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HPH5-1200L Datasheet(PDF) 7 Page - Coilcraft lnc. |
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HPH5-1200L Datasheet(HTML) 7 Page - Coilcraft lnc. |
7 / 10 page Specifications subject to change without notice. Please check our website for latest information. Hexa-Path Magnetics Document 613-7 Document 613-7 Revised 08/20/15 Connecting primary windings in series When primary windings (Wpri) are connected in series, inductance increases, energy storage and Irms remain the same, but DCR increases and Isat decreases. Example: For HPH3-0138L, connect two primary windings in series: Inductance = Inductancetable × Wpri2 = 23.6 × 22 = 94.4 µH DCR = DCRtable × Wpri = 0.125 × 2 = 0.25 Ohms Isat = (Isattable × 6) ÷ Wpri = (0.42 × 6) ÷ 2 = 1.26 A Irms = Irmstable = 1.13 A Connecting secondary windings in parallel When secondary windings (Wsec) are connected in parallel, DCR decreases and Irms increases. Example: For HPH3-0083L, connect two secondary windings in parallel: DCR = 1 ÷ [Wsec × (1 ÷ DCRtable)] = 1 ÷ [(2 × (1 ÷ 0.125)] = 0.0625 Ohms Irms = Irmstable × Wsec = 1.13 × 2 = 2.26 A Create a 13 Watt 2 : 1 : 1 flyback transformer with a bias winding Choose HPH3-0138L Vin = 36 – 57 Vdc; Vout = 12 V, 1.1 A DCR Volt-time Peak energy Part Inductance max product storage Isat Irms number (µH) (Ohms) (V-µsec) (µJ) (A) (A) HPH3-0138L 23.6 ±20% 0.125 43.9 1.457 0.420 1.13 Formulas used to calculate electrical characteristics Connecting windings in series Inductance = Inductancetable × (number of windings)2 DCR = DCRtable × number of windings Isat = (Isattable × 6) ÷ number of windings connected in series Irms = Irmstable Connecting windings in parallel Inductance = Inductancetable DCR = 1 ÷ [number of windings × (1 ÷ DCRtable)] Isat = (Isattable × 6) ÷ number of windings connected in series Irms = Irmstable × number of windings 1 Pri Bias 2 3 12 11 10 9 4 Sec 5 6 7 8 Primary: L= 94.4 µH DCR= 0.25 sat= 1.26 A rms= 1.13 A I I Secondary: DCR= 0.0625 rms= 2.26 A I |
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