40W以上恒压方案（外置供电）?方案1：OB6563+OB2203http://skybright.21dianyuan.com90W19V/4.73A Demo-OB6563+2203OB2203?????待机功耗(0.28W@ 264VAC)平均效率88.28%@ 90-260VAC轻载时关闭PFC节省待机功耗PF 值0.984@ 230VAC 满载精准输出OVP (ΔVovp/Vovp<5%)http://skybright.21dianyuan.com40W以上恒压方案（外置供电）?方案2：OB6663 (PWM + PFC 二合一）http://skybright.21dianyuan.com90W19V/4.73A Demo –OB6663?????待机功耗(0.28W@ 264VAC)平均效率88.28%@ 90-260VAC轻载时关闭PFC节省待机功耗PF 值0.984@ 230VAC 满载精准输出OVP (ΔVovp/Vovp<5%)http://skybright.21dianyuan.com联络方式石亮Lion ShiMobile:15815572846TEL:0755-83338123-816FAX:0755-83331865E-mail：stone_0802@163.comE-mail：15815572846@163.comhttp://skybright.21dianyuan.com/http://skybright.21dianyuan.com
LED电源方案-天晖电子 - 图文
40W以上恒压方案（外置供电）?方案1：OB6563+OB2203http://skybright.21dianyuan.com90W19V/4.73ADemo-OB6563+2203OB2203?????待机功耗(0.28W@264VAC)平均效率88.28%@90-260VAC轻载时关闭PFC节省待机功耗PF值0.984@230VAC满载精准输出OVP(ΔVovp/Vovp
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