power fail logic

Logic circuits that protect a system in the event of primary power failure. Circuits automatically store current operating parameters. When power is restored, the circuits make use of this information to continue proper operation.; 在發生主電源故障時能保護系統的邏輯電路,該電路可自動存儲現行操作參數。當電源恢復后,該電路可以使用這些信息繼續正常運行。