Designing a Power Supply with Multiple Input Options

• 来源期刊: 电源世界
• 学科: 工学
• 关键词: 裂牙
• 年，卷（期）: dysjb_2002,（6）
• 页码范围: 12
• 页数: 2页
• 分类号: TN86

摘要

Some electronic systems such as field communications equip-ment must be able to operate from a variety of power sources,forexample,worldwide universal AC (85—264V rms) or vehicle bat-tery power. These systems may also require backup power in casethe primary source is interrupted.The illustration shows a power supply that can operate fromthe AC line,from a 12V or 24V vehicle battery,or from an internal48V backup battery. For AC line use, a front end module accepts a