開關電源保護電路的研究

摘要：開關電源保護電路關系到電源的安全性和可靠性。本文較系統地研究了開關電源的防浪涌電流的軟啟動，防過壓、欠壓、過熱、過流、短路、缺相等保護電路。并研究各種保護電路的綜合應用及其注意事項。為開關電源的設計和保障開關電源安全可靠工作提供了經驗。 敘詞：開關電源；保護電路；安全性；可靠性 Abstract：Safeguard circuit in switches power supply is of vital importance to the safety and reliability of source. It is researched that surge current、over voltage、owe voltage、over heat、over current、short circuit、off phase safeguard circuit etc in switches power supply.
Multipurpose use and matters needing attention of each safeguard circuit is researched too. The
experience is provided for deign and safety work of switches power supply. Keyword：Switches power supply；Safeguard circuit；Safety；Reliability