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DER-41 Datasheet(PDF) 11 Page - Power Integrations, Inc. |
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DER-41 Datasheet(HTML) 11 Page - Power Integrations, Inc. |
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11 / 22 page  DER-41 5V and 22V LCD TV Standby PS November 18, 2004 9 Transformer Spreadsheets ACDC_TNY-II_040104; Rev.1.1; Copyright Power Integrations Inc. 2004 INPUT OUTPUT UNIT ACDC_TNYII_040104_Rev1-1.xls; TinySwitch-II Continuous/Discontinuous Flyback Transformer Design Spreadsheet ENTER APPLICATION VARIABLES VACMIN 80 Volts Minimum AC Input Voltage VACMAX 288 Volts Maximum AC Input Voltage fL 50 Hertz AC Mains Frequency VO 5 Volts Output Voltage PO 4 Watts Output Power n 0.7 Efficiency Estimate Z 0.5 Loss Allocation Factor tC 3 mSecond s Bridge Rectifier Conduction Time Estimate CIN 20 uFarads Input Filter Capacitor ENTER TinySwitch-II VARIABLES TinySwitch-II TNY26 3 Universal 115 Doubled/230V Chosen Device Power Out 4.7W 7.5W ILIMITMIN 0.195 Amps TinySwitch-II Minimum Current Limit ILIMITMAX 0.225 Amps TinySwitch-II Maximum Current Limit fS 132000 Hertz TinySwitch-II Switching Frequency fSmin 120000 Hertz TinySwitch-II Minimum Switching Frequency (inc. jitter) fSmax 144000 Hertz TinySwitch-II Maximum Switching Frequency (inc. jitter) VOR 74 Volts Reflected Output Voltage VDS 12 12 Volts TinySwitch-II on-state Drain to Source Voltage VD 0.56 Volts Output Winding Diode Forward Voltage Drop KP 0.68 Ripple to Peak Current Ratio (0.6<KRP<1.0 : 1.0<KDP<6.0) ENTER TRANSFORMER CORE/CONSTRUCTION VARIABLES Core Type EE16 Core P/N: PC40EE16-Z Bobbin P/N: BE-16-118CPH AE 0.192 cm^2 Core Effective Cross Sectional Area LE 3.5 cm Core Effective Path Length AL 1140 nH/T^2 Ungapped Core Effective Inductance BW 8.5 mm Bobbin Physical Winding Width M mm Safety Margin Width (Half the Primary to Secondary Creepage Distance) L 2 Number of Primary Layers NS 8 Number of Secondary Turns DC INPUT VOLTAGE PARAMETERS VMIN 94 Volts Minimum DC Input Voltage VMAX 407 Volts Maximum DC Input Voltage CURRENT WAVEFORM SHAPE PARAMETERS DMAX 0.47 Maximum Duty Cycle IAVG 0.06 Amps Average Primary Current Page 11 of 22 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com |
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