LED电源的短路保护电路设计
LED전원적단로보호전로설계
Design of the Short-Circuit Protection Circuit in LED Power Supply
  • 万方数据
    机电工程技术 궤전공정기술
    MACHANICAL & ELECTRICAL ENGINEERING TECHNOLOGY
    2013年 5期 71-73 ,共3页

    胡春%肖国龙%龚正平%武果%郭壮龙

    호춘%초국룡%공정평%무과%곽장룡

    PWM控制芯片%LED电源%短路保护%电路 PWM控製芯片%LED電源%短路保護%電路
    PWM공제심편%LED전원%단로보호%전로
    PWM control chip%LED power supply%short-circuit protection%circuit
    利用PWM控制芯片普遍具有的VCC欠压关断功能，提出了短路/过流时降低VCC电压来保护LED电源的电路，设计了两种短路保护电路，成本低，可降低VCC电压或直接关断PWM控制芯片的PWM输出。
    이용PWM공제심편보편구유적VCC흠압관단공능，제출료단로/과류시강저VCC전압래보호LED전원적전로，설계료량충단로보호전로，성본저，가강저VCC전압혹직접관단PWM공제심편적PWM수출。
    In general,PWM control chip is shut down in case of VCC undervoltage. According to this feature, the short-circuit or over current protection circuit in LED power supply has been proposed in this paper. By means of reducing VCC voltage or turning off the PWM output, the two Low-cost short-circuit protection circuits have been designed.
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