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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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EPR-91 датащи(PDF) 17 Page - Power Integrations, Inc. |
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EPR-91 датащи(HTML) 17 Page - Power Integrations, Inc. |
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17 / 36 page  7-Feb-2006 EP-91 12 V, 1 A, Universal Input Supply Page 17 of 36 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com BW 10.2 mm Bobbin Physical Winding Width M 1.00 1 mm Safety Margin Width (Half the Primary to Secondary Creepage Distance) L 2.00 2 Number of Primary Layers NS 7 7 Number of Secondary Turns DC INPUT VOLTAGE PARAMETERS VMIN 79 Volts Minimum DC Input Voltage VMAX 375 Volts Maximum DC Input Voltage CURRENT WAVEFORM SHAPE PARAMETERS DMAX 0.59 Duty Ratio at full load, minimum primary inductance and minimum input voltage IAVG 0.24 Amps Average Primary Current IP 0.5120 Amps Minimum Peak Primary Current IR 0.3075 Amps Primary Ripple Current IRMS 0.33 Amps Primary RMS Current TRANSFORMER PRIMARY DESIGN PARAMETERS LP 1050 uHenries Typical Primary Inductance. +/- 10% to ensure a minimum primary inductance of 954 uH LP_TOLERANCE 10.00 10 % Primary inductance tolerance NP 56 Primary Winding Number of Turns ALG 339 nH/T^2 Gapped Core Effective Inductance BM 2745 Gauss Maximum Operating Flux Density, BM<3000 is recommended BAC 824 Gauss AC Flux Density for Core Loss Curves (0.5 X Peak to Peak) ur 2053 Relative Permeability of Ungapped Core LG 0.11 mm Gap Length (Lg > 0.1 mm) BWE 16.4 mm Effective Bobbin Width OD 0.295 mm Maximum Primary Wire Diameter including insulation INS 0.05 mm Estimated Total Insulation Thickness (= 2 * film thickness) DIA 0.243 mm Bare conductor diameter AWG 31 AWG Primary Wire Gauge (Rounded to next smaller standard AWG value) CM 81 Cmils Bare conductor effective area in circular mils CMA 247 Cmils/Amp Primary Winding Current Capacity (200 < CMA < 500) TRANSFORMER SECONDARY DESIGN PARAMETERS Lumped parameters ISP 4.07 Amps Peak Secondary Current ISRMS 2.15 Amps Secondary RMS Current IRIPPLE 1.90 Amps Output Capacitor RMS Ripple Current CMS 430 Cmils Secondary Bare Conductor minimum circular mils AWGS 23 AWG Secondary Wire Gauge (Rounded up to next larger standard AWG value) VOLTAGE STRESS PARAMETERS VDRAIN 607 Volts Maximum Drain Voltage Estimate (Assumes 20% zener clamp tolerance and an additional 10% temperature tolerance) PIVS 59 Volts Output Rectifier Maximum Peak Inverse Voltage |
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