is used to control the power controller to change the value of the working voltage. The south bridge chip is used to operate in conjunction with a basic input/output system so as to read the parameters of the memory when the memory is activated, so as to obtain the calibrated working voltage value of the memory from the parameters, and to determine whether the value of the working voltage currently supplied by the power controller is equal to the calibrated working voltage value. When it is determined to be no, the digital/analog converter is driven to control the power controller to change the value of the working voltage so that the value of the working voltage is equal to the calibrated working voltage value.
Description
Technical field
The invention relates to Working voltage supply device and method thereof, and particularly relevant for the Working voltage supply device and the method thereof of storer.
Background technology
Storer is the vitals of computer equipment, and along with the development of storer, the storage density of storer and data transfer bandwidth all constantly upwards promote, and makes the also related rapid rising of power consumption of storer.Yet,, under the increasing situation of the power consumption of storer, also bring serious day by day heat dissipation problem for main frame because the mainframe box volume inside of computer equipment is limited.In order to reduce the power consumption of storer, the production firm of many storeies is devoted to see through the operating voltage that reduces storer and reaches such purpose.For instance, the operating voltage of present DDR3 (for the abbreviation of third-generation double data rate memory) product is reduced to 1.5V by the 1.8V of DDR2 (for the abbreviation of second-generation double data rate memory), and following production firm also will continue to release the low DDR3 product below 1.35V of operating voltage.
Variation for the operating voltage that adapts to storer, the production firm of computer equipment is considering the storer that may must be applied to multiple operating voltage type, so that can promote the adaptability and the competitive power of computer product, therefore a kind of solution that can support the storer of two kinds of different operating voltage modes has also been proposed, as shown in Figure 1.
Fig. 1 promptly illustrates traditional Working voltage supply device, and in this figure, VDD, V_DDR3+ and V_DDR3-represent supply voltage, and the value of V_DDR3-is less than the value of V_DDR3+, and GND then represents ground voltage.In the circuit framework shown in this figure, power-supply controller of electric (power controller, as indicate shown in 110) in order to supply operating voltage VOUT to storer (not illustrating), and the user can be by plugging jumper switch (jumper, as indicate shown in 102) allow signal EN present low level (low), or allow signal EN present high level (high) by not plugging jumper switch 102, so that the conducting state of oxide-semiconductor control transistors 104.Whether the conducting that sees through oxide-semiconductor control transistors 104 just can further determine whether to make resistance 106 and 108 in parallel and cause the change of dividing potential drop, thereby cause the value of feedback signal FB to change.Power-supply controller of electric 110 then can change the size of the operating voltage VOUT of output according to the value of feedback signal FB.In view of the above, see through the setting of jumper switch 102, can make the value of operating voltage VOUT produce two kinds of different variations.
Yet, the shortcoming of this solution is to realize the automatic detection and adjusting automatically of the operating voltage of storer, for the production firm or personal user of computer equipment, once change the storer of different operating voltage, just need to check the setting of jumper switch 102 with manual type, just check whether plug jumper switch 102, so just very easily cause the mistake in the setting, and then the stable operation of the whole computer equipment of related influence.
Summary of the invention
The invention provides a kind of Working voltage supply device, it can implement the automatic detection and adjusting automatically of the operating voltage of storer.
The present invention provides a kind of working voltage supplying method in addition, and it can realize the automatic detection and adjusting automatically of the operating voltage of storer.
The present invention proposes a kind of Working voltage supply device, is suitable for supplying operating voltage to storer.This Working voltage supply device includes power-supply controller of electric, digital/analog converter and South Bridge chip.Power-supply controller of electric is in order to supply operating voltage to storer.Digital element/analog converter changes the value of operating voltage in order to the control power-supply controller of electric.South Bridge chip couples storer and digital/analog converter, in order to operate with the basic input/output collocation, so that when storer activates, read the parameter of storer, from parameter, to obtain the staking-out work magnitude of voltage of storer, and whether the value of judging the operating voltage that power-supply controller of electric is supplied at present equates with the staking-out work magnitude of voltage, when being judged as not, just order about digital/analog converter and go to control the value that power-supply controller of electric changes operating voltage, so that the value of operating voltage equates with the staking-out work magnitude of voltage.
The present invention proposes a kind of working voltage supplying method in addition, is used to supply operating voltage to storer.The method comprises the following steps: that at first the supply operating voltage is to storer.Then, when activating, reads by storer the parameter of storer.Then, from parameter, obtain the staking-out work magnitude of voltage of storer.Then, judge whether the value of the operating voltage of supply equates with the staking-out work magnitude of voltage at present, when being judged as not, change the size of operating voltage, so that the value of operating voltage equates with the staking-out work magnitude of voltage.
In the Working voltage supply device of one embodiment of the invention, the active mode of above-mentioned storer is to utilize South Bridge chip to order about digital/analog converter to remove to control power-supply controller of electric, so that with predetermined low level supply operating voltage, and increase progressively the value of operating voltage, activate up to storer.
In the Working voltage supply device of one embodiment of the invention, above-mentioned power-supply controller of electric has the feedback signal input end, and digital/analog converter is to control the size that power-supply controller of electric changes operating voltage by the voltage of adjusting above-mentioned feedback signal input end.
In the working voltage supplying method of one embodiment of the invention, above-mentioned supply operating voltage to the step of storer comprises following substep: at first, and with predetermined low level supply operating voltage.Then, increase progressively the value of operating voltage, activate up to storer.
The present invention is because of adopting power-supply controller of electric, digital/analog converter and South Bridge chip are formed Working voltage supply device, in order to supplying operating voltage to storer with power-supply controller of electric, and utilize digital/analog converter to control the value that power-supply controller of electric changes operating voltage, and South Bridge chip can be operated with the basic input/output collocation, so that when storer activates, read the parameter of storer, from parameter, to obtain the staking-out work magnitude of voltage of storer, and whether the value of judging the operating voltage that power-supply controller of electric is supplied at present equates with the staking-out work magnitude of voltage, when being judged as not, South Bridge chip just orders about digital/analog converter and goes to control the value that power-supply controller of electric changes operating voltage, so that the value of operating voltage equates with the staking-out work magnitude of voltage.In addition, the active mode of above-mentioned storer can be to utilize South Bridge chip to order about digital/analog converter to remove to control power-supply controller of electric, so that supply operating voltage with predetermined low level, and increases progressively the value of operating voltage, activates up to storer.In view of the above, Working voltage supply device of the present invention can be implemented the automatic detection and adjusting automatically of the operating voltage of storer, make the production firm of computer equipment or personal user when changing the storer of different operating voltage, no longer need check the setting of jumper switch, thereby be difficult for causing the mistake in the setting with manual type.
For above-mentioned feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 illustrates traditional Working voltage supply device.
Fig. 2 illustrates the Working voltage supply device according to one embodiment of the invention.
Fig. 3 is the working voltage supplying method according to one embodiment of the invention.
Fig. 4 illustrates the Working voltage supply device according to another embodiment of the present invention.
Embodiment
Fig. 2 illustrates the Working voltage supply device according to one embodiment of the invention.In this figure, Working voltage supply device includes South Bridge chip 202, power-supply controller of electric 208 and digital/analog converter 210.In addition, storer 204, central processing unit (central processing unit have also been illustrated among this figure, be called for short CPU, indicate with 206) and basic input/output (basic input/output system, be called for short BIOS, indicate with 220), in order to represent the relation that couples of this three and Working voltage supply device of the present invention, wherein, central processing unit 206 can carry out the access of data to storer 204.
The mode of operation and the implementation of each member in following this Working voltage supply device of summary earlier.Above-mentioned power-supply controller of electric 208 is to be coupled to storer 204, and to storer 204, digital/analog converter 210 then changes the size of operating voltage VOUT in order to control power-supply controller of electric 208 in order to supply operating voltage VOUT.In this example, power-supply controller of electric 208 can be to utilize width modulation (pulse width modulation, abbreviation PWM) power-supply controller of electric is realized, or utilize voltage Voltage stabilizing module (voltage regulator module, be called for short VRM) realize, also or with other circuit realize with similar functions.And digital element/analog converter 210 control power-supply controller of electric 208 change the mode of operating voltage VOUT, for example are to control the size that power-supply controller of electric 208 changes operating voltage VOUT by the voltage of adjusting the feedback signal input end (shown in FBIN) that power-supply controller of electric 208 had.
As for South Bridge chip 202, it is coupled to storer 204 and digital/analog converter 210.In this example, South Bridge chip 202 is to see through a bus to couple storer 204 and digital/analog converter 210, so that carry out data transmission with storer 204 and digital/analog converter 210, and this bus for example is System Management Bus (systemmanagement bus, be called for short SMbus, indicate with I2C_SDA and I2C_SCL in the drawings).Certainly, South Bridge chip 202 also can couple storer 204 and digital/analog converter 210 through the data transmission interface of other pattern.
Above-mentioned South Bridge chip 202 is in order to operate with basic input/output 220 collocation, so that when storer 204 activates, read the parameter of storer 204, from parameter, to obtain the staking-out work magnitude of voltage of storer 204, just obtain the standard working voltage value of the specification defined of this storer 204.South Bridge chip 202 is after obtaining above-mentioned staking-out work magnitude of voltage, and whether the value that will go to judge the power-supply controller of electric 208 present operating voltage VOUT that supply equates with the staking-out work magnitude of voltage.When judged result for not the time, South Bridge chip 202 just orders about digital/analog converter 210 and goes to control the size that power-supply controller of electric 208 changes operating voltage VOUT, so that the value of operating voltage VOUT equates with the staking-out work magnitude of voltage; Otherwise, when judged result when being, 202 of South Bridge chips can not order about digital/analog converter 210 and go to control the size that power-supply controller of electric 208 changes operating voltage VOUT.
The active mode of storer 204 can be to utilize South Bridge chip 202 to order about digital/analog converter 210 to remove to control power-supply controller of electric 208, makes operating voltage VOUT present a predetermined value earlier, so that activate storer 204.Certainly, this predetermined value must greater than the minimum activation voltage of the storer that might adopt, and the gap of the minimum activation voltage of different memory can not be too big, otherwise may cause the less storer of minimum activation voltage to damage.Comparatively ideal mode is utilized South Bridge chip 202 to order about digital/analog converter 210 exactly and is removed to control power-supply controller of electric 208, so that supply operating voltage VOUT with predetermined low level, and increases progressively the value of operating voltage VOUT, activates up to storer 204.In other words, the value of operating voltage VOUT is increased progressively in ascending mode,, so just can not be damaged to storer 204 so that seek the minimum activation voltage of storer 204.
Fig. 3 is the working voltage supplying method according to one embodiment of the invention, and it shows a preferable operating process of the Working voltage supply device of Fig. 2.Please according to the explanation needs and with reference to Fig. 2 and Fig. 3.At first, in order to allow storer 204 activate, South Bridge chip 202 can order about digital/analog converter 210 and remove to control power-supply controller of electric 208, so that supply operating voltage VOUT is to storer 204 (shown in step S302) earlier.And in step S302, the active mode of storer 204 is to utilize South Bridge chip 202 to order about digital/analog converter 210 to remove to control power-supply controller of electric 208, so that supply operating voltage VOUT to storer 204 (shown in step S302-1) with predetermined low level.Then, South Bridge chip 202 can go to attempt looking to have no idea to read the parameter of storer 204 with basic input/output 220 collocation operations.If there is way to read parameter, the value of the operating voltage VOUT that expression power-supply controller of electric 408 is supplied has at present reached the minimum activation voltage of storer 204; Otherwise, read parameter if having no idea, expression power-supply controller of electric 408 value of the operating voltage VOUT of supply does not at present reach the minimum activation voltage of storer 204 as yet, so must increase progressively the value of operating voltage VOUT, can activate (shown in step S302-2) up to storer 204.
Certainly, in the process of the value that increases progressively operating voltage VOUT, the value of operating voltage VOUT whenever adjusts upward once, and South Bridge chip 202 will go to attempt looking to have no idea to read the parameter of storer 204 again.In case the value of operating voltage VOUT reaches the minimum activation voltage of storer 204, and make that when storer 204 activated, South Bridge chip 202 just may be read into the parameter (shown in step S304) of storer 204.Then, South Bridge chip 202 just can be from the staking-out work magnitude of voltage (shown in step S306) of obtaining storer 204 parameter, and judge power-supply controller of electric 208 at present the operating voltage VOUT of supply value therewith the staking-out work magnitude of voltage whether equate (shown in step S308).
After execution of step S308, if judged result is for being, the value of the operating voltage VOUT that expression power-supply controller of electric 208 is supplied has at present reached the standard working voltage value of the specification defined of this storer 204, so South Bridge chip 202 just can not order about the size (shown in step S310) that digital/analog converter 210 does not remove to control power-supply controller of electric 208 change operating voltage VOUT; Otherwise, if judged result is for denying, the value of the operating voltage VOUT that expression power-supply controller of electric 208 is supplied does not at present reach the standard working voltage value of the specification defined of this storer 204 as yet, therefore South Bridge chip 202 will order about the size that digital/analog converter 210 removes to control power-supply controller of electric 208 change operating voltage VOUT, so that the size of operating voltage VOUT equates (shown in step S312) with the staking-out work magnitude of voltage.
From the explanation of the various embodiments described above as can be known, the present invention has following several advantages at least: the first can be discerned the storer of different operating voltage type automatically, it two is to adjust the operating voltage that export storer to automatically according to the parameter of different memory, it three is setting full automations of operating voltage, avoids artificially setting mistake.
In addition, in response to existing based on dual-CPU architecture, the present invention also proposes another kind of Working voltage supply device according to the circuit framework of above-mentioned Fig. 2, as shown in Figure 4.Fig. 4 illustrates the Working voltage supply device according to another embodiment of the present invention.In this figure, Working voltage supply device includes South Bridge chip 402, power-supply controller of electric 408 and 412, also has digital/analog converter 410.In addition, also illustrated storer 404 and 414, central processing unit 406 and 416 among this figure, also had basic input/output 420, in order to represent this relation that couples of Working voltage supply device therewith.Because the operation of device shown in Figure 4 and the operation of device shown in Figure 2 are extremely similar, just repeat no more the mode of operation of device shown in Figure 4 at this.Yet it must be noted that, digital/analog converter 410 among Fig. 4 be used for controlling power-supply controller of electric 408 and 412 the two go to change the size of the operating voltage (respectively shown in VOUT1 and VOUT2) of supply, therefore digital/analog converter 410 must be realized with twin-channel digital/analog converter, and a wherein output channel of this two-channel digital/analog converter need be coupled to power-supply controller of electric 408, so that power-supply controller of electric 408 is controlled, another output channel then need be coupled to power-supply controller of electric 412, so that power-supply controller of electric 412 is controlled.
In sum, the present invention is because of adopting power-supply controller of electric, digital/analog converter and South Bridge chip are formed Working voltage supply device, in order to supplying operating voltage to storer with power-supply controller of electric, and utilize digital/analog converter to control the value that power-supply controller of electric changes operating voltage, and South Bridge chip can be operated with the basic input/output collocation, so that when storer activates, read the parameter of storer, from parameter, to obtain the staking-out work magnitude of voltage of storer, and whether the value of judging the operating voltage that power-supply controller of electric is supplied at present equates with the staking-out work magnitude of voltage, when being judged as not, South Bridge chip just orders about digital/analog converter and goes to control the value that power-supply controller of electric changes operating voltage, so that the value of operating voltage equates with the staking-out work magnitude of voltage.In addition, the active mode of above-mentioned storer can be to utilize South Bridge chip to order about digital/analog converter to remove to control power-supply controller of electric, so that supply operating voltage with predetermined low level, and increases progressively the value of operating voltage, activates up to storer.In view of the above, Working voltage supply device of the present invention can be implemented the automatic detection and adjusting automatically of the operating voltage of storer, make the production firm of computer equipment or personal user when changing the storer of different operating voltage, no longer need check the setting of jumper switch, thereby be difficult for causing the mistake in the setting with manual type.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is when with being as the criterion that claim was defined.
Claims (11)
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| CN200810215700A CN101667445A (en) | 2008-09-01 | 2008-09-01 | Working voltage supply device and method thereof |
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| CN200810215700A CN101667445A (en) | 2008-09-01 | 2008-09-01 | Working voltage supply device and method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102467225A (en) * | 2010-11-18 | 2012-05-23 | 英业达股份有限公司 | Memory power supply device and memory power supply method for computer system |
| CN113835506A (en) * | 2021-08-16 | 2021-12-24 | 深圳微步信息股份有限公司 | Terminal equipment and overpressure control method for multi-gear adjustment of terminal equipment |
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2008
- 2008-09-01 CN CN200810215700A patent/CN101667445A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102467225A (en) * | 2010-11-18 | 2012-05-23 | 英业达股份有限公司 | Memory power supply device and memory power supply method for computer system |
| CN113835506A (en) * | 2021-08-16 | 2021-12-24 | 深圳微步信息股份有限公司 | Terminal equipment and overpressure control method for multi-gear adjustment of terminal equipment |
| CN113835506B (en) * | 2021-08-16 | 2023-12-08 | 深圳微步信息股份有限公司 | Terminal equipment and overpressure control method for multi-gear adjustment of terminal equipment |
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