201226931 六、發明說明： 【發明所屬之技術領域】 本發明係有關於一種電容器測量方法與電容器測試電路，尤 其是一種用以檢測電容器之電容值的測量方法與其測試電路。 【先前技術】 -般而言’ f容在抑電路巾實際錢的顏不能超過其耐 疋值。因此，不同的電路應該選用不同種類的電容。舉例而古， 諧振、變壓等電路迴路可以選用雲母、陶瓷等高頻電容；而濾波 電路可以選用電解旁路電容。在各類電容出廠並且電性設置於實 際電路之前，皆必須完成其電性檢測，也就是量測其電容值是否 正確的檢驗作業。 舉例而言’當檢測電容的電容值是否正確時，主要係透過一 測試電路提供m定的電壓源’以充電躺電容。接著，在待測電 容完成充電讀’再對待測電容進行放電_作。f知的檢測方 法係藉由擷取制電容的放料線，並且針_放電曲線中的線 性區段進行數據採樣’細微分算絲算得顺測電容的電容值。 然而…般電容的放電曲線，多為二項或二項以上之多項式 的抛物曲線。就實際層面而言，習知的檢測方法，必卿外佐以 =嫩的計紹1鳩㈣懦_觀樣的線性 在此情況之下，習知的檢測方法，不僅增加了計算過程中 的復雜_mplexity)，更無形輯來了將 因此，較難得到準確之數據。 决差 201226931 其-人，為了得到精確之電容值，習知的檢測方法對於放電曲 線的精度要求亦相雜高。在此情況之下，狀提供充電電力的 私壓源，其輸出電力的穩定性(reliability)即顯得格外重要。換言 之，充電電壓源必須要能夠提供穩定的電力來源，並且具有穩定 的輸出特性’以有效避免放電曲線中突波(spikes)、譜波細麵㈣ 以及雜訊(nGises)料生的鮮，於此，f知的制方法在無形中 亦造成測試成本的上升。 是以，綜上所述，如何解決習知檢測方法所產生的問題，並 且提供-種具有較低誤差、高準確度並且操作㈣的測量電容值 勺方去只為相關技術領域者目前迫切需要解決的問題。 【發明内容】 …馨於以上’本發明在於提供—種適於量測電容器的電容值之 測置方法與_^路，以解決習知存在的問題。 本U係有關於—種電容器測量方法，適於量測—電容器的 2值。Λ㈣料婦方法包括以下步驟：輸人-電源於該電 雷脉之賴值達到—第—預定電壓值時，停止輸入 容器；電性連接該電容器至—放電電阻，並且記錄一 ^始_點；當該電容器之雙值下降至—第二預定電壓值 止時時間點；以及根據放電啟始時間點、放電戴 ；； 電阻的電阻值，計算該電容器的電容值。 值為!的物耐法’㈣―預定電壓 第—預疋電壓值可為0.37 E〇。 201226931 根據本㈣-實酬的電容_量方法，射放電電阻的電 阻值為R，放電啟始時間點與放電截止時間點之間形成時間間隔 △t ’該電容器之電容值係為△〖瓜。 本發明另錢於—㈣容11戦電路，適於制-電容器的 電容值。此種電容_試電路包括：„鶴供應模塊、—放電電 阻、-開鮮元以及-檢測記賴組。射，電源供應模塊用以 提供-電源，開關單it可選擇性地電性連接該電容器至放電電阻 或電源供賴塊，檢測記__咕_電容⑽—麵值。 當該電壓值達到—第—預定電壓值時，檢測記錄模組控制開關單 ^電性連接該電容器至放電電阻，並跋錄—放電啟 電截止時糊組記錄一放 時門點及放詩 據放電啟始時間點、放電截止 獨點及放電電_餘值，計算該電容H的電容值。 ^，本發雜_電⑬啦枝與試電路 先糟由電源供應模塊提供充電 ’、 ^ 谷态的電源。爾後，檢測 對=拉續待測咖在放電過程中 盆 ==過的時間。根據該些數據與放電電阻的電_，二= 錄輪組即可計算出待測電容器的電容值。 仏礼己201226931 VI. Description of the Invention: [Technical Field] The present invention relates to a capacitor measuring method and a capacitor testing circuit, and more particularly to a measuring method for detecting a capacitance value of a capacitor and a test circuit thereof. [Prior Art] - Generally speaking, the actual money of the circuit towel can not exceed its resistance. Therefore, different types of capacitors should be used for different circuits. For example, ancient, resonant, transformer and other circuit loops can use high-frequency capacitors such as mica and ceramics; and the filter circuit can use electrolytic bypass capacitors. Before all kinds of capacitors are shipped from the factory and electrically connected to the actual circuit, they must be electrically tested, that is, the inspection operation to measure whether the capacitance value is correct. For example, when the capacitance value of the detecting capacitor is correct, the voltage source is fixed by a test circuit to charge the lying capacitor. Then, the charge to be tested is completed and the capacitor to be measured is discharged. The known detection method is to calculate the capacitance value of the capacitance by counting the discharge line of the capacitor and the linear section of the needle-discharge curve for data sampling. However, the discharge curve of a capacitor is mostly a parabolic curve of a polynomial of two or more. On the practical level, the conventional detection method, Bianqing, and the tenderness of the 1st (four) 懦 _ observation linearity in this case, the conventional detection method not only increases the calculation process Complex _mplexity), more invisible, will make it harder to get accurate data. The difference is 201226931. In order to obtain accurate capacitance values, the conventional detection method has high requirements for the accuracy of the discharge curve. Under this circumstance, it is particularly important to provide a private source of charging power with the reliability of the output power. In other words, the charging voltage source must be able to provide a stable source of power, and has a stable output characteristics to effectively avoid spikes in the discharge curve, fine-grained waves (4), and noise (nGises). Therefore, the method of knowing the method also causes an increase in the test cost. Therefore, in summary, how to solve the problems caused by the conventional detection method, and provide a measurement error value with a lower error, high accuracy and operation (4) is only urgently needed for the relevant technical field. solved problem. SUMMARY OF THE INVENTION The present invention provides a method and method for measuring the capacitance value of a capacitor to solve the conventional problems. This U system has a method for measuring the capacitance of a capacitor, which is suitable for measuring - the value of the capacitor. Λ (4) The method of preparing a woman includes the following steps: the input-power source stops the input of the container when the value of the electric lightning pulse reaches the first-predetermined voltage value; electrically connects the capacitor to the discharge resistance, and records a start_point When the double value of the capacitor drops to a time point when the second predetermined voltage value is stopped; and the capacitance value of the capacitor is calculated according to the resistance start value of the discharge start time point; The value of the resistance of the object is '(4) - the predetermined voltage - the pre-turn voltage value can be 0.37 E 〇. 201226931 According to the (4)-revenue capacitance_quantity method, the resistance value of the discharge resistor is R, and a time interval Δt is formed between the discharge start time point and the discharge cut-off time point. The capacitance value of the capacitor is △ . The invention is additionally capable of - (4) capacitance 11 戦 circuit, suitable for the capacitance value of the capacitor. The capacitor_test circuit includes: a crane supply module, a discharge resistor, a fresh element, and a detection group. The power supply module is used to provide a power source, and the switch unit is selectively electrically connected. Capacitor to discharge resistor or power supply block, detection __咕_capacitor (10) - face value. When the voltage value reaches - the first predetermined voltage value, the detection recording module control switch is electrically connected to the capacitor to discharge Resistor, and recording - when the discharge is turned off, the paste group records the discharge point and the discharge start time point, the discharge cut-off point and the discharge power_ residual value, and calculates the capacitance value of the capacitor H. ^, The hair is mixed with the test circuit, and the power supply module provides the power supply for charging ', ^ valley state. Then, the detection pair = the time for the coffee to be tested during the discharge process == over time. The data and the discharge resistance of the electric _, two = record wheel set can calculate the capacitance value of the capacitor to be tested.
本發明提出的電容器測I 了習知檢測方法對充電電源1器測試電路，不僅省卻 較高，且便於實施之功效。月又 制，同時亦達到準確率 以上有關於本她_觸，細下的實施_用以示 201226931 範與解釋本發_精神與顧，胤提供本發_專射請範圍 更進V的轉有關本發g㈣特徵、實作與功效，姐合圖式 作較佳貫施例詳細說明如下。 【實施方式】 以下在實施料巾詳細敘述本㈣之詳細·^及優點，並 内容足以使任何技藝者了解本發明之技_容並據以實 施，且根據本說明書所揭露之内容、中請專利範圍及圖式，任何 熟習相關技藝者可㈣紐解本發_關之目的及優點。 「第1圖」係為根據本發明實施例之電容器測量方法的步驟 流程圖’此種測量方法可適驗「第2圖」的測試，以測量 該測試電財電容器的電容值。射，值槪意的是，本發明提 $的測量方法’並不以量測「第2圖」所示之測試中的電容 為為限。町藝二者之配合說明，僅作為解釋本發明之技術内 容示範之用。任何熟習此項技藝之人士，當可根據本發明之發明 以 ^容，自行應驗量測其他峨電路巾制電容器的電容值 實現本發明相關之目的及優點。 根據本發明之實施例，如「第2圖」所示，測試電路雇包 括電源供麵塊丨G、放電餘12、„單元14⑽檢測記錄模 組16 ’其中電源供應模塊10用以提供一電源％，開關單元μ ，接於電源供應模塊H)、放電输12以及電締18之間。開關 早7L 14並可選擇性地切換於接點A與接點B之間，以電性連接 電容器18至電源供應馳10或放電電阻12。檢測記錄模組Μ 201226931 並聯於電容器18，以記錄電容器18之電壓值Uc。根據本發明之 實施例’測試電路1〇〇可用以量測電容器18之電容值，其測量方 法’請一併參閱「第1圖」之步驟流程圖，茲說明如下。 首先’如「第3A圖」所示，開關單元14連接接點a，以電 性連接電料18至麵供賴塊10，使得電源Vin找於電容器 以(對應步驟S100)。接著，檢測記錄模組16判斷電容器18之電 魘值!^疋否達到一第—預定電壓值E〇(對應步驟Si〇2)，其中第一 預定電壓值E〇可以是但不限於12伏特(v)。當電容器18之電壓 值17。達到帛—縱賴值E。時，電雜賴塊1G停止輸入電源 m於電令益18 ’並且如「第3B圖」所示，開關單元^轉而連接 接』B ’以將電容11 18電性連接至放電電阻12，於此，檢測記錄 模組I6鱗-放電啟始時間點τ。(對應步驟顯與)。 在此情況之下，放魏阻12與電容器18戦—放電迴路。 則根據以下公式：The capacitor proposed by the present invention has a conventional detection method for the charging power supply 1 test circuit, which not only saves a high efficiency, but also facilitates the implementation. The system is also made up of the monthly rate, and it also achieves the accuracy rate. It is about the implementation of her _ touch, the fine implementation _ used to show 201226931 Fan and explain this hair _ spirit and Gu, 胤 provide this hair _ special shot please range into V Regarding the characteristics, implementation and efficacy of the present g(4), the best example of the Shouhe pattern is as follows. [Embodiment] Hereinafter, the details and advantages of the present invention will be described in detail in the implementation of the towel, and the content is sufficient for any skilled person to understand the technology of the present invention and implement it according to the contents of the present specification. The scope and schema of the patent, anyone familiar with the relevant art can (4) to solve the purpose and advantages of the hair. The "Fig. 1" is a flow chart of a capacitor measuring method according to an embodiment of the present invention. This measuring method can be adapted to the test of "Fig. 2" to measure the capacitance value of the test electric energy capacitor. The value of the measurement method of the present invention is not limited to the measurement of the capacitance in the test shown in "Fig. 2". The description of the cooperation between the two is only for the purpose of explaining the technical content of the present invention. Any person skilled in the art can achieve the objects and advantages of the present invention by measuring the capacitance of other tantalum circuit capacitors in accordance with the invention of the present invention. According to an embodiment of the present invention, as shown in "Fig. 2", the test circuit employs a power supply for the surface block 丨G, a discharge remaining 12, a unit 14 (10) detection recording module 16', wherein the power supply module 10 is used to provide a power supply. %, the switch unit μ is connected between the power supply module H), the discharge output 12 and the electric junction 18. The switch is 7L 14 early and can be selectively switched between the contact A and the contact B to electrically connect the capacitor 18 to the power supply 10 or the discharge resistor 12. The detection recording module Μ 201226931 is connected in parallel to the capacitor 18 to record the voltage value Uc of the capacitor 18. According to an embodiment of the invention, the test circuit 1 can be used to measure the capacitor 18 Capacitance value, its measurement method 'Please refer to the flowchart of the step of Figure 1 together, as explained below. First, as shown in Fig. 3A, the switch unit 14 is connected to the contact point a to electrically connect the electric material 18 to the surface supply block 10, so that the power source Vin is found in the capacitor (corresponding to step S100). Next, the detection recording module 16 determines whether the electrical threshold value of the capacitor 18 has reached a first predetermined voltage value E〇 (corresponding to step Si〇2), wherein the first predetermined voltage value E〇 can be, but is not limited to, 12 volts. (v). When capacitor 18 has a voltage value of 17. Reach the 帛-valued value E. When the power supply block 1G stops inputting the power supply m to the power supply 18' and as shown in the "3B", the switch unit is connected to the connection "B" to electrically connect the capacitor 11 18 to the discharge resistor 12, Here, the scale-discharge start time point τ of the recording module I6 is detected. (corresponding to the step is shown). In this case, the Wei resistance 12 and the capacitor 18 戦-discharge loop are placed. Then according to the following formula:
Uc+iR = 〇 ； '、為放電電阻12的電阻值，4流經放電電阻I2之電流; β及 氣 雷Μ払/ 〃中C為電谷11 18的電容值，dt(或稱△)為距離放 電啟始時間點T。後之時間間隔。 、田At G(即對應放電啟始時間點丁。)時， 认為第—歡似。，由此可解得： 電容器18之電壓值 旱 xexP(g);以及 201226931 當 At =RC 時，％ = £。xe-1 = 〇.37£。 因此，如步驟S108所示，檢測記錄模組ι6判斷電容器18之 _ 電壓值Uc是否下降至一第二預定電麗值，其中第二預定電壓值即 可設定為0.37EQ。於此，當電容器18之電壓值仏下降至〇 37e〇 時，檢測記錄模組16即記錄一放電截止時間點乃(對應步驟 SU0)。是以，根據At =RC，為放電截止時間點乃與放電啟始 寺間點T〇之間的時間間隔，檢測記錄模組^ 6即可計算出電容哭 • 18的電容值C=Z\t/R(對應步驟S112)。 其次，根據本發明提出之電容器測試方法，第二預定電壓值 與第-預定電壓值E。的比例可以是但不限於G 37倍。詳細而言， 根據Wxexp(差〕，其中A亦可選自〇.就或观，令_删 E〇或0.1369 E0。藉由設定第二預定電壓值為第一預定電壓值巧 勺心或0.1369倍，記錄放電截止時間點放電啟始時間 點T0之間的時間間隔〜，再根據△隨观或就，即可計算得 馨到電容器18的電容值c。 ^二、’ “上所述’本發明提出之電容器測量方法，與其應用 ^電谷錢路，只需檢測待測電容器之電驗自第一預定電 ^值下嶋：_齡_娜刚，嫩電電阻的 電阻值’即可計算出_電容器之電容值。 電二的電容器測量方法與電容器測試電路，檢測 電合态之電谷值時，不僅可古卜 需記錄電容器蝴過財^去f知她雨程序，更無 、母具體電壓值，藉此提供一低誤 201226931 差、準财高域作直賴單转㈣容職方法。 〜雖然本發_前述陳讀施纖露如上，然其並非用以限 定本發明，任何熟習娜鄕者，在视離本㈣之精神與範圍 2田可作些序更動與潤鋅，因此本發明之專利保護範圍須視本 祝明書所附之+請專補_界定者為準。 【圖式簡單說明】 圖。弟1圖係為根據本發明實施例之電容器測量方法的步驟流程 第2圖係為根據本發明實施例之測試電路的電路方塊圖。 路方ί Γ。_料根據「第2圖」之_路充1於餘器時的電 第3Β圖係為根據「第2圖」 路方塊圖。 【主要元件符號說明】 10 電源供應模塊 12 玫電電阻 14 開關單元 16 檢測記錄模組 18 電容器 1〇〇 測試電路 之測試電路放電於電容器時的電Uc+iR = 〇; ', is the resistance value of the discharge resistor 12, 4 is the current flowing through the discharge resistor I2; β and the gas thunder / 〃 C is the capacitance value of the electric valley 11 18, dt (or △) It is the time T from the start of the discharge. After the time interval. At the time of the At G (that is, corresponding to the start of the discharge time), it is considered to be the first. Thus, it can be solved: the voltage value of the capacitor 18 is dry xexP(g); and 201226931 When At = RC, % = £. Xe-1 = 〇.37£. Therefore, as shown in step S108, the detection recording module ι6 determines whether the voltage value Uc of the capacitor 18 has dropped to a second predetermined voltage value, wherein the second predetermined voltage value can be set to 0.37EQ. Here, when the voltage value 电容器 of the capacitor 18 drops to 〇 37e , the detection recording module 16 records a discharge cut-off time point (corresponding to step SU0). Therefore, according to At = RC, the time interval between the discharge cut-off time point and the point T〇 between the discharge start temples, the detection recording module ^ 6 can calculate the capacitance value of the capacitor crying 18 = C\Z\ t/R (corresponding to step S112). Next, a capacitor test method according to the present invention, a second predetermined voltage value and a first predetermined voltage value E. The ratio can be, but is not limited to, G 37 times. In detail, according to Wxexp (difference), where A may also be selected from 〇. or ,, _ 〇 E〇 or 0.1369 E0. By setting the second predetermined voltage value to the first predetermined voltage value or 0.1369 Times, the time interval between the discharge start time points T0 at the discharge cut-off time point is recorded, and then the capacitance value c of the capacitor 18 can be calculated according to the Δ approximation or. ^2, '" The capacitor measuring method proposed by the invention, and the application thereof ^ electric valley road, only need to detect the electrical test of the capacitor to be tested from the first predetermined electrical value 嶋: _ age _ Na Gang, the resistance value of the tender electric resistance can be calculated The capacitance value of the capacitor is discharged. The capacitor measurement method of the electric two and the capacitor test circuit, when detecting the electric valley value of the electrical state, not only can the Gubu need to record the capacitors, but also the rain program, no more, the mother The specific voltage value, thereby providing a low error 201226931 poor, quasi-fiscal high field for the single turn (four) employment method. ~ Although the present invention - the above-mentioned readings are as above, but it is not intended to limit the invention, any Familiar with the singer, in the spirit and scope of the vision (4) 2 The scope of patent protection of the present invention is subject to the + appended stipulations attached to the present specification. [Simplified description of the drawings] Fig. 1 is a diagram according to the present invention. Step Flow of Capacitor Measurement Method Example 2 is a circuit block diagram of a test circuit according to an embodiment of the present invention. The way is based on the "second picture" The third diagram is based on the "Figure 2" road block diagram. [Main component symbol description] 10 Power supply module 12 Rose resistance 14 Switch unit 16 Detection recording module 18 Capacitor 1〇〇 Test circuit Test circuit discharge to capacitor Electricity