Circuit Card Actuation and Deactuation With Power on
Original Publication Date: 1988-May-01
Included in the Prior Art Database: 2005-Feb-15
The arrangement herein shown and described affords means for preventing large current surges and arcing during function insertion or removal in a digital system, without requiring a complete shut down of the power supplied to the system, and is especially useful where circuit cards are to be added or removed. This arrangement comprises a power distribution system which can be incorporated into a card-on-board package using individually actuated (for each card) zero insertion force (ZIF) connectors. An auxiliary power connector of conventional spring-on-tab construction is added along an unused side of the card. Fig. 1 shows a diagrammatic view of a PC card 1, having a plurality of input/output (I/O) contacts 3 arranged along the top and bottom edges of the card.