200815972 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種直流電源供應系統，特別是指一 種用於電腦系統的直流電壓測試的直流電源供應系統及复 時序控制裝置。 ^ 【先前技術】 在電腦系統設計時，常需對系統的各種電氣或機械特 性作可靠度測試，例如直流電塵測試、靜電電流干擾測試 及機械耐久性測試等等。 w 關於直流電《測試方面，首先說明的是，請參照圖卜 在電腦系統係以一内部電源供應器u來供應電腦系统工作 所需，例如電源供應器u以—電源輸出琿U1插接至主機 板12的電源埠121，以供給主機板12工作所需的直流電壓 (如3.3V、5V、12V)。主機板12已安裝微處理器、記憶體 專等電腦系統的必備構件。 直流電壓測試係針對主機板12之直流輸入電麼作上下 之凋變’以找出設計之缺陷及臨界值。受限於電源供應 裔11本身可調變範圍限制及調變靈敏度不佳的因素，先前 直飢電壓測試的做法係先隔離電源供應器η至主機板間 的-欲測試直_，令不再由電源供應器η供給而改由 =卜接的可調式直流電源供應器13來供給。如此，測試人 員可利用可调式直流電源供應器13來其調整輸人主機板 之直W包壓的電壓值，來供測試人員觀察電腦系統的運作 情況。 200815972 先鈾在電源供應裔啟動後’可調式直流電源供靡、哭13 於任何時間外加直流電源作電壓調變皆可讓電腦系統正常 工作。 热而，令日電腦糸統要求於開BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a DC power supply system, and more particularly to a DC power supply system and a complex timing control device for DC voltage testing of a computer system. ^ [Prior Art] When designing a computer system, it is often necessary to perform reliability tests on various electrical or mechanical characteristics of the system, such as DC dust test, electrostatic current interference test, and mechanical durability test. w About DC power "In terms of testing, first of all, please refer to Figure Bu. In the computer system, an internal power supply u is used to supply the computer system. For example, the power supply u is connected to the host by the power output 珲U1. The power supply port 121 of the board 12 is supplied with a DC voltage (e.g., 3.3V, 5V, 12V) required for the operation of the motherboard 12. The motherboard 12 has the necessary components for a microprocessor, memory, and other computer system. The DC voltage test is performed for the DC input of the motherboard 12 to find the design defects and critical values. Limited by the power supply supply 11 itself adjustable range limit and modulation sensitivity is not good, the previous direct hunger voltage test is to isolate the power supply η to the motherboard - to test straight _, so no longer It is supplied by the power supply η and is supplied by the adjustable DC power supply 13 of the connection. In this way, the tester can use the adjustable DC power supply 13 to adjust the voltage value of the straight W voltage of the input motherboard for the tester to observe the operation of the computer system. 200815972 After the uranium is started, the adjustable DC power supply, crying 13 at any time plus DC power for voltage modulation can make the computer system work normally. Hot, so that the Japanese computer system is required to open
符合其開機時序之規範，電源供應器n始能正常開啟並供 給直流電壓予主機板12。然而，可調式直流電源供應器U 輸出的直流電壓的供給時機係以手動操作，難以讓可調弋 直流電源供應器13供給的直流電壓隨著電源供應器^的^ 序來同步供給，讓電'源供應器u無法正常開啟^無法^ 直流電壓測試。 此刻，可利祕改電源供應器u的開機時序設定來克 服’但此種做法須於每台電腦系統作直流電壓測試時 ::對=供=U重新設定一次’不免對測試人員造成不、 二：二重新添購可配合電源供應器u的開機時序的可 调式直^源供應器，將造成測試成本的大幅 【發明内容】 9 11 因此’本案發明人思及以一時序控制裝置 供應器的時序以同步啟動可調式直流電诉供廡电源 式直m供應器與電源供應器皆可” 調變。 吊仏也亚可作電壓 本發明之一目的，即在提供一 動之直流電源供應系統。腦系統正常啟 本發明之另—目的，即在提供一 源供應器與可調式言法币從包知糸統中電 直"…原供應器皆正常啟動之時序押制 6 200815972 裝置。 故，本發明供電腦系統測試直流電壓用的直流電源供 應系統除以一可調式直流電源供應器來適時供給一可調式 直流電壓外，更以一時序控制裝置來擷取電腦系統内的供 、電時序以同步控制可調式直流電源供應器輸出可調式直流 電壓，讓電腦系統的電源供應器可被正常啟動並可以可調 式直流電源供應器進行直流電壓測試。 所以，本發明直流電源供應系統用以供給一可調式直 φ 流電壓予一電腦系統，該電腦系統具有一主機板與一依其 時序輸出直流電壓予該主機板的電源供應器，該直流電源 供應系統係包含一接收一外界電源並受控制來適時輸出該 可調式直流電壓至該主機板之可調式直流電源供應器及一 電性連接該可調式直流電源供應器與該電腦系統的電源供 應器之時序控制裝置；該時序控制器係擷取該電腦系統的 電源供應器之時序並依該時序來適時控制該可調式直流電 源供應器輸出該可調式直流電壓。 Φ 又，為使可調式直流電源供應器可配合電腦系統的供 電時序來自動輸出可調式直流電壓至電腦系統内，本發明 時序控制裝置係擷取電腦系統的時序並對應控制可調式直 流電源供應的可調式直流電墨的輸出。 本發明時序控制裝置用以控制一可調式直流電源供應 器輸出一可調式直流電壓至一電腦系統中一主機板，該電 腦系統的一電源供應器輸出直流電壓直流電源供應系統， 用以供給依其時序輸出一直流電壓予該主機板，該時序控 7 200815972 制裂置係包含兩分別電性 流電源供應器之傳輸線路及一二 該等傳輸線路揭取該電源供應器的時序並 之時序來料㈣該可調式直流電源❹ 直流電壓。 、應裔輸出該可調式 【實施方式】In accordance with the specifications of the boot timing, the power supply n can normally be turned on and supplied with a DC voltage to the motherboard 12. However, the supply timing of the DC voltage outputted by the adjustable DC power supply U is manually operated, and it is difficult to make the DC voltage supplied from the adjustable DC power supply 13 synchronously supplied with the power supply, and the electricity is supplied. 'Source supply u can not be turned on properly ^ can not ^ DC voltage test. At this moment, it is possible to overcome the power-on timing setting of the power supply u to overcome 'but this method must be used for DC voltage test in each computer system:: ============================================================= Two: two re-purchase can be adjusted with the power supply u's boot timing adjustable direct source device, will cause a large cost of testing [invention] 9 11 Therefore, the inventor of this case thought of a timing control device supplier The timing can be adjusted by synchronously starting the adjustable DC power supply and the power supply type direct supply and power supply. The suspension can also be used as a voltage for one of the purposes of the present invention, that is, providing a dynamic DC power supply system. The other part of the invention is to provide a source supply and an adjustable grammar. The invention provides a DC power supply system for testing a DC voltage of a computer system, and an adjustable DC power supply to supply an adjustable DC voltage at a timely time, and is controlled by a sequence. The device captures the supply and power timings in the computer system to synchronously control the adjustable DC power supply output adjustable DC voltage, so that the power supply of the computer system can be normally started and the DC voltage test can be performed by the adjustable DC power supply. Therefore, the DC power supply system of the present invention is configured to supply an adjustable straight φ current voltage to a computer system having a motherboard and a power supply for outputting a DC voltage to the motherboard according to the timing thereof, the DC The power supply system includes an adjustable DC power supply that receives an external power supply and is controlled to timely output the adjustable DC voltage to the motherboard, and a power supply electrically connected to the adjustable DC power supply and the computer system The timing control device of the supplier; the timing controller captures the timing of the power supply of the computer system and controls the adjustable DC power supply to output the adjustable DC voltage according to the timing. Φ The adjustable DC power supply can be automatically adjusted with the power supply timing of the computer system. The DC voltage is applied to the computer system, and the timing control device of the present invention captures the timing of the computer system and correspondingly controls the output of the adjustable DC ink supplied by the adjustable DC power supply. The timing control device of the present invention controls an adjustable DC power supply. The device outputs an adjustable DC voltage to a motherboard in a computer system, and a power supply of the computer system outputs a DC voltage DC power supply system for supplying a DC voltage according to the timing output to the motherboard, the timing control 7 200815972 The cracking system consists of two transmission lines of the electrical current power supply and one or two of the transmission lines to extract the timing of the power supply and the timing (4) the adjustable DC power supply 直流 DC voltage. Output this adjustable [embodiment]
以下！:本：明之前述及其他技術内容、特點與功效，在 =:考圖式之—個較佳實施例的詳細說明中，將可 供庫… 流電源供應器可同步於電腦系統的電源 :、：：Γ:來供給可調式直流電壓至電腦系統的主機板 广2月直流電源供應系統以—時序控制裝置來揭取電源 亩、I:的％序亚對應控制可調式直流電壓供應器的可調式 士 / ι 給至主機板的時機’讓可調式直流錢的供給 才機可付合電源供應器的開機時序之規範，進而讓電源供 應器可正常開啟。 ’、’、 苓閱圖2，本發明直流電源供應系統3較佳實施例包含 可凋式直流電源供應器31及一時序控制裝置32。本實施 例的直級電源供應系統3用以供給一可調式直流電壓予電 月旬系統’以供電腦系統作i流電壓測試用。 包月自系統具有一電源供應器21與一主機板22，電源供 岛益21係以一電源輸出埠2ιι導接至主機板22的電源埠 221 v 以供給直流電壓予主機板22。此主機板22已安裝電 月&，丁'統必備構件，如微處理器（圖未示）、記憶體（圖未示）等 8 200815972 * 等。 電腦系統中電源供應器21的電源規範標準為 ATX(Advanced Technology expanding)，其版本可為八丁乂2.0 、ATX2.1、ATX2.2等等。本實施例以應用ATX2.2的電源 . 供應器21為例來說明，故電源輸出埠211與電源埠221的 接腳數為24-pin。電源供應器21係接收110Vac/220Vac的 市電，而電源輸出埠211所輸出的直流電壓有+3.3V、+5V 、+12V及備用電壓+5VSB，當電腦系統欲開機時，主機板 φ 22會經電源輸出埠211的一接腳以一電源啟動訊號PS_ON# 來告知電源供應器21啟動。詳細來說，電源開關控制訊號 PS—ON#於未開機時位於高位準；當欲開機時(如電腦系統的 電源鍵被按壓之時），主機板22將電源開關控制訊號 PS_ON#的位準由高位準變低位準；一旦電源供應器21收到 為低位準的電源開關控制訊號PS_ON#，電源供應器21依 時序啟動内部電路，令其將市電轉換成直流電壓+3.3V、 +5V、+12V以經電源輸出埠211輸出至主機板22 ;然後，. _ 電源供應器21更會偵測轉換後的直流電壓+3.3V、+5V、 + 12V的電壓值是否已達一預設比例（如95%)，若偵測到直 流電壓已達到預設比例時，電源供應器21經電源輸出埠 211的另一接腳輸出一電源良好訊號PWR_OK予主機板22 ，而主機板22於收到電源良好訊號PWR_OK後，則開始利 用直流電壓+3.3V、+5V、+12V來執行開機程序。電源良好 訊號PWR_OK平時為低位準，當直流電壓+3.3V、+5V、 + 12V的電壓值已達預設比例時，電源供應器21將電源良 9 200815972 好訊號簡_οκ位準變更成高位準，以告知主機板μ 一輸 出直流電以穩定之訊息’讓主機板22執行開機程序。^ 後，若直流電塵+3.3V、+5V、+12V的電壓值未低於預設比 例時’電源供應器21將維持電源良好訊號pwr_〇k於高位 準〇 可調式直流電源供應器31用以接收—外界電源以適時 二二：5周式直流電壓’測試人員可利用可調式直流電源 =上的控制介面(圖未示)來選擇可調式直幢的 、=值，如3.3V或5Vstl2v，並測試人員可以控制介面 ，調整可調式直流電壓的電星值。當•欲測試的直流 =昼時，亦先隔離電源供應器21與電源輪出埠2ιι間 =直流電㈣線路，而後將可調式直流電源供應器η的 :出W式直流電的線路導接至電源輸出埠2ιι傳輸此直 6丨L電魔的接腳上，以可摘日岑蔣可▲田斗、士+ .· 了適％將可调式直流電壓經電源輸出 、电源埠221饋入主機板22 〇 在此，由於可調式直流電源供應器31、主機板22與電 =應器21的運作原理廣為熟f該項技藝者所熟知且非本 木的改良重點，故不在此贅述。 時序控制裝置32係以一傳輸線路321導接至電源供應 、擷取％源供應器U的時序，且時序控制裝置Μ以 另—傳輸線路322導接至可調式直流電源供應器31以依電 ^供應器21的時序控制可調式直流電源供應器31的可調 式直流電壓的輸出與否。 誠如前述，隨著電源供應器21的開機時序變化，其電 10 200815972 的輸出亦隨之變化，如直流電壓或電源良好訊 同^料M =此變化’可調式直流電源供應器μ亦應 的… 刪至主機板22。因此，本實施例 應:工制裝置32擷取電源供應器21輸出來瞭解電源供 ^321 序變化。在此’時序㈣裝置32係以傳輸線the following! : Ben: The foregoing and other technical contents, features and effects of Ming, in the detailed description of the preferred embodiment of the test chart, will be available for the library... The power supply can be synchronized with the power of the computer system: ::Γ: To supply adjustable DC voltage to the motherboard of the computer system. The February DC power supply system uses the timing control device to extract the power supply mu, and the I: % sequence sub-controls the adjustable DC voltage supply. The timing of the mode / ι to the motherboard 'allows the adjustable DC money supply to meet the power supply's boot timing specifications, so that the power supply can be turned on normally. Referring to Figure 2, a preferred embodiment of the DC power supply system 3 of the present invention includes a tangible DC power supply 31 and a timing control device 32. The direct power supply system 3 of this embodiment is used to supply an adjustable DC voltage to the power system for the computer system for i-stream voltage testing. The monthly self-system has a power supply 21 and a motherboard 22, and the power supply island 21 is connected to the power supply 221v of the motherboard 22 by a power output 埠2ιι to supply a DC voltage to the motherboard 22. The motherboard 22 has been installed with a power module, such as a microprocessor (not shown), a memory (not shown), etc. 8 200815972 * and so on. The power supply specification standard of the power supply 21 in the computer system is ATX (Advanced Technology expanding), and its version may be Octopus 2.0, ATX2.1, ATX2.2, and the like. In the present embodiment, the power supply of the ATX 2.2 is used as an example. Therefore, the number of pins of the power supply output 211 and the power supply 221 is 24-pin. The power supply 21 receives 110Vac/220Vac of mains, and the DC output of the power output 埠211 is +3.3V, +5V, +12V and standby voltage +5VSB. When the computer system wants to boot, the motherboard φ 22 will The power supply 21 is informed to start by a power supply start signal PS_ON# via a pin of the power output 211. In detail, the power switch control signal PS_ON# is at a high level when it is not turned on; when it is turned on (such as when the power button of the computer system is pressed), the motherboard 22 sets the level of the power switch control signal PS_ON#. When the power supply 21 receives the power switch control signal PS_ON# which is a low level, the power supply 21 starts the internal circuit according to the timing, so that it converts the commercial power into a DC voltage of +3.3V, +5V, +12V is output to the motherboard 22 via the power output 211; then, the _ power supply 21 detects whether the converted DC voltage +3.3V, +5V, +12V has reached a preset ratio. (For example, 95%), if it is detected that the DC voltage has reached the preset ratio, the power supply 21 outputs a power good signal PWR_OK to the motherboard 22 via the other pin of the power output 211, and the motherboard 22 receives After the power good signal PWR_OK, the DC voltage +3.3V, +5V, +12V is used to start the boot process. The power good signal PWR_OK is usually low level. When the voltage values of the DC voltages +3.3V, +5V, + 12V have reached a preset ratio, the power supply 21 changes the power supply level to a high level. Precisely, to inform the motherboard μ an output DC to stabilize the message 'Let the motherboard 22 perform the boot process. ^ After the DC power +3.3V, +5V, +12V voltage value is not lower than the preset ratio, the power supply 21 will maintain the power good signal pwr_〇k at the high level adjustable DC power supply 31 For receiving - external power supply in a timely 22: 5 week DC voltage 'testers can use the adjustable DC power = upper control interface (not shown) to select the adjustable straight, = value, such as 3.3V or 5Vstl2v, and the tester can control the interface to adjust the electric star value of the adjustable DC voltage. When the DC to be tested is = ,, the power supply 21 and the power supply wheel are separated from the power supply wheel 2 = the current (DC) line, and then the adjustable DC power supply η: the W-type direct current line is connected to the power supply. Output 埠2ιι transmission on the pin of this straight 6丨L electric demon, to pick up the Japanese 岑 可 可 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 22 〇 , , 由于 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调 可调The timing control device 32 is connected to the power supply by a transmission line 321 to capture the timing of the % source supply U, and the timing control device is connected to the adjustable DC power supply 31 by the other transmission line 322 to be powered. The timing of the supplier 21 controls the output of the adjustable DC voltage of the adjustable DC power supply 31. As mentioned above, as the power-on sequence of the power supply 21 changes, the output of the power 10 200815972 also changes, such as DC voltage or power good news, M = this change 'adjustable DC power supply μ should also Deleted to the motherboard 22. Therefore, in this embodiment, the manufacturing device 32 draws the output of the power supply 21 to understand the power supply. Here, the timing (4) device 32 is a transmission line.
涂接至電源輸出埠211中傳輸電源良好訊 PWR—ΟΚ的接腳’讓電源良好訊號PWR他除傳送至^ 板22外更經傳輪線路321 —併傳送至時序控制裝置32。如 此’時序控制裝置32可於收到電源良好訊號PWRH 控制y调式直流電源供應器31同步輸出可調式直流電壓。 广圖2與圖3 ’本實施例設定可調式直流電源供應器 β酼外界電源ll0Vac/220Vac㈣入來輸出可調式直流電 昼。時序控制裝置32係串接於外界電源u〇Vac/_扣盥 可調式直流電源供應器31間’而傳輸線路322係適時傳輸 外界電源11GVae/22GVae至可調式直流電源供應器Μ，故 時序控制裝置32可視為一隨電源供應器21的時序而啟閉 的電源開關。 洋細來說，本實施例的時序控制裝置32含有一輸入單 元323及-控制電路324。輸入單元323係自傳輸線:切 接收電源良好訊號PWR_0K並將電源良好訊號pwR_〇K經 诸如濾除雜訊與調壓之類的適當處理後傳送至控制電路 。控制電路324接收外界電源！ 1〇Vac/22〇Vac並適時經傳輸 線路322輸出外界電源】！〇Vac/22〇Vac丨可調式直流電源供 應器31。由於電源供應器21輸出直流電壓穩定時，電源良 11 200815972 好訊號PWR-ΟΚ位準將被維持於高位準，故控制電 可為-觸發保持電路，㈣電路324於平時(指良 號灣_〇K為低位準時）為未導通而開路，讓外界= mvac/22GVae不會被輸人可調式直流電源供應器μ， 式直流電源供應器31自不會輸出可調式直流電壓；“源 良好訊號隱—⑽為高位準時，控制電路324被觸^導、 通讓外界電源11W經控制電路324輸出可調式直 流電源供應器31，今可坰彳古、夫； 、且 可調式直流電壓至主;電源供應器31卫作以輪出 如此’時序控制裝置32可利用電源供應器21的電源 良好«PWR_0K來控制可調式直流電源供應器3ι同步輸 出可”周式直流電壓’讓主機板22可繼續執行開機程序，進 而讓電源供應器21與主機板22皆可被正常啟動。另外， 時序控制裝置32可以電源供應器21輸出的欲測試的直流 電壓取代電源良好訊號PWR_〇K來控制可調式直流電源供 應益Μ的可調式直流電壓輸出，指控制電路—可於電源 供應器'被隔離的直流電壓的電壓值達到—預設比率時被 觸I而^通。又’本實施例的時序控制裝置η可被設計成 -外接式獨立裝置，指時序控制裝置32係、可分離地電性連 接電源供應H 21與可調式直流電源供應器31，因此，本實 的τ序4工制裝置32可搭配既有可調式直流電源供應器 31來進行電腦系統的直流電壓測試’以在不過度增加成本 下’讓可調式直流電源供應器31的可調式直流電壓可隨電 421的犄序同步被輸出至主機板22，讓電源供應器 12 200815972 常被啟動且可調式直 電壓的電壓調變，如 21與可調式直流電源供應器31皆可正 流電源供應器31可用來作可調式直流 以找出設計之缺陷及臨界 可調式直流電壓的昇壓或降壓 值。The power-good signal PWR-ΟΚ's pin is applied to the power output 埠211, and the power good signal PWR is transmitted to the gate circuit 321 and transmitted to the timing control device 32. Thus, the timing control device 32 can control the y-mode DC power supply 31 to synchronously output the adjustable DC voltage upon receiving the power good signal PWRH. 2 and FIG. 3 ' This embodiment sets an adjustable DC power supply. The external power supply ll0Vac/220Vac (4) is used to output an adjustable DC power. The timing control device 32 is connected in series with the external power supply u〇Vac/_ buckle adjustable DC power supply 31' and the transmission line 322 transmits the external power supply 11GVae/22GVae to the adjustable DC power supply 适, so the timing control The device 32 can be regarded as a power switch that is turned on and off with the timing of the power supply 21. For the sake of detail, the timing control device 32 of the present embodiment includes an input unit 323 and a control circuit 324. The input unit 323 is a transmission line: the receiving power good signal PWR_0K is received and the power good signal pwR_〇K is transmitted to the control circuit after appropriate processing such as filtering noise and voltage regulation. Control circuit 324 receives external power! 1〇Vac/22〇Vac and output external power via transmission line 322 in time]! 〇Vac/22〇Vac丨 adjustable DC power supply 31. Since the output voltage of the power supply 21 is stable, the power supply is good, and the control signal can be maintained at a high level, so the control power can be a - trigger hold circuit, and (4) the circuit 324 is in normal time (referring to the good number bay _ 〇 K is low-level on time) Opened for non-conduction, so that the outside = mvac/22GVae will not be input to the adjustable DC power supply μ, the DC power supply 31 will not output the adjustable DC voltage; "Source good signal hidden - (10) is high level on time, the control circuit 324 is touched, and the external power source 11W is outputted through the control circuit 324 to output the adjustable DC power supply 31, which can be used today; and the adjustable DC voltage to the main; The supplier 31 is operative to take out such a 'sequence control device 32 can use the power supply of the power supply 21 to be good «PWR_0K to control the adjustable DC power supply 3 ι synchronous output can be "circumferential DC voltage" to allow the motherboard 22 to continue The booting process, in turn, allows both the power supply 21 and the motherboard 22 to be normally activated. In addition, the timing control device 32 can replace the power good signal PWR_〇K outputted by the power supply 21 to control the adjustable DC power supply of the adjustable DC power supply, and the control circuit can be supplied to the power supply. The voltage value of the isolated DC voltage is reached when the preset ratio is reached. Further, the timing control device η of the present embodiment can be designed as an externally-connected independent device, and the timing control device 32 is detachably electrically connected to the power supply H 21 and the adjustable DC power supply 31. The τ-sequence device 32 can be used with the adjustable DC power supply 31 to perform the DC voltage test of the computer system 'to enable the adjustable DC voltage of the adjustable DC power supply 31 without excessively increasing the cost. The synchronization with the power supply 421 is output to the motherboard 22, so that the power supply 12 200815972 is always activated and the adjustable straight voltage voltage is modulated, such as 21 and the adjustable DC power supply 31 can be positive current power supply 31 can be used as an adjustable DC to find design flaws and boost or buck values for critically adjustable DC voltages.
據前所述，本發明直流電源供應系统3以時序控制裝 置32擷取電源供應器21的時序並依電源供應器2ι的時序 來控制可調式直流電壓的輸出與否，以讓可調式直流電壓 可隨電源供應器21的直流電壓同步輪出，以符合電源供應 器的開機時序，以在最小成本下，讓電源供應器η 被正常啟動且可調式電源供應器21亦可作可調式直流電壓 的電壓調變，以進行直流電壓測試。 ▲惟以上所述|，僅為本發明之較佳實施例而已，當不 ^以此限定本發明實狀範圍，即大凡依本發明申請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一種先前電腦系統的直流電壓測試的一示意圖 Θ 2疋本發明直流電壓供應系統較佳實施例配合一電 腦系統以執行直流電壓測試的一示意圖；及 圖3是本貫施例的時序控制裝置的方塊示意圖。 13 200815972 【主要元件符號說明】 21電源供應器 31可調式直流電源供應器 211電源輸出埠 32時序控制裝置 22主機板 321、322傳輸線路 221電源埠 323輸入單元 3直流電源供應系統 324控制電路 14According to the foregoing, the DC power supply system 3 of the present invention picks up the timing of the power supply 21 by the timing control device 32 and controls the output of the adjustable DC voltage according to the timing of the power supply 2i to allow the adjustable DC voltage. It can be rotated synchronously with the DC voltage of the power supply 21 to meet the power-on timing of the power supply, so that the power supply η is normally started at the minimum cost and the adjustable power supply 21 can also be used as the adjustable DC voltage. The voltage is modulated for DC voltage testing. The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes made according to the scope of the invention and the description of the invention. Modifications are still within the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a DC voltage test of a prior computer system. FIG. 1 is a schematic diagram of a preferred embodiment of a DC voltage supply system of the present invention coupled with a computer system to perform a DC voltage test; and FIG. A block diagram of a timing control device of the present embodiment. 13 200815972 [Main component symbol description] 21 power supply 31 adjustable DC power supply 211 power output 埠 32 timing control device 22 main board 321, 322 transmission line 221 power supply 323 input unit 3 DC power supply system 324 control circuit 14