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1. 发明公开

KR20070077341A POWER SUPPLY DEVICE 审中-公开
标题翻译：电源设备
公开(公告)号：KR20070077341A
公开(公告)日：2007-07-26
申请号：KR20060006862
申请日：2006-01-23
申请人： SAMSUNG ELECTRONICS CO LTD
发明人： LEE SANG TAEK
IPC分类号： H02M5/40 , H02M7/155
CPC分类号： H02M7/062
摘要： A power supply device is provided to sense an over-voltage and protect circuits from the over-voltage by comparing an external voltage with a reference voltage. A power supply device includes a rectification unit(4,14) for rectifying AC power and a smoothing unit(8,16) for smoothing the rectified voltage. An over-voltage protection circuit(5,15) determines an over-voltage state of the rectified voltage. The over-voltage protection circuit interrupts an over-voltage before the over-voltage is applied to the smoothing unit when the rectified voltage is determined as the over-voltage. The over-voltage protection circuit includes a voltage distribution unit for distributing the rectified voltage, a voltage comparator for comparing an output voltage of the voltage distribution unit with the reference voltage, and a driving voltage generator for generating a driving voltage.
摘要翻译：提供电源装置以通过将外部电压与参考电压进行比较来感测过电压并且保护电路免受过电压的影响。电源装置包括用于整流AC电力的整流单元（4,14）和用于平滑整流电压的平滑单元（8,16）。过压保护电路（5,15）确定整流电压的过压状态。当整流电压被确定为过电压时，过电压保护电路在过电压施加到平滑单元之前中断过电压。过电压保护电路包括用于分配整流电压的电压分配单元，用于将电压分配单元的输出电压与参考电压进行比较的电压比较器，以及用于产生驱动电压的驱动电压发生器。

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