最近还是翻译电源管理芯片SC1404的内容.感觉专业英语真的好难翻译.很多时候语不达意.
希望高手不吝赐教,谢谢
虽然说翻译出来了,但是别扭的很,而且没有表达出应有的意思出来.到现在,我也没真正搞清楚这段英语的意思.
原文:
Gate Drive / Control
The gate drivers on the SC1404 are designed to switch large mosfets. The high-side gate driver must drive the gate of high-side mosfet above the V+ input. The supply for the gate drivers is generated by charging a boostrap capacitor from the VL supply when the low-side driver is on. In continuous conduction mode, the low-side driver output that controls the synchronous rectifier in the power stage is on when the high-side driver is off. Under light
load conditions when PSAVE# pin is low, the inductor ripple current will approach the point where it reverses polarity. This is detected by the low-side driver control and the synchronous rectifier is turned off before the current reverses, preventing energy drain from the output. The low-side driver operation is also affected by various fault conditions as described in the Fault Protection section.
我的翻译:
SC1404的门驱动设计于开关大功率场效应管.高边门驱动必须能够驱动电压输入超过V+的高边MOSFET.门驱动电压由VL对升压电容充电产生,充电发生在低边驱动开启时候.在持续传导模式,当高边驱动关闭时,低边驱动输出打开.低边驱动控制电源的同步校正.在轻负载条件下,PSAVE#管脚处于低电平,感应纹波电流将逼近于反极性的那个点.这被低边驱动检测到,在电流反向之前,同步校正器将被关闭,避免能量浪费.低边驱动也受出错保护部分描述的各种出错情况影响.
