28004twf.doc/n 201003642 九、發明說明： 【發明所屬之技術領域】 本發明是有關於-種硬碟燈號的控制 有關於一種硬碟燈號模組的控制電路。甩岭’且特別是 【先前技術】28004 twf.doc/n 201003642 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to control of a hard disk lamp number. A control circuit relating to a hard disk lamp module.甩岭' and especially [prior art]
圖1緣示為多域板關服H 在—些’例如伺服器系、统刚:，1 ’ 主機板m、122、123與124。而在飼服 ^有多個 也配置有多個電源供應器m、112 =統中， 121、122、123與124運作所需的電源。$這ί主機板 器111是用來供應主機板121和122 二電源供應 供應器m則是用來供應主機板123和^戶^ ’而電源 另外，在飼服器系統⑽中，也配置有多源。 時被點亮，以祕时得知硬碟目_^硬碟被啟動 圖2緣示為習知之硬碟燈號模組的電 2，在習知的硬碟燈號_中，包括開關22 圖 電組240與發光元件25〇。發光元件250可以 ^指不燈，而開關220為電晶體。開關220的閘極叙接 碟加的訊號輸出端，没_接二極體25〇的陰極端= ^難^。電源23〇藉由電阻·輕接至電晶體2 啟動時，硬碟210的訊號輸出端便 a輪出一尚包位訊唬HS，所以開關22〇會導通，使得 230經由電阻，導通發光元件250，所以硬碟210的指 5 28004twf.doc/n 201003642 j. */ 示燈就會發亮。 凊合併參照圖1與圖2，圖1中主機板121與丨22各 可以配置多個硬碟與燈號模組，例如硬碟21〇與燈號模組 200,由於電源供應器ln耦接於主機板121與122，因此 當主機板121工作時，電源供應器ιη便會 有主機板則22都會被提供4=句話 況，也就是非工作狀態的主機板122亦會受 Γ提供，源。而主機板122内部的非工作狀態的硬碟便；： 供-南電位訊號HS至燈號模組200，使得開關22〇開啟， ，發光το件25G便發亮’因此非卫作狀態的硬碟也會發 $。所以·的情财造成使用者對於補I作狀態的混 洧，也讓使用者難以判斷硬碟操作下的狀況。 【發明内容】 因此 蝥月提供一種硬碟燈號的控制電路盘燈號模 ㈣的燈號，明確的呈現硬碟的操;乍狀態於 W ’讓使用者清楚地了解硬碟的操作狀況。 本么月提（、種硬碟燈號的控制電路，其 發光元件產生。硬碟燈號的控制電路包括第一 第寸制二開其H二極體的陰極端用以接收 源導通端錄g，來妓衫反將電 弟發7^件’而產生該硬碟燈號。 雷7?另控制電路的第—開關為電晶體，其源極端耦接 電源’間極端她極端分接第—二極體和第 201003642 wuvw. a” 280〇4twf.doc/n 件。並且，第一發光元件為第一發光二極體。 〜在本發0月之-實施例中，硬碟燈號的控制電路更包括 第極體、第—電阻與第二電阻。第二二極體配置在第 開關和第一極體之間的路徑上，並且第二二極體的陰 極端祕第-二極體的陽極端。而第—電阻咖以將第二 二極體的陽極端_至第—開關。第二電組則用以將第一 開關耦接至第一發光元件。 從另一觀點來看，本發明也提供一種適用於硬碟裝置 的燈號模組，包括第—發^元件、第二發光元件、控制電 路八中，控制電路耗接第二發光元件，並控制第二發光 元件么光與否，並且控制電路具有一開關，用以將第一發 光凡件输至電源，當開關導通時，則電源用以點亮第-發光元件。 一在本發明之一實施例中，燈號模組的控制電路包括第 一二極體、第二二極體、第三二極體與第一電阻。第一二 極體的陰極端输第—控制訊號和第二發統件。另外， 第二二極體的陰極端則耦接第一二極體的陽極端。而第三 極體的陰極‘耗接於第二控制訊號和第二發光元件，其 陽極端則耦接至第二二極體的陰極端。另外’第一電阻貝j 用以將第二二極體的陽極端透過控制電路的輸出 開關。 —另外，燈號模組的第二發光元件為一第二發光二極 ，。其陰極端耦接於第—控制訊號和第一二極體的陰極 令而而第一發光二極體的陽極端則耦接於第二控制訊號和 7 28〇〇4twf.d〇c/i 201003642 该第二二極體的陰極端。而開關為—第— 端耗接該電源’而其閉極端耗接該控制電路=出=源極 件第在本;明之-實施例中，燈號模組更包光元 ，第-電晶體、第二電阻、第三電阻與第四電阻。 二毛光7G件是由第三發光二極體來實現，其 ^一， 體的陽極端輕接第一控制訊號和第-二極i的^二了極 二極體的陰極端則耦接於第二控制訊;和第二： 至二=端件第:電阻用以將第一電晶體的汲極端耗接 弟”讀H晶體其汲極端她第 牛’源極端則接地。而第三電阻用 _，至硬碟裝置，以接收-工作訊號第四 山U二電阻共同耦接至硬碟裝置，而第四電阻的另一 端則可以祕電源。 東的另 由控Γι ίΐ發^之硬碟燈號的控制電路與燈號模組可以藉 對於硬碟工作狀態的混溃，也讓使用= 積確的明確硬碟操作的狀況。 為讓本么a月之上述和其他目的、特徵和優點能更明顯 ，下文特舉較佳實施例，並配合所附圖式，作詳細說 %如下。 【實施方式】 圖3 !會示為多硬碟系統示意圖。請參照圖3，多硬碟 ^統300包括硬碟群組32〇與34〇，其可以分別由例如圖丄 中不同的主機板所控制。每—硬碟群組分別具有不同的顯 280〇4twf.doc/n 201003642 ^燈號，=如321和341，其用來顯示各自硬碟群組的狀 悲。在本實施例中，顯示燈號321和341可以利用 極體等發光元件來實現。 " 一 ί. L. —圖4繪示為依照本發明之一較佳實施例的燈號模組之 電路圖。請參照圖4，本實施例之燈號模組4〇〇，可以適用 於例如圖3所揭示的多硬碟系統3〇〇。在燈號模組4〇〇中， ，至少包括第一發光元件421，此第一發光元件421，可以 =多硬碟系統300中的顯示燈號321或341。而如上所述， =一發光兀件421可以是發光二極體。另外，燈號模組 還:以包括控制電路45〇、第二開關442、第三電阻衫3 和第四電阻434。其中’第一發光元件421的陽極端可以 柄接控制電路450，陰極端則可以透過第二開關442接地。 此外，第二電阻433的一端可以耦接至開關442，另一端 則則可以與第四電阻434的一端轉接至硬碟裝置細，並 且第四電阻的另—端則可以耦接至一電源p2。 在本實施例中，第二開關442可以利用電晶體來 ，。開關442的沒極端可以_至第二發光元件的陰極 k ’源極端可以接地，而閘極端則可以透過第三電阻你 耦接至硬碟460。 另—方面，控制電路45〇則可以至少包括第一二極體 一、弟—電阻43卜第一開關441和第二電阻432。第一 目^體、4U的陰極端可以耗接第—控制訊號⑶，陽極端 則可以透過第一電阻431叙接黾門冏 笛耦接至開關441。在本實施例中， 弟一開關441可以是電晶體’而此電晶體的源極端可以轉 9 201003642 --------.V 28004twfdoc/n 接電源p卜沒極端可以透過第二電阻432 #接至第一發光 元件42丨的陽極端，而第一開關441的閘極端則可以^過 第一電阻431耦接至第一二極體441的陽極端。在本實施 例中’電源P1的電位可以等於電源P2的電位。 在一些實施例中，控制電路450還可以包括第二二極 體41土和第二二極體413。其中，第二二極體可以配 置在第一二極體411和第一電阻431之間了耦接路徑上， r 其陰極端可以輕接第一二極體411的陽極端，而陽極端則 I以透過第一電阻431耦接至開關441的閘極端。此外， 第三二極體413的陰極端則可以接收第二控制訊號CS2， 而陽極端可以與第一二極體441共同減至第二二極體 412的陰極端。 鱼圖5 %示為硬碟狀態之顯示燈號表。請合併參照圖4 與圖5,第一控制訊號CS1和第二控制訊號^以可以由控 碟裝置460的主機板所產生。當控制硬碟裝置460的 I ? ,1、^被啟動時，第一控制訊號CS1和第二控制訊號CS2 中之一會在低電位(L)的狀態。此時，第一二極體 和第三二極體413二者至少其中之一被導通，並且使 ^了—極體412也會被導通。而由於第一開關441的電 3可以是P通道的型態，因此第一開關441也會導通， 仵電源P1可以被傳送到第一發光元件421的陽極端。 ;方面’當控制硬碟裝置460的主機板被啟動時， 442。460則會傳送一具有高電位的控制訊號給開關 。此時，開關442可以依據硬碟裝置46〇所傳送來高電 28004twf.doc/n 201003642 位的控制訊號而導通’使得第— 地;，於第一發光元件442的陽 = 隐極端接地’因此第-發光元件442就 ί 動，m若λ控制硬碟裝置偏的主機板沒有被啟 、第mi#ucsi和第二控制訊號CS2都可以維持 在局電位(H)的狀態。此時，第一二極體41】和第三二極體 413都不會導通，導致第二二極體412呈現斷路的狀態。 ，時’第-開關441之電晶體閘極端是浮接的狀態，而使 传電晶體不導通。本領域具錢常知識者應當知道，此時 無論硬碟裝置46G輸出任何狀態的控制訊號到開關442， 第-發光元件421都不會被點亮。因此，本實施例可以確 保第:發光元件421不會產生誤動作而讓使用者誤判。 請回頭參照圖3，從以上可知，圖4中的第一發光元 件421可用在指示硬碟群組32〇或34〇的指示燈號321或 341 ;、彳而，私示燈號321或341僅能顯示各自整體硬碟群 組320340的狀態’但是卻不能表示單獨硬碟裝置的狀態。 因此:在一些選擇實施例中，每一硬碟裝置上，還可以配 置指示燈號361和362至少其中之—。而依據每一硬碟裝 置上所配置的指示燈號361和362，使用者就可以得知對 應之硬碟目前的狀態。 睛再參照圖4’為了因應以上的需求，在燈號模組4〇〇 中’還可以包括第二發光元件422和第三發光元件423， 可以當作圖3中的指示燈號361和362。類似地，第二發 11 28004twf.doc/n 201003642Figure 1 shows the multi-domain board service H in the case of 'server system, system: 1, ' motherboards m, 122, 123 and 124. In the feeding service, there are a plurality of power supplies that are also configured with a plurality of power supplies m, 112 = 121, 122, 123, and 124. $ This motherboard 111 is used to supply the motherboards 121 and 122. The second power supply m is used to supply the motherboard 123 and the main unit. The power supply is additionally provided in the feeder system (10). Multiple sources. When it is lighted, it is known that the hard disk is _^ hard disk is activated. Figure 2 shows the power of the hard disk light module of the conventional hard disk. In the conventional hard disk light number _, including the switch 22 The diagram power pack 240 and the light-emitting element 25 are turned on. The light-emitting element 250 can be referred to as a lamp, and the switch 220 is a transistor. The gate of the switch 220 is connected to the signal output terminal of the dish, and the cathode terminal of the diode 25 is not connected to the cathode. When the power supply 23 is connected to the transistor 2 by the resistor and the light is connected to the transistor 2, the signal output end of the hard disk 210 turns out a packet signal HS, so the switch 22 turns on, so that the 230 turns on the light-emitting element via the resistor. 250, so the finger of the hard disk 210 5 28004twf.doc/n 201003642 j. */ The indicator light will illuminate. Referring to FIG. 1 and FIG. 2, the motherboards 121 and 22 of FIG. 1 can be configured with a plurality of hard disk and light modules, such as a hard disk 21 and a light module 200, which are coupled by a power supply ln. On the motherboards 121 and 122, when the motherboard 121 is working, the power supply ιη will have the motherboard 22 will be provided 4, that is, the non-working motherboard 122 will also be provided. source. The hard disk in the non-working state inside the motherboard 122;: the south potential signal HS to the light module 200, so that the switch 22 is turned on, and the light τ ο 25G is illuminated 'so it is not a hard state The disc will also be issued $. Therefore, the wealth of the user causes the user to mix the state of the supplement I, and also makes it difficult for the user to judge the condition under the operation of the hard disk. SUMMARY OF THE INVENTION Therefore, Haoyue provides a lamp number of the control circuit of the hard disk (No. 4), which clearly indicates the operation of the hard disk; and the state of W ’ allows the user to clearly understand the operating condition of the hard disk. This month mentions (the control circuit of the hard disk light number, the light-emitting element is generated. The control circuit of the hard disk light number includes the first-inch system and the cathode end of the H-dipole body for receiving the source conduction end. g, come to the shirt and turn the electric brother to send the 7^ piece' to produce the hard disk light. Lei 7? The other switch of the control circuit is the transistor, the source is extremely coupled to the power supply' extreme extreme - Diode and 201003642 wuvw. a" 280 〇 4 twf. doc / n. And, the first illuminating element is the first illuminating diode. ~ In the present month of the month - in the embodiment, the hard disk light The control circuit further includes a pole body, a first resistor and a second resistor. The second diode is disposed on a path between the first switch and the first pole body, and the cathode end of the second diode is -2 The anode end of the pole body, and the first resistor is used to connect the anode terminal _ to the first switch of the second diode. The second power group is used to couple the first switch to the first illuminating component. The present invention also provides a lamp module suitable for a hard disk device, including a first component, a second component, and a control. In circuit 8, the control circuit consumes the second illuminating component and controls whether the second illuminating component is light or not, and the control circuit has a switch for transmitting the first illuminating component to the power source, and when the switch is turned on, the power source The illumination circuit of the light module includes a first diode, a second diode, a third diode, and a first resistor. The cathode end of the diode is connected to the control signal and the second element. In addition, the cathode end of the second diode is coupled to the anode end of the first diode, and the cathode of the third body is consumed. Connected to the second control signal and the second light-emitting element, the anode end of which is coupled to the cathode end of the second diode. Further, the first resistor is used to pass the anode end of the second diode through the control circuit. The second light-emitting element of the light-emitting module is a second light-emitting diode, and the cathode end is coupled to the first control signal and the cathode of the first diode and the first light-emitting diode The anode end of the body is coupled to the second control signal and 7 28〇〇4twf.d〇c/i 201003642 The cathode end of the second diode. The switch is - the first terminal consumes the power supply and the closed terminal consumes the control circuit = output = the source device is in the present; in the embodiment - the signal The module further comprises an optical element, a first transistor, a second resistor, a third resistor and a fourth resistor. The second hair 7G component is realized by a third light emitting diode, and the anode end of the body is lightly connected. a control signal and a cathode of the second-pole diode are coupled to the second control signal; and a second: to two=end member: the resistor is used to turn the first transistor Extremely consuming the younger brother "reading the H crystal and then the extremes of her first cow's source is grounded. The third resistor is _, to the hard disk device, to receive - the work signal, the fourth mountain U two resistors are commonly coupled to the hard disk device And the other end of the fourth resistor can be a secret power source. The control circuit and the lamp module of the hard disk light of the east can be controlled by the hard disk working state, and the state of the hard disk operation is confirmed by using the =. In order to make the above and other objects, features and advantages of the present invention more obvious, the preferred embodiments are described below, and in conjunction with the drawings, the details are as follows. [Embodiment] FIG. 3 will be shown as a schematic diagram of a multi-hard disk system. Referring to Figure 3, the multiple hard disk system 300 includes hard disk groups 32A and 34A, which can be controlled by different motherboards, for example, in the figure. Each-hard disk group has a different display 280 〇 4 twf.doc / n 201003642 ^ light, = such as 321 and 341, which is used to display the status of the respective hard disk group. In the present embodiment, the display lamps 321 and 341 can be realized by a light-emitting element such as a polar body. < A. L. - Figure 4 is a circuit diagram of a lamp module in accordance with a preferred embodiment of the present invention. Referring to FIG. 4, the lamp module 4A of the present embodiment can be applied to, for example, the multi-hard disk system 3 disclosed in FIG. In the lamp module 4A, at least the first light-emitting element 421 is included, and the first light-emitting element 421 can be the display light number 321 or 341 in the multi-hard disk system 300. As described above, the = light-emitting element 421 may be a light-emitting diode. In addition, the lamp module further includes a control circuit 45A, a second switch 442, a third resistor shirt 3, and a fourth resistor 434. The anode end of the first light-emitting element 421 can be connected to the control circuit 450, and the cathode end can be grounded through the second switch 442. In addition, one end of the second resistor 433 can be coupled to the switch 442, and the other end can be switched to the hard disk device with one end of the fourth resistor 434, and the other end of the fourth resistor can be coupled to a power source. P2. In this embodiment, the second switch 442 can utilize a transistor. The terminal 442 is not extremely operative to the cathode of the second illuminating element. The source terminal can be grounded, and the gate terminal can be coupled to the hard disk 460 through the third resistor. On the other hand, the control circuit 45A may include at least a first diode, a resistor 43, a first switch 441 and a second resistor 432. The first target body, the 4U cathode end can be connected to the first control signal (3), and the anode end can be coupled to the switch 441 via the first resistor 431. In this embodiment, the switch 441 can be a transistor 'the source terminal of the transistor can be turned 9 201003642 --------.V 28004twfdoc / n power supply p b is not extremely passable through the second resistor 432 # is connected to the anode end of the first illuminating element 42 ,, and the gate end of the first switch 441 can be coupled to the anode end of the first diode 441 via the first resistor 431. In the present embodiment, the potential of the power source P1 can be equal to the potential of the power source P2. In some embodiments, control circuit 450 can also include second diode 41 and second diode 413. The second diode may be disposed on the coupling path between the first diode 411 and the first resistor 431, and the cathode end of the r may be lightly connected to the anode end of the first diode 411, and the anode end is connected to the anode end. I is coupled to the gate terminal of the switch 441 through the first resistor 431. In addition, the cathode terminal of the third diode 413 can receive the second control signal CS2, and the anode terminal can be reduced to the cathode terminal of the second diode 412 together with the first diode 441. The fish figure 5% is shown as a display of the hard disk status. Referring to FIG. 4 and FIG. 5 together, the first control signal CS1 and the second control signal can be generated by the motherboard of the disk device 460. When I ? , 1, and ^ of the control hard disk device 460 are activated, one of the first control signal CS1 and the second control signal CS2 is in a low (L) state. At this time, at least one of the first diode and the third diode 413 is turned on, and the polar body 412 is also turned on. Since the electric 3 of the first switch 441 can be of the P-channel type, the first switch 441 is also turned on, and the power supply P1 can be transmitted to the anode end of the first light-emitting element 421. Aspect ‘ When the motherboard controlling the hard disk device 460 is activated, 442. 460 transmits a control signal having a high potential to the switch. At this time, the switch 442 can be turned on according to the control signal transmitted by the hard disk device 46 高 high power 28004 twf.doc / n 201003642 bits, so that the first ground; the first light-emitting element 442 is positive = hidden extreme grounding The first light-emitting element 442 is activated, and if m is λ, the motherboard on which the hard disk device is biased is not turned on, and the mi#ucsi and the second control signal CS2 are maintained at the local potential (H) state. At this time, neither the first diode 41 nor the third diode 413 is turned on, causing the second diode 412 to be in an open state. When the transistor gate terminal of the -th switch 441 is in a floating state, the transistor is not turned on. Those skilled in the art should be aware that at this time, the first light-emitting element 421 will not be illuminated regardless of whether the hard disk device 46G outputs a control signal of any state to the switch 442. Therefore, the present embodiment can ensure that the light-emitting element 421 does not malfunction and allows the user to misjudge. Referring back to FIG. 3, it can be seen from the above that the first light-emitting element 421 in FIG. 4 can be used to indicate the indicator number 321 or 341 of the hard disk group 32 〇 or 34 ;; 彳,, private light 321 or 341 Only the status of the respective overall hard disk group 320340 can be displayed 'but not the status of the individual hard disk device. Therefore, in some alternative embodiments, at least one of the indicator numbers 361 and 362 can be configured on each hard disk device. According to the indicator numbers 361 and 362 configured on each hard disk device, the user can know the current state of the corresponding hard disk. Referring to FIG. 4' again, in order to meet the above requirements, the second light-emitting element 422 and the third light-emitting element 423 may also be included in the light module 4A, which can be regarded as the indicator lights 361 and 362 in FIG. . Similarly, the second issue 11 28004twf.doc/n 201003642
V =元件422和第三發光元件423也可以利用發光二極體來 ^現。在本實施例中，第二發光元件422的陰極端耦接至 第一二極體411的陰極端，並且接收第一控制訊號cS1。 此外’第二發光元件422的陽極端則耦接至第三二極體413 的陰極端，並且接收第二控制訊號CS2。相對地，第三發 光元件423的陽極端和陰極端，則分別耦接至第二發光元 件422的陰極端和陽極端。 由於第二發光元件422和第三發光元件423彼此反 接，因此隨著第一控制訊號CS1和第二控制訊號CS2狀態 的不同，第二發光元件422和第三發光元件423可以顯示 對應之硬碟裝置的狀態。以下即以數個實施例來說明，如 何利用第二發光元件422和第三發光元件423來顯示對應 之硬碟裝置的狀態。 請再合併參照圖4與圖5，以下的說明都是利用硬碟 裝置460來舉例說明，本領域具有通常知識者應該可以自 行將其應用至圖3的多硬碟系統3〇〇中。假設，當硬碟裝 置460還未被啟動(power 〇ff)時，第一控制訊號csi和第 二控制訊號CS2的狀態都可以維持在高電位(H)，使得第 —發光元件422和第三發光元件423都不會導通。 相對地’當硬碟裝置460被啟動(power 〇n)時，則控制 硬碟裝置460的主機板便可以使第一控制訊號CS1為低電 位(L) ’並且使弟一控制訊號CS2為高電位(η)。此時，第 二發光元件422會被點亮，而第三發光元件423卻不會導 通〇 ' 12 28004twf.doc/n 201003642 在另一情況下，假設在執行硬碟46〇中的作業 鎖定(system lock)時，則第—控制訊號⑶與第二控制訊 號CS2都可以被切換至低電位(L)，導致第二發光元件奶 和第三發光元件423都不會導通因而不發亮。 —雖然圖5中提供了幾個實施例，來說明利用第二發光 元件422和第三發光元件423來指示對應之硬的裝置^〇 的狀態’然財發明並不以此為限。本領域具有通常知識 者y以依據實際情況下的需要，來操作第—㈣訊號⑶ 和^^控制訊號CS2的狀態。例如，當硬碟裝置正在被讀 寫資料時’使用者也可以不斷切換控制訊_極性，使得 對叙發光元制關爍的方式，來告知使时此—狀態。 綜合上述，本發明之硬碟燈號的控制電路與燈號^莫 組，可根據控制訊號驅動硬碟與主機板的發光元件，因此 不會有非工作狀態下卻顯示燈號的硬碟與主機板，所以使 用者便可清楚的掌握主機板與硬碟狀況。另外，燈號顯示 狀況亦可以藉由不同燈號的組合，例如發亮燈號二數$ 被點亮的情況，來顯示更多硬碟或是主機板的即時狀態， 例如動作中、鎖定中或是發生了錯誤。所以本發明不^可 以清楚掌握硬碟的操作情況，更可以提高㈣燈 靈活性。 1〜 雖然本發明已以較佳實施例揭露如上，然其並非用以 限^本發明，任何熟習此技藝者，在不脫離本發明之精神 圍内，當可作些許之更動與潤飾，因此本發明之保護 範圍當視後附之申請專利範圍所界定者為準。 13 28004twf.doc/n 201003642 fy 【圖式簡單說明】 圖1繪示為多主機板的伺服器系統圖。 圖2繪示為主機板内部一硬碟及其燈號模組電路圖。 圖3繪示為多硬碟系統示意圖。 圖4繪示為依照本發明之一較佳實施例的燈號模組 電路圖。 、、、’之 圖5繪硬碟狀態之顯示燈號表。 【主要元件符號說明】 111、112 =電源供應器 121、122、123、124 :主機板 210、33：1、332、333、35卜 4352、353 :硬碟 220 :開關 230 :電源 240 :電阻 250 :發光元件 320、 340 :主機板 321、 34卜361、362 :顯示燈號 400 燈號模組 411 第一二極體 412 第二二極體 413 第三二極體 421 第一發光元件 422 第二發光元件 423 第三發光元件 14 28004twf.doc/n 201003642 431 :第一電阻 432 :第二電阻 433 :第三電阻 433 :第四電阻 441 :開關 442 :第二電晶體 450 :控制電路 460 :硬碟裝置 P1 :電源 P2 :電源 CS1 :第一控制訊號 CS2 :第二控制訊號 HS :高電位訊號 1 15V = element 422 and third illuminating element 423 can also be realized using a light emitting diode. In this embodiment, the cathode end of the second illuminating element 422 is coupled to the cathode end of the first diode 411, and receives the first control signal cS1. In addition, the anode end of the second light-emitting element 422 is coupled to the cathode end of the third diode 413 and receives the second control signal CS2. In contrast, the anode end and the cathode end of the third light emitting element 423 are coupled to the cathode end and the anode end of the second illuminating element 422, respectively. Since the second illuminating element 422 and the third illuminating element 423 are reversed from each other, the second illuminating element 422 and the third illuminating element 423 can display a corresponding hard state according to the state of the first control signal CS1 and the second control signal CS2. The status of the disc device. Hereinafter, a plurality of embodiments will be described, and the second light-emitting element 422 and the third light-emitting element 423 are used to display the state of the corresponding hard disk device. Referring to FIG. 4 and FIG. 5 again, the following description is exemplified by the hard disk device 460, and those skilled in the art should be able to apply it to the multiple hard disk system 3 of FIG. It is assumed that when the hard disk device 460 has not been activated (power 〇 ff), the states of the first control signal csi and the second control signal CS2 can be maintained at a high potential (H), so that the first light-emitting element 422 and the third None of the light-emitting elements 423 are turned on. Relatively, when the hard disk device 460 is powered up, the motherboard controlling the hard disk device 460 can make the first control signal CS1 low (L)' and make the control signal CS2 high. Potential (η). At this time, the second light-emitting element 422 will be illuminated, and the third light-emitting element 423 will not be turned on. 12 12 12004twf.doc/n 201003642 In another case, it is assumed that the job lock in the hard disk 46〇 is performed ( In the case of system lock, both the first control signal (3) and the second control signal CS2 can be switched to the low potential (L), so that neither the second light-emitting element milk nor the third light-emitting element 423 is turned on and thus does not illuminate. - Although several embodiments are provided in Fig. 5, the use of the second illuminating element 422 and the third illuminating element 423 to indicate the state of the corresponding hard device is not limited thereto. The general knowledge in the art is to operate the state of the (4)th signal (3) and the ^^ control signal CS2 according to the actual situation. For example, when the hard disk device is being read and written, the user can also continuously switch the control signal polarity so that the state of the light source is turned off to inform the time-state. In summary, the control circuit and the lamp number of the hard disk light of the present invention can drive the light-emitting components of the hard disk and the motherboard according to the control signal, so that there is no hard disk with the light signal in the non-working state. The motherboard, so users can clearly understand the status of the motherboard and hard drive. In addition, the display status of the light can also display the real state of more hard disks or the motherboard by a combination of different light numbers, for example, the lighted number two is illuminated, for example, in motion, locked. Or an error has occurred. Therefore, the present invention does not clearly understand the operation of the hard disk, and can improve the flexibility of the (4) lamp. 1~ Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention, and any skilled person skilled in the art can make some modifications and retouchings without departing from the spirit of the invention. The scope of the invention is defined by the scope of the appended claims. 13 28004twf.doc/n 201003642 fy [Simple description of the diagram] Figure 1 shows the server system diagram of a multi-master board. 2 is a circuit diagram of a hard disk and its lamp module inside the motherboard. FIG. 3 is a schematic diagram of a multiple hard disk system. 4 is a circuit diagram of a lamp module in accordance with a preferred embodiment of the present invention. Figure 5 shows the display of the hard disk status. [Main component symbol description] 111, 112 = power supply 121, 122, 123, 124: motherboard 210, 33: 1, 332, 333, 35 b 4352, 353: hard disk 220: switch 230: power supply 240: resistance 250: light-emitting elements 320, 340: motherboard 321, 34, 361, 362: display light 400 light module 411 first diode 412 second diode 413 third diode 421 first light-emitting element 422 Second light-emitting element 423 third light-emitting element 14 28004twf.doc/n 201003642 431: first resistor 432: second resistor 433: third resistor 433: fourth resistor 441: switch 442: second transistor 450: control circuit 460 : Hard disk device P1 : Power supply P2 : Power supply CS1 : First control signal CS2 : Second control signal HS : High potential signal 1 15