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MOR283R3D Datasheet(PDF) 4 Page - Interpoint Corporation Company |
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MOR283R3D Datasheet(HTML) 4 Page - Interpoint Corporation Company |
4 / 24 page Paralleling (Share Pin) By using the Share pin, up to five single or dual converters may be paralleled for a total output power of up to 540 watts, depending on model. To calculate available power, multiply the number of converters (up to five) by their maximum output power. Multiply the result by 90% for total available power. See Figure 8 for the internal circuit. The converters will share within 10% of each other at 25% to 90% rated power. MOR converters feature true n+1 redundancy for reliability in critical applications. See Figure 9 for the proper connections. All Positive Outputs and Positive Senses should be connected to a common point. All Negative Outputs and Sense Returns should be connected to a common point. The Share pin is referenced to Sense Return. Leave the share pin floating (unconnected) if not used. Also see Figure 9. PoSitiVe SenSe, SenSe return A special remote sensing feature maintains the desired output voltage at the load. See Figure 9. When this feature is not used, connect the sense lines to their respective output terminals. See Figure 10. Remote sensing is available on single output models only. Do not exceed 110% of Vout and do not exceed maximum output power. inCreaSe outPut Voltage by StaCking outPutS Outputs may be stacked to increase the output voltage using a dual model. Dual outputs may be stacked to double the output voltage. See Figure 11. – + Load Positive Input 1 7 8 9 Input Common Positive Output Inhibit 2 Output Common Negative Output MOR Dual Output 2 Figure 11: StaCked outPutS – dual model – + Positive Input 1 6 5 2 7 10 11 9 8 7 10 11 9 8 7 10 11 9 8 Sync In Sync Out Input Common Positive Output Positive Sense Share Sense Return Output common Positive Output Positive Sense Sense Return Output common Positive Output Positive Sense Sense Return Output common Share Share Load 28V Positive Input 1 6 5 2 Sync In Sync Out Input Common Positive Input 1 6 5 2 Sync In Sync Out Input Common Figure 9: Paralleling – + Load Positive Input 1 6 4 2 7 10 12 9 8 28V Sync In Inhbit 1 Input Common Positive Output Positive Sense Inhibit 2 Sense Return Output Common MOR Single Output – + Load Positive Input 1 6 4 2 7 12 8 9 28V Sync In Inhbit 1 Input Common Positive Output Inhibit 2 Output Common Negative Output MOR Dual Output Load 0 Figure 10: tyPiCal ConneCtionS Share Sense Return 260 k 10 k Figure 8: Share Crane Aerospace & Electronics Power Solutions Mor single and dual dc/dc converters 28 Volt input – 120 Watt www.interpoint.com Page 4 of 24 MOR Rev K - 20100422 |
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