R2U1N1D0C0T0A驅(qū)動器
.組合代換
組合代換就是把同一型號的多塊IC內(nèi)部未受損的電路部分，重新組合成一塊完整的IC，用以代替功能不良的IC的方法。對買不到原配IC的情況下是十分適用的。但要求所利用IC內(nèi)部完好的電路一定要有接口引出腳。
非直接代換關(guān)鍵是要查清楚互相代換的兩種IC的基本電參數(shù)、內(nèi)部等效電路、各引腳的功能、IC與外部元件之間連接關(guān)系的資料。實(shí)際操作時予以注意：
⑴集成電路引腳的編號順序，切勿接錯；
⑵為適應(yīng)代換后的IC的特點(diǎn)，與其相連的外圍電路的元件要作相應(yīng)的改變；
⑶電源電壓要與代換后的IC相符，如果原電路中電源電壓高，應(yīng)設(shè)法降壓；電壓低，要看代換IC能否工作。
⑷代換以后要測量IC的靜態(tài)工作電流，如電流遠(yuǎn)大于正常值，則說明電路可能產(chǎn)生自激，這時須進(jìn)行去耦、調(diào)整。若增益與原來有所差別，可調(diào)整反饋電阻阻值；
⑸代換后IC的輸入、輸出阻抗要與原電路相匹配；檢查其驅(qū)動能力。
⑹在改動時要充分利用原電路板上的腳孔和引線,外接引線要求整齊，避免前后交叉，以便檢查和防止電路自激，特別是防止高頻自激;
[7]在通電前電源Vcc回路里再串接一直流電流表，降壓電阻阻值由大到小觀察集成電路總電流的變化是否正常。
| R2U0N1P0A1T0A |
| R2U0N1N1B1T0A |
| R2U0N1N1A1T0A |
| R2U2N1C1B1T2A |
| R2X0N1B0A1T0A |
| R2X2N1D1B2T0A |
| R2X4N1S1B2T0A |
| R2X4N1S0B2T0A |
| R2X2N1S0B2T0A |
| R2X4N1D1A2T1A |
| R2X2N1C1A1T1A |
| R2X0N1B1A1T0A |
| R2X1N1S0B1T0A |
| R2X1N1S1B1T0A |
| R2X2N1C1B2T0F |
| R2X2N1B0B2T0A |
| R2X2N1S1B2T0A |
| R2X0N1S1B1T0A |
| R2U1N1D0C0T0A |
| R2X2N1D0B2T0A |
| R2U2N1C1A1T1A |
| R2X0N1S0B1T0A |
| SSLKEY-GED |
| SSLKEY |
| KEY M5 |
| IC758CSWA10PC128 |
| IC760COW12CDA |
| IC760COW15CDA |
| IC760CSW12CDA |
| IC760CSW15CDA |
| IC760CSW19CDA |
| IC760CSW24CDA |
| IC756NSW07IM |
| IC758RSWC24PCX512 |
| IC758RSWC24PCX256 |
| IC758RSWC24PCX128 |
| IC758RSWC19PCX512 |
| IC758RSWC19PCX256 |
| IC758RSWC19PCX128 |
| IC758RSWC15PCX512 |
| IC758RSWC15PCX256 |
| IC758RSWC15PCX128 |
| IC758RSWC12PCX512 |
| IC758RSWC12PCX256 |
| IC758RSWC12PCX128 |
| IC758RSWB24PCX512 |
| IC758RSWB24PCX256 |
| IC758RSWB24PCX128 |
| IC758RSWB19PCX512 |
R2U1N1D0C0T0A驅(qū)動器
繼電保護(hù)的技術(shù)發(fā)展，與電子、信息、通信等技術(shù)的發(fā)展密不可分。未來，隨著電子式CT(電流互感器)和PT(電壓互感器)，的逐步應(yīng)用、IEC61850標(biāo)準(zhǔn)化規(guī)約的進(jìn)一步完善，可以預(yù)見，數(shù)字化技術(shù)將得到更加廣泛的應(yīng)用。國內(nèi)已有110千伏、220千伏電壓等級的電子式CT、電子式PT投入試運(yùn)行，研發(fā)適用于電子式CT和PT的繼電保護(hù)設(shè)備，將推動繼電保護(hù)技術(shù)的發(fā)展，帶動繼電保護(hù)新原理、新技術(shù)和新應(yīng)用的變革，成為擺在繼電保護(hù)科研人員面前的新課題。
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| R88M-K40030T-Z |
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