1307580 五、發明說明（1) 【發明所屬之技 本發明係有 藉由輸入侧電源 用於電壓、電流 以及接地隔離。 【先前技術】 已知，類比 為常見，該習知 分為電壓與電流 |制端，如CPU等 20mA，且因輸入 將使得線路被侷 目前，為了 輸入之線路，主 器作為放大電路 到控制端的訊號 模式問題，但可 個mA範圓。 I 又’因線路 無隔離，會造成 電流訊號輪入會 件的選用等問題 轉換方式，形成 擷取之電流訊號 號控制已 ，主要係 輸出至控 〜1 0 V或〇〜 別輸入， 〇 電壓訊號 以0P放大 擷取對應 單一訊號 都是在幾 ------- 術領域】 關一種類比訊號轉換隔離裝置，尤指—種 獨立及線性光耦合訊號隔離設計，具有應 源訊號及大電流訊號源的類比訊號轉換， 訊號轉換已應用於電子產品之訊 之類比訊號轉換’如第一圖所示 輪入訊號源，經放大器轉換比例 1該輸入訊號之擷取通常限制在〇 阻抗之差異，需將不同的訊號分 限在單一訊號模式，實用性不高 讓類比訊號轉換能共用於電流與 要係利用一開關切換選擇，配合 ’依據訊號源決定輸入的阻抗以 準位’此雖可解決線路被侷限在 擷取之輸入電流訊號仍然很小， 之共同接地設計’與控制端，如CPU間並 外部雜訊麵合到控制端’以及應用於較大 產生無法擷取訊號及第一圖線路中R4，零 ，所以會藉由-轉換模組，如比流器配置 前級隔離將大：號=為較小，或者可被 ，經電阻產生輸入側的電壓，以達到隔離1307580 V. DESCRIPTION OF THE INVENTION (1) Techniques of the Invention The present invention is applied to voltage, current, and ground isolation by an input side power supply. [Prior Art] It is known that the analogy is common. The conventional method is divided into voltage and current | terminal, such as CPU and other 20 mA, and because the input will make the line be the current, for the input line, the main unit acts as an amplifying circuit to control The signal mode problem at the end, but it can be a mA norm. I also 'due to the fact that there is no isolation of the line, which will cause the problem of the selection of the current signal wheel and the selection of the current signal. The control of the current signal is formed. The main output is controlled to ~1 0 V or 〇~, input, 〇 voltage The signal is amplified by 0P and the corresponding single signal is in the range of -------. The analog signal conversion isolation device, especially an independent and linear optical coupling signal isolation design, has the source signal and Analog signal conversion of high-current signal source, signal conversion has been applied to analog signal conversion of electronic products. As shown in the first figure, the input signal is converted by the amplifier. The input signal is usually limited to the impedance of the input signal. The difference is that different signals need to be limited to a single signal mode. The practicality is not high, so that the analog signal conversion can be used together for the current and the system to use a switch to switch the selection, and the 'corresponding to the signal source to determine the impedance according to the source'. It can be solved that the input current signal is still limited, and the common grounding design is combined with the control terminal, such as the CPU and the external noise surface. The terminal 'and the application to the larger generation can not capture the signal and the R4, zero in the first picture line, so the front-level isolation will be larger by the - conversion module, such as the current transformer configuration: the number = is smaller, or Can be generated by the resistor on the input side to achieve isolation
第6頁 1307580 五7發明說明（2) 效果，並解決電流 的複雜度與成本增 法共用’需分別獨 用。 【發明内容】 本發明之主要 .失存在，本發明以 ，搭配後極線性光 換裝置，改善其干 p性及增設轉換模組 簡單並縮小空間， 置。 為達上述之目 包括有： 濾波電路 加 立配 訊號輸入問題，但相對、生、 ’，同時該電流與電壓二：2路設S十亡 纪置，無、本恭歲輪入端子無 直無去兼具電壓與 、更凌訊號之應 目的，在於解決上述傳統 輸入侧電源獨立與簡單、失，避免缺 搞合％垆1¾ Μ ' k擇切換輸入源 耦口訊唬隔離設計架構， 擾訊號隔離致率，大雷頬比afl娩轉 t古布太h 大電流訊號源之適用 ，：成ί複雜電路’以提供電路佈線更 低廉但兩貫用性之類比訊號轉換隔離裝 的本發明之類比訊號轉換隔離裝置， 與一分壓電阻S?番Γ/、* J_A· -置X連接一訊號輸入側 訊號’由開關元件依 並將不同訊號源準位 一放大電路，接受濾波電路輸出 據輸入端電壓或電流訊號切換選擇， 統一輸出；Page 6 1307580 V7 invention description (2) The effect, and the solution to the complexity of the current and the cost-sharing sharing need to be used separately. SUMMARY OF THE INVENTION The main disadvantage of the present invention is that the present invention combines the post-polar linear optical switching device to improve its dryness and the addition of a conversion module to simplify and reduce the space. In order to achieve the above objectives, there are: filter circuit plus vertical signal input problem, but relative, raw, ', at the same time the current and voltage two: 2 road set S ten dead, no, this Gongnian wheel into the terminal is not straight The purpose of both the voltage and the Ling signal is to solve the above-mentioned traditional input side power supply independence and simplicity, loss, and avoid the lack of cooperation. 垆 k k k k 切换 切换 输入 输入 输入 输入 输入 输入 输入 输入 输入 输入 输入 输入 输入 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换The signal isolation rate, the large Thunder is more suitable than the afl delivery t-gubu too h large current signal source, the invention is: a complex circuit that provides a circuit wiring cheaper but two-way analog signal conversion isolation device The analog signal conversion isolation device is connected to a voltage dividing resistor S?pan//*J_A·-X to a signal input side signal 'by the switching element and the different signal source level to an amplifying circuit, and accepting the filtering circuit output data Input voltage or current signal switching selection, unified output;
一隔離電路，接收放大電路訊號進行 離訊號中之干擾雜訊； 訊號轉換，並 隔 一電壓隨耦電路 制端。 【實施方式】 將隔離後電壓訊號同相後輸出至控An isolation circuit receives the amplifying circuit signal for interference noise in the off-signal; the signal is converted, and is separated by a voltage-corresponding circuit terminal. [Embodiment] After the isolation, the voltage signals are in phase and output to the control.
第7頁 1307580 五、發明說明（3) 術内容及詳細說明，現配合圖式說 示，係本發明類比訊號轉換隔離 如圖所示：本發明之類比訊號轉 ，一放大電路2 ，一隔 兹有關本發明之技 明如下： 請參閱第二、三圖戶斤 裝置之電路架構示意圖。 換隔離裝置包括有：〜 離電路3及一電壓隨耦路 -電流源訊號及大電流1 ^路4，以構成一能應用於電壓、 離，同時提供更簡單,J源的類比訊號轉換’ u及接地隔 ^ Bi bl· ^ ^ 电路並縮小佈線空間，低廉但高實用 性之類比汛旒轉換隔離裝置。 ’二f電路1，連接-獨立之輸入側電源訊號，用以 降低則知連波，並配合一分流電阻R1，該分流電阻R1為 一精密低阻值大瓦特數的電阻元件，在大電流訊號源輸入 時，可=將大部份的大電流訊號源分流掉，使本發明能應 用於數安培（A)電流之類比訊號轉換，對於類比訊號轉換 ’具有改善擁取輪入電流訊號限制在幾個m A範圍之等問題 該放大電路2 ’係與上述之濾波電路輸出端連接，其 上具有一0P放大器2 1與一開關元件2 2所組成，以產生 _供同準位訊號源輸出’前述之〇p放大器2 1連接前述濾波 電路1接收輸出訊號V2，並由該開關元件（Switch ) 2 2 依據輸入端電壓與電流訊號為切換選擇，配合電阻元件” 3 = R 4產生匹配於電壓與電流源訊號之電壓訊號輸出， 、中該切換Switch 1-2端及Switch 2-3端之訊號輸入-輸 出準位放大率：Page 7 1307580 V. Description of the invention (3) The content and detailed description of the invention are now shown in conjunction with the schematic diagram. The analog signal conversion isolation of the present invention is as shown in the figure: the analog signal of the present invention is turned on, and the amplification circuit 2 is separated. The technical description of the present invention is as follows: Please refer to the schematic diagram of the circuit structure of the second and third figures. The isolation device includes: ~ off circuit 3 and a voltage follower-current source signal and a large current 1 ^ channel 4 to constitute a voltage, and can provide a simpler, J source analog signal conversion' u and grounding ^ Bi bl · ^ ^ circuit and reduce wiring space, low cost but high practicality analogy conversion converter. 'Two f circuit 1, connected - independent input side power signal, used to reduce the known wave, and with a shunt resistor R1, the shunt resistor R1 is a precision low resistance large wattage resistance element, at high current When the signal source is input, the majority of the large current signal source can be shunted off, so that the present invention can be applied to the analog signal conversion of the current of several amperes (A), and the analog signal conversion has improved the rounding current signal limitation. In a few m A range, the amplifying circuit 2' is connected to the output of the filtering circuit, and has an OPC amplifier 2 1 and a switching element 2 2 to generate a _ source signal source. The output 'the aforementioned 〇p amplifier 2 1 is connected to the filter circuit 1 to receive the output signal V2, and the switching element (Switch) 2 2 is switched according to the input terminal voltage and current signal, and the matching resistance element 3 = R 4 is matched. For the voltage signal output of the voltage and current source signals, switch the signal input-output level of the Switch 1-2 end and the Switch 2-3 end:
第8頁 1307580_ ‘圖式簡單說明 【圖式簡單說明】 第一圖係習知轉換電路示意圖。 第二圖係本發明一具體實施例之電路方塊圖。 第三圖係本發明一具體實施例之電路示意圖。 第四圖係本發明又一具體實施例之電路示意圖。 【主要元件符號說明】Page 8 1307580_ ‘Simple diagram of the diagram 【Simple description of the diagram】 The first diagram is a schematic diagram of a conventional conversion circuit. The second drawing is a block diagram of a circuit of a specific embodiment of the present invention. The third figure is a schematic circuit diagram of a specific embodiment of the present invention. The fourth figure is a circuit diagram of still another embodiment of the present invention. [Main component symbol description]
第11頁 濾 波 電 路 1 放 大 電 路 2 隔 離 電 路 3 電 壓 隨 柄 電 路 4 0P 放 大 器 2 1 開 關 元 件 2 2 丨比 較 器 3 1 類 比 光 耦 合 器 4 1 分 壓 電 阻 R1 可 變 電 阻 元 件 R7 電 阻 元 件 R2 、 R3 、 R4 、R5、 R6Page 11 Filter circuit 1 Amplifier circuit 2 Isolation circuit 3 Voltage with handle circuit 4 0P Amplifier 2 1 Switching element 2 2 丨 Comparator 3 1 Analog optical coupler 4 1 Voltage dividing resistor R1 Variable resistance element R7 Resistance element R2, R3 , R4, R5, R6