BI-DIRECTIONAL FIELD EFFECT TRANSISTOR (FET) SWITCH
Original Publication Date: 2000-Jan-01
Included in the Prior Art Database: 2002-Sep-09
In some applications it is required to switch cur- rent flowing in different directions, for example in a battery backup application which will require charge to flow into the battery while input power is good and charge to flow out of the battery in the event of the input power failing. Known methods have used relays with the coil being driven by the control sig- nal and the battery current flowing in/out of the relay contacts.