201022878 六、發明說明： 【發明所屬之技術領域】 本發月疋有關於帛電流源電路’特別是指一種可以 提供定電流輸出的定電流源電路。 【先前技術】 隨著科技的進步’人們對於行動電話（Mobile Phone)、 舰及筆記型電腦(Noteb〇〇k)等行動式％產品的需求也越 來越多，而這些產品皆需要儲能元件來當作其系統的供電 來源，就目前而言，應用上大都是利用電池、電容或超級 電容（Super capacitor)作為能量儲存的元件。 電容雖然在製程上較為簡單，但因其儲存容量小，只 能當做短暫儲能使用。而傳統電池，主要是利用化學能的 方式來進行能量儲存，因此其能㈣存密度明顯優於一般 電容，而可應用於各種電力供應裝置，但是，缺點是其 所能產生之瞬間電力輸出會受限於化學反應速率，而盈法 快速的充放電或進行高功率輸出，且充放電次數有限了 度充放時易滋生各種問題；例如：目前所使用 雖然標榜著可重複制，但還是有其壽命之限制。在多 次充放電或長時間不使用的情況下，蓄電池的容 ’且容易損壞，原因在於蓄電池是利用化學能轉換為二： ，化學物質要常保其活性，才不至於失效變質， b 化合物活性都作用完或將近用完時，便I法原來的 學反應，進而導致蓄電池老化而宣告壽終行新的化 超級電容是一種介於電池與電容間的元件， 又稱雙電 4 201022878 層電容（Electrical Double-Layer Capach〇r)，因同時透過部分 物理儲能 '部分化學儲能架構，故其具有比普通電容更大的 容量，但其缺點是··因有化學材料而具化學特性，而易有 如電池的漏電缺點，又加上因還有部份是物理特性之放電 速度快的現象，如此一來就產生很快就會沒電的現象無 法達到有效蓄電功能。甚至，超級電容的耐壓度不高内 阻較大’因而不可㈣於交流電路，且如果使用不當會造 成電解質泄漏等現象。 此外在現今行動式3C產品中，大都是使用半導趙電 流鏡的方式，並以上述儲能元件當作供應電源，來實現一 個可提供固定電流的電流源。 【發明内容】 本案則是利用-個具有壽命長（高充放電次數）、高能量 儲存密度、瞬間高功率的輸出、快速充放電等優點的儲能 元件，並透過一個電阻電路，其電阻值隨該儲能元件的放 電電壓遞減而遞減，以完成的另一種可產生固定電流 流源。 因此’本發明之㈣’即在提供—種可以提供—定電 流輸出的定電流源電路。 於是，本發明定電流源電路用以供電一負載並包含 一磁性電容及一電阻電路。其中，磁性電容用於輸出—電 壓至㈣磁性電容與負載之間的電阻電路，而電阻電路的 電阻值會和磁性電容所輸出的電壓與負載之間的跨電壓的 電壓差成正比，且電阻電路的電阻值會隨磁性電容輪出的 201022878 電壓值遞減而遞減，以穩定定電流源電路輸出的電流值。 本發明之磁性電容是一種新穎的儲能元件，且較習知 的電池、電容、超級電容具有許多優點，其用於輸出一電 力並具有一第一磁性電極、一第二磁性電極以及位於其間 之一介電層，第一磁性電極與第二磁性電極係由具磁性的 導電材料構成，且第一磁性電極的磁耦極方向相同，而第 二磁性電極的磁耦極方向相同，但第二磁性電極可與第一 磁性電極的磁耦極方向相反。再者，第一磁性電極與第一 磁性電極中的至少一者具有一第一磁性層、一第二磁性層 與一夾置於第一磁性層與第二磁性層間且非磁性材質的隔 離層。 較佳地，本發明之第一磁性電極與第二磁性電極的材 質為稀土元素，而介電層的材質為氧化鈦或氧化鋇鈦或一 半導體材質。 較佳地，本發明之電阻電路具有一電壓頻率轉換器及 一切換電容電路。其中電壓頻率轉換器可為一壓控振盡器 ’且耦接於磁性電容並輸出一脈波訊號，而該脈波訊號的 頻率值隨磁性電容所輸出的電壓值遞增而遞減。 此外，切換電容電路具有一電容及一耦接電壓頻率轉 換器與電容的切換器，切換器會根據電壓頻率轉換器所發 出的脈波訊號使電容交替地耦接於磁性電容與負載其中之 一。本發明之功效在於，可以提供一個穩定且固定的定電 流。 【實施方式】 201022878 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一個較佳實施例的詳細說明中，將可 清楚的呈現。 參閱圖1，為本發明定電流源電路之較佳實施例，該定 電流源電路1用以提供一定電流j給一負載2，並包含一磁 性電谷3及一電阻電路4，其中，磁性電容3用於輸出一電 壓P至耦接磁性電容3與負載2之間的電阻電路4，而電阻 電路4的電阻值&會和磁性電容3所輸出的電壓F與負載2 之間的跨電壓匕的電壓差成正比，且電阻電路4的電阻值及 會隨電壓F的電壓值的遞減而遞減，以穩定定電流源電路1 輸出的電流值I。值得一提的是，在本實施例中，負載2為 一個具有固定跨電壓匕的發光二極體（LED)，故磁性電容3 所輸出的電壓r將會決定電阻電路4的電阻值心如何變化。 因為本發明中的磁性電容3是一種新穎的儲能元件， 且較習知的電池、電容、超級電容具有許多優點，因此以 下先對磁性電容3作一介紹，之後再詳述電阻電路4的内 部元件關係，以及其電阻值&如何隨著磁性電容3所輸出 的電壓r變化，以致於定電流源電路丨可輸出定電流 請參考圖2，圖2為本實施例之磁性電容與其他習知能 量儲存媒介之比較示意圖。如圖2所示，由於習知能量儲 存媒介（例如傳統電池或超級電容）主要是利用化學能的方式 來進行能量儲存，因此其能量儲存密度將會明顯優於一般 電容，而可應用於各種電力供應裝置，但在此同時，其所 能產生之瞬間電力輸出亦會受限於化學反應速率，而無法 201022878 快速的充放電或進行高功率㈣，且充放電次數有限，過 度充放時易滋生各種問題。 相較於此，由於磁性電容3中儲存的能量全部係以電 位能的方式進行儲存，因此，除了具有可與—般電池或超 級電容匹配的能量儲存密度外，㈣充分保有電容的特性 ’而具有壽命長（高充放電次數）、無記憶效應、可進行高功 率輸出、快速充放電等特點，故可有效解決當前電池所遇 到的各種問題。 請參考圖3 ’圖3為本發明之磁性電容3的結構示意圖 。如圖3所示，磁性電容3係包含有_第—磁性電極削、 一第二磁性電極12G，以及位於其間之-介電層13〇。其中 第磁電極11〇與第二磁性電極12〇係由具磁性的導電材 料所構成’並藉由適當的外加電場進行磁化使第一磁性 與第一磁性電極12〇内分別形成磁偶極（邮卿他 diP〇le)U5與125,以於磁性電容3内部構成-磁場，對帶 電粒子的移動造成影響，從而抑制磁性電容3之漏電流。 所需要特別強調的是，圖3中的磁偶極115與125的箭 頭方向僅為—示意圖。對熟習該項技藝者而言，應可瞭解 到磁偶極115與125實際上係由多個整齊排列的微小磁偶極 所疊加而成，且在本發明φ 不發月中磁偶極115與125最後形成的 向並無限定’例如可指向同-方向或不同方向。介電層 130則係用來分隔第-磁性電極⑽與第二磁性電極120, =第-磁性電極⑽與第二磁性電極⑽處累積電荷儲 存電位能。在本發明之—眘 實施例中，第一磁性電極11 〇與第 201022878 - 二磁性電極120係包含有磁性導電材質，例如稀土元素， 介電層130係由氧化鈦（Ti〇3)、氧化鋇鈦（BaTi〇3)或一半導 體層，例如氧化矽（siliC0n oxide)所構成，然而本發明並不 限於此，第一磁性電極110、第二磁性電極12〇與介電層 130均可視產品之需求而選用適當之其他材料。 比喻說明本發明磁性電容之操作原理如下。物質在一 定磁場下電阻改變的現象，稱為「磁阻效應」，磁性金屬和 合金材料一般都有這種磁電阻現象，通常情況下，物質的 電阻率在磁場中僅產生輕微的減小；在某種條件下，電阻 率減小的幅度相當大，比通常磁性金屬與合金材料的磁電 阻值高出10倍以上，而能夠產生很龐大的磁阻效應。若是 進—步結合Maxwell-Wagner電路模型，磁性顆粒複合介質 中也可能會產生很龐大的磁電容效應。 在習知電容中，電容值C係由電容之面積A、介電層 之介電常數及厚度d決定，如下式。然而在本發明中， % 磁性電容3主要利用第一磁性電極u〇與第二磁性電極 中整齊排列的磁偶極來形成磁場來，使内部儲存的電子朝 同—自旋方向轉動，進行整齊的排列，故可在同樣條件下 ’容納更多的電荷，it而增加能量的儲存密度。類比於習 知電容，磁性電容3之運作原理相當於藉由磁場之作用來 改變介電層130之介電常數，故而造成電容值之大幅提升 C = ~~~1Γ 201022878 此外，在本實施例中，第一磁性電極11〇與介電層】3〇 之間的介面131以及第二磁性電極12〇與介電層i3〇之間 的介面132均為-不平坦的表面，以藉由增加表面積a的 方式，進一步提升磁性電容3之電容值c。 € 請參考圖4’圖4為本發明之磁性電容的第—磁性電極 no另-種之結構示意圖。如圖4所示，第一磁性電極 係為一多層結構，包含有一第一磁性層112、一隔離層ιΐ4 以及-第二磁性層116。其中隔離層114係由非磁性的導電 材料所構成’例如銅’而第一磁性層112與第二磁性層ιΐ6 則包含有具磁性的導電材料，並在磁化時，藉由適當的外 加磁場，使得第-磁性層112與第二磁性層114中的磁偶極 113與117分別具有不同的方向’例如在本發明之較佳實施 例令，磁偶極U3與117的方向係為反向，而“—步㈣ 磁性電容3之漏電流。此外，需要強調的是磁性電極則 之結構並不限於前述之三層結構，而可以類似之方式，以 2個磁性層與非磁性導電層不斷交錯堆叠，再藉由各磁 性層内磁偶極方向的調整來進一步抑制磁性電容3之漏電 流，甚至達到幾乎無漏電流的效果。 ^外’由於習知儲能元件多半以化學能的方式進行儲 此都需要有—定的尺寸’否則往往會造成效率的大 式：降：二較於此’本發明之磁性電容3係以電位能的方 "仃且因所使用之材料可適用於半導體製程故 2由適當的半導體製程來形成磁性電容3以及周邊電路 ，進而縮小磁性電容3之體積與重量，由於此製作方 10 201022878 . &可使用—般半導體製程，其應為熟習該項技藝者所熟知 ，故在此不予贅述。 4參考@ 5圖5為本發明之磁性電容的另—示意圖。 承前所述，在本實施例中，係利用半導體製程於一矽基板 上製作複數個小尺寸的磁性電容3，，並藉由適當的金屬化 製程，於該複數個小尺寸的磁性電容3，間形成電連接，從 而構成一個包含有多個小尺寸的磁性電容3，的磁性電容組3 ，再以磁性電容組3作為能量儲存裝置或外部裝置的電力 ^ 供應來源。在本實施例中，磁性電容組3内的複數個小尺 寸的磁性電容3,係以類似陣列的方式電連接，然而本發明 並不限於此，而可根據不同的電壓或電容值需求，進行適 當的串聯或並聯，以滿足各種不同裝置的電力供應需求。 回歸參閲圖1，本實施例之電阻電路4包括一電壓頻率 轉換器41及一切換電容電路42，其中，電壓頻率轉換器 41 可為一麼控振盈器（Voltage Control Oscillator，VCO)，配 ^ 合參閱圖6,圖6為電壓頻率轉換器4i之輸入電壓與輸出 訊號頻率的關係圖，其中，電壓頻率轉換器41輸出訊號的 頻率會隨著其輸入的電壓增加而降低。此外，電壓頻率轉 換器41會耦接於磁性電容3並偵測磁性電容3所輸出的電 壓厂，且將其電壓Γ對應轉換成一個脈波訊號輸出至切換電 容電路42。就一般而言，磁性電容3的電壓厂會隨著使用時 間漸漸衰減，換言之’電壓頻率轉換器41所輸出的脈波訊 號之頻率將會越來越快。 再者，切換電容電路42會具有一電容43及一耦接電 11 201022878 壓頻率轉換器41與電容43的切換器44,其中，切換器44 會受電壓頻率轉換器41所輸出的脈波訊號控制，使電容43 交替地與磁性電容3或負載2相耦接。當電容43耦接於磁 性電容3時，電容43為充電狀態，於是磁性電容3所輪出 的電壓F會對電容43充電，使其累積的電荷量為01 =以，其 中C為電容43之容值。而當切換器44切換電容43與負載 2相連接時，電容43為放電狀態，因此電容43所累積的電 荷量降為込=C&，故在脈波訊號的一週期内的平均電流為 r _a-g2_c(r-Ff) rp rp 因此’切換電容電路42透過切換器44的切換，可等效出 的電阻值&為 R ^~VL_T_ 1201022878 VI. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a 帛 current source circuit ’, particularly to a constant current source circuit that can provide a constant current output. [Prior Art] With the advancement of technology, people are increasingly demanding mobile % products such as mobile phones, ships and notebooks (Noteb〇〇k), and these products require energy storage. Components are used as a source of power for their systems. For the time being, most applications use batteries, capacitors, or super capacitors as energy storage components. Although the capacitor is relatively simple in the process, it can only be used as a short-term storage because of its small storage capacity. The traditional battery, mainly using chemical energy for energy storage, so it can (4) storage density is significantly better than the general capacitance, but can be applied to a variety of power supply devices, but the disadvantage is that it can produce instantaneous power output will Limited by the chemical reaction rate, and the fast charge and discharge or high power output of the method, and the number of charge and discharge times is limited, and it is easy to breed various problems; for example, although it is currently used for re-copying, it still has Its life limit. In the case of multiple charging and discharging or not used for a long time, the battery capacity is easy to damage, because the battery is converted into two by chemical energy: the chemical substance should always maintain its activity, so as not to deteriorate, b compound activity When they are all used or nearly used up, the original learning reaction of I method leads to the aging of the battery and declares that the new super capacitor is a component between the battery and the capacitor. It is also called double power 4 201022878 layer capacitor (Electrical Double-Layer Capach〇r), because it partially transmits part of the physical energy storage structure, it has a larger capacity than ordinary capacitors, but its disadvantage is that it has chemical properties due to chemical materials. It is easy to have the shortcomings of leakage of the battery, and because of the fact that some of the physical characteristics of the discharge speed is fast, so that the phenomenon that there will be no electricity soon will not reach the effective storage function. Even the supercapacitor has a high withstand voltage and a high internal resistance, so it cannot be used in an AC circuit, and if it is used improperly, it may cause electrolyte leakage. In addition, in today's mobile 3C products, most of them use a semi-conducting current mirror and use the above-mentioned energy storage components as a power supply to realize a current source that can provide a fixed current. SUMMARY OF THE INVENTION In this case, an energy storage component having the advantages of long life (high charge and discharge times), high energy storage density, instantaneous high power output, fast charge and discharge, and the like is adopted, and the resistance value is transmitted through a resistor circuit. Another type of fixed current source can be generated as the discharge voltage of the energy storage element is decremented to decrease. Therefore, the "fourth aspect" of the present invention provides a constant current source circuit which can provide a constant current output. Therefore, the constant current source circuit of the present invention is used to supply a load and includes a magnetic capacitor and a resistor circuit. Wherein, the magnetic capacitor is used for outputting a voltage-to-voltage circuit between the (four) magnetic capacitor and the load, and the resistance value of the resistance circuit is proportional to the voltage difference between the voltage outputted by the magnetic capacitor and the load, and the resistance The resistance value of the circuit is decremented as the voltage of the 201022878 wheel of the magnetic capacitor decreases, to stabilize the current value output by the current source circuit. The magnetic capacitor of the present invention is a novel energy storage component, and has many advantages over conventional batteries, capacitors, and supercapacitors for outputting a power and having a first magnetic electrode, a second magnetic electrode, and therebetween. a dielectric layer, the first magnetic electrode and the second magnetic electrode are made of a magnetic conductive material, and the first magnetic electrode has the same magnetic coupling direction, and the second magnetic electrode has the same magnetic coupling direction, but The two magnetic electrodes may be opposite to the magnetic coupling of the first magnetic electrode. Furthermore, at least one of the first magnetic electrode and the first magnetic electrode has a first magnetic layer, a second magnetic layer and a non-magnetic material isolation layer sandwiched between the first magnetic layer and the second magnetic layer. . Preferably, the material of the first magnetic electrode and the second magnetic electrode of the present invention is a rare earth element, and the material of the dielectric layer is titanium oxide or titanium ruthenium oxide or a semiconductor material. Preferably, the resistor circuit of the present invention has a voltage to frequency converter and a switched capacitor circuit. The voltage-to-frequency converter can be a voltage-controlled oscillating device ′ and coupled to the magnetic capacitor and output a pulse signal, and the frequency value of the pulse signal decreases as the voltage value output by the magnetic capacitor increases. In addition, the switched capacitor circuit has a capacitor and a switch coupled between the voltage frequency converter and the capacitor, and the switch alternately couples the capacitor to one of the magnetic capacitor and the load according to the pulse signal generated by the voltage-frequency converter. . The effect of the present invention is that a stable and fixed constant current can be provided. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments. 1 is a preferred embodiment of a constant current source circuit according to the present invention. The constant current source circuit 1 is configured to supply a current J to a load 2, and includes a magnetic electric valley 3 and a resistance circuit 4, wherein the magnetic The capacitor 3 is used to output a voltage P to the resistor circuit 4 coupled between the magnetic capacitor 3 and the load 2, and the resistance value of the resistor circuit 4 and the voltage between the voltage F and the load 2 output by the magnetic capacitor 3 The voltage difference of the voltage 匕 is proportional, and the resistance value of the resistance circuit 4 decreases with decreasing voltage value of the voltage F to stabilize the current value I output by the constant current source circuit 1. It is worth mentioning that, in this embodiment, the load 2 is a light-emitting diode (LED) having a fixed voltage across the voltage, so the voltage r output by the magnetic capacitor 3 will determine the resistance value of the resistor circuit 4. Variety. Because the magnetic capacitor 3 in the present invention is a novel energy storage component, and the conventional battery, capacitor, and super capacitor have many advantages, the magnetic capacitor 3 will be described below, and then the resistor circuit 4 will be described in detail. The internal component relationship, and how its resistance value &lifier changes with the voltage r output by the magnetic capacitor 3, so that the constant current source circuit can output a constant current, please refer to FIG. 2, FIG. 2 is the magnetic capacitor and other embodiments of the present embodiment. A schematic diagram of a comparison of conventional energy storage media. As shown in FIG. 2, since conventional energy storage media (such as conventional batteries or supercapacitors) mainly use chemical energy for energy storage, their energy storage density will be significantly better than general capacitance, and can be applied to various Power supply device, but at the same time, the instantaneous power output that can be generated is limited by the chemical reaction rate, and it is not possible to quickly charge and discharge or high power (4) in 201022878, and the number of charging and discharging is limited, and it is easy to overcharge and discharge. Breeding various problems. In contrast, since all the energy stored in the magnetic capacitor 3 is stored in the form of potential energy, in addition to having an energy storage density that can be matched with a general battery or a super capacitor, (4) sufficiently retaining the characteristics of the capacitor' It has long life (high charge and discharge times), no memory effect, high power output, fast charge and discharge, etc., so it can effectively solve various problems encountered in current batteries. Please refer to FIG. 3'. FIG. 3 is a schematic structural view of a magnetic capacitor 3 according to the present invention. As shown in FIG. 3, the magnetic capacitor 3 includes a _first magnetic electrode, a second magnetic electrode 12G, and a dielectric layer 13 位于 therebetween. The first magnetic electrode 11〇 and the second magnetic electrode 12 are made of a magnetic conductive material and magnetized by a suitable applied electric field to form a magnetic dipole in the first magnetic body and the first magnetic electrode 12 respectively. The postal secretary, he is di5〇) U5 and 125, so that the magnetic capacitor 3 internally constitutes a magnetic field, which affects the movement of the charged particles, thereby suppressing the leakage current of the magnetic capacitor 3. It is particularly emphasized that the arrow directions of the magnetic dipoles 115 and 125 in Fig. 3 are only a schematic view. For those skilled in the art, it should be understood that the magnetic dipoles 115 and 125 are actually superposed by a plurality of neatly arranged micro magnetic dipoles, and in the present invention, the magnetic dipole 115 is not in the moon. There is no limit to the direction that 125 is finally formed, for example, it can point to the same direction or different directions. The dielectric layer 130 is used to separate the first magnetic electrode (10) from the second magnetic electrode 120, and the charge storage potential energy is accumulated at the first magnetic electrode (10) and the second magnetic electrode (10). In a preferred embodiment of the present invention, the first magnetic electrode 11 〇 and the 201022878 - two magnetic electrode 120 comprise a magnetic conductive material, such as a rare earth element, and the dielectric layer 130 is made of titanium oxide (Ti〇3), oxidized.钡Ti (BaTi〇3) or a semiconductor layer, such as silicon oxide, but the invention is not limited thereto, the first magnetic electrode 110, the second magnetic electrode 12 〇 and the dielectric layer 130 are visible products Use appropriate materials in order to meet the needs. The analogy shows that the operating principle of the magnetic capacitor of the present invention is as follows. The phenomenon that the resistance of a substance changes under a certain magnetic field is called the "magnetoresistive effect". Magnetic metal and alloy materials generally have such a magnetoresistance phenomenon. Generally, the resistivity of a substance is only slightly reduced in a magnetic field; Under certain conditions, the magnitude of the decrease in resistivity is quite large, which is more than 10 times higher than the magnetic resistance of conventional magnetic metals and alloy materials, and can produce a very large magnetoresistance effect. If the step-by-step method is combined with the Maxwell-Wagner circuit model, a large magnetic capacitance effect may also occur in the magnetic particle composite medium. In the conventional capacitor, the capacitance value C is determined by the area A of the capacitor, the dielectric constant of the dielectric layer, and the thickness d, as shown in the following equation. However, in the present invention, the % magnetic capacitor 3 mainly uses the magnetic poles arranged in the first magnetic electrode u〇 and the second magnetic electrode to form a magnetic field, so that the internally stored electrons rotate in the same-spin direction and are neatly arranged. The arrangement is such that it can accommodate more charge under the same conditions, and it increases the storage density of energy. Analogous to the conventional capacitor, the operation principle of the magnetic capacitor 3 is equivalent to changing the dielectric constant of the dielectric layer 130 by the action of the magnetic field, thereby causing a substantial increase in the capacitance value C = ~~~1Γ 201022878 In addition, in this embodiment The interface 131 between the first magnetic electrode 11 〇 and the dielectric layer 3 〇 and the interface 132 between the second magnetic electrode 12 〇 and the dielectric layer i 3 均为 are both - uneven surfaces to increase The surface area a is further increased by the capacitance value c of the magnetic capacitor 3. Please refer to FIG. 4'. FIG. 4 is a schematic structural view of the first magnetic electrode of the magnetic capacitor of the present invention. As shown in FIG. 4, the first magnetic electrode has a multilayer structure including a first magnetic layer 112, an isolation layer ι4, and a second magnetic layer 116. Wherein the isolation layer 114 is composed of a non-magnetic conductive material such as copper, and the first magnetic layer 112 and the second magnetic layer ι 6 comprise a magnetic conductive material, and when magnetized, by an appropriate applied magnetic field, The magnetic dipoles 113 and 117 in the first magnetic layer 112 and the second magnetic layer 114 are respectively made to have different directions. For example, in the preferred embodiment of the present invention, the directions of the magnetic dipoles U3 and 117 are reversed. The leakage current of the magnetic capacitor 3 is “-step (4). In addition, it should be emphasized that the structure of the magnetic electrode is not limited to the above three-layer structure, and in a similar manner, the two magnetic layers are continuously interleaved with the non-magnetic conductive layer. Stacking, and further adjusting the leakage current of the magnetic capacitor 3 by adjusting the magnetic dipole direction in each magnetic layer, and even achieving almost no leakage current effect. ^Besides, most of the conventional energy storage components are chemically energized. The storage needs to have a certain size. Otherwise, it will often result in a large efficiency: drop: two compared to the 'magnetic capacitor 3 of the present invention is the potential energy side', and because the material used can be applied to The circuit 2 is formed by a suitable semiconductor process to form the magnetic capacitor 3 and the peripheral circuit, thereby reducing the volume and weight of the magnetic capacitor 3. Since the manufacturer 10 201022878 can use a general semiconductor process, it should be familiar with the term. It is well known to the skilled person, so it will not be described here. 4 Reference @ 5 Figure 5 is another schematic view of the magnetic capacitor of the present invention. As described above, in the present embodiment, a semiconductor process is used to fabricate a plurality of substrates on a substrate. a small-sized magnetic capacitor 3, and an electrical connection between the plurality of small-sized magnetic capacitors 3 by a suitable metallization process to form a magnetic body including a plurality of small-sized magnetic capacitors 3 The capacitor group 3 and the magnetic capacitor group 3 are used as the power source of the energy storage device or the external device. In the embodiment, the plurality of small-sized magnetic capacitors 3 in the magnetic capacitor group 3 are in an array-like manner. Electrical connection, however, the invention is not limited thereto, and may be appropriately connected in series or in parallel according to different voltage or capacitance value requirements to meet various devices. Power Supply Requirement Referring back to FIG. 1, the resistor circuit 4 of the present embodiment includes a voltage frequency converter 41 and a switching capacitor circuit 42, wherein the voltage frequency converter 41 can be a control oscillator (Voltage Control Oscillator). Referring to FIG. 6, FIG. 6 is a diagram showing the relationship between the input voltage of the voltage-to-frequency converter 4i and the output signal frequency, wherein the frequency of the output signal of the voltage-to-frequency converter 41 increases with the input voltage. In addition, the voltage-to-frequency converter 41 is coupled to the magnetic capacitor 3 and detects the voltage output from the magnetic capacitor 3, and converts its voltage Γ to a pulse signal output to the switched capacitor circuit 42. In other words, the voltage of the magnetic capacitor 3 will gradually decay with the use time. In other words, the frequency of the pulse signal output by the voltage-frequency converter 41 will become faster and faster. Moreover, the switching capacitor circuit 42 has a capacitor 43 and a switch 44 that couples the power 11 201022878 to the voltage converter 41 and the capacitor 43. The switch 44 is subjected to the pulse signal output by the voltage-to-frequency converter 41. Control is such that the capacitor 43 is alternately coupled to the magnetic capacitor 3 or the load 2. When the capacitor 43 is coupled to the magnetic capacitor 3, the capacitor 43 is in a state of charge, so that the voltage F that the magnetic capacitor 3 rotates charges the capacitor 43 so that the accumulated amount of charge is 01 = , where C is the capacitor 43 Capacitance. When the switching capacitor 44 is connected to the load 2, the capacitor 43 is in a discharged state, so the amount of charge accumulated by the capacitor 43 is reduced to 込=C&, so the average current during the period of the pulse signal is r. _a-g2_c(r-Ff) rp rp Therefore, the switching value of the switching capacitor circuit 42 through the switch 44 can be equivalent to the resistance value & R ^ ~ VL_T_ 1
eq Im c fC 由上式可知，切換電容電路42的等效電阻值心會與切換器 44的切換頻率成反比，也就是說，切換器44切換的頻率越Eq Im c fC As can be seen from the above equation, the equivalent resistance value of the switched capacitor circuit 42 is inversely proportional to the switching frequency of the switch 44, that is, the frequency with which the switch 44 switches is
快，切換電容電路42所等效出來的電阻值心會越小。又， 本實施例之電壓頻率轉換器41所輸出的訊號之頻率會隨著 磁性電容3輸出的電壓「增加而降低，換言之，磁性電容3 輸出的電壓Γ會與切換電容電路42的等效電阻值心成正比 ，如此一來，當磁性電容3的電壓r隨著使用時間^漸衰減 時，切換電容電路42的電阻值心也會隨之減少，又在一個 固定的負栽2下，本發明之定電流源電路丨將會有一個固 定的電流I輸出。 值得一提的是，本實施例之定電流源電路丨更包含一 12 201022878 - 電容5,當磁性電容3所儲存的電壓r隨著使用時間漸漸衰 減時，會導致電壓頻率轉換器41輸出訊號的頻率越來越高 • ，使得切換器44在切換的瞬間會產生許多高頻的雜訊，而 該電容5可以過濾這些高頻的雜訊，使定電流源電路丨能 有一個更穩定的輸出電流I。 綜上所述，本發明之定電流源電路藉由偵測一個磁性 電容的電壓，並根據該電壓去控制定電流源電路輸出電流 通過的電阻的阻值，使定電流源電路得以產生一個固定的 -© 輸出電流。 惟以上所述者’僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，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是一電路示意圖，說明本發明定電流源電路之較 佳實施例； '參 • 圖2是一比較示意圖，說明本發明之磁性電容與其他 習知能量儲存媒介之比較； 圖3疋一結構示意圖，說明本發明之磁性電容的結構 9 圖4是一結構示意圖，說明為本發明之磁性電容的第 一磁性電極另一種之結構； 圖5是一結構示意圖，說明本發明之磁性電容之另— 示意圖；及 13 201022878 圖6是一波形圖，說明本發明之電壓頻率轉換器的輸 入電壓與輸出訊號頻率的關係。Faster, the resistance value of the switched capacitor circuit 42 will be smaller. Moreover, the frequency of the signal output by the voltage-to-frequency converter 41 of the present embodiment decreases as the voltage output from the magnetic capacitor 3 increases. In other words, the voltage 输出 output from the magnetic capacitor 3 and the equivalent resistance of the switched capacitor circuit 42 The value is proportional to the heart, so that when the voltage r of the magnetic capacitor 3 is gradually attenuated with the use time, the resistance value of the switched capacitor circuit 42 is also reduced, and in a fixed load 2, The constant current source circuit of the invention will have a fixed current I output. It is worth mentioning that the constant current source circuit of the embodiment further comprises a 12 201022878 - capacitor 5, when the voltage stored in the magnetic capacitor 3 r As the usage time is gradually attenuated, the frequency of the output signal of the voltage-to-frequency converter 41 is increased. • The switch 44 generates a lot of high-frequency noise at the moment of switching, and the capacitor 5 can filter these high frequencies. Frequency noise, so that the constant current source circuit can have a more stable output current I. In summary, the constant current source circuit of the present invention detects the voltage of a magnetic capacitor, and according to the Pressing the resistance of the resistor that controls the output current of the constant current source circuit allows the constant current source circuit to generate a fixed -© output current. However, the above description is only a preferred embodiment of the present invention. The scope of the present invention is defined by the scope of the present invention, and the simple equivalent changes and modifications made by the present invention are still within the scope of the present invention. Is a circuit diagram illustrating a preferred embodiment of the constant current source circuit of the present invention; FIG. 2 is a comparative diagram illustrating a comparison of the magnetic capacitor of the present invention with other conventional energy storage media; FIG. 4 is a schematic structural view showing another structure of a first magnetic electrode of the magnetic capacitor of the present invention; FIG. 5 is a schematic structural view showing another magnetic capacitor of the present invention. Schematic; and 13 201022878 Figure 6 is a waveform diagram illustrating the input voltage and output signal frequency of the voltage to frequency converter of the present invention Department.
14 201022878 - 【主要元件符號說明】 1 ··..· ••…定電流源電路 110 ·· ••…第一磁性電極 112 ·· ••…第一磁性層 113、 117 ••…磁偶極 114 .. ••…隔離層 115、 125 .....磁偶極 116 ·. .....第二磁性層 120 ·· ••…第二磁性電極 130 .· ••…介電層 131 ' 132 ............介面 2 ..........負載 3 ..........磁性電容 3 ’ .........磁性電容 4 ..........電阻電路 41 .........電壓頻率轉換器 42 .........切換電容電路 43 .........電容 44 .........切換器 5 ..........電容14 201022878 - [Description of main component symbols] 1 ·····••• Constant current source circuit 110 ·· ••...first magnetic electrode 112 ··••...first magnetic layer 113, 117 ••...magnetic couple Pole 114 .. ••...Isolation layer 115, 125 ..... magnetic dipole 116 ·...... second magnetic layer 120 ··••...second magnetic electrode 130 .· ••...dielectric Layer 131 '132 ............Interface 2 ..........Load 3 .......... Magnetic Capacitor 3 ' ...... ...magnetic capacitor 4 ..... resistance circuit 41 ... ... voltage frequency converter 42 ... ... switching capacitor circuit 43 .... .....capacitor 44 .........switch 5 ..... capacitor
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