Method of connecting and disconnecting a board in a hot state

Details Method of connecting and disconnecting a board in a hot state Method of connecting and disconnecting a board in a hot state

1989-11-13

1991-09-24

Pellinen, A. D.

Electrical transmission or interconnection systems

Switching systems

With operation facilitating feature

307 31, 307 38, 371 81, G06F 1340

Patent

active

050516060

ABSTRACT:
A device for connecting and disconnecting a board in a hot state includes a board and a mother-board. The board has mounted thereon dynamic elements through which a low electric current flows during a clock signal disabled state, and a clock signal enable or disable circuit. When a board must be connected or disconnected in the hot state due to a fault therein, the clock circuit in the board is set to the disabled state. The board is connected or disconnected while a low current flows therethrough, after a new board is connected, the clock signal disabled state is released. Thus a connector connecting the board with the mother-board cannot be damaged by a flow of a large electric current during a connection or disconnection of the boards.

REFERENCES:
patent: 4200865 (1980-04-01), Morioka et al.
patent: 4510553 (1985-04-01), Faultersack

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