TW200826398A - Circuit protection apparatus - Google Patents

Circuit protection apparatus Download PDF

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Publication number
TW200826398A
TW200826398A TW95145732A TW95145732A TW200826398A TW 200826398 A TW200826398 A TW 200826398A TW 95145732 A TW95145732 A TW 95145732A TW 95145732 A TW95145732 A TW 95145732A TW 200826398 A TW200826398 A TW 200826398A
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Taiwan
Prior art keywords
circuit
voltage
protection device
switch
rectifier
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TW95145732A
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Chinese (zh)
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TWI321887B (en
Inventor
I-Wei Shen
Jon-Cheng Chen
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Inventec Corp
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Publication of TWI321887B publication Critical patent/TWI321887B/en

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  • Dc-Dc Converters (AREA)
  • Rectifiers (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

A circuit protection apparatus is provided, which is electrically coupled to a DC voltage supplier, and includes a switch circuit, an over-voltage sensing circuit, and a rectifying circuit. The switch circuit is electrically coupled to the DC voltage supplier at one end, for conducting or cutting off a DC voltage supplied by the DC voltage supplier. The over-voltage sensing circuit is electrically coupled to the switch circuit at one end, for receiving and sensing the DC voltage conducted by the switch circuit. The rectifying circuit is connected to the switch circuit at one end, and connected to the over-voltage sensing circuit at the other end, for receiving an enable signal, and making the switch circuit cut off the DC voltage supplied by the DC voltage supplier once the enable signal is received.

Description

200826398 九、發明說明: 【發明所屬之技術領域】 本發明係關於-種電路保護裝置,特別是關於—種防止過電 壓輸入之電路保護裝置。 【先前技術】 近年來,由於電子產業及材料科學之日益進步,以及各類新 式的電子產品卩絲_電子零件及製造技術的開發成功,不僅大 巾田降低了電子產品的製作成本,並有效的提升電子產品之功能及 品質。又因半導體製造技術之不斷進步,令各式小型化之半導體 元件’取代了傳統電子元件’使各式電子產品得以朝輕薄短小之 市場趨勢及絲大步翁,且提升了各式電子產品在仙上的便 及a及1±使;^各種電g產品與仙的生活發生了密不可分 的關係。 而無論一般家用的電器產品或是可攜式電子裝置,均需要提 供其電源加以操作。但各種電子裂置所需用之電源及電壓,因盆 個別需求科同,使得各_子技無法錢制一般電壓為 伏特之又"心源。因此,卿時常需購買專屬的變壓器。 若所購買之變壓器的品質不佳,無法提供電子裝置所需之桿 準電壓,或細者因其具有許多提供不晒之_,而於 使用時,容易造成電子裝置内部電路及精密元件之燒毀或損壞。 200826398 f發明内容】 鑒於以上的問題,本發明的目的在於提供用t路保護裝置, 裝設於電子裝置之電源輸入端,以在使用者使用不正確之變歷器 或使用之變職工作不正常時,予以斷電,以保護電子裝置。 為達到以上所述之目的’本發明揭露一種電路保護裝置,係 電輪於—直流電驗應器,肋料錢賴供應器所提供 之-直流電壓,其包括有—_電路、—過電顧測電路以及一 整^電路;職電路’其—端電_接於該直流賴供應器,用 以選擇性導通及切斷直流供應器提供之直流她過電壓感 測電路,係設定有—鮮霞範圍,且其_端紐連接於開關電 路,且與錢供絲並聯,肋接收域顺關電路導通 =直流電壓之賴,當直流電壓之電壓超過鮮紐範圍,則過 電壓感測電路會輸出—致能訊號;以及—整流電路,其一端連接 ^開關電路,並具有另—端連接至過電壓感測電路,且與直流電 聖仏應綠% ’用以接收致能訊號,並於接收到致能訊號時使開 關電路切斷直流電驗絲提供找直流電壓。 本發明之功效在於所提供之電路保護裝置係設置於變壓器 及電子裝置之間,其中,電路保魏置具有過電壓感測電路,用 以檢測變壓器所輸出之直流電壓是否正常落於電子裝置之標準 電壞範圍内,並且電路保護裝置利用其整流電路之導通與否而加 200826398 以保濃$子襄置不因過高的電壓輸人*造成㈣。此外,再利用 電路保濩裝置上之燈示顯示,以表示開關電路的打開或閉合,進 而使使用者清楚發現變壓器的運作是否正常。藉此,可除去因人 為失誤或籠n產品品質不麵造成電子裝置的損壞。 以上之關於本發明内容之說明及以下之實施方式之說明係 用以示範與解釋本發明之原理,並且提供本發明之專利申請範圍 更進一步之解釋。 【實施方式】 為使對本發明的目的、構造、特徵、及其功能有進一步的瞭 解,茲配合實施例詳細說明如下。 首先,請參照「第1圖」所示,係為利用本發明之電路保護 裝置之系統_圖。卿本發明之電路保縣置綱之系統係且 有麵器⑽、電路保護裝置咖及電子裝置⑽。其中變_ ⑽首先插人固定於牆上或任何—聽之插座内,肋將插座内 提供隻1服或220V之交流電_奐成_直流麵輸出。通常依 據不同需求,不同變壓器⑽將輸出不同之直流電壓(端看設計 者之設定)。 本發明中之麵器⑽係輸出—直流電壓至電路保聲置 。而電路紐裝置測係具有輪入物、輸出物、手動 開關207及燈示區210。輸入埠2ni在& & 早Z01係為接收變壓器100輸入之 200826398 待測直流電壓,若錢龍所提供之·符合電路保護裝置細 之要求,則於燈示區210 _代表電路保魏置導通之燈 不’並由輸出埠205將直流電壓輸出至電子裳置ιι〇,以安全地 提供電子裝置110所需之電源。 接者,請茶照「第2A圖」所示,係為本發明第一實施例之 電路保魏置之㈣祕配涵。本發明之電路倾裝置· 係具有開關電路22G、電容n 214、過感測電路23()、整流 電路24G及發光二極體21卜212。開關電路22G其一端電性搞 接至變壓ϋ(直流賴供絲)⑽,以接收直流電壓。開關電路 220用以導通或切斷自變壓器(直流電驗應器)丨⑼供應之直流 電壓。於本實施例中開關電路咖係為一繼電器開關。電容器 214係用以使變壓器(直流電壓供應器)⑽提供之直流電壓達到 穩壓的效果。 過電壓感測電路230係設定有一預設電壓值,且電性耦接於 k壓為100 ’過感測電路230帛以接受並感測被開關電路22〇 導通之直流電壓之電壓值。當直流電壓大於預設電壓時,則過電 壓感測電路23G會輸出―致能訊號,反之則否。並且過電壓感測 電路230可以依相異電子裝置11Q而設定有相異之預設電壓值, 以安全提供各式電子裝置110所需之電源。 其中,過電壓感測電路230其中一實施樣態可如「第3圖」 200826398 所不,其包括有電壓比較器23卜預設電壓源232、輸入端237、 238、輸出端239、電容器233以及多數個分壓電阻234、235、 236。當直流電壓自輸入端235、236輸入過電壓感測電路23〇, 亚經由將輸入電壓比較器231中與預設電壓源232提供之預設電 壓作比較。若比較結果為輸人電壓大於比㈣231設定之預 設電壓範圍,則過電壓感測電路23G會自輸出端239輸出一致能 桌5虎,反之則否。如上所述,若變換預設電壓源232所提供之電 壓值,則可隨使用者之需求而設定有相異之標準電壓範圍。 整流電路24G與變壓器⑽相並聯,整流電路謂係可為一 閘⑼Λ。其中整流電路_可以例如切控制整流器⑸200826398 IX. Description of the Invention: [Technical Field] The present invention relates to a circuit protection device, and more particularly to a circuit protection device for preventing overvoltage input. [Prior Art] In recent years, due to the advancement of the electronics industry and materials science, and the successful development of various new types of electronic products 卩 _ electronic parts and manufacturing technology, not only the large towel field reduces the production cost of electronic products, and is effective. Enhance the functionality and quality of electronic products. Thanks to the continuous advancement of semiconductor manufacturing technology, various miniaturized semiconductor components 'replaced traditional electronic components' have enabled various electronic products to be light, thin and short, and have greatly improved the variety of electronic products. On the fairy, and a and 1 ± make; ^ various electric g products and the life of the immortal has an inseparable relationship. Regardless of the general household electrical products or portable electronic devices, they need to be powered to operate. However, the power supply and voltage required for various electronic crackings are different because of the individual needs of the basins, so that the various voltages can not be used to make the general voltage volts. Therefore, Qing often needs to buy a dedicated transformer. If the quality of the transformer purchased is not good enough, the standard voltage required for the electronic device cannot be provided, or the thinner is not provided for many reasons, and it is easy to cause the internal circuit and precision components of the electronic device to burn out when used. Or damaged. In view of the above problems, an object of the present invention is to provide a t-way protection device that is installed at a power input end of an electronic device to work with an incorrect changer or use of the user. When it is normal, power off to protect the electronic device. In order to achieve the above-mentioned purposes, the present invention discloses a circuit protection device, which is provided by an electric wheel, a DC power detector, and a DC voltage provided by a rib material supply, which includes a -_ circuit, a pass-through The measuring circuit and a whole circuit; the operating circuit 'the terminal' is connected to the DC-supply device for selectively turning on and off the DC over-voltage sensing circuit provided by the DC supplier, and is configured to have a fresh Xia range, and its _ terminal is connected to the switching circuit, and is connected in parallel with the money supply wire. The rib receiving field is connected to the circuit. = DC voltage depends. When the voltage of the DC voltage exceeds the range of the fresh voltage, the overvoltage sensing circuit will Output-enable signal; and - rectifier circuit, one end of which is connected to the ^ switch circuit, and has another end connected to the over-voltage sensing circuit, and the DC-powered % 绿 green % ' is used to receive the enable signal, and receive When the signal is enabled, the switching circuit is cut off from the DC test wire to provide a DC voltage. The utility model has the advantages that the circuit protection device provided is disposed between the transformer and the electronic device, wherein the circuit protection device has an overvoltage sensing circuit for detecting whether the DC voltage outputted by the transformer is normally falling on the electronic device. Within the standard electrical fault range, and the circuit protection device uses the conduction circuit of its rectifier circuit to add 200826398 to ensure that the power is not caused by excessive voltage input (4). In addition, the lamp display on the circuit protection device is used to indicate the opening or closing of the switch circuit, thereby making it clear to the user whether the operation of the transformer is normal. Thereby, damage to the electronic device due to human error or the quality of the cage product can be removed. The above description of the present invention and the following description of the embodiments of the present invention are intended to illustrate and explain the principles of the invention. [Embodiment] In order to further understand the objects, structures, features, and functions of the present invention, the embodiments will be described in detail below. First, please refer to the system diagram of the circuit protection device of the present invention as shown in Fig. 1. The circuit of the invention of the invention is the system of the prefecture (10), the circuit protection device and the electronic device (10). Among them _ (10) first inserted into the wall or any - listening socket, the rib will provide only 1 service or 220V AC power in the socket _ _ _ DC surface output. Usually different transformers (10) will output different DC voltages depending on different requirements (see the designer's settings). In the present invention, the surface device (10) outputs - DC voltage to the circuit sound preservation. The circuit board device has a wheeled object, an output, a manual switch 207, and a light indicating area 210. Input ni2ni in && early Z01 is the DC voltage to be tested for the receiving transformer 100 input 200826398, if the supply provided by Qianlong meets the requirements of the circuit protection device, then the display area 210 _ represents the circuit protection The turned-on light does not 'and the output voltage 输出 205 outputs the DC voltage to the electronic sputum to safely provide the power required by the electronic device 110. In the case of the photo, please refer to the "4A" of the first embodiment of the present invention. The circuit tilting device of the present invention has a switching circuit 22G, a capacitor n 214, an over-sensing circuit 23 (), a rectifying circuit 24G, and a light-emitting diode 21 212. The switch circuit 22G is electrically connected to the transformer 直流 (DC GND) (10) at one end to receive the DC voltage. The switch circuit 220 is used to turn on or off the DC voltage supplied from the transformer (DC detector) 丨 (9). In this embodiment, the switch circuit is a relay switch. The capacitor 214 is used to stabilize the DC voltage supplied from the transformer (DC voltage supply) (10). The overvoltage sensing circuit 230 is configured to have a preset voltage value, and is electrically coupled to the k voltage to be 100' over the sensing circuit 230A to receive and sense the voltage value of the DC voltage that is turned on by the switching circuit 22A. When the DC voltage is greater than the preset voltage, the overvoltage sensing circuit 23G outputs an enable signal, and vice versa. Moreover, the overvoltage sensing circuit 230 can be configured with different preset voltage values according to the dissimilar electronic device 11Q to safely provide the power required by the various electronic devices 110. The implementation of the overvoltage sensing circuit 230 can be as shown in FIG. 3, which includes a voltage comparator 23, a preset voltage source 232, an input terminal 237, 238, an output terminal 239, and a capacitor 233. And a plurality of voltage dividing resistors 234, 235, and 236. When the DC voltage is input from the input terminals 235, 236 to the overvoltage sensing circuit 23, a comparison is made between the preset voltages supplied from the input voltage comparator 231 and the preset voltage source 232. If the comparison result is that the input voltage is greater than the preset voltage range set by the ratio (4) 231, the overvoltage sensing circuit 23G outputs a consistent energy table 5 from the output terminal 239, and vice versa. As described above, if the voltage value provided by the preset voltage source 232 is changed, a different standard voltage range can be set as the user desires. The rectifier circuit 24G is connected in parallel with the transformer (10), and the rectifier circuit can be a gate (9). Wherein the rectifier circuit _ can, for example, switch the rectifier (5)

ControHed Rectif ier ; S⑻或三端雙向矽控制整流器 (TRIAC)。第一貝施例中整流電路24〇係為石夕控制整流器,則其 具有三端點分別為陽極端24卜陰極端242及閘極端如,且陽 極端241連接至開關電路220,而閘極端243連接至過電壓感測 電路230。 由於石夕控制整流器具有在未導通前可以承受高電壓,而在導 通後有㈣向電難高導魏流之,且根據不同之閘極電流 輸入而反應不同之順向轉態電壓。因此,切㈣整流器之問極 端243連接於過電壓感測電路230 b夺,若輸入於過電壓感測電路 230之直流電壓之電壓值高過過電壓感測電路23()所設定之電壓 200826398 標準值範圍,則過感測電路23〇會輸出致能訊號(觸發脈波) 至石夕控制整流器之間極端243。所以,石夕控制整流器之順向轉態 電壓將低於陽極/陰極間所承受之電虔,而啟動石夕控制整流器, 進而允許產生極大的電流通過。因此,將如同產生短路現象而使 得開關電路220被切斷(打開)。 相反的,若輸入於過電壓感測電路230之直流電壓之電壓值 在過電壓感測電路230所設定之電塵標準絲圍中,則過電屋感 測電路不會輸出致能訊號(觸發脈波)至石夕控制整流器之閘極端 3所以;^控制整心朗未被導通而可承受高麵。亦即, 使得開關電路220被導通(閉合)。 接著,請參照「第2B圖」所示,係為本發明第二實施例之 電路保護裝置之内部線路配置圖。整流電路241係為_三端雙向 石夕控制整流器⑽AC),其原理與硬控制整流器相同,主要差里 在於三端雙向石夕控制整流器之三端點分別為兩個陽極端 _及-問極賴3。因此其無順向及反向的差別,並可以雙向 驅動此石夕控制整流器。 又〇 ft!00更具有第一發光二極體211及第二發光二極體 。/、中弟—發光二極體211係電性連接於變壓器⑽之後端 及開關電物之前端,則不論開關電路22G是否導通,第一發 200826398 光二極體211均可接收到變壓器⑽所提供之直流電壓而發光。 λ、、;而第一么光一極體212係電性連接於開關電路22〇之後端, 因此’第二發光二極體212的發光與否取決於開關電路22〇是否 導通。 本實施例中’第一發光二極體211係可以例如是紅光發光二 極體,第-發光二極體212彳以例如是藍光發光二極冑,且均設 置於電路保護裝置2〇〇之燈示區21〇内。 於上述電路中,若賴器⑽提供之直流賴的電壓值大於 過電壓感測電路230奴之預設電壓範圍時,整流電路24〇會收 到致能訊號而被導通,進而允許產生極大的電流通過,即如同產 生短觀象而使得開關電路咖被切斷(打開)。因此,直流電麼 之電流只可通過連接於開關電路22”端之第一發光二極體m 以致使第一發光二極體211發光, 進而於電路保護裝置之燈示區 2H)發出紅光,並表示變壓器⑽提供之直流電壓異常而斷電 減的,若直流糕之電壓值符合過電壓感測電路咖設定之方 設電愿細時,整流電路綱不會_致能訊號,亦不會· 通’因此,上述短路現象不會發生,而開關電路22Q會持續閉合 因此,直流嫩電咖侧贿2ΐι而細 先’亦可同時通過第二發光二極體212而發出藍光,並且於電路 保護裝置之如發峨,即表 200826398 示,交屋态100提供之直流電璧當 i吊同捋,電路保護裝置之輸出 阜205 ^通過檢測之直流麵傳送至電子裝置⑽。 —本發权電輪錄置·更可具有伟卿抓,且與變 屋益100並聯。當使用者欲中斷麵器⑽提供之直流電屡時, 則按下手動開關207,使手動開關207被導通而造成電路的短路 現象。同樣的,開«路220會因此切斷直流電叙供應。 本發明之電路保護裝置的功效在於所提供之電路保護裝置 係設置於籠器及電子褒置 虿路保蠖裝置具有過電 電路’用以檢測_所輪出之直流電壓是否正常落於電 子裝置之標準電壓範圍内。 讀置利用其整流電路 =通财砂轉護電抒置不_糾麵輸人而造成損 壞。此外,再利用電路保 、 .,Β 衣置上之^不顯不’以表示開關電路 、丁”&合’進而使使用者清楚發現變翻的運作是否正常。 ΙΖ除去因人為失誤或魏器產品品質不佳而造成電子裝置 雖然本發明以前述之實 ^0Β如 7工恣其並非用以限定本 發明。在顿離本翻之精神 屬本發明之固内所為之更動與潤飾,均 月之翻料關。本發_界定 所附之申請專利範圍。 【圖式簡單說明】ControHed Rectif ier ; S (8) or three-terminal bidirectional 矽 control rectifier (TRIAC). In the first embodiment, the rectifier circuit 24 is a Xixi control rectifier, and has three terminals: an anode terminal 24, a cathode terminal 242, and a gate terminal, and the anode terminal 241 is connected to the switch circuit 220, and the gate terminal is 243 is connected to the overvoltage sensing circuit 230. Since the Shixi control rectifier can withstand a high voltage before being turned on, and after the conduction, there is a (four) electric power, which is highly conductive and has a different forward transition voltage according to different gate current inputs. Therefore, the quadrupole rectifier terminal 243 is connected to the overvoltage sensing circuit 230b. If the voltage value of the DC voltage input to the overvoltage sensing circuit 230 is higher than the voltage set by the voltage sensing circuit 23(), 200826398 In the range of the standard value, the over-sensing circuit 23 输出 outputs an enable signal (trigger pulse) to the extreme 243 between the stellar control rectifiers. Therefore, the forward transition voltage of the Shixi control rectifier will be lower than that of the anode/cathode, and the rectifier will be activated to allow a large current to pass. Therefore, the switching circuit 220 is turned off (turned on) as if a short circuit phenomenon occurred. Conversely, if the voltage value of the DC voltage input to the overvoltage sensing circuit 230 is in the electric dust standard wire set by the overvoltage sensing circuit 230, the overcurrent sensing circuit does not output the enable signal (trigger Pulse wave) to Shi Xi control rectifier gate extreme 3; ^ control whole heart is not turned on and can withstand high surface. That is, the switch circuit 220 is turned on (closed). Next, the internal circuit configuration diagram of the circuit protection device according to the second embodiment of the present invention is shown in Fig. 2B. The rectifier circuit 241 is a three-terminal bidirectional control device (10) AC), and its principle is the same as that of the hard control rectifier. The main difference is that the three terminals of the three-terminal bidirectional Shi Xi control rectifier are respectively two anode terminals _ and - Lai 3. Therefore, it has no difference in forward direction and reverse direction, and can drive this Shi Xi control rectifier in both directions. Further, ft! 00 further has a first light-emitting diode 211 and a second light-emitting diode. /, the younger brother - the light-emitting diode 211 is electrically connected to the rear end of the transformer (10) and the front end of the switch electrical material, the first transmission of the 200826398 optical diode 211 can be received by the transformer (10) regardless of whether the switch circuit 22G is turned on or not. The DC voltage is illuminated. λ, ,; and the first photo-polar body 212 is electrically connected to the rear end of the switch circuit 22, so that the light-emitting of the second light-emitting diode 212 depends on whether the switch circuit 22 is turned on. In the present embodiment, the first light emitting diode 211 can be, for example, a red light emitting diode, and the first light emitting diode 212 can be, for example, a blue light emitting diode, and both are disposed in the circuit protection device 2〇〇. The light is displayed in the area of 21〇. In the above circuit, if the voltage value of the DC voltage provided by the device (10) is greater than the preset voltage range of the overvoltage sensing circuit 230, the rectifier circuit 24 receives the enable signal and is turned on, thereby allowing the generation to be extremely large. The current is passed, that is, the switching circuit is cut (opened) as if a short view is produced. Therefore, the current of the direct current can only be transmitted through the first light-emitting diode m connected to the end of the switch circuit 22", so that the first light-emitting diode 211 emits light, and then the red light is emitted in the light-emitting area 2H) of the circuit protection device. It also indicates that the DC voltage provided by the transformer (10) is abnormal and the power is reduced. If the voltage value of the DC cake meets the setting of the overvoltage sensing circuit, the rectifier circuit will not _ enable the signal, nor will it ·Through, therefore, the above short circuit phenomenon will not occur, and the switch circuit 22Q will continue to be closed. Therefore, the DC light electric coffee side bribes 2 ΐ and the fine first 'can also simultaneously emit blue light through the second light emitting diode 212, and the circuit If the protection device is turned on, it is shown in Table 200826398. The DC power provided by the delivery mode 100 is the same as the output of the circuit protection device, and the output of the circuit protection device is transmitted to the electronic device (10) through the DC surface of the detection. The wheel recording can also be carried out by Wei Qing and parallel with the variable housing benefit 100. When the user wants the DC power provided by the middle section (10) to be repeated, the manual switch 207 is pressed, so that the manual switch 207 is turned on to cause the circuit. Short circuit phenomenon. Similarly, the opening of the road 220 will cut off the DC power supply. The circuit protection device of the present invention has the effect that the circuit protection device provided is provided in the cage and the electronically placed circuit protection device has over-current The road 'is used to detect whether the DC voltage that is turned off is normally within the standard voltage range of the electronic device. The reading uses its rectifier circuit = Tongcai sand to turn the power device to prevent damage caused by the face. , and then use the circuit protection, ., 置 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣 衣ΙΖRemoval of electronic devices due to human error or poor quality of the product of the device Although the present invention is based on the foregoing, it is not intended to limit the invention. In the spirit of the present invention, the spirit of the invention is changed and retouched. The present invention defines the scope of the attached patent application. [Simple description of the map]

(S 12 200826398 弟1圖係為_本發明之保護裝置 第2 4圖係為本發明第一與施 ’、、统架構圖; 置圖, 竹W η靶例之電路保 ; I衣置之内部線路配 第2 β圖係為本發明第二實 置圖;以及 施例之電路保護裝 置之内部線路配 置圖 100 110 200 201 205 207 210 變壓器 電子裝置 電路保護裝置 輸入埠 輸出埠 手動開關 燈示區 211 212 214 、 233 第一發光二極體 第二發光二極體 電容器 220 230 開關電路 過電壓感测電路 預設電壓源 s 13 232 200826398 234、235、236 分壓電阻 237 、 238 輸入端 239 輸出端 240 、 240a 整流電路 241 、 241a 陽極端 242 陰極端 243 閘極端 14(S 12 200826398 1 is a diagram of the protection device of the present invention. FIG. 24 is the first embodiment of the present invention, and the architecture diagram of the system; Figure 1, the circuit protection of the bamboo W η target example; The internal circuit is equipped with the second β diagram as the second actual diagram of the invention; and the internal circuit configuration diagram of the circuit protection device of the embodiment 100 110 200 201 205 207 210 Transformer electronic device circuit protection device input 埠 output 埠 manual switch light Area 211 212 214 , 233 first light emitting diode second light emitting diode capacitor 220 230 switching circuit over voltage sensing circuit preset voltage source s 13 232 200826398 234, 235, 236 voltage dividing resistor 237, 238 input terminal 239 Output terminals 240, 240a rectifier circuit 241, 241a anode terminal 242 cathode terminal 243 gate terminal 14

Claims (1)

200826398 十、申請專利範圍: 1· 一種電路保護裝置,係電性耦接於一直流電壓供應器,用以接 受該直流電壓供應器所提供之一直流電壓,其包括有: 一過電壓感測電路,係電性耦接至該直流電壓供應器,並 接收及偵測該直流電壓,用以於該直流電壓大於一預設電壓值 時,輸出一致能訊號; 一整流電路,係電性耦接至該過電壓感測電路,並接收及 根據該致能訊號決定被導通與否·, 一開關電路,係電性耦接於該過電壓感測電路與該直流電 壓供應器之間,該開關電路係為於該整流電路被導通時打開, 而於該整流電路被關閉時閉合;以及 第一發光二極體,係電性耦接於該開關電路與該直流電 壓供應器之間,並於該開關電路打開時被致能。 2. 如申請專利範圍第1項所述之電路保護裝置,更包括-第二發 、> 11體係屯性耦接於該開關電路與該直流電壓供應器之 門JL於該開關電路打開時被致能發光二極體整流電路。 3. 如申μ專利乾圍弟2賴述之電路保護裝置,其巾當該開關電 路被閉合時’該―電壓供應賴該第二發光二極體係形成— 回路。 4·如申請專利範圍第 系1項所述之電路保護裝置,其中當該開關電 15 200826398 路被打開時,嫌獅應物轉〜航二歸係形成一 回路。 5. 如申4利關第丨項所述之電路保護裝置,其中該開關電路 係為一固態繼電開關。 6. 如申請專利範圍第丨項所述之電路保護裝置,其中該整流電路 係為一閘流體(Thyristor)。 7·如申4專觀圍第3項所述之電路保難置,其巾該整流電路 係為一石夕控制整流器㈤化⑽⑽抓㈣㈣如;^。 8·如申請專娜®第3斯述之電路保護裝置,其巾該整流電路 係為一三端雙向矽控制整流器(TRIAC)。 9·如申請專利範圍第6項所述之電路保護裝置,其中該第一及第 二發光元件係為多數個發出相異波長光線之發光二極體。200826398 X. Patent application scope: 1. A circuit protection device electrically coupled to a DC voltage supply for receiving a DC voltage provided by the DC voltage supply, comprising: an overvoltage sensing The circuit is electrically coupled to the DC voltage supply, and receives and detects the DC voltage, and outputs a uniform energy signal when the DC voltage is greater than a predetermined voltage value; a rectifier circuit is electrically coupled Connected to the overvoltage sensing circuit, and received and determined according to the enable signal, a switching circuit is electrically coupled between the overvoltage sensing circuit and the DC voltage supply. The switching circuit is opened when the rectifying circuit is turned on, and is closed when the rectifying circuit is turned off; and the first light emitting diode is electrically coupled between the switching circuit and the DC voltage supply, and It is enabled when the switch circuit is turned on. 2. The circuit protection device of claim 1, further comprising a second, > 11 system electrically coupled to the switch circuit and the gate of the DC voltage supply JL when the switch circuit is open It is enabled to emit a diode rectifier circuit. 3. If the circuit protection device of the application of the patent of the patent of the Shenmu 2, the wiper, when the switch circuit is closed, the voltage supply is formed by the second light-emitting diode system. 4. The circuit protection device as described in item 1 of the patent application scope, wherein when the switch power 15 200826398 is opened, the lion is turned into a circuit. 5. The circuit protection device of claim 4, wherein the switch circuit is a solid state relay switch. 6. The circuit protection device of claim 2, wherein the rectifier circuit is a Thyristor. 7. The circuit protection device described in item 3 of the special observation section of Shen 4, the rectifying circuit of the towel is a stone-controlled rectifier (5) (10) (10) grasping (4) (four) such as; 8. If you apply for the circuit protection device of the No. 3, the rectifier circuit is a three-terminal bidirectional 矽 control rectifier (TRIAC). 9. The circuit protection device of claim 6, wherein the first and second illuminating elements are a plurality of illuminating diodes that emit light of different wavelengths.
TW95145732A 2006-12-07 2006-12-07 Circuit protection apparatus TWI321887B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI401854B (en) * 2008-11-28 2013-07-11 Inventec Corp A protection circuit
TWI478457B (en) * 2012-11-23 2015-03-21 Shu Ling Chen Apparatus for circuit protection
TWI759836B (en) * 2020-08-28 2022-04-01 大陸商宸展光電(廈門)股份有限公司 Voltage input device and power supplying method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI401854B (en) * 2008-11-28 2013-07-11 Inventec Corp A protection circuit
TWI478457B (en) * 2012-11-23 2015-03-21 Shu Ling Chen Apparatus for circuit protection
TWI759836B (en) * 2020-08-28 2022-04-01 大陸商宸展光電(廈門)股份有限公司 Voltage input device and power supplying method

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