基于矿用变频器使用的开关电源设计与调试技巧
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摘要
叙述1140V电压等级矿用变频器用的开关电源设计与调试,采用单端反激式拓扑结构,实现AC220V输入,+24V、±15V、+15V三相电源相互隔离输出;开关变压器温升要小于45℃,其它元器件温升小于20℃;纹波电压小于50mV。以适应具有热地检测矿用变频器用开关电源。
This paper describes the design and debugging of switching power supply for 1140 V voltage grade mine inverter,adopts single-ended flyback topology to realize AC220 V input, +24 V, ±15 V, +15 V three-phase power supply isolated output from each other. The temperature rise of switching transformer should be less than 45 ℃, the temperature rise of other components is less than 20 ℃ and the ripple voltage is less than 50 mV, so as to adapt to the switching power supply for thermal detection of mine frequency converters.
This paper describes the design and debugging of switching power supply for 1140 V voltage grade mine inverter,adopts single-ended flyback topology to realize AC220 V input, +24 V, ±15 V, +15 V three-phase power supply isolated output from each other. The temperature rise of switching transformer should be less than 45 ℃, the temperature rise of other components is less than 20 ℃ and the ripple voltage is less than 50 mV, so as to adapt to the switching power supply for thermal detection of mine frequency converters.
引文
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[2]童诗白,华成英.模拟电子技术基础(第三版)[M].高等教育出版社.
[3]开关电源技术(第三版)[M].王志强,肖文勋,虞龙,译.电子工业出版社.
[4]沙占友,王彦朋,安国臣,等.开关电源设计-入门与实例解析[M].中国电力出版社.