现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2015年
16期
152-155
,共4页
反激式开关电源%UCC28910%AC/DC电源%高压启动
反激式開關電源%UCC28910%AC/DC電源%高壓啟動
반격식개관전원%UCC28910%AC/DC전원%고압계동
flyback switching power supply%UCC28910%AC/DC power supply%hith-voltage start
介绍了基于UCC28910的5 V/1.2 A隔离反激式开关电源.电路结构简单,所需外部元件较少,有效减少了电路板占用面积.电源可实现AC 85~265 V宽电压输入,在无需光耦合器的情况下实现恒定电压与恒定电流输出.具有700 V高压启动和小于30 mW待机功耗的特点.采用DCM模式减少开关损耗,符合Energy StarEPS 2.0标准.
介紹瞭基于UCC28910的5 V/1.2 A隔離反激式開關電源.電路結構簡單,所需外部元件較少,有效減少瞭電路闆佔用麵積.電源可實現AC 85~265 V寬電壓輸入,在無需光耦閤器的情況下實現恆定電壓與恆定電流輸齣.具有700 V高壓啟動和小于30 mW待機功耗的特點.採用DCM模式減少開關損耗,符閤Energy StarEPS 2.0標準.
개소료기우UCC28910적5 V/1.2 A격리반격식개관전원.전로결구간단,소수외부원건교소,유효감소료전로판점용면적.전원가실현AC 85~265 V관전압수입,재무수광우합기적정황하실현항정전압여항정전류수출.구유700 V고압계동화소우30 mW대궤공모적특점.채용DCM모식감소개관손모,부합Energy StarEPS 2.0표준.
The design of 5 V/1.2 A isolated flyback switching power supply based on UCC28910 is introduced. Its circuit structure is simple and fewer external components are required,which reduces the area occupied by PCB effectively. The power supply can accepts a wide range voltage input of 85 VAC to 265 VAC. The constant voltage and current output was realized without any opto-coupler. This device has characteristics of 700 V high-voltage start and less than 30 mW standby power loss. DCM mode is used to reduce the switching loss,which is consistent with the standard of Energy Star EPS2.0.
