| AO204/SI |
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價(jià)格：800 元(人民幣) | 產(chǎn)地：德國 |
| 最少起訂量：1個(gè) | 發(fā)貨地：福建廈門 | |
| 上架時(shí)間：2018-09-07 16:30:46 | 瀏覽量：460 | |
廈門光沃自動(dòng)化設(shè)備有限公司
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| 經(jīng)營模式：經(jīng)銷商 | 公司類型：其他有限責(zé)任公司 | |
| 所屬行業(yè)：PLC控制系統(tǒng) | 主要客戶：全國市場 | |
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| 聯(lián)系人:吳 (先生) | 手機(jī):18030229050 |
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| 郵箱:1878187406@qq.com | 地址:廈門市海滄區(qū)滄湖東一里海景奧斯卡 |
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AO204/SI AO204/SI AO204/SI
《聯(lián)系人；歐先生》 從工業(yè)領(lǐng)域到建筑工程，簡單易用的開關(guān)模式電源非常常見。直流電壓隨后被緩沖至電池，成為隨時(shí)可用的安全電力供給。事實(shí)如此簡單嗎？ 工頻電源工作總是離不開變壓器。輸出的直流電，不管是調(diào)節(jié)的還是未調(diào)節(jié)的，都是首先在次級產(chǎn)生的。相比之下，開關(guān)電源是首先在初級進(jìn)行整流，然后產(chǎn)生的直流電壓被分割為高頻，并通過一個(gè)小的高頻變壓器被傳送到次級（圖2）。開關(guān)電源允許寬范圍的輸入，還允許負(fù)載電流在0-100%的額定范圍內(nèi)連續(xù)工作。
圖2: 無輸入濾波器的開關(guān)電源原理圖 在思考開關(guān)電源的輸入電路原理時(shí)，首先注意到的就是整流器。如果輸入不是交流電，而是直流電，將會(huì)發(fā)生什么？假設(shè)所有模塊都能“準(zhǔn)確”運(yùn)行，那么幾乎所有開關(guān)電源都可以直流電或者交流電輸入。然而，當(dāng)發(fā)生故障，一臺(tái)不適用于直流電輸入的開關(guān)電源，很有可能導(dǎo)致火災(zāi)，因?yàn)樘幚砀邏褐绷麟姳绕鹛幚斫涣麟娨ｋU(xiǎn)得多。 RELIANCE ELECTRIC AUXILIARY CONTACT KIT K-607 K607 NEWAB RELIANCE ELECTRIC 500 HP AC DRIVE 608 AMPS 480 V #1 RELIANCE ELECTRIC TACH CONTROL BOARD 0-54355 reliance electric Variable Frequency Drive VTAC 15hp Reliance Electric HR2000 BLA-04 AC Servo drive 3RA2001 Reliance Electric HR2000 BLA-08 AC Servo drive 3RA2002 RELIANCE ELECTRIC (437162) PLC MODULE NIB RELIANCE ELECTRIC (437162 -R) PLC MODULE NIB Reliance Electric Remote I/O Interface 45C37A Reliance Electric 9 Slot Rack # 45C918 RELIANCE ELECTRIC 14C229 Master Isolated Ref Receiver RELIANCE ELECTRIC (437162 -X) PLC MODULE NIB Reliance Electric 0-52850 IRFA Drive Card New RELIANCE ELECTRIC 2GU41005 AC VS DRIVE GP-2000 5 HP Reliance Electric Induction AC Servo VZ3000 UVZ3202 OPC RELIANCE ELECTRIC 14C228 FIELD SUPPLY KIT NIB Reliance Electric Shark Programmer # 45C951 RELIANCE ELECTRIC 2DB2005 AC DRIVE 2DB2005 Reliance Electric 109081-102-W Card 109081102W NEW RELIANCE ELECTRIC 610266-29R MAXPAK III FIELD SUPPLY Reliance Electric Drive Board 8042510B 804.25.10B Reliance Electric Drive Controller 57406 Reliance Electric 8K Memory # 45C270 0702-03-015 ELECTRO-CRAFT E702 RELIANCE ELECTRIC MOTOR NEW RELIANCE ELECTRIC 0-52860-2 VSAC INVERTER ANALOG Reliance Electric 410403-24AWL Thyristor 41040324AWL RELIANCE ELECTRIC POWER SUPPLY MODULE 0-51903-A Reliance Electric 0-52712 115VAC Output Module 31C60A reliance electric 2-hp motor drive 460-v 60hz ac new BOX 8 RELIANCE ELECTRIC MOTOR BRUSH 404844-AU 404844AU Reliance Electric Drive Board 8041510A 804.15.10A LOT OF 4 RELIANCE ELECTRIC RESISTOR 63481XZA 8526 NEW Reliance Electric A40 Control Processor 45C410A 45C410 Reliance Electric Remote I/O Processor # 45C201 LNC Reliance Electric 4RC033 Encoder Cable NEW RELIANCE ELECTRIC 57410 ISOLATED ANALOG OUTPUT DCS MDL Reliance Electric 45C-201C/45C201?C I/O Processor RELIANCE ELECTRIC 1AC2003 AC VS DRIVE 3HP 3PHASE Reliance Electric 6 Slot Rack # 45C913 Reliance Electric 405919-43AW Diode 40591943AW NEW Reliance Electric Minipak Plus 14C13 5HP AC Drive Reliance Electric Shark Prog. 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