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guard ring 護圈;防止戒指脫落的指環。

guard room

If the node is at , or near to , ground then a grounded guard ring will be appropriate , if it is at some other potential it may be necessary to use a high input impedance buffer amplifier , with its input connected to the node , to force the guard ring to the node potential 如果被保護的節點的電位是(或接近)零電位,采用地線保護環最為合適;如果節點電位是其他值,那么可以用高輸入阻抗放大器組成緩沖器,輸入端連接該節點,輸出端連接保護環。

Key be flame rings may release 23 instructors to learn skills - agni incantations ; be guard rings lives in the most dangerous time to save a life - rings will be broken 得到火焰戒指可以施放23級導師學習技能烈火咒得到守護戒指可以在生命最危險的時候救一命戒指將破碎。

In applications where high impedances and very low currents are involved a guard ring may be used to minimize the effects of low insulation resistance 保護環用在那些高阻抗或電流非常微弱的電路中,用于減輕因絕緣電阻不夠高而產生的(漏電)問題。

It is obvious that , in general , guard rings should be on both sides of the pcb with plated - through holes 顯然,一般情況下,在pcb的上下表面都應設計保護環,二者通過金屬化孔相連。