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LH25-10B03 Datasheet(PDF) 5 Page - MORNSUN Science& Technology Ltd. |
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LH25-10B03 Datasheet(HTML) 5 Page - MORNSUN Science& Technology Ltd. |
5 / 8 page AC/DC Converter LH20(25) Series 2015.08.24-B/3 Page 5 of 8 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation 2. EMC solution-recommended circuit ACDC AC(N) AC(L) LCM MOV1 CX CY1 CY2 FUSE AC(N) AC(L) +Vo -Vo + LDM C1 C2 TVS1 RL Can use MORNSUN s FC-LX1D ' Fig 5: EMC Recommended circuit with higher requirements Element model Recommended value MOV1 S14K300 CY1 , CY2 1000pF/400VAC CX 0.1μF/275VAC LCM 10mH, recommended to use MORNSUN’s FL2D-Z5-103 LDM 4.7μH/2A FC-LX1D 2KV/4KV EMC filter FUSE 3.15A/250V slow fusing, necessary 3. Application of Trim and calculation of Trim resistance 0V R2 R1 R3 Vref RT Trim +Vot 0V R2 R1 R3 Vref RT Trim +Vot Trim up Trim down Applied circuits of Trim (Part in broken line is the interior of models): Calculation formula of Trim resistance: up: a= Vref Vot-Vref R1 R = T aR2 R -a 2 -R3 down: a= Vref Vot-Vref R2 R = T aR1 R -a 1 -R3 RT is Trim resistance a is a self-defined parameter, with no real meaning. Vout R1(KΩ) R2(KΩ) R3(KΩ) Vref(V) Vot(V) 3.3V 3.3 1.98 1 1.24 Output voltage after regulation, variation ≤ ±10% 5V 3.3 3.3 1 2.5 9V 7.5 2.87 1 2.5 12V 3.83 1 1 2.5 15V 7.5 1.5 1 2.5 24V 8.66 1 1 2.5 48V 68 3.73 1 2.5 4. For more information about Mornsun EMC Filter products, please visit www.mornsun-power.com to download the Selection Guide of EMC Filter |
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