201105003 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明係關於一種供電系統，尤指一種具有冗餘電源的 供電系統。 • 【先前技術】 [0002] 目前，在伺服器等大型的電子設備中，供電系統一般都 具有冗餘電源設計，即包括複數電源供應器設計成冗餘 架構來為電子設備供電，當某一個電源供應器出現故障 時，其他電源供應器可代替故障的電源供應器繼續為電 ^ 子設備供電。 [0003] 惟，習知的電子設備的冗餘電源供電系統具有如下弊端 :第一，當某一電源供應器出現故障時，雖然其自身不 .... :...... 會繼續工作，但提供給該故障的電源供應器的外部交流 電源仍然將電源訊號不間斷地輸入至該故障的電源供應 器，有可能會給該故障的電源供應器内部的一些電子元 ：；. 件造成損壞；第二，由於該故障的電源供應器不能工作 Q ，故其上的散熱風扇也同時停止工作，不能繼續散熱會 導致該故障的電源供應器中部分電子元件出現燒毀的可 能。. 【發明内容】 [0004] 鑒於上述内容，有必要提供一種具有保護功能的冗餘電 源供電系統，以防止某一電源供應器出現故障後損壞或 燒毁。 [0005] —種冗餘電源供電系統，包括一設有共用式電源模組及 微控制器的配電板及複數電源供應器，每一電源供應器 * 098125758 表單編號A0101 第3頁/共12頁 0982044131-0 201105003201105003 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a power supply system, and more particularly to a power supply system having a redundant power supply. • [Prior Art] [0002] At present, in large electronic devices such as servers, power supply systems generally have redundant power supply designs, that is, multiple power supplies are designed as redundant architectures to power electronic devices. In the event of a power supply failure, other power supplies can continue to power the electrical equipment in place of the failed power supply. [0003] However, the redundant power supply system of the conventional electronic device has the following disadvantages: First, when a power supply fails, although it does not itself.... :...... will continue Working, but the external AC power supplied to the faulty power supply still inputs the power signal uninterruptedly to the faulty power supply, and some electronic components inside the faulty power supply may be given: Secondly, because the faulty power supply cannot work Q, the cooling fan on the same also stops working at the same time. Failure to continue to dissipate heat may cause some electronic components in the faulty power supply to burn out. SUMMARY OF THE INVENTION [0004] In view of the above, it is necessary to provide a redundant power supply system having a protection function to prevent damage or burnout of a power supply after a failure. [0005] A redundant power supply system, comprising a power distribution board and a multiple power supply with a shared power module and a microcontroller, each power supply * 098125758 Form No. A0101 Page 3 of 12 0982044131-0 201105003
句匕括AC~DC轉換模組、一風扇模組及一設於該 轉換模組與—外泣 DC 關槿组，姑 電源之間由該微控制器控制的開 :“風扇模組接收該共用式電源模組提供的電源 /某—電源供應器出現故障時，該微控制器根據該故 P早電源供應H的狀態訊號控制該開關模組切斷該 換換組與外部交流電源之間的連接，且控制該風扇模也 中的風扇繼續正常工作或加速工作。 、、、 [0006] [0007] [0008] 上=几餘電源供電系統透過在該AC-DC轉換模組與—外部 、電源之間没置該開關模組，可使該微控制器在某— 電源供應器出現故障時控制對應的開關模組切斷該Μ —DC 5模組與外部交流電源之間的連接，從而防止了外部 又机電源可能對電源供應器内部的_些電子元件造成損 一同時由於該風扇模組接收的是該共用式電源模組 提供的宅源’故不會斷電，此時該微控制器繼續控制該 風扇繼續正常工作或加速卫作，避免了該電源供應器出 現故障的部分發生燒毀的可能。 【實施方式】 睛參照圖1，本發明冗餘電源供電系統10用於為-電子設 備如飼服器20提供電源，該冗餘電源供電系統J 〇的較 佳實施方式包括一配電板（power distribution d，PDB) loo及複數電源供應器（p〇wer unit，PSU)，為清楚地理解本發明，本實施方式中僅 給出兩個電源供應器200及300加以舉例說明，電源供應 器的數量可根據實際需要相應的增加。 S —電板包括一微控制器（micro control unit 098125758 表單編號A0101 第4頁/共12頁 0982044131-0 201105003 MCU) 110及一共用式電源模組120，該共用式電源模組 120用於接收該電源供應器2〇〇及3〇〇的直流電源，並作 冗餘處理後輪出給該伺服器20。由於該共用式電源模組 12 0為I知技術’故此處不具體給出該共用式電源模组 120與該該電源供應器2〇〇及300之間的連接關係與工作 原理。 [0009] Ο 該電源供應器200及300的内部結構相同，均包括一交流 轉直流（AC-DC)轉換模組210，用於將接收的外部交流 電源（未示出）轉換成直流電源以輸出給該共用式電源 模組120 ; —開關模組220，用於控制該AC-DC轉換模組 210與該共用式電源模組120之間的連接；及—風扇模組 230 ’用於為該電源供應器200及300的内部元件進行散 熱。 [0010] ❹ 該微控制器110用於接收該電源供應器:2·〇〇及3〇〇的狀態 訊號，並根據該狀態訊號判斷該電源供應器2〇〇及3〇〇工 作是否正常’當某一電源供應器200或300工作異常時， 該微控制器110控制對應的開關模組2 2 0以切斷對應的 AC-DC轉換模組21 0與該共用式電源模組12〇之間的連接 ’從而保證外部交流電源不會損壞或燒毁工作異常的電 源供應器的内部電路，同時，該微控制器110控制對應的 風扇模組230繼續工作或加速工作，以進一步降低該異常 的電源供應器的内部元件的損壞或燒毁的程度。由於該 微控制器110接收該電源供應器200及300的狀態訊號為 習知技術，故本實施方式中未給出具體電路及工作原理 描述。 098125758 表單編號Α0101 第5頁/共12頁 0982044131-0 201105003 [0011] 一、、圖2該微控制器110與其中—個電源供應器200的 具體電路及連接關係描述如下。 [0012]該電源供應器200包括一火綠垃你^ 人線接收知1^及一零線接收端j\j， 用於接收該外部交流電源。該開關模組220連接在該火線 接收端L及零線接收端N與該【此轉換模組21〇之間，其 包括-繼電器222及-N溝道場效應電晶體q，該繼電器 222包括兩開關π、K2及-線圈：f。該開關K1連接在該火 線接收端L與該AC-DC轉換模組21〇之間，該K2連接在該 零線接收端Ν與該AC-DC轉換模組210；^間，該線圈j的— 端接地，另一端連接直_場效應電晶體Q的源極（第一端 )，該場效應電晶體Q的汲極（第二端)接收由該共用式 電源模組120輸出的一 3. 3V意源，該場敢應電晶體q的閘 極（控制端）連接至該微控制器Π0的.一控制引腳 FAN1_C。The sentence includes an AC~DC conversion module, a fan module, and a switch module and an outer weeping DC switch group, and the microcontroller is controlled by the microcontroller: "the fan module receives the When the power supply/a power supply provided by the shared power module fails, the microcontroller controls the switch module to cut off the exchange group and the external AC power according to the status signal of the early P power supply H. Connection, and control the fan in the fan module to continue normal operation or accelerate work.,,, [0006] [0007] [0008] on = several power supply systems through the AC-DC conversion module and - external The switch module is not disposed between the power sources, so that the microcontroller can control the corresponding switch module to cut off the connection between the DC module and the external AC power source when a power supply fails. Therefore, the external power supply may be prevented from causing damage to some electronic components inside the power supply. At the same time, since the fan module receives the home source provided by the shared power module, the power is not turned off. The microcontroller continues to control the fan to continue If the power supply is faulty, the power supply system 10 is used for the electronic equipment such as the feeding device 20. The embodiment of the present invention is directed to FIG. Providing a power supply, the preferred embodiment of the redundant power supply system J 包括 includes a power distribution d (PDB) loo and a plurality of power supply (PSU) units, for a clear understanding of the present invention, In the embodiment, only two power supplies 200 and 300 are given for illustration, and the number of power supplies can be increased according to actual needs. S - The power board includes a microcontroller (micro control unit 098125758 Form No. A0101 No. 4 Page / Total 12 pages 0982044131-0 201105003 MCU) 110 and a shared power module 120, the shared power module 120 is used to receive DC power of the power supply 2〇〇 and 3〇〇, and redundant After the processing, the server 20 is rotated out. Since the shared power module 120 is a known technology, the shared power module 120 and the power supply 2 and 300 are not specifically provided herein. The connection relationship and working principle. [0009] Ο The power supply 200 and 300 have the same internal structure, and each includes an AC-DC conversion module 210 for receiving external AC power (not The switch module 220 is configured to convert the DC power supply to the shared power module 120; and the switch module 220 is configured to control the connection between the AC-DC conversion module 210 and the shared power module 120; The fan module 230' is used to dissipate heat from the internal components of the power supplies 200 and 300. [0010] ❹ The microcontroller 110 is configured to receive the status signal of the power supply: 2·〇〇 and 3〇〇, and determine whether the power supply 2〇〇 and 3〇〇 work normally according to the status signal. When a certain power supply 200 or 300 works abnormally, the microcontroller 110 controls the corresponding switch module 220 to cut off the corresponding AC-DC conversion module 21 0 and the shared power module 12 The connection between the two ensures that the external AC power source does not damage or burn the internal circuit of the power supply that is abnormally working. At the same time, the microcontroller 110 controls the corresponding fan module 230 to continue working or accelerate to further reduce the abnormality. The extent to which the internal components of the power supply are damaged or burned. Since the state signals of the power supply devices 200 and 300 are received by the microcontroller 110, the specific circuit and working principle are not described in this embodiment. 098125758 Form No. Α0101 Page 5 of 12 0982044131-0 201105003 [0011] 1. The specific circuit and connection relationship between the microcontroller 110 and one of the power supplies 200 are described below. [0012] The power supply 200 includes a fire green, a human line receiving terminal 1 and a zero line receiving end j\j for receiving the external AC power. The switch module 220 is connected between the live line receiving end L and the neutral line receiving end N and the [conversion module 21A, which includes a relay 222 and an -N channel field effect transistor q, and the relay 222 includes two Switch π, K2 and - coil: f. The switch K1 is connected between the live line receiving end L and the AC-DC conversion module 21A, and the K2 is connected between the neutral line receiving end and the AC-DC conversion module 210; — the terminal is grounded, and the other end is connected to the source (first end) of the field effect transistor Q. The drain (second end) of the field effect transistor Q receives a 3 output from the shared power module 120. 3V source, the field dare to connect the gate (control terminal) of the transistor q to the control pin FAN1_C of the microcontroller Π0.
[0013]該風扇模組230包括一風扇232，該風扇232包括一脈寬 調變（Pulse-Width Modulation，PWM)訊號引腳PWM 、一電源引腳VCC、一接地|丨腳GND及一偵測引腳TACH。 該電源引腳VCC接收由該共用式電源模組120輸出的一 12V電源並透過兩濾波電容C1及C2接地，該接地引腳GND 接地。該PWM訊號引腳PWM經一電阻R1接收該微控制器 110的PWM訊號引腳FAN1_PWM輸出的PWM訊號，以控制該 風扇232的轉速’該PWM訊號引腳PWM還經該電阻R1連接 至一二極體Dl的陽極。該二極體D1的陰極接收由該共用 式電源模組12〇輸出的3. 3V電源’ 一電阻R2與該二極體 D1並聯連接。該偵測引腳以⑶連接至一二極體D2的陰極 098125758 表單編號A0101 第6頁/共12頁 0982044131-0 201105003 及連接至一二極體D3的陰極’該二極體D2的陽極接地， Ο [0014] 該二極體D3的陽極經一電阻R3連接至該微控制器u〇的偵 測引腳FAN1 一TACH。該二極體D3的陽極還經該電阻以及 一電阻R4後接收由該共用式電源模組12〇輸出的3· ”電 源，該二極體D3的陽極還經該電阻R3及一電容C3接地。 該風扇模組330與該微控制器11〇的控制引腳FAN2_C、 PWM訊號引腳FAN2_PWM、偵測引腳FAN2_TACH之間的連 接關係與該風扇模組2 3 0相同，這裡不再贅述◊其中，咳 二極體D1及D2產生電壓保護的作用，可以根據需要刪除 ’該電谷C1-C3產生渡波的作用’也可根據需要刪除。 正常工作時，該微控制器110的控制引腳FAN1_C、 FAN2-C輸出低電平訊號，此時，該場效應電晶體Q截止， 進而使該繼電器220上的開關ΚΙ、K2處於閉合狀態，該 AC-DC轉換模組210及該風扇模組230均正常工作，同理 ’該AC-DC轉換模組310及該風扇，模組330也正常工作。 [0015] Ο 當其中某一個電源供應器，如電源供應器2〇〇發生故障時 ，該微控制器110的控制引腳FAN1_C變為高電平訊號， 此時’該場效應電晶體Q導通，進而使該繼電器220上的 開關ΚΙ、K2處於開啟狀態’該AC-DC轉換模組21〇無法接 收外部交流電源而停止工作，故而防止了該外部交流電 源可能對電源供應器200内部的一些電子元件造成損壞》 同時，由於該風扇模組230接收的是該共用式電源模組 120提供的3. 3V、12V電源，故不會斷電，此時，該微控 制器110的PWM訊號引腳FAN 1 _PWM將繼續輸出原來的pwm 訊號或提高PWM訊號的工作週期，進而控制該風扇232繼 098125758 表單編號A0101 第7頁/共12頁 0982044131-0 201105003 續正常工作或加速工作，以避免該電源供應器200中出現 故障的部分發生燒毁的可能。 [0016] [0017] [0018] 综上所述，本發明符合發明專利要件，爰依法提出專利 申請。惟，以上所述者僅為本發明之較佳實施例，舉凡 熟悉本案技藝之人士，在爰依本發明精神所作之等效修 飾或變化，皆應涵蓋於以下之申請專利範圍内。 【圖式簡單說明】 圖1係本發明冗餘電源供電系統較佳實施方式連接一電子 設備的框圖。 圖2係本發明冗餘電源供電系統較佳實施方式的局部電路 圖。 【主要元件符號說明】 [0019] 冗餘電源供電 10 配電板 100 系統 微控制器 110 共用式電源模 120 組 電源供應器 200 、 300 AC-DC轉換模 210 、 310 組 開關模組 220 、 320 風扇模組 230 ' 330 伺服器 20 繼電器 220 場效應電晶體 Q 開關 ΚΙ、K2 線圈 J 風扇 232 電容 C1-C3 電阻 R1-R4 二極體 D1-D3 表單編號A0101 第8頁/共12頁 0982044131-0 098125758The fan module 230 includes a fan 232 including a Pulse-Width Modulation (PWM) signal pin PWM, a power pin VCC, a grounding, a GND, and a Detector. Test pin TACH. The power pin VCC receives a 12V power output from the shared power module 120 and is grounded through the two filter capacitors C1 and C2. The ground pin GND is grounded. The PWM signal pin PWM receives the PWM signal outputted by the PWM signal pin FAN1_PWM of the microcontroller 110 via a resistor R1 to control the rotation speed of the fan 232. The PWM signal pin PWM is also connected to the resistor R1 through the resistor R1. The anode of the polar body D1. The cathode of the diode D1 receives a 3. 3V power supply output from the common power supply module 12A. A resistor R2 is connected in parallel with the diode D1. The detection pin is connected to the cathode 098125758 of a diode D2 by (3). Form No. A0101 Page 6 / 12 pages 0982044131-0 201105003 and the cathode connected to a diode D3 'The anode of the diode D2 is grounded [0014] The anode of the diode D3 is connected to the detection pin FAN1-TACH of the microcontroller u through a resistor R3. The anode of the diode D3 is further received by the resistor and the resistor R4, and the anode of the diode D3 is also grounded via the resistor R3 and a capacitor C3. The connection relationship between the fan module 330 and the control pin FAN2_C, the PWM signal pin FAN2_PWM, and the detection pin FAN2_TACH of the microcontroller 11 is the same as that of the fan module 2 3 0, and details are not described herein again. Among them, the cough diodes D1 and D2 generate voltage protection, and the function of generating the wave of the electric valley C1-C3 can be deleted as needed. It can also be deleted as needed. In normal operation, the control pin of the microcontroller 110 FAN1_C and FAN2-C output a low level signal. At this time, the field effect transistor Q is turned off, and then the switches ΚΙ and K2 on the relay 220 are in a closed state, and the AC-DC conversion module 210 and the fan module are closed. 230 is working normally. Similarly, the AC-DC conversion module 310 and the fan and the module 330 are also working normally. [0015] Ο When one of the power supplies, such as the power supply 2, fails, The control pin FAN1_C of the microcontroller 110 becomes a high level signal, at which time the field effect transistor Q is turned on, and the switches ΚΙ and K2 on the relay 220 are turned on. The AC-DC conversion module 21 〇 cannot receive external AC power and stops working, so The internal AC power supply may be prevented from causing damage to some electronic components inside the power supply 200. Meanwhile, since the fan module 230 receives the 3. 3V, 12V power supply provided by the shared power module 120, When the power is off, at this time, the PWM signal pin FAN 1 _PWM of the microcontroller 110 will continue to output the original pwm signal or increase the duty cycle of the PWM signal, thereby controlling the fan 232 following 098125758 Form No. A0101 Page 7 of 12 Page 0902044131-0 201105003 Continues normal operation or accelerates work to avoid the possibility of burnout of the faulty portion of the power supply 200. [0017] [0018] In summary, the present invention complies with the invention patent requirements Patent application is filed according to law. However, the above is only a preferred embodiment of the present invention, and those skilled in the art of the present invention are equivalent in the spirit of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a preferred embodiment of a redundant power supply system of the present invention connected to an electronic device. FIG. 2 is a redundancy diagram of the present invention. Partial circuit diagram of the preferred embodiment of the power supply system. [Main component symbol description] [0019] Redundant power supply 10 Distribution board 100 System microcontroller 110 Common power supply mode 120 Group power supply 200, 300 AC-DC conversion mode 210, 310 group switch module 220, 320 fan module 230 ' 330 server 20 relay 220 field effect transistor Q switch K, K2 coil J fan 232 capacitor C1-C3 resistor R1-R4 diode D1-D3 form number A0101 Page 8 / Total 12 pages 0992044131-0 098125758