NI PXIe-2790功率組合器和開關(guān)模塊
1.產(chǎn) 品 介 紹
品牌：NI
型號(hào)：NI PXIe-2790
產(chǎn)品說(shuō)明：功率組合器和開關(guān)模塊
優(yōu)勢(shì)：供應(yīng)進(jìn)口原裝正品，專業(yè)停產(chǎn)配件。
2.產(chǎn) 品 詳 情 資 料：
NI PXIe-2790使用公式平均功耗=電壓降x電流消耗（以安培為單位）x接通時(shí)間百分比（以十進(jìn)制表示）：1.5 x 1.0 x 0.10=0.15瓦每個(gè)螺線管然后將此結(jié)果乘以2，因?yàn)槲覀冇袃蓚€(gè)相同的螺線管：0.15瓦x 2個(gè)螺線管=0.30瓦兩個(gè)螺線管的總功率。在本示例中，該16點(diǎn)模塊上的其他14個(gè)輸出點(diǎn)操作操作員面板上的指示燈。每個(gè)指示燈需要0.05安培的電流。7個(gè)指示燈100%亮起，7個(gè)預(yù)計(jì)40%亮起。NI PXIe-2790對(duì)于100%時(shí)間亮起的7盞燈：1.5 x 0.05 x 1.00=0.075瓦每盞燈然后將該值乘以7:0.075瓦x 7盞燈=前7盞燈的總功耗0.525瓦對(duì)于40%時(shí)間亮起7盞燈：1.5x 0.05 x 0.40=.03瓦每盞燈接著將該值除以7:0.03瓦x 7燈=其他7盞燈的功耗0.21瓦相加單獨(dú)計(jì)算，我們得到：0.30+0.525+0.21=1.035瓦，用于模塊的總輸出計(jì)算NI PXIe-2790
Use the formula Average Power Dissipation = Voltage Drop x Current Draw (in Amps) x Percent (expressed as a decimal) of on-time: 1.5 x 1.0 x 0.10 = 0.15 watts per solenoid Then multiply this result by 2 since we have two identical solenoids: 0.15 watts x 2 Solenoids = 0.30 watts total for the two solenoids Also in this example, the other 14 output points on this 16-point module operate pilot lights on an operator’s panel. Each pilot light requires .05 Amps of current. NI PXIe-2790Seven of the pilot lights are on 100% of the time and seven are on an estimated 40%. For the 7 lights that are on 100% of the time: 1.5 x .05 x 1.00 = 0.075 watts per light Then multiply this value by 7: 0.075 watts x 7 lights = 0.525watts total dissipation for the first 7 lights For the 7 lights that are on 40% of the time: 1.5 x .05 x 0.40 = .03 watts per light Then multiply this value by 7: 0.03 watts x 7 lights = 0.21 watts total dissipation for the other 7 lights Adding up the individual calculations, we get: 0.30 + 0.525 + 0.21 = 1.035 watts for the module’s total output calculationNI PXIe-2790
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