1756-L74

1756-L74

可以通過使用LDO穩(wěn)壓器保護LT8618免受高電壓偏移的影響，從而構(gòu)建一個的系統(tǒng)。在這種拓撲結(jié)構(gòu)中，LDO穩(wěn)壓器將調(diào)節(jié)到輸入電壓減去其壓差，而LT8618則以率將~24 V轉(zhuǎn)換為5 V或3.3 V。LDO穩(wěn)壓器的限流值應設置在通常的3.8 mA以下，同時還要保持率，并且LT8618的輸入電容基本上會使用去耦電容和儲能電容。這將支持在電流環(huán)路電流消耗小或無電流消耗的情況下，在后端短時間爆發(fā)高負載。由于高壓偏移比較短，通常攜帶的總能量較少，因此在這些瞬變期間，LDO穩(wěn)壓器中產(chǎn)生的功率損失不會影響整體效率；也就是說，LDO穩(wěn)壓器幾乎所有時間都處于高降壓比之下。

典型的電流環(huán)路會限制為整個遠程發(fā)送器供電的電源電路的輸入電流，LDO穩(wěn)壓器的可用負載電流不能超過該輸入限流值。另一方面，降壓穩(wěn)壓器可以使提供給負載的輸入電流成倍增加。圖3顯示了從24 V輸入電壓轉(zhuǎn)換為5.5 V輸出時LT8618穩(wěn)壓器的輸出電流與輸入電流的關(guān)系。對于3.8 mA的輸入限流值，輸出電流差不多為15 mA。這部分額外的電力可增加操作余量和啟用額外功能單元，簡化了系統(tǒng)設計人員的工作。

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ALLEN BRADLEY 1336F-BRF100-AA-EN NSFP 1336FBRF100AAEN

Allen Bradley 1336F-BRF100-AE-EN Series A

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Allen Bradley Plus II Drive Cat 1336F-BRF100-AA-EN Used

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ALLEN-BRADLEY 1336F BOARD 74101-212-51 MS110314 USED.

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ALLEN BRADLEY 1336F-BRF30-AE-FR-L5-HCS2 NSFP 1336FBRF30

Allen Bradley 1336F-BX040-AA-EN 40hp AC drive amp 

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ALLEN BRADLEY 1336F-LA2 *NIB*

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ALLEN BRADLEY 1336F-CWF20-AN-EN-HASP-L4 NSFP 1336FCWF20

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