201105992 六、發明說明： 【發明所屬之技術領域】 [_本發明ί歩及一種測試系统，尤指一種電源轉才無效率測試 系統。 [先前技術] [0002]電源轉換效率是指電源的輸入功率與輸出功率的比值. 即電源轉換效率=電源為主機提供的即時輸出功率/輸入 電源的即時功率xlOO%。一般來說，PC (Personal Computer，個人電腦）電源視範對電源轉換效率有著一 定的要求。最初電淨轉換效率僅有6im左右，在1ntei ( 英代爾）的ATX12V 1. 3電源規範中，規定電源的轉換效 率滿載時不得小於68%，而在ATX 12V 2. &1中，對電源 的轉換效率提出了更高的要求不得小於80%。因此在 PC電源生產完畢後，測試其電源轉換效率尤為必要。 [0003]如圖1所示的一種習知的測試電腦電源轉換效率的系統包 括一交流電源100、一功率計200、一待測PC電源300 ' 一第一萬用表400、一第二萬用表500、一第一單刀六擲 開關S1、一第二單刀六擲開關s2、一第三單刀六擲開關 S3及一電源測試用負載600。所述功率計200連接於所述 交流電源100及所述待測電源300之間，用於測量所述PC 電源300的輸入功率。所述PC電源3〇〇輸出多路電壓，如 12V、12Vcpu (提供給中央處理器的供電電路）、5V、 3.3V、-12V及5Vaux (5V的備份電壓），每一路電壓均 測 透過一電阻連接至所述負載600。操作開關幻使其分別 通至各路電壓的輸出端，所述第—萬用表4〇〇即可二，接 098127188 表單編號A0101 第4頁/共16頁 0982046572-0 201105992 取所述PC電源300的各路輸出電壓。操作開關“及^， 使所述第二萬用表40〇 一 —並聯接通矣各路輸出電壓外接 的電阻兩側’- ’測取各路輪出電廢外接電阻兩端的電 壓，透過公式I=U/R (電流等於壓電與電阻的比值），可 异出所述PC電源300各路輪出電流，透過公式ρ=ιυ (功 率等於電流與電壓的積），可計算出所述PC電源3〇〇的各 路輸出功率，將各路輪出功率相加即可得出所述？(：電源 300總的輸出功率。最後，計算所述pc電源3〇〇的總輸出 0 功率與其輸入功率的比值即可得出所述pc電源3〇〇的轉換 效率。 [0004]但是，習知的測試方法需要人工多次操作所述開關，逐201105992 VI. Description of the invention: [Technical field to which the invention pertains] [_ The present invention relates to a test system, and more particularly to a power conversion-inefficient test system. [Prior Art] [0002] Power conversion efficiency refers to the ratio of the input power to the output power of the power supply. That is, the power conversion efficiency = the instantaneous output power provided by the power supply to the host / the instantaneous power of the input power source x 100%. In general, PC (Personal Computer) power supply has certain requirements for power conversion efficiency. The initial net conversion efficiency is only about 6im. In the 1ntei (Anglar) ATX12V 1.3 power specification, the conversion efficiency of the power supply is specified to be no less than 68% at full load, while in ATX 12V 2. & The conversion efficiency of the power supply puts forward a higher requirement of not less than 80%. Therefore, it is especially necessary to test the power conversion efficiency after the PC power supply is completed. [0003] A conventional system for testing computer power conversion efficiency as shown in FIG. 1 includes an AC power supply 100, a power meter 200, a PC power supply to be tested 300', a first multimeter 400, and a second 20,000. The meter 500, a first single-pole six-throw switch S1, a second single-pole six-throw switch s2, a third single-pole six-throw switch S3, and a power test load 600 are used. The power meter 200 is connected between the AC power source 100 and the power source to be tested 300 for measuring input power of the PC power source 300. The PC power supply 3〇〇 outputs multiple voltages, such as 12V, 12Vcpu (power supply circuit provided to the central processing unit), 5V, 3.3V, -12V and 5Vaux (5V backup voltage), and each voltage is measured through one A resistor is coupled to the load 600. The operation switch is singularly connected to the output terminals of the respective voltages, and the first multimeter 4 can be two, connected to 098127188, the form number A0101, the fourth page, the total of the pages, the number of the PC power supply 300. Each channel output voltage. Operate the switch "and ^, so that the second multimeter 40 is connected in parallel - the two sides of the output voltage of each of the externally connected resistors are connected to each other '-' to measure the voltage across the external resistors of each of the road wheels, through the formula I=U/R (the current is equal to the ratio of the piezoelectric to the resistance), and the current of each of the PC power supply 300 can be different, and the formula ρ=ιυ (power is equal to the product of current and voltage) can be calculated. The output power of each power supply of the PC power supply can be obtained by adding the power of each round of the wheel ((: total output power of the power supply 300. Finally, calculating the total output 0 power of the pc power supply 3〇〇) The conversion efficiency of the pc power supply can be obtained from the ratio of the input power. [0004] However, the conventional test method requires manual operation of the switch multiple times.
一記錄所述PC電源300每一路輸出的電壓及電流，測試效 率低。 S 【發明内容】 [0005]寥於以上内容，有必要提供一種自動測試電源轉換效率 的測試系統。 .A voltage and current outputted by each of the PC power sources 300 are recorded, and the test efficiency is low. S SUMMARY OF THE INVENTION [0005] In view of the above, it is necessary to provide a test system for automatically testing power conversion efficiency. .
[00〇6] —種電源轉換效率測試系統，包括.一電源、一與所述電 源相連的交流電源、一功率計、一萬用表及一負載，所 述功率計連接於所述交流電源及所述電源之間以測量所 述電源的輸入功率，所述電源轉換效率測試系統還包括 一控制器、多個開關模組及一資料讀取及處理裝置，所 述控制器控制切換所述開關模組的狀態以使所述萬用表 測取得出所述電源總輸出功率所需的資料，所述資料讀 取及處理裴置讀取所述功率計及萬用表測取的資料，計 算出所述電源的轉換效率。 098127188 表單編號ΑΟίοι 第5頁/共16頁 0982046572-0 201105992 [0007] 相較于習知技術，本發明電源轉換效率測試系統利用控 [0008] 制器自動切換所述開關模組，並利用資料讀取及處理裝 置自動讀取測試資料並計算出電源的轉換效率，測試效 率提高。 【實施方式】 請參閱圖2，本發明較佳實施方式電源轉換效率測試系統 包括一MCU (微控制器）10，一待測PC電源20、一交流 開關30、一功率計40、一交流電源50、一電腦60 (或其 他具有資料讀取及處理功能的裝置）、一測試用的負栽 70、一萬用表80及若干開關K1-K13。所述PC電源2 〇可輸 出 12V、12Vcpu、5V、3. 3V、-12V及5Vaux等多路輪出 電壓，分別透過電阻Rl、R2、R3、R4、R5、R6連接至所 述負載70。 [0009] 所述微控㈣1〇發“餘制所航電獅的交流開關 30及PS0N(power 〇n’電源開啟）引腳的電平^ 使所訊镇難频衫Μ糊，料將 脚的_隐_電料低，以自動•所航電源= 〇 [0010] 所述微控制Is 1 〇還發出信號控告丨所、+ 現控制所迷開關K1-K13的閉合 或斷開狀態’其中K13為一雙刀螫施 $刀雙擲開關，當K13接通至 觸點A及接地觸點時，所述萬用矣、 禺用表80可分別測量所述PC電 源20的各路輸出電壓值，例如，使 使K1閉合，K2-K6斷開 ，即可測量所述PC電源20的第-路(m)輸出… 後使則合，斷開，即可___2: 的第二路（12Vcpu)輪出電壓 歷如此迴圏，測量所述PC 098127188 表單編號A0101 第6頁/共16頁 0982046572-0 201105992 [0011] ό [0012] [0013] ❹ [0014][00〇6] A power conversion efficiency test system includes: a power source, an AC power source connected to the power source, a power meter, a multimeter, and a load, wherein the power meter is connected to the AC power source and the Between the power sources to measure the input power of the power source, the power conversion efficiency test system further includes a controller, a plurality of switch modules, and a data reading and processing device, the controller controls switching the switch modes The state of the group is such that the multimeter determines the data required to obtain the total output power of the power source, and the data reading and processing device reads the data measured by the power meter and the multimeter to calculate the power source. Conversion efficiency. 098127188 Form No. ΑΟίοι Page 5 of 16 0982046572-0 201105992 [0007] Compared with the prior art, the power conversion efficiency test system of the present invention automatically switches the switch module by using a control device and utilizes data. The reading and processing device automatically reads the test data and calculates the conversion efficiency of the power supply, and the test efficiency is improved. [Embodiment] Referring to FIG. 2, a power conversion efficiency testing system according to a preferred embodiment of the present invention includes an MCU (microcontroller) 10, a PC power supply 20 to be tested, an AC switch 30, a power meter 40, and an AC power supply. 50. A computer 60 (or other device having data reading and processing functions), a test load 70, a ten thousand watch 80, and a plurality of switches K1-K13. The PC power supply 2 输 can output multi-channel output voltages of 12V, 12Vcpu, 5V, 3.3V, -12V and 5Vaux, and are connected to the load 70 through resistors R1, R2, R3, R4, R5, and R6, respectively. [0009] The micro-control (four) 1 bursts the level of the AC switch 30 and the PS0N (power 〇n' power-on) pin of the vacant air lion. The _ hidden_electric material is low, to automatically • the voyage power = 〇 [0010] The micro-control Is 1 〇 also sends a signal to slam the shackle, + now controls the closed or open state of the switch K1-K13' K13 is a pair of knives and a double-throw switch. When K13 is connected to the contact A and the grounding contact, the universal cymbal and cymbal table 80 can respectively measure the output voltages of the PC power supply 20 respectively. For example, if K1 is closed and K2-K6 is turned off, the first-way (m) output of the PC power supply 20 can be measured, and then the second path (ie, ___2: can be turned on and off). 12Vcpu) The voltage of the turn-up is as follows, measuring the PC 098127188 Form No. A0101 Page 6 / 16 pages 0982046572-0 201105992 [0011] [0013] [0014] [0014]
電源20的每一路輪出電麇值。所述pC電源20的各路輸出 電歷的實際值與理想值有偏差，所述萬用表80測量的是 各路輪出電麗的實際值。 當K13接通至觸點B*c時’所述萬用表80可分別測取電阻 Rl至R6兩端的電愿，例如’使K7閉合，K8-K12斷開，萬 用表80與電阻以並聯玎測得電阻R1兩端的電壓，然後使 K8閉合，K7及K9至K12斷開，萬用表80與電阻R2並聯可 測得電阻R2兩端的電壓，如此迴圈’可測得電阻R1至R6 兩端的電壓。電阻R1至K6的阻值是已知的，透過公式 I=U/R即可算出所述PC嚷滹20的各路輸出電流。 所述交流開關30與所述Pc€源20相連，所述功率計40連 接於所述交流開關30及所述交流電源50-間，用於測取 所述PC電源20的輸入功率€源° 所述電腦60與所述功率計40及萬用表80相連，可即時讀 取所述功率計40及所述萬用表8刀測得的數據。所述電腦 60還存儲有所述電阻R1裘R6的阻值並裝有計算工具，可 自動計算出所述PC電源2〇的各路輸出電流、所述PC電源 20的總輸出功率、所述PC電源的轉換效率等。 請參閱圖3及圖4’所述微控制器1〇的P2. 0至P2. 6引腳分 別連接至1一第一開關模組11、一第一開關模組12、一第 三開關模組13、一第四開關模組14、一第五開關模組15 、一第六開關模組16及一第七開關模組17，輸出信號自 動切換所述開關K1至K13的閉合或斷開狀態。所述微控制 器10的P10引腳輸出PSON信號控制所述pc電源20的PSON 098127188 表單編號A0101 第7頁/共16頁 0982046572-0 201105992 引腳的電平高低，P13引腳輸出AC SW (Alternating Current Swich，交流開關）信號控制所述交流開關30 的狀態。 [0015] 所述第一開關模組11包括一PNP型電晶體Q1，一二極體 D1及所述開關K1及K7。所述電晶體Q1的基極透過一電阻 連接至所述微控制器10的P2. 0引腳，射極接電源VCC， 集極與二極體D1的陰極相連，二極體D1的陽極接地。K1 及K7均為雙刀單擲繼電器開關，均與所述二極體D1並聯 。當所述微控制器10的P2. 0引腳的信號為高電平時，電 晶體Q1截止，其集極為低電平，繼電器開關K1及K7的線 圈中的電流很小（小於繼電器觸點自動閉合所需的電流 )，K1及K7呈斷開狀態。當所述微控制器10的P2. 0引腳 的信號為低電平時，電晶體Q1導通，其集極為高電平， 繼電器開關K1及K7的線圈中電流變大（達到繼電器觸點 自動閉合所需的電流），K1及K7呈閉合狀態。 [0016] 所述第二開關模組12包括一 PNP型電晶體Q2，一二極體 D2及所述開關K2及K8，K2及K8均為雙刀單擲繼電器開關 〇 [0017] 所述第三開關模組13包括一 PNP型電晶體Q3，一二極體 D3及所述開關K3及K9，K3及K9均為雙刀單擲繼電器開關 〇 [0018] 所述第四開關模組14包括一PNP型電晶體Q4，一二極體 D4及所述開關K4及K10，K4及K10均為雙刀單擲繼電器開 關。 098127188 表單編號A0101 第8頁/共16頁 0982046572-0 201105992 [0019] 所述第五開關模組15包括一 ΡΝΡ型電晶體Q5，一二極體 D5及所述開關Κ5及Kll，Κ5及Κ11均為雙刀單擲繼電器開 關。 [0020] 所述第六開關模組16包括一 ΡΝΡ型電晶體Q6，一二極體 D6及所述開關Κ6及Κ12，Κ6及Κ12均為雙刀單擲繼電器開 關。 [0021] ό [0022] 所述第二開關模組12、第三開關模組13、第四開關模組 14、第五開關模組15及第六開關模組16與所述第一開關 模組11的工作原理相同。 Ο [0023] 所述第七開關模組17包括一電晶體Q7，一二極體D7及所 述開關K13, K13為雙刀雙擲繼電器開關，在初始狀態時 接通觸點A及接地觸點。當所述微控制器10的P2. 6引腳的 信號為高電平時，電晶體Q7截止，其集極為低電平，K13 線圈中的電流很小，K13處於初始狀態，與觸點A及接地 觸點接觸。當所述微控制器10的P2. 6引腳的信號為低電 平時，電晶體Q7導通，其集極為高電平，K13的線圈中的 電流增大，在磁力的作用下轉而接觸觸點B及C。 測試時，先測取所述PC電源20第一路輸出的電壓及電流 ，使K13先處於所述初始狀態，接通觸點A及接地觸點， 所述微控制器10根據程式設定發出信號使開關K1及K7導 通，K2及K8、K3及K9、K4及K10、K5及Kll、K6及K12斷 開，所述萬用表80測取所述PC電源20的第一路（12V) 輸出電壓並將測取資料傳送至所述電腦60 ;然後，使K13 切換至另一位置，接通觸點B及C，K1及K7繼續保持導通 098127188 表單編號A0101 第9頁/共16頁 0982046572-0 201105992 將—並 所述第-輪出的電流，進而=所述電•可算出 此，依次測取路的輸出功率。如 [0024] 電觸自…織===’並由所述 :一—提 舉凡熟悉本案技藝之人士其所爰依發明之較隹實施例， 之等效修#或變化，皆應涵蓋又本案之創作精神所作 。 、下之申請專利範固内 【圖式簡單說明】 ' _圖1係一習知的電源轉換效率測試系統的組成圖。 闕圖2係、本發明較佳實施方式 圖。 換政率娜試系統的級成 [0027] 圖3及圖4係本發明較佳實施方式電源轉換 中微控制器及其週邊電路的具體電路目、效率測試系統 【主要元件符號說明】 [0028] 微控制器 "―-~~--τ 10 功率計 _ 交流開關 17 20 交流電源 1 Q| 40 負載 70 _ 開關模組 098127188 表單編號A0101 第1〇頁/共16頁Each wheel of the power source 20 is powered off. The actual value of each output electrical history of the pC power source 20 deviates from the ideal value, and the multimeter 80 measures the actual value of each of the road wheels. When K13 is connected to the contact B*c, the multimeter 80 can respectively measure the electric power at both ends of the resistors R1 to R6, for example, 'K7 is closed, K8-K12 is disconnected, and the multimeter 80 and the resistor are measured in parallel. The voltage across the resistor R1, then K8 is closed, K7 and K9 to K12 are disconnected, and the multimeter 80 and the resistor R2 are connected in parallel to measure the voltage across the resistor R2, such that the loop 'measures the voltage across the resistors R1 to R6. The resistance values of the resistors R1 to K6 are known, and the output currents of the PC 嚷滹 20 can be calculated by the formula I = U / R. The AC switch 30 is connected to the P20 source 20, and the power meter 40 is connected between the AC switch 30 and the AC power source 50- for measuring the input power of the PC power source 20. The computer 60 is connected to the power meter 40 and the multimeter 80, and can instantly read the data measured by the power meter 40 and the multimeter 8. The computer 60 further stores the resistance of the resistor R1裘R6 and is equipped with a calculation tool, which can automatically calculate the output current of the PC power source 2〇, the total output power of the PC power source 20, and the Conversion efficiency of PC power supply, etc. Referring to FIG. 3 and FIG. 4', the P2. 0 to P2. 6 pins of the microcontroller 1 are respectively connected to the first switch module 11, the first switch module 12, and the third switch module. The group 13, the fourth switch module 14, the fifth switch module 15, the sixth switch module 16, and the seventh switch module 17, the output signal automatically switches the switches K1 to K13 to close or open. status. The P10 pin of the microcontroller 10 outputs a PSON signal to control the PSON of the pc power supply 20 098127188 Form No. A0101 Page 7 / Total 16 pages 0904456572-0 201105992 Pin level, P13 pin output AC SW ( The Alternating Current Swich signal controls the state of the AC switch 30. [0015] The first switch module 11 includes a PNP type transistor Q1, a diode D1 and the switches K1 and K7. The base of the transistor Q1 is connected to the P2.0 pin of the microcontroller 10 through a resistor, the emitter is connected to the power supply VCC, the collector is connected to the cathode of the diode D1, and the anode of the diode D1 is grounded. . K1 and K7 are double-pole single-throw relay switches, which are all connected in parallel with the diode D1. When the signal of the P2.0 pin of the microcontroller 10 is high, the transistor Q1 is turned off, the set is extremely low, and the current in the coils of the relay switches K1 and K7 is small (less than the relay contact automatically) The current required to close), K1 and K7 are off. When the signal of the P2.0 pin of the microcontroller 10 is low, the transistor Q1 is turned on, the set is extremely high, and the current in the coils of the relay switches K1 and K7 becomes large (the relay contact is automatically closed). The required current), K1 and K7 are closed. [0016] The second switch module 12 includes a PNP type transistor Q2, a diode D2 and the switches K2 and K8, and K2 and K8 are double-pole single-throw relay switches 〇[0017] The three-switch module 13 includes a PNP-type transistor Q3, a diode D3 and the switches K3 and K9, and K3 and K9 are double-pole single-throw relay switches. [0018] The fourth switch module 14 includes A PNP type transistor Q4, a diode D4 and the switches K4 and K10, K4 and K10 are double-pole single-throw relay switches. 098127188 Form No. A0101 Page 8 of 16 0982046572-0 201105992 [0019] The fifth switch module 15 includes a 电-type transistor Q5, a diode D5 and the switches Κ5 and K11, Κ5 and Κ11 All are double pole single throw relay switches. [0020] The sixth switch module 16 includes a 电-type transistor Q6, a diode D6 and the switches Κ6 and Κ12, and the Κ6 and Κ12 are double-pole single-throw relay switches. [0021] The second switch module 12, the third switch module 13, the fourth switch module 14, the fifth switch module 15, and the sixth switch module 16 and the first switch module Group 11 works the same way. [0023] The seventh switch module 17 includes a transistor Q7, a diode D7 and the switch K13, and the K13 is a double-pole double-throw relay switch. In the initial state, the contact A and the ground contact are turned on. point. When the signal of the P2.6 pin of the microcontroller 10 is high, the transistor Q7 is turned off, the set is extremely low, the current in the K13 coil is small, K13 is in the initial state, and the contact A and Ground contact contact. When the signal of the P2.6 pin of the microcontroller 10 is low, the transistor Q7 is turned on, the set is extremely high, the current in the coil of K13 is increased, and the contact is made under the action of the magnetic force. Point B and C. During the test, the voltage and current outputted by the first circuit of the PC power supply 20 are first measured, so that K13 is in the initial state first, the contact A and the ground contact are turned on, and the microcontroller 10 sends a signal according to the program setting. The switches K1 and K7 are turned on, K2 and K8, K3 and K9, K4 and K10, K5 and K11, K6 and K12 are disconnected, and the multimeter 80 measures the output voltage of the first (12V) of the PC power source 20 and Transfer the measured data to the computer 60; then, switch K13 to another position, turn on contacts B and C, and K1 and K7 remain turned on. 098127188 Form No. A0101 Page 9 / Total 16 Page 0904456572-0 201105992 The current of the first round and the current of the first round can be calculated, and the output power of the way is measured in turn. For example, [0024] electrical contact from: weaving ===' and by the above: one - to mention those who are familiar with the art of the present invention, the equivalent embodiment of the invention, the equivalent repair or change, should cover The spirit of the creation of this case. The patent application model is as follows [Simplified illustration] ' _ Figure 1 is a composition diagram of a conventional power conversion efficiency test system. 2 is a view of a preferred embodiment of the present invention. [0027] FIG. 3 and FIG. 4 are specific circuit elements and efficiency test systems of a microcontroller and its peripheral circuits in a power conversion according to a preferred embodiment of the present invention. [Main component symbol description] [0028] Microcontroller"―-~~--τ 10 Power Meter_ AC Switch 17 20 AC Power 1 Q| 40 Load 70 _ Switch Module 098127188 Form No. A0101 Page 1 of 16