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          Silicon power introduces SP5221F+SP5420 no strobe, low THD 18W LED lighting scheme

          writer:admin date:2017-08-22

          Scheme performance

          Input voltage: 90VAC-265VAC full voltage

          Output power: 18W, 40V/450mA

          Average efficiency: >85%

          Constant current accuracy <

          Safety certification

          Power factor: >0.9

          THD:<15%

          QR Valley level switching improves conversion efficiency

          LED light flashes without power frequency

          EMI radiation and conduction meet the standard requirements of EN55015

          AC insulation meets 3.75KV, duration 60s, leakage current less than 3mA


          Application schematics and performance indicators
          原 理 圖
          Application scheme physical map
          實 物 圖
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