过载保护测试.doc

1.0 PURPOSE (目的) ： 1.1 All outputs shall be protected against short circuit (to Ground or to other outputs) or over load conditions. No damage shall result. 1.1當有短路( 指對地短路或相臨輸出腳位短路時)或過載情形發生時, 待測機台需能 自我保護, 且不能有任何損害. 2.0 SCOPE (範 圍)： 2.1This test describes the Over Load protection test required for all Phihong power products. 2.1對所有飛宏電源產品都須經過此測試。 3.0 SPECIFICATIONS (規格)： 3.1The output voltage become overload, the power supply will be latched off within 20ms. When total power exceed 120% of maximum load, the power supply must shut down. The power supply returns to normal operation when AC power is recycled and the overload condition is no longer present. 3.1 當輸出電壓成為過載時, 電源供應器需在 20ms 內 latched off, 並在輸出總負 載超過 120%時, 電源供應器需應自動 shut down. 當輸入電源重新起動且過載 原因不存在時, 電源供應器應回復正常操作. NOTE: When this specification conflicts which Phihong product specification the Phihong product specification take precedence in all respects. 備註: 當這份規範與飛宏產品規格書所規定的規格有所抵觸時, 以飛宏產品 規格書所規定的規格為準. 4.0 TEST EQUIPMENT (測試設備)： 4.1 Electronic Load 4.1 電子負載 4.2 Digital Multimeter 4.2 數位電表 4.3 Line Voltage/Frequency convertor. 4.3 變頻器 . 4.4 Storage scope. 4.3 儲存式示波器. 5.0 CONDITIONS：(測試條件) 5.1. AC Line input : Nominal Line (115V) AC 輸入電壓 115 Vac. 5.2 Output Load: Max Load, 5.2 輸出負載: 全載 5.3 Ambient Temperature: Nominal 5.3 環境溫度: 室溫 PROCEDURE (測試程序) The power supply shall use electronic circuit to limit the output current against the Excessive output current or protected against excessive power delivery due to short circuit of any output and over total power. 當輸出端短路或輸出總瓦特數超過其限制時,待測物(電源供應器)應利用其本身的電路特性來限制其輸出電流增加, 以達到保護效果. 7.0 ACCEPTANCE CRITERIA: (判定) 7.1. The power supply may cease to operate ; If there is any abnormal DC output current comes out, the power supply shut down automatically and reduce output current immedia