1287697 九、發明說明： 【發明所屬之技術領域】 本發明係有關一種電源供應器之負 種應用於具備最大功率使用限制功能之電源===、*尤指一 -者可自行切換定義是否具備此限制功能。、—亚達到使用 . 【先前技術】 ，電力輸出埠均需增加一功率保護電2:::= ►電源供應器製作輯相當困擾，主因在 在設計功率高但不具備保護功能之電ς 應 具汉计製造成本，並不符真正經濟效益。 又 【發明内容】 本發明之轉目的，在於解紅述之缺失，避免缺失的存在， 5 1287697 ΐί明ί提供—種可讓制者自行視功率需求決定是否具備保護 應益負載保護控制電路，藉本發明達成電源供應器 統7製作單一機種產品’亦讓使用者可在配備高功 率週故配備日寸無須更換不同機種電源供應器。 之電目二應用於具備最大功率使用限制功能 ^ ^ μ屯源众應态至少具備有一輸出直流電驅動負載 电專、电路及—啟閉該電力轉換電路之控制電路，且兮帝 電性連接一設有基準功率值之功率保= ΐΐΐίϊ訊號至控制電路啟閉電力轉換電路，本發明ϋ功ί 保控制電路電性連接—切換電路，_ 控制電路達成負載保護控制目的。 有關本發明之詳細朗及技術内容 請參閱『第卜2圖所示』，係本發明電路^^兄明如下： 思圖’如®所示··本發明之電源供應 路示 驅動負載50之電力轉換電路1〇及一啟_<肴有—輪出直流電 制電路40，且該電力轉換電路10與控制電 電路10之控 有基準功率值之功率保護電路2G，令驅動 ，了 連接-設 ，率保護電路20以基準功率值比較並出 ^電力由該 40啟閉電力轉換電路1〇，其中，該功率娜保&^^控制電路 4〇更電性連接-切換電路3〇,該切換電又 =20與控制電路 令該開關6G啟閉使切換電路3G轉換為開路有-開關60， 定該保護訊號是否傳遞至控制電路4=路狀態，藉以決 在第2圖中，本發明舉出一種採用、控制目的。 值之功率保護電路20,基於各項功率保護電路原 作為基準功率 屬習知技術’本發明當可適用於其他如〜之種類眾多且已 功率值或等效電路之功率保護電路2〇，依&=源^為基準 豕&明之貫施例，該 1287697 當=d2p0係包含有一訊號放大器21及一功率比較器22 ’ 流啟，令電力轉換電路10變壓轉換電力並輸出直 2〇之驅動mm依據負产50所需功率不同，流經功率保護電路 並經訊朽曰產生t化，此時，當直流電同步通過電阻R1〜R4 • 22,此二^ 21將信號轉換為—執行功率值至功率比較器 該勃'、、比較器22將以定電壓源221提供之基準功率值與 閉，此處所決定是否關 3圖所亍f t 電職應11之機殼秘7G上（如第 保護目的，但若使用者 ===== 的辑遞至控制電路4°，亦即達成功率保護電㈣負:護;== 明之僅i if!的較佳實施例而已’並非用來限定本發 7 12876.97 【圖式簡單說明】 第1圖，係本發明之實施電路方塊示意圖 第2圖，係本發明之實施電路示意圖 第3圖，係本發明電源供應器機殼面板上之開關配置示意圖 【主要元件符號說明】 10........ 20........ ......功率保護電路 21 ·······. 22........ 221 ······ · ......定電壓源 30........ ......切換電路 40........ ......控制電路 50........ ......負載 60........ ......開關 70........ R1〜R4 ...... ......電阻1287697 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a power supply that is applied to a power supply having a maximum power usage limitation function ===, * especially one can be switched by itself to define whether or not This restriction feature. [Year-to-use] [Previous technology], the power output 埠 needs to increase the power protection 2:::= ► The power supply production is quite troublesome, mainly due to the high power in the design but not the protection function. The cost of manufacturing is not in line with real economic benefits. [Explanation] The purpose of the present invention is to solve the lack of redness and avoid the existence of the missing, 5 1287697 ΐ 明 ί — — 种 种 种 种 种 种 种 种 种 种 种 种 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可 可Invented to achieve the power supply system 7 to make a single model of the product 'also allows users to equip with high power and equipped with a day without the need to replace different types of power supply. The second object is applied to the function with maximum power usage limit. ^ ^ μ屯 The source state has at least one output DC drive load electrical circuit, circuit and control circuit for opening and closing the power conversion circuit, and the electric connection is The power supply with the reference power value = ΐΐΐίϊ signal to the control circuit to open and close the power conversion circuit, the present invention ensures that the control circuit is electrically connected - the switching circuit, the control circuit achieves the load protection control purpose. For details of the present invention, please refer to "Fig. 2", which is the circuit of the present invention. The following is a schematic diagram of the circuit of the present invention: The power conversion circuit 1 〇 一 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ It is assumed that the rate protection circuit 20 compares and outputs the power from the reference power value by the 40-turn-on/off power conversion circuit 1〇, wherein the power Nabao & control circuit 4〇 is further electrically connected-switched circuit 3〇, The switching power is further changed to 20 and the control circuit causes the switch 6G to open and close, so that the switching circuit 3G is switched to the open circuit-switch 60, and whether the protection signal is transmitted to the control circuit 4=road state, by the second figure, The invention cites an application and control purpose. The power protection circuit 20 of the value is based on the power protection circuit as the reference power is a prior art. The present invention is applicable to other power protection circuits, such as a variety of power values or equivalent circuits. &=source^ is the reference 豕& Ming, the 1287697 when =d2p0 includes a signal amplifier 21 and a power comparator 22', the power conversion circuit 10 is transformed and converted to output power and output 2 The drive mm is different according to the required power of the negative production 50, flows through the power protection circuit and is generated by the signal decay. At this time, when the direct current is synchronously passed through the resistors R1 RR4 • 22, the two ^ 21 converts the signal into - execution The power value to the power comparator, the comparator 22 will be the reference power value provided by the constant voltage source 221 and closed, here is determined whether or not the 3 亍ft electric power should be 11 on the shell secret 7G (such as For the purpose of protection, but if the user ===== is relayed to the control circuit 4°, that is, the power protection device (4) is negative: the protection; == the preferred embodiment of only i if! To limit the hair of this issue 7 12876.97 [Simple diagram of the diagram] Figure 1, FIG. 2 is a schematic diagram of a circuit diagram of an implementation of the present invention. FIG. 3 is a schematic diagram of a switch configuration on a power supply unit casing panel of the present invention. [Main component symbol description] 10. 20........ ......Power Protection Circuit 21 ·······. 22........ 221 ········· Constant voltage source 30..............Switching circuit 40..............Control circuit 50........ ...load 60........ ......switch 70........ R1~R4 ............resistance